10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

(Mark One)
☒	QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

FOR THE QUARTERLY PERIOD ENDED SEPTEMBER 30, 2022

or
☐	TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
	FOR THE TRANSITION PERIOD FROM TO
	COMMISSION FILE NUMBER	001-38629

EQUITRANS MIDSTREAM CORPORATION

(Exact name of registrant as specified in its charter) 

Pennsylvania	83-0516635
(State or other jurisdiction of incorporation or organization)	(IRS Employer Identification No.)

2200 Energy Drive, Canonsburg, Pennsylvania     15317

(Address of principal executive offices)     (Zip code)

(724) 271-7600

(Registrant's telephone number, including area code)

Securities registered pursuant to Section 12(b) of the Act:

Title of each class	Trading Symbol	Name of each exchange on which registered
Common Stock, no par value	ETRN	New York Stock Exchange

Indicate by check mark whether the registrant: (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.    Yes  ☒  No  ☐

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§ 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).    Yes  ☒  No  ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company.  See the definitions of "large accelerated filer," "accelerated filer," "smaller reporting company" and "emerging growth company" in Rule 12b-2 of the Exchange Act.

Large Accelerated Filer	☒	Accelerated Filer	☐	Emerging Growth Company	☐
Non-Accelerated Filer	☐	Smaller Reporting Company	☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  ☐

 Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).        Yes  ☐  No  ☒

The number of shares of common stock outstanding (in thousands), as of October 31, 2022: 432,781

EQUITRANS MIDSTREAM CORPORATION

Index

			Page No.
Glossary of Commonly Used Terms, Abbreviations and Measurements			3
Part I.	Financial Information:
Item 1.		Financial Statements (Unaudited):
		Statements of Consolidated Comprehensive Income for the Three and Nine Months Ended September 30, 2022 and 2021	5
		Statements of Consolidated Cash Flows for the Nine Months Ended September 30, 2022 and 2021	6
		Consolidated Balance Sheets as of September 30, 2022 and December 31, 2021	7
		Statements of Consolidated Equity and Mezzanine Equity for the Three and Nine Months Ended September 30, 2022 and 2021	8
		Notes to Consolidated Financial Statements	10
Item 2.		Management's Discussion and Analysis of Financial Condition and Results of Operations	21
Item 3.		Quantitative and Qualitative Disclosures About Market Risk	37
Item 4.		Controls and Procedures	39
Part II.	Other Information:
Item 1.		Legal Proceedings	40
Item 1A.		Risk Factors	43
Item 2.		Unregistered Sales of Equity Securities and Use of Proceeds	44
Item 6.		Exhibits	46
Signature			47

2

EQUITRANS MIDSTREAM CORPORATION

Glossary of Commonly Used Terms, Abbreviations and Measurements

2021 Water Services Agreement – that certain mixed-use water services agreement entered into on October 22, 2021 by the Company and EQT (as defined below), as subsequently amended, which became effective on March 1, 2022 and replaced the Water Services Letter Agreement (as defined below) and certain other existing Pennsylvania water services agreements.

Allowance for Funds Used During Construction (AFUDC) – carrying costs for the construction of certain long-lived regulated assets are capitalized and amortized over the related assets' estimated useful lives. The capitalized amount for construction of regulated assets includes interest cost and a designated cost of equity for financing the construction of these regulated assets.

Amended EQM Credit Facility – that certain Third Amended and Restated Credit Agreement, dated as of October 31, 2018, among EQM, as borrower, Wells Fargo Bank, National Association, as the administrative agent, swing line lender, and a letter of credit (L/C) issuer, the lenders party thereto from time to time and any other persons party thereto from time to time (as amended by that certain First Amendment to Third Amended and Restated Credit Agreement, dated as of March 30, 2020, by that certain Second Amendment to Third Amended and Restated Credit Agreement, dated April 16, 2021, by that certain Third Amendment to the Third Amended and Restated Credit Agreement, dated as of April 22, 2022, and as may be further amended, restated, amended and restated, supplemented or otherwise modified from time to time). For the avoidance of doubt, any reference to the Amended EQM Credit Facility as of any particular date shall mean the Amended EQM Credit Facility as in effect on such date.

Amended 2019 EQM Term Loan Agreement - that certain term loan agreement entered into in August 2019 and amended on March 30, 2020 by EQM, which term loan agreement was terminated on January 8, 2021.

Annual Revenue Commitments (ARC or ARCs) - contractual term in a water services agreement that obligates the customer to pay for a fixed amount of water services annually.

Appalachian Basin – the area of the United States composed of those portions of West Virginia, Pennsylvania, Ohio, Maryland, Kentucky and Virginia that lie in the Appalachian Mountains.

associated gas – natural gas that is produced as a byproduct of principally oil production activities.

British thermal unit – a measure of the amount of energy required to raise the temperature of one pound of water one-degree Fahrenheit.

delivery point – the point where gas is delivered into a downstream gathering system or transmission pipeline.

EQM – EQM Midstream Partners, LP and its subsidiaries. EQM is a wholly owned subsidiary of Equitrans Midstream Corporation.

EQT – EQT Corporation (NYSE: EQT) and its subsidiaries.

EQT Global GGA – that certain Gas Gathering and Compression Agreement entered into on February 26, 2020 (the EQT Global GGA Effective Date) by the Company with EQT and certain affiliates of EQT for the provision of certain gas gathering services to EQT in the Marcellus and Utica Shales of Pennsylvania and West Virginia, as subsequently amended.

firm contracts – contracts for gathering, transmission, storage and water services that reserve an agreed upon amount of pipeline or storage capacity regardless of the capacity used by the customer during each month, and generally obligate the customer to pay a fixed, monthly charge.

firm reservation fee revenues – contractually obligated revenues that include fixed monthly charges under firm contracts and fixed volumetric charges under MVC (as defined below) and ARC (as defined above) contracts.

gas – natural gas.

liquefied natural gas (LNG) – natural gas that has been cooled to minus 161 degrees Celsius for transportation, typically by ship. The cooling process reduces the volume of natural gas by 600 times.

Minimum volume commitments (MVC or MVCs) – contracts for gathering or water services that obligate the customer to pay for a fixed amount of volumes daily, monthly, annually or over the life of the contract.

3

Mountain Valley Pipeline (MVP) – an estimated 300-mile, 42-inch diameter natural gas interstate pipeline with a targeted capacity of 2.0 Bcf per day that is designed to span from the Company's existing transmission and storage system in Wetzel County, West Virginia to Pittsylvania County, Virginia, providing access to the growing Southeast demand markets.

Mountain Valley Pipeline, LLC (MVP Joint Venture) – a joint venture among the Company and, as applicable, affiliates of each of NextEra Energy, Inc., Consolidated Edison, Inc. (Con Edison), AltaGas Ltd. and RGC Resources, Inc. that is constructing the MVP and the MVP Southgate (as defined below) projects.

MVP Southgate – a proposed 75-mile interstate pipeline that was approved by the FERC to extend from the MVP at Pittsylvania County, Virginia to new delivery points in Rockingham and Alamance Counties, North Carolina. The project is subject to ongoing discussions between the MVP Joint Venture and the project shipper, Dominion Energy North Carolina, as discussed in Part I, "Outlook" in "Item 2. Management's Discussion and Analysis of Financial Condition and Results of Operations" of this Quarterly Report on Form 10-Q.

natural gas liquids (NGLs) – those hydrocarbons in natural gas that are separated from the gas as liquids through the process of absorption, condensation, adsorption or other methods in gas processing plants. Natural gas liquids include ethane, propane, pentane, butane and iso-butane.

Preferred Interest – the preferred interest that the Company has in EQT Energy Supply, LLC (EES), a subsidiary of EQT.

throughput – the volume of natural gas transported or passing through a pipeline, plant, terminal or other facility during a particular period.

Water Services Letter Agreement – that certain letter agreement entered into on February 26, 2020 by the Company and EQT, pursuant to which EQT agreed to utilize the Company for the provision of water services in Pennsylvania under existing water services agreements and new water services agreements if negotiated between the parties, which letter agreement was replaced by the 2021 Water Services Agreement on March 1, 2022.

wellhead – the equipment at the surface of a well used to control the well's pressure and the point at which the hydrocarbons and water exit the ground. 

Unless the context otherwise requires, a reference to a “Note” herein refers to the accompanying Notes to Consolidated Financial Statements contained in Part I, "Item 1. Financial Statements."

Abbreviations	Measurements
ASC – Accounting Standards Codification	Btu = one British thermal unit
ASU – Accounting Standards Update	BBtu = billion British thermal units
EPA – U.S. Environmental Protection Agency	Bcf   = billion cubic feet
FASB – Financial Accounting Standards Board	Mcf = thousand cubic feet
FERC – U.S. Federal Energy Regulatory Commission	MMcf  = million cubic feet
GAAP – United States Generally Accepted Accounting Principles	MMgal  = million gallons
IRS – United States Internal Revenue Service
NGA – Natural Gas Act of 1938, as amended
NYMEX – New York Mercantile Exchange
NYSE – New York Stock Exchange
SEC – U.S. Securities and Exchange Commission

4

PART I.  FINANCIAL INFORMATION

Item 1. Financial Statements

EQUITRANS MIDSTREAM CORPORATION

Statements of Consolidated Comprehensive Income (Unaudited)

	Three Months Ended September 30,				Nine Months Ended September 30,
	2022		2021		2022		2021
	(Thousands, except per share amounts)
Operating revenues	$	331,751	$	342,074	$	1,002,508	$	1,070,365
Operating expenses:
Operating and maintenance	35,297		38,743		100,573		111,004
Selling, general and administrative	33,348		33,560		90,483		104,536
Depreciation	68,572		66,021		203,272		203,954
Amortization of intangible assets	16,204		16,204		48,614		48,614
Impairment of long-lived assets	—		—		—		56,178
Total operating expenses	153,421		154,528		442,942		524,286
Operating income	178,330		187,546		559,566		546,079
Equity income (a)	48		8,461		91		14,385
Impairment of equity method investment	(583,057)		—		(583,057)		—
Other income, net	893		21,199		21,414		38,251
Loss on extinguishment of debt	—		—		(24,937)		(41,025)
Net interest expense	(101,085)		(94,101)		(289,323)		(284,887)
(Loss) income before income taxes	(504,871)		123,105		(316,246)		272,803
Income tax (benefit) expense	(1,275)		32,200		8,636		65,180
Net (loss) income	(503,596)		90,905		(324,882)		207,623
Net income attributable to noncontrolling interests	2,932		3,557		10,655		10,479
Net (loss) income attributable to Equitrans Midstream	(506,528)		87,348		(335,537)		197,144
Preferred dividends	14,628		14,628		43,884		43,884
Net (loss) income attributable to Equitrans Midstream common shareholders	$	(521,156)	$	72,720	$	(379,421)	$	153,260
(Loss) earnings per share of common stock attributable to Equitrans Midstream common shareholders - basic	$	(1.20)	$	0.17	$	(0.88)	$	0.35
(Loss) earnings per share of common stock attributable to Equitrans Midstream common shareholders - diluted	$	(1.20)	$	0.17	$	(0.88)	$	0.35
Weighted average common shares outstanding - basic	433,348		433,017		433,333		433,001
Weighted average common shares outstanding - diluted	433,348		433,675		433,333		433,412
Statement of comprehensive income:
Net (loss) income	$	(503,596)	$	90,905	$	(324,882)	$	207,623
Other comprehensive income, net of tax:
Pension and other post-retirement benefits liability adjustment, net of tax expense of $10, $12, $34, and $36	36		34		104		103
Other comprehensive income	36		34		104		103
Comprehensive (loss) income	(503,560)		90,939		(324,778)		207,726
Less: Comprehensive income attributable to noncontrolling interests	2,932		3,557		10,655		10,479
Less: Comprehensive income attributable to preferred dividends	14,628		14,628		43,884		43,884
Comprehensive (loss) income attributable to Equitrans Midstream common shareholders	$	(521,120)	$	72,754	$	(379,317)	$	153,363
Dividends declared per common share	$	0.15	$	0.15	$	0.45	$	0.45

(a)Represents equity income from Mountain Valley Pipeline, LLC (the MVP Joint Venture). See Note 6.

The accompanying notes are an integral part of these consolidated financial statements.

5

EQUITRANS MIDSTREAM CORPORATION

Statements of Consolidated Cash Flows (Unaudited)

	Nine Months Ended September 30,
	2022		2021
	(Thousands)
Cash flows from operating activities:
Net (loss) income	$	(324,882)	$	207,623
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	203,272		203,954
Amortization of intangible assets	48,614		48,614
Deferred income taxes	8,101		61,267
Impairment of long-lived assets and equity method investment	583,057		56,178
Equity income (a)	(91)		(14,385)
Other income, net	(21,681)		(38,160)
Loss on extinguishment of debt	24,937		41,025
Non-cash long-term compensation expense	10,304		10,590
Changes in other assets and liabilities:
Accounts receivable	34,921		73,348
Accounts payable	2,255		(1,765)
Accrued interest	(57,375)		(48,893)
Deferred revenue	261,013		225,315
Other assets and other liabilities	(25,906)		(2,687)
Net cash provided by operating activities	746,539		822,024
Cash flows from investing activities:
Capital expenditures	(276,828)		(211,072)
Capital contributions to the MVP Joint Venture	(158,178)		(178,953)
Proceeds from sale of gathering assets	3,719		—
Principal payments received on the Preferred Interest	4,110		3,885
Net cash used in investing activities	(427,177)		(386,140)
Cash flows from financing activities:
Proceeds from revolving credit facility borrowings	284,500		457,500
Payments on revolving credit facility borrowings	(394,500)		(600,000)
Proceeds from the issuance of long-term debt	1,000,000		1,900,000
Debt discounts, debt issuance costs and credit facility arrangement fees	(19,880)		(29,904)
Payment for retirement of long-term debt	(1,021,459)		(1,936,250)
Dividends paid to holders of Equitrans Midstream Preferred Shares	(43,884)		(43,884)
Dividends paid to common shareholders	(194,733)		(194,624)
Distributions to noncontrolling interests	(16,000)		(2,500)
Net cash used in financing activities	(405,956)		(449,662)
Net change in cash and cash equivalents	(86,594)		(13,778)
Cash and cash equivalents at beginning of period	134,661		208,023
Cash and cash equivalents at end of period	$	48,067	$	194,245
Cash paid during the period for:
Interest, net of amount capitalized	$	339,285	$	326,456
Income taxes	$	1,243	$	—

(a)Represents equity income from the MVP Joint Venture. See Note 6.

The accompanying notes are an integral part of these consolidated financial statements.

6

EQUITRANS MIDSTREAM CORPORATION

Consolidated Balance Sheets (Unaudited)

	September 30, 2022		December 31, 2021
	(Thousands)
ASSETS
Current assets:
Cash and cash equivalents	$	48,067	$	134,661
Accounts receivable (net of allowance for credit losses of $2,508 and $2,696 as of September 30, 2022 and December 31, 2021, respectively)	230,932		252,301
Other current assets	53,109		59,867
Total current assets	332,108		446,829
Property, plant and equipment	9,271,014		9,004,602
Less: accumulated depreciation	(1,412,301)		(1,217,099)
Net property, plant and equipment	7,858,713		7,787,503
Investment in unconsolidated entity (a)	784,384		1,239,039
Goodwill	486,698		486,698
Net intangible assets	603,157		651,771
Other assets	321,444		308,924
Total assets	$	10,386,504	$	10,920,764
LIABILITIES, MEZZANINE EQUITY AND SHAREHOLDERS' EQUITY
Current liabilities:
Current portion of long-term debt	$	98,941	$	—
EQT Cash Option (as defined in Note 4)	195,820		—
Accounts payable	51,177		59,627
Capital contributions payable to the MVP Joint Venture	40,989		72,188
Accrued interest	94,534		151,909
Accrued liabilities	59,782		83,852
Total current liabilities	541,243		367,576
Long-term liabilities:
Revolving credit facility borrowings	395,000		505,000
Long-term debt	6,332,378		6,434,945
Contract liability	886,126		821,342
Regulatory and other long-term liabilities	108,272		99,333
Total liabilities	8,263,019		8,228,196
Mezzanine equity:
Equitrans Midstream Preferred Shares, 30,018 shares issued and outstanding as of September 30, 2022 and December 31, 2021	681,842		681,842
Shareholders' equity:
Common stock, no par value, 432,781 and 432,522 shares issued and outstanding as of September 30, 2022 and December 31, 2021, respectively	3,969,591		3,957,756
Retained deficit	(3,003,848)		(2,428,171)
Accumulated other comprehensive loss	(1,950)		(2,054)
Total common shareholders' equity	963,793		1,527,531
Noncontrolling interests	477,850		483,195
Total shareholders' equity	1,441,643		2,010,726
Total liabilities, mezzanine equity and shareholders' equity	$	10,386,504	$	10,920,764

(a)Represents investment in the MVP Joint Venture. See Note 6.

The accompanying notes are an integral part of these consolidated financial statements.

7

EQUITRANS MIDSTREAM CORPORATION

Statements of Consolidated Shareholders' Equity and Mezzanine Equity (Unaudited)

												Mezzanine
												Equity
						Accumulated						Equitrans
	Common Stock					Other						Midstream
	Shares	No		Retained		Comprehensive		Noncontrolling		Total		Preferred
	Outstanding	Par Value		Deficit		Loss		Interests		Equity		Shares
	(Thousands, except per share amounts)
Balance at January 1, 2021	432,470	$	3,941,295	$	(728,959)	$	(2,229)	$	471,165	$	3,681,272	$	681,842
Other comprehensive income (net of tax):
Net income	—	—		58,055		—		3,914		61,969		14,628
Pension and other post-retirement benefits liability adjustment, net of tax expense of $12	—	—		—		34		—		34		—
Dividends on common shares ($0.15 per share)	—	—		(64,984)		—		—		(64,984)		—
Share-based compensation plans, net	28	4,662		—		—		—		4,662		—
Distributions paid to noncontrolling interests	—	—		—		—		(2,500)		(2,500)		—
Dividends paid to holders of Equitrans Midstream Preferred Shares ($0.4873 per share)	—	—		—		—		—		—		(14,628)
Balance at March 31, 2021	432,498	$	3,945,957	$	(735,888)	$	(2,195)	$	472,579	$	3,680,453	$	681,842
Other comprehensive income (net of tax):
Net income	—	—		22,485		—		3,008		25,493		14,628
Pension and other post-retirement benefits liability adjustment, net of tax expense of $12	—	—		—		35		—		35		—
Dividends on common shares ($0.15 per share)	—	—		(64,750)		—		—		(64,750)		—
Share-based compensation plans, net	7	3,635		—		—		—		3,635		—
Dividends paid to holders of Equitrans Midstream Preferred Shares ($0.4873 per share)	—	—		—		—		—		—		(14,628)
Balance at June 30, 2021	432,505	$	3,949,592	$	(778,153)	$	(2,160)	$	475,587	$	3,644,866	$	681,842
Other comprehensive income (net of tax):
Net income	—	—		72,720		—		3,557		76,277		14,628
Pension and other post-retirement benefits liability adjustment, net of tax expense of $12	—	—		—		34		—		34		—
Dividends on common shares ($0.15 per share)	—	—		(65,336)		—		—		(65,336)		—
Share-based compensation plans, net	17	3,304		—		—		—		3,304		—
Dividends paid to holders of Equitrans Midstream Preferred Shares ($0.4873 per share)	—	—		—		—		—		—		(14,628)
Balance at September 30, 2021	432,522	$	3,952,896	$	(770,769)	$	(2,126)	$	479,144	$	3,659,145	$	681,842

8

												Mezzanine
												Equity
						Accumulated						Equitrans
	Common Stock					Other						Midstream
	Shares	No		Retained		Comprehensive		Noncontrolling		Total		Preferred
	Outstanding	Par Value		Deficit		Loss		Interests		Equity		Shares
	(Thousands, except per share amounts)
Balance at January 1, 2022	432,522	$	3,957,756	$	(2,428,171)	$	(2,054)	$	483,195	$	2,010,726	$	681,842
Other comprehensive income (net of tax):
Net income	—	—		86,505		—		3,775		90,280		14,628
Pension and other post-retirement benefits liability adjustment, net of tax expense of $12	—	—		—		34		—		34		—
Dividends on common shares ($0.15 per share)	—	—		(65,584)		—		—		(65,584)		—
Share-based compensation plans, net	155	2,832		—		—		—		2,832		—
Dividends paid to holders of Equitrans Midstream Preferred Shares ($0.4873 per share)	—	—		—		—		—		—		(14,628)
Balance at March 31, 2022	432,677	$	3,960,588	$	(2,407,250)	$	(2,020)	$	486,970	$	2,038,288	$	681,842
Other comprehensive income (net of tax):
Net income	—	—		55,230		—		3,948		59,178		14,628
Pension and other post-retirement benefits liability adjustment, net of tax expense of $12	—	—		—		34		—		34		—
Dividends on common shares ($0.15 per share)	—	—		(64,991)		—		—		(64,991)		—
Share-based compensation plans, net	104	4,470		—		—		—		4,470		—
Dividends paid to holders of Equitrans Midstream Preferred Shares ($0.4873 per share)	—	—		—		—		—		—		(14,628)
Balance at June 30, 2022	432,781	$	3,965,058	$	(2,417,011)	$	(1,986)	$	490,918	$	2,036,979	$	681,842
Other comprehensive (loss) income (net of tax):
Net (loss) income	—	—		(521,156)		—		2,932		(518,224)		14,628
Pension and other post-retirement benefits liability adjustment, net of tax expense of $10	—	—		—		36		—		36		—
Dividends on common shares ($0.15 per share)	—	—		(65,681)		—		—		(65,681)		—
Share-based compensation plans, net	—	4,533		—		—		—		4,533		—
Distributions paid to noncontrolling interests	—	—		—		—		(16,000)		(16,000)		—
Dividends paid to holders of Equitrans Midstream Preferred Shares ($0.4873 per share)	—	—		—		—		—		—		(14,628)
Balance at September 30, 2022	432,781	$	3,969,591	$	(3,003,848)	$	(1,950)	$	477,850	$	1,441,643	$	681,842

The accompanying notes are an integral part of these consolidated financial statements.

9

EQUITRANS MIDSTREAM CORPORATION

Notes to Consolidated Financial Statements (Unaudited)

1.    Financial Statements

Nature of Business. The Company provides midstream services to its customers in Pennsylvania, West Virginia and Ohio through its three primary assets: the gathering system, which includes predominantly dry gas gathering systems of high-pressure gathering lines; the transmission system, which includes FERC-regulated interstate pipelines and storage systems; and the water network, which primarily consists of water pipelines and other facilities that support well completion and produced water handling activities.

Basis of Presentation. References in these financial statements to Equitrans Midstream or the Company refer collectively to Equitrans Midstream Corporation and its consolidated subsidiaries for all periods presented, unless otherwise indicated.

The accompanying unaudited consolidated financial statements have been prepared in accordance with generally accepted accounting principles in the United States (GAAP) for interim financial information and with the requirements of Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by GAAP for complete financial statements. In the opinion of management, these unaudited consolidated financial statements include all adjustments (consisting of only normal, recurring adjustments, unless otherwise disclosed in this Quarterly Report on Form 10-Q) necessary for a fair presentation of the financial position of the Company as of September 30, 2022, the results of its operations and equity for the three and nine months ended September 30, 2022 and 2021 and its cash flows for the nine months ended September 30, 2022 and 2021. The consolidated balance sheet at December 31, 2021 has been derived from the audited financial statements at that date, but does not include all of the information and notes required by GAAP for complete financial statements. This Quarterly Report on Form 10-Q should be read in conjunction with the Company's Annual Report on Form 10-K for the year ended December 31, 2021, which includes all disclosures required by GAAP.

Due to, among other things, the seasonal nature of the Company's utility customer contracts, as well as producers’ well completion activities and varying needs for fresh and produced water (which are primarily driven by horizontal lateral lengths and the number of completion stages per well), the interim statements for the three and nine months ended September 30, 2022 are not necessarily indicative of the results that may be expected for the year ending December 31, 2022.

For further information, refer to the Company's annual consolidated financial statements and related notes in the Company's Annual Report on Form 10-K for the year ended December 31, 2021, as well as Part I, "Item 2. Management's Discussion and Analysis of Financial Condition and Results of Operations" contained herein.

Recently Issued Accounting Standards.

In March 2020, the FASB issued ASU 2020-04, Reference Rate Reform (Topic 848), which provides practical expedients for contract modifications and certain hedging relationships associated with the transition from reference rates that are expected to be discontinued. This guidance is applicable to the calculation of each dividend following March 31, 2024 for the Equitrans Midstream Preferred Shares pursuant to the Company's Second Amended and Restated Articles of Incorporation, as well as any Company contracts that use the London Inter-Bank Offered Rate as a reference rate. The ASU was effective immediately but is only available through December 31, 2022. In April 2022, the FASB proposed deferring the sunset date for applying reference rate reform relief in Topic 848 to December 31, 2024. The Company is currently evaluating the potential impact of adopting this standard on its financial statements and related disclosures.

In August 2020, the FASB issued ASU 2020-06, Accounting for Convertible Instruments and Contracts in an Entity’s Own Equity, which simplifies the accounting for convertible debt and convertible preferred stock by removing the requirements to separately present certain conversion features in equity. In addition, the amendments in the ASU 2020-06 also simplify the guidance in ASC Subtopic 815-40, Derivatives and Hedging: Contracts in Entity’s Own Equity, by removing certain criteria that must be satisfied in order to classify a contract as equity. Finally, the amendments revise the guidance on calculating earnings per share, requiring use of the if-converted method for all convertible instruments and rescinding an entity’s ability to rebut the presumption of share settlement for instruments that may be settled in cash or other assets. The amendments were effective for fiscal years beginning after December 15, 2021. The Company adopted this standard on January 1, 2022 with no significant effect on the Company's financial statements or related disclosures.

2.     Impairment of Long-Lived Assets

Long-Lived Assets. As of June 30, 2021, the Company performed a recoverability test of the Equitrans Water Services (OH) LLC (Ohio Water) long-lived assets due to decreased producer activity in Ohio within the Company's water services segment. As a result of the recoverability test, management determined that the carrying value of the Ohio Water long-lived assets (which

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consisted of water pipelines, impoundment facilities, pumping stations, take point facilities and measurement facilities that support well completion activities and collect flowback and produced water for recycling or disposal in Ohio) was not recoverable under ASC 360, Impairment Testing: Long-Lived Assets Classified as Held and Used. The Company estimated the fair value of the Ohio Water asset group and determined that the fair value was less than the assets’ carrying value, which resulted in impairment charges of approximately $56.2 million to the Ohio Water assets within the Company's Water segment. The non-cash impairment charge was recognized during the second quarter of 2021 and is included in the impairment of long-lived assets line on the statements of consolidated comprehensive income.

Equity Method Investment. In connection with its assessment as of September 30, 2022, the Company identified an increased risk of one or more permitting delays resulting primarily from recent legal developments and regulatory uncertainties, as well as macroeconomic pressures primarily due to increased interest rates impacting the discount rate used within the estimated fair value of its investment in the MVP Joint Venture. The Company considers these factors to be indicators of a decline in value. As such, the Company evaluated if the carrying value of its equity method investment in the MVP Joint Venture as of September 30, 2022 exceeded the fair value and, if so, whether that decline in value was other-than-temporary.

The Company estimated the fair value of its investment in the MVP Joint Venture using an income approach that primarily considered revised probability-weighted scenarios of discounted future net cash flows based on the estimates of total project costs and revenues. These scenarios reflected assumptions and judgments regarding potential delays and cost increases resulting from various ongoing legal and regulatory matters affecting the MVP and MVP Southgate projects. The Company’s analysis also took into account, among other things, probability-weighted growth expectations from additional compression expansion opportunities. The Company generally used an after-tax discount rate of 7.5% in the analysis derived based on a market participant approach. The Company considered scenarios under which ongoing or new legal and regulatory matters further delay the completion and increase the total costs of the project; all required legal and regulatory approvals and authorizations and certain compression expansion opportunities are realized; and the MVP project is canceled. As a result of the assessment, the Company recognized a pre-tax impairment charge of approximately $583 million that reduced the carrying value of its equity investment in the MVP Joint Venture to approximately $784 million as of September 30, 2022. Given the significant assumptions and judgments used in estimating the fair value of the Company's investment in the MVP Joint Venture, the fair value of the investment in the MVP Joint Venture represents a Level 3 measurement.

There is risk that the Company’s equity investment in the MVP Joint Venture may be further impaired in the future. There are ongoing (and may be future) legal and regulatory matters related to the MVP project, any of which could affect the ability to complete or operate the project, as well as legal and regulatory matters related to the MVP Southgate project that must be resolved in connection with the project. Assumptions and estimates utilized in assessing the fair value of the Company’s investment in the MVP Joint Venture may change depending on the nature or timing of resolutions to the legal and regulatory matters or based on other relevant developments. Adverse changes in circumstances relevant to the likelihood of project or expansion completion could prompt the Company, in future assessments, to apply a lower probability of project or expansion completion and such changes in assumptions or estimates (including probability) could have a material adverse effect on the fair value of the Company's investment in the MVP Joint Venture and potentially result in an additional impairment, which could have a material adverse effect on the Company's results of operations and financial position.

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3.    Financial Information by Business Segment

The Company reports its operations in three segments that reflect its three lines of business of Gathering, Transmission and Water, which reflects the manner in which management evaluates the business for making operating decisions and assessing performance.

	Three Months Ended September 30,				Nine Months Ended September 30,
	2022		2021		2022		2021
	(Thousands)
Revenues from customers:
Gathering	$	227,180	$	243,816	$	672,284	$	733,844
Transmission	91,557		90,886		293,430		295,203
Water	13,014		7,372		36,794		41,318
Total operating revenues	$	331,751	$	342,074	$	1,002,508	$	1,070,365
Operating income (loss):
Gathering	$	112,279	$	132,582	$	347,464	$	399,309
Transmission	64,077		59,703		209,480		203,153
Water (a)	2,342		(4,414)		3,606		(55,577)
Headquarters (b)	(368)		(325)		(984)		(806)
Total operating income	$	178,330	$	187,546	$	559,566	$	546,079
Reconciliation of operating income to net (loss) income:
Equity income (c)	$	48	$	8,461	$	91	$	14,385
Impairment of equity method investment (c)	(583,057)		—		(583,057)		—
Other income, net (d)	893		21,199		21,414		38,251
Loss on extinguishment of debt	—		—		(24,937)		(41,025)
Net interest expense	(101,085)		(94,101)		(289,323)		(284,887)
Income tax (benefit) expense	(1,275)		32,200		8,636		65,180
Net (loss) income	$	(503,596)	$	90,905	$	(324,882)	$	207,623

(a)Impairment of long-lived assets of $56.2 million for the nine months ended September 30, 2021 was included in Water operating income (loss). See Note 2 for further information.

(b)Includes certain unallocated corporate expenses.

(c)Equity income and impairment of equity method investment are included in the Transmission segment.

(d)Includes unrealized (losses) gains on derivative instruments and gain on sale of gathering assets recorded in the Gathering segment.

	September 30, 2022		December 31, 2021
	(Thousands)
Segment assets:
Gathering	$	7,647,237	$	7,638,877
Transmission (a)	2,288,144		2,769,097
Water	196,004		151,151
Total operating segments	10,131,385		10,559,125
Headquarters, including cash	255,119		361,639
Total assets	$	10,386,504	$	10,920,764

(a)The equity investment in the MVP Joint Venture is included in the Transmission segment.

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	Three Months Ended September 30,				Nine Months Ended September 30,
	2022		2021		2022		2021
	(Thousands)
Depreciation:
Gathering	$	49,125	$	47,441	$	145,953	$	140,899
Transmission	13,909		13,835		41,707		41,461
Water	5,162		4,364		14,483		20,740
Headquarters	376		381		1,129		854
Total	$	68,572	$	66,021	$	203,272	$	203,954
Capital expenditures:
Gathering (a)	$	73,589	$	62,916	$	195,925	$	170,709
Transmission (b)	12,429		5,755		22,994		17,050
Water	17,041		10,803		49,132		20,430
Headquarters	—		83		13		1,455
Total (c)	$	103,059	$	79,557	$	268,064	$	209,644

(a)Includes capital expenditures related to the noncontrolling interest in Eureka Midstream Holdings, LLC (Eureka Midstream) of approximately $5.9 million and $17.6 million for the three and nine months ended September 30, 2022, respectively, and approximately $4.8 million and $10.6 million for the three and nine months ended September 30, 2021, respectively.

(b)Transmission capital expenditures do not include aggregate capital contributions made to the MVP Joint Venture for the MVP and MVP Southgate projects of approximately $46.4 million and $158.2 million for the three and nine months ended September 30, 2022, respectively, and approximately $94.3 million and $179.0 million for the three and nine months ended September 30, 2021, respectively.

(c)The Company accrues capital expenditures when the work has been completed but the associated bills have not yet been paid. Accrued capital expenditures are excluded from the statements of consolidated cash flows until they are paid. The net impact of non-cash capital expenditures, including the effect of accrued capital expenditures, transfers to/from inventory as assets are completed/assigned to a project and capitalized share-based compensation costs, was $10.7 million and $8.8 million for the three and nine months ended September 30, 2022, respectively, and $1.2 million and $1.4 million for the three and nine months ended September 30, 2021, respectively.

4.    Revenue from Contracts with Customers

For the three and nine months ended September 30, 2022 and 2021, substantially all revenues recognized on the Company's statements of consolidated comprehensive income are from contracts with customers. As of September 30, 2022 and December 31, 2021, all receivables recorded on the Company's consolidated balance sheets represented performance obligations that have been satisfied and for which an unconditional right to consideration exists.

Summary of disaggregated revenues. The tables below provide disaggregated revenue information by business segment.

	Three Months Ended September 30, 2022
	Gathering		Transmission		Water		Total
	(Thousands)
Firm reservation fee revenues (a)	$	144,730	$	84,584	$	9,375	$	238,689
Volumetric-based fee revenues	82,450		6,973		3,639		93,062
Total operating revenues	$	227,180	$	91,557	$	13,014	$	331,751
	Three Months Ended September 30, 2021
	Gathering		Transmission		Water		Total
	(Thousands)
Firm reservation fee revenues (a)	$	151,004	$	84,053	$	1,061	$	236,118
Volumetric-based fee revenues	92,812		6,833		6,311		105,956
Total operating revenues	$	243,816	$	90,886	$	7,372	$	342,074

	Nine Months Ended September 30, 2022
	Gathering		Transmission		Water		Total
	(Thousands)
Firm reservation fee revenues (a)	$	415,932	$	272,129	$	24,502	$	712,563
Volumetric-based fee revenues	256,352		21,301		12,292		289,945
Total operating revenues	$	672,284	$	293,430	$	36,794	$	1,002,508
	Nine Months Ended September 30, 2021
	Gathering		Transmission		Water		Total
	(Thousands)
Firm reservation fee revenues (a)	$	448,556	$	269,239	$	3,834	$	721,629
Volumetric-based fee revenues	285,288		25,964		37,484		348,736
Total operating revenues	$	733,844	$	295,203	$	41,318	$	1,070,365

(a) Firm reservation fee revenues associated with Gathering included MVC unbilled revenues of approximately $8.5 million and $17.4 million for the three and nine months ended September 30, 2022, respectively. Firm reservation fee revenues associated with Gathering and Water included MVC unbilled revenues of approximately $5.5 million and $0.5 million, respectively, for the three months ended September 30, 2021, and approximately $12.4 million and $1.5 million, for the nine months ended September 30, 2021, respectively.

