10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, DC 20549

_____________________________________

FORM 10-Q

_____________________________________

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

For the quarterly period ended March 31, 2019

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: 333-173751

_______________________________________

ALTA MESA HOLDINGS, LP

(Exact name of registrant as specified in its charter)

_______________________________________

Texas	20-3565150
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification No.)
15021 Katy Freeway, Suite 400, Houston, Texas	77094
(Address of principal executive offices)	(Zip Code)

Registrant’s telephone number, including area code: 281-530-0991

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  x

(Explanatory Note: The registrant is a voluntary filer and is not subject to the filing requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934. However, the registrant 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 would have been required to file such reports, as if it were subject to such filing requirements.)

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  x    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	¨	Non-accelerated filer	¨
Smaller reporting company	¨	Emerging growth company	x

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 x

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

Title of each class	Trading Symbol(s)	Name of each exchange on which registered
None	None	None

TABLE OFCONTENTS

	Page Number
Glossary	i
Cautionary Statement Regarding Forward-Looking Statements	1
PART I - FINANCIAL INFORMATION
Item 1. Financial Statements (unaudited)	3
Condensed Consolidated Statements of Operations	3
Condensed Consolidated Balance Sheets	4
Condensed Consolidated Statements of Changes in Partners’ Capital	5
Condensed Consolidated Statements of Cash Flows	6
Notes to Condensed Consolidated Financial Statements	7
Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations	22
Item 3. Quantitative and Qualitative Disclosures about Market Risk	31
Item 4. Controls and Procedures	32
PART II - OTHER INFORMATION
Item 1. Legal Procedures	33
Item 1A. Risk Factors	33
Item 2. Unregistered Sales of Equity Securities and Use of Proceeds	33
Item 3. Defaults Upon Senior Securities	33
Item 4. Mine Safety Disclosures	33
Item 5. Other Information	33
Item 6. Exhibits	34
Signatures	35

Glossary of Terms

The definitions and abbreviations set forth below apply to the indicated terms throughout this filing.

2024 Notes -	$500 million aggregate principal amount of 7.875% senior unsecured notes due December 2024.
Alta Mesa RBL -	Alta Mesa Eighth Amended and Restated Credit Agreement with Wells Fargo Bank, National Association, as administrative agent.
Basin -	A large natural depression on the earth’s surface in which sediments generally brought by water accumulate.
bbl -	One stock tank barrel, of 42 U.S. gallons liquid volume, used herein to describe volumes of crude oil, condensate or natural gas liquids.
bbld -	Barrels per day.
Bcf -	One billion cubic feet of natural gas.
Bcfe -	One billion cubic feet of natural gas equivalent with one barrel of oil converted to six thousand cubic feet of natural gas. The ratio of six thousand cubic feet of natural gas to one bbl of oil or natural gas liquids is commonly used in the oil and natural gas business and represents the approximate energy equivalency of six thousand cubic feet of natural gas to one bbl of oil or natural gas liquids.
Boe -	One barrel of oil equivalent is determined using the ratio of six Mcf of natural gas to one barrel of oil, condensate or natural gas liquids. The ratio of six Mcf of natural gas to one Bbl of oil or natural gas liquids is commonly used in our business and represents the approximate ratio at energy content, and does not represent the price equivalency of natural gas to oil or natural gas liquids.
Boed -	One Boe per day.
Btu or British Thermal Unit -	The quantity of heat required to raise the temperature of one pound of water by one degree Fahrenheit.
Completion -	The process of treating a drilled well followed by the installation of permanent equipment for the production of natural gas or oil.
Condensate -	A mixture of hydrocarbons that exists in the gaseous phase at original reservoir temperature and pressure, but that, when produced, is in the liquid phase at surface pressure and temperature.
DD&A -	Depreciation, depletion and amortization.
Developed acreage -	The number of acres that are allocated or assignable to productive wells or wells capable of production.
Developed oil and natural gas reserves -	Developed oil and natural gas reserves are reserves that can be expected to be recovered; through existing wells with existing equipment and operating methods or in which the cost of the related equipment is relatively minor compared to the cost of a new well.
Development costs -	Costs incurred to obtain access to proved reserves and to provide facilities for extracting, treating, gathering and storing the oil and natural gas.
Development well -	A well drilled within the proved area of an oil or natural gas reservoir to the depth of a stratigraphic horizon known to be productive.
Differential -	An adjustment to the market reference price of oil, natural gas or natural gas liquids from an established spot market price to reflect differences in the quality and/or location of oil or natural gas.
Dry hole -	A well found to be incapable of producing hydrocarbons in commercial quantities.
Dry hole costs -	Costs incurred in drilling an unsuccessful well, including plugging and abandonment costs.
Dth -	A dekatherm is a unit of energy used primarily to measure natural gas and is equal to 1,000,000 Btu.
Dthd -	1,000,000 Btu per day.
EBITDAX -	Earnings before interest, taxes, depreciation, depletion, amortization and exploration expenses.
Enhanced recovery -	The recovery of oil and natural gas through the injection of liquids or gases into the reservoir, supplementing its natural energy. Enhanced recovery methods are often applied when production slows due to depletion of the natural pressure.

i

Exploitation -	A development or other project which may target proven or unproven reserves (such as probable or possible reserves), but which generally has a lower risk than that associated with exploration projects.
Exploratory well -	A well drilled to find a new field or to find a new reservoir.  Generally, an exploratory well is any well that is not a development well, an extension well, a service well or a stratigraphic test well.
Field -	An area consisting of a single reservoir or multiple reservoirs all grouped on, or related to, the same individual geological structural feature or stratigraphic condition. The field name refers to the surface area, although it may refer to both the surface and the underground productive formations.
Formation -	A layer of rock which has distinct characteristics that differs from adjacent rock.
Fracing, fracture stimulation technology, hydraulic fracturing -	A well stimulation technique to improve a well’s production by pumping a mixture of fluids into the formation to create hydraulic fractures which intersect existing natural fractures. As part of this technique, sand or other material may also be injected to keep the hydraulic fracture open, so that fluids or natural gases may more easily flow through the formation.
Gross acres or gross wells -	The total acres or wells in which a working interest is owned.
Held by production -	Acreage covered by mineral leases that perpetuates a company’s right to operate a property usually requiring production to be maintained at a minimum paying quantity of production.
Horizontal drilling -	A drilling technique used in certain formations where a well is drilled vertically to a certain depth and then drilled at an angle within a specified interval.
Lease operating expenses -	The expenses of lifting oil or natural gas from a producing formation to the surface, constituting part of the current operating expenses of a well. Such expenses include labor, supplies, repairs, utilities, environmental and safety, maintenance, allocated overhead costs, severance taxes, insurance and other expenses incidental to production, but excluding lease acquisition, drilling or completion expenses.
Mbbl -	One thousand barrels of crude oil, condensate, natural gas liquids, or produced water.
Mbblsd -	One thousand barrels per day.
MBoe -	One thousand boe.
MBoed -	One thousand boe per day.
Mcf -	One thousand cubic feet of natural gas.
Mcfd -	One thousand cubic feet per day.
Mcfe -	One thousand cubic feet equivalent determined using the ratio of one barrel of oil, condensate or natural gas liquids to six Mcf of natural gas.
Mcfed -	Mcfe per day.
MMBbl -	One million barrels of crude oil, condensate or natural gas liquids.
MMBtu -	One million British thermal units.
MMBtud -	One million British thermal units per day.
MMcf -	One million cubic feet of natural gas.
MMcfd -	One million cubic feet per day.
Net acres -	The total acres a working interest owner has attributable to a particular number of acres, or a specified tract.
Net production -	Production that is owned by us after royalties and production attributable to other owners.
Net revenue interest -	A working interest owner’s gross working interest in production less the royalty, overriding royalty, production payment and net profits interest.
NGLs or natural gas liquids -	Natural gas liquids are a group of hydrocarbons including ethane, propane, normal butane, isobutane and natural gasoline.
Non-operated working interests -	The working interest or fraction thereof in a lease or unit, the owner of which is without operating rights by reason of an operating agreement.
NYMEX -	The New York Mercantile Exchange.
PDNP -	Proved developed non-producing reserves.
PDP -	Proved developed producing reserves.
Predecessor Period	The period from January 1, 2018 through February 8, 2018.

ii

Productive well -	A well that is found to be capable of producing hydrocarbons in sufficient quantities such that proceeds from the sale of the production exceed production expenses and taxes.
Proved developed reserves -	Reserves that can be expected to be recovered through existing wells with existing equipment and operating methods and can be expected to be recovered through extraction technology installed and operational at the time of the reserve estimate.
Proved properties -	Properties with proved reserves.
Proved reserves -	Quantities of oil and natural gas, which, by analysis of geoscience and engineering data, can be estimated with reasonable certainty to be economically producible from known reservoirs, and under existing economic conditions, operating methods and government regulations.
Proved undeveloped reserves ("PUD") -	Reserves that are expected to be recovered from new wells on undrilled acreage, or from existing wells where a relatively major expenditure is required to make the well producible. Such reserves may be established if new proved developed reserves exist and they are expected to contain economically producible oil or gas on the basis of available geoscience and engineering data.
Realized price -	The cash market price less all expected quality, transportation and demand adjustments.
Recompletion -	The process of treating an existing wellbore in an attempt to establish or increase existing production.
Reserves -	Reserves are estimated remaining quantities of oil and gas and related substances anticipated to be economically producible, as of a given date, by application of development projects to known accumulations. In addition, there must exist, or there must be a reasonable expectation that there will exist, the legal right to produce or a revenue interest in the production, installed means of delivering oil and gas or related substances to market, and all permits and financing required to implement the project.
Reservoir -	A porous and permeable underground formation containing a natural accumulation of producible oil and/or natural gas that is confined by impermeable rock or water barriers and is separate from other reservoirs.
Resources -	Quantities of oil and natural gas estimated to exist in naturally occurring accumulations. A portion of the resources may be estimated to be recoverable and another portion may be considered unrecoverable.
Royalty -	An interest in an oil and natural gas lease that gives the owner the right to receive a portion of the production from the leased acreage (or of the proceeds from the sale thereof), but does not require the owner to pay any portion of the production or development costs on the leased acreage.
Service well -	A well drilled or completed for the purpose of supporting production in an existing field. Specific purposes of service wells include gas injection, water injection, steam injection, air injection, produced water disposal, water supply for injection, observation, or injection for in-situ combustion.
Spacing -	The distance between wells producing from the same reservoir. Spacing is often expressed in terms of acres, e.g., 40-acre spacing, and is often established by regulatory agencies.
STACK -	An oilfield in the eastern portion of the Anadarko Basin; STACK is an acronym describing both its location—Sooner Trend Anadarko Basin Canadian and Kingfisher County—and the multiple, stacked productive formations present in the area.
Stratigraphic test well -	A drilling effort, geologically directed, to obtain information pertaining to a specific geologic condition. Such wells customarily are drilled without the intent of being completed for hydrocarbon production. The classification also includes tests identified as core tests and all types of expendable holes related to hydrocarbon exploration. Stratigraphic tests are classified as “exploratory type” if not drilled in a known area or “development type” if drilled in a known area.
Success rate -	The percentage of wells drilled which produce hydrocarbons in commercial quantities.
Successor Period -	The period from February 9, 2018 through December 31, 2018, and all periods thereafter.
Undeveloped acreage -	Lease acreage on which wells have not been drilled or completed to a point that would permit the production of commercial quantities of oil and natural gas regardless of whether such acreage contains proved reserves.
Unit -	The joining of all or substantially all interests in a reservoir or field, rather than a single tract, to provide for development and operation without regard to separate property interests. Also, the area covered by a unitization agreement.
Unproved properties -	Properties with no proved reserves.
VWAP -	Volume weighted average price.

iii

Waterflood -	The injection of water into an oil reservoir to “sweep” additional oil out of the reservoir rock and into the wellbores of producing wells. Typically, an enhanced recovery process.
Working interest -	The right granted to the lessee of a property to explore for and to produce and own natural gas or other minerals. The working interest owners bear the exploration, development, and operating costs.
Workover -	Operations on a producing well to restore or increase production.

iv

Cautionary Statement Regarding Forward-Looking Statements

The information in this Quarterly Report includes “forward-looking statements” within the meaning of Section 27A of the Securities Act of 1933, as amended (the “Securities Act”), and Section 21E of the Securities Exchange Act of 1934, as amended (the “Exchange Act”). All statements, other than statements of historical fact included in this Quarterly Report, regarding our ability to continue as a going concern, strategy, future operations, financial position, estimated revenue and losses, projected costs, prospects, plans and objectives of management are forward-looking statements. When used in this Quarterly Report, the words “could”, “should”, “will”, “plan”, “believe”, “anticipate”, “intend”, “estimate”, “expect”, “project,” the negative of such terms and other similar expressions are intended to identify forward-looking statements, although not all forward-looking statements contain such identifying words. These forward-looking statements are based on our current expectations and assumptions about future events and are based on currently available information as to the outcome and timing of future events. When considering forward-looking statements, you should keep in mind the risk factors and other cautionary statements described under the heading “Risk Factors” included in Part II, Item 1A of our Annual Report on Form 10-K for the year ended December 31, 2018. These forward-looking statements are based on management’s current belief, based on currently available information, as to the outcome and timing of future events.

Forward-looking statements may include statements about:

• our and our parent’s ability to continue as a going concern;

• the sufficiency of our liquidity position to ensure financial flexibility and fund our operations and capital expenditures;

• our ability to comply with or otherwise obtain waivers of the covenants in our debt agreements;

• our business strategy;

• our reserve quantities and the present value of our reserves;

• our exploration and drilling prospects, inventories, projects and programs;

• our drilling, completion and production technology;

• our ability to replace the reserves we produce through drilling and through acquisitions;

• future oil and gas prices;

• the supply and demand for our production;

• the timing and amount of our future production;

• our hedging strategy and ability to continue hedging expected results;

• competition and government regulation;

• our ability to obtain permits and governmental approvals;

• expected or anticipated changes in the Oklahoma forced pooling system;

• pending legal, regulatory and environmental matters and litigation;

• our future drilling plans, spacing plans and development pace;

• our marketing of our production;

• our leasehold or business acquisitions;

• our costs of developing our properties;

• our ability to hire, train or retain qualified personnel;

• general economic conditions;

• operating hazards and other risks incidental to transporting, storing, gathering and processing natural gas, natural gas liquids, and crude oil;

• our future operating results, including production levels, initial production rates and yields in our type curve areas;

• the costs, terms and availability of midstream services;

• our plans, objectives, expectations and intentions contained in this Quarterly Report that are not historical; and

• our ability to collect receivables from High Mesa.

We caution you that any forward-looking statements are subject to all of the risks and uncertainties, most of which are difficult to predict and many of which are beyond our control, incident to the exploration for and development, production, gathering and sale of oil, natural gas and natural gas liquids. Some factors that could cause actual results to differ materially from those expressed or implied by these forward looking statements include, but are not limited to, commodity price volatility, global economic conditions, including supply and demand levels for oil, gas and NGLs, inflation, increased operating costs, lack of availability of drilling and production equipment, supplies, services and qualified personnel, liabilities resulting from litigation or the SEC investigation, difficulties in obtaining necessary approvals and permits, uncertainties related to new technologies, geographical concentration of our operations, environmental risks, weather risks, security risks, drilling and other operating risks, regulatory changes, the uncertainty inherent in estimating oil and gas reserves and in projecting future rates of production, reductions in cash flow, lack of access to capital, our ability to satisfy future cash obligations, restrictions in our debt agreements, the timing of development expenditures, managing our growth and integration of acquisitions, cyber-attacks,

1

failure to realize expected value creation from property acquisitions, title defects, limited control over non-operated properties, and the other risks described in Item 1A. Risk Factors of our Annual Report on Form 10-K for the year ended December 31, 2018 (the “2018 10-K”).

Estimating reserve quantities of oil, natural gas and NGLs is complex, inexact and relies on interpretations of geologic, geophysical, engineering and production data. The extent, quality, reliability and interpretation of these data can vary. The process also requires making a number of economic assumptions, such as sales prices, the relative mix of oil, natural gas and NGLs that will be ultimately produced, drilling and operating costs, capital expenditures, the effect of government regulation, taxes and availability of funds.  Future prices received for production and costs may vary, perhaps significantly, from the assumptions used in our estimates.  In addition, the results of drilling, testing and production activities may justify revisions of estimates that were made previously. If significant, such revisions would change the schedule of development and related production. Accordingly, reserve estimates may differ significantly from the quantities of oil and gas that are ultimately recovered.

Should one or more of the risks or uncertainties described in this Quarterly Report or in the 2018 10-K occur, or should underlying assumptions prove incorrect, our actual results and plans could differ materially from those expressed in any forward-looking statements.

Except as otherwise required by applicable law, we disclaim any duty to update any forward-looking statements, all of which are expressly qualified by the statements in this section, to reflect events or circumstances occurring after the date of this Quarterly Report.

2

PART I - FINANCIAL INFORMATION

Item 1. Financial Statements

ALTA MESA HOLDINGS, LP AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited)

(in thousands)

	Successor						Predecessor
	Three Months Ended March 31, 2019			February 9, 2018 Through March 31, 2018			January 1, 2018 Through February 8, 2018
Revenue
Oil	$	86,363		$	40,278		$	30,972
Natural gas	18,450			5,210			4,276
Natural gas liquids	11,216			4,714			4,000
Other	568			555			888
Operating revenue	116,597			50,757			40,136
Gain on sale of assets	1,483			5,139			840
Gain (loss) on derivatives	(23,777		)	(22,011		)	6,663
Total revenue	94,303			33,885			47,639
Operating expenses
Lease operating	25,108			8,317			4,408
Transportation and marketing	17,761			5,582			3,725
Production taxes	5,483			1,415			953
Workovers	197			1,245			423
Exploration	2,054			1,585			7,003
Depreciation, depletion and amortization	34,675			11,038			11,670
General and administrative	20,947			34,654			21,234
Total operating expenses	106,225			63,836			49,416
Operating income	(11,922		)	(29,951		)	(1,777		)
Other income (expense)
Interest expense	(12,830		)	(5,196		)	(5,511		)
Interest income and other	27			546			172
Total other expense, net	(12,803		)	(4,650		)	(5,339		)
Loss from continuing operations	(24,725		)	(34,601		)	(7,116		)
Loss from discontinued operations, net of tax	—			—			(7,746		)
Net loss	$	(24,725	)	$	(34,601	)	$	(14,862	)

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

3

ALTA MESA HOLDINGS, LP AND SUBSIDIARIES

CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited)

(in thousands)

໿

	March 31, 2019		December 31, 2018
ASSETS
Current assets
Cash and cash equivalents	$	27,045	$	12,984
Restricted cash	798		1,001
Accounts receivable, net	65,403		68,370
Other receivables	2,239		6,267
Related party receivables, net	17,126		24,282
Notes receivable from related party, net	—		—
Prepaid expenses and other current assets	4,549		747
Derivatives	—		16,423
Total current assets	117,160		130,074
Property and equipment
Oil and gas properties, successful efforts method, net	777,750		763,337
Other property and equipment, net	38,099		38,147
Total property and equipment, net	815,849		801,484
Other assets
Operating lease right-of-use assets, net	14,758		—
Deferred financing costs, net	1,115		1,151
Deposits and other long-term assets	48		63
Derivatives	461		2,947
Total other assets	16,382		4,161
Total assets	$	949,391	$	935,719

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

	March 31, 2019			December 31, 2018
LIABILITIES AND PARTNERS’ CAPITAL
Current liabilities
Accounts payable and accrued liabilities	$	108,666		$	197,064
Accounts payable - related party	481			3,425
Advances from non-operators	2,367			5,193
Advances from related party	4,479			9,822
Asset retirement obligations	48			2,079
Current operating lease liability	895			—
Derivatives	5,057			1,710
Total current liabilities	121,993			219,293
Long-term liabilities
Asset retirement obligations, net of current portion	11,750			9,330
Long-term debt, net	805,892			690,123
Operating lease liabilities, net of current portion	13,962			—
Derivatives	2,065			180
Total long-term liabilities	833,669			699,633
Total liabilities	955,662			918,926
Commitments and contingencies (Note 13)
Partners’ capital	(6,271		)	16,793
Total liabilities and partners’ capital	$	949,391		$	935,719

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

4

ALTA MESA HOLDINGS, LP AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN PARTNERS’ CAPITAL (Unaudited)

(in thousands)

໿

	Predecessor
Balance, December 31, 2017	$	154,445
Distribution of non-STACK oil and gas assets, net of associated liabilities	43,482
Net loss	(14,862		)
Balance, February 8, 2018	$	183,065
	Successor
Balance, February 9, 2018	$	1,535,891
Contributions	560,344
Equity-based compensation expense	2,768
Net loss	(34,601		)
Balance, March 31, 2018	$	2,064,402
Balance, December 31, 2018	$	16,793
Equity-based compensation expense	1,661
Net loss	(24,725		)
Balance, March 31, 2019	$	(6,271	)

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

5

ALTA MESA HOLDINGS, LP AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited)

(in thousands)

	Successor						Predecessor
	Three Months Ended March 31, 2019			February 9, 2018 Through March 31, 2018			January 1, 2018 Through February 8, 2018
Cash flows from operating activities:
Net loss	$	(24,725	)	$	(34,601	)	$	(14,862	)
Adjustments to reconcile net loss to cash from operating activities:
Depreciation, depletion, amortization and ARO accretion	34,675			11,038			12,554
Non-cash lease expense	99			—			—
Provision for uncollectible related party receivables	853			—			—
Impairments	—			—			5,560
Amortization of deferred financing costs	45			—			171
Amortization of debt premium discount	(1,231		)	(820		)	—
Equity-based compensation expense	1,661			2,768			—
Expired leases	162			4,189			4,575
(Gain) Loss on derivatives	23,777			22,011			(6,663		)
Cash settlements of derivatives	365			(3,975		)	(2,296		)
Interest converted into debt	—			—			103
Interest added to notes receivable from affiliate	—			(162		)	(85		)
Loss on sale of fixed assets	—			—			1,923
Impact on cash from changes in:
Accounts receivable	2,968			3,097			(21,184		)
Other receivables	4,029			1,427			(662		)
Receivables from affiliate and related party	6,303			(7,880		)	(117		)
Prepaid expenses and other non-current assets	(3,787		)	(2,240		)	(591		)
Advances from related party	(5,344		)	(7,008		)	24,116
Settlement of asset retirement obligations	(147		)	(166		)	(63		)
Accounts payable to related party	(2,944		)	(1,824		)	—
Accounts payable, accrued liabilities and other liabilities	(6,824		)	(35,165		)	23,857
Cash from operating activities	29,935			(49,311		)	26,336
Cash flows from investing activities:
Capital expenditures	(133,077		)	(129,310		)	(36,695		)
Acquisitions, net of cash acquired	—			—			(1,218		)
Cash from investing activities	(133,077		)	(129,310		)	(37,913		)
Cash flows from financing activities:
Proceeds from long-term debt borrowings	117,000			—			60,000
Repayments of long-term debt	—			(134,065		)	(43,000		)
Deferred financing costs paid	—			(1,007		)	—
Capital distributions	—			—			(68		)
Capital contributions	—			560,344			—
Cash from financing activities	117,000			425,272			16,932
Net increase in cash, cash equivalents and restricted cash	13,858			246,651			5,355
Cash, cash equivalents and restricted cash, beginning of period	13,985			10,345			4,990
Cash, cash equivalents and restricted cash, end of period	$	27,843		$	256,996		$	10,345

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

6

ALTA MESA HOLDINGS, LP AND SUBSIDIARIES

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

NOTE 1 — DESCRIPTION OF BUSINESS

Alta Mesa Holdings, LP (“Alta Mesa” or “the Company”) is an exploration and production company focused on the acquisition, development, exploration and exploitation of unconventional onshore oil and natural gas reserves in the eastern portion of the Anadarko Basin in Oklahoma commonly referred to as the Sooner Trend Anadarko Basin Canadian and Kingfisher County (“STACK”). Our operations prior to February 9, 2018, also included other oil and natural gas interests in Texas, Idaho, Louisiana and Florida. In connection with our acquisition by Alta Mesa Resources, Inc. (“AMR”), on February 9, 2018 (“the Business Combination”), we distributed the non-STACK oil and gas assets and liabilities to our prior owner, High Mesa Holdings, LP (“High Mesa”), and completed our transition from a diversified asset base composed of a portfolio of conventional assets to an oil and liquids-rich resource unconventional play in the STACK.  Prior to the closing of the Business Combination, we were controlled by High Mesa Inc. (“HMI”).

NOTE 2 — SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Basis of Presentation

All intercompany transactions and accounts have been eliminated. These interim condensed consolidated financial statements are unaudited, but we believe these statements reflect all adjustments necessary for a fair presentation for the periods reported. All such adjustments are of a normal, recurring nature unless otherwise disclosed. These financial statements and disclosures have been prepared in accordance with the SEC’s rules for interim financial statements and do not include all the information and disclosures required by generally accepted accounting principles (“GAAP”) for complete financial statements. These financial statements should be read in conjunction with the audited consolidated financial statements and notes thereto included in our 2018 10-K. The results for the three months ended March 31, 2019, are not necessarily indicative of the results to be expected for the full year. We have no items of other comprehensive income during any period presented. 

Recently Issued Accounting Standards Applicable to Us

Adopted

Effective January 1, 2019, we adopted ASU No. 2016-02, Leases (Topic 842) (“ASU 2016-02”), which requires that lessees recognize a lease liability, which is a lessee’s discounted obligation to make payments under a lease and a right-of-use asset, arising from a lessee’s right to use an asset over the lease term. Upon adoption, we used the modified retrospective method to apply the standard as of January 1, 2019 for existing leases with terms in excess of 12 months entered into prior to January 1, 2019.

Not Yet Adopted

In June 2016, the FASB issued ASU No. 2016-13, Financial Instruments - Credit Losses(Topic 326): Measurement of Credit Losses on Financial Instruments. This standard requires the use of a new “expected credit loss” impairment model rather than the “incurred loss” model we use today. With respect to our trade and notes receivables and certain other financial instruments, we may be required to (i) maintain and use lifetime loss information rather than annual loss data and (ii) forecast future economic conditions and quantify the effect of those conditions on future expected losses. The standard, including related amendments, which will be effective for us on January 1, 2020, also requires additional disclosures regarding the credit quality of our trade and notes receivables and other financial instruments. No determination has yet been made of the impact of this new standard on our financial position or results of operations.

In August 2018, the FASB issued ASU No. 2018-15, Intangibles - Goodwill and Other - Internal-Use Software (Topic 350-40): Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract (“ASU 2018-15”). The amendments in this standard align the requirements for capitalizing implementation costs incurred in a hosting arrangement that is a service contract with the requirements for capitalizing implementation costs incurred to develop or obtain internal use software (and hosting arrangements that include an internal-use software license). Under this new standard, a customer in a hosting arrangement that is a service contract is required to follow the guidance in Subtopic 350-40 to determine which implementation costs to capitalize as a prepaid asset related to the service contract and which costs to expense. The capitalized implementation costs are to be expensed over the term of the hosting arrangement and reflected in the same line in

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the consolidated statement of operations as the fees associated with the hosting element of the arrangement. Similarly, capitalized implementation costs are to be presented in the statement of cash flows in the same line as payments made for fees associated with the hosting element. We will adopt this new standard no later than January 1, 2020, although early adoption is permitted. We are currently evaluating the impact of this new standard on our consolidated financial position and results of operations and have not yet determined when to adopt and whether to apply the new standard retrospectively or prospectively to implementation costs incurred after the date of adoption.

In August 2018, the FASB issued ASU No. 2018-13, Fair Value Measurement (Topic 820) Disclosure Framework - Changes to the Disclosure Requirements for Fair Value Measurement (“ASU 2018-13”), which modifies the disclosure requirements of fair value measurements. ASU 2018-13 is effective for us beginning January 1, 2020. Certain disclosures are required to be applied on a retrospective basis and others on a prospective basis. We do not expect the adoption of this standard to impact our financial position or results of operations.

NOTE 3 — GOING CONCERN

We are required to evaluate our ability to continue as a going concern for a period of one year following the date of issuance of our financial statements. As part of that evaluation, we took into consideration the following factors:

• At March 31, 2019, our current liabilities exceeded our current assets by $4.8 million.

• We have failed to meet the timelines to provide our audited and unaudited financial information under our debt agreements.

• Our 2018 drilling program, much of which involved the drilling of additional wells in close proximity to existing wells, did not meet our expectations for production and recovery. We also experienced an increasing gas-to-oil ratio as a well’s production ages, which has contributed to a lowering of the expected economics of our properties.

• Although our well costs for our 2019 capital program have averaged less than $3.0 million per well, we still expect for our operating cash flow to be less than our capital spending for all of 2019.

• On April 1, 2019, our borrowing base was reduced to $370.0 million under the Alta Mesa RBL and we have no further capacity thereunder. There is risk that future redeterminations could reduce the borrowing base further, which would trigger rateable repayments of excess borrowings over five months. Without additional capital, we will only be able to utilize the cash on hand, which at May 31, 2019 was $93.7 million, to fund development and meet our financial obligations and may be unable to maintain our current levels of production, which could negatively impact our ability over time to service our debt and meet our other obligations. The lenders have an ability to make an optional redetermination ahead of the regular redetermination scheduled in October 2019.

• We anticipate having difficulty meeting our existing leverage covenants during the next 12 months without relief from our lenders. We may be unable to obtain covenant relief or to replace the Alta Mesa RBL with debt that would allow us to meet any attendant covenant requirements.

• We have $500.0 million of unsecured debt in the form of our 2024 Notes, with an interest payment of approximately $20.0 million due in June 2019, which could become an event of default if unpaid within the cure period. The 2024 Notes trade substantially below par value.

• The Class A common stock of our parent company, AMR, has been trading below $1.00 per share since February 22, 2019. On April 3, 2019, AMR was notified by NASDAQ that it was not in compliance with the minimum bid price requirement. Continued trading at these levels may put further pressure on the value of our parent’s common stock and limit our ability to raise additional capital in the equity markets.

The above factors raise substantial doubt about our and our parent’s ability to continue as a going concern. To address this, we have:

• retained financial advisors to assist in evaluating financial alternatives;

• engaged in discussions with the Alta Mesa RBL lenders and their advisors about obtaining covenant relief to address the future expected inability to satisfy the leverage requirement, however, we currently expect that such relief would only be available in connection with a reduction in our borrowing capacity which could further hamper our liquidity;

• considered seeking new sources of financing, however, such efforts have not reached a stage where significant terms have been agreed to;

• engaged in discussions with advisors to a group of holders of the 2024 Notes regarding potential options to address overall leverage, but have not agreed upon any significant strategy or terms; and

• had preliminary discussions with existing capital providers about making additional investments in us but such discussions have not reached a stage of being considered likely or probable of success at this time.

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In light of the above, we believe substantial unresolved doubt exists regarding our ability to continue as a going concern for the next 12 months. We have continued reporting our long-term debt as noncurrent, since a conclusion regarding going concern has no effect on debt compliance.

NOTE 4 — ADOPTION OF ASU NO. 2016-02, LEASES

ASU No. 2016-02 requires us to recognize a right-of-use (“ROU”) asset and a discounted lease liability on the balance sheet for all leases with a term longer than one year. We adopted ASU No. 2016-02 and related guidance using the modified retrospective method to apply the standard as January 1, 2019, and this adoption had no effect on the earlier comparative periods presented. At adoption, we recognized operating lease ROU assets of $15.0 million and operating lease liabilities of $15.0 million. There was no adjustment to retained earnings

We lease office space, office equipment and field equipment, including compressors. Many of our leases include both lease and non-lease components which are primarily management services by the lessors for the underlying assets. All of our leases of office space and office equipment, were classified as operating leases upon adoption. Our leases of field equipment had remaining terms of less than one year at the date of adoption and were not recognized as operating leases on our balance sheet due to our election of the short term lease practical expedient described below. Our leases do not contain any residual value guarantees or restrictive covenants. We do not sublease any of our ROU assets.

Operating fixed lease expenses are recognized on a straight-line basis over the lease term. Variable lease payments, which cannot be determined at the lease commencement date, are not included in ROU assets or lease liabilities and are expensed as incurred.

Upon adoption, we selected the following practical expedients:

Practical expedient package	We did not reassess whether any expired or existing contracts are, or contain, leases.
	We did not reassess the lease classification of any expired or existing leases.
	We did not reassess initial direct costs of any expired or existing leases.
Hindsight practical expedient	We did not elect to use the hindsight practical expedient which allows for the use of hindsight when determining lease term, including option periods, and impairment of operating assets.
Easement expedient	We elected to maintain the current accounting treatment of existing contracts and not reassess whether those contracts met the definition of a lease.
Combining lease and non-lease components expedient	We elected to account for lease and non-lease components as a single component.
Short-term lease expedient	We elected the short-term lease recognition exemption for all classes of underlying assets. Expense for short-term leases is recognized on a straight-line basis over the lease term. Leases with an initial term of 12 months or less and that do not include an option to purchase the underlying asset that is reasonably certain to be recognized are not recorded on the balance sheet.

As most leases do not have readily determinable implicit rates, we estimated the incremental borrowing rates for our future lease payments based on prevailing financial market conditions at the later of date of adoption or lease commencement, comparable companies and credit analysis and management judgments to determine the present values of our lease payments. We also apply the portfolio approach to account for leases with similar terms. At March 31, 2019, for our operating leases the weighted-average remaining lease terms were approximately 8.3 years and our weighted-average discount rates were 14.3%.

The following summarizes the components of our lease expense:

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(in thousands)	Three Months Ended March 31, 2019
Operating lease cost	$	811
Variable lease cost	323
Short-term lease cost	2,187
Total lease cost	$	3,321

For the three months ended March 31, 2019, we recognized $2.3 million of lease costs in lease operating expense and $1.0 million in general and administrative expense.

Maturities of our operating lease liabilities were as follows as of March 31, 2019:

Fiscal year	(in thousands)
Remainder of 2019	$	2,200
2020	2,965
2021	2,942
2022	3,010
2023	2,718
Thereafter	12,647
Total lease payments	26,482
Less: imputed interest	(11,625		)
Present value of operating lease liabilities	$	14,857
Current portion of operating lease liabilities	$	895
Operating lease liabilities, net of current portion	13,962
Present value of operating lease liabilities	$	14,857

As described further in our 2018 Annual Report on Form 10-K, our minimum future contractual lease payments under ASC 840 at December 31, 2018 were $2.8 million for 2019, $2.9 million for 2020, $2.9 million for 2021, $3.1 million for 2022, $3.0 million for 2023 and $12.2 million thereafter.

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NOTE 5 — SUPPLEMENTAL CASH FLOW INFORMATION

	Successor						Predecessor
(in thousands)	Three Months Ended March 31, 2019			February 9, 2018 Through March 31, 2018			January 1, 2018 Through February 8, 2018
Supplemental cash flow information:
Cash paid for interest	$	1,750		$	1,092		$	1,145
Non-cash investing and financing activities:
Increase in asset retirement obligations	314			421			—
Increase (decrease) in accruals or payables for capital expenditures	(84,162		)	(36,866		)	4,896
Distribution of non-STACK assets, net of liabilities	—			—			43,482

The following table summarizes cash, cash equivalents and restricted cash in the statements of cash flows:  

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	Successor				Predecessor
(in thousands)	March 31, 2019		March 31, 2018		February 8, 2018
Cash and cash equivalents	$	27,045	$	255,701	$	9,070
Restricted cash	798		1,295		1,275
Total cash, cash equivalents and restricted cash	$	27,843	$	256,996	$	10,345

NOTE 6 — RECEIVABLES

Accounts Receivable

(in thousands)	March 31, 2019			December 31, 2018
Production sales	$	32,332		$	31,532
Joint interest billings	18,224			18,147
Pooling interest (1)	14,960			18,786
Allowance for doubtful accounts	(113		)	(95		)
Total accounts receivable, net	$	65,403		$	68,370

_________________

(1) Pooling interest relates to Oklahoma’s forced pooling process which permits mineral interest owners the option to participate in the drilling of proposed wells.  The pooling interest listed above represents unbilled costs for wells where the option remains pending.  Depending upon the mineral owner’s decision, these costs will be billed to them or added to oil and gas properties.

Related Party Receivables

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(in thousands)	March 31, 2019			December 31, 2018
Related party receivables	$	27,013		$	33,316
Allowance for doubtful accounts	(9,887		)	(9,034		)
Related party receivables, net	17,126			24,282
Notes receivable from related parties	13,403			13,403
Allowance for doubtful accounts	(13,403		)	(13,403		)
Notes receivable from related parties, net	—			—
Total related party receivables, net	$	17,126		$	24,282

KFM Receivables

We have entered into a Crude Oil Gathering Agreement and a Gas Gathering and Processing Agreement with KFM. During the three months ended March 31, 2019, the period February 9, 2018 through March 31, 2018, and the Predecessor Period January 1, 2018 through February 8, 2018, we incurred $15.2 million, $4.6 million, and $3.1 million, respectively, in transportation and marketing expenses related to these agreements. Additionally, related party receivables from KFM for the marketing of our processed natural gas and NGLs were $2.3 million and $7.8 million at March 31, 2019 and December 31, 2018, respectively.

In addition, we sold a produced water disposal system to KFM during the fourth quarter of 2018. As of March 31, 2019 and December 31, 2018, related party receivables included $9.1 million and $8.7 million, respectively, attributable to a purchase price adjustment due from KFM. We collected these amounts during June 2019.

We incur general and administrative costs that may be partially or fully allocable to KFM. These costs are either allocated monthly or charged directly to KFM but are cash settled in arrears. As of March 31, 2019 and December 31, 2018, respectively, we have receivables from KFM for such costs totaling $1.9 million and $3.4 million, respectively.

AMR Receivables

We incur general and administrative costs that may be partially or fully allocable to AMR. These costs are either allocated monthly or charged directly to AMR but are cash settled in arrears. As of March 31, 2019 and December 31, 2018, respectively, we have receivables from AMR for such costs totaling $3.8 million and $3.3 million, respectively.

Management Services Agreement with High Mesa

Just prior to the Business Combination, we distributed the non-STACK oil and gas assets to High Mesa. High Mesa and certain of its subsidiaries agreed to indemnify and hold us harmless from any liabilities associated with those non-STACK oil and gas assets, regardless of when those liabilities arose. We also entered into a management services agreement (the “High Mesa Agreement”) with HMI with respect to the non-STACK assets. Under the High Mesa Agreement, during the 180-day period following the Closing (the “Initial Term”), we agreed to provide certain administrative, management and operational services necessary to manage the business of HMI and its subsidiaries (the “Services”). Thereafter, the High Mesa Agreement automatically renewed for additional consecutive 180-day periods (each a “Renewal Term”), unless terminated by either party upon at least 90-days written notice to the other party prior to the end of the Initial Term or any Renewal Term. As compensation for the Services, HMI agreed to pay us each month (i) a management fee of $10,000 and (ii) an amount equal to any and all costs and expenses incurred in connection with providing the Services.