Contract assets. The Company's contract assets related to the Company's future MVC deficiency payments are generally expected to be collected within the next twelve months and are primarily included in other current assets in the Company's consolidated balance sheets until such time as the MVC deficiency payments are invoiced to the customer.

The following table presents changes in the Company's unbilled revenue balance during the nine months ended September 30, 2022 and 2021:

	Unbilled Revenue
	2022		2021
	(Thousands)
Balance as of beginning of period	$	16,772	$	18,618
Revenue recognized in excess of amounts invoiced (a)	19,436		21,908
Minimum volume commitments invoiced (b)	(14,884)		(23,373)
Amortization (c)	(334)		(78)
Balance as of end of period	$	20,990	$	17,075

(a)Primarily includes revenues associated with MVCs that are generally included in firm reservation fee revenues within the Gathering and Water segments. During the nine months ended September 30, 2021, also includes other contractual commitments of approximately $6.4 million.

(b)Unbilled revenues are transferred to accounts receivable once the Company has an unconditional right to consideration from the customer.

(c)Amortization of capitalized contract costs paid to customers over the expected life of the agreement.

Contract liabilities. The Company's contract liabilities consisted of deferred revenue primarily associated with the EQT Global GGA. Contract liabilities are classified as current or non-current according to when such amounts are expected to be recognized. As of September 30, 2022, total contract liabilities were $887.6 million, of which $1.5 million was classified as current and recorded in accrued liabilities and $886.1 million was classified as non-current and recorded in contract liability on the Company's consolidated balance sheet. As of December 31, 2021, total contract liabilities were $822.4 million, of which $1.1 million was classified as current and recorded in accrued liabilities and $821.3 million was classified as non-current and recorded in contract liability on the Company's consolidated balance sheet.

On July 8, 2022, the Company received written notice from EQT, pursuant to the EQT Global GGA, of EQT’s irrevocable election under the agreement to forgo up to approximately $145 million of potential gathering fee relief in the first twelve-month period beginning the first day of the quarter in which the MVP full in-service date occurs and up to approximately $90 million of potential gathering fee relief in the second such twelve-month period in exchange for a cash payment from the

Company to EQT in the amount of approximately $195.8 million (the EQT Cash Option). As a result of EQT’s election to forgo potential rate relief in exchange for the cash option payment, the Company recorded a reduction to the contract liability of approximately $195.8 million and an increase to the EQT Cash Option liability on the consolidated balance sheets as of September 30, 2022. The Company utilized borrowings under the Amended EQM Credit Facility to effect such payment and the payment was made to EQT on October 4, 2022.

The following table presents changes in the Company's contract liability balances during the nine months ended September 30, 2022 and 2021:

	Contract Liability
	2022		2021
	(Thousands)
Balance as of beginning of period	$	822,416	$	398,750
Amounts recorded during the period (a)	266,792		225,583
Change in estimated variable consideration (b)	(4,837)		—
Amounts transferred during the period (c)	(942)		(268)
EQT Cash Option in lieu of a portion of rate relief	(195,820)		—
Balance as of end of period	$	887,609	$	624,065

(a)Includes deferred billed revenue during the nine months ended September 30, 2022 and 2021 primarily associated with the EQT Global GGA.

(b)Change in estimated variable consideration represents the decrease in total deferred revenue required for gathering MVC revenue with a declining rate structure, resulting from the EQT Cash Option election that required total estimated gathering consideration to be increased.

(c)Deferred revenues are recognized as revenue upon satisfaction of the Company's performance obligation to the customer.

Summary of remaining performance obligations. The following table summarizes the estimated transaction price allocated to the Company's remaining performance obligations under all contracts with firm reservation fees, MVCs and/or ARCs as of September 30, 2022 that the Company will invoice or transfer from contract liabilities and recognize in future periods.

		2022(a)		2023		2024		2025		2026		Thereafter		Total
	(Thousands)
Gathering firm reservation fees		$	22,308	$	108,000	$	170,060	$	175,509	$	166,594	$	1,865,013	$	2,507,484
Gathering revenues supported by MVCs		112,587		461,028		431,793		450,995		462,291		3,499,289		5,417,983
Transmission firm reservation fees		98,135		366,701		382,971		366,757		360,929		3,316,261		4,891,754
Water revenues supported by ARCs		9,375		37,500		37,500		37,500		37,500		193,750		353,125
Total (b)		$	242,405	$	973,229	$	1,022,324	$	1,030,761	$	1,027,314	$	8,874,313	$	13,170,346

(a)    October 1, 2022 through December 31, 2022.

(b)    Includes assumptions regarding timing for placing certain projects in-service. Such assumptions may not be realized and delays in the in-service dates for projects have substantially altered, and additional delays may further substantially alter, the remaining performance obligations for certain contracts with firm reservation fees, MVCs and/or ARCs. The MVP Joint Venture is accounted for as an equity investment and those amounts are not included in the table above.

Based on total projected contractual revenues, including projected contractual revenues from future capacity expected from expansion projects that are not yet fully constructed or not yet fully in-service for which the Company has executed firm contracts, the Company's firm gathering contracts and firm transmission and storage contracts had weighted average remaining terms of approximately 14 years and 12 years, respectively, as of September 30, 2022.

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5.    Related Party Transactions

In the ordinary course of business, the Company engages in transactions with EQT and its affiliates, including but not limited to, entering into new or amending existing gathering agreements, transportation service and precedent agreements, storage agreements and/or water services agreements, however, based solely on information reported by EQT in a Schedule 13G/A filed with the SEC on April 28, 2022, EQT was no longer a related party of the Company as of April 22, 2022 and the amounts disclosed related to EQT below are accordingly presented with respect to the full 2021 periods during which EQT was considered a related party.

The following table summarizes the Company's related party transactions in the below-described portions of 2021.

	Three Months Ended September 30,		Nine Months Ended September 30,
	2021		2021
	(Thousands)
Operating revenues	$	220,781	$	668,837
Interest income from the Preferred Interest	1,433		4,353
Principal Payments received on the Preferred Interest	1,313		3,885

The following table summarizes the Company's related party receivables and payables.

	December 31, 2021
	(Thousands)
Accounts receivable	$	190,410
Contract asset	2,246
Preferred Interest	99,838
Contract liability	818,658

6.    Investment in Unconsolidated Entity

The MVP Joint Venture is constructing the MVP, an estimated 300-mile natural gas interstate pipeline that is designed to span from northern West Virginia to southern Virginia. The Company will operate the MVP and owned a 47.1% interest in the MVP project as of September 30, 2022. On November 4, 2019, Consolidated Edison, Inc. (Con Edison) exercised an option to cap its investment in the construction of the MVP project at approximately $530 million (excluding AFUDC). The Company and NextEra Energy, Inc. are obligated to, and RGC Resources, Inc., another member of the MVP Joint Venture owning an interest in the MVP project, has opted to, fund the shortfall in Con Edison's capital contributions, on a pro rata basis. Such funding by the Company and funding by other members has and will correspondingly increase the Company's and such other funding members' respective interests in the MVP project and decrease Con Edison's interest in the MVP project. As a result, based on the Company's targeted cost for the project of approximately $6.6 billion (excluding AFUDC), the Company's equity ownership in the MVP project will progressively increase from approximately 47.1% to approximately 48.1%. The MVP Joint Venture is a variable interest entity because it has insufficient equity to finance its activities during the construction stage of the project. The Company is not the primary beneficiary of the MVP Joint Venture because the Company does not have the power to direct the activities that most significantly affect the MVP Joint Venture's economic performance. Certain business decisions, such as decisions to make distributions of cash, require a greater than 66 2/3% ownership interest approval, and no one member owns more than a 66 2/3% interest.

In April 2018, the MVP Joint Venture announced the MVP Southgate project, which is a proposed 75-mile interstate pipeline that was approved by the FERC to extend from the MVP at Pittsylvania County, Virginia to new delivery points in Rockingham and Alamance Counties, North Carolina. The Company is expected to operate the MVP Southgate pipeline and owned a 47.2% interest in the MVP Southgate project as of September 30, 2022. The MVP Joint Venture continues to evaluate the MVP Southgate project, including engaging in discussions with the project shipper, Dominion Energy North Carolina, regarding options with respect to the project, including likely refining the project’s design, scope and timing in lieu of pursuing the project as originally contemplated. Dominion Energy North Carolina’s obligations under the precedent agreement in support of the original project are subject to certain conditions, including that the MVP Joint Venture would have completed construction of the project facilities by June 1, 2022, which deadline is subject to extension by virtue of previously declared events of force

14

majeure. The Company is unable to predict the results of the discussions between the MVP Joint Venture and Dominion Energy North Carolina, including any potential modifications to the project, or ultimate undertaking or completion of the project.

In the fourth quarter of 2021, the Company incurred an other-than-temporary decline in value in its equity investment in the MVP Joint Venture, primarily due to unfavorable decisions by the U.S. Fourth Circuit Court of Appeals that vacated and remanded key authorizations, that resulted in a pre-tax impairment charge of $1.9 billion. As a result of the impairment, the carrying value of the Company's equity investment in the MVP Joint Venture was reduced to $1.2 billion as of December 31, 2021. During the third quarter of 2022, the Company incurred an additional other-than-temporary decline in value in its equity investment in the MVP Joint Venture primarily due to increased uncertainty in the permitting process for the MVP project as a result of recent legal developments and regulatory uncertainties, as well as macroeconomic pressures primarily due to increased interest rates impacting the discount rate. As a result of the impairment, the carrying value of the Company's equity investment in the MVP Joint Venture was further reduced to $784 million as of September 30, 2022. There is risk that the Company's equity investment in the MVP Joint Venture may be further impaired in the future due to ongoing (and potentially future) legal and regulatory matters, as well as potential macroeconomic factors, including other than temporary market fluctuations, changes in interest rates, cost increases and other unanticipated events. While macroeconomic factors in and of themselves may not be a direct indicator of impairment, should an impairment indicator be identified in the future, macroeconomic factors such as changes in interest rates could ultimately impact the size and scope of any potential impairment.

In September 2022, based on the Company's targeted cost for the project, the MVP Joint Venture issued a capital call notice for the funding of the MVP project to MVP Holdco, LLC (MVP Holdco), a wholly owned subsidiary of the Company, for $40.7 million, of which $12.5 million was paid in October 2022, with the remaining $14.7 million and $13.5 million expected to be paid in November 2022 and December 2022, respectively. The capital contributions payable and the corresponding increase to the investment balance are reflected on the consolidated balance sheet as of September 30, 2022.

Pursuant to the MVP Joint Venture's limited liability company agreement, MVP Holdco is obligated to provide performance assurances, which may take the form of a guarantee from EQM (provided that EQM's debt is rated as investment grade in accordance with the requirements of the MVP Joint Venture's limited liability company agreement), a letter of credit or cash collateral, in favor of the MVP Joint Venture to provide assurance as to the funding of MVP Holdco's proportionate share of the construction budget for the MVP project.

In addition, pursuant to the MVP Joint Venture's limited liability company agreement, MVP Holdco is obligated to provide performance assurances in respect of MVP Southgate, which performance assurances may take the form of a guarantee from EQM (provided that EQM's debt is rated as investment grade in accordance with the requirements of the MVP Joint Venture's limited liability company agreement), a letter of credit or cash collateral.

Based on EQM’s credit rating levels, EQM has delivered credit support to the MVP Joint Venture in the form of letters of credit, which, in the case of the MVP project was in the amount of approximately $219.7 million and, in the case of the MVP Southgate, was in the amount of approximately $14.2 million, in each case, as of September 30, 2022. The amount of each of the letters of credit is subject to adjustment based upon the applicable project's construction budget. Upon the FERC’s initial release to begin construction of the MVP Southgate project, the Company's then-current letter of credit to support MVP Southgate will be terminated, and the Company will be obligated to deliver a new letter of credit (or provide another allowable form of performance assurance) in an amount equal to 33% of MVP Holdco’s proportionate share of the remaining capital obligations for the MVP Southgate project under the applicable construction budget.

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The following tables summarize the unaudited condensed consolidated financial statements of the MVP Joint Venture in relation to the MVP project.

Condensed Consolidated Balance Sheets

	September 30, 2022		December 31, 2021
	(Thousands)
Current assets	$	53,381	$	148,820
Non-current assets	6,675,168		6,432,288
Total assets	$	6,728,549	$	6,581,108
Current liabilities	$	115,062	$	160,331
Equity	6,613,487		6,420,777
Total liabilities and equity	$	6,728,549	$	6,581,108

Condensed Statements of Consolidated Operations

	Three Months Ended September 30,				Nine Months Ended September 30,
	2022		2021		2022		2021
	(Thousands)
Operating (expenses) income	$	(20)	$	(201)	$	20	$	(351)
Net interest income	120		5,517		172		9,402
AFUDC - equity	—		12,862		—		21,904
Net income	$	100	$	18,178	$	192	$	30,955

7.    Debt

Amended EQM Revolving Credit Facility. On April 22, 2022 (the Amendment Date), EQM entered into an amendment (the Amendment) to that certain Third Amended and Restated Credit Agreement, dated as of October 31, 2018, among EQM, as borrower, Wells Fargo Bank, National Association, as the administrative agent, swing line lender, and an L/C issuer, the lenders party thereto from time to time and any other persons party thereto from time to time (as amended by that certain First Amendment to Third Amended and Restated Credit Agreement, dated as of March 30, 2020, and by that certain Second Amendment to Third Amended and Restated Credit Agreement, dated as of April 16, 2021) (as amended by the Amendment and as may be further amended, restated, amended and restated, supplemented or otherwise modified from time to time, the Amended EQM Credit Facility). For the avoidance of doubt, any reference to the Amended EQM Credit Facility as of any particular date shall mean the Amended EQM Credit Facility as in effect on such date. The Amendment, among other things, extended the stated maturity date, with such extension only applicable for the lenders approving the Amendment, from October 31, 2023 (the Earlier Maturity Date) to April 30, 2025 (the Later Maturity Date).

As of September 30, 2022, the Company had aggregate commitments available under the Amended EQM Credit Facility of approximately $2.16 billion before the Earlier Maturity Date, with approximately $1.55 billion in aggregate commitments available on and after the Earlier Maturity Date and prior to the Later Maturity Date. As of September 30, 2022, EQM had approximately $100 million of borrowings and $234.9 million of letters of credit outstanding under the Amended EQM Credit Facility. As of December 31, 2021, EQM had approximately $225 million of borrowings and $234.9 million of letters of credit outstanding under the Amended EQM Credit Facility. During the three and nine months ended September 30, 2022, the maximum outstanding borrowings at any time were approximately $190 million and $280 million, respectively, and the average daily balances were approximately $143 million and $176 million, respectively. EQM incurred interest at weighted average annual interest rates of approximately 4.8% and 3.8% for the three and nine months ended September 30, 2022, respectively. During the three and nine months ended September 30, 2021, the maximum outstanding borrowings at any time were approximately $390 million and $525 million, respectively, and the average daily balances were approximately $358 million and $440 million, respectively. EQM incurred interest at weighted average annual interest rates of approximately 2.7% and 2.6% for the three and nine months ended September 30, 2021, respectively. For the three and nine months ended September 30, 2022, commitment fees of $2.3 million and $6.1 million were paid to maintain credit availability under the

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Amended EQM Credit Facility. For the three and nine months ended September 30, 2021, commitment fees of $1.7 million and $5.6 million were paid to maintain credit availability under the Amended EQM Credit Facility. As of September 30, 2022, no term loans were outstanding under the Amended EQM Credit Facility.

Amended 2019 EQM Term Loan Agreement. On January 8, 2021, EQM (i) applied a portion of the proceeds from the issuance of the 2021 Senior Notes (as defined below) to prepay all principal, interest, fees and other obligations outstanding under the Amended 2019 EQM Term Loan Agreement and (ii) terminated the Amended 2019 EQM Term Loan Agreement and the loan documents associated therewith. EQM repaid outstanding term loans (the EQM Term Loans) with a principal amount of $1.4 billion in connection with the termination of the Amended 2019 EQM Term Loan Agreement. Prior to its termination in January 2021, the Amended 2019 EQM Term Loan Agreement would have matured in August 2022. During the period from January 1, 2021 through January 7, 2021, the weighted average annual interest rate was approximately 2.4%.

Eureka Credit Facilities. On May 13, 2021, Eureka Midstream, LLC (Eureka), a wholly owned subsidiary of Eureka Midstream, repaid all outstanding principal borrowings plus accrued and unpaid interest under and terminated its credit facility with ABN AMRO Capital USA LLC, as administrative agent, the lenders party thereto from time to time and any other persons party thereto from time to time (the Former Eureka Credit Facility). In conjunction with the termination of, and to fund the repayment of all outstanding amounts under the Former Eureka Credit Facility, on May 13, 2021, Eureka entered into a $400 million senior secured revolving credit facility with Sumitomo Mitsui Banking Corporation, as administrative agent, the lenders party thereto from time to time and any other persons party thereto from time to time (the 2021 Eureka Credit Facility).

As of September 30, 2022, and December 31, 2021, Eureka had approximately $295 million and $280 million, respectively, of borrowings outstanding under the 2021 Eureka Credit Facility. For the three and nine months ended September 30, 2022, the maximum amount of outstanding borrowings under the 2021 Eureka Credit Facility at any time was approximately $295 million and the average daily balance was approximately $290 million and $296 million, respectively, and Eureka incurred interest at weighted average annual interest rates of approximately 4.8% and 4.3%, respectively. For the three and nine months ended September 30, 2022, commitment fees of $0.1 million and $0.4 million, respectively, were paid to maintain credit availability under the 2021 Eureka Credit Facility. For the three and nine months ended September 30, 2021, the maximum amount of outstanding borrowings under the Former Eureka Credit Facility and 2021 Eureka Credit Facility at any time was approximately $300 million and $315 million, respectively, the average daily balance was approximately $299 million and $305 million, respectively, and Eureka incurred interest at weighted average annual interest rates of approximately 2.8% and 2.5%, respectively. For the three and nine months ended September 30, 2021, commitment fees of $0.1 million and $0.3 million, respectively, were paid to maintain credit availability under the Former Eureka Credit Facility and 2021 Eureka Credit Facility, as applicable.

2022 Senior Notes. On June 7, 2022, EQM completed a private offering of $500 million aggregate principal amount of new 7.50% senior notes due 2027 (the 2027 Notes) and $500 million aggregate principal amount of new 7.50% senior notes due 2030 (the 2030 Notes and, together with the 2027 Notes, the 2022 Senior Notes) and received net proceeds from the offering of approximately $984.5 million inclusive of a discount of approximately $12.5 million and debt issuance costs of approximately $3.0 million.

The 2022 Senior Notes were issued under and are governed by an indenture, dated June 7, 2022 (the 2022 Indenture), between EQM and U.S. Bank Trust Company, National Association, as trustee. The 2022 Indenture contains covenants that limit EQM’s ability to, among other things, incur certain liens securing indebtedness, engage in certain sale and leaseback transactions, and enter into certain consolidations, mergers, conveyances, transfers or leases of all or substantially all of EQM’s assets. The 2027 Notes will mature on June 1, 2027 and interest on the 2027 Notes is payable semi-annually on June 1 and December 1 of each year, commencing December 1, 2022. The 2030 Notes will mature on June 1, 2030 and interest on the 2030 Notes is payable semi-annually on June 1 and December 1 of each year, commencing December 1, 2022.

The 2022 Senior Notes are unsecured and rank equally with all of EQM’s existing and future senior obligations. The 2022 Senior Notes are senior in right of payment to any of EQM’s future obligations that are, by their terms, expressly subordinated in right of payment to the 2022 Senior Notes. The 2022 Senior Notes are effectively subordinated to EQM’s secured obligations, if any, to the extent of the value of the collateral securing such obligations, and structurally subordinated to all indebtedness and obligations, including trade payables, of EQM’s subsidiaries, other than any subsidiaries that may guarantee the 2022 Senior Notes in the future.

EQM may, at its option, redeem some or all of the 2027 Notes and the 2030 Notes, in whole or in part, at any time prior to their maturity at the applicable redemption price as set forth in the 2022 Indenture.

Upon the occurrence of a Change of Control Triggering Event (as defined in the 2022 Indenture), EQM may be required to offer to purchase the 2022 Senior Notes at a purchase price equal to 101% of the aggregate principal amount of the 2022 Senior Notes repurchased, plus accrued and unpaid interest, if any, to, but excluding, the repurchase date.

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The 2022 Indenture contains certain events of default, including the following: (1) default in the payment of interest on such 2022 Senior Notes when due that continues for 30 days; (2) default in the payment of principal of or premium, if any, on any such 2022 Senior Notes when due, whether at its stated maturity, upon redemption or otherwise; (3) failure by EQM or any subsidiary guarantor, if any, to comply for 90 days with the other agreements with respect to such 2022 Senior Notes contained in the 2022 Indenture after written notice by the trustee or by the holders of at least 25% in principal amount of the outstanding 2022 Senior Notes of such series; (4) certain events of bankruptcy, insolvency or reorganization of EQM or any subsidiary guarantor, if any, that is one of EQM’s Significant Subsidiaries (as defined in the 2022 Indenture); and (5) if such 2022 Senior Notes are guaranteed by a subsidiary guarantor that is one of EQM’s Significant Subsidiaries, (a) the guarantee of that subsidiary guarantor ceases to be in full force and effect, except as otherwise provided in the 2022 Indenture; (b) the guarantee of that subsidiary guarantor is declared null and void in a judicial proceeding; or (c) that subsidiary guarantor denies or disaffirms its obligations under the 2022 Indenture or its guarantee.

If an event of default occurs and is continuing, the trustee or the holders of at least 25% in aggregate principal amount of the then outstanding 2022 Senior Notes of such series may declare the 2022 Senior Notes of such series to be due and payable. Upon such a declaration, such principal, premium, if any, and accrued and unpaid interest on such 2022 Senior Notes will be due and payable immediately. If an event of default relating to certain events of bankruptcy, insolvency or reorganization occurs, all outstanding 2022 Senior Notes will become due and payable immediately without further action or notice on the part of the trustee or any holders of the 2022 Senior Notes.

EQM used the net proceeds from the offering of the 2022 Senior Notes and cash on hand to purchase (i) an aggregate principal amount of approximately $501.1 million of its outstanding 4.75% notes due 2023 (2023 Notes) pursuant to a tender offer for any and all of the outstanding 2023 Notes (the Any and All Tender Offer) and an open market purchase following the expiration of the Any and All Tender Offer, and (ii) an aggregate principal amount of $300 million of its outstanding 6.00% notes due 2025 (2025 Notes), and an aggregate principal amount of $200 million of its outstanding 4.00% notes due 2024 (2024 Notes), pursuant to tender offers (the Maximum Tender Offers, together with the Any and All Tender Offer, the 2022 Tender Offers) for the 2025 Notes and 2024 Notes, which such Maximum Tender Offers reflected a maximum aggregate principal amount of 2025 Notes and 2024 Notes to be purchased of $500 million (such amount, the Aggregate Maximum Principal Amount).

2022 Tender Offers. On June 6, 2022, the Any and All Tender Offer expired and, on June 7, 2022 and June 9, 2022, EQM purchased an aggregate principal amount of approximately $496.8 million of 2023 Notes at an aggregate cost of approximately $506.7 million pursuant to the Any and All Tender Offer. On June 10, 2022, which was after the closing of the Any and All Tender Offer, EQM also repurchased an aggregate principal amount of approximately $4.3 million of 2023 Notes in the open market at an aggregate cost of approximately $4.4 million. On June 13, 2022, which was the early tender deadline for the Maximum Tender Offers, the Aggregate Maximum Principal Amount was fully subscribed by the 2024 Notes and 2025 Notes then tendered, and, on June 14, 2022, EQM purchased an aggregate principal amount of $200 million of 2024 Notes and $300 million of 2025 Notes at an aggregate cost of approximately $509 million (inclusive of the applicable early tender premium for the 2024 Notes and 2025 Notes described in that certain Offer to Purchase of EQM dated May 31, 2022, as amended).

The Company incurred a loss on the extinguishment of debt of approximately $24.9 million during the nine months ended September 30, 2022 related to the payment of the 2022 Tender Offers and open market repurchase premiums and fees, and write off of the respective unamortized discounts and financing costs associated with the purchase of portions of 2023, 2024 and 2025 Notes in the 2022 Tender Offers. This amount is included in the loss on extinguishment of debt line on the statements of consolidated comprehensive income.

2021 Senior Notes. During the first quarter of 2021, EQM issued, in a private offering, $800 million aggregate principal amount of new 4.50% senior notes due 2029 (the 2029 Notes) and $1,100 million aggregate principal amount of new 4.75% senior notes due 2031 (the 2031 Notes and, together with the 2029 Notes, the 2021 Senior Notes) and received net proceeds from the offering of approximately $1,876.5 million (excluding costs related to the 2021 Tender Offers discussed below), inclusive of a discount of $19 million and debt issuance costs of $4.5 million. EQM used the net proceeds from the offering of the 2021 Senior Notes and cash on hand to repay all outstanding borrowings under the Amended 2019 EQM Term Loan Agreement, to purchase an aggregate principal amount of $500 million of its then outstanding 2023 Notes pursuant to tender offers for certain of EQM's outstanding indebtedness (such tender offers, the 2021 Tender Offers), and for general partnership purposes.

2021 Tender Offers. On January 15, 2021 (the 2021 early tender deadline), the maximum principal amount for the 2021 Tender Offers was fully subscribed by the 2023 Notes tendered as of the 2021 early tender deadline and on January 20, 2021, EQM purchased an aggregate principal amount of $500 million of 2023 Notes at an aggregate cost of approximately $537 million (inclusive of the applicable early tender premium for the 2023 Notes described in that certain Offer to Purchase of EQM dated January 4, 2021, as amended, plus accrued interest).

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The Company incurred a loss on the extinguishment of debt of $41.0 million during the nine months ended September 30, 2021 related to the payment of the 2021 Tender Offers premium and write off of unamortized discounts and financing costs related to the prepayment of the EQM Term Loans under, and termination of, the Amended 2019 EQM Term Loan Agreement and purchase of 2023 Notes in the 2021 Tender Offers. This amount is included in the loss on extinguishment of debt line on the statements of consolidated comprehensive income.

As of September 30, 2022, EQM and Eureka were in compliance with all debt provisions and covenants.

8.    Fair Value Measurements

Assets Measured at Fair Value on a Recurring Basis. The Company records derivative instruments at fair value on a gross basis in its consolidated balance sheets. The EQT Global GGA provides for potential cash bonus payments payable by EQT to the Company during the period beginning on the first day of the calendar quarter in which the MVP full in-service date occurs through the calendar quarter ending December 31, 2024 (the Henry Hub cash bonus payment provision). The potential cash bonus payments are conditioned upon the quarterly average of certain Henry Hub natural gas prices exceeding certain price thresholds. The Henry Hub cash bonus payment provision is accounted for as a derivative instrument and recorded at its estimated fair value using a Monte Carlo simulation model. Significant inputs used in the fair value measurement include NYMEX Henry Hub natural gas futures prices as of the date of valuation, the targeted in-service date for the MVP, risk-free interest rates based on U.S. Treasury rates, expected volatility of NYMEX Henry Hub natural gas futures prices and an estimated credit spread of EQT. The targeted full in-service date for the MVP project and the expected volatility of NYMEX Henry Hub natural gas futures prices used in the valuation methodology represent significant unobservable inputs causing the Henry Hub cash bonus payment provision to be designated as a Level 3 fair value measurement. An expected average volatility of approximately 60% was utilized in the valuation model, which is based on market-quoted volatilities of relevant NYMEX Henry Hub natural gas forward prices.

As of September 30, 2022 and December 31, 2021, the fair values of the Henry Hub cash bonus payment provision were $69.4 million and $51.6 million, respectively, which were recorded in other assets on the Company's consolidated balance sheets. During the three and nine months ended September 30, 2022, the Company recognized a loss of $2.4 million and a gain of $17.8 million, respectively, representing the change in estimated fair value of the derivative instrument during the respective periods. During the three and nine months ended September 30, 2021, the Company recognized gains of $21.3 million and $37.9 million, respectively, representing the change in estimated fair value of the derivative instrument during the respective periods. The (loss) gains are reflected in other income, net in the Company's statements of consolidated comprehensive income.

Other Financial Instruments. The carrying values of cash and cash equivalents, accounts receivable and accounts payable approximate fair value due to the short maturity of the instruments; as such, their fair values are Level 1 fair value measurements. The carrying values of borrowings under the Amended EQM Credit Facility, the Former Eureka Credit Facility (prior to its termination), the 2021 Eureka Credit Facility and the Amended 2019 EQM Term Loan Agreement (prior to its termination) approximate fair value as the interest rates are based on prevailing market rates; these are considered Level 1 fair value measurements. As EQM's borrowings under its senior notes are not actively traded, their fair values are estimated using an income approach model that applies a discount rate based on prevailing market rates for debt with similar remaining time-to-maturity and credit risk; as such, their fair values are Level 2 fair value measurements. As of September 30, 2022, and December 31, 2021, the estimated fair values of EQM's senior notes were approximately $5,666.7 million and $7,060.5 million, respectively, and the carrying values of EQM's senior notes were approximately $6,431.3 million and $6,434.9 million, respectively. The fair value of the Preferred Interest is based on significant inputs that are not observable in the market and, as such, is a Level 3 fair value measurement and is estimated using an income approach model that applies a market-based discount rate. As of September 30, 2022, and December 31, 2021, the estimated fair values of the Preferred Interest were approximately $95.5 million and $117.0 million, respectively, and the carrying values of the Preferred Interest were approximately $95.7 million and $100.0 million, respectively. As of September 30, 2022, the carrying value of the Preferred Interest exceeded its estimated fair value, which was considered temporary and not material.

9.    Earnings Per Share

The Company excluded 30,862 and 30,800 (in thousands) of weighted average anti-dilutive securities related to the Equitrans Midstream Preferred Shares and stock-based compensation awards from the computation of diluted weighted average common shares outstanding for the three and nine months ended September 30, 2022, respectively. The Company excluded 30,018 (in thousands), in each case, of weighted average anti-dilutive securities related to the Equitrans Midstream Preferred Shares from the computation of diluted weighted average common shares outstanding for the three and nine months ended September 30, 2021.

The Company grants Equitrans Midstream phantom units to certain non-employee directors that will be paid in Equitrans Midstream common stock upon the director's termination of service on the Board. As there are no remaining service,

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performance or market conditions related to these awards, 567 and 599 (in thousands) Equitrans Midstream phantom units were included in the computation of basic and diluted weighted average common shares outstanding for the three and nine months ended September 30, 2022, respectively, and 498 and 495 (in thousands) Equitrans Midstream phantom units were included in the computation of basic and diluted weighted average common shares outstanding for the three and nine months ended September 30, 2021, respectively.

10.     Income Taxes

The Company's effective tax rate was 0.3% for the three months ended September 30, 2022, compared to 26.2% for the three months ended September 30, 2021. The Company's effective tax rate was (2.7)% for the nine months ended September 30, 2022, compared to 23.9% for the nine months ended September 30, 2021. For the three and nine months ended September 30, 2022 and 2021, the Company calculated the provision for income taxes for interim periods by applying an estimate of the annual effective tax rate for the full fiscal year to "ordinary" income or loss (income (loss) before income taxes excluding unusual or infrequently occurring items) for the periods. The effective tax rate was lower for the three and nine months ended September 30, 2022 compared to the three and nine months ended September 30, 2021 primarily due to the impairment of the Company's equity method investment in the MVP Joint Venture and its impact on the loss before income taxes, partially offset by an increase in the valuation allowances that limit tax benefits for the Company's federal and state deferred tax assets, which were recorded by the Company at December 31, 2021. The effective tax rate for the three and nine months ended September 30, 2022 was lower than the statutory rate primarily due to the increase in the valuation allowances that limit tax benefits for the Company’s federal and state deferred tax assets, primarily due to the impairment of the Company's equity method investment in the MVP Joint Venture and its impact on the loss before income taxes. The effective tax rate for the three and nine months ended September 30, 2021 was lower than the statutory rate primarily due to the impact of AFUDC - equity on the MVP project.

For the nine months ended September 30, 2022, the Company believes that it is more likely than not that the benefit from a portion of its state net operating loss (NOL) carryforwards, deferred tax assets related to interest disallowance under Internal Revenue Code Section 163(j), and certain state deferred tax assets, net of offsetting deferred tax liabilities, will not be realized and accordingly, the Company maintains related valuation allowances. For the nine months ended September 30, 2022, the Company recorded income tax expense of approximately $54.5 million primarily related to changes in valuation allowances of approximately $77.4 million because of increases in federal and state deferred tax assets, partially offset by a $22.9 million benefit related to decreases in future Pennsylvania corporate net income tax rates. As of September 30, 2022 and December 31, 2021, the valuation allowances related to federal and state deferred tax assets were approximately $152.1 million and $97.6 million, respectively.

Valuation allowances are recorded to reduce deferred tax assets when it is more likely than not (greater than 50%) that a tax benefit will not be realized. In evaluating the need for a valuation allowance, management considers available evidence, both positive and negative, including potential sources of taxable income, income available in carry-back periods, future reversals of taxable temporary differences, projections of taxable income and income from tax planning strategies. Positive evidence includes reversing temporary differences and projection of future profitability within the carry-forward period, including from tax planning strategies. Negative evidence includes historical pre-tax book losses and Pennsylvania NOL expirations. A review of positive and negative evidence regarding these tax benefits resulted in the conclusion that valuation allowances on a portion of the Company’s state NOL carryforwards, deferred tax assets related to interest disallowance under Internal Revenue Code Section 163(j), and certain state deferred tax assets, net of offsetting deferred tax liabilities, were warranted as it was more likely than not that these assets will not be realized. Any determination to change the beginning of the year valuation allowance resulting from a change in the judgment about realizability of deferred tax assets in future years would impact the Company's income tax expense in the period in which such a determination is made.

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EQUITRANS MIDSTREAM CORPORATION

Item 2.  Management's Discussion and Analysis of Financial Condition and Results of Operations

You should read the following discussion and analysis of financial condition and results of operations in conjunction with the consolidated financial statements, and the notes thereto, included elsewhere in this report.