Although the automatic renewal of this agreement occurred in the third quarter of 2018, the parties subsequently reached agreement to terminate the High Mesa Agreement, effective January 31, 2019. Through April 1, 2019, we were obligated to take all actions that HMI reasonably requested to effect the transition of the Services from us to a successor service provider. During the transition period, HMI agreed to pay us (i) for all Services performed, (ii) an amount equal to our costs and expenses incurred in connection with providing the Services as provided for in the approved budget and (iii) an amount equal to our costs and expenses reimbursable pursuant to the High Mesa Agreement. As of March 31, 2019, and December 31, 2018, approximately $9.9 million and $10.1 million, respectively, were due from HMI for reimbursement of costs and expenses which are recorded as “Related party receivables, net” in the balance sheets. HMI has disputed certain of the amounts we billed. There is no guarantee that HMI will pay the amounts it owes. In addition, our ability to collect these amounts or future amounts

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that may become due pursuant to indemnification obligations may be adversely impacted by liquidity and solvency issues at HMI. As a result of these circumstances, we have recognized an allowance for uncollectible accounts of $9.9 million and $9.0 million as of March 31, 2019 and December 31, 2018, respectively, to fully provide for the unremitted balances. We may also be subject to future contingent liabilities for the non-STACK assets for which we should have been indemnified, including liabilities associated with litigation relating to the non-STACK assets. As of March 31, 2019 and December 31, 2018, we have established no liabilities for contingent obligations associated with non-STACK assets owned by High Mesa. In addition, we sold a produced water disposal system to KFM during the fourth quarter of 2018. As of March 31, 2019 and December 31, 2018, related party receivables included $9.1 million attributable to the final purchase price adjustment due from KFM. This amount was collected during June 2019.

As of March 31, 2019 and December 31, 2018, the Company had $3.8 million and $3.3 million in related party receivables due from AMR for expenses we paid on their behalf.

Promissory notes receivable

In September, 2017, we entered into a $1.5 million promissory note receivable with our affiliate, Northwest Gas Processing, LLC, whose obligation was subsequently transferred to High Mesa Services, LLC (“HMS”), a subsidiary of HMI.  The promissory note bore interest, which could be paid-in-kind and added to the principal amount at a rate of 8% per annum, and matured in February 2019.  HMS defaulted under the terms of that promissory note when it was not paid when due on February 28, 2019, and HMS has failed to cure such default. We subsequently declared all amounts owed under the note immediately due and payable and we have fully reserved the promissory note balance, including interest paid-in-kind, due of $1.7 million as of March 31, 2019 and December 31, 2018.

In addition, we have an $8.5 million note receivable from HMS which matures on December 31, 2019, and bears interest at 8% per annum, which may be paid-in-kind and added to the principal amount.  HMI disputes its obligations under the $8.5 million note. As of March 31, 2019, and December 31, 2018, the note receivable balance, including interest paid-in-kind, amounted to $11.7 million, for each respective period. This balance was fully reserved at the end of both periods.

We oppose HMI’s claims and believe HMI’s obligations under the notes to be valid assets and that the full amount is payable to us. We intend to pursue all available remedies under both promissory notes and under applicable law in connection with repayment of the promissory notes. As a result of the potential conflict of interest from certain of AMR’s directors who are also controlling holders of HMI, AMR’s disinterested directors will address any potential conflicts of interest with respect to this matter.

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NOTE 7 — PROPERTY AND EQUIPMENT

(in thousands)	March 31, 2019			December 31, 2018
Oil and gas properties
Unproved properties	$	811,804		$	816,282
Accumulated impairment of unproved properties	(742,065		)	(742,065		)
Unproved properties, net	69,739			74,217
Proved oil and gas properties	2,163,279			2,110,346
Accumulated depletion and impairment	(1,455,268		)	(1,421,226		)
Proved oil and gas properties, net	708,011			689,120
Total oil and gas properties, net	777,750			763,337
Other property and equipment
Land	5,059			5,059
Fresh water wells	27,742			27,366
Produced water disposal system	3,590			3,608
Office furniture, equipment and vehicles	2,842			2,840
Accumulated depreciation	(1,134		)	(726		)
Other property and equipment, net	38,099			38,147
Total property and equipment, net	$	815,849		$	801,484

Depletion and Depreciation Expense

	Successor				Predecessor
(in thousands)	Three Months Ended March 31, 2019		February 9, 2018 Through March 31, 2018		January 1, 2018 Through February 8, 2018
Oil and gas properties depletion	$	34,042	$	10,773	$	11,021
Other property and equipment depreciation	408		163		609
Total depletion and depreciation	$	34,450	$	10,936	$	11,630

Impairment

During the three months ended March 31, 2019, we evaluated the qualitative market conditions and other factors impacting our business and concluded that there were no indicators of impairment. Therefore, we did not conduct further analysis on the recognition of additional impairment.

NOTE 8 — DISCONTINUED OPERATIONS (Predecessor)

Alta Mesa distributed the non-STACK oil and gas assets and related liabilities to High Mesa immediately prior to the Business Combination. This distribution, including the results of operations of these assets and liabilities, is presented as discontinued operations during the Predecessor Period.

Prior to the Business Combination, we had notes payable to our founder (“Founder Notes”) that bore simple interest at 10%.  The Founder Notes were converted into an equity interest in High Mesa immediately prior to the Business Combination as they were considered part of the non-STACK distribution.  The balance of the Founder Notes at the time of conversion was approximately $28.3 million, including accrued interest.  Predecessor Period interest on the Founder Notes was $0.1 million.

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	Predecessor
(in thousands)	January 1, 2018 Through February 8, 2018
Revenue
Oil	$	1,617
Natural gas	1,023
Natural gas liquids	236
Other	16
Operating revenue	2,892
Loss on sale of assets	(1,923		)
Total revenue	969
Operating expenses
Lease operating	1,770
Transportation and marketing	83
Production taxes	167
Workovers	127
Depreciation, depletion and amortization	884
Impairment of assets	5,560
General and administrative	21
Total operating expenses	8,612
Other expense
Interest expense	(103		)
Total other expense	(103		)
Loss from discontinued operations, net of tax	$	(7,746	)

	Predecessor
(in thousands)	January 1, 2018 Through February 8, 2018
Total operating cash flows of discontinued operations	$	2,974
Total investing cash flows of discontinued operations	(601		)

NOTE 9 — DERIVATIVES

We have entered into derivatives to reduce our exposure to price risk associated with our production. From time to time, we may enter into interest rate swap agreements to mitigate the risk of changes in interest rates, but as of March 31, 2019, we have none. We do not designate any of our derivatives as hedges under GAAP.

The following summarizes the fair value and classification of our derivatives:

	March 31, 2019
Balance sheet location	Gross fair value of assets		Gross liabilities offset against assets in the Balance Sheet			Net fair value of assets presented in the Balance Sheet
	(in thousands)
Derivatives, current assets	$	6,525	$	(6,525	)	$	—
Derivatives, long-term assets	8,182		(7,721		)	461
Total	$	14,707	$	(14,246	)	$	461

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Balance sheet location	Gross fair value of liabilities		Gross assets offset against liabilities in the Balance Sheet			Net fair value of liabilities presented in the Balance Sheet
	(in thousands)
Derivatives, current liabilities	$	11,582	$	(6,525	)	$	5,057
Derivatives, long-term liabilities	9,786		(7,721		)	2,065
Total	$	21,368	$	(14,246	)	$	7,122

	December 31, 2018
Balance sheet location	Gross fair value of assets		Gross liabilities offset against assets in the Balance Sheet			Net fair value of assets presented in the Balance Sheet
	(in thousands)
Derivatives, current assets	$	22,512	$	(6,089	)	$	16,423
Derivatives, long-term assets	7,910		(4,963		)	2,947
Total	$	30,422	$	(11,052	)	$	19,370

Balance sheet location	Gross fair value of liabilities		Gross assets offset against liabilities in the Balance Sheet			Net fair value of liabilities presented in the Balance Sheet
	(in thousands)
Derivatives, current liabilities	$	7,799	$	(6,089	)	$	1,710
Derivatives, long-term liabilities	5,143		(4,963		)	180
Total	$	12,942	$	(11,052	)	$	1,890

The following table summarizes the effect of our derivatives in the consolidated statements of operations (in thousands):

	Successor						Predecessor
Derivatives not designated as hedges	Three Months Ended March 31, 2019			February 9, 2018 Through March 31, 2018			January 1, 2018 Through February 8, 2018
Gain (loss) on derivatives -
Oil	$	(21,669	)	$	(21,944	)	$	4,796
Natural gas	(2,108		)	(67		)	1,867
Total gain (loss) on derivatives	$	(23,777	)	$	(22,011	)	$	6,663

Other receivables at March 31, 2019 and December 31, 2018 include $0.4 million and $1.3 million, respectively, of derivative positions scheduled to be settled in the next month.

We periodically monitor the creditworthiness of our counterparties. Although our counterparties provide no collateral, the agreements with each counterparty allow us to set-off unpaid amounts against the outstanding balance under the Alta Mesa RBL.

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We had the following call and put derivatives at March 31, 2019:

OIL

	Volume	Weighted		Range
Settlement Period and Type of Contract	in bbls	Average		High		Low
2019
Price Swap Contracts	137,500	$	63.03	$	63.03	$	63.03
Collar Contracts
Short Call Options	2,035,000	66.31		75.20		56.50
Long Put Options	2,172,500	53.80		62.00		50.00
Short Put Options	2,172,500	42.72		52.00		37.50
2020
Collar Contracts
Short Call Options	1,017,600	63.95		73.80		59.55
Long Put Options	1,566,600	56.81		62.50		50.00
Short Put Options	1,566,600	42.81		50.00		37.50
2021
Collar Contracts
Short Call Options	279,750	63.51		63.75		63.35
Long Put Options	279,750	55.00		55.00		55.00
Short Put Options	279,750	43.00		43.00		43.00

GAS

	Volume in	Weighted			Range
Settlement Period and Type of Contract	MMBtu	Average			High			Low
2019
Price Swap Contracts	11,030,000	$	2.67		$	2.72		$	2.64
Basis Swap Contracts	16,050,000	(0.73		)	(0.49		)	(0.93		)
Collar Contracts
Short Call Options	1,525,000	3.19			3.20			3.17
Long Put Options	1,525,000	2.70			2.70			2.70
Short Put Options	1,525,000	2.20			2.20			2.20
2020
Price Swap Contracts	1,284,000	2.54			2.54			2.54
Basis Swap Contracts	910,000	(0.49		)	(0.49		)	(0.50		)
Collar Contracts
Short Call Options	3,874,500	3.19			3.69			2.77
Long Put Options	10,749,500	2.59			3.00			2.50
Short Put Options	9,696,000	2.10			2.50			2.00
2021
Collar Contracts
Short Call Options	540,000	3.25			3.25			3.25
Long Put Options	2,790,000	2.62			2.65			2.50
Short Put Options	2,250,000	2.15			2.15			2.15

In those instances where contracts are identical as to time period, counterparty, volume and strike price, but opposite as to direction (long and short), the volumes and average prices have been netted in the two tables above.  Prices stated in the table above for oil may settle against either the NYMEX index or may reflect a mix of positions settling on various combinations of these benchmarks.

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We had the following basis swaps at March 31, 2019:

Total Gas Volumes in MMBtu(1) over Remaining Term	Reference Price 1 (1)	Reference Price 2 (1)	Period			Weighted Average Spread ($ per MMBtu)
460,000	OneOK	NYMEX Henry Hub	Jul '19	—	Dec '19	$	(0.93	)
13,450,000	Tex/OKL Panhandle Eastern Pipeline	NYMEX Henry Hub	Jan '19	—	Dec '19	(0.70		)
910,000	Tex/OKL Panhandle Eastern Pipeline	NYMEX Henry Hub	Jan '20	—	Mar '20	(0.49		)
2,140,000	San Juan	NYMEX Henry Hub	Jan '19	—	Oct '19	(0.81		)

________________

(1) Represents short swaps that fix the basis differentials between OneOK, Tex/OKL Panhandle Eastern Pipeline (“PEPL”), San Juan and NYMEX Henry Hub.

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NOTE 10 — ACCOUNTS PAYABLE AND ACCRUED LIABILITIES 

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(in thousands)	March 31, 2019		December 31, 2018
Accounts payable	$	8,502	$	20,200
Accruals for capital expenditures	25,964		101,214
Revenue and royalties payable	40,365		46,870
Accruals for operating expenses	8,910		16,355
Accrued interest	13,754		1,784
Derivative settlements	49		109
Other	11,122		10,532
Total accrued liabilities	100,164		176,864
Accounts payable and accrued liabilities	$	108,666	$	197,064

NOTE 11 — ASSET RETIREMENT OBLIGATIONS 

	Successor						Predecessor
(in thousands)	Three Months Ended March 31, 2019			February 9, 2018 Through March 31, 2018			January 1, 2018 Through February 8, 2018
Balance, beginning of period	$	11,409		$	—		$	10,469
Liabilities assumed in Business Combination	—			5,998			—
Liabilities incurred	315			421			—
Liabilities settled	(147		)	(166		)	(63		)
Revisions to estimates	(4)			300			63
Accretion expense	225			102			39
Balance, end of period	11,798			6,655			10,508
Less: Current portion	48			622			33
Long-term portion	$	11,750		$	6,033		$	10,475

NOTE 12 — LONG TERM DEBT, NET

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(in thousands)	March 31, 2019		December 31, 2018
Alta Mesa RBL	$	278,000	$	161,000
2024 Notes	500,000		500,000
Unamortized premium on 2024 notes	27,892		29,123
Total long-term debt, net	$	805,892	$	690,123

Alta Mesa RBL

The Alta Mesa RBL has two covenants that are tested quarterly:

• a ratio of our current assets to current liabilities, inclusive of specified adjustments, of not less than 1.0 to 1.0; and

• a ratio of our consolidated debt to our consolidated Adjusted EBITDAX (the “leverage ratio”) of not greater than 4.0 to 1.0. For the first 3 measurement periods following the Business Combination we were able to annualize cumulative Successor Period results in measuring Adjusted EBITDAX. 

During 2019, and possibly as soon as June 30, 2019, we may be unable to satisfy the leverage ratio. Also, we recognize the need to obtain covenant relief or to replace the Alta Mesa RBL with debt that would allow us to meet any attendant covenant requirements.

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2024 Notes

In connection with the Business Combination, we recorded the fair value of our $500.0 million unsecured senior notes at $533.6 million as of the acquisition date. We have estimated the fair value of our senior notes to be $194.9 million at March 31, 2019.  This estimation was based on the most recent trading values of the senior notes at or near the reporting date, which is a Level 1 determination.

Maturities of Long-Term Debt

Fiscal year	(in thousands)
2019	$	—
2020	—
2021	—
2022	—
2023	278,000
Thereafter	500,000
	$	778,000

NOTE 13 — COMMITMENTS AND CONTINGENCIES 

There have been no material developments during the first quarter of 2019 in relation to our commitments and contingencies as compared to our discussion of those matters in our Annual Report on Form 10-K for the year ended December 31, 2018.

NOTE 14 — SIGNIFICANT CONCENTRATIONS 

During the first quarter of 2019 and throughout 2018, ARM Energy Management, LLC (“ARM”) marketed our oil, gas and NGLs. The sales are generally made under short-term contracts with month-to-month pricing based on published regional indices, adjusted for transportation, location and quality. During January and February 2019 and for all of 2018, ARM collected payments from purchasers, deducted their marketing fee and remitted the balance to us. In March 2019, in preparation for the return of oil and NGL marketing responsibilities to us, we began receiving payments for the sale of oil and NGLs directly from purchasers and separately paying the marketing fee owed to ARM.

Effective as of June 1, 2019, we have terminated our oil and NGL marketing agreement with ARM and will market such products internally. We have extended the term of our gas marketing agreement with ARM through November 30, 2019. With respect to gas sales, ARM continues to collect payments from purchasers, deducts their marketing fee and remits the balance to us.

Our affiliate, Kingfisher Midstream, LLC (“KFM”) is responsible for marketing our firm transportation on the ONEOK Gas Transmission, L.L.C. system, which is indirectly marketed by ARM through an asset management agreement with KFM for a management fee.

ARM also provides us with strategic advice, execution and reporting services with respect to our derivatives activities.

	Successor				Predecessor
(in thousands)	Three Months Ended March 31, 2019		February 9, 2018 Through March 31, 2018		January 1, 2018 Through February 8, 2018
Revenue marketed by ARM on our behalf	$	83,831	$	37,343	$	28,757
Marketing and management fees paid to ARM	$	661	$	—	$	—
Fees paid to ARM for services relating to our derivatives	193		74		66
Total fees paid to ARM	$	854	$	74	$	66

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Receivables from ARM for sales on our behalf were $3.8 million and $38.4 million as of March 31, 2019 and December 31, 2018, respectively, which are reflected in accounts receivable on our balance sheets.

We believe that the loss of any of our customers, or of our marketing agent ARM, would not have a material adverse effect on us because alternative purchasers are readily available. 

NOTE 15 — EQUITY-BASED COMPENSATION (Successor)

Stock compensation expense recognized was as follows:

	Successor				Predecessor
(in thousands)	Three Months Ended March 31, 2019		February 9, 2018 Through March 31, 2018		January 1, 2018 Through February 8, 2018
Stock options	$	791	$	1,048	$	—
Restricted stock awards	862		564		—
Performance-based restricted stock units	8		1,156		—
Total compensation expense	$	1,661	$	2,768	$	—

Performance-based restricted stock units (“PSUs”) issued in 2018 generally vest over three years at 20% during the first year (“2018 tranche”), 30% during the second year (“2019 tranche”), and 50% during the third year (“2020 tranche”). The number of PSUs vesting each year are based on achievement of annual company-specific performance goals and obligations applicable to each year of vesting. Based on achievement of those goals and objectives, the number of PSUs that can vest range from 0% to 200% of the target growth applicable to each vesting period. The performance goals set for the 2018 tranche were not attained and, therefore, the 2018 tranche was forfeited as of December 31, 2018, except with respect to separations involving employment agreements whereby the separated employee was eligible to receive the award granted.

The performance targets for the 2019 tranche were established in March 2019 and 595,417 PSUs were deemed granted at that time. The fair value of the 2019 tranche granted was $0.27 per unit, which will be recognized as expense over the remainder of 2019, subject to continued employment.

No performance targets have yet been established for the 2020 tranche and therefore, no expense will be recognized for those awards until the specific targets have been established and probability of attainment can be measured.

NOTE 16 — RELATED PARTY TRANSACTIONS 

As of December 31, 2018, we had a payable of $2.9 million to KFM for produced water disposal services provided following the sale of the produced water system to them during the fourth quarter of 2018. Beginning in 2019, these costs are utilized to reduce the amount that KFM owes us for marketing our production, which are reported in related party receivables.

As of March 31, 2019 and December 31, 2018, we had a payable to AMR of $0.5 million.

David Murrell, our Vice President of Land and Business Development, is the principal of David Murrell & Associates, which provided land consulting services to us until termination of our contract in December 2018. The primary employee of David Murrell & Associates is his spouse, Brigid Murrell. Services were provided at a pre-negotiated hourly rate based on actual time utilized by us. Total expenditures under this arrangement were approximately $36,000 and $28,000 for the period February 9, 2018 through March 31, 2018 and the Predecessor Period, respectively. These amounts are recorded in general and administrative expenses.

David McClure, AMR’s former Vice President of Facilities and Infrastructure, and the son-in-law of our former President and Chief Executive Officer, Harlan H. Chappelle, received total compensation of $768,860, $970,197 and $28,874 during the 2019 Quarter, the period February 9, 2018 through March 31, 2018 and the Predecessor Period, respectively. These amounts are included in general and administrative expense. Mr. McClure separated from the Company in February 2019.

David Pepper, Surface Land Manager for KFM, and the cousin of our Vice President of Land and Business Development, David Murrell, received total compensation of $70,180, $112,761 and $67,322 during the 2019 Quarter, the period February 9, 2018 through March 31, 2018 and the Predecessor Period, respectively. These amounts are included in general and administrative expense.

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Bayou City Agreement

In January 2016, our wholly owned subsidiary Oklahoma Energy entered into a Joint Development Agreement, as amended on June 10, 2016 and December 31, 2016, (the “JDA”), with BCE, a fund advised by Bayou City, to fund a portion of our drilling operations and to allow us to accelerate development of our STACK acreage. The JDA established a development plan of 60 wells in three tranches, and provides opportunities for the parties to potentially agree to an additional 20 wells. Pursuant to the terms and provisions of the JDA, BCE committed to fund 100% of our working interest share up to a maximum average well cost of $3.2 million in drilling and completion costs per well for any tranche. We are responsible for any drilling and completion costs exceeding approved amounts. BCE may request refunds of certain advances from time to time if funded wells previously on the drilling schedule were subsequently removed. In exchange for carrying the drilling and completion costs, BCE receives 80% of our working interest in each wellbore, which BCE interest will be reduced to 20% of our initial working interest upon BCE achieving a 15% internal rate of return on the wells within a tranche and automatically further reduced to 12.5% of our initial interest upon BCE achieving a 25% internal rate of return on each individual tranche. Following the completion of each joint well, we and BCE will each bear our respective proportionate working interest share of all subsequent costs and expenses related to such joint well.  Mr. William McMullen, one of our directors, is founder and managing partner of BCE. The approximate dollar value of the amount involved in this transaction, or Mr. McMullen’s interests in the transaction, depends on a number of factors outside his control and is not known at this time.  During the period February 9, 2018 through March 31, 2018, BCE advanced us approximately $39.5 million to drill wells under the JDA. As of March 31, 2019, 61 joint wells have been drilled or spudded. At March 31, 2019 and December 31, 2018, $4.5 million and $9.8 million, respectively of revenue and net advances remaining from BCE for their working interest share of the drilling and development costs arising under the JDA were included as “Advances from related party” in our condensed consolidated balance sheets. At March 31, 2019, there were no funded horizontal wells in progress, and we do not expect any wells to be developed in 2019 pursuant to the JDA.

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

The following discussion and analysis should be read in conjunction with the condensed consolidated financial statements and related notes included elsewhere in this report. The following discussion and analysis contains forward-looking statements that reflect our future plans, estimates, beliefs and expected performance. The forward-looking statements are dependent upon events, risks and uncertainties that may be outside our control. Our actual results could differ materially from those discussed in these forward-looking statements. Factors that could cause or contribute to such differences include, but are not limited to, the volatility of oil and gas prices, production timing and volumes, estimates of proved reserves, operating costs and capital expenditures, economic and competitive conditions, regulatory changes and other uncertainties, as well as those factors discussed in “Cautionary Statement Regarding Forward-Looking Statements” at the beginning of this Quarterly Report and in the sections titled “Risk Factors” in this Quarterly Report and in our 2018 Annual Report on Form 10-K, all of which are difficult to predict. As a result of these risks, uncertainties and assumptions, the forward-looking events discussed may not occur.

Overview

We are an independent exploration and production company focused on the acquisition, development, exploration and exploitation of unconventional onshore oil and natural gas reserves in the eastern portion of the Anadarko Basin in Oklahoma. Our activities are primarily directed at the horizontal development of an oil and liquids-rich resource play in an area of the basin commonly referred to as the Sooner Trend Anadarko Basin Canadian and Kingfisher County (“STACK”). We generate revenue principally by the production and sale of oil, natural gas and NGLs. We maintain operational control of the majority of our properties, either through directly operating them or through operating arrangements with other interest owners.

As of March 31, 2019, we have assembled a highly contiguous position of approximately 137,000 net acres in the up-dip, naturally-fractured oil portion of the STACK primarily in eastern Kingfisher and south-eastern Major counties in Oklahoma. Our drilling locations primarily target the Osage, Meramec and Oswego formations. When we consider acquiring acreage within or adjacent to our acreage footprint, we prioritize opportunities where we can be the operator. During January 2019, we suspended our development program to evaluate well costs and performance. We restarted our development program in March 2019 and expect to use 2-3 rigs for the remainder of 2019 as we focus on the optimal completion design, well pattern and sustaining lower well costs.

As a result of the Business Combination, our identifiable assets acquired and liabilities assumed were recorded at their estimated fair values at February 9, 2018 and were pushed down to us.  As a result, our financial statements and certain footnote

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presentations separate our presentations into two distinct periods, the period before the consummation of the acquisition (“Predecessor”) and the period after that date (“Successor”), to indicate the application of the different basis of accounting between the periods presented. Accordingly, the period January 1, 2018 to February 8, 2018 is referred to as the Predecessor Period.

We distributed our non-STACK oil and gas assets and liabilities to High Mesa in connection with the closing of the Business Combination. We report the non-STACK oil and gas assets and liabilities as discontinued operations during the Predecessor Period.

Outlook, Market Conditions and Commodity Prices

Our revenue, profitability and future growth rate depend on many factors, particularly the prices of oil, gas and NGLs, which are beyond our control.  The success of our business is significantly affected by the price of oil due to its weighting in our production profile. 

Factors affecting oil prices include worldwide economic conditions; geopolitical activities in various regions of the world; worldwide supply and demand conditions; weather conditions; actions taken by the Organization of Petroleum Exporting Countries; and the value of the U.S. dollar in international currency markets. Commodity prices remain unpredictable and it is uncertain whether the increase in market prices experienced since the end of 2018 will be sustained.  As a result, we cannot accurately predict future commodity prices and, therefore, cannot determine with any degree of certainty what effect increases or decreases in these prices will have on our capital expenditures, production volumes or revenues.  In the event that oil, gas and NGLs prices significantly decrease, such decreases could have a material adverse effect on our financial condition, the carrying value of our oil and natural gas properties, our proved reserves and our ability to finance operations, including the amount of the borrowing capacity under the Alta Mesa RBL.

Key performance indicators

During 2019, our board of directors has established the following operating measures as key performance indicators for executive management compensation and the Company as a whole:

• Production

• General and administrative costs (excluding strategic costs)

• Lease operating expense

• Well costs

• Adjusted EBITDAX

We will focus on measuring our performance against baseline and prior year comparable periods during this and future filings.

Going concern

Our present level of indebtedness and the impact of commodity prices at the end of 2018 on our current drilling and production plans present challenges to our ability to comply with the covenants under our debt agreements. Absent one or more deleveraging transactions, we may be at risk of non-compliance with the Consolidated Total Leverage Ratio Covenant in the Alta Mesa RBL as early as the June 30, 2019 measurement date. In addition, the lenders under the Alta Mesa RBL have an ability to make an optional redetermination ahead of the regular redetermination in October 2019. If the outstanding borrowings under the Alta Mesa RBL were to exceed the borrowing base due to any such redetermination, we would be required to repay the excess ratably over five months, which could have an adverse impact on our liquidity. Our general partner’s board and our parent’s board of directors and its financial advisors are evaluating the available financial alternatives, including, without limitation, seeking amendments or waivers to the covenants or other provisions of our indebtedness, raising new capital from the private or public markets or taking other actions to address our capital structure. If we are unable to reach an agreement with our lenders or find acceptable alternative financing, it may lead to an event of default under the Alta Mesa RBL. If following an event of default, the Alta Mesa RBL lenders were to accelerate repayment, it may result in an event of default and an acceleration under the 2024 Notes. We have concluded that these circumstances create substantial doubt regarding our ability to continue as a going concern. For a more detailed discussion, please read “Item 1A. Risk Factors” in Part I of our 2018 10-K.

Derivatives

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The objective of our hedging program is to reduce price volatility for our production over time. However, in the short-term, both settlements and fair value changes in our derivatives can significantly impact our results of operations, and we expect these gains and losses to continue to reflect the impact of changes in oil and gas prices. Our derivatives are reported at fair value and are sensitive to changes in the price of oil and gas. Changes in derivatives are reported as gain (loss) on derivatives, which include both the unrealized increase and decrease in their fair value, as well as the effect of realized settlements during the period. For the quarter ended March 31, 2019, we recognized a net loss on our derivatives of $23.8 million, which includes $0.4 million in cash settlements received for derivatives.

Impairments

In late fourth quarter of 2018, the combination of depressed prevailing oil and gas prices, changes to assumed spacing in conjunction with evolving views on the viability of multiple benches and reduced individual well expectations resulted in impairment charges of $2.0 billion to our proved and unproved oil and gas properties during the quarter ended December 31, 2018. Individual well expectations were impacted by reductions in estimated reserve recovery of original oil and gas in place. In the future, we may recognize further impairments of proved and unproved oil and gas properties if commodity prices decline from current levels and further restrict our drilling plans. Prolonged low commodity prices may also result in additional impairments of other assets and could cause us to delay or abandon anticipated development activities.

Factors affecting future performance

The primary factors affecting our production levels (which may be interrelated) are current commodity prices, capital availability, the effectiveness and efficiency of our production operations, the success of our drilling program and our inventory of identified drilling locations. In addition, our wells have significant natural production declines. We attempt to overcome this natural decline primarily through development of our existing undeveloped resources, well recompletions and other enhanced recovery methods. Sustaining our production levels or our future growth will depend on our ability to continue to develop reserves. Our ability to add reserves through drilling and other development techniques is dependent on market conditions and our capital resources and can be limited by many factors, including our ability to timely obtain drilling permits and regulatory approvals. Any delays in drilling, completing or connecting our new wells to gathering lines will negatively affect our production, which will have an adverse effect on our revenue and, as a result, our cash flow from operations.

Results of Operations

For the Three Months Ended March 31, 2019 Compared to the Periods February 9, 2018 Through March 31, 2018 (Successor) and January 1, 2018 Through February 8, 2018 (Predecessor)

The tables included below set forth financial information for the Successor Periods and Predecessor Period, which are distinct reporting periods as a result of the Business Combination.  The Predecessor Period amounts below exclude operating results related to discontinued operations. We refer to the three months ended March 31, 2019 as the “2019 Quarter” and to the combined Predecessor Period and Successor Period for the three months ended March 31, 2018 as the “2018 Quarter.”

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Revenue

Our oil, gas and NGLs revenue varies as a result of changes in commodity prices and production volumes.  The following table summarizes our revenue and production data for the periods presented:

	Successor						Predecessor
(in thousands, except per unit data)	Three Months Ended March 31, 2019			February 9, 2018 Through March 31, 2018			January 1, 2018 Through February 8, 2018
Net production:
Oil (Mbbls)	1,619			651			494
Natural gas (MMcf)	5,831			2,248			1,609
NGLs (Mbbls)	795			223			151
Total (MBoe)	3,386			1,249			914
Average net daily production volumes:
Oil (Mbblsd)	18.0			12.8			12.7
Natural gas (MMcfd)	64.8			44.1			41.2
NGLs (Mbblsd)	8.8			4.4			3.9
Total (MBoed)	37.6			24.5			23.4
Average sales prices:
Oil (per bbl)	$	53.34		$	61.84		$	62.68
Effect of realized derivatives settlements (per bbl)	1.08			(7.93		)	(6.44		)
Oil, after hedging (per bbl)	$	54.42		$	53.91		$	56.24
Percentage of unhedged realized oil price to NYMEX oil price	97		%	99		%	99		%
Natural gas (per Mcf)	$	3.16		$	2.32		$	2.66
Effect of realized derivatives settlements (per Mcf)	(0.24		)	0.25			0.94
Natural gas, after hedging (per Mcf)	$	2.92		$	2.57		$	3.60
NGLs (per bbl)	$	14.11		$	21.18		$	26.41
Effect of realized derivatives settlements (per bbl)	—			—			—
NGLs, after hedging (per bbl)	$	14.11		$	21.18		$	26.41
Revenue
Oil sales	$	86,363		$	40,278		$	30,972
Natural gas sales	18,450			5,210			4,276
NGL sales	11,216			4,714			4,000
Total E&P sales revenue	$	116,029		$	50,202		$	39,248

Oil revenue for the 2019 Quarterincreased compared to the 2018 Quarter due to an increase in production in the 2019 Quarter, partially offset by lower average sales prices. The increase in production in the 2019 Quarter was due to the extensive development program conducted following the Business Combination.

Natural gas revenue for the 2019 Quarterincreased compared to the 2018 Quarter due to an increase in production in the 2019 Quarter as a result of the extensive development program during 2018 and higher prevailing market prices.

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NGL revenue for the 2019 Quarterincreased compared to the 2018 Quarter due to an increase in production in the 2019 Quarter, partially offset by lower average prices. The increase in production volume was primarily due to the impact of our extensive 2018 development activities.  

Gain (loss) on sale of assets and other for the 2019 Quarter included a gain from the sale of seismic data totaling $1.5 million compared to a similar gain of $5.9 million during the 2018 Quarter.

Derivatives

	Successor						Predecessor
(in thousands)	Three Months Ended March 31, 2019			February 9, 2018 Through March 31, 2018			January 1, 2018 Through February 8, 2018
Gain (loss) on derivatives:
Oil	$	1,745		$	(4,530	)	$	(3,819	)
Natural gas	(1,380		)	555			1,523
Total realized gains (losses)	365			(3,975		)	(2,296		)
Unrealized gains (losses)	(24,142		)	(18,036		)	8,959
Total gain (loss) on derivatives	$	(23,777	)	$	(22,011	)	$	6,663

Increases in commodity prices during the 2019 Quarter, which outpaced increases during the 2018 Quarter, largely drove the higher unrealized losses on our outstanding derivatives.

Operating Expenses

	Successor				Predecessor
(in thousands, except per unit data)	Three Months Ended March 31, 2019		February 9, 2018 Through March 31, 2018		January 1, 2018 Through February 8, 2018
Operating expenses:
Lease operating	$	25,108	$	8,317	$	4,408
Transportation and marketing	17,761		5,582		3,725
Production taxes	5,483		1,415		953
Workovers	197		1,245		423
Exploration	2,054		1,585		7,003
Depreciation, depletion and amortization	34,675		11,038		11,670
General and administrative	20,947		34,654		21,234
Total operating expense	$	106,225	$	63,836	$	49,416
Operating expenses per BOE:
Lease operating	$	7.42	$	6.66	$	4.82
Transportation and marketing	5.25		4.47		4.08
Production taxes	1.62		1.13		1.04
Workovers	0.06		1.00		0.46
Depreciation, depletion and amortization	10.24		8.84		12.77

Lease operating expense for the 2019 Quarterincreasedcompared to the 2018 Quarter primarily due to higher production and the impact of additional costs associated with the sale of our produced water assets to our affiliate KFM in the fourth quarter of 2018.

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Transportation and marketing expense for the 2019 Quarterincreasedcompared to the 2018 Quarter primarily due to higher volumes. The fee we pay per unit reflects the firm processing capacity at the plant, as well as firm transport for our residue gas at the tailgate of the plant. 

Production taxes for the 2019 Quarterincreasedcompared to the 2018 Quarter primarily due to the increase in oil and NGL revenue and an increase in the Oklahoma severance tax rate from 2% to 5%, effective in the third quarter of 2018, for wells in their first 3 years of production. 

Workovers are associated with maintenance and other efforts to increase production. During the 2019 Quarter, these costs decreased due to minimal workover projects being undertaken.

	Successor				Predecessor
(in thousands)	Three Months Ended March 31, 2019		February 9, 2018 Through March 31, 2018		January 1, 2018 Through February 8, 2018
Exploration expense:
Geological and geophysical costs	$	312	$	451	$	2,440
Dry hole expense	—		—		—
Other exploration expense, including expired leases	1,695		833		4,504
ARO settlements in excess of recorded liabilities	47		301		59
Total exploration expense	$	2,054	$	1,585	$	7,003

Exploration expense for the 2019 Quarterdecreasedcompared to the 2018 Quarter primarily due to our cost reduction efforts and a decrease in expenses relating to expired or expiring leaseholds.

	Successor				Predecessor
(in thousands)	Three Months Ended March 31, 2019		February 9, 2018 Through March 31, 2018		January 1, 2018 Through February 8, 2018
General and administrative expense:
Employee-related costs	$	10,376	$	6,788	$	1,032
Strategic costs - Business Combination costs	—		23,717		17,040
Equity-based compensation	1,661		2,768		—
Professional fees	2,871		890		1,019
Severance costs	3,975		—		—
Operating leases	1,024		491		208
Other	1,040		—		1,935
Total general and administrative expense	$	20,947	$	34,654	$	21,234

General and administrative expense for the 2019 Quarterdecreasedcompared to the 2018 Quarter primarily due to nonrecurring strategic costs and professional fees incurred in the 2018 Quarter for advisors helping to value and integrate the acquired business pursuant to the Business Combination. General and administrative expense in the Successor Periods also include equity-based compensation awards with no similar activity in the Predecessor Period. Employee-related costs primarily increased due to higher employee expenses compared to the 2018 Quarter reflecting the increase in production activity during 2018. Following a reassessment of 2019 activity levels, we implemented a reduction in force program during the 2019 Quarter which resulted in an increase in severance costs for the current period.

Below is a reconciliation of our Adjusted EBITDAX to our loss from continuing operations before income taxes:

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	Successor						Predecessor
(in thousands)	Three Months Ended March 31, 2019			February 9, 2018 Through March 31, 2018			January 1, 2018 Through February 8, 2018
Loss from continuing operations before income taxes	$	(24,725	)	$	(34,601	)	$	(7,116	)
Interest expense	12,830			5,196			5,511
Depreciation, depletion and amortization	34,675			11,038			11,670
Exploration	2,054			1,585			7,003
Loss (gain) on unrealized hedges	24,142			18,036			(8,959		)
Loss on sale of property and equipment	—			1,923			—
Equity-based compensation	1,661			2,768			—
Severance costs	3,975			—			—
EBITDAX	54,612			5,945			8,109
Business Combination related expense	—			23,717			17,040
Adjusted EBITDAX	$	54,612		$	29,662		$	25,149

The Company’s management believes Adjusted EBITDAX is useful because it allows users to more effectively evaluate our operating performance, compare the results of our operations from period to period and against our peers without regard to our financing methods or capital structure and because it highlights trends in our business that may not otherwise be apparent when relying solely on GAAP measures. Adjusted EBITDAX should not be considered as an alternative to our net income (loss), operating income (loss) or other performance measures derived in accordance with GAAP and may not be comparable to similarly titled measures in other companies’ reports.

Other (Income) Expense

	Successor						Predecessor
(in thousands)	Three Months Ended March 31, 2019			February 9, 2018 Through March 31, 2018			January 1, 2018 Through February 8, 2018
Alta Mesa RBL	$	3,579		$	278		$	815
2024 Notes	9,844			6,561			3,281
Bond premium amortization	(1,231		)	(820		)	—
Deferred financing cost amortization	45			—			171
Other	593			(823		)	1,244
Total interest expense	12,830			5,196			5,511
Interest income and other	(27		)	(546		)	(172		)
Total other expense, net	$	12,803		$	4,650		$	5,339

Interest expense for the 2019 Quarterincreased$2.1 million compared to the 2018 Quarter primarily due to increased levels of borrowing under the Alta Mesa RBL. Deferred financing costs related to the Alta Mesa RBL and the premium associated with our 2024 Notes are being amortized over the remaining term of each obligation. Other interest expense includes commitment fees and interest expense related to our joint development agreement with BCE.