Cautionary Statements about Forward-Looking Statements

Disclosures in this Quarterly Report on Form 10-Q contain certain forward-looking statements within the meaning of Section 21E of the Securities Exchange Act of 1934, as amended (the Exchange Act), and Section 27A of the Securities Act of 1933, as amended (the Securities Act). Statements that do not relate strictly to historical or current facts are forward-looking and usually identified by the use of words such as "anticipate," "estimate," "could," "would," "will," "may," "assume," "potential," "forecast," "approximate," "expect," "project," "intend," "plan," "believe," "target," "outlook," "seek," "strive," "continue" and other words of similar meaning in connection with any discussion of future operating or financial matters. Without limiting the generality of the foregoing, forward-looking statements contained in this Quarterly Report on Form 10-Q include the matters discussed in the section captioned "Outlook" in Part I, "Item 2. Management's Discussion and Analysis of Financial Condition and Results of Operations," and the expectations of plans, strategies, objectives, and growth and anticipated financial and operational performance of Equitrans Midstream Corporation (together with its subsidiaries, Equitrans Midstream or the Company), including:

•guidance and any changes in such guidance regarding the Company’s gathering, transmission and storage and water services revenue and volume, including the anticipated effects associated with the EQT Global GGA and related documents entered into with EQT;

•projected revenue (including from firm reservation fees) and volumes, gathering rates, deferred revenues, expenses and contract liabilities, and the effects on liquidity, leverage, projected revenue, deferred revenue and contract liabilities associated with the EQT Global GGA and the MVP project (including changes in the targeted full in-service date for such project);

•the ultimate gathering fee relief, and timing thereof, provided to EQT under the EQT Global GGA and related agreements;

•the Company's ability to de-lever and timing thereof;

•the weighted average contract life of gathering, transmission and storage contracts;

•infrastructure programs (including the timing, cost, capacity and sources of funding with respect to gathering, transmission and storage and water projects);

•the cost to construct or restore right-of-way for, capacity of, shippers for, timing and durability of regulatory approvals and concluding litigation, final design (including project scope, expansions, extensions or refinements and capital related thereto), ability to contract additional capacity on, mitigate emissions from, targeted in-service dates of, and completion of current, planned or in-service projects or assets, in each case as applicable;

•the potential for federal energy infrastructure permitting reform legislation favorable to the MVP project to be expeditiously proposed and enacted;

•the ultimate terms, partner relationships and structure of the MVP Joint Venture and ownership interests therein;

•the impact of changes in the targeted full in-service date of the MVP project on, among other things, the fair value of the Henry Hub cash bonus payment provision of the EQT Global GGA, gathering fee relief and the estimated transaction price allocated to the Company's remaining performance obligations under certain contracts with firm reservation fees and MVCs;

•expansion projects in the Company's operating areas and in areas that would provide access to new markets;

•the Company's ability to provide produced and mixed water handling services and realize expansion opportunities;

•the Company's ability to identify and complete acquisitions and other strategic transactions, including joint ventures, effectively integrate transactions into the Company's operations, and achieve synergies, system optionality, accretion and other benefits associated with transactions, including through increased scale;

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•any credit rating impacts associated with the MVP project, customer credit ratings changes, defaults, acquisitions, dispositions and financings and any changes in EQM's credit ratings;

•the effect and outcome of contractual disputes, litigation and other proceedings, including regulatory proceedings;

•the effects of any consolidation of or effected by upstream gas producers, whether in or outside of the Appalachian Basin;

•the timing and amount of future issuances or repurchases of the Company's securities;

•the effects of conversion, if at all, of the Equitrans Midstream Preferred Shares (as defined herein);

•the effects of seasonality;

•expected cash flows and MVCs, including those associated with the EQT Global GGA, and the potential impacts thereon of the commission timing and cost of the MVP project;

•the ability to achieve, and time for achieving, Hammerhead pipeline full commercial in-service;

•projected capital contributions and capital and operating expenditures, including the amount and timing of reimbursable capital expenditures, capital budget and sources of funds for capital expenditures;

•the Company's ability to recoup replacement and related costs;

•dividend amounts, timing and rates;

•changes in commodity prices and the effect of commodity prices on the Company's business;

•future decisions of customers in respect of production growth, curtailing natural gas production, timing of turning wells in line, rig and completion activity and related impacts on the Company's business;

•liquidity and financing requirements, including sources and availability;

•interest rates;

•the ability of the Company's subsidiaries (some of which are not wholly owned) to service debt under, and comply with the covenants contained in, their respective credit agreements;

•expectations regarding natural gas and water volumes in the Company's areas of operations;

•the Company's ability to achieve anticipated benefits associated with the execution of the EQT Global GGA and other commercial agreements;

•the impact on the Company and its subsidiaries of the coronavirus disease 2019 (COVID-19) pandemic;

•the Company's ability to position itself for a lower carbon economy, achieve, and create value from, its environmental, social and governance (ESG) and sustainability targets and aspirations (including targets and aspirations set forth in its climate policy) and respond, and impacts of responding, to increasing stakeholder scrutiny in these areas;

•the effectiveness of the Company's information technology and operational technology systems and practices to detect and defend against evolving cyberattacks on United States critical infrastructure;

•the effects of government regulation including any quantification of potential impacts of regulatory matters related to climate change on the Company; and

•tax rates, status and position.

The forward-looking statements included in this Quarterly Report on Form 10-Q involve risks and uncertainties that could cause actual results to differ materially from projected results. Accordingly, investors should not place undue reliance on forward-looking statements as a prediction of actual results. The Company has based these forward-looking statements on management's current expectations and assumptions about future events. While the Company considers these expectations and assumptions to be reasonable, they are inherently subject to significant business, economic, competitive, regulatory, judicial and other risks and uncertainties, many of which are difficult to predict and are beyond the Company's control. The risks and uncertainties that may affect the operations, performance and results of the Company's business and forward-looking statements

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include, but are not limited to, those set forth under "Item 1A. Risk Factors" in the Company's Annual Report on Form 10-K for the year ended December 31, 2021, as updated by this Quarterly Report on Form 10-Q.

Any forward-looking statement speaks only as of the date on which such statement is made and the Company does not intend to correct or update any forward-looking statement, unless required by securities law, whether as a result of new information, future events or otherwise.

Executive Overview

Net loss attributable to Equitrans Midstream common shareholders was $(521.2) million ($(1.20) per diluted share) for the three months ended September 30, 2022 compared to net income attributable to Equitrans Midstream common shareholders of $72.7 million ($0.17 per diluted share) for the three months ended September 30, 2021. The decrease resulted primarily from an impairment of the Company's equity method investment in the MVP Joint Venture, lower other income, net, decreased operating revenues, lower equity income and higher interest expense, partially offset by lower income tax expense.

Net loss attributable to Equitrans Midstream common shareholders was $(379.4) million ($(0.88) per diluted share) for the nine months ended September 30, 2022 compared to net income attributable to Equitrans Midstream common shareholders of $153.3 million ($0.35 per diluted share) for the nine months ended September 30, 2021. The decrease resulted primarily from an impairment of the Company's equity method investment in the MVP Joint Venture, lower operating revenues, lower other income, net and a decrease in equity income, partially offset by lower operating expenses, lower income tax expense and a decrease in the loss on extinguishment of debt.

COVID-19 Update

The Company continues to monitor updates in guidelines from the U.S. Centers for Disease Control and Prevention related to the COVID-19 outbreak, and, where applicable, make adjustments to its companywide working protocols. Although the outbreak has had, and continues to have, minimal direct impact on the Company’s overall operations, the Company cannot predict that the pandemic, or further developments regarding variants of COVID-19 or related governmental action, will not have any impact in the future on the Company's business, results of operations or financial position. For further information regarding the potential impact of COVID-19 on the Company, see "The ongoing outbreak of COVID-19 and its variant strains (or any future pandemic) could harm our business, results of operations and financial condition." under "Item 1A. Risk Factors" in the Company’s Annual Report on Form 10-K for the year ended December 31, 2021.

Business Segment Results

Operating segments are revenue-producing components of an enterprise for which separate financial information is produced internally and is subject to evaluation by the chief operating decision maker in deciding how to allocate resources. Headquarters costs consist primarily of certain unallocated corporate expenses and transaction costs, as applicable. Net interest expense, loss on extinguishment of debt, components of other income, net and income tax expense (benefit) are managed on a consolidated basis. The Company has presented each segment's operating income (loss), other income, net, equity income, impairment of equity method investment and various operational measures, as applicable, in the following sections. Management believes that the presentation of this information is useful to management and investors regarding the financial condition, results of operations and trends and uncertainties of its segments. The Company has reconciled each segment's operating income (loss) to the Company's consolidated operating income and net income (loss) in Note 3 to the consolidated financial statements.

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Gathering Results of Operations

	Three Months Ended September 30,					Nine Months Ended September 30,
	2022		2021		% Change	2022		2021		% Change
	(Thousands, except per day amounts)
FINANCIAL DATA
Firm reservation fee revenues (a)	$	144,730	$	151,004	(4.2)	$	415,932	$	448,556	(7.3)
Volumetric-based fee revenues	82,450		92,812		(11.2)	256,352		285,288		(10.1)
Total operating revenues	227,180		243,816		(6.8)	672,284		733,844		(8.4)
Operating expenses:
Operating and maintenance	27,855		25,758		8.1	71,733		72,698		(1.3)
Selling, general and administrative	21,717		21,831		(0.5)	58,520		72,324		(19.1)
Depreciation	49,125		47,441		3.5	145,953		140,899		3.6
Amortization of intangible assets	16,204		16,204		—	48,614		48,614		—
Total operating expenses	114,901		111,234		3.3	324,820		334,535		(2.9)
Operating income	$	112,279	$	132,582	(15.3)	$	347,464	$	399,309	(13.0)
Other income, net (b)	$	1,332	$	21,328	(93.8)	$	21,500	$	37,897	(43.3)
OPERATIONAL DATA
Gathered volumes (BBtu per day)
Firm capacity (c)	5,125		5,110		0.3	5,199		5,211		(0.2)
Volumetric-based services	2,413		2,880		(16.2)	2,600		3,109		(16.4)
Total gathered volumes	7,538		7,990		(5.7)	7,799		8,320		(6.3)
Capital expenditures (d)	$	73,589	$	62,916	17.0	$	195,925	$	170,709	14.8

(a)For the three and nine months ended September 30, 2022, firm reservation fee revenues included approximately $8.5 million and $17.4 million, respectively, of MVC unbilled revenues. For the three and nine months ended September 30, 2021, firm reservation fee revenues included approximately $5.5 million and $12.4 million, respectively, of MVC unbilled revenues.

(b)Other income, net includes the unrealized (losses) gains on derivative instruments associated with the Henry Hub cash bonus payment provision and gain on sale of gathering assets. See Note 8 to the consolidated financial statements for further details on the Henry Hub cash bonus payment provision.

(c)Includes volumes up to the contractual MVC under agreements structured with MVCs. Volumes in excess of the contractual MVC are reported under Volumetric-based services.

(d)Includes approximately $5.9 million and $17.6 million of capital expenditures related to the noncontrolling interest in Eureka Midstream for the three and nine months ended September 30, 2022, respectively, and includes approximately $4.8 million and $10.6 million of capital expenditures related to the noncontrolling interest in Eureka Midstream for the three and nine months ended September 30, 2021, respectively.

Three Months Ended September 30, 2022 Compared to Three Months Ended September 30, 2021

Gathering operating revenues decreased by $16.6 million for the three months ended September 30, 2022 compared to the three months ended September 30, 2021. Firm reservation fee revenues decreased by $6.3 million primarily due to higher deferred revenue primarily resulting from assumption changes impacting the estimated total consideration under the EQT Global GGA partially offset by increased firm reservation revenues from other customers. Volumetric-based fee revenues decreased by $10.3 million primarily due to lower gathered volumes resulting from reduced producer activity.

Gathering operating expenses increased by $3.7 million for the three months ended September 30, 2022 compared to the three months ended September 30, 2021. Operating and maintenance expenses increased by $2.1 million primarily due to higher property taxes. Depreciation expense increased by $1.7 million as a result of additional assets placed in-service.

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Nine Months Ended September 30, 2022 Compared to Nine Months Ended September 30, 2021

Gathering operating revenues decreased by $61.6 million for the nine months ended September 30, 2022 compared to the nine months ended September 30, 2021. Firm reservation fee revenues decreased by $32.6 million primarily due to higher deferred revenue primarily resulting from assumption changes impacting the estimated total consideration under the EQT Global GGA, partially offset by increased firm reservation revenues from other customers. Volumetric-based fee revenues decreased by $28.9 million primarily due to lower gathered volumes resulting from reduced producer activity.

Gathering operating expenses decreased by $9.7 million for the nine months ended September 30, 2022 compared to the nine months ended September 30, 2021. Selling, general and administrative expenses decreased by $13.8 million primarily due to legal fees associated with the Hammerhead pipeline arbitration during the nine months ended September 30, 2021 and lower personnel costs. The decrease in selling, general and administrative expenses was partially offset by an increase in depreciation expense of $5.1 million as a result of additional assets placed in-service.

See also “Outlook” for discussions of the EQT Global GGA and the transactions related thereto, including the potential gathering fee relief to EQT thereunder. The Company expects that the revenues resulting from the MVCs under the EQT Global GGA will increase the proportion of the Company's total operating revenues that are firm reservation fee revenues, and correspondingly decrease the portion of the Company's total operating revenues that are volumetric-based fee revenues, in future periods. Firm reservation fee revenues under the Company’s Hammerhead gathering agreement with EQT also are expected to contribute to an increase in the Company’s firm reservation fee revenues following achievement of the Hammerhead pipeline full commercial in-service. See also "Outlook" for discussions of the expected timing of the Hammerhead pipeline in service.

Transmission Results of Operations

	Three Months Ended September 30,					Nine Months Ended September 30,
	2022		2021		% Change	2022		2021		% Change
	(Thousands, except per day amounts)
FINANCIAL DATA
Firm reservation fee revenues	$	84,584	$	84,053	0.6	$	272,129	$	269,239	1.1
Volumetric-based fee revenues	6,973		6,833		2.0	21,301		25,964		(18.0)
Total operating revenues	91,557		90,886		0.7	293,430		295,203		(0.6)
Operating expenses:
Operating and maintenance	4,143		7,922		(47.7)	15,973		23,682		(32.6)
Selling, general and administrative	9,428		9,426		—	26,270		26,907		(2.4)
Depreciation	13,909		13,835		0.5	41,707		41,461		0.6
Total operating expenses	27,480		31,183		(11.9)	83,950		92,050		(8.8)
Operating income	$	64,077	$	59,703	7.3	$	209,480	$	203,153	3.1
Equity income	$	48	$	8,461	(99.4)	$	91	$	14,385	(99.4)
Impairment of equity method investment	$	(583,057)	$	—	100.0	$	(583,057)	$	—	100.0
OPERATIONAL DATA
Transmission pipeline throughput (BBtu per day)
Firm capacity reservation	3,058		2,939		4.0	3,082		2,927		5.3
Volumetric-based services	65		7		828.6	41		9		355.6
Total transmission pipeline throughput	3,123		2,946		6.0	3,123		2,936		6.4
Average contracted firm transmission reservation commitments (BBtu per day)	3,748		3,819		(1.9)	4,009		4,008		—
Capital expenditures (a)	$	12,429	$	5,755	116.0	$	22,994	$	17,050	34.9

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(a)Transmission capital expenditures do not include aggregate capital contributions made to the MVP Joint Venture for the MVP and MVP Southgate projects of approximately $46.4 million and $158.2 million for the three and nine months ended September 30, 2022, respectively, and $94.3 million and $179.0 million for the three and nine months ended September 30, 2021, respectively.

Three Months Ended September 30, 2022 Compared to Three Months Ended September 30, 2021

Transmission operating revenues increased by $0.7 million for the three months ended September 30, 2022 compared to the three months ended September 30, 2021 primarily as a result of increased firm reservation fee revenues primarily due to higher average rates.

Operating expenses decreased by $3.7 million for the three months ended September 30, 2022, compared to the three months ended September 30, 2021 as a result of decreased operating and maintenance expense primarily due to operational efficiencies.

Equity income decreased by $8.4 million for the three months ended September 30, 2022 compared to the three months ended September 30, 2021 due to no AFUDC at the MVP Joint Venture in the current period.

Impairment of equity method investment reflects the impairment of the Company's equity method investment in the MVP Joint Venture during the third quarter of 2022. See Note 2 for further information.

Nine Months Ended September 30, 2022 Compared to Nine Months Ended September 30, 2021

Transmission operating revenues decreased by $1.8 million for the nine months ended September 30, 2022 compared to the nine months ended September 30, 2021. Firm reservation revenues increased $2.9 million due to higher average rates and customers contracting for additional firm capacity. Volumetric-based fee revenues decreased $4.7 million due to lower storage activities.

Operating expenses decreased by $8.1 million for the nine months ended September 30, 2022 compared to the nine months ended September 30, 2021 primarily as a result of lower operating and maintenance expense due to operational efficiencies.

Equity income decreased by $14.3 million for the nine months ended September 30, 2022 compared to the nine months ended September 30, 2021 due to no AFUDC at the MVP Joint Venture in the current period.

The Company's equity income in future periods will continue to be affected by the timing of the resumption of the remaining MVP project growth construction activities and associated AFUDC, and the timing of the completion of the MVP project, and such impact could continue to be substantial.

Impairment of equity method investment reflects the impairment of the Company's equity method investment in the MVP Joint Venture during the third quarter of 2022. See Note 2 for further information.

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Water Results of Operations

	Three Months Ended September 30,					Nine Months Ended September 30,
	2022		2021		% Change	2022		2021		% Change
	(Thousands, except MMgal amounts)
FINANCIAL DATA
Firm reservation fee revenues (a)	$	9,375	$	1,061	783.6	$	24,502	$	3,834	539.1
Volumetric-based fee revenues	3,639		6,311		(42.3)	12,292		37,484		(67.2)
Total operating revenues	13,014		7,372		76.5	36,794		41,318		(10.9)
Operating expenses:
Operating and maintenance	3,280		5,053		(35.1)	12,809		14,581		(12.2)
Selling, general and administrative	2,230		2,369		(5.9)	5,896		5,396		9.3
Depreciation	5,162		4,364		18.3	14,483		20,740		(30.2)
Impairment of long-lived assets	—		—		—	—		56,178		(100.0)
Total operating expenses	10,672		11,786		(9.5)	33,188		96,895		(65.7)
Operating income (loss)	$	2,342	$	(4,414)	153.1	$	3,606	$	(55,577)	106.5
OPERATIONAL DATA
Water services volumes (MMgal)
Firm capacity reservation (b)	107		16		568.8	323		70		361.4
Volumetric-based services	96		161		(40.4)	358		837		(57.2)
Total water volumes	203		177		14.7	681		907		(24.9)
Capital expenditures	$	17,041	$	10,803	57.7	$	49,132	$	20,430	140.5

(a)    For the three and nine months ended September 30, 2021, firm reservation fee revenues included approximately $0.5 million and $1.5 million, respectively, of MVC unbilled revenues.

(b)    Includes volumes up to the contractual MVC under agreements structured with MVCs or ARCs, as applicable. Volumes in excess of the contractual MVC are reported under volumetric-based services.

Three Months Ended September 30, 2022 Compared to Three Months Ended September 30, 2021

Water operating revenues increased by $5.6 million for the three months ended September 30, 2022 compared to the three months ended September 30, 2021. Firm reservation fee revenues increased by $8.3 million primarily as a result of increased revenues associated with ARCs. Volumetric-based fee revenues decreased by $2.7 million primarily due to lower volumes resulting from more firm capacity volumes in the current period due to the 2021 Water Services Agreement replacing contracts that provided service previously on a volumetric fee basis and overall decreased customer activity.

Water operating expenses decreased by $1.1 million for the three months ended September 30, 2022 compared to the three months ended September 30, 2021. Operating and maintenance expenses decreased by $1.8 million primarily due to preventive pipeline activities in the prior year, which was partially offset by an increase in depreciation expense of $0.8 million as a result of additional assets placed in-service.

Nine Months Ended September 30, 2022 Compared to Nine Months Ended September 30, 2021

Water operating revenues decreased by $4.5 million for the nine months ended September 30, 2022 compared to the nine months ended September 30, 2021. Firm reservation fee revenues increased by $20.7 million primarily as a result of increased revenues associated with ARCs. Volumetric-based fee revenues decreased by $25.2 million primarily due to lower volumes resulting from more firm capacity volumes in the current period due to the 2021 Water Services Agreement replacing contracts that provided service previously on a volumetric fee basis and overall decreased customer activity and rates.

Water operating expenses decreased by $63.7 million for the nine months ended September 30, 2022 compared to the nine months ended September 30, 2021 primarily as a result of the $56.2 million impairment of long-lived assets during the second quarter of 2021. Depreciation expense decreased $6.3 million due to the impairment of certain long-lived assets during the

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second quarter of 2021. Operating and maintenance expenses decreased by $1.8 million primarily due to lower purchased water costs resulting from decreased activity.

The Company’s volumetric-based water services are directly associated with producers’ well completion activities and fresh and produced water needs (which are primarily driven by horizontal lateral lengths and the number of completion stages per well). Therefore, the Water volumetric operating results traditionally fluctuate from year-to-year in response to producers’ well completion activities. Firm reservation revenues are expected to be mostly consistent due to the ARC under the 2021 Water Services Agreement that became effective March 1, 2022. The Company expects total Water operating revenues to be higher for the year ending December 31, 2022 as compared to the year ended December 31, 2021 primarily due to the operating revenues from the 2021 Water Services Agreement that became effective on March 1, 2022.

The Company also expects that the contractual revenues resulting from the ARC under the 2021 Water Services Agreement will increase the proportion of the Company's total water operating revenues that are firm reservation fee revenues, and correspondingly decrease the portion of the Company's total water operating revenues that are volumetric-based fee revenues, in future periods. See "Outlook" for further discussion of the 2021 Water Services Agreement.

Other Income Statement Items

Other Income, Net

Other income, net decreased by $20.3 million for the three months ended September 30, 2022 compared to the three months ended September 30, 2021. The decrease was primarily due to a $2.4 million unrealized loss on derivative instruments during the three months ended September 30, 2022, as compared to a $21.3 million unrealized gain on derivative instruments during the three months ended September 30, 2021, both associated with the Henry Hub cash bonus payment provision due to changes in NYMEX Henry Hub natural gas futures prices, partially offset by a $3.7 million gain on the sale of non-core gathering assets. Other income, net decreased by $16.8 million for the nine months ended September 30, 2022 compared to the nine months ended September 30, 2021. The decrease was primarily due to a $20.1 million decrease in unrealized gain on derivative instruments associated with the Henry Hub cash bonus payment provision due to changes in NYMEX Henry Hub natural gas futures prices, partially offset by a $3.7 million gain on the sale of non-core gathering assets.

See also "Outlook" for a discussion of factors affecting the estimated fair value of the derivative asset attributable to the Henry Hub cash bonus payment provision that is recognized in other income, net on the Company's statements of consolidated comprehensive income.

Loss on Extinguishment of Debt

During the nine months ended September 30, 2022, the Company incurred a loss on extinguishment of debt of approximately $24.9 million related to the payment of the 2022 Tender Offers and open market repurchase premiums and fees, and write off of the respective unamortized discounts and financing costs associated with the purchase of portions of 2023, 2024 and 2025 Notes in the 2022 Tender Offers.

During the nine months ended September 30, 2021, the Company incurred a loss on the extinguishment of debt of $41.0 million related to the payment of the 2021 Tender Offers premium and write off of unamortized discounts and financing costs related to the prepayment of the EQM Term Loans under, and termination of, the Amended 2019 EQM Term Loan Agreement and purchase of 2023 Notes in the 2021 Tender Offers. See Note 7 to the consolidated financial statements for additional discussion.

Net Interest Expense

Net interest expense increased by $7.0 million for the three months ended September 30, 2022 compared to the three months ended September 30, 2021 primarily due to the issuance of the 2022 Senior Notes and increased interest rates on the revolving credit facilities, partially offset by the impact of the 2022 Tender Offers. Net interest expense increased by $4.4 million for the nine months ended September 30, 2022 compared to the nine months ended September 30, 2021 primarily due to the issuance of the 2022 Senior Notes, partially offset by the impact of the 2022 Tender Offers.

As a result of the issuance of the 2022 Senior Notes and purchase of portions of 2023, 2024 and 2025 Notes in the 2022 Tender Offers, the Company expects its annual net interest expense to be higher in future periods.

See also Note 7 to the consolidated financial statements for a discussion of certain of the Company's outstanding debt.

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Income Taxes

See Note 10 to the consolidated financial statements for an explanation of the changes in income taxes for the three and nine months ended September 30, 2022 compared to the three and nine months ended September 30, 2021.

Management continues to evaluate the need for valuation allowances on the Company's deferred tax assets. As a result of the impairment of the Company's equity method investment in the MVP Joint Venture, management expects a full valuation allowance on the Company's deferred tax assets, net of deferred tax liabilities, for the year ended December 31, 2022. The Company's estimated annual effective tax rate is susceptible to change, including the amount of valuation allowances realized, and such impact may be substantial.

Net Income Attributable to Noncontrolling Interests

Net income attributable to noncontrolling interests was relatively flat for the three and nine months ended September 30, 2022 compared to the three and nine months ended September 30, 2021.

Capital Expenditures

See "Investing Activities" and "Capital Requirements" under "Capital Resources and Liquidity" for discussion of capital expenditures and capital contributions.

Outlook

The Company's strategically-located assets overlay core acreage in the Appalachian Basin. The location of the Company's assets allows its producer customers to access major demand markets in the U.S. The Company is one of the largest natural gas gatherers in the U.S. and its largest customer, EQT, was one of the largest natural gas producers in the U.S. based on average daily sales volumes as of September 30, 2022 and EQT's public senior debt had investment grade credit ratings from Standard & Poor's Global Ratings (S&P) and Fitch Ratings (Fitch) as of that date. The Company believes it has a stable cash flow profile, with approximately 71% of its operating revenue for the nine months ended September 30, 2022 generated by firm reservation fees. The percentage of the Company's operating revenues that are generated by firm reservation fees is expected to increase in future years as a result of the 15-year term EQT Global GGA, which includes an MVC of 3.0 Bcf per day that became effective on April 1, 2020 and gradually steps up to 4.0 Bcf per day through December 2031 following the full in-service date of the MVP (should it be placed in-service). The Company intends for the contract structure to enhance the stability of the Company's cash flows and limit its exposure to customer volume variability.

The Company's principal strategy is to achieve greater scale and scope, enhance the durability of its financial strength and to continue to work to position itself for a lower carbon economy, which the Company expects will drive future growth and investment. The Company is implementing its strategy by leveraging its existing assets, executing on its growth projects (including through potential expansion and extension opportunities), periodically evaluating strategically-aligned inorganic growth opportunities (whether within its existing footprint or to extend the Company's reach into the southeast United States and to become closer to key demand markets, such as the Gulf of Mexico LNG export market), and focusing on ESG and sustainability-oriented initiatives. Additionally, the Company is also continuing to focus on strengthening its balance sheet through:

•highly predictable cash flows backed by firm reservation fees;

•actions to de-lever its balance sheet;

•disciplined capital spending;

•operating cost control; and

•an appropriate dividend policy.

As part of its approach to organic growth, the Company is focused on its projects and assets outlined below, many of which are supported by contracts with firm capacity, MVC or ARC commitments.

The Company expects that the MVP (should it be placed in-service), together with the Hammerhead pipeline and Equitrans, L.P. Expansion Project (EEP), will primarily drive the Company's organic growth, as discussed in further detail below, and, in the case of the MVP, the Company's ability to de-lever and the pace thereof (which delevering the Company views as a critical strategic objective for its business).

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•Mountain Valley Pipeline. The MVP is being constructed by a joint venture among the Company and affiliates of each of NextEra Energy, Inc., Consolidated Edison, Inc. (Con Edison), AltaGas Ltd. and RGC Resources, Inc. As of September 30, 2022, the Company owned an approximate 47.1% interest in the MVP project and will operate the MVP. The MVP is an estimated 300-mile, 42-inch diameter natural gas interstate pipeline with a targeted capacity of 2.0 Bcf per day that is designed to span from the Company's existing transmission and storage system in Wetzel County, West Virginia to Pittsylvania County, Virginia, which will provide access to the growing southeast demand markets. The MVP Joint Venture has secured a total of 2.0 Bcf per day of firm capacity commitments at 20-year terms. Additional shippers have expressed interest in the MVP project and the MVP Joint Venture is evaluating an expansion opportunity that could add approximately 0.5 Bcf per day of capacity through the installation of incremental compression.

In October 2017, the FERC issued the Certificate of Public Convenience and Necessity (the Certificate) for the MVP. In the first quarter of 2018, the MVP Joint Venture received limited notice to proceed with certain construction activities from the FERC and commenced construction. However, as discussed in "The regulatory approval process for the construction of new midstream assets is very challenging, has significantly increased costs and delayed targeted in-service dates, and decisions by regulatory and judicial authorities in pending or potential proceedings, particularly with respect to litigation in the Fourth Circuit, are likely to impact our or the MVP Joint Venture's ability to obtain or maintain in effect all approvals and authorizations necessary to complete certain projects in a timely manner or at all or our ability to achieve the expected investment returns on the projects." included in Part II, "Item 1A. Risk Factors", as well as in Part II, "Item 1. Legal Proceedings" of this Quarterly Report on Form 10-Q, the MVP project has been subject to repeated, significant delays and cost increases because of legal and regulatory setbacks, particularly in respect of litigation in the U.S. Court of Appeals for the Fourth Circuit (Fourth Circuit), including, as discussed in Part II, "Item 1. Legal Proceedings" of this Quarterly Report on Form 10-Q, on January 25, 2022, the Fourth Circuit’s vacatur and remanding on specific issues of the MVP Joint Venture's authorizations related to the Jefferson National Forest (JNF) received from the Bureau of Land Management (BLM) and the U.S. Forest Service (USFS) and on February 2, 2022, the Fourth Circuit’s vacatur and remanding on specific issues of the Biological Opinion and Incidental Take Statement issued by the United States Department of the Interior's Fish and Wildlife Service (FWS) for the MVP project.

Given ongoing litigation and regulatory matters, on June 24, 2022, the MVP Joint Venture filed a request with the Federal Energy Regulatory Commission (FERC) for an extension of time to complete the MVP project for an additional four years (relative to a prior obtained extension) through October 13, 2026, which request was granted on August 23, 2022.

The MVP Joint Venture has sought new authorizations relating to the JNF, a new Biological Opinion and Incidental Take Statement, and an Individual Permit from the Huntington, Pittsburgh and Norfolk Districts of the U.S. Army Corps of Engineers (Army Corps) to effect approximately 300 water crossings utilizing open cut techniques. In April 2022, the MVP obtained the FERC’s authorization to amend the Certificate to utilize alternative trenchless construction methods to effect approximately 120 water crossings. In order to complete the project, in addition to the authorizations with respect to water crossings and other relevant regulatory matters, the MVP Joint Venture needs to continue to have available the orders previously issued by the FERC that are necessary to complete the MVP project and receive authorization from the FERC to complete construction work in the portion of the project route currently remaining subject to the FERC’s previous stop work order and in the JNF. The MVP Joint Venture also is participating in the defense of Section 401 water quality certification approvals received in December 2021 from each of the West Virginia Department of Environmental Protection (WVDEP) and the Virginia Department of Environmental Quality (VADEQ) (the State 401 Approvals), which are the subject of ongoing litigation in the Fourth Circuit.

For further information regarding litigation and regulatory related delays and risks affecting the completion of the MVP project, see Part II, "Item 1. Legal Proceedings" of this Quarterly Report on Form 10-Q. See also "The regulatory approval process for the construction of new midstream assets is very challenging, has significantly increased costs and delayed targeted in-service dates, and decisions by regulatory and judicial authorities in pending or potential proceedings, particularly with respect to litigation in the Fourth Circuit, are likely to impact our or the MVP Joint Venture's ability to obtain or maintain in effect all approvals and authorizations necessary to complete certain projects in a timely manner or at all or our ability to achieve the expected investment returns on the projects." and "Expanding our business by constructing new midstream assets subjects us to risks." included in Part II, "Item 1A. Risk Factors" of this Quarterly Report on Form 10-Q and "Item 1A. Risk Factors" in the Company's Annual Report on Form 10-K for the year ended December 31, 2021, as applicable.

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On October 25, 2022, oral argument was held in the Fourth Circuit relating to the WVDEP State 401 Approval, which oral argument was conducted by the same panel of Fourth Circuit judges as have appeared, and overruled permitting agencies, in numerous prior matters relating to the MVP Joint Venture. Based upon the oral argument, the Company perceives continued hostility to and risk posed by the Fourth Circuit panel to the MVP Joint Venture’s State 401 Approvals and those potential future authorizations and permits within the Fourth Circuit’s jurisdiction, including any new authorizations for the JNF and new Biological Opinion and Incidental Take Statement. Further, as of the filing of this Quarterly Report on Form 10-Q, there remains uncertainty with respect to the relevant federal agencies' final permitting issuance timelines.

Notwithstanding prior setbacks and ongoing risks, the MVP Joint Venture continues to engage in pursuing the requisite authorizations necessary under applicable law from the relevant agencies to complete the MVP project. However, in light of the continuing and likely future litigation and regulatory challenges posed to the MVP project (including the need for existing or future authorizations to remain in effect notwithstanding any pending or future challenge thereto) and timing uncertainties within the permitting process, the Company believes that the best path to complete the MVP in accordance with the Company’s previously-communicated targeted full in-service date for the project during the second half of 2023 and at a targeted total project cost of approximately $6.6 billion (excluding AFUDC) is for the United States Congress to expeditiously pass, and there to be enacted, federal energy infrastructure permitting reform legislation that specifically requires the completion of the MVP project, similar to MVP-specific aspects of legislation proposed in September 2022 by each of United States Senators Joseph Manchin and Shelley Moore Capito. As of the date of this Quarterly Report on Form 10-Q, the Company is cognizant of continuing significant bipartisan support for federal energy infrastructure permitting reform legislation and that the MVP project continues to be a prominent part of discussions with respect to such legislation.

On November 4, 2019, Con Edison exercised an option to cap its investment in the construction of the MVP project at approximately $530 million (excluding AFUDC). The Company and NextEra Energy, Inc. are obligated, and RGC Resources, Inc., another member of the MVP Joint Venture owning an interest in the MVP project, has opted, to fund the shortfall in Con Edison's capital contributions on a pro rata basis. Such funding by the Company and funding by other members has and will correspondingly increase the Company's and such other members' respective interests in the MVP project and decrease Con Edison's interest in the MVP project. As a result, based on the Company's total targeted cost for the project of approximately $6.6 billion (excluding AFUDC), the Company's equity ownership in the MVP project will progressively increase from approximately 47.1% to approximately 48.1%.

Through September 30, 2022, based on the MVP project's total targeted cost, the Company had funded approximately $2.7 billion of its estimated total capital contributions of approximately $3.4 billion (inclusive of additional contributions required due to the Con Edison cap described above), which estimated total capital contributions include approximately $180 million in excess of the Company's ownership interest. For 2022, the Company expects to make total capital contributions of approximately $190 million to $210 million primarily related to ongoing right-of-way maintenance, as well as work completed in late 2021, of which approximately $157.3 million had been contributed to the MVP Joint Venture as of September 30, 2022.