Liquidity and Capital Resources

Our principal requirements for capital are to fund our day-to-day operations, development activities and to satisfy our contractual obligations related to servicing our debt and hedges. During the 2019 Quarter, our main sources of liquidity and capital resources came from operating cash flow and borrowings under the Alta Mesa RBL.

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During April 2019, our borrowing base was reduced from $400.0 million to $370.0 million as part of the semi-annual redetermination. We currently have outstanding borrowings of approximately $350.0million and outstanding letters of credit of $20.0 million, leaving us no additional remaining borrowing capacity. We had $93.7 million of cash at May 31, 2019. We have not obtained covenant relief, but that remains an important objective for us. As referenced above, we may be at risk of non-compliance with the Consolidated Total Leverage Ratio Covenant in the Alta Mesa RBL as early as the June 30, 2019 measurement date. In addition, the lenders under the Alta Mesa RBL have an ability to make an optional redetermination ahead of the regular redetermination in October 2019. If the outstanding borrowings under the Alta Mesa RBL were to exceed the borrowing base due to any such redetermination, we would be required to repay the excess ratably over five months, which could have an adverse impact on our liquidity. Our general partner’s board and our parent’s board of directors and its financial advisors are evaluating the available financial alternatives, including, without limitation, seeking amendments or waivers to the covenants or other provisions of our indebtedness, raising new capital from the private or public markets or taking other actions to address our capital structure. If we are unable to reach an agreement with our lenders or find acceptable alternative financing, it may lead to an event of default under the Alta Mesa RBL. If following an event of default, the Alta Mesa RBL lenders were to accelerate repayment, it may result in an event of default and an acceleration under the 2024 Notes. We have concluded that these circumstances create substantial doubt regarding our ability to continue as a going concern. Assuming covenant relief can be obtained, we believe that our combined future operating cash flow and cash currently on our balance sheet will be sufficient to allow us to carry out our desired 2019 development program, despite the associated negative free cash flow. Our ability to reduce well costs and to more precisely assess the productivity of wells under our new spacing design tests are important to our success in 2019 as we evaluate our future prospects and opportunities.

Our future drilling plans and capital budgets are subject to change based upon various factors, some of which are beyond our control, including drilling results, oil and gas prices, the availability and cost of capital, drilling and production costs, availability of drilling services and equipment, midstream availability, other working interest owner participation and regulatory matters. Any deferral of planned capital expenditures, particularly with respect to bringing new wells onto production, could reduce our anticipated production, revenue and cash flow, and may result in the expiry of certain leases. However, because a large percentage of our acreage is held by production, we can alter our drilling program to minimize the risk of losing significant acreage. 

We strive to maintain financial flexibility and, if they are available to us on terms we find acceptable, may access the capital markets to facilitate our development program, to selectively expand our acreage position or to redesign our capital structure. If our operating cash flow is materially less than anticipated and other sources of capital are not available on acceptable terms, we may decide to curtail our capital spending. 

We expect to operate 2-3 rigs during 2019 to develop our assets, particularly to focus on testing the spacing patterns we believe to be optimal, and to implement cost reduction strategies begun earlier in 2019. If we have adequate liquidity to fund such operations, we expect to drill and bring online approximately 60 wells during 2019 while incurring approximately $140.0 million to $155.0 million of capital expenditures related to this development program. We also expect that an additional $18.0 million to $23.0 million could be incurred for non-operated projects, leasehold costs and capitalized workover activity. We do not expect our 2019 operating cash flow alone to provide sufficient proceeds to meet this level of expenditure, which will require us to most likely utilize existing cash on hand.

As we execute our business strategy, we will continually monitor the capital resources available to meet future financial obligations and planned capital expenditures.  We believe our cash flows provided by operating activities and available cash on hand will allow us to pursue our currently planned development activities.   We cannot provide assurance that operations and other needed capital will be available on acceptable terms, or at all.

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Cash flow Analysis

	Successor						Predecessor
(in thousands)	Three Months Ended March 31, 2019			February 9, 2018 Through March 31, 2018			January 1, 2018 Through February 8, 2018
Cash from operating activities	$	29,935		$	(49,311	)	$	26,336
Cash from investing activities	(133,077		)	(129,310		)	(37,913		)
Cash from financing activities	117,000			425,272			16,932
Net increase in cash, cash equivalents and restricted cash	$	13,858		$	246,651		$	5,355

Cash flow from operating activities

	Successor						Predecessor
(in thousands)	Three Months Ended March 31, 2019			February 9, 2018 Through March 31, 2018			January 1, 2018 Through February 8, 2018
Cash-based items of net income (loss)	$	35,681		$	448		$	980
Changes in working capital and other assets and liabilities	(5,746		)	(49,759		)	25,356
Cash from operating activities	$	29,935		$	(49,311	)	$	26,336

During the 2019 Quarter, cash-based items of net income (loss), including revenue (exclusive of unrealized commodity gains or losses), operating expenses and taxes, general and administrative expenses, and the cash portion of our interest expense were $35.7 million as compared to $1.4 million during the 2018 Quarter. Changes in working capital and other assets and liabilities resulted in a decrease in cash of approximately $5.7 million as compared to a decrease of $24.4 million during the 2018 Quarter. The increase in cash from operating activities of $52.9 million is primarily related to Business Combination Costs of $40.7 million incurred in the 2018 Quarter. In addition, the 2018 Quarter included net loss from Discontinued Operations of $7.7 million.

Cash flow from investing activities

	Successor						Predecessor
(in thousands)	Three Months Ended March 31, 2019			February 9, 2018 Through March 31, 2018			January 1, 2018 Through February 8, 2018
Cash provided by (used for)
Capital expenditures	$	(133,077	)	$	(129,310	)	$	(36,695	)
Acquisition of acreage	—			—			(1,218		)
Cash from investing activities	$	(133,077	)	$	(129,310	)	$	(37,913	)

During the 2019 Quarter, cash spent for capital expenditures included $84.2 for additions to property and equipment that occurred prior to December 31, 2018.

Cash flow from financing activities

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	Successor					Predecessor
(in thousands)	Three Months Ended March 31, 2019		February 9, 2018 Through March 31, 2018			January 1, 2018 Through February 8, 2018
Cash provided by (used for)
Proceeds from long-term debt borrowings	$	117,000	$	—		$	60,000
Repayments of long-term debt	—		(134,065		)	(43,000		)
Capital contributions (distributions), net	—		560,344			(68		)
Other	—		(1,007		)	—
Cash from financing activities	$	117,000	$	425,272		$	16,932

During the 2019 Quarter, our outstanding balance owed under the Alta Mesa RBL increased by $117.0 million from December 31, 2018 largely related to borrowings to fund of our capital expenditures.

Immediately following the Business Combination on February 9, 2018, we received a capital contribution from our immediate parent, SRII Opco, of $560.3 million, a portion of which was used to fund additional capital expenditures and to increase working capital.

Item 3. Quantitative and Qualitative Disclosures about Market Risk

We are exposed to certain market risks that are inherent in our financial statements that arise in the normal course of business. We may enter into derivatives to manage or reduce market risk, but we do not enter into derivatives for speculative purposes. We do not designate derivatives as hedges for accounting purposes.

Commodity Price Risk and Hedges

We forecast our future production based on information in our December 31, 2018 reserve report for all reserve categories using estimates for future pricing, costs and other assumptions that may prove to be inaccurate. Our actual production will vary from the amounts estimated in the report, perhaps materially.

Our major market risk exposure is associated with prices for oil, gas and NGLs, which have historically been volatile. As such, future results are subject to change due to changes in these prices. Realized prices are primarily driven by the prevailing worldwide price for oil and regional prices for gas. We have used, and expect to continue to use, derivatives to reduce our exposure to the risks of price changes. Pursuant to our risk management policy, we engage in these activities as a hedging mechanism against low prices and price volatility associated with developed and undeveloped reserves.

The fair value of our oil and gas derivatives and basis swaps at March 31, 2019 was a net liability of $6.7 million. A 10% increase or decrease in oil and gas prices (with all other factors held constant) would result in an unrealized loss or gain in the fair value of our oil and gas derivatives for the 2019 Quarter of $24,429 and $9,820, respectively.

Counterparty and Customer Credit Risk

Our derivatives expose us to credit risk in the event of nonperformance by counterparties. While we do not require them to post collateral, we do monitor the credit standing of such counterparties, all of which have investment grade ratings.

Our principal ongoing exposures to credit risk are from joint interest receivables and receivables from the sale of our oil and gas production. The inability or failure of our customers to meet their obligations to us or their insolvency or liquidation may adversely affect our financial results. However, we believe the credit quality of our purchasers of production and other working interest owners is high.

During the first quarter of 2019 and 2018, ARM marketed our oil, gas and NGLs. Effective as of June 1, 2019, we have terminated our oil and NGL marketing agreement with ARM and will market such products internally. We have extended the term of our gas marketing agreement with ARM through November 30, 2019. In March 2019, in preparation for the return of

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oil and NGL marketing responsibilities to us, we began receiving payments for the sale of oil and NGLs directly from purchasers and separately paying the marketing fee owed to ARM.  However, with respect to gas sales, ARM continues to collect payments from purchasers, deducts their marketing fee and remits the balance to us.

For the 2019 Quarter, ARM marketed $83.8 million, or 71.9% of our operating revenue for the period.

Joint operations receivables arise from billings to entities that own interests in the wells we operate. These entities participate in our wells primarily based on their ownership in leases on which we intend to drill. We have little ability to control whether these entities will participate in our wells.

Interest Rates

We are subject to interest rate risk under the Alta Mesa RBL. We currently have no open interest rate derivatives. A 100 basis point increase in interest rates would increase annual interest expense on the Alta Mesa RBL by approximately $2.8 million, based on the balance outstanding at March 31, 2019.

Inflation

Inflation in the United States has been relatively low in recent years and did not have a material impact on our results of operations for the 2019 Quarter.  Although the impact of inflation has been insignificant in recent years, it could cause future upward pressure on the cost of oilfield services, equipment and general and administrative expenses. 

Item 4. Controls and Procedures

Evaluation of Disclosure Controls and Procedures

As required by Rules 13a-15 and 15d-15 of the Exchange Act, our management, with the participation of our principal executive officer and principal financial officer, performed an evaluation of our disclosure controls and procedures. Our controls and procedures are designed to ensure that information required to be disclosed by the Company in reports it files or submits under the Exchange Act is recorded, processed, summarized, and reported within the time periods specified in the rules and forms of the SEC, and that the information required to be disclosed by the Company in reports that it files or submits under the Exchange Act is accumulated and communicated to the Company’s management, including the principal executive officer and principal financial officer, as appropriate, to allow timely decisions regarding required disclosure.

As described further in our 2018 Annual Report on Form 10-K, we concluded that our disclosure controls and procedures were not effective as of December 31, 2018, due to existence of material weakness in our internal control over financial reporting (“ICFR”). Apart from the controls and procedures relating to accounting for business combinations, several of the material weaknesses in our ICFR continued to exist during the 2019 Quarter. These material weaknesses include:

• establishment of formal policies and procedures;

• ineffective monitoring activities that span the Company to ensure that internal controls processes are functioning properly;

• ineffective controls over the financial statement close and disclosure process; and

• over-reliance on and ineffective controls over access to and changes involving critical worksheets.

Changes in Internal Control Over Financial Reporting (ICFR)

While we have made progress in multiple areas to improve ICFR, management is continuing to implement the remediation plan described in our 2018 Annual Report on Form 10-K and continues to work to make changes in controls and procedures in a manner consistent with the size, complexity and scale of operations subsequent to the Business Combination.

During the 2019 Quarter, we have made access changes to payroll, production accounting, and reserves systems to address material weaknesses identified during 2018. Testing to be conducted later in 2019 will determine whether these changes to system access will prove effective in remediating the underlying material weakness.

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PART II - OTHER INFORMATION

Item 1. Legal Proceedings

We are subject to legal proceedings, claims and liabilities arising in the ordinary course of business. The outcomes cannot be reasonably estimated. Accruals for losses associated with litigation are made when losses are deemed probable and can be reasonably estimated. Because legal proceedings are inherently unpredictable and unfavorable resolutions could occur, assessing contingencies is highly subjective and requires judgments about uncertain future events. When evaluating contingencies, we may be unable to provide a meaningful estimate due to a number of factors, including the procedural status of the matter in question, the presence of complex or novel legal theories, and/or the ongoing discovery and development of information important to the matters. There have been no significant changes during the 2019 Quarter to the matters described in Item 3. Legal Proceedings in our 2018 Annual Report on Form 10-K.

Item 1A. Risk Factors

We are subject to various risks and uncertainties in the course of our business. There have been no material changes during the 2019 Quarter to the risk factors described under Item 1A. Risk Factors in our 2018 Annual Report on Form 10-K.

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

None.

Item 3. Defaults Upon Senior Securities

None.

Item 4. Mine Safety Disclosures

Not applicable.

Item 5. Other Information

On June 10, 2019, Mr. Hackett resigned from the Board of Managers of our general partner. He will continue to serve as Executive Chairman of the Board and Interim Chief Executive Officer of our parent, AMR. Mr. Hackett’s decision to resign from the Board of Managers of our general partner was not due to any disagreement with the Company relating to the operations, practices or policies of the Company.

In addition, on June 10, 2019, Donald R. Dimitrievich, Sylvia J. Kerrigan, Pierre F. Lapeyre Jr., David M. Leuschen, William W. McMullen, Donald R. Sinclair, Jeffrey H. Tepper and Diana J. Walters were appointed as members of the Board of Managers of our general partner. On June 11, 2019, Patrick J. Bartels Jr. was appointed to the Board of Managers of our general partner. Pursuant to the terms of an independent manager agreement between Mr. Bartels and the Company, Mr. Bartels will serve as a Manager for an initial term of nine months and receive $25,000 per month for compensation for his services. The other Managers will not receive any compensation with respect to their service. The independent manager agreement also provides, among other things, that the Company will indemnify Mr. Bartels, subject to certain exceptions, to the fullest extent permitted by law. The foregoing description of the independent manager agreement is a summary only and is qualified in its entirety by reference to the independent manager agreement, which is filed as an Exhibit to this quarterly report and is incorporated by reference herein.

There are no arrangements or understandings between any of the new Managers and any other person pursuant to which they were elected as a Manager. There are no related party transactions involving the new Managers that are reportable under Item 404(a) of Regulation S-K. The Board of Managers does not currently have Committees; therefore, no Manager will be appointed to any Committees.

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Item 6. Exhibits

Exhibit Number	Description of Exhibit
2.1	Contribution Agreement, dated as of August 16, 2017, by and among High Mesa Holdings, LP, High Mesa Holdings GP, LLC, Alta Mesa Holdings, LP, Alta Mesa Holdings GP, LLC, Silver Run Acquisition Corporation II, and, solely for certain provisions therein, the Contributor Owners party thereto (incorporated by reference to Exhibit 2.1 to Alta Mesa Holdings, LP’s Form 8-K filed with the SEC on August 17, 2017 (File No. 333-173751))
3.1	Articles of Organization of Alta Mesa Holdings GP, LLC, dated September 26, 2005 (incorporated by reference from Exhibit 3.1 to Alta Mesa Holdings, LP’s registration statement on Form S-4 filed with the SEC on April 27, 2011 (File No. 333-173751)).
3.2	Sixth Amended and Restated Limited Liability Company Agreement of Alta Mesa Holdings GP, LLC, dated February 9, 2018 (incorporated by reference from Exhibit 3.2 to Alta Mesa Holdings, LP’s current report on Form 8-K filed with the SEC on February 14, 2018 (File No. 333-173751)).
3.3	Certificate of Limited Partnership of Alta Mesa Holdings, LP, dated September 26, 2005 (incorporated by reference from Exhibit 3.3 to Alta Mesa Holdings, LP’s registration statement on Form S-4 filed with the SEC on April 27, 2011 (File No. 333-173751)).
3.4	Seventh Amended and Restated Agreement of Limited Partnership of Alta Mesa Holdings, LP, dated as of February 9, 2018 (incorporated by reference from Exhibit 3.1 to Alta Mesa Holdings, LP’s current report on Form 8-K filed with the SEC on February 14, 2018 (File No. 333-173751)).
3.5	Certificate of Incorporation of Alta Mesa Finance Services Corp., dated September 27, 2010 (incorporated by reference from Exhibit 3.7 to Alta Mesa Holdings, LP’s registration statement on Form S-4 filed with the SEC on April 27, 2011 (File No. 333-173751)).
3.6	Bylaws of Alta Mesa Finance Services Corp., dated September 27, 2010 (incorporated by reference from Exhibit 3.8 to Alta Mesa Holdings, LP’s registration statement on Form S-4 filed with the SEC on April 27, 2011 (File No. 333-173751)).
4.1	Indenture, dated December 8, 2016, by and among Alta Mesa Holdings, LP, Alta Mesa Finance Services Corp., the Subsidiary Guarantors named therein and U.S. Bank National Association, as Trustee (incorporated by reference from Exhibit 4.1 to Alta Mesa Holdings, LP’s current report on Form 8-K filed with the SEC on December 8, 2016 (File No. 333-173751)).
4.2	Registration Rights Agreement, dated December 8, 2016, by and among Alta Mesa Holdings, LP, Alta Mesa Finance Services Corp., the Guarantors named therein and Wells Fargo Securities, LLC, as representative of the Initial Purchasers (incorporated by reference from Exhibit 4.2 to Alta Mesa Holdings, LP’s current report on Form 8-K filed with the SEC on December 8, 2016 (File No. 333-173751)).
10.1	Employment Agreement, dated as of January 7, 2019, by and between Alta Mesa Services, LP and John C. Regan (incorporated by reference from Exhibit 10.8 to Alta Mesa Holdings, LP’s annual report on Form 10-K filed with the SEC on May 17, 2019 (file No. 333-173751)).
10.2	Separation Agreement dated as of March 26, 2019 by and between Craig W. Collins and Alta Mesa Services, L.P. (incorporated by reference from Exhibit 10.1 to Alta Mesa Holdings, LP’s current report on Form 8-K filed with the SEC on March 28, 2019 (File No. 333-173751)).
10.3	Form 2019 Incentive Program Letter Agreement (incorporated by reference from Exhibit 10.2 to Alta Mesa Holdings, LP’s current report on Form 8-K filed with the SEC on March 28, 2019 (File No. 333-173751)).
10.4*	Independent Manager Agreement, dated June 12, 2019, between Alta Mesa Holdings GP, LLC and Patrick J. Bartels Jr.
31.1*	Certification of the Company’s Chief Executive Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 (18 U.S.C. Section 7241).
31.2*	Certification of the Company’s Chief Financial Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 (18 U.S.C. Section 7241).
32.1*	Certification of the Company’s Chief Executive Officer Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (18 U.S.C. Section 1350).
32.2*	Certification of the Company’s Chief Financial Officer Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (18 U.S.C. Section 1350).
101*	Interactive data files.

* filed herewith.

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SIGNATURES

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, hereunto duly authorized.

		ALTA MESA HOLDINGS, L.P.
		By: Alta Mesa Holdings GP, LLC
		Its general partner
		(Registrant)
By	/s/ John C. Regan
	John C. Regan
	Chief Financial Officer (Principal Financial Officer)
Dated	June 13, 2019

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EX-10.4

EXHIBIT 10.4

INDEPENDENT MANAGER AGREEMENT

THIS INDEPENDENT MANAGER AGREEMENT (the “Agreement”) is made as of June 12, 2019, by and between Alta Mesa Holdings GP, LLC, a Texas limited liability company(the “Company”), and Patrick J. Bartels Jr. (“Manager”).

BACKGROUND

WHEREAS, the Company desires and has requested that Manager serve as an independent manager of the Company.

WHEREAS, the Company and Manager are entering into this Agreement to induce the Manager to serve in the capacity set forth above and to set forth certain understandings between the parties.

AGREEMENT

NOW, THEREFORE, in consideration of the mutual agreements and promises contained herein, and other good and valuable consideration, the adequacy and sufficiency of which are hereby acknowledged, Company and Manager hereby agree as follows:

1.    DUTIES. Manager agrees to (i) serve as an independent manager of the Company and to beavailable to perform the duties consistent with such position pursuant to the Articles of Organization of the Company and the Sixth Amended and Restated Limited Liability Company Agreement of the Company (all as amended and as may be amended from time to time, and, together, the “Organizational Documents”) and the laws of the state of Texas; and (ii) serve as a member of one or more committees of the Board of Managers (the “Board”) as may be requested from time to time by the Company or a majority of the Board, and for which Manager is qualified to serve. Manager agrees to devote as much time as is reasonably necessary to perform completely his duties as an independent manager of the Company. The parties hereto acknowledge and agree that Manager is being engaged to serve as an independent manager of the Company only and is not being engaged to serve, and shall not serve, the Company in any other capacity.

2.    TERM. By execution of this Agreement, Manager accepts his appointment or election as independent manager of the Company and agrees to serve in such capacity until the earlier of (i) the election and qualification of a successor to Manager, and (ii) Manager’s death, resignation or removal.

3.    COMPENSATION. For all services to be rendered by Manager hereunder, and so long as Manager has not been removed as a manager of the Company, the Company agrees to pay, or to cause one or more of its subsidiaries or affiliates to pay, Manager a monthly fee of $25,000, payable in advance each month on the first business day of each applicable month, with the first monthly fee due upon execution of this Agreement; provided, however, that notwithstanding anything in this Agreement to the contrary, Manager shall be entitled to receive a minimum of $225,000 in aggregate fees from the Company to the extent the Manager is removed as a manager of the Company without cause.

As used herein, “cause” “means any of the following: (A) the Manager’s final conviction by a court of competent jurisdiction of a felony involving moral turpitude, or entering the plea of nolo contendere to such felony by the Manager; (B) the commission by the Manager of a demonstrable act of material fraud, or a proven and material misappropriation of funds or other property, of or upon the Company or any of its affiliates; (C) the engagement by the Manager, without the written approval of the Company, in any material activity which directly competes with the business of the Company or any of its affiliates, or which would directly result in a material injury to the business or reputation of the Company or any of its affiliates; or (D) the breach by Manager of any material provision of this Agreement. With respect to items (C) and (D) above, in order to constitute “cause” hereunder, Manager must also fail to cure such breach within a reasonable time period set by the Company but in no event less than twenty (20) calendar days after Manager’s receipt of such notice.

4.    EXPENSES. In addition to the compensation provided in Section 3 hereof, the Company will reimburse or will cause one or more of its subsidiaries to reimburse Managerfor reasonable and documented business-related expenses incurred in good faith in the performance of Manager’sduties for the Company. Such payments shall be made by the Company or one or more of its subsidiaries or affiliates upon submission by Managerof a signed statement itemizing the expenses incurred. Such statement shall be accompanied by sufficient documentary matter to support the expenditures.

5.    CONFIDENTIALITY. The Company and Managereach acknowledge that in order for Manager to perform his duties as an independent Manager of the Company, Manager shall necessarily be obtaining access to certain confidential information concerning the Company and its affiliates (“Confidential Information”). The rights and obligations of Manager and

1

the Company with respect to such Confidential Information are governed by the terms of that certain Confidentiality Agreement, dated as of June 8, 2019, between Company and Manager.

6.    INDEMNIFICATION.

(a)Certain Definitions. For purposes of this Section 6:

References to “agent” shall mean any person who is or was a manager, officer or employee of the Company or other person authorized by the Company to act for the Company.

“Corporate Status” describes the status of a person who is or was a manager of the Company.

“Disinterested Manager” shall mean a manager of the Company who is not and was not a party to the Proceeding (as defined below) in respect of which indemnification is sought by Manager.

“Exchange Act” shall mean the Securities Exchange Act of 1934, as amended.

“Expenses” shall include all direct and indirect costs, fees and expenses of any type or nature whatsoever, including, without limitation, all reasonable attorneys’ fees and costs, retainers, court costs, transcript costs, fees of experts, witness fees, travel expenses, fees of private investigators and professional advisors, duplicating costs, printing and binding costs, telephone charges, postage, delivery service fees, fax transmission charges, secretarial services and all other disbursements, obligations or expenses in connection with prosecuting, defending, preparing to prosecute or defend, investigating, being or preparing to be a witness in, settlement or appeal of, or otherwise participating in, a Proceeding (as defined below), including reasonable compensation for time spent by Manager for which he or she is not otherwise compensated by the Company or any third party. Expenses also shall include Expenses incurred in connection with any appeal resulting from any Proceeding (as defined below), including without limitation the principal, premium, security for, and other costs relating to any cost bond, supersedeas bond, or other appeal bond or its equivalent. Expenses, however, shall not include amounts paid in settlement by Manager or the amount of judgments or fines against Manager.

References to “fines” shall include any excise tax assessed on Manager with respect to any employee benefit plan; and if Manager acted in good faith and in a manner Manager reasonably believed to be in the best interests of the participants and beneficiaries of an employee benefit plan, Manager shall be deemed to have acted in a manner “not opposed to the best interests of the Company” as referred to in this Agreement.

“Independent Counsel” shall mean a law firm or a member of a law firm with significant experience in matters of corporation law and that neither presently is, nor in the past five years has been, retained to represent: (i) the Company or Manager in any matter material to either such party (other than with respect to matters concerning Manager under this Agreement, or of other indemnitees under similar indemnification agreements); or (ii) any other party to the Proceeding (as defined below) giving rise to a claim for indemnification hereunder. Notwithstanding the foregoing, the term “Independent Counsel” shall not include any person who, under the applicable standards of professional conduct then prevailing, would have a conflict of interest in representing either the Company or Manager in an action to determine Manager’s rights under this Agreement.

The term “Person” shall have the meaning as set forth in Sections 13(d) and 14(d) of the Exchange Act as in effect on the date hereof; provided, however, that “Person” shall exclude: (i) the Company; (ii) any Subsidiaries (as defined below) of the Company; (iii) any employment benefit plan of the Company or of a Subsidiary (as defined below) of the Company or of any corporation owned, directly or indirectly, by the members of the Company in substantially the same proportions as their ownership of membership interests of the Company; and (iv) any trustee or other fiduciary holding securities under an employee benefit plan of the Company or of a Subsidiary (as defined below) of the Company or of a corporation owned directly or indirectly by the members of the Company in substantially the same proportions as their ownership of membership interests of the Company.

The term “Proceeding” shall include any threatened, pending or completed action, suit, arbitration, mediation, alternate dispute resolution mechanism, investigation, inquiry, administrative hearing or any other actual, threatened or completed proceeding, whether brought in the right of the Company or otherwise and whether of a civil (including intentional or unintentional tort claims), criminal, administrative or investigative or related nature, in which Manager was, is, will or might be involved as a party or otherwise by reason of the fact that Manager is or was a manager of the Company, by reason of any action (or failure to act) taken by him or of any action (or failure to act) on his part while acting as a manager of the Company, in each case whether or not serving in such capacity at the time any liability or expense is incurred for which indemnification, reimbursement, or advancement of expenses can be provided under this Agreement.

2

The term “Subsidiary,” with respect to any Person, shall mean any corporation, limited liability company, partnership, joint venture, trust or other entity of which a majority of the voting power of the voting equity securities or equity interest is owned, directly or indirectly, by that Person.

(b)Indemnity in Third-Party Proceedings. To the fullest extent permitted by applicable law, the Company shall indemnify, hold harmless and exonerate Manager in accordance with the provisions of this Section 6(b) if Manager was, is, or is threatened to be made, a party to or a participant (as a witness, deponent or otherwise) in any Proceeding, other than a Proceeding by or in the right of the Company to procure a judgment in its favor by reason of Manager’s Corporate Status. Pursuant to this Section 6(b), Manager shall be indemnified, held harmless and exonerated against all Expenses, judgments, liabilities, fines, penalties and amounts paid in settlement (including all interest, assessments and other charges paid or payable in connection with or in respect of such Expenses, judgments, fines, penalties and amounts paid in settlement) actually, and reasonably incurred by Manager or on his behalf in connection with such Proceeding or any claim, issue or matter therein, if Manager acted in good faith and in a manner he reasonably believed to be in or not opposed to the best interests of the Company and, in the case of a criminal Proceeding, had no reasonable cause to believe that his conduct was unlawful.

(c)    Indemnity in Proceedings By or in the Right of the Company. To the fullest extent permitted by applicable law, the Company shall indemnify, hold harmless and exonerate Manager in accordance with the provisions of this Section 6(c) if Manager was, is, or is threatened to be made, a party to or a participant (as a witness, deponent or otherwise) in any Proceeding by or in the right of the Company to procure a judgment in its favor by reason of Manager’s Corporate Status. Pursuant to this Section 6(c), Manager shall be indemnified, held harmless and exonerated against all Expenses actually and reasonably incurred by him or on his behalf in connection with such Proceeding or any claim, issue or matter therein, if Manager acted in good faith and in a manner he reasonably believed to be in or not opposed to the best interests of the Company. No indemnification, hold harmless or exoneration for Expenses shall be made under this Section 6(c) in respect of any claim, issue or matter as to which Manager shall have been finally adjudged by a court to be liable to the Company, unless and only to the extent that any court in which the Proceeding was brought shall determine upon application that, despite the adjudication of liability but in view of all the circumstances of the case, Manager is fairly and reasonably entitled to indemnification, to be held harmless or to exoneration.

(d)    Indemnification for Expenses of a Party Who Is Wholly or Partly Successful. Notwithstanding any other provisions of this Agreement, to the extent that Manager was or is, by reason of Manager’s Corporate Status, a party to (or a participant in) and is successful, on the merits or otherwise, in any Proceeding or in defense of any claim, issue or matter therein, in whole or in part, the Company shall, to the fullest extent permitted by applicable law, indemnify, hold harmless and exonerate Manager against all Expenses actually and reasonably incurred by him in connection therewith. If Manager is not wholly successful in such Proceeding but is successful, on the merits or otherwise, as to one or more but less than all claims, issues or matters in such Proceeding, the Company shall, to the fullest extent permitted by applicable law, indemnify, hold harmless and exonerate Manager against all Expenses actually and reasonably incurred by him or on his behalf in connection with each successfully resolved claim, issue or matter. If Manager is not wholly successful in such Proceeding, the Company also shall, to the fullest extent permitted by applicable law, indemnify, hold harmless and exonerate Manager against all Expenses reasonably incurred in connection with a claim, issue or matter related to any claim, issue, or matter on which Manager was successful. For purposes of this Section and without limitation, the termination of any claim, issue or matter in such a Proceeding by dismissal, with or without prejudice, shall be deemed to be a successful result as to such claim, issue or matter.

(e)    Indemnification for Expenses as a Witness. Notwithstanding any other provision of this Agreement, to the extent that Manager is, by reason of his Corporate Status, a witness or deponent in any Proceeding to which Manager was or is not a party or threatened to be made a party, he shall, to the fullest extent permitted by applicable law, be indemnified, held harmless and exonerated against all Expenses actually and reasonably incurred by him or on his behalf in connection therewith.

(f)    Additional Indemnification, Hold Harmless, and Exoneration Rights. Notwithstanding any limitation in Sections 6(b), 6(c), or 6(d), the Company shall, to the fullest extent permitted by applicable law, indemnify, hold harmless and exonerate Manager if Manager is a party to or threatened to be made a party to any Proceeding (including a Proceeding by or in the right of the Company to procure a judgment in its favor) against all Expenses, judgments, liabilities, fines, penalties and amounts paid in settlement (including all interest, assessments and other charges paid or payable in connection with or in respect of such Expenses, judgments, liabilities, fines, penalties and amounts paid in settlement) actually and reasonably incurred by Manager in connection with the Proceeding. No indemnification, hold harmless or exoneration rights shall be available under this Section 6(f)(i) on account of Manager’s conduct which is an act or omission not in good faith or which involves intentional misconduct or a knowing violation of the law.

(g)    Contribution in the Event of Liability.

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(i)    To the fullest extent permissible under applicable law, if the indemnification, hold harmless and/or exoneration rights provided for in this Agreement are unavailable to Manager in whole or in part for any reason whatsoever, the Company, in lieu of indemnifying, holding harmless or exonerating Manager, shall pay, in the first instance, the entire amount incurred by Manager, whether for judgments, liabilities, fines, penalties, amounts paid or to be paid in settlement and/or for Expenses, in connection with any Proceeding without requiring Manager to contribute to such payment, and the Company hereby waives and relinquishes any right of contribution it may have at any time against Manager.

(ii)    The Company shall not enter into any settlement of any Proceeding in which the Company is jointly liable with Manager (or would be if joined in such Proceeding) unless such settlement provides for a full and final release of all claims asserted against Manager.

(iii)    The Company hereby agrees to fully indemnify, hold harmless and exonerate Manager from any claims for contribution which may be brought by officers, managers, directors or employees of the Company other than Manager who may be jointly liable with Manager.

(h)    Exclusions. Notwithstanding any provision in this Agreement, the Company shall not be obligated under this Agreement to make any indemnification, advance expenses, hold harmless or exoneration payment in connection with any claim made against Manager:

(i)    for which payment has actually been received by or on behalf of Manager under any insurance policy, contract, agreement or other indemnity or advancement provision or otherwise, except with respect to any excess beyond the amount actually received under any insurance policy, contract, agreement, other indemnity or advancement provision or otherwise;

(ii)    for an accounting of profits made from the purchase and sale (or sale and purchase) by Manager of securities of the Company within the meaning of Section 16(b) of the Exchange Act (or any successor rule) or similar provisions of state statutory law or common law; or

(iii)    except as otherwise provided in Sections 6(m)(vi) and 6(m)(vii) hereof, in connection with any Proceeding (or any part of any Proceeding) initiated by Manager, including any Proceeding (or any part of any Proceeding) initiated by Manager against the Company or its managers, directors, officers, employees or other indemnitees, unless (A) the Board authorized the Proceeding (or any part of any Proceeding) prior to its initiation or (B) the Company provides the indemnification, advance of expenses, hold harmless or exoneration payment, in its sole discretion, pursuant to the powers vested in the Company under applicable law. Manager shall seek payments or advances from the Company only to the extent that such payments or advances are unavailable from any insurance policy of the Company covering Manager.

(i)    Advances of Expenses; Defense of Claim.

(i)    Notwithstanding any provision of this Agreement to the contrary, and to the fullest extent not prohibited by applicable law, the Company shall pay the Expenses incurred by Manager (or reasonably expected by Manager to be incurred by Manager within three months) in connection with any Proceeding within ten (10) days after the receipt by the Company of a statement or statements requesting such advances from time to time, prior to the final disposition of any Proceeding. Advances shall, to the fullest extent permitted by law, be unsecured and interest free. Advances shall, to the fullest extent permitted by law, be made without regard to Manager’s ability to repay the Expenses and without regard to Manager’s ultimate entitlement to be indemnified, held harmless or exonerated under the other provisions of this Agreement. Advances shall include any and all reasonable Expenses incurred pursuing a Proceeding to enforce this right of advancement, including Expenses incurred preparing and forwarding statements to the Company to support the advances claimed. To the fullest extent required by applicable law, such payments of Expenses in advance of the final disposition of the Proceeding shall be made only upon the Company’s receipt of (i) an undertaking, by or on behalf of Manager, to repay the advanced amounts to the extent that it is ultimately determined that Manager is not entitled to be indemnified, held harmless or exonerated by the Company under the provisions of this Agreement, the Organizational Documents, applicable law or otherwise, and (ii) a written affirmation by the Manager of his good faith belief that he has met the standard of conduct necessary for indemnification under Title 1, Chapter 8 of the Texas Business Organizations Code. This Section 6(i)(i) shall not apply to any claim made by Manager for which an indemnification, advance of expenses, hold harmless or exoneration payment is excluded pursuant to Section 6(h).

(ii)    The Company will be entitled to participate in the Proceeding at its own expense.

(iii)    The Company shall not settle any action, claim or Proceeding (in whole or in part) which would impose any Expense, judgment, liability, fine, penalty or limitation on Manager without Manager’s prior written consent.

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(j)    Procedure for Notification and Application for Indemnification.

(i)    Manager agrees to notify promptly the Company in writing upon being served with any summons, citation, subpoena, complaint, indictment, information or other document relating to any Proceeding, claim, issue or matter therein which may be subject to indemnification, hold harmless or exoneration rights, or advancement of Expenses covered hereunder. The failure of Manager to so notify the Company shall not relieve the Company of any obligation which it may have to Manager under this Agreement, or otherwise.

(ii)    Manager may deliver to the Company a written application to indemnify, hold harmless or exonerate Manager in accordance with this Agreement. Such application(s) may be delivered from time to time and at such time(s) as Manager deems appropriate in his sole discretion. Following such a written application for indemnification by Manager, Manager’s entitlement to indemnification shall be determined according to Section 6(k)(i) of this Agreement.

(k)    Procedure Upon Application for Indemnification.

(i)    A determination, if required by applicable law, with respect to Manager’s entitlement to indemnification shall be made in the specific case by one of the following methods, which shall be at the election of Manager: (A) by a majority vote of the Disinterested Managers, even though less than a quorum of the Board, (B) by a committee of such managers designated by majority vote of such managers, or (C) if there are no Disinterested Managers or if such managers so direct, by Independent Counsel in a written opinion to the Board, a copy of which shall be delivered to Manager. The Company promptly will advise Manager in writing with respect to any determination that Manager is or is not entitled to indemnification, including a description of any reason or basis for which indemnification has been denied. If it is so determined that Manager is entitled to indemnification, payment to Manager shall be made within ten (10) days after such determination. Manager shall reasonably cooperate with the person, persons or entity making such determination with respect to Manager’s entitlement to indemnification, including providing to such person, persons or entity upon reasonable advance request any documentation or information which is not privileged or otherwise protected from disclosure and which is reasonably available to Manager and reasonably necessary to such determination. Any costs or Expenses (including reasonable attorneys’ fees and disbursements) incurred by Manager in so cooperating with the person, persons or entity making such determination shall be borne by the Company (irrespective of the determination as to Manager’s entitlement to indemnification) and the Company hereby agrees to indemnify and to hold Manager harmless therefrom.