•Wellhead Gathering Expansion Projects and Hammerhead Pipeline. During the nine months ended September 30, 2022, the Company invested approximately $195.9 million in gathering projects (inclusive of capital expenditures related to the noncontrolling interest in Eureka Midstream). For 2022, the Company expects to invest approximately $265 million to $285 million in gathering projects (inclusive of expected capital expenditures of approximately $20 million related to the noncontrolling interest in Eureka Midstream). The primary projects include infrastructure expansion of core development areas in the Marcellus and Utica Shales in southwestern Pennsylvania, southeastern Ohio and northern West Virginia for EQT, Range Resources Corporation (Range Resources) and other producers.

The Hammerhead pipeline is a 1.6 Bcf per day gathering header pipeline that is primarily designed to connect natural gas produced in Pennsylvania and West Virginia to the MVP, Texas Eastern Transmission and Dominion Transmission, is supported by a 20-year term, 1.2 Bcf per day, firm capacity commitment from EQT and cost approximately $540 million. The Company expects Hammerhead pipeline full commercial in-service to commence in conjunction with full MVP in-service.

During the second quarter of 2022, the Company entered into an agreement with a producer customer to install approximately 32,000 horsepower booster compression to existing facilities. The project is backed by a long-term commitment and is targeted to be in-service in mid-2024. The Company expects to invest approximately $70 million, with a majority of the capital spend in 2023 and 2024.

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•Transmission Projects and Equitrans Expansion Project. During the nine months ended September 30, 2022, the Company invested approximately $23.0 million in transmission projects, including the EEP. The EEP is designed to provide north-to-south capacity on the mainline Equitrans, L.P. system, including primarily for deliveries to the MVP. A portion of the EEP commenced operations with interruptible service in the third quarter of 2019. The EEP provides capacity of approximately 600 MMcf per day and offers access to several markets through interconnects with Texas Eastern Transmission, Dominion Transmission and Columbia Gas Transmission. Once the MVP is fully placed in service, firm transportation agreements for 550 MMcf per day of capacity will commence under 20-year terms.

For 2022, the Company expects to invest approximately $35 million in transmission projects, inclusive of capital expenditures expected for 2022 associated with the Company's Ohio Valley Connector expansion project (OVCX). OVCX will increase deliverability on the Company's existing Ohio Valley Connector pipeline (OVC) by approximately 350 MMcf per day, create new receipt and delivery transportation paths, and enhance long-term reliability. The project is supported by new long-term firm capacity commitments of 330 MMcf per day, as well as an extension of approximately 1.0 Bcf per day of existing contracted mainline capacity for EQT. OVCX is designed to meet growing demand in key markets in the mid-continent and gulf coast through existing interconnects with long-haul pipelines in Clarington, Ohio. On July 7, 2022, the FERC issued a Notice of Intent to Prepare an Environmental Impact Statement for OVCX, and on September 30, 2022, issued a Draft Environmental Impact Statement for the project. Based on the expected regulatory and permitting timeframe, the Company is targeting the incremental OVC capacity to be in-service during the first half of 2024. The Company expects to invest approximately $160 million in the project, which includes approximately $130 million for new compression. The project is consistent with the Company's ongoing efforts to optimize existing assets and achieve capital efficiency.

•MVP Southgate Project. In April 2018, the MVP Joint Venture announced the MVP Southgate project, which is a proposed 75-mile interstate pipeline that was approved by the FERC to extend from the MVP at Pittsylvania County, Virginia to new delivery points in Rockingham and Alamance Counties, North Carolina. The MVP Southgate project is backed by a 300 MMcf per day firm capacity commitment from Dominion Energy North Carolina, and, as currently designed, reflects potential expansion capabilities that could provide up to 900 MMcf per day of total capacity. The Company is expected to operate the MVP Southgate project and owned a 47.2% interest in the MVP Southgate project as of September 30, 2022.

The MVP Joint Venture submitted the MVP Southgate certificate application to the FERC in November 2018. In June 2020, the FERC issued the Certificate of Public Convenience and Necessity for the MVP Southgate; however, the FERC, while authorizing the project, directed the Office of Energy Projects not to issue a notice to proceed with construction until necessary federal permits are received for the MVP project and the Director of the Office of Energy Projects lifts the stop work order and authorizes the MVP Joint Venture to continue constructing the MVP project. See the corresponding discussion set forth in Part II, "Item 1. Legal Proceedings" of this Quarterly Report on Form 10-Q. In addition, there have been certain other litigation and regulatory-related delays affecting completion of the MVP Southgate project, including on August 11, 2020, the North Carolina Department of Environmental Quality denied the MVP Southgate project's application for a Clean Water Act Section 401 Individual Water Quality Certification and Jordan Lake Riparian Buffer Authorization due to uncertainty surrounding the completion of the MVP project, which denial was reissued in April 2021 following an appellate proceeding. On December 3, 2021, the Virginia State Air Pollution Control Board denied the permit for the MVP Southgate project’s Lambert compressor station, which decision the MVP Joint Venture initially appealed before withdrawing its request to review the denial.

Given the continually evolving regulatory and legal environment for greenfield pipeline construction projects, as well as factors specific to the MVP and MVP Southgate projects, including the December 2021 compressor station state air permit denial, the MVP Joint Venture continues to evaluate the MVP Southgate project, including engaging in discussions with Dominion Energy North Carolina regarding options with respect to the MVP Southgate project, including likely refining the project’s design, scope and timing in lieu of pursuing the project as originally contemplated. Dominion Energy North Carolina’s obligations under the precedent agreement in support of the original project are subject to certain conditions, including that the MVP Joint Venture would have completed construction of the project facilities by June 1, 2022, which deadline is subject to extension by virtue of previously declared events of force majeure. The Company is unable to predict the results of the discussions between the MVP Joint Venture and Dominion Energy North Carolina, including any potential modifications to the project, or ultimate undertaking or completion of the project.

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The MVP Southgate project, as originally designed, was estimated to cost a total of approximately $450 million to $500 million, a portion of which the Company expected to fund. For 2022, the Company expects to make capital contributions of less than $5 million to the MVP Joint Venture for the MVP Southgate project, of which approximately $0.9 million had been contributed as of September 30, 2022.

•Water Operations. During the nine months ended September 30, 2022, the Company invested approximately $49.1 million in its water infrastructure. In 2022, the Company expects to invest approximately $70 million to complete the initial mixed-use water system buildout. This includes approximately $20 million to replace certain previously installed water lines that the Company believes do not meet their prescribed quality standards. The Company has placed and is targeting placing portions of the system in service in 2022, with the majority of the system targeted to be placed in service in 2023. The Company is pursuing recoupment of such replacement and related costs.

See further discussion of capital expenditures in the "Capital Requirements" section below.

EQT Global GGA. On February 27, 2020, the Company announced the EQT Global GGA, which is a 15-year contract that includes, among other things, a 3.0 Bcf per day MVC (which gradually steps up to 4.0 Bcf per day through December 2031 following the full in-service date of the MVP) and the dedication of a substantial majority of EQT’s core acreage in southwestern Pennsylvania and West Virginia to the Company. Under the EQT Global GGA, EQT has the ability to receive certain gathering fee relief over a period of three years. The EQT Global GGA replaced 14 previous gathering agreements between EQT and the Company.

Under the EQT Global GGA, the performance obligation is to provide daily MVC capacity and as such the total consideration is allocated proportionally to the daily MVC over the life of the contract. In periods that the gathering MVC revenue billed will exceed the allocated consideration, the excess will be deferred to the contract liability and recognized in revenue when the performance obligation has been satisfied. While the 3.0 Bcf per day MVC capacity became effective on April 1, 2020, additional daily MVC capacity and the associated gathering MVC fees payable by EQT to the Company as set forth in the EQT Global GGA are conditioned upon the full in-service date of the MVP. There are ongoing (and potentially future) legal and regulatory matters that affect the MVP project which have had and/or could have (as applicable) a material effect on the performance obligation, the allocation of the total consideration over the life of the contract and the gathering MVC fees payable by EQT under the contract.

Before January 1, 2026, beginning the first day of the quarter in which the full in-service date of the MVP occurs, the gathering MVC fees payable by EQT to the Company are subject to potential reductions for certain contract years as set forth in the EQT Global GGA, which, prior to EQT's exercise of the EQT Cash Option, provided for an estimated aggregate fee relief of up to approximately $270 million in the first twelve-month period, approximately $230 million in the second twelve-month period and approximately $35 million in the third twelve-month period. Further, the EQT Global GGA provides for a fee credit to the gathering rate for certain gathered volumes that also receive separate transmission services under certain transmission contracts. Given that the MVP full in-service date did not occur by January 1, 2022, on July 8, 2022, EQT irrevocably elected under the EQT Global GGA to forgo up to approximately $145 million of the potential gathering fee relief in such first twelve-month period and up to approximately $90 million of the potential gathering fee relief in such second twelve-month period in exchange for a cash payment from the Company to EQT in the amount of approximately $195.8 million. As a result of EQT exercising the EQT Cash Option, the maximum aggregate fee relief applicable under the EQT Global GGA in such first twelve-month period and such second twelve-month period was reduced to be approximately $125 million and $140 million, respectively. The Company utilized borrowings under the Amended EQM Credit Facility to effect payment of the EQT Cash Option to EQT on October 4, 2022, which payment will be reflected in net cash provided by operating activities for the fourth quarter of 2022.

Based on the Henry Hub natural gas forward strip prices as of October 28, 2022 and the terms of the Henry Hub cash bonus payment provision, any further delays in the full in-service date for the MVP project, including beyond the Company's previously communicated targeted full in-service date for the project during the second half of 2023, would further decrease the estimated fair value of the derivative asset attributable to the Henry Hub cash bonus payment provision, and such decrease may be substantial. For a discussion of the potential effect of hypothetical changes to the NYMEX Henry Hub natural gas future prices on the estimated fair value of the derivative asset attributable to the Henry Hub cash bonus payment provision, see "Commodity Prices" in Part I, "Item 3. Quantitative and Qualitative Disclosures About Market Risk" of this Quarterly Report on Form 10-Q. Changes in estimated fair value are recognized in other income, net, on the Company’s statements of consolidated comprehensive income.

2021 Water Services Agreement. On October 22, 2021, the Company and EQT entered into a new 10-year, mixed-use water services agreement covering operations within a dedicated area in southwestern Pennsylvania. The 2021 Water Services

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Agreement became effective on March 1, 2022 and replaced the Water Services Letter Agreement and certain other existing Pennsylvania water services agreements. Pursuant to the 2021 Water Services Agreement, EQT has agreed to pay the Company a minimum ARC for water services equal to $40 million in each of the first five years of the 10-year contract term and equal to $35 million per year for the remaining five years of the contract term.

For further discussion of the Company's commercial relationship with EQT and related considerations, including risk factors, see "Item 1A. Risk Factors." in the Company's Annual Report on Form 10-K for the year ended December 31, 2021. For further discussion on litigation and regulatory challenges affecting the MVP project, see "Outlook" above and Part II, "Item 1. Legal Proceedings" of this Quarterly Report on Form 10-Q.

Potential Future Impairments. The accounting estimates related to impairments are susceptible to change, including estimating fair value which requires considerable judgment. For goodwill, management’s estimate of a reporting unit’s future financial results is sensitive to changes in assumptions, such as changes in stock prices, weighted-average cost of capital, terminal growth rates and industry multiples. Similarly, cash flow estimates utilized for purposes of evaluating long-lived assets and equity method investment (such as in the MVP Joint Venture) require the Company to make projections and assumptions for many years into the future for pricing, demand, competition, operating costs, commencement of operations, resolution of relevant legal and regulatory matters, and other factors. The Company evaluates long-lived assets and equity method investments for impairment when events or changes in circumstances indicate, in management’s judgment, that the carrying value of such assets may not be recoverable (meaning, in the case of its equity method investment, that such investment has suffered other-than-temporary declines in value under ASC 323). The Company believes the estimates and assumptions used in estimating its reporting units’, its long-lived assets' and its equity investment's fair values are reasonable and appropriate as of September 30, 2022; however, assumptions and estimates are inherently subject to significant business, economic, competitive, regulatory, judicial and other risks that could materially affect the calculated fair values and the resulting conclusions regarding impairments, which could materially affect the Company’s results of operations and financial position. Additionally, actual results could differ from these estimates and assumptions may not be realized. When estimating the fair value of its equity method investment, the Company utilizes an income approach under which significant judgments and assumptions, including the discount rate and probability-weighted scenarios, are sensitive to change. For example, an increase of 25 basis points to the discount rate and a 5% decrease to the probability of success would have resulted in an increase to the third quarter 2022 impairment charge discussed in Note 2 to the consolidated financial statements by approximately $158 million or 20.2%. The Company also continues to evaluate and monitor the ongoing legal and regulatory matters affecting the MVP and MVP Southgate projects, as further described in Part II, “Item 1. Legal Proceedings” of this Quarterly Report on Form 10-Q. Further adverse or delayed developments with respect to such matters or other adverse developments, as well as potential macroeconomic factors, including other than temporary market fluctuations, changes in interest rates, cost increases and other unanticipated events, could require that the Company further modify assumptions reflected in the probability-weighted scenarios of discounted future net cash flows (including with respect to the probability of success) utilized to estimate the fair value of its equity investment in the MVP Joint Venture, which could result in an other-than-temporary decline in value, resulting in an incremental impairment of that investment. While macroeconomic factors in and of themselves may not be a direct indicator of impairment, should an impairment indicator be identified in the future, macroeconomic factors such as changes in interest rates could ultimately impact the size and scope of any potential impairment. See “Reviews of our goodwill, intangible and other long-lived assets and equity method investment in the MVP Joint Venture have resulted in significant impairment charges, and reviews of our goodwill, intangible and other long-lived assets and equity method investment in the MVP Joint Venture could result in future significant impairment charges.” included in “Item 1A. Risk Factors" in the Company's Annual Report on Form 10-K for the year ended December 31, 2021 and the Company's discussion of "Critical Accounting Estimates" included in "Item 7. Management's Discussion and Analysis of Financial Condition and Results of Operations" in the Company's Annual Report on Form 10-K for the year ended December 31, 2021. See Note 2 to the consolidated financial statements for discussion of the impairment of the Company's equity method investment in the MVP Joint Venture during the third quarter of 2022.

As of the filing of this Quarterly Report on Form 10-Q, the Company cannot predict the likelihood or magnitude of any future impairment.

For a discussion of capital expenditures, see "Capital Requirements" under "Capital Resources and Liquidity" below.

Capital Resources and Liquidity

The Company's liquidity requirements are to finance its operations, its capital expenditures, potential acquisitions and other strategic transactions and capital contributions to joint ventures, including the MVP Joint Venture, to pay cash dividends and distributions and to satisfy any indebtedness obligations. The Company's ability to meet these liquidity requirements depends on the Company's cash flow from operations, the continued ability of the Company to borrow under its credit facilities and the Company's ability to raise capital in banking and capital markets. We believe that our cash on hand and future cash generated

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from operations, together with available borrowing capacity under our subsidiaries' credit facilities and our access to banking and capital markets, will provide adequate resources to fund our short-term and long-term capital, operating and financing needs. However, cash flow and capital raising activities may be affected by prevailing economic conditions in the natural gas industry and other financial and business factors (including those market forces discussed in “Our business is subject to climate change-related transitional risks (including evolving climate-focused regulation and climate change-driven trends emphasizing financing non-fossil fuel businesses and prompting pursuit of emissions reductions, lower-carbon technologies and alternative forms of energy) and physical risks that could significantly increase our operating expenses and capital costs, adversely affect our customers’ development plans, and reduce demand for our products and services." included in "Item 1A. Risk Factors" in the Company's Annual Report on Form 10-K for the year ended December 31, 2021), some of which are beyond the Company's control. The Company's available sources of liquidity include cash from operations, cash on hand, borrowings under its subsidiaries' revolving credit facilities, issuances of additional debt and issuances of additional equity securities. As of September 30, 2022, pursuant to the terms of the Amended EQM Credit Facility, EQM had the ability to borrow approximately $0.7 billion under the Amended EQM Credit Facility. The amount the Company is able to borrow under the Amended EQM Credit Facility is bounded by a maximum consolidated leverage ratio.

See “Security Ratings” below for a discussion of EQM’s credit ratings during 2022. Based on EQM's credit rating levels, EQM has delivered credit support to the MVP Joint Venture in the form of letters of credit, which, in the case of the MVP project, is in the amount of approximately $219.7 million and is, in the case of the MVP Southgate project, $14.2 million, in each case as of September 30, 2022 and which are subject to adjustment based on the applicable construction budget. See "A further downgrade of EQM’s credit ratings, including in connection with the MVP project or customer credit ratings changes, which are determined by independent third parties, could impact our liquidity, access to capital, and costs of doing business." included in "Item 1A. Risk Factors" in the Company’s Annual Report on Form 10-K for the year ended December 31, 2021.

Operating Activities

Net cash flows provided by operating activities were $746.5 million for the nine months ended September 30, 2022 compared to $822.0 million for the nine months ended September 30, 2021. The decrease was primarily driven by the timing of working capital receipts and payments.

Investing Activities

Net cash flows used in investing activities were $427.2 million for the nine months ended September 30, 2022 compared to $386.1 million for the nine months ended September 30, 2021. Investing activities increased by approximately $41.0 million for the nine months ended September 30, 2022 as compared to the nine months ended September 30, 2021, primarily due to an increase in capital expenditures spending on various wellhead gathering and water expansion projects, partially offset by a decrease in capital contributions to the MVP Joint Venture. See “Capital Requirements” below for a discussion of forecasted 2022 capital expenditures and capital contributions to the MVP Joint Venture.

Financing Activities

Net cash flows used in financing activities were $406.0 million for the nine months ended September 30, 2022 compared to $449.7 million for the nine months ended September 30, 2021. For the nine months ended September 30, 2022, the primary uses of financing cash flows were the purchase of an aggregate cost of $1,021.5 million of certain tranches of EQM's outstanding long-term indebtedness pursuant to the 2022 Tender Offers and an open market purchase, repayments on borrowings under the revolving credit facilities, and the payment of dividends to shareholders, while the primary source of financing cash flows were the issuance of the 2022 Senior Notes and borrowings under the revolving credit facilities. For the nine months ended September 30, 2021, the primary uses of financing cash flows were the payment for retirement of the EQM Term Loans and termination of the Amended 2019 EQM Term Loan Agreement, repayments on borrowings under the revolving credit facilities, the Company's purchase of an aggregate principal amount of $500 million of EQM's 2023 Notes pursuant to the 2021 Tender Offers and the payment of dividends to shareholders, while the primary source of financing cash flows was the issuance of the 2021 Senior Notes and borrowings under the revolving credit facilities.

Capital Requirements

The gathering, transmission and storage and water services businesses are capital intensive, requiring significant investment to develop new facilities and to maintain and upgrade existing operations.

Capital expenditures in 2022 are expected to be approximately $370 million to $390 million (including approximately $20 million attributable to the noncontrolling interest in Eureka Midstream). The Company expects to make capital contributions to the MVP Joint Venture in 2022 of approximately $190 million to $210 million for purposes of the MVP project

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primarily related to ongoing work required for right-of-way maintenance and work completed in late 2021 and less than $5 million related to the MVP Southgate project. Capital contributions payable to the MVP Joint Venture are accrued upon the issuance of a capital call by the MVP Joint Venture. The Company's short-term and long-term capital investments may vary significantly from period to period based on the available investment opportunities, the timing of the construction of the MVP, MVP Southgate and other projects, and maintenance needs. The Company expects to fund short-term and long-term capital expenditures and capital contributions primarily through cash on hand, cash generated from operations, available borrowings under its subsidiaries' credit facilities and its access to banking and capital markets.

See Note 7 for further discussion of the reduction of commitments under the Amended EQM Credit Facility pursuant to the Third Amendment.

Credit Facility Borrowings

See Note 7 to the consolidated financial statements for discussion of the Amended EQM Credit Facility and the 2021 Eureka Credit Facility.

Security Ratings

The table below sets forth the credit ratings for EQM's debt instruments at September 30, 2022.

	EQM
	Senior Notes
Rating Service	Rating	Outlook
Moody's	Ba3	Stable
S&P	BB-	Negative
Fitch	BB	Negative

On September 30, 2022, Moody's affirmed EQM's rating of Ba3 and revised EQM's outlook from negative to stable. In connection with the issuance of the 2022 Notes each of Moody's, S&P and Fitch affirmed EQM's credit ratings. EQM's credit ratings are subject to revision or withdrawal at any time by the assigning rating organization, and each rating should be evaluated independently of any other rating. The Company cannot ensure that a rating will remain in effect for any given period of time or that a rating will not be lowered or withdrawn entirely by a credit rating agency if, in its judgment, circumstances so warrant. If any credit rating agency downgrades or withdraws EQM's ratings, including for reasons relating to the MVP project (such as delays in the targeted full in-service date of the MVP project or increases in such project’s targeted costs), EQM’s leverage or credit ratings of the Company's customers, the Company's access to the capital markets could become more challenging, borrowing costs will likely increase, the Company may be required to provide additional credit assurances (the amount of which may be substantial) in support of commercial agreements such as joint venture agreements, and the potential pool of investors and funding sources may decrease. In order to be considered investment grade, a company must be rated Baa3 or higher by Moody's, BBB- or higher by S&P, or BBB- or higher by Fitch. All of EQM's credit ratings are considered non-investment grade.

Commitments and Contingencies

In the ordinary course of business, various legal and regulatory claims and proceedings are pending or threatened against the Company and its subsidiaries. While the amounts claimed may be substantial, the Company is unable to predict with certainty the ultimate outcome of such claims and proceedings. The Company accrues legal and other direct costs related to loss contingencies when incurred. The Company establishes reserves whenever it believes it to be appropriate for pending matters. Furthermore, after consultation with counsel and considering available insurance, the Company believes that the ultimate outcome of any matter currently pending against it or any of its consolidated subsidiaries will not materially affect its business, financial condition, results of operations, liquidity or ability to pay dividends to its shareholders.

See "The regulatory approval process for the construction of new midstream assets is very challenging, has significantly increased costs and delayed targeted in-service dates, and decisions by regulatory and judicial authorities in pending or potential proceedings, particularly with respect to litigation in the Fourth Circuit, are likely to impact our or the MVP Joint Venture's ability to obtain or maintain in effect all approvals and authorizations necessary to complete certain projects in a timely manner or at all or our ability to achieve the expected investment returns on the projects." under Part II, "Item 1A. Risk Factors" of this Quarterly Report on Form 10-Q and Part II, "Item 1. Legal Proceedings" of this Quarterly Report on Form 10-Q for discussion of certain litigation and regulatory proceedings, including related to the MVP and MVP Southgate projects.

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See Note 16 to the annual consolidated financial statements included in the Company's Annual Report on Form 10-K for the year ended December 31, 2021 for further discussion of the Company's commitments and contingencies.

Dividends

On October 25, 2022, the Board declared cash dividends for the third quarter of 2022 of $0.15 per common share and $0.4873 per Equitrans Midstream Preferred Share to shareholders of record at the close of business on November 2, 2022.

Critical Accounting Estimates

The Company's critical accounting policies are described in "Item 7. Management's Discussion and Analysis of Financial Condition and Results of Operations" contained in the Company's Annual Report on Form 10-K for the year ended December 31, 2021. Any new accounting policies or updates to existing accounting policies as a result of new accounting pronouncements have been included in the notes to the Company's consolidated financial statements in Part I, "Item 1. Financial Statements" of this Quarterly Report on Form 10-Q. The Company's critical accounting policies are considered critical due to the significant judgments and estimates used in the preparation of the Company's consolidated financial statements and the material impact on the results of operations or financial condition. Actual results could differ from those judgments and estimates.

Item 3. Quantitative and Qualitative Disclosures About Market Risk

Interest Rate Risk. Changes in interest rates affect the amount of interest the Company earns on cash, cash equivalents and short-term investments and the interest rates EQM and Eureka pay on borrowings under their respective revolving credit facilities. The Amended EQM Credit Facility and the 2021 Eureka Credit Facility provide for variable interest rates and thus expose the Company, through EQM and Eureka, to fluctuations in market interest rates. In addition, EQM's interest rates under the Amended EQM Credit Facility are impacted by changes in EQM's credit ratings (which may be caused by factors outside of EQM's control). Eureka's interest rates under the 2021 Eureka Credit Facility are impacted by changes in Eureka's Consolidated Leverage Ratio (as defined in the 2021 Eureka Credit Facility) which may fluctuate based on Eureka Midstream's liquidity needs or operating results. Accordingly, if interest rates were to increase, our debt service obligations on the variable rate indebtedness would increase even though the amount borrowed remained the same, and our net income and cash flows, including cash available for servicing our indebtedness, will correspondingly decrease. Based on commitments as of the Earlier Maturity Date (as previously defined) and assuming all loans are fully drawn, each quarter point change in interest rates would result in a change of approximately $5.4 million in annual interest expense on indebtedness under the Amended EQM Credit Facility. Assuming all loans are fully drawn, each quarter point change in interest rates would result in a change of approximately $1.0 million in annual interest expense on indebtedness under the 2021 Eureka Credit Facility. Further, changes in interest rates may affect the dividend payable on Equitrans Midstream Preferred Shares after March 31, 2024, which could affect the amount of cash the Company has available to make quarterly cash dividends to its shareholders. EQM's senior notes are fixed rate and thus do not expose the Company to fluctuations in market interest rates. Changes in interest rates do affect the fair value of EQM's fixed rate debt. See Notes 7 and 8 to the consolidated financial statements for discussion of borrowings and for discussion of fair value measurements, respectively. EQM and Eureka may from time to time hedge the interest on portions of borrowings under the revolving credit facilities, as applicable, in order to manage risks associated with floating interest rates. However, the Company may not maintain hedges with respect to all of its variable rate indebtedness, and any hedges it enters into may not fully mitigate its interest rate risk.

Credit Risk. The Company is exposed to credit risk, which is the risk that it may incur a loss if a counterparty fails to perform under a contract. The Company actively manages its exposure to credit risk associated with customers through credit analysis, credit approval and monitoring procedures. For certain transactions, the Company requests letters of credit, cash collateral, prepayments or guarantees as forms of credit support. Equitrans, L.P.'s FERC tariffs require tariff customers that do not meet specified credit standards to provide three months of credit support; however, the Company is exposed to credit risk beyond this three-month period when its tariffs do not require its customers to provide additional credit support. For some of the Company's long-term contracts associated with system expansions, it has entered into negotiated credit agreements that provide for other credit support if certain credit standards are not met. The Company has historically experienced only minimal credit losses in connection with its receivables.

The Company is exposed to the credit risk of its customers, including its largest customer, EQT, including as a result of changes in customer credit ratings, liquidity and access to capital markets. At September 30, 2022, EQT's public senior debt had investment grade credit ratings from S&P and Fitch and a non-investment grade credit rating from Moody's. In addition, EQT has guaranteed the payment obligations of certain of its subsidiaries, up to a maximum amount of $115 million, $131 million and $30 million related to gathering, transmission and water services, respectively, across all applicable contracts, for the benefit of the subsidiaries of the Company providing such services. See Note 15 to the annual consolidated financial statements

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included in the Company's Annual Report on Form 10-K for the year ended December 31, 2021 for further discussion of the Company's exposure to credit risk.

Commodity Prices. The Company's business is dependent on continued natural gas production and the availability and development of reserves in its areas of operation. Prices for natural gas and NGLs, including regional basis differentials, have previously adversely affected, and may in the future adversely affect, timing of development of additional reserves and production that is accessible by the Company’s pipeline and storage assets, which also negatively affects the Company’s water services business, and the creditworthiness of the Company’s customers.

Increases in natural gas prices do not necessarily result in corresponding increases to the production forecasts of the Company's customers and, as of the date of this Quarterly Report on Form 10-Q, the Company's largest customers have continued to maintain their production forecasts without significant increases. Even at commercially attractive natural gas prices, certain of the Company's customers have maintained largely flat production forecasts in light of, among other things, the absence of incremental takeaway capacity from the Appalachian Basin and the Company's customers may still maintain flat or modest increases to production forecasts based on various factors, which could include regional takeaway capacity limitations, access to capital, investor expectations regarding free cash flow, a desire to reduce or refinance leverage or other factors. Additionally, prices may decline based on numerous factors, including levels of associated gas. See also “Decreases in production of natural gas in our areas of operation, whether as a result of producer corporate capital allocation strategies, lower regional natural gas prices, regional takeaway constraints, and/or other factors, have adversely affected, and in the future could adversely affect, our business and operating results and reduce our cash available to pay cash dividends to our shareholders.” and "The lack of diversification of our assets and geographic locations could adversely affect us." under "Item 1A. Risk Factors" in the Company's Annual Report on Form 10-K for the year ended December 31, 2021. Additionally, lower natural gas prices (including regionally), corporate capital allocation strategies or regional takeaway constraints, could cause producers to determine in the future that drilling activities in areas outside of the Company's current areas of operation are strategically more attractive to them.

Many of the Company’s customers, including EQT, have entered into long-term firm reservation gathering, transmission and water contracts or contracts with MVCs on the Company's systems and approximately 71% of the Company's operating revenues for the nine months ended September 30, 2022 was generated by firm reservation fees. As a result, the Company believes that the effect of temporary declines in volumes of gas gathered, transported or stored on its systems may be mitigated because firm reservation fee revenues are paid regardless of volumes supplied to the system by customers (although significant declines in gas production in the Company's areas of operations would adversely affect the Company's results of operations, financial condition and liquidity as approximately 29% of the Company’s operating revenues for the nine months ended September 30, 2022 was generated by volumetric-based fee revenues). See "Our exposure to direct commodity price risk may increase in the future." under "Item 1A. Risk Factors" in the Company's Annual Report on Form 10-K for the year ended December 31, 2021.

Price declines and sustained periods of low natural gas and NGL prices could have an adverse effect on the creditworthiness of the Company's customers and related ability to pay firm reservation fees under long-term contracts and/or affect, as discussed above, activity levels and, accordingly, volumetric-based fees, which could affect the Company’s results of operations, liquidity or financial position. Credit risk and related management is further discussed above under “Credit Risk” in Part I, “Item 3. Quantitative and Qualitative Disclosures About Market Risk” of this Quarterly Report on Form 10-Q.

Unless the Company is successful in attracting and retaining new customers, the Company's ability to maintain or increase the capacity subscribed and volumes transported, gathered or provided on its systems will be dependent on receiving consistent or increasing commitments and production from its existing customers, which may be impacted by regional takeaway capacity limitations, commodity prices, including regional commodity prices and/or other factors, including corporate capital allocation strategies. While EQT has dedicated a substantial portion of its core acreage to the Company and has entered into long-term firm gathering and transmission contracts and contracts with MVCs on certain of the Company's systems, EQT may determine in the future that drilling or continuing to produce gas from existing wells in the Company's areas of operations is not economical above the amount to fulfill its required MVCs or otherwise strategically determine to curtail volumes on the Company's systems. Other than with respect to its MVCs and other firm commitments under existing contracts, EQT is under no contractual obligation to continue to develop its acreage dedicated to the Company. See also "Outlook" for a discussion of the EQT Global GGA and the 2021 Water Services Agreement.

The fair value of the Company’s derivative instruments is, in part, determined by estimates of the NYMEX Henry Hub natural gas forward price curve. A hypothetical 10% increase in NYMEX Henry Hub natural gas futures prices would increase the valuation of the Company’s derivative instruments by approximately $4.7 million, while a hypothetical 10% decrease in NYMEX Henry Hub natural gas futures prices would decrease the valuation of the Company’s derivative instruments by

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approximately $5.5 million. This fair value change assumes volatility based on prevailing market parameters at September 30, 2022. See "Outlook" and Note 8 for a discussion of the Henry Hub cash bonus payment provision.

For further discussion of commodity prices and related risks, see "Our exposure to direct commodity price risk may increase in the future." and "Decreases in production of natural gas in our areas of operation, whether as a result of producer corporate capital allocation strategies, lower regional natural gas prices, regional takeaway constraints, and/or other factors have adversely affected, and in the future could adversely affect, our business and operating results and reduce our cash available to pay cash dividends to our shareholders" and "The lack of diversification of our assets and geographic locations could adversely affect us.", each under "Item 1A. Risk Factors" in the Company's Annual Report on Form 10-K for the year ended December 31, 2021.

Other Market Risks. The Amended EQM Credit Facility is underwritten by a syndicate of 21 financial institutions until the Earlier Maturity Date, and a syndicate of 14 financial institutions from the Earlier Maturity Date through the Later Maturity Date. The 2021 Eureka Credit Facility is underwritten by a syndicate of 16 financial institutions. Each financial institution is obligated to fund its pro rata portion of any borrowings by EQM or Eureka, as applicable. In each case, no one lender of the financial institutions in the syndicate holds more than 10% of such facility. EQM's and Eureka's respective large syndicate groups and relatively low percentage of participation by each lender is expected to limit the Company's and Eureka's respective exposure to disruption or consolidation in the banking industry. See Note 7 for further details.

Item 4. Controls and Procedures

Evaluation of Disclosure Controls and Procedures. Under the supervision and with the participation of management, including the Company’s Principal Executive Officer and Principal Financial Officer, an evaluation of the Company’s disclosure controls and procedures (as defined in Rule 13a-15(e) under the Exchange Act) was conducted as of the end of the period covered by this report. Based on that evaluation, the Principal Executive Officer and Principal Financial Officer concluded that the Company’s disclosure controls and procedures were effective as of the end of the period covered by this report.

Changes in Internal Control over Financial Reporting. There were no changes in the Company's internal control over financial reporting (as such term is defined in Rule 13a-15(f) under the Exchange Act) that occurred during the third quarter of 2022 that have materially affected, or are reasonably likely to materially affect, the Company's internal control over financial reporting.

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PART II.  OTHER INFORMATION

Item 1. Legal Proceedings

In the ordinary course of business, various legal and regulatory claims and proceedings are pending or threatened against the Company and its subsidiaries. While the amounts claimed may be substantial, the Company is unable to predict with certainty the ultimate outcome of such claims and proceedings. The Company accrues legal and other direct costs related to loss contingencies when incurred. The Company establishes reserves whenever it believes it to be appropriate for pending matters. Furthermore, after consultation with counsel and considering available insurance, the Company believes that the ultimate outcome of any matter currently pending against it or any of its consolidated subsidiaries will not materially affect its business, financial condition, results of operations, liquidity or ability to pay dividends to its shareholders.