(ii)    In the event the determination of entitlement to indemnification is to be made by Independent Counsel pursuant to Section 6(k)(i) hereof, the Independent Counsel shall be selected as provided in this Section 6(k)(ii). The Independent Counsel shall be selected by Manager (unless Manager shall request that such selection be made by the Board), and Manager shall give written notice to the Company advising it of the identity of the Independent Counsel so selected and certifying that the Independent Counsel so selected meets the requirements of “Independent Counsel” as defined in Section 6(a) of this Agreement. If the Independent Counsel is selected by the Board, the Company shall give written notice to Manager advising him of the identity of the Independent Counsel so selected and certifying that the Independent Counsel so selected meets the requirements of “Independent Counsel” as defined in Section 6(a) of this Agreement. In either event, Manager or the Company, as the case may be, may, within ten (10) days after such written notice of selection shall have been received, deliver to the Company or to Manager, as the case may be, a written objection to such selection; provided, however, that such objection may be asserted only on the ground that the Independent Counsel so selected does not meet the requirements of “Independent Counsel” as defined in Section 6(a) of this Agreement, and the objection shall set forth with particularity the factual basis of such assertion. Absent a proper and timely objection, the person so selected shall act as Independent Counsel. If such written objection is so made and substantiated, the Independent Counsel so selected may not serve as Independent Counsel unless and until such objection is withdrawn or a court of competent jurisdiction has determined that such objection is without merit. If, within twenty (20) days after submission by Manager of a written request for indemnification pursuant to Section 6(j)(ii) hereof, no Independent Counsel shall have been selected and not objected to, either the Company or Manager may petition any court in the State of Texas having subject matter jurisdiction thereof and in which venue is proper for resolution of any objection which shall have been made by the Company or Manager to the other’s selection of Independent Counsel and/or for the appointment as Independent Counsel of a person selected by such court, and the person with respect to whom all objections are so resolved or the person so appointed shall act as Independent Counsel under Section 6(k)(i) hereof. Upon the due commencement of any judicial proceeding or arbitration pursuant to Section 6(m)(i) of this Agreement, Independent Counsel shall be discharged and relieved of any further responsibility in such capacity (subject to the applicable standards of professional conduct then prevailing).

(iii)    The Company agrees to pay the reasonable fees and expenses of Independent Counsel and to fully indemnify and hold harmless such Independent Counsel against any and all Expenses, claims, liabilities and damages arising out of or relating to this Agreement or its engagement pursuant hereto.

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(l) Presumptions and Effect of Certain Proceedings.

(i)    In making a determination with respect to entitlement to indemnification hereunder, the person, persons or entity making such determination shall presume that Manager is entitled to indemnification under this Agreement if Manager has submitted a request for indemnification in accordance with Section 6(j)(ii) of this Agreement, and the Company shall have the burden of proof to overcome that presumption in connection with the making by any person, persons or entity of any determination contrary to that presumption. Neither the failure of the Company (including by the Disinterested Directors or Independent Counsel) to have made a determination prior to the commencement of any action pursuant to this Agreement that indemnification is proper in the circumstances because Manager has met the applicable standard of conduct, nor an actual determination by the Company (including by the Disinterested Directors or Independent Counsel) that Manager has not met such applicable standard of conduct, shall be a defense to the action or create a presumption that Manager has not met the applicable standard of conduct.

(ii)    If the person, persons or entity empowered or selected under Section 6(k) of this Agreement to determine whether Manager is entitled to indemnification shall not have made a determination within thirty (30) days after receipt by the Company of the request therefor, the requisite determination of entitlement to indemnification shall, to the fullest extent permitted by law, be deemed to have been made and Manager shall be entitled to such indemnification, absent (i) a misstatement by Manager of a material fact, or an omission of a material fact necessary to make Manager’s statement not materially misleading, in connection with the request for indemnification, or (ii) a final judicial determination that any or all such indemnification is expressly prohibited under applicable law; provided, however, that such 30-day period may be extended for a reasonable time, not to exceed an additional fifteen (15) days, if the person, persons or entity making the determination with respect to entitlement to indemnification in good faith requires such additional time for the obtaining or evaluating of documentation and/or information relating thereto.

(iii)    The termination of any Proceeding or of any claim, issue or matter therein, by judgment, order, settlement or conviction, or upon a plea of nolo contendere or its equivalent, shall not (except as otherwise expressly provided in this Agreement) of itself adversely affect the right of Manager to indemnification or create a presumption that Manager did not act in good faith and in a manner which he reasonably believed to be in or not opposed to the best interests of the Company or, with respect to any criminal Proceeding, that Manager had reasonable cause to believe that his conduct was unlawful.

(iv)    For purposes of any determination of good faith, Manager shall be deemed to have acted in good faith if Manager’s action is based on the records or books of account of the Company, including financial statements, or on information supplied to Manager by the managers or officers of the Company in the course of their duties, or on the advice of legal counsel for the Company, its Board, any committee of the Board or any manager of the Company, or on information or records given or reports made to the Company, its Board, any committee of the Board or any manager, by an independent certified public accountant or by an appraiser or other expert selected by the Company, its Board, any committee of the Board or any manager. The provisions of this Section 6(l)(iv) shall not be deemed to be exclusive or to limit in any way the other circumstances in which Manager may be deemed or found to have met the applicable standard of conduct set forth in this Agreement.

(v)    The knowledge and/or actions, or failure to act, of any other manager, officer, agent or employee of the Company shall not be imputed to Manager for purposes of determining the right to indemnification under this Agreement.

(m)Remedies of Manager.

(i)    In the event that (i) a determination is made pursuant to Section 6(k) of this Agreement that Manager is not entitled to indemnification under this Agreement, (ii) advancement of Expenses, to the fullest extent permitted by applicable law, is not timely made pursuant to Section 10 of this Agreement, (iii) no determination of entitlement to indemnification shall have been made pursuant to Section 6(k)(i) of this Agreement within thirty (30) days after receipt by the Company of the request for indemnification, (iv) payment of indemnification is not made pursuant to Section 6(d), 6(e), 6(f) or the last sentence of Section 6(k)(i) of this Agreement within ten (10) days after receipt by the Company of a written request therefor, (v) a contribution payment is not made in a timely manner pursuant to Section 6(g) of this Agreement, (vi) payment of indemnification pursuant to Section 6(b) or 6(c) of this Agreement is not made within ten (10) days after a determination has been made that Manager is entitled to indemnification, or (vii) payment to Manager pursuant to any hold harmless or exoneration rights under this Agreement or otherwise is not made in accordance with this Agreement, Manager shall be entitled to an adjudication by any court in the State of Texas having subject matter jurisdiction thereof and in which venue is proper to such indemnification, hold harmless, exoneration, contribution or advancement rights. Alternatively, Manager, at his option, may seek an award in arbitration to be conducted by a single arbitrator pursuant to the Commercial Arbitration Rules of the American Arbitration Association. Except as set forth herein,

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the provisions of Texas law (without regard to its conflict of laws rules) shall apply to any such arbitration. The Company shall not oppose Manager’s right to seek any such adjudication or award in arbitration.

(ii)    In the event that a determination shall have been made pursuant to Section 6(k)(i) of this Agreement that Manager is not entitled to indemnification, any judicial proceeding or arbitration commenced pursuant to this Section 6(m) shall be conducted in all respects as a de novo trial, or arbitration, on the merits and Manager shall not be prejudiced by reason of that adverse determination.

(iii)    In any judicial proceeding or arbitration commenced pursuant to this Section 6(m), Manager shall be presumed to be entitled to be indemnified, held harmless, exonerated and advanced Expenses under this Agreement and the Company shall have the burden of proving Manager is not entitled to be indemnified, held harmless, exonerated and advanced Expenses, as the case may be, and the Company may not refer to or introduce into evidence any determination pursuant to Section 6(k)(i) of this Agreement adverse to Manager for any purpose. If Manager commences a judicial proceeding or arbitration pursuant to this Section 6(m), Manager shall not be required to reimburse the Company for any advances pursuant to Section 6(i) until a final determination is made with respect to Manager’s entitlement to indemnification (as to which all rights of appeal have been exhausted or lapsed).

(iv)    If a determination shall have been made pursuant to Section 6(k)(i) of this Agreement that Manager is entitled to indemnification, the Company shall be bound by such determination in any judicial proceeding or arbitration commenced pursuant to this Section 6(m), absent (i) a misstatement by Manager of a material fact, or an omission of a material fact necessary to make Manager’s statement not materially misleading, in connection with the request for indemnification, or (ii) a prohibition of such indemnification under applicable law.

(v)    The Company shall be precluded from asserting in any judicial proceeding or arbitration commenced pursuant to this Section 6(m) that the procedures and presumptions of this Agreement are not valid, binding and enforceable and shall stipulate in any such court or before any such arbitrator that the Company is bound by all the provisions of this Agreement.

(vi)    The Company shall indemnify and hold harmless Manager to the fullest extent permitted by law against all Expenses and, if requested by Manager, shall (within ten (10) days after the Company’s receipt of such written request) pay to Manager, to the fullest extent permitted by applicable law, such Expenses which are incurred by Manager in connection with any judicial proceeding or arbitration brought by Manager: (A) to enforce his rights under, or to recover damages for breach of, this Agreement or any other indemnification, hold harmless, exoneration, advancement or contribution agreement or provision of the Organizational Documents now or hereafter in effect; or (B) for recovery or advances under any insurance policy maintained by any person for the benefit of Manager, regardless of the outcome and whether Manager ultimately is determined to be entitled to such indemnification, hold harmless or exoneration right, advancement, contribution or insurance recovery, as the case may be (unless such judicial proceeding or arbitration was not brought by Manager in good faith).

(vii)    Interest shall be paid by the Company to Manager at the legal rate under Texas law for amounts which the Company indemnifies, holds harmless or exonerates, or advances, or is obliged to indemnify, hold harmless or exonerate or advance for the period commencing with the date on which Manager requests indemnification, to be held harmless, exonerated, contribution, reimbursement or advancement of any Expenses and ending with the date on which such payment is made to Manager by the Company.

(n)Security. Notwithstanding anything herein to the contrary, to the extent requested by Manager and approved by the Board, the Company may at any time and from time to time provide security to Manager for the Company’s obligations hereunder through an irrevocable bank line of credit, funded trust or other collateral. Any such security, once provided to Manager, may not be revoked or released without the prior written consent of Manager.

(o)Non-Exclusivity; Survival of Rights; Insurance; Subrogation.

(i)    The rights of Manager as provided by this Agreement shall not be deemed exclusive of any other rights to which Manager may at any time be entitled under applicable law, the Organizational Documents, any agreement, a vote of members of the Company or a resolution of managers, or otherwise. No amendment, alteration or repeal of this Agreement or of any provision hereof shall limit or restrict any right of Manager under this Agreement in respect of any Proceeding (regardless of when such Proceeding is first threatened, commenced or completed) or claim, issue or matter therein arising out of, or related to, any action taken or omitted by such Manager in his Corporate Status prior to such amendment, alteration or repeal. To the extent that a change in applicable law, whether by statute or judicial decision, permits greater indemnification, hold harmless or exoneration rights or advancement of Expenses than would be afforded currently under the Organizational Documents or this Agreement, it

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is the intent of the parties hereto that Manager shall enjoy by this Agreement the greater benefits so afforded by such change. No right or remedy herein conferred is intended to be exclusive of any other right or remedy, and every other right and remedy shall be cumulative and in addition to every other right and remedy given hereunder or now or hereafter existing at law or in equity or otherwise. The assertion or employment of any right or remedy hereunder, or otherwise, shall not prevent the concurrent assertion or employment of any other right or remedy.

(ii)    The Company may purchase and maintain insurance or furnish similar protection or make other arrangements including, but not limited to, providing a trust fund, letter of credit, or surety bond (“Indemnification Arrangements”) on behalf of Manager against any liability asserted against him or incurred by or on behalf of him or in such capacity as a manager, employee or agent of the Company, or arising out of his status as such, whether or not the Company would have the power to indemnify him against such liability under the provisions of this Agreement. The purchase, establishment, and maintenance of any such Indemnification Arrangement shall not in any way limit or affect the rights and obligations of the Company or of Manager under this Agreement except as expressly provided herein, and the execution and delivery of this Agreement by the Company and Manager shall not in any way limit or affect the rights and obligations of the Company or the other party or parties thereto under any such Indemnification Arrangement.

(iii)    To the extent that the Company or any of its affiliates maintains an insurance policy or policies providing liability insurance for managers, employees, or agents of the Company, Manager shall be covered by such policy or policies in accordance with its or their terms to the maximum extent of the coverage available for any such managers, employees or agents under such policy or policies. If, at the time the Company receives notice from any source of a Proceeding as to which Manager is a party or a participant (as a witness, deponent or otherwise), the Company has director and officer liability insurance in effect, the Company shall give prompt notice of such Proceeding to the insurers in accordance with the procedures set forth in the respective policies. The Company shall thereafter take all necessary or desirable action to cause such insurers to pay, on behalf of Manager, all amounts payable as a result of such Proceeding in accordance with the terms of such policies.

(iv)    In the event of any payment under this Agreement, the Company, to the fullest extent permitted by law, shall be subrogated to the extent of such payment to all of the rights of recovery of Manager, who shall execute all papers required and take all action necessary to secure such rights, including execution of such documents as are necessary to enable the Company to bring suit to enforce such rights.

(p)Duration of Agreement. All agreements and obligations of the Company contained herein shall continue during the period Manager serves as a manager of the Company and shall continue thereafter so long as Manager shall be subject to any possible Proceeding (including any rights of appeal thereto and any Proceeding commenced by Manager pursuant to Section 6(m) of this Agreement) by reason of his Corporate Status, whether or not he is acting in any such capacity at the time any liability or expense is incurred for which indemnification or advancement can be provided under this Agreement.

7.     INFORMATION. The Company shall make its management available to discuss the business and operations of the Company upon Manager’s reasonable request.

8.    EFFECT OF WAIVER. The waiver by either party of the breach of any provision of this Agreement shall not operate as or be construed as a waiver of any subsequent breach thereof.

9.    GOVERNING LAW. This Agreement shall be interpreted in accordance with, and the rights of the parties hereto shall be determined by, the laws of the state of Texas without reference to its conflicts of laws principles.

10.    ASSIGNMENT. The rights and benefits of the Company under this Agreement shall not be transferable except by operation of law without Manager’s consent, and all the covenants and agreements hereunder shall inure to the benefit of, and be enforceable by or against, its successors and assigns. The duties and obligations of Manager under this Agreement are personal and thereforeManagermay not assign any right or duty under this Agreement without the prior written consent of the Company.

11.    BINDING EFFECT; SUCCESSORS AND ASSIGNS. This Agreement shall be binding upon and inure to the benefit of and be enforceable by each of the parties hereto and their respective successors, permitted assigns (including any direct or indirect successor by purchase, merger, consolidation or otherwise to all or substantially all of the business or assets of the Company), heirs and personal legal representatives.

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12.     SEVERABILITY; HEADINGS. If any provision of this Agreement is held by a court of competent jurisdiction to be invalid as applied to any fact or circumstance, it shall be modified by the minimum amount necessary to render it valid, and any such invalidity shall not affect any other provision, or the same provision as applied to any other fact or circumstance. The headings used in this Agreement are for convenience only and shall not be construed to limit or define the scope of any Section or provision.

13.    COUNTERPARTS; AMENDMENT. This Agreement may be executed in one or more counterparts, each of which shall be considered one and the same agreement. No amendment to this Agreement shall be effective unless in writing signed by each of the parties hereto.

The parties hereto have caused this Independent Manager Agreement to be executed on the date first above written.

For Alta Mesa Holdings GP, LLC

By:	/s/ John C. Regan
Name:	John C. Regan
Title:	Chief Financial Officer

By:	/s/ Patrick J. Bartels Jr.
Name:	Patrick J. Bartels Jr.
Title:	Managing Member
	Redan Advisors LLC

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EX-31.1

EXHIBIT 31.1

CERTIFICATION OF CHIEF EXECUTIVE OFFICER

I, James T. Hackett, certify that:

1. I have reviewed this Quarterly Report on Form 10-Q of Alta Mesa Holdings, LP;

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 Alta Mesa Holdings, LP 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 Alta Mesa Holdings, LP 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 Alta Mesa Holdings, LP, 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 Alta Mesa Holdings, LP’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 Alta Mesa Holdings, LP’s internal control over financial reporting that occurred during Alta Mesa Holdings, LP’s most recent fiscal quarter that has materially affected, or is reasonably likely to materially affect, Alta Mesa Holdings, LP’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 Alta Mesa Holdings, LP’s auditors and the audit committee of Alta Mesa Holdings, LP’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 Alta Mesa Holdings, LP’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 Alta Mesa Holdings, LP’s internal control over financial reporting.

Date: June 13, 2019

/s/ James T. Hackett

James T. Hackett

Interim Chief Executive Officer

Alta Mesa Holdings GP, LLC

(as general partner of Alta Mesa Holdings, LP)

EX-31.2

EXHIBIT 31.2

CERTIFICATION OF CHIEF FINANCIAL OFFICER

I, John C. Regan, certify that:

1. I have reviewed this Quarterly Report on Form 10-Q of Alta Mesa Holdings, LP;

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 Alta Mesa Holdings, LP 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 Alta Mesa Holdings, LP 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 Alta Mesa Holdings, LP, 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 Alta Mesa Holdings, LP’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 Alta Mesa Holdings, LP’s internal control over financial reporting that occurred during Alta Mesa Holdings, LP’s most recent fiscal quarter that has materially affected, or is reasonably likely to materially affect, Alta Mesa Holdings, LP’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 Alta Mesa Holdings, LP’s auditors and the audit committee of Alta Mesa Holdings, LP’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 Alta Mesa Holdings, LP’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 Alta Mesa Holdings, LP’s internal control over financial reporting.

Date: June 13, 2019

/s/ John C. Regan

John C. Regan

Chief Financial Officer

Alta Mesa Holdings GP, LLC

(as general partner of Alta Mesa Holdings, LP)

EX-32.1

EXHIBIT 32.1

CERTIFICATION OF

CHIEF EXECUTIVE OFFICER

PURSUANT TO 18 U.S.C. SECTION 1350

I, James T. Hackett, Interim Chief Executive Officer of Alta Mesa Holdings, GP, LLC, the general partner of Alta Mesa Holdings, LP (the “Company”), certify, pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, 18 U.S.C. Section 1350, that, to the best of my knowledge;

1. The Quarterly Report on Form 10-Q of the Company for the period ended March 31, 2019 (the “Report”) fully complies with the requirements of Section 13(a) of the Securities Exchange Act of 1934 (15 U.S.C. 78m); and

2. The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date: June 13, 2019

/s/ James T. Hackett

James T. Hackett

Interim Chief Executive Officer

Alta Mesa Holdings GP, LLC

(as general partner of Alta Mesa Holdings, LP)

A signed original of this written statement required by Section 906 has been provided to the Company and will be retained by the Company and furnished to the Securities and Exchange Commission or its staff upon request.

EX-32.2

EXHIBIT 32.2

CERTIFICATION OF

CHIEF FINANCIAL OFFICER

PURSUANT TO 18 U.S.C. SECTION 1350

I, John C. Regan, Chief Financial Officer of Alta Mesa Holdings, GP, LLC, the general partner of Alta Mesa Holdings, LP (the “Company”), certify, pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, 18 U.S.C. Section 1350, that, to the best of my knowledge;

1. The Quarterly Report on Form 10-Q of the Company for the period ended March 31, 2019 (the “Report”) fully complies with the requirements of Section 13(a) of the Securities Exchange Act of 1934 (15 U.S.C. 78m); and

2. The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date: June 13, 2019

/s/ John C. Regan

John C. Regan

Chief Financial Officer

Alta Mesa Holdings GP, LLC

(as general partner of Alta Mesa Holdings, LP)

A signed original of this written statement required by Section 906 has been provided to the Company and will be retained by the Company and furnished to the Securities and Exchange Commission or its staff upon request.