MVP Matters

The MVP Joint Venture is currently defending certain agency actions and judicial challenges to the MVP, as well as pursuing certain authorizations, any of which could affect the ability to complete or operate the project, including the following:

•Sierra Club, et al. Petitioners v. State Water Control Board, et al. Respondents and Mountain Valley Pipeline, Intervenor, Docket No. 21-2425, Fourth Circuit Court of Appeals (Fourth Circuit). On December 20, 2021, the Virginia Department of Environmental Quality (VADEQ) certified that the MVP project would satisfy Virginia’s water quality standards based on its comprehensive nine-month review of the MVP Joint Venture’s Joint Permit Application (VA 401 Permit). On December 22, 2021, Petitioners filed their petition challenging the VADEQ’s approval of the VA 401 Permit with the Fourth Circuit. On December 22, 2021, the Petitioners filed a request for an administrative stay with the VADEQ which was denied on January 4, 2022. On January 4, 2022, the Petitioners filed a petition with the Fourth Circuit seeking a judicial stay of the VA 401 Permit pending a decision on the merits. On February 11, 2022, Petitioners withdrew the stay petition. On May 16, 2022, the MVP Joint Venture filed a motion for random panel assignment with the Fourth Circuit, which motion was denied on June 24, 2022. Briefing is completed and oral argument is expected to occur in January 2023. If the challenge were successful on its merits, it could result in the MVP Joint Venture's VA 401 Permit being delayed or vacated and/or additional legal proceedings, the outcome of which the Company cannot ensure, and cause a delay or further delay in the full in-service date for the MVP project (and consequent impacts related to such delay), or otherwise adverse effects.

•Sierra Club, et al. Petitioners v. West Virginia Department of Environmental Protection, et al. Respondents and Mountain Valley Pipeline, Intervenor, Docket No. 22-1008, Fourth Circuit. On December 30, 2021, the West Virginia Department of Environmental Protection (WVDEP) certified that the MVP project would satisfy West Virginia’s water quality standards based on its comprehensive nine-month review of the MVP Joint Venture’s Joint Permit Application (WV 401 Permit). On January 3, 2022, Petitioners filed their petition challenging the WVDEP’s approval of the WV 401 Permit with the Fourth Circuit. On January 4, 2022, the Petitioners filed a request for an administrative stay with the WVDEP which was denied on January 11, 2022. On January 11, 2022, Petitioners filed a petition with the Fourth Circuit seeking a judicial stay of the WV 401 Permit pending a decision on the merits. The stay petition was denied by the Fourth Circuit on February 8, 2022. On May 16, 2022, the MVP Joint Venture filed a motion for random panel assignment with the Fourth Circuit, which motion was denied on June 22, 2022. Briefing is complete and oral argument occurred on October 25, 2022, and the parties are awaiting a decision. If the challenge were successful on its merits, it could result in the MVP Joint Venture's WV 401 Permit being delayed or vacated and/or additional legal proceedings, the outcome of which the Company cannot ensure, and cause a delay or further delay in the full in-service date for the MVP project (and consequent impacts related to such delay), or otherwise adverse effects.

•Jefferson National Forest Crossing and Associated Authorizations. In a different Fourth Circuit appeal, Sierra Club, et al. v. U.S. Forest Service, et al., consolidated under Case No. 17-2399, Fourth Circuit, filed in December 2017, the Sierra Club challenged a Bureau of Land Management (BLM) decision to grant a right-of-way to the MVP Joint Venture and a U.S. Forest Service (USFS) decision to amend its management plan to accommodate the MVP, both of which affect the MVP's approximate 3.5-mile segment in the Jefferson National Forest (JNF) in Virginia. On July 27, 2018, agreeing in part with the Sierra Club, the Fourth Circuit vacated the BLM and USFS decisions, finding fault with the BLM's analysis of the practicality of alternate routes and the USFS' analysis of erosion and sedimentation effects. The USFS published a draft Supplemental Environmental Impact Statement (SEIS) to the 2017 FERC Final Environmental Impact Statement for MVP in the Federal Register on September 25, 2020. On December 11, 2020, the USFS published a Final SEIS that addressed the issues raised in the prior proceedings and evaluated the most recent sedimentation analysis submitted to the agency consistent with the findings presented in MVP’s then existing Biological Opinion and Incidental Take Statement issued by the Department of the Interior's Fish and Wildlife Service (FWS) on September 4, 2020. See Appalachian Voices, et al. v. U.S. Dep’t of Interior below for additional

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information. On January 11, 2021, the MVP Joint Venture received final approval of the Record of Decision from the USFS and, on January 15, 2021, the BLM issued the required right-of-way permit for the MVP’s 3.5-mile segment in the JNF in Virginia (the JNF Right-of-Way). On January 11, 2021, Sierra Club, et al. filed a petition with the Fourth Circuit to reverse the USFS approval of the Record of Decision and, on January 15, 2021, filed a petition with the Fourth Circuit challenging BLM’s grant of the JNF Right-of-Way. See Wild Virginia, et al. v. United States Forest Service, et al., No. 21-1039(L). The Fourth Circuit consolidated the challenges to the Record of Decision and the JNF Right-of-Way and briefing was completed. On January 25, 2022, the Fourth Circuit, agreeing in part with the petitioners, vacated and remanded the Record of Decision and the JNF Right-of-Way, finding fault with (i) the USFS’ and BLM’s consideration of certain data from the U.S. Geological Survey and (ii) the USFS’ and BLM’s authorization of the use of conventional bores for stream crossings within the JNF based on a variance issued by the FERC, and, as a result of such issues, (iii) the USFS’ amendments in connection with the Record of Decision to the Jefferson Forest plan. On March 11, 2022, the MVP Joint Venture requested that the Fourth Circuit review the January 25, 2022 decision en banc, which rehearing was denied by the Fourth Circuit on March 25, 2022. The vacatur of the Record of Decision and the JNF Right-of-Way caused a delay in the then-targeted full in-service date for the MVP project (and consequent impacts relating to such delay). The Company cannot ensure whether and when any new authorizations will be received from the USFS and BLM and, if received, the result of any challenge to such authorizations.

On August 3, 2018, citing the court's vacatur and remand in Sierra Club, et al. v. U.S. Forest Service, et al., consolidated under Case No. 17-2399, the FERC issued a stop work order for the entire pipeline pending the agency actions on remand. The FERC modified its stop work order on August 29, 2018 to allow work to continue on all but approximately 25 miles of the project (the Exclusion Zone). On October 10, 2018, the Fourth Circuit granted a petition for rehearing filed by the MVP Joint Venture for the limited purpose of clarifying that the July 27, 2018 order did not vacate the portion of the BLM's Record of Decision authorizing a right-of-way and temporary use permit for the MVP to cross the Weston and Gauley Bridge Turnpike Trail in Braxton County, West Virginia. On October 15, 2018, the MVP Joint Venture filed with the FERC a request to further modify the August 3, 2018 stop work order to allow the MVP Joint Venture to complete the bore and install the pipeline under the Weston and Gauley Bridge Turnpike Trail. On October 24, 2018, the FERC granted the MVP Joint Venture's request to further modify the stop work order and authorize construction. Additionally, on October 9, 2020, the FERC authorized construction to resume project-wide (as it had been stopped by the FERC on October 15, 2019 in relation to a separate matter discussed below), other than with respect to the Exclusion Zone, which requires additional authorization. On December 17, 2020, the FERC again modified the stop work order and authorized construction to resume in 17 miles of the Exclusion Zone. The Company cannot guarantee whether or when the FERC will act in respect of any or all of the remaining portions of the Exclusion Zone. The FERC's October 9, 2020 and December 17, 2020 actions are the subject of challenges filed by the Sierra Club in Sierra Club, et al. v. FERC, Case No. 20-1512 (consolidated with No. 21-1040), D.C. Circuit Court of Appeals on December 22, 2020 and January 25, 2021, respectively. Briefing in Sierra Club, et al. v. FERC, Case No. 20-1512 (consolidated with No. 21-1040), D.C. Circuit Court of Appeals was completed in January 2022 and oral argument occurred on April 7, 2022 and the parties are awaiting a decision. If any of the challenges to the FERC's October 9, 2020 and December 17, 2020 orders are successful, it could result in the FERC's orders being vacated and/or additional agency proceedings (the outcome of which the Company cannot ensure) and cause a delay or further delay in the full in-service date for the MVP project (and consequent impacts relating to such delay), or otherwise adverse effects.

•Challenges to FERC Certificate, Court of Appeals for DC Circuit. Multiple parties have sought judicial review of the FERC's order issuing a certificate of public convenience and necessity to the MVP Joint Venture and/or the exercise by the MVP Joint Venture of eminent domain authority. On February 19, 2019, the DC Circuit issued an order rejecting multiple consolidated petitions seeking direct review of the FERC order under the NGA and certain challenges to the exercise by the MVP Joint Venture of eminent domain authority in Appalachian Voices, et al. v. FERC, et al., consolidated under Case No. 17-1271. No petitions for rehearing or petitions for rehearing en banc were filed by the April 5, 2019 deadline. The mandate was issued on April 17, 2019. Another group of parties filed a complaint in the U.S. District Court for the District of Columbia asserting that the FERC's order issuing certificates is unlawful on constitutional and other grounds in Bold Alliance, et al. v. FERC, et al., Case No. 17-1822. The district court plaintiffs sought declaratory relief as well as an injunction preventing the MVP Joint Venture from developing its project or exercising eminent domain authority. In December 2017 and January 2018, the FERC and the MVP Joint Venture, respectively, moved to dismiss the petitions for lack of subject matter jurisdiction. The court granted the motion and dismissed plaintiffs' complaint on September 28, 2018. On October 26, 2018, plaintiffs appealed the decision in Case No. 17-1822 to the DC Circuit in Bold Alliance, et al. v. FERC, et al., Case No. 18-5322. On December 3, 2018, the FERC, as appellee, filed a joint motion with the appellants to hold Case No. 18-5322 in abeyance pending completion of the appeals of the final agency orders related to the MVP certificate in consolidated Case No. 17-1271 and Atlantic Coast Pipeline’s (ACP) certificate. The MVP Joint Venture filed a motion to dismiss

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the case as to some of the plaintiffs. On February 15, 2019, the DC Circuit entered an order holding this appeal in abeyance pending rulings on the appeals from the ACP and MVP FERC proceedings. Although the members of the ACP project announced the cancellation of that project on July 5, 2020, ACP's proceeding remains pending. Case No. 18-5322 remains in abeyance. Similarly, another group of parties filed a complaint in the U.S. District Court for the District of Columbia in Bohon et al. v. FERC et al., Case No. 20-00006, asserting that the delegation of authority to FERC under the NGA violates the nondelegation doctrine and separation-of-powers principle of the U.S. Constitution. The MVP Joint Venture and the FERC filed motions to dismiss which were granted by the court. On July 6, 2020, the landowners filed a notice of appeal to the DC Circuit in Case No. 20-5203. On November 30, 2020, appellants asked the DC Circuit to overturn the decision of the lower court. Oral argument before the DC Circuit was scheduled for March 29, 2021, but the court cancelled and held oral argument in abeyance and directed the parties to file motions to govern future proceedings following a decision by the U.S. Supreme Court in PennEast Pipeline Co. v. New Jersey, Case No. 19-1039, which decision was published on June 29, 2021. Briefing in Bohon et al. v. FERC et al., Case No. 20-00006 on the significance of the PennEast Pipeline Co. opinion was completed on July 29, 2021. The DC Circuit issued an order on September 15, 2021 denying appellants' motion for summary reversal of the decision of the lower court and supplemental briefing was completed as of October 6, 2021. On June 21, 2022, the DC Circuit upheld the lower court's decision to dismiss the lawsuit. On September 15, 2022, the petitioners filed a petition for writ of certiorari with the Supreme Court of the United States (SCOTUS). Responses from the FERC and the MVP Joint Venture to the petition are due on November 18, 2022, after which SCOTUS will decide whether to grant certiorari. Due to the uncertainty regarding the timing of permitting and the outcome of legal challenges facing the MVP project, on August 25, 2020, the MVP Joint Venture filed a request with the FERC for and, on October 9, 2020, the FERC granted, an extension of time to complete the MVP project for an additional two years through October 13, 2022. On December 22, 2020, a challenge to the FERC’s action to grant an extension of time to complete the MVP project was filed in the DC Circuit in Sierra Club, et al. v. FERC, Case No. 20-1512 (consolidated with No. 21-1040, DC Circuit). Briefing in Sierra Club, et al. v. FERC, Case No. 20-1512 (consolidated with No. 21-1040, D.C. Circuit), was completed in January 2022 and oral argument occurred on April 7, 2022, and the parties are awaiting a decision. Separately, on June 24, 2022, citing litigation and regulatory matters, the MVP Joint Venture filed a request with the FERC for an extension of time to complete the MVP project through October 13, 2026, which was granted on August 23, 2022. Parties filed timely requests for rehearing with the FERC regarding such approval, which were denied by the FERC on October 24, 2022. Following the FERC's approval of the extension request through October 13, 2026, the MVP Joint Venture filed a letter with the DC Circuit to notify the court of this development, and to explain that FERC's extension order through October 13, 2026 effectively supersedes the original extension order being challenged in Sierra Club, et al. v. FERC, Case No. 20-1512 (consolidated with No. 21-1040, DC Circuit). The MVP Joint Venture filed an additional letter with the DC Circuit on October 20, 2022 to explain that the FERC's order extending the date to complete the MVP project through October 13, 2022 had expired on its own terms and that certain parties had sought rehearing of the FERC's August 23, 2022 order. If any of these challenges were successful, it could result in the MVP Joint Venture's certificate of public convenience and necessity being vacated and/or additional proceedings before the FERC, the outcome of which the Company cannot ensure, and cause a delay or further delay in the full in-service date for the MVP project (and consequent impacts related to such delay), or otherwise adverse effects.

•Appalachian Voices, et al. v. U.S. Dep’t of Interior, et al., Fourth Circuit Court of Appeals, Case No. 20-2159. In August 2019, Wild Virginia and certain other petitioners filed a petition in the Fourth Circuit in Wild Virginia et al. v. United States Department of the Interior; Case No. 19-1866, to challenge the MVP Joint Venture’s Biological Opinion and Incidental Take Statement issued by FWS which was approved in November 2017 (the Original BiOp). On October 11, 2019, the Fourth Circuit issued an order approving the petitioners’ requested stay of the Original BiOp and holding the litigation in abeyance until January 11, 2020. On October 15, 2019, the FERC issued an order requiring the MVP Joint Venture to cease all forward-construction progress (the FERC modified this order on October 9, 2020 and December 17, 2020, which the Sierra Club has appealed to the DC Circuit as discussed above under "Jefferson National Forest Crossing and Associated Authorizations"). On September 4, 2020, FWS issued the MVP Joint Venture a new Biological Opinion and Incidental Take Statement (the New BiOp) for the MVP project and the Fourth Circuit subsequently dismissed the litigation regarding the Original BiOp. On October 27, 2020, Appalachian Voices et al. filed a petition with the Fourth Circuit challenging the New BiOp and filed a request for an administrative stay of the New BiOp with FWS, which FWS subsequently denied. On November 2, 2020, the petitioners filed a motion to stay the New BiOp with the Fourth Circuit. On November 18, 2020, the Fourth Circuit issued an order denying the requested stay. The matter was fully briefed as of March 19, 2021. Oral argument occurred on October 29, 2021. On February 2, 2022, the Fourth Circuit vacated and remanded the New BiOp holding, in part, that the FWS did not adequately analyze the environmental context for species at issue. On March 11, 2022, the MVP Joint Venture requested that the Fourth Circuit review the February 2, 2022 decision en banc, which rehearing was denied by the Fourth Circuit on April 1, 2022. The vacatur of the New BiOp caused a delay in the then-targeted full in-service date

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for the MVP project (and consequent impacts relating to such delay). The Company cannot ensure whether and when a new BiOp will be received from the FWS and, if received, the result of any challenge to such BiOp.

MVP Southgate Matters

Sierra Club et al. v. FERC; Case No. 20-1427, DC Circuit. On June 18, 2020, the FERC issued an order granting a certificate of public convenience and necessity for the MVP Southgate project. However, the FERC, while authorizing the project, directed the Office of Energy Projects not to issue a notice to proceed with construction until necessary federal permits are received for the MVP project and the Director of the Office of Energy Projects lifts the stop-work order and authorizes the MVP Joint Venture to continue constructing the MVP project. Certain opposition parties subsequently requested rehearing of the certificate order. On August 20, 2020, the FERC issued an order denying requests for rehearing of that certificate order, and on September 17, 2020, the FERC issued an order addressing the arguments raised on rehearing. On October 9, 2020, Sierra Club, among other petitioners, filed an appeal of these orders with the DC Circuit. On June 28, 2022, the DC Circuit denied the petitioners' challenges to the certificate order and FERC's denial of rehearing. No petitions for rehearing or petitions for rehearing en banc were filed by the deadline. The mandate was issued on August 22, 2022.

Item 1A. Risk Factors

The Company is subject to a variety of significant risks in addition to the matters set forth under the forward-looking statements section in Item 2, "Management's Discussion and Analysis of Financial Condition and Results of Operations," of this Quarterly Report on Form 10-Q. The Company has identified a number of these risk factors in Part I, Item 1A, "Risk Factors," in its Annual Report on Form 10-K for the year ended December 31, 2021, which risk factors, as modified by this Quarterly Report on Form 10-Q, are incorporated herein by reference. These risk factors should be considered carefully in evaluating the Company’s risk profile.

There have been no material changes from the risk factors previously disclosed in the Company's Annual Report on Form 10-K for the year ended December 31, 2021, other than the risks described below.

Legal and Regulatory Risk

The regulatory approval process for the construction of new midstream assets is very challenging, has significantly increased costs and delayed targeted in-service dates, and decisions by regulatory and judicial authorities in pending or potential proceedings, particularly with respect to litigation in the Fourth Circuit, are likely to impact our or the MVP Joint Venture’s ability to obtain or maintain in effect all approvals and authorizations necessary to complete certain projects in a timely manner or at all or our ability to achieve the expected investment returns on the projects.

Certain of our projects require regulatory approval from federal, state and/or local authorities prior to and/or in the course of construction, including any extensions from, expansions of or additions to our and the MVP Joint Venture’s gathering, transmission and storage systems, as applicable. The approval process for certain projects has become increasingly slower and more difficult, due in part to federal, state and local concerns related to exploration and production, transmission and gathering activities and associated environmental impacts, and the increasingly negative public perception regarding the oil and gas industry, including major pipeline projects like the MVP and MVP Southgate. Further, regulatory approvals and authorizations, even when obtained, have increasingly been subject to judicial challenge by activists requesting that issued approvals and authorizations be stayed and vacated.

Accordingly, authorizations needed for our projects, including the MVP and MVP Southgate projects, may not be granted or, if granted, such authorizations may include burdensome or expensive conditions or may later be stayed or revoked or vacated, as has been the case with the MVP project which has been the subject to repeated, significant delays and cost increases because of legal and regulatory setbacks, particularly in respect of litigation in the Fourth Circuit.

In addition, significant delays in the regulatory approval process for projects, as well as stays and losses of critical authorizations and permits, including for the MVP and MVP Southgate projects, have significantly increased costs and delayed the then-targeted in-service dates for the projects, and further delays may cause similar adverse effects. Significant delays, such as that caused by the vacatur in January and February 2022 of certain approvals for the MVP project by the Fourth Circuit, and cost increases, as well as other adverse developments and uncertainties, in turn could adversely affect our ability, and, in the case of the MVP and MVP Southgate projects, the ability for the MVP Joint Venture and its owners, including us, to achieve expected investment returns, adversely affect our willingness or ability and/or that of our joint venture partners to continue to pursue projects, and/or further cause other-than-temporary declines in value to our equity investment in the MVP Joint Venture. The MVP and MVP Southgate projects in particular are subject to several agency actions and judicial challenges (and will likely become subject to further actions and challenges), as described in more detail in Part I, "Outlook" in "Item 2.

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Management's Discussion and Analysis of Financial Condition and Results of Operations" and Part II, "Item 1. Legal Proceedings" of this Quarterly Report on Form 10-Q.

There is no guarantee that the MVP Joint Venture will ultimately (or timely) receive all necessary authorizations or that such authorizations will be maintained in effect following challenge, or even after projects are placed in service. For example, the same panel of Fourth Circuit judges have appeared, and overruled permitting agencies, in numerous prior matters relating to the MVP Joint Venture and MVP-related permitting matters are again before such panel as of the filing of this Quarterly Report on Form 10-Q. Even if the MVP Joint Venture does succeed in resolving challenges or restoring or obtaining the necessary permits and other authorizations, this may not occur in a timely fashion and may adversely affect project costs.

We have experienced and may further experience increased opposition from activists in the form of lawsuits, intervention in regulatory proceedings and otherwise, which has been and/or may be focused on the few remaining portions of the MVP project and which have resulted in significant, adverse decisions in respect of project authorizations. Such opposition has made it increasingly difficult to complete the project and place it in service and, following any in-service, may also affect the ability to continue operating or effect extensions and/or expansions of the project. Further, such opposition and/or adverse court rulings and regulatory determinations may have the effect of increasing the timeframe on necessary agency action to address actual or perceived concerns in prior adverse court rulings, or may have the effect of increasing that risk that at a future point joint venture partners may elect not to continue to pursue or fund the project, which would, absent additional project sponsors, significantly imperil the ability to complete the project. See "We have entered into joint ventures, and may in the future enter into additional or modify existing joint ventures, that might restrict our operational and corporate flexibility and divert our management's time and our resources. In addition, we exercise no control over joint venture partners and it may be difficult or impossible for us to cause these joint ventures to take actions that we believe would be in our or the joint venture's best interest and these joint ventures are subject to many of the same operational risks to which we are subject." in Part I, "Item 1A. Risk Factors" in our Annual Report on Form 10-K for the year ended December 31, 2021. We also expect that other projects, such as the MVP Southgate, may be subject to similar heightened opposition. These and other challenges to our projects, particularly the MVP project, could adversely affect our business (including by increasing the possibility of investor activism), financial condition, results of operations, liquidity and ability to pay dividends to our shareholders.

As described in more detail in Part I, "Outlook" in "Item 2. Management's Discussion and Analysis of Financial Condition and Results of Operations", we believe that the best path to complete the MVP project in accordance with our previously-communicated targeted full in-service date and targeted total project cost is for the United States Congress to expeditiously pass, and there to be enacted, federal energy infrastructure permitting reform legislation that specifically requires the completion of the MVP project. As the durability of regulatory authorizations and overall permitting process applicable to infrastructure projects becomes in our view more uncertain, as evidenced by the perceived heightened judicial review in litigation related to the MVP project in the Fourth Circuit, we are, as of the date of this Quarterly Report on Form 10-Q, cognizant of continuing significant bipartisan support for federal energy infrastructure permitting reform legislation. However, due to the complexity of the United States legislative process, there is no guarantee that such legislation will be enacted, and if enacted will include requirements for the completion of the MVP project. If such legislation is not enacted, particularly in respect of the MVP project, our previously-communicated targeted full in-service date and targeted total project cost for the MVP project, along with our business, financial condition, results of operations, liquidity and ability to pay dividends to our shareholders, would likely be adversely affected.

Item 2. Unregistered Sales of Equity Securities and Use of Proceeds

Purchases of Equity Securities

The following table sets forth the Company's repurchases of equity securities registered under Section 12 of the Exchange Act that occurred during the three months ended September 30, 2022:

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Period	Total number of shares purchased (a)	Average price paid per share		Total number of shares purchased as part of publicly announced plans or programs	Approximate dollar value of shares that may yet be purchased under the plans or programs
July 2022 (July 1 - July 31)	—	$	—	—	$	—
August 2022 (August 1 - August 31)	—	—		—	—
September 2022 (September 1 - September 30)	—	—		—	—
Total	—	$	—	—	$	—

(a)Reflects shares withheld by the Company to pay taxes upon vesting of restricted stock.

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Item 6. Exhibits

Exhibit No.	Document Description	Method of Filing
10.01#	Letter Agreement, dated as of September 19, 2022, by and among EQM Gathering Opco, LLC, EQT Corporation, EQT Production Company, Rice Drilling B LLC, and EQT Energy, LLC.	Filed herewith as Exhibit 10.01.
31.1	Rule 13(a)-14(a) Certification of Principal Executive Officer.	Filed herewith as Exhibit 31.1.
31.2	Rule 13(a)-14(a) Certification of Principal Financial Officer.	Filed herewith as Exhibit 31.2.
32	Section 1350 Certification of Principal Executive Officer and Principal Financial Officer.	Furnished herewith as Exhibit 32.
101	Inline Interactive Data File.	Filed herewith as Exhibit 101.
104	Cover Page Interactive Data File (formatted as Inline XBRL and contained in Exhibit 101).	Filed herewith as Exhibit 104.

# Certain portions of the exhibits that are not material and is of the type Equitrans Midstream treats as confidential have been redacted pursuant to Item 601(b)(10)(iv) of Regulation S-K. Copies of the unredacted exhibits will be furnished to the SEC upon request.

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Signature

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

Equitrans Midstream Corporation
(Registrant)
By:	/s/ Kirk R. Oliver
	Kirk R. Oliver
	Senior Vice President and Chief Financial Officer

Date:  November 2, 2022

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EX-10.01

Exhibit 10.01

SPECIFIC TERMS IN THIS LETTER AGREEMENT HAVE BEEN REDACTED BECAUSE SUCH TERMS ARE BOTH NOT MATERIAL AND IS OF TYPE THAT EQUITRANS MIDSTREAM CORPORATION TREATS AS CONFIDENTIAL. THESE REDACTED TERMS HAVE BEEN MARKED IN THIS EXHIBIT AT THE APPROPRIATE PLACE WITH THREE ASTERISKS [***].

September 19, 2022

Rice Drilling B LLC

625 Liberty Avenue, Suite 1700

Pittsburgh, Pa 15222-3111

Attn: J.E.B. Bolen

RE:    Whipkey Interim Flow Letter Agreement

Dear Mr. Bolen:

Reference is made to (A) that certain Gathering Agreement dated November 25, 2015 (as amended, the “Whipkey Gathering Agreement”) by and between Rice Drilling B LLC (“RDB”) and EQM Gathering Opco, LLC, successor to EQM Poseidon Midstream LLC (“Gatherer”), and (B) that certain Gas Gathering and Compression Agreement dated as of February 26, 2020 by and among EQT Corporation, EQT Production Company, RDB and EQT Energy, LLC (collectively, “Producer”), and Gatherer, as the same was amended by that certain First Amendment to Gas Gathering and Compression Agreement dated August 26, 2020, that Second Amendment to Gas Gathering and Compression Agreement dated December 6, 2021 and that Third Amendment to Gas Gathering Compression Agreement dated December 21, 2021 between Producer and Gatherer (as amended, the “Trifecta Gathering Agreement”). All capitalized terms used but not otherwise defined in this letter agreement (“Letter Agreement”) shall have the meanings (if any) ascribed to them in the Whipkey Gathering Agreement and the Trifecta Gathering Agreement, as applicable.

WHEREAS, Gatherer currently receives Dedicated Gas into the Trifecta Gathering System under the Trifecta Gathering Agreement (the “Trifecta Gathering System”) produced from Producer’s Well Pads (“Trifecta Pads”) within the ASR AMI (“Trifecta Gas”) as depicted on Exhibit A attached hereto for delivery through the Pettit compressor station to the TETCO Rawhide Delivery Point (“Rawhide Delivery Point”);

WHEREAS, Gatherer currently receives Dedicated Gas into the Whipkey Gathering System under the Whipkey Gathering Agreement (the “WhipkeyGathering System”) produced from Producer’s Well Pads (“Whipkey Pads”) known as the Jacobs Well Pad and the Whipkey Well Pad (“Whipkey Gas”) as depicted on Exhibit A attached hereto for delivery through the Pettit compressor station to the Rawhide Delivery Point;

WHEREAS Gatherer has determined that gas flow at the Pettit compressor station must be curtailed for a period commencing on or about September 20, 2022 and continuing through approximately September 21, 2022 (the actual duration of such period being the “CurtailmentAvoidance Period”) and, accordingly, Gatherer will be unable to deliver Dedicated Gas from the Trifecta Pads and the Whipkey Pads to the Rawhide Delivery Point on the Trifecta Gathering System and Whipkey Gathering System during this Curtailment Avoidance Period;

WHEREAS, Producer has requested that Gatherer deliver Trifecta Gas to the TETCO Bambino Delivery Point (“Bambino Delivery Point”) during the Curtailment Avoidance Period via the Gather’s Whipkey Gathering System, subject to the Whipkey Gathering Agreement;

WHEREAS, Producer has requested that Gatherer deliver Whipkey Gas to the Bambino Delivery Point during the Curtailment Avoidance Period via the Gather’s Trifecta Gathering System, subject to the Trifecta Gathering Agreement;

WHEREAS, Gatherer is willing to deliver Trifecta Gas to the Bambino Delivery Point via the Whipkey Gathering System during the Curtailment Avoidance Period, subject to the terms and conditions hereof; and

WHEREAS, Gatherer is willing to deliver Whipkey Gas to the Bambino Delivery Point via the Trifecta Gathering System during the Curtailment Avoidance Period, subject to the terms and conditions hereof.

NOW, THEREFORE, Gatherer and Producer (collectively, “Parties” and each a “Party”), by execution of this Letter Agreement and in consideration of the mutual covenants contained herein, do hereby agree as follows:

1.Trifecta Gas; Fees.

(a)During the Curtailment Avoidance Period, Gatherer agrees to deliver Trifecta Gas received into the Trifecta Gathering System for delivery to the Bambino Delivery Point via the Whipkey Gathering System. The Parties acknowledge and agree that such Trifecta Gas shall be received into the Whipkey Gathering System at the Pettit Receipt Point (“Whipkey Receipt Point”) and such Trifecta Gas shall be delivered to the Bambino Delivery Point via the Mad Russian interconnect.

(b)In addition to [***], Producer agrees to pay Gatherer [***] for all Trifecta Gas volumes flowing from the Whipkey Receipt Point to the Bambino Delivery Point.

(c)During the Curtailment Avoidance Period, Gatherer agrees to deliver Whipkey Gas received into the Whipkey Gathering System for delivery to the Bambino Delivery Point via the Trifecta Gathering System. The Parties acknowledge and agree that such Whipkey Gas shall be received into the Trifecta Gathering System at the Mad Russian Receipt Point (“Trifecta Receipt Point”) and such Trifecta Gas shall be delivered to the Bambino Delivery Point.

(d)In addition to [***], Producer agrees to pay Gatherer [***] for all Whipkey Gas volumes flowing from the Trifecta Receipt Point to the Bambino Delivery Point.

(e)The Parties hereby acknowledge and agree that (i) Gatherer shall not be in breach of its obligations to receive Dedicated Gas under the Trifecta Gathering Agreement, and (ii) Producer shall not be in breach of its obligations to deliver Dedicated Gas under the Trifecta Gathering Agreement, in each case, only with respect to the Trifecta Gas and to the extent the Parties are in compliance with the terms hereof.

2

2.    Termination. Beginning on October 1, 2022, Producer shall have the right to terminate this Letter Agreement in its sole discretion and without cause, in any event following not less than [***] days’ written notice thereof to Gatherer.

3.    Miscellaneous. The terms and provisions of this Letter Agreement shall be binding on, and shall inure to the benefit of, the Parties and their respective successors and permitted assigns. This Letter Agreement may be executed in any number of counterparts, and each such counterpart hereof shall be deemed to be an original instrument, but all of such counterparts shall constitute for all purposes one agreement. Any signature hereto delivered by a Party by facsimile or other electronic transmission (including scanned documents delivered by email) shall be deemed an original signature hereto, and execution and delivery by such means shall be binding upon the Parties.

4.    Effect of Letter Agreement. The Parties acknowledge and agree that this Letter Agreement constitutes a written instrument executed by the Parties and fulfills the requirements of an amendment contemplated by (a) Section 18.8 of the Whipkey Gathering Agreement, and (b) to the extent and only to the extent of the Trifecta Gas, Section 18.7 of the Trifecta Gathering Agreement; provided, however, that except as expressly provided herein, the Parties hereby reserve all of their rights and remedies under the Trifecta Gathering Agreement and the Whipkey Gathering Agreement, and under applicable law and nothing herein will constitute a waiver, release, modification or alteration of the terms, conditions or covenants of the Trifecta Gathering Agreement and the Whipkey Gathering Agreement, the provisions of which are intended to remain in full force and effect in accordance with their respective terms, except to the extent expressly contemplated hereby. In the event of any conflict or inconsistencies between this Letter Agreement, the Trifecta Gathering Agreement and the Whipkey Gathering Agreement, the terms and conditions of this Letter Agreement shall prevail.

[SIGNATURE PAGE FOLLOWS]

3

IN WITNESS WHEREOF, the Parties have executed this Letter Agreement as of the date first written above

GATHERER:

EQM GATHERING OPCO, LLC,

a Delaware limited liability company

By:     /s/ John M. Quinn        

Name: John M. Quinn

Title:    VP Business Development & Commercial Services

PRODUCER:

RICE DRILLING B LLC,

a Delaware limited liability company

By:     /s/ J.E.B. Bolen        

Name:     J.E.B. Bolen

Title:     VP Operations Planning

EQT CORPORATION,

a Pennsylvania corporation

By:     /s/ David Khani        

Name:     David Khani

Title:     Chief Financial Officer

EQT ENERGY, LLC,

a Delaware limited liability company

By:     /s/ Keith Shoemaker        

Name:     Keith Shoemaker

Title:     SVP Commercial

EQT PRODUCTION COMPANY,

a Delaware limited liability company

By:     /s/ J.E.B. Bolen        

Name:     J.E.B. Bolen

Title:     VP Operations Planning

EXHIBIT A

Gathering System

[***]

EX-31.1

Exhibit 31.1

CERTIFICATION

I, Thomas F. Karam, certify that:

1. I have reviewed this Quarterly Report on Form 10-Q of Equitrans Midstream Corporation;

2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3.Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4.The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a.Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b.Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c.Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d.Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5.The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a. All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b.Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date:  November 2, 2022

/s/ Thomas F. Karam

Thomas F. Karam

Chief Executive Officer

EX-31.2

Exhibit 31.2

CERTIFICATION

I, Kirk R. Oliver, certify that:

1. I have reviewed this Quarterly Report on Form 10-Q of Equitrans Midstream Corporation;

2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3.Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4.The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a.Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b.Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c.Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d.Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5.The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a. All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b.Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: November 2, 2022

/s/ Kirk R. Oliver

Kirk R. Oliver

Senior Vice President and Chief Financial Officer

EX-32

Exhibit 32

CERTIFICATION

In connection with the QuarterlyReport of Equitrans Midstream Corporation on Form 10-Q for the period ended September 30, 2022, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), the undersigned certify pursuant to § 906 of the Sarbanes-Oxley Act of 2002, that:

(1)    The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2)    The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of Equitrans Midstream Corporation.

/s/ Thomas F. Karam	November 2, 2022
Thomas F. Karam Chief Executive Officer
/s/ Kirk R. Oliver	November 2, 2022
Kirk R. Oliver Senior Vice President and Chief Financial Officer

XML

Cover - shares shares in Thousands	9 Months Ended
	Sep. 30, 2022	Oct. 31, 2022
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2022
Document Transition Report	false
Entity File Number	001-38629
Entity Registrant Name	EQUITRANS MIDSTREAM CORPORATION
Entity Incorporation, State or Country Code	PA
Entity Tax Identification Number	83-0516635
Entity Address, Address Line One	2200 Energy Drive
Entity Address, City or Town	Canonsburg
Entity Address, State or Province	PA
Entity Address, Postal Zip Code	15317
City Area Code	724
Local Phone Number	271-7600
Title of 12(b) Security	Common Stock, no par value
Trading Symbol	ETRN
Security Exchange Name	NYSE
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Emerging Growth Company	false
Small Business Entity	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		432,781
Entity Central Index Key	0001747009
Amendment Flag	false
Current Fiscal Year End	--12-31
Document Fiscal Year Focus	2022
Document Fiscal Period Focus	Q3

XML

Statements of Consolidated Comprehensive Income (Unaudited) - USD ($) shares in Thousands, $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022		Sep. 30, 2021
Income Statement [Abstract]
Operating revenues		$ 331,751	$ 342,074	$ 1,002,508		$ 1,070,365
Operating expenses:
Operating and maintenance		35,297	38,743	100,573		111,004
Selling, general and administrative		33,348	33,560	90,483		104,536
Depreciation		68,572	66,021	203,272		203,954
Amortization of intangible assets		16,204	16,204	48,614		48,614
Impairment of long-lived assets and equity method investment		0	0	0		56,178
Total operating expenses		153,421	154,528	442,942		524,286
Operating income		178,330	187,546	559,566		546,079
Equity income	[1]	48	8,461	91	[2]	14,385	[2]
Impairment of equity method investment		(583,057)	0	(583,057)		0
Other income, net		893	21,199	21,414		38,251
Loss on extinguishment of debt		0	0	(24,937)		(41,025)
Net interest expense		(101,085)	(94,101)	(289,323)		(284,887)
(Loss) income before income taxes		(504,871)	123,105	(316,246)		272,803
Income tax (benefit) expense		(1,275)	32,200	8,636		65,180
Net (loss) income		(503,596)	90,905	(324,882)		207,623
Net income attributable to noncontrolling interests		2,932	3,557	10,655		10,479
Net (loss) income attributable to Equitrans Midstream		(506,528)	87,348	(335,537)		197,144
Preferred dividends		14,628	14,628	43,884		43,884
Net (loss) income attributable to Equitrans Midstream common shareholders		$ (521,156)	$ 72,720	$ (379,421)		$ 153,260
(Loss) earnings per share of common stock attributable to Equitrans Midstream common shareholders - basic (in dollars per share)		$ (1.20)	$ 0.17	$ (0.88)		$ 0.35
(Loss) earnings per share of common stock attributable to Equitrans Midstream common shareholders - diluted (in dollars per share)		$ (1.20)	$ 0.17	$ (0.88)		$ 0.35
Weighted average common shares outstanding - basic (in shares)		433,348	433,017	433,333		433,001
Weighted average common shares outstanding - diluted (in shares)		433,348	433,675	433,333		433,412
Statement of comprehensive income:
Net (loss) income		$ (503,596)	$ 90,905	$ (324,882)		$ 207,623
Other comprehensive income, net of tax:
Pension and other post-retirement benefits liability adjustment, net of tax expense of $10, $12, $34, and $36		36	34	104		103
Other comprehensive income		36	34	104		103
Comprehensive (loss) income		(503,560)	90,939	(324,778)		207,726
Less: Comprehensive income attributable to noncontrolling interests		2,932	3,557	10,655		10,479
Less: Comprehensive income attributable to preferred dividends		14,628	14,628	43,884		43,884
Comprehensive (loss) income attributable to Equitrans Midstream common shareholders		$ (521,120)	$ 72,754	$ (379,317)		$ 153,363
Dividends declared per common share (in dollars per share)		$ 0.15	$ 0.15	$ 0.45		$ 0.45

[1] Represents equity income from Mountain Valley Pipeline, LLC (the MVP Joint Venture). See Note 6.

[2] Represents equity income from the MVP Joint Venture. See Note 6.

XML

Statements of Consolidated Comprehensive Income (Unaudited) (Parenthetical) - USD ($) $ in Thousands	3 Months Ended						9 Months Ended
	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Sep. 30, 2022	Sep. 30, 2021
Income Statement [Abstract]
Pension and other post-retirement benefits liability adjustments, tax expense	$ 10	$ 12	$ 12	$ 12	$ 12	$ 12	$ 34	$ 36

XML

Statements of Consolidated Cash Flows (Unaudited) - USD ($) $ in Thousands		9 Months Ended
		Sep. 30, 2022	Sep. 30, 2021
Cash flows from operating activities:
Net income		$ (324,882)	$ 207,623
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation		203,272	203,954
Amortization of intangible assets		48,614	48,614
Deferred income taxes		8,101	61,267
Impairment of long-lived assets and equity method investment		583,057	56,178
Equity income	[1],[2]	(91)	(14,385)
Other income, net		(21,681)	(38,160)
Loss on extinguishment of debt		24,937	41,025
Non-cash long-term compensation expense		10,304	10,590
Changes in other assets and liabilities:
Accounts receivable		34,921	73,348
Accounts payable		2,255	(1,765)
Accrued interest		(57,375)	(48,893)
Deferred revenue		261,013	225,315
Other assets and other liabilities		(25,906)	(2,687)
Net cash provided by operating activities		746,539	822,024
Cash flows from investing activities:
Capital expenditures		(276,828)	(211,072)
Capital contributions to the MVP Joint Venture		(158,178)	(178,953)
Proceeds from sale of gathering assets		3,719	0
Principal payments received on the Preferred Interest		4,110	3,885
Net cash used in investing activities		(427,177)	(386,140)
Cash flows from financing activities:
Proceeds from revolving credit facility borrowings		284,500	457,500
Payments on revolving credit facility borrowings		(394,500)	(600,000)
Proceeds from the issuance of long-term debt		1,000,000	1,900,000
Debt discounts, debt issuance costs and credit facility arrangement fees		(19,880)	(29,904)
Payment for retirement of long-term debt		(1,021,459)	(1,936,250)
Dividends paid to holders of Equitrans Midstream Preferred Shares		(43,884)	(43,884)
Dividends paid to common shareholders		(194,733)	(194,624)
Distributions to noncontrolling interests		(16,000)	(2,500)
Net cash used in financing activities		(405,956)	(449,662)
Net change in cash and cash equivalents		(86,594)	(13,778)
Cash and cash equivalents at beginning of period		134,661	208,023
Cash and cash equivalents at end of period		48,067	194,245
Cash paid during the period for:
Interest, net of amount capitalized		339,285	326,456
Income taxes		$ 1,243	$ 0

[1] Represents equity income from Mountain Valley Pipeline, LLC (the MVP Joint Venture). See Note 6.

[2] Represents equity income from the MVP Joint Venture. See Note 6.

XML

Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands		Sep. 30, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents		$ 48,067	$ 134,661
Accounts receivable (net of allowance for credit losses of $2,508 and $2,696 as of September 30, 2022 and December 31, 2021, respectively)		230,932	252,301
Other current assets		53,109	59,867
Total current assets		332,108	446,829
Property, plant and equipment		9,271,014	9,004,602
Less: accumulated depreciation		(1,412,301)	(1,217,099)
Net property, plant and equipment		7,858,713	7,787,503
Investment in unconsolidated entity	[1]	784,384	1,239,039
Goodwill		486,698	486,698
Net intangible assets		603,157	651,771
Other assets		321,444	308,924
Total assets		10,386,504	10,920,764
Current liabilities:
Current portion of long-term debt		98,941	0
EQT Cash Option (as defined in Note 4)		195,820	0
Accounts payable		51,177	59,627
Capital contributions payable to the MVP Joint Venture		40,989	72,188
Accrued interest		94,534	151,909
Accrued liabilities		59,782	83,852
Total current liabilities		541,243	367,576
Long-term liabilities:
Revolving credit facility borrowings		395,000	505,000
Long-term debt		6,332,378	6,434,945
Contract liability		886,126	821,342
Regulatory and other long-term liabilities		108,272	99,333
Total liabilities		8,263,019	8,228,196
Mezzanine equity:
Equitrans Midstream Preferred Shares, 30,018 shares issued and outstanding as of September 30, 2022 and December 31, 2021		681,842	681,842
Shareholders' equity:
Common stock, no par value, 432,781 and 432,522 shares issued and outstanding as of September 30, 2022 and December 31, 2021, respectively		3,969,591	3,957,756
Retained deficit		(3,003,848)	(2,428,171)
Accumulated other comprehensive loss		(1,950)	(2,054)
Total common shareholders' equity		963,793	1,527,531
Noncontrolling interests		477,850	483,195
Total shareholders' equity		1,441,643	2,010,726
Total liabilities, mezzanine equity and shareholders' equity		$ 10,386,504	$ 10,920,764

[1] Represents investment in the MVP Joint Venture. See Note 6.

XML

Consolidated Balance Sheets (Unaudited) (Parenthetical) - USD ($) shares in Thousands, $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Statement of Financial Position [Abstract]
Accounts receivable, for doubtful accounts	$ 2,508	$ 2,696
Mezzanine equity, preferred shares outstanding (in shares)	30,018	30,018
Mezzanine equity, preferred shares issued (in shares)	30,018	30,018
Common stock, shares issued (in shares)	432,781	432,522
Common stock, shares outstanding (in shares)	432,781	432,522

XML

Statements of Consolidated Shareholders' Equity and Mezzanine Equity (Unaudited) - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock	Retained Deficit	Accumulated Other Comprehensive Loss	Noncontrolling Interests
Beginning balance (in shares) at Dec. 31, 2020		432,470
Beginning balance at Dec. 31, 2020	$ 3,681,272	$ 3,941,295	$ (728,959)	$ (2,229)	$ 471,165
Increase (Decrease) in Partners' Capital
Net (loss) income	61,969		58,055		3,914
Pension and other post-retirement benefits liability adjustment, net of tax expense	34			34
Dividends on common shares	(64,984)		(64,984)
Share-based compensation plans, net (in shares)		28
Share-based compensation plans, net	4,662	$ 4,662
Distributions paid to noncontrolling interests	(2,500)				(2,500)
Ending balance (in shares) at Mar. 31, 2021		432,498
Ending balance at Mar. 31, 2021	3,680,453	$ 3,945,957	(735,888)	(2,195)	472,579
Mezzanine Equity, beginning balance at Dec. 31, 2020	681,842
Mezzanine Equity
Mezzanine Equity, Net income	14,628
Dividends paid to holders of Equitrans Midstream Preferred Shares ($0.4873 per share)	(14,628)
Mezzanine Equity, ending balance at Mar. 31, 2021	681,842
Increase (Decrease) in Partners' Capital
Net (loss) income	25,493		22,485		3,008
Pension and other post-retirement benefits liability adjustment, net of tax expense	35			35
Dividends on common shares	(64,750)		(64,750)
Share-based compensation plans, net (in shares)		7
Share-based compensation plans, net	3,635	$ 3,635
Distributions paid to noncontrolling interests	0				0
Ending balance (in shares) at Jun. 30, 2021		432,505
Ending balance at Jun. 30, 2021	3,644,866	$ 3,949,592	(778,153)	(2,160)	475,587
Mezzanine Equity
Mezzanine Equity, Net income	14,628
Dividends paid to holders of Equitrans Midstream Preferred Shares ($0.4873 per share)	(14,628)
Mezzanine Equity, ending balance at Jun. 30, 2021	681,842
Increase (Decrease) in Partners' Capital
Net (loss) income	76,277		72,720		3,557
Pension and other post-retirement benefits liability adjustment, net of tax expense	34			34
Dividends on common shares	(65,336)		(65,336)
Share-based compensation plans, net (in shares)		17
Share-based compensation plans, net	3,304	$ 3,304
Ending balance (in shares) at Sep. 30, 2021		432,522
Ending balance at Sep. 30, 2021	3,659,145	$ 3,952,896	(770,769)	(2,126)	479,144
Mezzanine Equity
Mezzanine Equity, Net income	14,628
Dividends paid to holders of Equitrans Midstream Preferred Shares ($0.4873 per share)	(14,628)
Mezzanine Equity, ending balance at Sep. 30, 2021	$ 681,842
Beginning balance (in shares) at Dec. 31, 2021	432,522	432,522
Beginning balance at Dec. 31, 2021	$ 2,010,726	$ 3,957,756	(2,428,171)	(2,054)	483,195
Increase (Decrease) in Partners' Capital
Net (loss) income	90,280		86,505		3,775
Pension and other post-retirement benefits liability adjustment, net of tax expense	34			34
Dividends on common shares	(65,584)		(65,584)
Share-based compensation plans, net (in shares)		155
Share-based compensation plans, net	2,832	$ 2,832
Ending balance (in shares) at Mar. 31, 2022		432,677
Ending balance at Mar. 31, 2022	2,038,288	$ 3,960,588	(2,407,250)	(2,020)	486,970
Mezzanine Equity, beginning balance at Dec. 31, 2021	681,842
Mezzanine Equity
Mezzanine Equity, Net income	14,628
Dividends paid to holders of Equitrans Midstream Preferred Shares ($0.4873 per share)	(14,628)
Mezzanine Equity, ending balance at Mar. 31, 2022	681,842
Increase (Decrease) in Partners' Capital
Net (loss) income	59,178		55,230		3,948
Pension and other post-retirement benefits liability adjustment, net of tax expense	34			34
Dividends on common shares	(64,991)		(64,991)
Share-based compensation plans, net (in shares)		104
Share-based compensation plans, net	4,470	$ 4,470
Ending balance (in shares) at Jun. 30, 2022		432,781
Ending balance at Jun. 30, 2022	2,036,979	$ 3,965,058	(2,417,011)	(1,986)	490,918
Mezzanine Equity
Mezzanine Equity, Net income	14,628
Dividends paid to holders of Equitrans Midstream Preferred Shares ($0.4873 per share)	(14,628)
Mezzanine Equity, ending balance at Jun. 30, 2022	681,842
Increase (Decrease) in Partners' Capital
Net (loss) income	(518,224)		(521,156)		2,932
Pension and other post-retirement benefits liability adjustment, net of tax expense	36			36
Dividends on common shares	(65,681)		(65,681)
Share-based compensation plans, net (in shares)		0
Share-based compensation plans, net	4,533	$ 4,533
Distributions paid to noncontrolling interests	$ (16,000)				(16,000)
Ending balance (in shares) at Sep. 30, 2022	432,781	432,781
Ending balance at Sep. 30, 2022	$ 1,441,643	$ 3,969,591	$ (3,003,848)	$ (1,950)	$ 477,850
Mezzanine Equity
Mezzanine Equity, Net income	14,628
Dividends paid to holders of Equitrans Midstream Preferred Shares ($0.4873 per share)	(14,628)
Mezzanine Equity, ending balance at Sep. 30, 2022	$ 681,842

XML

Statements of Consolidated Shareholders' Equity and Mezzanine Equity (Unaudited) (Parenthetical) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021
Pension and other post-retirement benefits liability adjustments, tax expense	$ 10	$ 12	$ 12	$ 12	$ 12	$ 12
Dividends (in dollars per share)	$ 0.15	$ 0.15	$ 0.15	$ 0.15	$ 0.15	$ 0.15
EQM Midstream Partners, LP
Cash distributions declared (in dollars per unit)	$ 0.4873	$ 0.4873	$ 0.4873		$ 0.4873	$ 0.4873
EQM Midstream Partners, LP | Series A Preferred Units
Cash distributions declared (in dollars per unit)				$ 0.4873

XML

Financial Statements

9 Months Ended

Sep. 30, 2022

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Financial Statements

Financial Statements

Nature of Business. The Company provides midstream services to its customers in Pennsylvania, West Virginia and Ohio through its three primary assets: the gathering system, which includes predominantly dry gas gathering systems of high-pressure gathering lines; the transmission system, which includes FERC-regulated interstate pipelines and storage systems; and the water network, which primarily consists of water pipelines and other facilities that support well completion and produced water handling activities.

Basis of Presentation. References in these financial statements to Equitrans Midstream or the Company refer collectively to Equitrans Midstream Corporation and its consolidated subsidiaries for all periods presented, unless otherwise indicated.

The accompanying unaudited consolidated financial statements have been prepared in accordance with generally accepted accounting principles in the United States (GAAP) for interim financial information and with the requirements of Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by GAAP for complete financial statements. In the opinion of management, these unaudited consolidated financial statements include all adjustments (consisting of only normal, recurring adjustments, unless otherwise disclosed in this Quarterly Report on Form 10-Q) necessary for a fair presentation of the financial position of the Company as of September 30, 2022, the results of its operations and equity for the three and nine months ended September 30, 2022 and 2021 and its cash flows for the nine months ended September 30, 2022 and 2021. The consolidated balance sheet at December 31, 2021 has been derived from the audited financial statements at that date, but does not include all of the information and notes required by GAAP for complete financial statements. This Quarterly Report on Form 10-Q should be read in conjunction with the Company's Annual Report on Form 10-K for the year ended December 31, 2021, which includes all disclosures required by GAAP.

Due to, among other things, the seasonal nature of the Company's utility customer contracts, as well as producers’ well completion activities and varying needs for fresh and produced water (which are primarily driven by horizontal lateral lengths and the number of completion stages per well), the interim statements for the three and nine months ended September 30, 2022 are not necessarily indicative of the results that may be expected for the year ending December 31, 2022.

For further information, refer to the Company's annual consolidated financial statements and related notes in the Company's Annual Report on Form 10-K for the year ended December 31, 2021, as well as Part I, "Item 2. Management's Discussion and Analysis of Financial Condition and Results of Operations" contained herein.

Recently Issued Accounting Standards.

In March 2020, the FASB issued ASU 2020-04, Reference Rate Reform (Topic 848), which provides practical expedients for contract modifications and certain hedging relationships associated with the transition from reference rates that are expected to be discontinued. This guidance is applicable to the calculation of each dividend following March 31, 2024 for the Equitrans Midstream Preferred Shares pursuant to the Company's Second Amended and Restated Articles of Incorporation, as well as any Company contracts that use the London Inter-Bank Offered Rate as a reference rate. The ASU was effective immediately but is only available through December 31, 2022. In April 2022, the FASB proposed deferring the sunset date for applying reference rate reform relief in Topic 848 to December 31, 2024. The Company is currently evaluating the potential impact of adopting this standard on its financial statements and related disclosures.

In August 2020, the FASB issued ASU 2020-06, Accounting for Convertible Instruments and Contracts in an Entity’s Own Equity, which simplifies the accounting for convertible debt and convertible preferred stock by removing the requirements to separately present certain conversion features in equity. In addition, the amendments in the ASU 2020-06 also simplify the guidance in ASC Subtopic 815-40, Derivatives and Hedging: Contracts in Entity’s Own Equity, by removing certain criteria that must be satisfied in order to classify a contract as equity. Finally, the amendments revise the guidance on calculating earnings per share, requiring use of the if-converted method for all convertible instruments and rescinding an entity’s ability to rebut the presumption of share settlement for instruments that may be settled in cash or other assets. The amendments were effective for fiscal years beginning after December 15, 2021. The Company adopted this standard on January 1, 2022 with no significant effect on the Company's financial statements or related disclosures.

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Impairments of Long-Lived Assets

9 Months Ended

Sep. 30, 2022

Property, Plant and Equipment [Abstract]

Impairments of Long-Lived Assets

Impairment of Long-Lived Assets Long-Lived Assets. As of June 30, 2021, the Company performed a recoverability test of the Equitrans Water Services (OH) LLC (Ohio Water) long-lived assets due to decreased producer activity in Ohio within the Company's water services segment. As a result of the recoverability test, management determined that the carrying value of the Ohio Water long-lived assets (which

consisted of water pipelines, impoundment facilities, pumping stations, take point facilities and measurement facilities that support well completion activities and collect flowback and produced water for recycling or disposal in Ohio) was not recoverable under ASC 360, Impairment Testing: Long-Lived Assets Classified as Held and Used. The Company estimated the fair value of the Ohio Water asset group and determined that the fair value was less than the assets’ carrying value, which resulted in impairment charges of approximately $56.2 million to the Ohio Water assets within the Company's Water segment. The non-cash impairment charge was recognized during the second quarter of 2021 and is included in the impairment of long-lived assets line on the statements of consolidated comprehensive income.

Equity Method Investment. In connection with its assessment as of September 30, 2022, the Company identified an increased risk of one or more permitting delays resulting primarily from recent legal developments and regulatory uncertainties, as well as macroeconomic pressures primarily due to increased interest rates impacting the discount rate used within the estimated fair value of its investment in the MVP Joint Venture. The Company considers these factors to be indicators of a decline in value. As such, the Company evaluated if the carrying value of its equity method investment in the MVP Joint Venture as of September 30, 2022 exceeded the fair value and, if so, whether that decline in value was other-than-temporary.

The Company estimated the fair value of its investment in the MVP Joint Venture using an income approach that primarily considered revised probability-weighted scenarios of discounted future net cash flows based on the estimates of total project costs and revenues. These scenarios reflected assumptions and judgments regarding potential delays and cost increases resulting from various ongoing legal and regulatory matters affecting the MVP and MVP Southgate projects. The Company’s analysis also took into account, among other things, probability-weighted growth expectations from additional compression expansion opportunities. The Company generally used an after-tax discount rate of 7.5% in the analysis derived based on a market participant approach. The Company considered scenarios under which ongoing or new legal and regulatory matters further delay the completion and increase the total costs of the project; all required legal and regulatory approvals and authorizations and certain compression expansion opportunities are realized; and the MVP project is canceled. As a result of the assessment, the Company recognized a pre-tax impairment charge of approximately $583 million that reduced the carrying value of its equity investment in the MVP Joint Venture to approximately $784 million as of September 30, 2022. Given the significant assumptions and judgments used in estimating the fair value of the Company's investment in the MVP Joint Venture, the fair value of the investment in the MVP Joint Venture represents a Level 3 measurement.

There is risk that the Company’s equity investment in the MVP Joint Venture may be further impaired in the future. There are ongoing (and may be future) legal and regulatory matters related to the MVP project, any of which could affect the ability to complete or operate the project, as well as legal and regulatory matters related to the MVP Southgate project that must be resolved in connection with the project. Assumptions and estimates utilized in assessing the fair value of the Company’s investment in the MVP Joint Venture may change depending on the nature or timing of resolutions to the legal and regulatory matters or based on other relevant developments. Adverse changes in circumstances relevant to the likelihood of project or expansion completion could prompt the Company, in future assessments, to apply a lower probability of project or expansion completion and such changes in assumptions or estimates (including probability) could have a material adverse effect on the fair value of the Company's investment in the MVP Joint Venture and potentially result in an additional impairment, which could have a material adverse effect on the Company's results of operations and financial position.

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Financial Information by Business Segment

9 Months Ended

Sep. 30, 2022

Segment Reporting [Abstract]

Financial Information by Business Segment

Financial Information by Business Segment

The Company reports its operations in three segments that reflect its three lines of business of Gathering, Transmission and Water, which reflects the manner in which management evaluates the business for making operating decisions and assessing performance.

	Three Months Ended September 30,				Nine Months Ended September 30,
	2022		2021		2022		2021
	(Thousands)
Revenues from customers:
Gathering	$	227,180	$	243,816	$	672,284	$	733,844
Transmission	91,557		90,886		293,430		295,203
Water	13,014		7,372		36,794		41,318
Total operating revenues	$	331,751	$	342,074	$	1,002,508	$	1,070,365
Operating income (loss):
Gathering	$	112,279	$	132,582	$	347,464	$	399,309
Transmission	64,077		59,703		209,480		203,153
Water (a)	2,342		(4,414)		3,606		(55,577)
Headquarters (b)	(368)		(325)		(984)		(806)
Total operating income	$	178,330	$	187,546	$	559,566	$	546,079
Reconciliation of operating income to net (loss) income:
Equity income (c)	$	48	$	8,461	$	91	$	14,385
Impairment of equity method investment (c)	(583,057)		—		(583,057)		—
Other income, net (d)	893		21,199		21,414		38,251
Loss on extinguishment of debt	—		—		(24,937)		(41,025)
Net interest expense	(101,085)		(94,101)		(289,323)		(284,887)
Income tax (benefit) expense	(1,275)		32,200		8,636		65,180
Net (loss) income	$	(503,596)	$	90,905	$	(324,882)	$	207,623

(a)Impairment of long-lived assets of $56.2 million for the nine months ended September 30, 2021 was included in Water operating income (loss). See Note 2 for further information.

(b)Includes certain unallocated corporate expenses.

(c)Equity income and impairment of equity method investment are included in the Transmission segment.

(d)Includes unrealized (losses) gains on derivative instruments and gain on sale of gathering assets recorded in the Gathering segment.

	September 30, 2022		December 31, 2021
	(Thousands)
Segment assets:
Gathering	$	7,647,237	$	7,638,877
Transmission (a)	2,288,144		2,769,097
Water	196,004		151,151
Total operating segments	10,131,385		10,559,125
Headquarters, including cash	255,119		361,639
Total assets	$	10,386,504	$	10,920,764

(a)The equity investment in the MVP Joint Venture is included in the Transmission segment.

	Three Months Ended September 30,				Nine Months Ended September 30,
	2022		2021		2022		2021
	(Thousands)
Depreciation:
Gathering	$	49,125	$	47,441	$	145,953	$	140,899
Transmission	13,909		13,835		41,707		41,461
Water	5,162		4,364		14,483		20,740
Headquarters	376		381		1,129		854
Total	$	68,572	$	66,021	$	203,272	$	203,954
Capital expenditures:
Gathering (a)	$	73,589	$	62,916	$	195,925	$	170,709
Transmission (b)	12,429		5,755		22,994		17,050
Water	17,041		10,803		49,132		20,430
Headquarters	—		83		13		1,455
Total (c)	$	103,059	$	79,557	$	268,064	$	209,644

(a)Includes capital expenditures related to the noncontrolling interest in Eureka Midstream Holdings, LLC (Eureka Midstream) of approximately $5.9 million and $17.6 million for the three and nine months ended September 30, 2022, respectively, and approximately $4.8 million and $10.6 million for the three and nine months ended September 30, 2021, respectively.

(b)Transmission capital expenditures do not include aggregate capital contributions made to the MVP Joint Venture for the MVP and MVP Southgate projects of approximately $46.4 million and $158.2 million for the three and nine months ended September 30, 2022, respectively, and approximately $94.3 million and $179.0 million for the three and nine months ended September 30, 2021, respectively.

(c)The Company accrues capital expenditures when the work has been completed but the associated bills have not yet been paid. Accrued capital expenditures are excluded from the statements of consolidated cash flows until they are paid. The net impact of non-cash capital expenditures, including the effect of accrued capital expenditures, transfers to/from inventory as assets are completed/assigned to a project and capitalized share-based compensation costs, was $10.7 million and $8.8 million for the three and nine months ended September 30, 2022, respectively, and $1.2 million and $1.4 million for the three and nine months ended September 30, 2021, respectively.

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Revenue from Contracts with Customers

9 Months Ended

Sep. 30, 2022

Revenue from Contract with Customer [Abstract]

Revenue from Contract with Customers

Revenue from Contracts with Customers

For the three and nine months ended September 30, 2022 and 2021, substantially all revenues recognized on the Company's statements of consolidated comprehensive income are from contracts with customers. As of September 30, 2022 and December 31, 2021, all receivables recorded on the Company's consolidated balance sheets represented performance obligations that have been satisfied and for which an unconditional right to consideration exists.

Summary of disaggregated revenues. The tables below provide disaggregated revenue information by business segment.

	Three Months Ended September 30, 2022
	Gathering		Transmission		Water		Total
	(Thousands)
Firm reservation fee revenues (a)	$	144,730	$	84,584	$	9,375	$	238,689
Volumetric-based fee revenues	82,450		6,973		3,639		93,062
Total operating revenues	$	227,180	$	91,557	$	13,014	$	331,751
	Three Months Ended September 30, 2021
	Gathering		Transmission		Water		Total
	(Thousands)
Firm reservation fee revenues (a)	$	151,004	$	84,053	$	1,061	$	236,118
Volumetric-based fee revenues	92,812		6,833		6,311		105,956
Total operating revenues	$	243,816	$	90,886	$	7,372	$	342,074

	Nine Months Ended September 30, 2022
	Gathering		Transmission		Water		Total
	(Thousands)
Firm reservation fee revenues (a)	$	415,932	$	272,129	$	24,502	$	712,563
Volumetric-based fee revenues	256,352		21,301		12,292		289,945
Total operating revenues	$	672,284	$	293,430	$	36,794	$	1,002,508
	Nine Months Ended September 30, 2021
	Gathering		Transmission		Water		Total
	(Thousands)
Firm reservation fee revenues (a)	$	448,556	$	269,239	$	3,834	$	721,629
Volumetric-based fee revenues	285,288		25,964		37,484		348,736
Total operating revenues	$	733,844	$	295,203	$	41,318	$	1,070,365

(a) Firm reservation fee revenues associated with Gathering included MVC unbilled revenues of approximately $8.5 million and $17.4 million for the three and nine months ended September 30, 2022, respectively. Firm reservation fee revenues associated with Gathering and Water included MVC unbilled revenues of approximately $5.5 million and $0.5 million, respectively, for the three months ended September 30, 2021, and approximately $12.4 million and $1.5 million, for the nine months ended September 30, 2021, respectively.

Contract assets. The Company's contract assets related to the Company's future MVC deficiency payments are generally expected to be collected within the next twelve months and are primarily included in other current assets in the Company's consolidated balance sheets until such time as the MVC deficiency payments are invoiced to the customer.

The following table presents changes in the Company's unbilled revenue balance during the nine months ended September 30, 2022 and 2021:

	Unbilled Revenue
	2022		2021
	(Thousands)
Balance as of beginning of period	$	16,772	$	18,618
Revenue recognized in excess of amounts invoiced (a)	19,436		21,908
Minimum volume commitments invoiced (b)	(14,884)		(23,373)
Amortization (c)	(334)		(78)
Balance as of end of period	$	20,990	$	17,075

(a)Primarily includes revenues associated with MVCs that are generally included in firm reservation fee revenues within the Gathering and Water segments. During the nine months ended September 30, 2021, also includes other contractual commitments of approximately $6.4 million.

(b)Unbilled revenues are transferred to accounts receivable once the Company has an unconditional right to consideration from the customer.

(c)Amortization of capitalized contract costs paid to customers over the expected life of the agreement.

Contract liabilities. The Company's contract liabilities consisted of deferred revenue primarily associated with the EQT Global GGA. Contract liabilities are classified as current or non-current according to when such amounts are expected to be recognized. As of September 30, 2022, total contract liabilities were $887.6 million, of which $1.5 million was classified as current and recorded in accrued liabilities and $886.1 million was classified as non-current and recorded in contract liability on the Company's consolidated balance sheet. As of December 31, 2021, total contract liabilities were $822.4 million, of which $1.1 million was classified as current and recorded in accrued liabilities and $821.3 million was classified as non-current and recorded in contract liability on the Company's consolidated balance sheet.

On July 8, 2022, the Company received written notice from EQT, pursuant to the EQT Global GGA, of EQT’s irrevocable election under the agreement to forgo up to approximately $145 million of potential gathering fee relief in the first twelve-month period beginning the first day of the quarter in which the MVP full in-service date occurs and up to approximately $90 million of potential gathering fee relief in the second such twelve-month period in exchange for a cash payment from the

Company to EQT in the amount of approximately $195.8 million (the EQT Cash Option). As a result of EQT’s election to forgo potential rate relief in exchange for the cash option payment, the Company recorded a reduction to the contract liability of approximately $195.8 million and an increase to the EQT Cash Option liability on the consolidated balance sheets as of September 30, 2022. The Company utilized borrowings under the Amended EQM Credit Facility to effect such payment and the payment was made to EQT on October 4, 2022.

The following table presents changes in the Company's contract liability balances during the nine months ended September 30, 2022 and 2021:

	Contract Liability
	2022		2021
	(Thousands)
Balance as of beginning of period	$	822,416	$	398,750
Amounts recorded during the period (a)	266,792		225,583
Change in estimated variable consideration (b)	(4,837)		—
Amounts transferred during the period (c)	(942)		(268)
EQT Cash Option in lieu of a portion of rate relief	(195,820)		—
Balance as of end of period	$	887,609	$	624,065

(a)Includes deferred billed revenue during the nine months ended September 30, 2022 and 2021 primarily associated with the EQT Global GGA.

(b)Change in estimated variable consideration represents the decrease in total deferred revenue required for gathering MVC revenue with a declining rate structure, resulting from the EQT Cash Option election that required total estimated gathering consideration to be increased.

(c)Deferred revenues are recognized as revenue upon satisfaction of the Company's performance obligation to the customer.

Summary of remaining performance obligations. The following table summarizes the estimated transaction price allocated to the Company's remaining performance obligations under all contracts with firm reservation fees, MVCs and/or ARCs as of September 30, 2022 that the Company will invoice or transfer from contract liabilities and recognize in future periods.

		2022(a)		2023		2024		2025		2026		Thereafter		Total
	(Thousands)
Gathering firm reservation fees		$	22,308	$	108,000	$	170,060	$	175,509	$	166,594	$	1,865,013	$	2,507,484
Gathering revenues supported by MVCs		112,587		461,028		431,793		450,995		462,291		3,499,289		5,417,983
Transmission firm reservation fees		98,135		366,701		382,971		366,757		360,929		3,316,261		4,891,754
Water revenues supported by ARCs		9,375		37,500		37,500		37,500		37,500		193,750		353,125
Total (b)		$	242,405	$	973,229	$	1,022,324	$	1,030,761	$	1,027,314	$	8,874,313	$	13,170,346

(a)    October 1, 2022 through December 31, 2022.

(b)    Includes assumptions regarding timing for placing certain projects in-service. Such assumptions may not be realized and delays in the in-service dates for projects have substantially altered, and additional delays may further substantially alter, the remaining performance obligations for certain contracts with firm reservation fees, MVCs and/or ARCs. The MVP Joint Venture is accounted for as an equity investment and those amounts are not included in the table above.

Based on total projected contractual revenues, including projected contractual revenues from future capacity expected from expansion projects that are not yet fully constructed or not yet fully in-service for which the Company has executed firm contracts, the Company's firm gathering contracts and firm transmission and storage contracts had weighted average remaining terms of approximately 14 years and 12 years, respectively, as of September 30, 2022.

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Related Party Transactions

9 Months Ended

Sep. 30, 2022

Related Party Transactions [Abstract]

Related Party Transactions

Related Party Transactions

In the ordinary course of business, the Company engages in transactions with EQT and its affiliates, including but not limited to, entering into new or amending existing gathering agreements, transportation service and precedent agreements, storage agreements and/or water services agreements, however, based solely on information reported by EQT in a Schedule 13G/A filed with the SEC on April 28, 2022, EQT was no longer a related party of the Company as of April 22, 2022 and the amounts disclosed related to EQT below are accordingly presented with respect to the full 2021 periods during which EQT was considered a related party.

The following table summarizes the Company's related party transactions in the below-described portions of 2021.

	Three Months Ended September 30,		Nine Months Ended September 30,
	2021		2021
	(Thousands)
Operating revenues	$	220,781	$	668,837
Interest income from the Preferred Interest	1,433		4,353
Principal Payments received on the Preferred Interest	1,313		3,885

The following table summarizes the Company's related party receivables and payables.

	December 31, 2021
	(Thousands)
Accounts receivable	$	190,410
Contract asset	2,246
Preferred Interest	99,838
Contract liability	818,658

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Investments in Unconsolidated Entity

9 Months Ended

Sep. 30, 2022

Equity Method Investments and Joint Ventures [Abstract]

Investments in Unconsolidated Entity

Investment in Unconsolidated Entity

The MVP Joint Venture is constructing the MVP, an estimated 300-mile natural gas interstate pipeline that is designed to span from northern West Virginia to southern Virginia. The Company will operate the MVP and owned a 47.1% interest in the MVP project as of September 30, 2022. On November 4, 2019, Consolidated Edison, Inc. (Con Edison) exercised an option to cap its investment in the construction of the MVP project at approximately $530 million (excluding AFUDC). The Company and NextEra Energy, Inc. are obligated to, and RGC Resources, Inc., another member of the MVP Joint Venture owning an interest in the MVP project, has opted to, fund the shortfall in Con Edison's capital contributions, on a pro rata basis. Such funding by the Company and funding by other members has and will correspondingly increase the Company's and such other funding members' respective interests in the MVP project and decrease Con Edison's interest in the MVP project. As a result, based on the Company's targeted cost for the project of approximately $6.6 billion (excluding AFUDC), the Company's equity ownership in the MVP project will progressively increase from approximately 47.1% to approximately 48.1%. The MVP Joint Venture is a variable interest entity because it has insufficient equity to finance its activities during the construction stage of the project. The Company is not the primary beneficiary of the MVP Joint Venture because the Company does not have the power to direct the activities that most significantly affect the MVP Joint Venture's economic performance. Certain business decisions, such as decisions to make distributions of cash, require a greater than 66 2/3% ownership interest approval, and no one member owns more than a 66 2/3% interest.

In April 2018, the MVP Joint Venture announced the MVP Southgate project, which is a proposed 75-mile interstate pipeline that was approved by the FERC to extend from the MVP at Pittsylvania County, Virginia to new delivery points in Rockingham and Alamance Counties, North Carolina. The Company is expected to operate the MVP Southgate pipeline and owned a 47.2% interest in the MVP Southgate project as of September 30, 2022. The MVP Joint Venture continues to evaluate the MVP Southgate project, including engaging in discussions with the project shipper, Dominion Energy North Carolina, regarding options with respect to the project, including likely refining the project’s design, scope and timing in lieu of pursuing the project as originally contemplated. Dominion Energy North Carolina’s obligations under the precedent agreement in support of the original project are subject to certain conditions, including that the MVP Joint Venture would have completed construction of the project facilities by June 1, 2022, which deadline is subject to extension by virtue of previously declared events of force

majeure. The Company is unable to predict the results of the discussions between the MVP Joint Venture and Dominion Energy North Carolina, including any potential modifications to the project, or ultimate undertaking or completion of the project.

In the fourth quarter of 2021, the Company incurred an other-than-temporary decline in value in its equity investment in the MVP Joint Venture, primarily due to unfavorable decisions by the U.S. Fourth Circuit Court of Appeals that vacated and remanded key authorizations, that resulted in a pre-tax impairment charge of $1.9 billion. As a result of the impairment, the carrying value of the Company's equity investment in the MVP Joint Venture was reduced to $1.2 billion as of December 31, 2021. During the third quarter of 2022, the Company incurred an additional other-than-temporary decline in value in its equity investment in the MVP Joint Venture primarily due to increased uncertainty in the permitting process for the MVP project as a result of recent legal developments and regulatory uncertainties, as well as macroeconomic pressures primarily due to increased interest rates impacting the discount rate. As a result of the impairment, the carrying value of the Company's equity investment in the MVP Joint Venture was further reduced to $784 million as of September 30, 2022. There is risk that the Company's equity investment in the MVP Joint Venture may be further impaired in the future due to ongoing (and potentially future) legal and regulatory matters, as well as potential macroeconomic factors, including other than temporary market fluctuations, changes in interest rates, cost increases and other unanticipated events. While macroeconomic factors in and of themselves may not be a direct indicator of impairment, should an impairment indicator be identified in the future, macroeconomic factors such as changes in interest rates could ultimately impact the size and scope of any potential impairment.

In September 2022, based on the Company's targeted cost for the project, the MVP Joint Venture issued a capital call notice for the funding of the MVP project to MVP Holdco, LLC (MVP Holdco), a wholly owned subsidiary of the Company, for $40.7 million, of which $12.5 million was paid in October 2022, with the remaining $14.7 million and $13.5 million expected to be paid in November 2022 and December 2022, respectively. The capital contributions payable and the corresponding increase to the investment balance are reflected on the consolidated balance sheet as of September 30, 2022.

Pursuant to the MVP Joint Venture's limited liability company agreement, MVP Holdco is obligated to provide performance assurances, which may take the form of a guarantee from EQM (provided that EQM's debt is rated as investment grade in accordance with the requirements of the MVP Joint Venture's limited liability company agreement), a letter of credit or cash collateral, in favor of the MVP Joint Venture to provide assurance as to the funding of MVP Holdco's proportionate share of the construction budget for the MVP project.

In addition, pursuant to the MVP Joint Venture's limited liability company agreement, MVP Holdco is obligated to provide performance assurances in respect of MVP Southgate, which performance assurances may take the form of a guarantee from EQM (provided that EQM's debt is rated as investment grade in accordance with the requirements of the MVP Joint Venture's limited liability company agreement), a letter of credit or cash collateral.

Based on EQM’s credit rating levels, EQM has delivered credit support to the MVP Joint Venture in the form of letters of credit, which, in the case of the MVP project was in the amount of approximately $219.7 million and, in the case of the MVP Southgate, was in the amount of approximately $14.2 million, in each case, as of September 30, 2022. The amount of each of the letters of credit is subject to adjustment based upon the applicable project's construction budget. Upon the FERC’s initial release to begin construction of the MVP Southgate project, the Company's then-current letter of credit to support MVP Southgate will be terminated, and the Company will be obligated to deliver a new letter of credit (or provide another allowable form of performance assurance) in an amount equal to 33% of MVP Holdco’s proportionate share of the remaining capital obligations for the MVP Southgate project under the applicable construction budget.

The following tables summarize the unaudited condensed consolidated financial statements of the MVP Joint Venture in relation to the MVP project.

Condensed Consolidated Balance Sheets

	September 30, 2022		December 31, 2021
	(Thousands)
Current assets	$	53,381	$	148,820
Non-current assets	6,675,168		6,432,288
Total assets	$	6,728,549	$	6,581,108
Current liabilities	$	115,062	$	160,331
Equity	6,613,487		6,420,777
Total liabilities and equity	$	6,728,549	$	6,581,108

Condensed Statements of Consolidated Operations

	Three Months Ended September 30,				Nine Months Ended September 30,
	2022		2021		2022		2021
	(Thousands)
Operating (expenses) income	$	(20)	$	(201)	$	20	$	(351)
Net interest income	120		5,517		172		9,402
AFUDC - equity	—		12,862		—		21,904
Net income	$	100	$	18,178	$	192	$	30,955

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Debt

9 Months Ended

Sep. 30, 2022

Debt Disclosure [Abstract]

Debt

Debt

Amended EQM Revolving Credit Facility. On April 22, 2022 (the Amendment Date), EQM entered into an amendment (the Amendment) to that certain Third Amended and Restated Credit Agreement, dated as of October 31, 2018, among EQM, as borrower, Wells Fargo Bank, National Association, as the administrative agent, swing line lender, and an L/C issuer, the lenders party thereto from time to time and any other persons party thereto from time to time (as amended by that certain First Amendment to Third Amended and Restated Credit Agreement, dated as of March 30, 2020, and by that certain Second Amendment to Third Amended and Restated Credit Agreement, dated as of April 16, 2021) (as amended by the Amendment and as may be further amended, restated, amended and restated, supplemented or otherwise modified from time to time, the Amended EQM Credit Facility). For the avoidance of doubt, any reference to the Amended EQM Credit Facility as of any particular date shall mean the Amended EQM Credit Facility as in effect on such date. The Amendment, among other things, extended the stated maturity date, with such extension only applicable for the lenders approving the Amendment, from October 31, 2023 (the Earlier Maturity Date) to April 30, 2025 (the Later Maturity Date).

As of September 30, 2022, the Company had aggregate commitments available under the Amended EQM Credit Facility of approximately $2.16 billion before the Earlier Maturity Date, with approximately $1.55 billion in aggregate commitments available on and after the Earlier Maturity Date and prior to the Later Maturity Date. As of September 30, 2022, EQM had approximately $100 million of borrowings and $234.9 million of letters of credit outstanding under the Amended EQM Credit Facility. As of December 31, 2021, EQM had approximately $225 million of borrowings and $234.9 million of letters of credit outstanding under the Amended EQM Credit Facility. During the three and nine months ended September 30, 2022, the maximum outstanding borrowings at any time were approximately $190 million and $280 million, respectively, and the average daily balances were approximately $143 million and $176 million, respectively. EQM incurred interest at weighted average annual interest rates of approximately 4.8% and 3.8% for the three and nine months ended September 30, 2022, respectively. During the three and nine months ended September 30, 2021, the maximum outstanding borrowings at any time were approximately $390 million and $525 million, respectively, and the average daily balances were approximately $358 million and $440 million, respectively. EQM incurred interest at weighted average annual interest rates of approximately 2.7% and 2.6% for the three and nine months ended September 30, 2021, respectively. For the three and nine months ended September 30, 2022, commitment fees of $2.3 million and $6.1 million were paid to maintain credit availability under the

Amended EQM Credit Facility. For the three and nine months ended September 30, 2021, commitment fees of $1.7 million and $5.6 million were paid to maintain credit availability under the Amended EQM Credit Facility. As of September 30, 2022, no term loans were outstanding under the Amended EQM Credit Facility.

Amended 2019 EQM Term Loan Agreement. On January 8, 2021, EQM (i) applied a portion of the proceeds from the issuance of the 2021 Senior Notes (as defined below) to prepay all principal, interest, fees and other obligations outstanding under the Amended 2019 EQM Term Loan Agreement and (ii) terminated the Amended 2019 EQM Term Loan Agreement and the loan documents associated therewith. EQM repaid outstanding term loans (the EQM Term Loans) with a principal amount of $1.4 billion in connection with the termination of the Amended 2019 EQM Term Loan Agreement. Prior to its termination in January 2021, the Amended 2019 EQM Term Loan Agreement would have matured in August 2022. During the period from January 1, 2021 through January 7, 2021, the weighted average annual interest rate was approximately 2.4%.

Eureka Credit Facilities. On May 13, 2021, Eureka Midstream, LLC (Eureka), a wholly owned subsidiary of Eureka Midstream, repaid all outstanding principal borrowings plus accrued and unpaid interest under and terminated its credit facility with ABN AMRO Capital USA LLC, as administrative agent, the lenders party thereto from time to time and any other persons party thereto from time to time (the Former Eureka Credit Facility). In conjunction with the termination of, and to fund the repayment of all outstanding amounts under the Former Eureka Credit Facility, on May 13, 2021, Eureka entered into a $400 million senior secured revolving credit facility with Sumitomo Mitsui Banking Corporation, as administrative agent, the lenders party thereto from time to time and any other persons party thereto from time to time (the 2021 Eureka Credit Facility).

As of September 30, 2022, and December 31, 2021, Eureka had approximately $295 million and $280 million, respectively, of borrowings outstanding under the 2021 Eureka Credit Facility. For the three and nine months ended September 30, 2022, the maximum amount of outstanding borrowings under the 2021 Eureka Credit Facility at any time was approximately $295 million and the average daily balance was approximately $290 million and $296 million, respectively, and Eureka incurred interest at weighted average annual interest rates of approximately 4.8% and 4.3%, respectively. For the three and nine months ended September 30, 2022, commitment fees of $0.1 million and $0.4 million, respectively, were paid to maintain credit availability under the 2021 Eureka Credit Facility. For the three and nine months ended September 30, 2021, the maximum amount of outstanding borrowings under the Former Eureka Credit Facility and 2021 Eureka Credit Facility at any time was approximately $300 million and $315 million, respectively, the average daily balance was approximately $299 million and $305 million, respectively, and Eureka incurred interest at weighted average annual interest rates of approximately 2.8% and 2.5%, respectively. For the three and nine months ended September 30, 2021, commitment fees of $0.1 million and $0.3 million, respectively, were paid to maintain credit availability under the Former Eureka Credit Facility and 2021 Eureka Credit Facility, as applicable.

2022 Senior Notes. On June 7, 2022, EQM completed a private offering of $500 million aggregate principal amount of new 7.50% senior notes due 2027 (the 2027 Notes) and $500 million aggregate principal amount of new 7.50% senior notes due 2030 (the 2030 Notes and, together with the 2027 Notes, the 2022 Senior Notes) and received net proceeds from the offering of approximately $984.5 million inclusive of a discount of approximately $12.5 million and debt issuance costs of approximately $3.0 million.

The 2022 Senior Notes were issued under and are governed by an indenture, dated June 7, 2022 (the 2022 Indenture), between EQM and U.S. Bank Trust Company, National Association, as trustee. The 2022 Indenture contains covenants that limit EQM’s ability to, among other things, incur certain liens securing indebtedness, engage in certain sale and leaseback transactions, and enter into certain consolidations, mergers, conveyances, transfers or leases of all or substantially all of EQM’s assets. The 2027 Notes will mature on June 1, 2027 and interest on the 2027 Notes is payable semi-annually on June 1 and December 1 of each year, commencing December 1, 2022. The 2030 Notes will mature on June 1, 2030 and interest on the 2030 Notes is payable semi-annually on June 1 and December 1 of each year, commencing December 1, 2022.

The 2022 Senior Notes are unsecured and rank equally with all of EQM’s existing and future senior obligations. The 2022 Senior Notes are senior in right of payment to any of EQM’s future obligations that are, by their terms, expressly subordinated in right of payment to the 2022 Senior Notes. The 2022 Senior Notes are effectively subordinated to EQM’s secured obligations, if any, to the extent of the value of the collateral securing such obligations, and structurally subordinated to all indebtedness and obligations, including trade payables, of EQM’s subsidiaries, other than any subsidiaries that may guarantee the 2022 Senior Notes in the future.

EQM may, at its option, redeem some or all of the 2027 Notes and the 2030 Notes, in whole or in part, at any time prior to their maturity at the applicable redemption price as set forth in the 2022 Indenture.

Upon the occurrence of a Change of Control Triggering Event (as defined in the 2022 Indenture), EQM may be required to offer to purchase the 2022 Senior Notes at a purchase price equal to 101% of the aggregate principal amount of the 2022 Senior Notes repurchased, plus accrued and unpaid interest, if any, to, but excluding, the repurchase date.

The 2022 Indenture contains certain events of default, including the following: (1) default in the payment of interest on such 2022 Senior Notes when due that continues for 30 days; (2) default in the payment of principal of or premium, if any, on any such 2022 Senior Notes when due, whether at its stated maturity, upon redemption or otherwise; (3) failure by EQM or any subsidiary guarantor, if any, to comply for 90 days with the other agreements with respect to such 2022 Senior Notes contained in the 2022 Indenture after written notice by the trustee or by the holders of at least 25% in principal amount of the outstanding 2022 Senior Notes of such series; (4) certain events of bankruptcy, insolvency or reorganization of EQM or any subsidiary guarantor, if any, that is one of EQM’s Significant Subsidiaries (as defined in the 2022 Indenture); and (5) if such 2022 Senior Notes are guaranteed by a subsidiary guarantor that is one of EQM’s Significant Subsidiaries, (a) the guarantee of that subsidiary guarantor ceases to be in full force and effect, except as otherwise provided in the 2022 Indenture; (b) the guarantee of that subsidiary guarantor is declared null and void in a judicial proceeding; or (c) that subsidiary guarantor denies or disaffirms its obligations under the 2022 Indenture or its guarantee.

If an event of default occurs and is continuing, the trustee or the holders of at least 25% in aggregate principal amount of the then outstanding 2022 Senior Notes of such series may declare the 2022 Senior Notes of such series to be due and payable. Upon such a declaration, such principal, premium, if any, and accrued and unpaid interest on such 2022 Senior Notes will be due and payable immediately. If an event of default relating to certain events of bankruptcy, insolvency or reorganization occurs, all outstanding 2022 Senior Notes will become due and payable immediately without further action or notice on the part of the trustee or any holders of the 2022 Senior Notes.

EQM used the net proceeds from the offering of the 2022 Senior Notes and cash on hand to purchase (i) an aggregate principal amount of approximately $501.1 million of its outstanding 4.75% notes due 2023 (2023 Notes) pursuant to a tender offer for any and all of the outstanding 2023 Notes (the Any and All Tender Offer) and an open market purchase following the expiration of the Any and All Tender Offer, and (ii) an aggregate principal amount of $300 million of its outstanding 6.00% notes due 2025 (2025 Notes), and an aggregate principal amount of $200 million of its outstanding 4.00% notes due 2024 (2024 Notes), pursuant to tender offers (the Maximum Tender Offers, together with the Any and All Tender Offer, the 2022 Tender Offers) for the 2025 Notes and 2024 Notes, which such Maximum Tender Offers reflected a maximum aggregate principal amount of 2025 Notes and 2024 Notes to be purchased of $500 million (such amount, the Aggregate Maximum Principal Amount).

2022 Tender Offers. On June 6, 2022, the Any and All Tender Offer expired and, on June 7, 2022 and June 9, 2022, EQM purchased an aggregate principal amount of approximately $496.8 million of 2023 Notes at an aggregate cost of approximately $506.7 million pursuant to the Any and All Tender Offer. On June 10, 2022, which was after the closing of the Any and All Tender Offer, EQM also repurchased an aggregate principal amount of approximately $4.3 million of 2023 Notes in the open market at an aggregate cost of approximately $4.4 million. On June 13, 2022, which was the early tender deadline for the Maximum Tender Offers, the Aggregate Maximum Principal Amount was fully subscribed by the 2024 Notes and 2025 Notes then tendered, and, on June 14, 2022, EQM purchased an aggregate principal amount of $200 million of 2024 Notes and $300 million of 2025 Notes at an aggregate cost of approximately $509 million (inclusive of the applicable early tender premium for the 2024 Notes and 2025 Notes described in that certain Offer to Purchase of EQM dated May 31, 2022, as amended).

The Company incurred a loss on the extinguishment of debt of approximately $24.9 million during the nine months ended September 30, 2022 related to the payment of the 2022 Tender Offers and open market repurchase premiums and fees, and write off of the respective unamortized discounts and financing costs associated with the purchase of portions of 2023, 2024 and 2025 Notes in the 2022 Tender Offers. This amount is included in the loss on extinguishment of debt line on the statements of consolidated comprehensive income.

2021 Senior Notes. During the first quarter of 2021, EQM issued, in a private offering, $800 million aggregate principal amount of new 4.50% senior notes due 2029 (the 2029 Notes) and $1,100 million aggregate principal amount of new 4.75% senior notes due 2031 (the 2031 Notes and, together with the 2029 Notes, the 2021 Senior Notes) and received net proceeds from the offering of approximately $1,876.5 million (excluding costs related to the 2021 Tender Offers discussed below), inclusive of a discount of $19 million and debt issuance costs of $4.5 million. EQM used the net proceeds from the offering of the 2021 Senior Notes and cash on hand to repay all outstanding borrowings under the Amended 2019 EQM Term Loan Agreement, to purchase an aggregate principal amount of $500 million of its then outstanding 2023 Notes pursuant to tender offers for certain of EQM's outstanding indebtedness (such tender offers, the 2021 Tender Offers), and for general partnership purposes.

2021 Tender Offers. On January 15, 2021 (the 2021 early tender deadline), the maximum principal amount for the 2021 Tender Offers was fully subscribed by the 2023 Notes tendered as of the 2021 early tender deadline and on January 20, 2021, EQM purchased an aggregate principal amount of $500 million of 2023 Notes at an aggregate cost of approximately $537 million (inclusive of the applicable early tender premium for the 2023 Notes described in that certain Offer to Purchase of EQM dated January 4, 2021, as amended, plus accrued interest).

The Company incurred a loss on the extinguishment of debt of $41.0 million during the nine months ended September 30, 2021 related to the payment of the 2021 Tender Offers premium and write off of unamortized discounts and financing costs related to the prepayment of the EQM Term Loans under, and termination of, the Amended 2019 EQM Term Loan Agreement and purchase of 2023 Notes in the 2021 Tender Offers. This amount is included in the loss on extinguishment of debt line on the statements of consolidated comprehensive income.

As of September 30, 2022, EQM and Eureka were in compliance with all debt provisions and covenants.

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Fair Value Measurements

9 Months Ended

Sep. 30, 2022

Fair Value Disclosures [Abstract]

Fair Value Measurements

Fair Value Measurements

Assets Measured at Fair Value on a Recurring Basis. The Company records derivative instruments at fair value on a gross basis in its consolidated balance sheets. The EQT Global GGA provides for potential cash bonus payments payable by EQT to the Company during the period beginning on the first day of the calendar quarter in which the MVP full in-service date occurs through the calendar quarter ending December 31, 2024 (the Henry Hub cash bonus payment provision). The potential cash bonus payments are conditioned upon the quarterly average of certain Henry Hub natural gas prices exceeding certain price thresholds. The Henry Hub cash bonus payment provision is accounted for as a derivative instrument and recorded at its estimated fair value using a Monte Carlo simulation model. Significant inputs used in the fair value measurement include NYMEX Henry Hub natural gas futures prices as of the date of valuation, the targeted in-service date for the MVP, risk-free interest rates based on U.S. Treasury rates, expected volatility of NYMEX Henry Hub natural gas futures prices and an estimated credit spread of EQT. The targeted full in-service date for the MVP project and the expected volatility of NYMEX Henry Hub natural gas futures prices used in the valuation methodology represent significant unobservable inputs causing the Henry Hub cash bonus payment provision to be designated as a Level 3 fair value measurement. An expected average volatility of approximately 60% was utilized in the valuation model, which is based on market-quoted volatilities of relevant NYMEX Henry Hub natural gas forward prices.

As of September 30, 2022 and December 31, 2021, the fair values of the Henry Hub cash bonus payment provision were $69.4 million and $51.6 million, respectively, which were recorded in other assets on the Company's consolidated balance sheets. During the three and nine months ended September 30, 2022, the Company recognized a loss of $2.4 million and a gain of $17.8 million, respectively, representing the change in estimated fair value of the derivative instrument during the respective periods. During the three and nine months ended September 30, 2021, the Company recognized gains of $21.3 million and $37.9 million, respectively, representing the change in estimated fair value of the derivative instrument during the respective periods. The (loss) gains are reflected in other income, net in the Company's statements of consolidated comprehensive income.

Other Financial Instruments. The carrying values of cash and cash equivalents, accounts receivable and accounts payable approximate fair value due to the short maturity of the instruments; as such, their fair values are Level 1 fair value measurements. The carrying values of borrowings under the Amended EQM Credit Facility, the Former Eureka Credit Facility (prior to its termination), the 2021 Eureka Credit Facility and the Amended 2019 EQM Term Loan Agreement (prior to its termination) approximate fair value as the interest rates are based on prevailing market rates; these are considered Level 1 fair value measurements. As EQM's borrowings under its senior notes are not actively traded, their fair values are estimated using an income approach model that applies a discount rate based on prevailing market rates for debt with similar remaining time-to-maturity and credit risk; as such, their fair values are Level 2 fair value measurements. As of September 30, 2022, and December 31, 2021, the estimated fair values of EQM's senior notes were approximately $5,666.7 million and $7,060.5 million, respectively, and the carrying values of EQM's senior notes were approximately $6,431.3 million and $6,434.9 million, respectively. The fair value of the Preferred Interest is based on significant inputs that are not observable in the market and, as such, is a Level 3 fair value measurement and is estimated using an income approach model that applies a market-based discount rate. As of September 30, 2022, and December 31, 2021, the estimated fair values of the Preferred Interest were approximately $95.5 million and $117.0 million, respectively, and the carrying values of the Preferred Interest were approximately $95.7 million and $100.0 million, respectively. As of September 30, 2022, the carrying value of the Preferred Interest exceeded its estimated fair value, which was considered temporary and not material.

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Earnings Per Share

9 Months Ended

Sep. 30, 2022

Earnings Per Share [Abstract]

Earnings Per Share

Earnings Per Share

The Company excluded 30,862 and 30,800 (in thousands) of weighted average anti-dilutive securities related to the Equitrans Midstream Preferred Shares and stock-based compensation awards from the computation of diluted weighted average common shares outstanding for the three and nine months ended September 30, 2022, respectively. The Company excluded 30,018 (in thousands), in each case, of weighted average anti-dilutive securities related to the Equitrans Midstream Preferred Shares from the computation of diluted weighted average common shares outstanding for the three and nine months ended September 30, 2021.

The Company grants Equitrans Midstream phantom units to certain non-employee directors that will be paid in Equitrans Midstream common stock upon the director's termination of service on the Board. As there are no remaining service,

performance or market conditions related to these awards, 567 and 599 (in thousands) Equitrans Midstream phantom units were included in the computation of basic and diluted weighted average common shares outstanding for the three and nine months ended September 30, 2022, respectively, and 498 and 495 (in thousands) Equitrans Midstream phantom units were included in the computation of basic and diluted weighted average common shares outstanding for the three and nine months ended September 30, 2021, respectively.

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Income Taxes

9 Months Ended

Sep. 30, 2022

Income Tax Disclosure [Abstract]

Income Taxes

Income Taxes

The Company's effective tax rate was 0.3% for the three months ended September 30, 2022, compared to 26.2% for the three months ended September 30, 2021. The Company's effective tax rate was (2.7)% for the nine months ended September 30, 2022, compared to 23.9% for the nine months ended September 30, 2021. For the three and nine months ended September 30, 2022 and 2021, the Company calculated the provision for income taxes for interim periods by applying an estimate of the annual effective tax rate for the full fiscal year to "ordinary" income or loss (income (loss) before income taxes excluding unusual or infrequently occurring items) for the periods. The effective tax rate was lower for the three and nine months ended September 30, 2022 compared to the three and nine months ended September 30, 2021 primarily due to the impairment of the Company's equity method investment in the MVP Joint Venture and its impact on the loss before income taxes, partially offset by an increase in the valuation allowances that limit tax benefits for the Company's federal and state deferred tax assets, which were recorded by the Company at December 31, 2021. The effective tax rate for the three and nine months ended September 30, 2022 was lower than the statutory rate primarily due to the increase in the valuation allowances that limit tax benefits for the Company’s federal and state deferred tax assets, primarily due to the impairment of the Company's equity method investment in the MVP Joint Venture and its impact on the loss before income taxes. The effective tax rate for the three and nine months ended September 30, 2021 was lower than the statutory rate primarily due to the impact of AFUDC - equity on the MVP project.

For the nine months ended September 30, 2022, the Company believes that it is more likely than not that the benefit from a portion of its state net operating loss (NOL) carryforwards, deferred tax assets related to interest disallowance under Internal Revenue Code Section 163(j), and certain state deferred tax assets, net of offsetting deferred tax liabilities, will not be realized and accordingly, the Company maintains related valuation allowances. For the nine months ended September 30, 2022, the Company recorded income tax expense of approximately $54.5 million primarily related to changes in valuation allowances of approximately $77.4 million because of increases in federal and state deferred tax assets, partially offset by a $22.9 million benefit related to decreases in future Pennsylvania corporate net income tax rates. As of September 30, 2022 and December 31, 2021, the valuation allowances related to federal and state deferred tax assets were approximately $152.1 million and $97.6 million, respectively.

Valuation allowances are recorded to reduce deferred tax assets when it is more likely than not (greater than 50%) that a tax benefit will not be realized. In evaluating the need for a valuation allowance, management considers available evidence, both positive and negative, including potential sources of taxable income, income available in carry-back periods, future reversals of taxable temporary differences, projections of taxable income and income from tax planning strategies. Positive evidence includes reversing temporary differences and projection of future profitability within the carry-forward period, including from tax planning strategies. Negative evidence includes historical pre-tax book losses and Pennsylvania NOL expirations. A review of positive and negative evidence regarding these tax benefits resulted in the conclusion that valuation allowances on a portion of the Company’s state NOL carryforwards, deferred tax assets related to interest disallowance under Internal Revenue Code Section 163(j), and certain state deferred tax assets, net of offsetting deferred tax liabilities, were warranted as it was more likely than not that these assets will not be realized. Any determination to change the beginning of the year valuation allowance resulting from a change in the judgment about realizability of deferred tax assets in future years would impact the Company's income tax expense in the period in which such a determination is made.

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Financial Statements (Policies)

9 Months Ended

Sep. 30, 2022

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Basis of Presentation

Basis of Presentation. References in these financial statements to Equitrans Midstream or the Company refer collectively to Equitrans Midstream Corporation and its consolidated subsidiaries for all periods presented, unless otherwise indicated.

The accompanying unaudited consolidated financial statements have been prepared in accordance with generally accepted accounting principles in the United States (GAAP) for interim financial information and with the requirements of Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by GAAP for complete financial statements. In the opinion of management, these unaudited consolidated financial statements include all adjustments (consisting of only normal, recurring adjustments, unless otherwise disclosed in this Quarterly Report on Form 10-Q) necessary for a fair presentation of the financial position of the Company as of September 30, 2022, the results of its operations and equity for the three and nine months ended September 30, 2022 and 2021 and its cash flows for the nine months ended September 30, 2022 and 2021. The consolidated balance sheet at December 31, 2021 has been derived from the audited financial statements at that date, but does not include all of the information and notes required by GAAP for complete financial statements. This Quarterly Report on Form 10-Q should be read in conjunction with the Company's Annual Report on Form 10-K for the year ended December 31, 2021, which includes all disclosures required by GAAP.

Due to, among other things, the seasonal nature of the Company's utility customer contracts, as well as producers’ well completion activities and varying needs for fresh and produced water (which are primarily driven by horizontal lateral lengths and the number of completion stages per well), the interim statements for the three and nine months ended September 30, 2022 are not necessarily indicative of the results that may be expected for the year ending December 31, 2022.

For further information, refer to the Company's annual consolidated financial statements and related notes in the Company's Annual Report on Form 10-K for the year ended December 31, 2021, as well as Part I, "Item 2. Management's Discussion and Analysis of Financial Condition and Results of Operations" contained herein.

Recently Issued Accounting Standards

Recently Issued Accounting Standards.

In March 2020, the FASB issued ASU 2020-04, Reference Rate Reform (Topic 848), which provides practical expedients for contract modifications and certain hedging relationships associated with the transition from reference rates that are expected to be discontinued. This guidance is applicable to the calculation of each dividend following March 31, 2024 for the Equitrans Midstream Preferred Shares pursuant to the Company's Second Amended and Restated Articles of Incorporation, as well as any Company contracts that use the London Inter-Bank Offered Rate as a reference rate. The ASU was effective immediately but is only available through December 31, 2022. In April 2022, the FASB proposed deferring the sunset date for applying reference rate reform relief in Topic 848 to December 31, 2024. The Company is currently evaluating the potential impact of adopting this standard on its financial statements and related disclosures.

In August 2020, the FASB issued ASU 2020-06, Accounting for Convertible Instruments and Contracts in an Entity’s Own Equity, which simplifies the accounting for convertible debt and convertible preferred stock by removing the requirements to separately present certain conversion features in equity. In addition, the amendments in the ASU 2020-06 also simplify the guidance in ASC Subtopic 815-40, Derivatives and Hedging: Contracts in Entity’s Own Equity, by removing certain criteria that must be satisfied in order to classify a contract as equity. Finally, the amendments revise the guidance on calculating earnings per share, requiring use of the if-converted method for all convertible instruments and rescinding an entity’s ability to rebut the presumption of share settlement for instruments that may be settled in cash or other assets. The amendments were effective for fiscal years beginning after December 15, 2021.

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Financial Information by Business Segment (Tables)

9 Months Ended

Sep. 30, 2022

Segment Reporting [Abstract]

Schedule of Revenue from External Customers and Operating Income and Reconciliation to Net Income

	Three Months Ended September 30,				Nine Months Ended September 30,
	2022		2021		2022		2021
	(Thousands)
Revenues from customers:
Gathering	$	227,180	$	243,816	$	672,284	$	733,844
Transmission	91,557		90,886		293,430		295,203
Water	13,014		7,372		36,794		41,318
Total operating revenues	$	331,751	$	342,074	$	1,002,508	$	1,070,365
Operating income (loss):
Gathering	$	112,279	$	132,582	$	347,464	$	399,309
Transmission	64,077		59,703		209,480		203,153
Water (a)	2,342		(4,414)		3,606		(55,577)
Headquarters (b)	(368)		(325)		(984)		(806)
Total operating income	$	178,330	$	187,546	$	559,566	$	546,079
Reconciliation of operating income to net (loss) income:
Equity income (c)	$	48	$	8,461	$	91	$	14,385
Impairment of equity method investment (c)	(583,057)		—		(583,057)		—
Other income, net (d)	893		21,199		21,414		38,251
Loss on extinguishment of debt	—		—		(24,937)		(41,025)
Net interest expense	(101,085)		(94,101)		(289,323)		(284,887)
Income tax (benefit) expense	(1,275)		32,200		8,636		65,180
Net (loss) income	$	(503,596)	$	90,905	$	(324,882)	$	207,623

(a)Impairment of long-lived assets of $56.2 million for the nine months ended September 30, 2021 was included in Water operating income (loss). See Note 2 for further information.

(b)Includes certain unallocated corporate expenses.

(c)Equity income and impairment of equity method investment are included in the Transmission segment.

(d)Includes unrealized (losses) gains on derivative instruments and gain on sale of gathering assets recorded in the Gathering segment.

Schedule of Segment Assets

	September 30, 2022		December 31, 2021
	(Thousands)
Segment assets:
Gathering	$	7,647,237	$	7,638,877
Transmission (a)	2,288,144		2,769,097
Water	196,004		151,151
Total operating segments	10,131,385		10,559,125
Headquarters, including cash	255,119		361,639
Total assets	$	10,386,504	$	10,920,764

(a)The equity investment in the MVP Joint Venture is included in the Transmission segment.

Schedule of Depreciation and Amortization and Expenditures for Segment Assets

	Three Months Ended September 30,				Nine Months Ended September 30,
	2022		2021		2022		2021
	(Thousands)
Depreciation:
Gathering	$	49,125	$	47,441	$	145,953	$	140,899
Transmission	13,909		13,835		41,707		41,461
Water	5,162		4,364		14,483		20,740
Headquarters	376		381		1,129		854
Total	$	68,572	$	66,021	$	203,272	$	203,954
Capital expenditures:
Gathering (a)	$	73,589	$	62,916	$	195,925	$	170,709
Transmission (b)	12,429		5,755		22,994		17,050
Water	17,041		10,803		49,132		20,430
Headquarters	—		83		13		1,455
Total (c)	$	103,059	$	79,557	$	268,064	$	209,644

(a)Includes capital expenditures related to the noncontrolling interest in Eureka Midstream Holdings, LLC (Eureka Midstream) of approximately $5.9 million and $17.6 million for the three and nine months ended September 30, 2022, respectively, and approximately $4.8 million and $10.6 million for the three and nine months ended September 30, 2021, respectively.

(b)Transmission capital expenditures do not include aggregate capital contributions made to the MVP Joint Venture for the MVP and MVP Southgate projects of approximately $46.4 million and $158.2 million for the three and nine months ended September 30, 2022, respectively, and approximately $94.3 million and $179.0 million for the three and nine months ended September 30, 2021, respectively.

(c)The Company accrues capital expenditures when the work has been completed but the associated bills have not yet been paid. Accrued capital expenditures are excluded from the statements of consolidated cash flows until they are paid. The net impact of non-cash capital expenditures, including the effect of accrued capital expenditures, transfers to/from inventory as assets are completed/assigned to a project and capitalized share-based compensation costs, was $10.7 million and $8.8 million for the three and nine months ended September 30, 2022, respectively, and $1.2 million and $1.4 million for the three and nine months ended September 30, 2021, respectively.

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Revenue from Contracts with Customers (Tables)

9 Months Ended

Sep. 30, 2022

Revenue from Contract with Customer [Abstract]

Schedule of Disaggregated Revenue Information, By Segment

The tables below provide disaggregated revenue information by business segment.

	Three Months Ended September 30, 2022
	Gathering		Transmission		Water		Total
	(Thousands)
Firm reservation fee revenues (a)	$	144,730	$	84,584	$	9,375	$	238,689
Volumetric-based fee revenues	82,450		6,973		3,639		93,062
Total operating revenues	$	227,180	$	91,557	$	13,014	$	331,751
	Three Months Ended September 30, 2021
	Gathering		Transmission		Water		Total
	(Thousands)
Firm reservation fee revenues (a)	$	151,004	$	84,053	$	1,061	$	236,118
Volumetric-based fee revenues	92,812		6,833		6,311		105,956
Total operating revenues	$	243,816	$	90,886	$	7,372	$	342,074

	Nine Months Ended September 30, 2022
	Gathering		Transmission		Water		Total
	(Thousands)
Firm reservation fee revenues (a)	$	415,932	$	272,129	$	24,502	$	712,563
Volumetric-based fee revenues	256,352		21,301		12,292		289,945
Total operating revenues	$	672,284	$	293,430	$	36,794	$	1,002,508
	Nine Months Ended September 30, 2021
	Gathering		Transmission		Water		Total
	(Thousands)
Firm reservation fee revenues (a)	$	448,556	$	269,239	$	3,834	$	721,629
Volumetric-based fee revenues	285,288		25,964		37,484		348,736
Total operating revenues	$	733,844	$	295,203	$	41,318	$	1,070,365

(a) Firm reservation fee revenues associated with Gathering included MVC unbilled revenues of approximately $8.5 million and $17.4 million for the three and nine months ended September 30, 2022, respectively. Firm reservation fee revenues associated with Gathering and Water included MVC unbilled revenues of approximately $5.5 million and $0.5 million, respectively, for the three months ended September 30, 2021, and approximately $12.4 million and $1.5 million, for the nine months ended September 30, 2021, respectively.

Contract with Customer, Asset and Liability

The following table presents changes in the Company's unbilled revenue balance during the nine months ended September 30, 2022 and 2021:

	Unbilled Revenue
	2022		2021
	(Thousands)
Balance as of beginning of period	$	16,772	$	18,618
Revenue recognized in excess of amounts invoiced (a)	19,436		21,908
Minimum volume commitments invoiced (b)	(14,884)		(23,373)
Amortization (c)	(334)		(78)
Balance as of end of period	$	20,990	$	17,075

(a)Primarily includes revenues associated with MVCs that are generally included in firm reservation fee revenues within the Gathering and Water segments. During the nine months ended September 30, 2021, also includes other contractual commitments of approximately $6.4 million.

(b)Unbilled revenues are transferred to accounts receivable once the Company has an unconditional right to consideration from the customer.

(c)Amortization of capitalized contract costs paid to customers over the expected life of the agreement.

The following table presents changes in the Company's contract liability balances during the nine months ended September 30, 2022 and 2021:

	Contract Liability
	2022		2021
	(Thousands)
Balance as of beginning of period	$	822,416	$	398,750
Amounts recorded during the period (a)	266,792		225,583
Change in estimated variable consideration (b)	(4,837)		—
Amounts transferred during the period (c)	(942)		(268)
EQT Cash Option in lieu of a portion of rate relief	(195,820)		—
Balance as of end of period	$	887,609	$	624,065

(a)Includes deferred billed revenue during the nine months ended September 30, 2022 and 2021 primarily associated with the EQT Global GGA.

(b)Change in estimated variable consideration represents the decrease in total deferred revenue required for gathering MVC revenue with a declining rate structure, resulting from the EQT Cash Option election that required total estimated gathering consideration to be increased.

(c)Deferred revenues are recognized as revenue upon satisfaction of the Company's performance obligation to the customer.

Summary of Remaining Performance Obligations

The following table summarizes the estimated transaction price allocated to the Company's remaining performance obligations under all contracts with firm reservation fees, MVCs and/or ARCs as of September 30, 2022 that the Company will invoice or transfer from contract liabilities and recognize in future periods.

		2022(a)		2023		2024		2025		2026		Thereafter		Total
	(Thousands)
Gathering firm reservation fees		$	22,308	$	108,000	$	170,060	$	175,509	$	166,594	$	1,865,013	$	2,507,484
Gathering revenues supported by MVCs		112,587		461,028		431,793		450,995		462,291		3,499,289		5,417,983
Transmission firm reservation fees		98,135		366,701		382,971		366,757		360,929		3,316,261		4,891,754
Water revenues supported by ARCs		9,375		37,500		37,500		37,500		37,500		193,750		353,125
Total (b)		$	242,405	$	973,229	$	1,022,324	$	1,030,761	$	1,027,314	$	8,874,313	$	13,170,346

(a)    October 1, 2022 through December 31, 2022.

(b)    Includes assumptions regarding timing for placing certain projects in-service. Such assumptions may not be realized and delays in the in-service dates for projects have substantially altered, and additional delays may further substantially alter, the remaining performance obligations for certain contracts with firm reservation fees, MVCs and/or ARCs. The MVP Joint Venture is accounted for as an equity investment and those amounts are not included in the table above.

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Related Party Transactions (Tables)

9 Months Ended

Sep. 30, 2022

Related Party Transactions [Abstract]

Schedule of Related Party Transactions

The following table summarizes the Company's related party transactions in the below-described portions of 2021.

	Three Months Ended September 30,		Nine Months Ended September 30,
	2021		2021
	(Thousands)
Operating revenues	$	220,781	$	668,837
Interest income from the Preferred Interest	1,433		4,353
Principal Payments received on the Preferred Interest	1,313		3,885

The following table summarizes the Company's related party receivables and payables.

	December 31, 2021
	(Thousands)
Accounts receivable	$	190,410
Contract asset	2,246
Preferred Interest	99,838
Contract liability	818,658

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Investments in Unconsolidated Entity (Tables)

9 Months Ended

Sep. 30, 2022

Equity Method Investments and Joint Ventures [Abstract]

Schedule of Unaudited Condensed Financial Statements for the Investment in Unconsolidated Equity

The following tables summarize the unaudited condensed consolidated financial statements of the MVP Joint Venture in relation to the MVP project.

Condensed Consolidated Balance Sheets

	September 30, 2022		December 31, 2021
	(Thousands)
Current assets	$	53,381	$	148,820
Non-current assets	6,675,168		6,432,288
Total assets	$	6,728,549	$	6,581,108
Current liabilities	$	115,062	$	160,331
Equity	6,613,487		6,420,777
Total liabilities and equity	$	6,728,549	$	6,581,108

Condensed Statements of Consolidated Operations

	Three Months Ended September 30,				Nine Months Ended September 30,
	2022		2021		2022		2021
	(Thousands)
Operating (expenses) income	$	(20)	$	(201)	$	20	$	(351)
Net interest income	120		5,517		172		9,402
AFUDC - equity	—		12,862		—		21,904
Net income	$	100	$	18,178	$	192	$	30,955

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Impairments of Long-Lived Assets - Narrative (Details) $ in Thousands	3 Months Ended			9 Months Ended
	Sep. 30, 2022 USD ($)	Sep. 30, 2021 USD ($)	Jun. 30, 2021 USD ($)	Sep. 30, 2022 USD ($)	Sep. 30, 2021 USD ($)
Property, Plant and Equipment
Impairment of long-lived assets and equity method investment	$ 0	$ 0		$ 0	$ 56,178
Impairment of equity method investment	583,057	$ 0		583,057	0
MVP Joint Venture
Property, Plant and Equipment
Impairment of equity method investment				583,000
Equity method investment	$ 784,000			$ 784,000
MVP Joint Venture | Measurement Input, Discount Rate
Property, Plant and Equipment
Fair value measurement input	0.075			0.075
Water
Property, Plant and Equipment
Impairment of long-lived assets and equity method investment			$ 56,200		$ 56,200

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Financial Information by Business Segment - Narrative (Details)	9 Months Ended
	Sep. 30, 2022 lineOfBusiness segment
Segment Reporting [Abstract]
Number of operating segments | segment	3
Number of lines of business | lineOfBusiness	3

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Financial Information by Business Segment - Schedule of Segment Income (Details) - USD ($) $ in Thousands		3 Months Ended			9 Months Ended
		Sep. 30, 2022	Sep. 30, 2021	Jun. 30, 2021	Sep. 30, 2022		Sep. 30, 2021
Revenues from customers:
Operating revenues		$ 331,751	$ 342,074		$ 1,002,508		$ 1,070,365
Operating income (loss):
Total operating income		178,330	187,546		559,566		546,079
Reconciliation of operating income to net (loss) income:
Equity income	[1]	48	8,461		91	[2]	14,385	[2]
Impairment of equity method investment		(583,057)	0		(583,057)		0
Other income, net		893	21,199		21,414		38,251
Loss on extinguishment of debt		0	0		(24,937)		(41,025)
Net interest expense		(101,085)	(94,101)		(289,323)		(284,887)
Income tax (benefit) expense		(1,275)	32,200		8,636		65,180
Net (loss) income		(503,596)	90,905		(324,882)		207,623
Impairment of long-lived assets and equity method investment		0	0		0		56,178
Gathering
Revenues from customers:
Operating revenues		227,180	243,816		672,284		733,844
Transmission
Revenues from customers:
Operating revenues		91,557	90,886		293,430		295,203
Water
Revenues from customers:
Operating revenues		13,014	7,372		36,794		41,318
Reconciliation of operating income to net (loss) income:
Impairment of long-lived assets and equity method investment				$ 56,200			56,200
Operating segments | Gathering
Revenues from customers:
Operating revenues		227,180	243,816		672,284		733,844
Operating income (loss):
Total operating income		112,279	132,582		347,464		399,309
Operating segments | Transmission
Revenues from customers:
Operating revenues		91,557	90,886		293,430		295,203
Operating income (loss):
Total operating income		64,077	59,703		209,480		203,153
Operating segments | Water
Revenues from customers:
Operating revenues		13,014	7,372		36,794		41,318
Operating income (loss):
Total operating income		2,342	(4,414)		3,606		(55,577)
Headquarters
Operating income (loss):
Total operating income		$ (368)	$ (325)		$ (984)		$ (806)

[1] Represents equity income from Mountain Valley Pipeline, LLC (the MVP Joint Venture). See Note 6.

[2] Represents equity income from the MVP Joint Venture. See Note 6.

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Financial Information by Business Segment - Assets (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Long-Lived Assets
Total assets	$ 10,386,504	$ 10,920,764
Operating segments
Long-Lived Assets
Total assets	10,131,385	10,559,125
Operating segments | Gathering
Long-Lived Assets
Total assets	7,647,237	7,638,877
Operating segments | Transmission
Long-Lived Assets
Total assets	2,288,144	2,769,097
Operating segments | Water
Long-Lived Assets
Total assets	196,004	151,151
Headquarters
Long-Lived Assets
Total assets	$ 255,119	$ 361,639

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Financial Information by Business Segment - Depreciation and Capital Expenditures for Segment Assets (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Segment Information
Depreciation	$ 68,572	$ 66,021	$ 203,272	$ 203,954
Capital expenditures for segment assets	103,059	79,557	268,064	209,644
Capitalized share-based compensation cost	10,700	1,200	8,800	1,400
Operating segments | Gathering
Segment Information
Depreciation	49,125	47,441	145,953	140,899
Capital expenditures for segment assets	73,589	62,916	195,925	170,709
Operating segments | Gathering | Eureka Midstream Holdings, LLC
Segment Information
Capital expenditures for segment assets	5,900	4,800	17,600	10,600
Operating segments | Transmission
Segment Information
Depreciation	13,909	13,835	41,707	41,461
Capital expenditures for segment assets	12,429	5,755	22,994	17,050
Operating segments | Transmission | MVP Southgate Project
Segment Information
Capital expenditures for segment assets	46,400	94,300	158,200	179,000
Operating segments | Water
Segment Information
Depreciation	5,162	4,364	14,483	20,740
Capital expenditures for segment assets	17,041	10,803	49,132	20,430
Headquarters
Segment Information
Depreciation	376	381	1,129	854
Capital expenditures for segment assets	$ 0	$ 83	$ 13	$ 1,455

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Revenue from Contracts with Customers - Schedule of Disaggregated Revenue Information, by Business Segment (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Disaggregation of Revenue
Operating revenues	$ 331,751	$ 342,074	$ 1,002,508	$ 1,070,365
Firm reservation fee revenues
Disaggregation of Revenue
Operating revenues	238,689	236,118	712,563	721,629
Volumetric-based fee revenues
Disaggregation of Revenue
Operating revenues	93,062	105,956	289,945	348,736
Gathering
Disaggregation of Revenue
Operating revenues	227,180	243,816	672,284	733,844
Gathering | MVC
Disaggregation of Revenue
Operating revenues	8,500	5,500	17,400	12,400
Gathering | Firm reservation fee revenues
Disaggregation of Revenue
Operating revenues	144,730	151,004	415,932	448,556
Gathering | Volumetric-based fee revenues
Disaggregation of Revenue
Operating revenues	82,450	92,812	256,352	285,288
Transmission
Disaggregation of Revenue
Operating revenues	91,557	90,886	293,430	295,203
Transmission | Firm reservation fee revenues
Disaggregation of Revenue
Operating revenues	84,584	84,053	272,129	269,239
Transmission | Volumetric-based fee revenues
Disaggregation of Revenue
Operating revenues	6,973	6,833	21,301	25,964
Water
Disaggregation of Revenue
Operating revenues	13,014	7,372	36,794	41,318
Water | MVC
Disaggregation of Revenue
Operating revenues		500		1,500
Water | Firm reservation fee revenues
Disaggregation of Revenue
Operating revenues	9,375	1,061	24,502	3,834
Water | Volumetric-based fee revenues
Disaggregation of Revenue
Operating revenues	$ 3,639	$ 6,311	$ 12,292	$ 37,484

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Revenue from Contracts with Customers - Unbilled Revenue Rollforward (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
Movement in Deferred Revenue [Roll Forward]
Balance as of beginning of period	$ 16,772	$ 18,618
Revenue recognized in excess of amounts invoiced	19,436	21,908
Minimum volume commitments invoiced	(14,884)	(23,373)
Amortization	(334)	(78)
Balance as of end of period	$ 20,990	17,075
Other contractual commitments		$ 6,400

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Revenue from Contracts with Customers - Narrative (Details) - USD ($) $ in Thousands		9 Months Ended
	Jul. 08, 2022	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021	Dec. 31, 2020
Disaggregation of Revenue
Contract liability		$ 887,609	$ 624,065	$ 822,416	$ 398,750
Contract liability, current		1,500		1,100
Contract liability, noncurrent		886,126		$ 821,342
Option to forgo fee relief, year one	$ 145,000
Option to forgo fee relief, year two	90,000
Cash payment to be made in exchange for fee relief	$ 195,800
Contract liability reduction		$ 195,820	$ 0
Gathering
Disaggregation of Revenue
Weighted average remaining term		14 years
Transmission firm reservation fees
Disaggregation of Revenue
Weighted average remaining term		12 years

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Revenue from Contracts with Customers - Deferred Revenue Rollforward (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
Change in Contract with Customer, Liability
Balance as of beginning of period	$ 822,416	$ 398,750
Amounts recorded during the period	266,792	225,583
Change in estimated variable consideration	(4,837)	0
Amounts transferred during the period	(942)	(268)
EQT Cash Option in lieu of a portion of rate relief	(195,820)	0
Balance as of end of period	$ 887,609	$ 624,065

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Revenue from Contracts with Customers - Summary of Remaining Performance Obligations (Details) $ in Thousands	Sep. 30, 2022 USD ($)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction
Total	$ 13,170,346
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-10-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction
Total	242,405
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction
Total	973,229
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2024-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction
Total	1,022,324
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2025-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction
Total	1,030,761
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2026-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction
Total	1,027,314
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2027-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction
Total	8,874,313
Transmission firm reservation fees
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction
Total	4,891,754
Transmission firm reservation fees | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-10-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction
Total	$ 98,135
Remaining performance obligations, expected timing	3 months
Transmission firm reservation fees | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction
Total	$ 366,701
Remaining performance obligations, expected timing	1 year
Transmission firm reservation fees | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2024-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction
Total	$ 382,971
Remaining performance obligations, expected timing	1 year
Transmission firm reservation fees | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2025-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction
Total	$ 366,757
Remaining performance obligations, expected timing	1 year
Transmission firm reservation fees | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2026-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction
Total	$ 360,929
Remaining performance obligations, expected timing	1 year
Transmission firm reservation fees | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2027-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction
Total	$ 3,316,261
Remaining performance obligations, expected timing
Water revenues supported by ARCs
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction
Total	$ 353,125
Water revenues supported by ARCs | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-10-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction
Total	$ 9,375
Remaining performance obligations, expected timing	3 months
Water revenues supported by ARCs | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction
Total	$ 37,500
Remaining performance obligations, expected timing	1 year
Water revenues supported by ARCs | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2024-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction
Total	$ 37,500
Remaining performance obligations, expected timing	1 year
Water revenues supported by ARCs | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2025-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction
Total	$ 37,500
Remaining performance obligations, expected timing	1 year
Water revenues supported by ARCs | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2026-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction
Total	$ 37,500
Remaining performance obligations, expected timing	1 year
Water revenues supported by ARCs | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2027-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction
Total	$ 193,750
Remaining performance obligations, expected timing
Gathering firm reservation fees | Gathering
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction
Total	$ 2,507,484
Gathering firm reservation fees | Gathering | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-10-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction
Total	$ 22,308
Remaining performance obligations, expected timing	3 months
Gathering firm reservation fees | Gathering | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction
Total	$ 108,000
Remaining performance obligations, expected timing	1 year
Gathering firm reservation fees | Gathering | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2024-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction
Total	$ 170,060
Remaining performance obligations, expected timing	1 year
Gathering firm reservation fees | Gathering | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2025-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction
Total	$ 175,509
Remaining performance obligations, expected timing	1 year
Gathering firm reservation fees | Gathering | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2026-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction
Total	$ 166,594
Remaining performance obligations, expected timing	1 year
Gathering firm reservation fees | Gathering | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2027-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction
Total	$ 1,865,013
Remaining performance obligations, expected timing
Gathering revenues supported by MVCs | Gathering
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction
Total	$ 5,417,983
Gathering revenues supported by MVCs | Gathering | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-10-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction
Total	$ 112,587
Remaining performance obligations, expected timing	3 months
Gathering revenues supported by MVCs | Gathering | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction
Total	$ 461,028
Remaining performance obligations, expected timing	1 year
Gathering revenues supported by MVCs | Gathering | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2024-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction
Total	$ 431,793
Remaining performance obligations, expected timing	1 year
Gathering revenues supported by MVCs | Gathering | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2025-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction
Total	$ 450,995
Remaining performance obligations, expected timing	1 year
Gathering revenues supported by MVCs | Gathering | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2026-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction
Total	$ 462,291
Remaining performance obligations, expected timing	1 year
Gathering revenues supported by MVCs | Gathering | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2027-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction
Total	$ 3,499,289
Remaining performance obligations, expected timing

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Related Party Transactions - Summary of Related Party Transactions (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Related Party Transactions [Abstract]
Operating revenues	$ 220,781		$ 668,837
Interest income from the Preferred Interest	1,433		4,353
Principal Payments received on the Preferred Interest	$ 1,313	$ 4,110	$ 3,885

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Related Party Transactions - Summary of Due To (From) Related Parties (Details) $ in Thousands	Dec. 31, 2021 USD ($)
Related Party Transactions [Abstract]
Accounts receivable	$ 190,410
Contract asset	2,246
Preferred Interest	99,838
Contract liability	$ 818,658

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Investments in Unconsolidated Entity - Narrative (Details) $ in Thousands	1 Months Ended				3 Months Ended			9 Months Ended
	Dec. 31, 2022 USD ($)	Nov. 30, 2022 USD ($)	Oct. 31, 2022 USD ($)	Aug. 31, 2022 USD ($)	Sep. 30, 2022 USD ($) mi	Dec. 31, 2021 USD ($)	Sep. 30, 2021 USD ($)	Sep. 30, 2022 USD ($) mi	Sep. 30, 2021 USD ($)	Oct. 13, 2022	Nov. 04, 2019 USD ($)	Apr. 30, 2018 mi
Schedule of Equity Method Investments
Impairment of equity method investment					$ 583,057		$ 0	$ 583,057	$ 0
Con Edison | Maximum
Schedule of Equity Method Investments
Investment cap											$ 530,000
MVP Joint Venture
Schedule of Equity Method Investments
Impairment of equity method investment								583,000
Reduction in investment						$ 1,200,000
Equity method investment					$ 784,000			$ 784,000
MVP Joint Venture | Beneficial Owner
Schedule of Equity Method Investments
Percentage of ownership interest								66.67%
MVP Project | Con Edison
Schedule of Equity Method Investments
Project target cost								$ 6,600,000
Variable Interest Entity, Not Primary Beneficiary | MVP Joint Venture
Schedule of Equity Method Investments
Impairment of equity method investment						$ 1,900,000
Variable Interest Entity, Not Primary Beneficiary | MVP Joint Venture | EQM
Schedule of Equity Method Investments
Ownership interest					47.10%			47.10%
Variable Interest Entity, Not Primary Beneficiary | MVP Joint Venture | EQM | Scenario, Forecast
Schedule of Equity Method Investments
Ownership interest										48.10%
Variable Interest Entity, Not Primary Beneficiary | MVP Project
Schedule of Equity Method Investments
Capital contribution payable to MVP Joint Venture				$ 40,700
Letter of credit outstanding					$ 219,700			$ 219,700
Variable Interest Entity, Not Primary Beneficiary | MVP Southgate Project
Schedule of Equity Method Investments
Ownership interest					47.20%			47.20%
Letter of credit outstanding					$ 14,200			$ 14,200
Variable Interest Entity, Not Primary Beneficiary | MVP Holdco Project | Subsequent Event
Schedule of Equity Method Investments
Payments to acquire investments		$ 14,700	$ 12,500
Variable Interest Entity, Not Primary Beneficiary | MVP Holdco Project | Scenario, Forecast
Schedule of Equity Method Investments
Payments to acquire investments	$ 13,500
MVP
Schedule of Equity Method Investments
Length of pipeline (in miles) | mi					300			300
MVP | Variable Interest Entity, Not Primary Beneficiary
Schedule of Equity Method Investments
Issuance of performance guarantee, remaining capital obligation, percentage					33.00%			33.00%
MVP Southgate Project
Schedule of Equity Method Investments
Length of pipeline (in miles) | mi												75

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Investments in Unconsolidated Entity - Balance Sheet for the Investment in Unconsolidated Equity (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020
Condensed Consolidated Balance Sheets
Current assets	$ 332,108			$ 446,829
Total assets	10,386,504			10,920,764
Current liabilities	541,243			367,576
Equity	1,441,643	$ 2,036,979	$ 2,038,288	2,010,726	$ 3,659,145	$ 3,644,866	$ 3,680,453	$ 3,681,272
Total liabilities, mezzanine equity and shareholders' equity	10,386,504			10,920,764
Variable Interest Entity, Not Primary Beneficiary | Equity Method Investment, Nonconsolidated Investee or Group of Investees
Condensed Consolidated Balance Sheets
Current assets	53,381			148,820
Non-current assets	6,675,168			6,432,288
Total assets	6,728,549			6,581,108
Current liabilities	115,062			160,331
Equity	6,613,487			6,420,777
Total liabilities, mezzanine equity and shareholders' equity	$ 6,728,549			$ 6,581,108

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Investments in Unconsolidated Entity - Income Statement for the Investment in Unconsolidated Equity (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Schedule of Equity Method Investments
Net (loss) income	$ (503,596)	$ 90,905	$ (324,882)	$ 207,623
Variable Interest Entity, Not Primary Beneficiary | Equity Method Investment, Nonconsolidated Investee or Group of Investees
Schedule of Equity Method Investments
Operating (expenses) income	(20)	(201)	20	(351)
Net interest income	120	5,517	172	9,402
AFUDC - equity	0	12,862	0	21,904
Net (loss) income	$ 100	$ 18,178	$ 192	$ 30,955

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Debt - Amended EQM Revolving Credit Facility and 2019 EQM Term Loan Agreement (Details) - USD ($)		3 Months Ended		9 Months Ended
	Jan. 07, 2021	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021	Jan. 08, 2021
Debt Instrument
Letters of credit outstanding		$ 395,000,000		$ 395,000,000		$ 505,000,000
EQM Credit Facility
Debt Instrument
Maximum borrowing capacity		2,160,000,000		2,160,000,000
EQM | EQM Credit Facility | Revolving Credit Facility
Debt Instrument
Borrowings outstanding		100,000,000		100,000,000		225,000,000
Letters of credit outstanding		$ 234,900,000		$ 234,900,000		$ 234,900,000
Weighted average annual interest rate		4.80%	2.70%	3.80%	2.60%
EQM | Line of credit | EQM Credit Facility
Debt Instrument
Maximum borrowing capacity		$ 1,550,000,000		$ 1,550,000,000
Maximum amount of short term loans outstanding		190,000,000	$ 390,000,000	280,000,000	$ 525,000,000
Average daily balance of short term loans outstanding		143,000,000	358,000,000	176,000,000	440,000,000
Payment commitment fees		$ 2,300,000	$ 1,700,000	6,100,000	$ 5,600,000
EQM | Letter of credit | EQM Credit Facility
Debt Instrument
Maximum amount of short term loans outstanding				$ 0
EQM | Unsecured Debt | 2019 Term Loan Facility
Debt Instrument
Weighted average annual interest rate	2.40%
EQT Midstream Partners LP | 2019 EQM Term Loan Agreement
Debt Instrument
Principal							$ 1,400,000,000

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Debt - Eureka Credit Facility (Details) - Eureka Midstream, LLC - Line of credit - Eureka Credit Facility - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021	May 13, 2021
Debt Instrument
Maximum borrowing capacity						$ 400.0
Borrowings outstanding	$ 295.0		$ 295.0		$ 280.0
Maximum amount of short term loans outstanding	295.0	$ 300.0		$ 315.0
Average daily balance of short term loans outstanding	$ 290.0	$ 299.0	$ 296.0	$ 305.0
Weighted average annual interest rate	4.80%	2.80%	4.30%	2.50%
Payment commitment fees	$ 0.1	$ 0.1	$ 0.4	$ 0.3

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Debt - 2022 Senior Notes (Details) - EQM Senior notes - USD ($)		3 Months Ended
	Jun. 07, 2022	Mar. 31, 2021	Sep. 30, 2022	Jun. 14, 2022	Jun. 10, 2022	Jan. 15, 2021
7.50% Senior Notes Due 2027
Debt Instrument
Principal	$ 500,000,000
Interest rate	7.50%
7.50% Senior Notes Due 2030
Debt Instrument
Principal	$ 500,000,000
Interest rate	7.50%
6.00% Senior Notes Due 2025
Debt Instrument
Interest rate			6.00%
6.00% Senior Notes Due 2025 | EQT Midstream Partners LP
Debt Instrument
Principal			$ 200,000,000	$ 300,000,000
4.00% Senior Notes Due 2024
Debt Instrument
Interest rate			4.00%
4.00% Senior Notes Due 2024 | EQT Midstream Partners LP
Debt Instrument
Principal				200,000,000
EQM 4.75% Senior Notes Due 2023
Debt Instrument
Interest rate			4.75%
EQM 4.75% Senior Notes Due 2023 | EQT Midstream Partners LP
Debt Instrument
Principal	$ 496,800,000	$ 500,000,000	$ 300,000,000		$ 4,300,000	$ 500,000,000
Debt issuance costs	506,700,000				$ 4,400,000	$ 537,000,000
2022 Senior Notes
Debt Instrument
Net proceeds from offering	984,500,000
Discount	12,500,000
Debt issuance costs	$ 3,000,000
Redemption percentage rate	1.01
2022 Senior Notes | EQT Midstream Partners LP
Debt Instrument
Principal			501,100,000
2021 Senior Notes
Debt Instrument
Net proceeds from offering		1,876,500,000
Discount		19,000,000
Debt issuance costs		$ 4,500,000
4.00% Senior Notes Due 2024 and 6.00% Senior Notes Due 2025 | EQT Midstream Partners LP
Debt Instrument
Principal			$ 500,000,000
Debt issuance costs				$ 509,000,000

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Debt - 2022 Tender Offers (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Jun. 14, 2022	Jun. 10, 2022	Jun. 07, 2022	Mar. 31, 2021	Jan. 15, 2021
Debt Instrument
Loss on extinguishment of debt	$ 0	$ 0	$ 24,937,000	$ 41,025,000
EQT Midstream Partners LP | EQM Senior notes | 4.00% Senior Notes Due 2024 and 6.00% Senior Notes Due 2025
Debt Instrument
Principal	500,000,000		500,000,000
Debt issuance costs					$ 509,000,000
EQT Midstream Partners LP | EQM Senior notes | EQM 4.75% Senior Notes Due 2023
Debt Instrument
Principal	300,000,000		300,000,000			$ 4,300,000	$ 496,800,000	$ 500,000,000	$ 500,000,000
Debt issuance costs						$ 4,400,000	$ 506,700,000		$ 537,000,000
Loss on extinguishment of debt			24,900,000	$ 41,000,000
EQT Midstream Partners LP | EQM Senior notes | 4.00% Senior Notes Due 2024
Debt Instrument
Principal					200,000,000
EQT Midstream Partners LP | EQM Senior notes | 6.00% Senior Notes Due 2025
Debt Instrument
Principal	$ 200,000,000		$ 200,000,000		$ 300,000,000

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Debt - 2021 Senior Notes (Details) - EQM Senior notes - USD ($)	3 Months Ended
	Mar. 31, 2021	Sep. 30, 2022	Jun. 10, 2022	Jun. 07, 2022	Jan. 15, 2021
4.50% Senior Notes Due 2029
Debt Instrument
Principal	$ 800,000,000
Interest rate	4.50%
4.75% Senior Notes Notes Due 2031
Debt Instrument
Principal	$ 1,100,000,000
Interest rate	4.75%
2021 Senior Notes
Debt Instrument
Net proceeds from offering	$ 1,876,500,000
Discount	19,000,000
Debt issuance costs	4,500,000
EQM 4.75% Senior Notes Due 2023
Debt Instrument
Interest rate		4.75%
EQM 4.75% Senior Notes Due 2023 | EQT Midstream Partners LP
Debt Instrument
Principal	$ 500,000,000	$ 300,000,000	$ 4,300,000	$ 496,800,000	$ 500,000,000
Debt issuance costs			$ 4,400,000	$ 506,700,000	$ 537,000,000

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Debt - Tender Offer (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Jun. 10, 2022	Jun. 07, 2022	Mar. 31, 2021	Jan. 15, 2021
Debt Instrument
Loss on extinguishment of debt	$ 0	$ 0	$ 24,937,000	$ 41,025,000
EQM 4.75% Senior Notes Due 2023 | EQT Midstream Partners LP | EQM Senior notes
Debt Instrument
Principal	$ 300,000,000		300,000,000		$ 4,300,000	$ 496,800,000	$ 500,000,000	$ 500,000,000
Debt issuance costs					$ 4,400,000	$ 506,700,000		$ 537,000,000
Loss on extinguishment of debt			$ 24,900,000	$ 41,000,000

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Fair Value Measurements (Details) $ in Millions		3 Months Ended		9 Months Ended
	Jul. 08, 2022 USD ($)	Sep. 30, 2022 USD ($)	Sep. 30, 2021 USD ($)	Sep. 30, 2022 USD ($)	Sep. 30, 2021 USD ($)	Dec. 31, 2021 USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Option to forgo fee relief, year one	$ 145.0
Option to forgo fee relief, year two	90.0
Cash payment to be made in exchange for fee relief	$ 195.8
Gain (loss) on derivative instrument		$ (2.4)	$ 21.3	$ 17.8	$ 37.9
EQM | Fair Value | Level 3 | EES
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Preferred interest		95.5		95.5		$ 117.0
EQM | Carrying Value | Level 3 | EES
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Preferred interest		95.7		95.7		100.0
EQM Senior notes | EQM | Fair Value | Level 2 | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Long-term debt		5,666.7		5,666.7		7,060.5
EQM Senior notes | EQM | Carrying Value | Level 2 | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Long-term debt		6,431.3		6,431.3		6,434.9
Henry Hub cash payment
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Derivative instrument, at fair value		$ 69.4		$ 69.4		$ 51.6
Market quoted volatility | Volatility
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Volatility rate		0.60		0.60

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Earnings Per Share - Narrative (Details) - shares shares in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Class of Stock
Potentially dilutive securities (in shares)	30,862	30,018	30,800	30,018
Phantom Share Units (PSUs)
Class of Stock
Incremental common shares attributable to dilutive effect of share-based payment arrangements (in shares)	567	498	599	495

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Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021
Valuation Allowance [Line Items]
Effective tax rate	0.30%	26.20%	(2.70%)	23.90%
Income tax expense related to changes in valuation allowances			$ 54.5
Income tax benefit related to changes in future corporate net income tax rates			22.9
Valuation allowance	$ 152.1		152.1		$ 97.6
Federal and State Tax Authority
Valuation Allowance [Line Items]
Income tax expense related to changes in valuation allowances			$ 77.4