XML

Document And Entity Information	3 Months Ended
	Mar. 31, 2019 shares
Document And Entity Information [Abstract]
Entity Registrant Name	Alta Mesa Holdings, LP
Entity Central Index Key	0001518403
Document Type	10-Q
Document Period End Date	Mar. 31, 2019
Amendment Flag	false
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	Q1
Current Fiscal Year End Date	--12-31
Entity Filer Category	Non-accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	true
Entity Ex Transition Period	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding (in shares)	0
Entity Current Reporting Status	No

XML

Condensed Consolidated Statements Of Operations (Unaudited) - USD ($) $ in Thousands	1 Months Ended	2 Months Ended	3 Months Ended
	Feb. 08, 2018	Mar. 31, 2018	Mar. 31, 2019
Revenue
Operating revenue		$ 50,757	$ 116,597
Gain on sale of assets		5,139	1,483
Gain (loss) on derivatives		(22,011)	(23,777)
Total revenue		33,885	94,303
Operating expenses
Lease operating		8,317	25,108
Transportation and marketing		5,582	17,761
Production taxes		1,415	5,483
Workovers		1,245	197
Exploration		1,585	2,054
Depreciation, depletion and amortization		11,038	34,675
General and administrative		34,654	20,947
Total operating expenses		63,836	106,225
Operating income		(29,951)	(11,922)
Other income (expense)
Interest expense		(5,196)	(12,830)
Interest income and other		546	27
Total other expense, net		(4,650)	(12,803)
Loss from continuing operations		(34,601)	(24,725)
Loss from discontinued operations, net of tax		0	0
Net loss		(34,601)	(24,725)
Oil
Revenue
Operating revenue		40,278	86,363
Natural gas
Revenue
Operating revenue		5,210	18,450
Natural gas liquids
Revenue
Operating revenue		4,714	11,216
Other
Revenue
Operating revenue		$ 555	$ 568
Predecessor
Revenue
Operating revenue	$ 40,136
Gain on sale of assets	840
Gain (loss) on derivatives	6,663
Total revenue	47,639
Operating expenses
Lease operating	4,408
Transportation and marketing	3,725
Production taxes	953
Workovers	423
Exploration	7,003
Depreciation, depletion and amortization	11,670
General and administrative	21,234
Total operating expenses	49,416
Operating income	(1,777)
Other income (expense)
Interest expense	(5,511)
Interest income and other	172
Total other expense, net	(5,339)
Loss from continuing operations	(7,116)
Loss from discontinued operations, net of tax	(7,746)
Net loss	(14,862)
Predecessor | Oil
Revenue
Operating revenue	30,972
Predecessor | Natural gas
Revenue
Operating revenue	4,276
Predecessor | Natural gas liquids
Revenue
Operating revenue	4,000
Predecessor | Other
Revenue
Operating revenue	$ 888

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Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Current assets
Cash and cash equivalents	$ 27,045	$ 12,984
Restricted cash	798	1,001
Accounts receivable, net	65,403	68,370
Other receivables	2,239	6,267
Related party receivables, net	17,126	24,282
Notes receivable from related party, net	0	0
Prepaid expenses and other current assets	4,549	747
Derivatives	0	16,423
Total current assets	117,160	130,074
Property and equipment
Oil and gas properties, successful efforts method, net	777,750	763,337
Other property and equipment, net	38,099	38,147
Total property and equipment, net	815,849	801,484
Other assets
Operating lease right-of-use assets, net	14,758
Deferred financing costs, net	1,115	1,151
Deposits and other long-term assets	48	63
Derivatives	461	2,947
Total other assets	16,382	4,161
Total assets	949,391	935,719
Current liabilities
Accounts payable and accrued liabilities	108,666	197,064
Accounts payable - related party	481	3,425
Advances from non-operators	2,367	5,193
Advances from related party	4,479	9,822
Asset retirement obligations	48	2,079
Current operating lease liability	895
Derivatives	5,057	1,710
Total current liabilities	121,993	219,293
Long-term liabilities
Asset retirement obligations, net of current portion	11,750	9,330
Long-term debt, net	805,892	690,123
Operating lease liabilities, net of current portion	13,962
Derivatives	2,065	180
Total long-term liabilities	833,669	699,633
Total liabilities	955,662	918,926
Commitments and contingencies (Note 13)
Partners’ capital	(6,271)	16,793
Total liabilities and partners’ capital	$ 949,391	$ 935,719

XML

Condensed Consolidated Statements Of Changes In Partners' Capital (Unaudited) $ in Thousands	USD ($)
BALANCE, BEGINNING (Predecessor) at Dec. 31, 2017	$ 154,445
Distribution of non-STACK oil and gas assets, net of associated liabilities, and Contributions | Predecessor	43,482
Net loss | Predecessor	(14,862)
BALANCE, ENDING (Predecessor) at Feb. 08, 2018	183,065
BALANCE, ENDING at Feb. 08, 2018	1,535,891
Distribution of non-STACK oil and gas assets, net of associated liabilities, and Contributions	560,344
Equity-based compensation expense	2,768
Net loss	(34,601)
BALANCE, ENDING at Mar. 31, 2018	2,064,402
BALANCE, BEGINNING at Dec. 31, 2018	16,793
Equity-based compensation expense	1,661
Net loss	(24,725)
BALANCE, ENDING at Mar. 31, 2019	$ (6,271)

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Condensed Consolidated Statements Of Cash Flows (Unaudited) - USD ($) $ in Thousands	1 Months Ended	2 Months Ended	3 Months Ended
	Feb. 08, 2018	Mar. 31, 2018	Mar. 31, 2019
Cash flows from operating activities:
Net loss		$ (34,601)	$ (24,725)
Adjustments to reconcile net loss to cash from operating activities:
Depreciation, depletion, amortization and ARO accretion		11,038	34,675
Non-cash lease expense	$ 0	0	99
Provision for uncollectible related party receivables		0	853
Impairments		0	0
Amortization of deferred financing costs		0	45
Amortization of debt premium discount		(820)	(1,231)
Equity-based compensation expense		2,768	1,661
Expired leases		4,189	162
(Gain) Loss on derivatives		22,011	23,777
Cash settlements of derivatives		(3,975)	365
Interest converted into debt		0	0
Interest added to notes receivable from affiliate		(162)	0
Loss on sale of fixed assets		0	0
Impact on cash from changes in:
Accounts receivable		3,097	2,968
Other receivables		1,427	4,029
Receivables from affiliate and related party		(7,880)	6,303
Prepaid expenses and other non-current assets		(2,240)	(3,787)
Advances from related party		(7,008)	(5,344)
Settlement of asset retirement obligations		(166)	(147)
Accounts payable to related party		(1,824)	(2,944)
Accounts payable, accrued liabilities and other liabilities		(35,165)	(6,824)
Cash from operating activities		(49,311)	29,935
Cash flows from investing activities:
Capital expenditures		(129,310)	(133,077)
Acquisitions, net of cash acquired		0	0
Cash from investing activities		(129,310)	(133,077)
Cash flows from financing activities:
Proceeds from long-term debt borrowings		0	117,000
Repayments of long-term debt		(134,065)	0
Deferred financing costs paid		(1,007)	0
Capital distributions		0	0
Capital contributions		560,344	0
Cash from financing activities		425,272	117,000
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect		246,651	13,858
Cash, cash equivalents and restricted cash, beginning of period		10,345	13,985
Cash, cash equivalents and restricted cash, end of period	10,345	256,996	$ 27,843
Predecessor
Cash flows from operating activities:
Net loss	(14,862)
Adjustments to reconcile net loss to cash from operating activities:
Depreciation, depletion, amortization and ARO accretion	12,554
Provision for uncollectible related party receivables	0
Impairments	5,560
Amortization of deferred financing costs	171
Amortization of debt premium discount	0
Equity-based compensation expense	0
Expired leases	4,575
(Gain) Loss on derivatives	(6,663)
Cash settlements of derivatives	(2,296)
Interest converted into debt	103
Interest added to notes receivable from affiliate	(85)
Loss on sale of fixed assets	1,923
Impact on cash from changes in:
Accounts receivable	(21,184)
Other receivables	(662)
Receivables from affiliate and related party	(117)
Prepaid expenses and other non-current assets	(591)
Advances from related party	24,116
Settlement of asset retirement obligations	(63)
Accounts payable to related party	0
Accounts payable, accrued liabilities and other liabilities	23,857
Cash from operating activities	26,336
Cash flows from investing activities:
Capital expenditures	(36,695)
Acquisitions, net of cash acquired	(1,218)
Cash from investing activities	(37,913)
Cash flows from financing activities:
Proceeds from long-term debt borrowings	60,000
Repayments of long-term debt	(43,000)
Deferred financing costs paid	0
Capital distributions	(68)
Capital contributions	0
Cash from financing activities	16,932
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect	5,355
Cash, cash equivalents and restricted cash, beginning of period	4,990	$ 10,345
Cash, cash equivalents and restricted cash, end of period	$ 10,345

XML

Description of Business

3 Months Ended

Mar. 31, 2019

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Description of Business

DESCRIPTION OF BUSINESS

Alta Mesa Holdings, LP (“Alta Mesa” or “the Company”) is an exploration and production company focused on the acquisition, development, exploration and exploitation of unconventional onshore oil and natural gas reserves in the eastern portion of the Anadarko Basin in Oklahoma commonly referred to as the Sooner Trend Anadarko Basin Canadian and Kingfisher County (“STACK”). Our operations prior to February 9, 2018, also included other oil and natural gas interests in Texas, Idaho, Louisiana and Florida. In connection with our acquisition by Alta Mesa Resources, Inc. (“AMR”), on February 9, 2018 (“the Business Combination”), we distributed the non-STACK oil and gas assets and liabilities to our prior owner, High Mesa Holdings, LP (“High Mesa”), and completed our transition from a diversified asset base composed of a portfolio of conventional assets to an oil and liquids-rich resource unconventional play in the STACK.  Prior to the closing of the Business Combination, we were controlled by High Mesa Inc. (“HMI”).

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Summary Of Significant Accounting Policies

3 Months Ended

Mar. 31, 2019

Accounting Policies [Abstract]

Summary Of Significant Accounting Policies

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Basis of Presentation

All intercompany transactions and accounts have been eliminated. These interim condensed consolidated financial statements are unaudited, but we believe these statements reflect all adjustments necessary for a fair presentation for the periods reported. All such adjustments are of a normal, recurring nature unless otherwise disclosed. These financial statements and disclosures have been prepared in accordance with the SEC’s rules for interim financial statements and do not include all the information and disclosures required by generally accepted accounting principles (“GAAP”) for complete financial statements. These financial statements should be read in conjunction with the audited consolidated financial statements and notes thereto included in our 2018 10-K. The results for the three months ended March 31, 2019, are not necessarily indicative of the results to be expected for the full year. We have no items of other comprehensive income during any period presented. 

Recently Issued Accounting Standards Applicable to Us

Adopted

Effective January 1, 2019, we adopted ASU No. 2016-02, Leases (Topic 842) (“ASU 2016-02”), which requires that lessees recognize a lease liability, which is a lessee’s discounted obligation to make payments under a lease and a right-of-use asset, arising from a lessee’s right to use an asset over the lease term. Upon adoption, we used the modified retrospective method to apply the standard as of January 1, 2019 for existing leases with terms in excess of 12 months entered into prior to January 1, 2019.

Not Yet Adopted

In June 2016, the FASB issued ASU No. 2016-13, Financial Instruments - Credit Losses(Topic 326): Measurement of Credit Losses on Financial Instruments. This standard requires the use of a new “expected credit loss” impairment model rather than the “incurred loss” model we use today. With respect to our trade and notes receivables and certain other financial instruments, we may be required to (i) maintain and use lifetime loss information rather than annual loss data and (ii) forecast future economic conditions and quantify the effect of those conditions on future expected losses. The standard, including related amendments, which will be effective for us on January 1, 2020, also requires additional disclosures regarding the credit quality of our trade and notes receivables and other financial instruments. No determination has yet been made of the impact of this new standard on our financial position or results of operations.

In August 2018, the FASB issued ASU No. 2018-15, Intangibles - Goodwill and Other - Internal-Use Software (Topic 350-40): Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract (“ASU 2018-15”). The amendments in this standard align the requirements for capitalizing implementation costs incurred in a hosting arrangement that is a service contract with the requirements for capitalizing implementation costs incurred to develop or obtain internal use software (and hosting arrangements that include an internal-use software license). Under this new standard, a customer in a hosting arrangement that is a service contract is required to follow the guidance in Subtopic 350-40 to determine which implementation costs to capitalize as a prepaid asset related to the service contract and which costs to expense. The capitalized implementation costs are to be expensed over the term of the hosting arrangement and reflected in the same line in the consolidated statement of operations as the fees associated with the hosting element of the arrangement. Similarly, capitalized implementation costs are to be presented in the statement of cash flows in the same line as payments made for fees associated with the hosting element. We will adopt this new standard no later than January 1, 2020, although early adoption is permitted. We are currently evaluating the impact of this new standard on our consolidated financial position and results of operations and have not yet determined when to adopt and whether to apply the new standard retrospectively or prospectively to implementation costs incurred after the date of adoption.

In August 2018, the FASB issued ASU No. 2018-13, Fair Value Measurement (Topic 820) Disclosure Framework - Changes to the Disclosure Requirements for Fair Value Measurement (“ASU 2018-13”), which modifies the disclosure requirements of fair value measurements. ASU 2018-13 is effective for us beginning January 1, 2020. Certain disclosures are required to be applied on a retrospective basis and others on a prospective basis. We do not expect the adoption of this standard to impact our financial position or results of operations.

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Adoption of ASU No. 2016-02, Leases

3 Months Ended

Mar. 31, 2019

Leases [Abstract]

Adoption of ASU No. 2016-02, Leases

ADOPTION OF ASU NO. 2016-02, LEASES

ASU No. 2016-02 requires us to recognize a right-of-use (“ROU”) asset and a discounted lease liability on the balance sheet for all leases with a term longer than one year. We adopted ASU No. 2016-02 and related guidance using the modified retrospective method to apply the standard as January 1, 2019, and this adoption had no effect on the earlier comparative periods presented. At adoption, we recognized operating lease ROU assets of $15.0 million and operating lease liabilities of $15.0 million. There was no adjustment to retained earnings

We lease office space, office equipment and field equipment, including compressors. Many of our leases include both lease and non-lease components which are primarily management services by the lessors for the underlying assets. All of our leases of office space and office equipment, were classified as operating leases upon adoption. Our leases of field equipment had remaining terms of less than one year at the date of adoption and were not recognized as operating leases on our balance sheet due to our election of the short term lease practical expedient described below. Our leases do not contain any residual value guarantees or restrictive covenants. We do not sublease any of our ROU assets.

Operating fixed lease expenses are recognized on a straight-line basis over the lease term. Variable lease payments, which cannot be determined at the lease commencement date, are not included in ROU assets or lease liabilities and are expensed as incurred.

Upon adoption, we selected the following practical expedients:

Practical expedient package	We did not reassess whether any expired or existing contracts are, or contain, leases.
	We did not reassess the lease classification of any expired or existing leases.
	We did not reassess initial direct costs of any expired or existing leases.
Hindsight practical expedient	We did not elect to use the hindsight practical expedient which allows for the use of hindsight when determining lease term, including option periods, and impairment of operating assets.
Easement expedient	We elected to maintain the current accounting treatment of existing contracts and not reassess whether those contracts met the definition of a lease.
Combining lease and non-lease components expedient	We elected to account for lease and non-lease components as a single component.
Short-term lease expedient	We elected the short-term lease recognition exemption for all classes of underlying assets. Expense for short-term leases is recognized on a straight-line basis over the lease term. Leases with an initial term of 12 months or less and that do not include an option to purchase the underlying asset that is reasonably certain to be recognized are not recorded on the balance sheet.

As most leases do not have readily determinable implicit rates, we estimated the incremental borrowing rates for our future lease payments based on prevailing financial market conditions at the later of date of adoption or lease commencement, comparable companies and credit analysis and management judgments to determine the present values of our lease payments. We also apply the portfolio approach to account for leases with similar terms. At March 31, 2019, for our operating leases the weighted-average remaining lease terms were approximately 8.3 years and our weighted-average discount rates were 14.3%.

The following summarizes the components of our lease expense:

(in thousands)	Three Months Ended March 31, 2019
Operating lease cost	$	811
Variable lease cost	323
Short-term lease cost	2,187
Total lease cost	$	3,321

For the three months ended March 31, 2019, we recognized $2.3 million of lease costs in lease operating expense and $1.0 million in general and administrative expense.

Maturities of our operating lease liabilities were as follows as of March 31, 2019:

Fiscal year	(in thousands)
Remainder of 2019	$	2,200
2020	2,965
2021	2,942
2022	3,010
2023	2,718
Thereafter	12,647
Total lease payments	26,482
Less: imputed interest	(11,625		)
Present value of operating lease liabilities	$	14,857
Current portion of operating lease liabilities	$	895
Operating lease liabilities, net of current portion	13,962
Present value of operating lease liabilities	$	14,857

As described further in our 2018 Annual Report on Form 10-K, our minimum future contractual lease payments under ASC 840 at December 31, 2018 were $2.8 million for 2019, $2.9 million for 2020, $2.9 million for 2021, $3.1 million for 2022, $3.0 million for 2023 and $12.2 million thereafter.

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Going Concern

3 Months Ended

Mar. 31, 2019

Commitments and Contingencies Disclosure [Abstract]

Going Concern

We are required to evaluate our ability to continue as a going concern for a period of one year following the date of issuance of our financial statements. As part of that evaluation, we took into consideration the following factors:

• At March 31, 2019, our current liabilities exceeded our current assets by $4.8 million.

• We have failed to meet the timelines to provide our audited and unaudited financial information under our debt agreements.

• Our 2018 drilling program, much of which involved the drilling of additional wells in close proximity to existing wells, did not meet our expectations for production and recovery. We also experienced an increasing gas-to-oil ratio as a well’s production ages, which has contributed to a lowering of the expected economics of our properties.

• Although our well costs for our 2019 capital program have averaged less than $3.0 million per well, we still expect for our operating cash flow to be less than our capital spending for all of 2019.

• On April 1, 2019, our borrowing base was reduced to $370.0 million under the Alta Mesa RBL and we have no further capacity thereunder. There is risk that future redeterminations could reduce the borrowing base further, which would trigger rateable repayments of excess borrowings over five months. Without additional capital, we will only be able to utilize the cash on hand, which at May 31, 2019 was $93.7 million, to fund development and meet our financial obligations and may be unable to maintain our current levels of production, which could negatively impact our ability over time to service our debt and meet our other obligations. The lenders have an ability to make an optional redetermination ahead of the regular redetermination scheduled in October 2019.

• We anticipate having difficulty meeting our existing leverage covenants during the next 12 months without relief from our lenders. We may be unable to obtain covenant relief or to replace the Alta Mesa RBL with debt that would allow us to meet any attendant covenant requirements.

• We have $500.0 million of unsecured debt in the form of our 2024 Notes, with an interest payment of approximately $20.0 million due in June 2019, which could become an event of default if unpaid within the cure period. The 2024 Notes trade substantially below par value.

• The Class A common stock of our parent company, AMR, has been trading below $1.00 per share since February 22, 2019. On April 3, 2019, AMR was notified by NASDAQ that it was not in compliance with the minimum bid price requirement. Continued trading at these levels may put further pressure on the value of our parent’s common stock and limit our ability to raise additional capital in the equity markets.

The above factors raise substantial doubt about our and our parent’s ability to continue as a going concern. To address this, we have:

• retained financial advisors to assist in evaluating financial alternatives;

• engaged in discussions with the Alta Mesa RBL lenders and their advisors about obtaining covenant relief to address the future expected inability to satisfy the leverage requirement, however, we currently expect that such relief would only be available in connection with a reduction in our borrowing capacity which could further hamper our liquidity;

• considered seeking new sources of financing, however, such efforts have not reached a stage where significant terms have been agreed to;

• engaged in discussions with advisors to a group of holders of the 2024 Notes regarding potential options to address overall leverage, but have not agreed upon any significant strategy or terms; and

• had preliminary discussions with existing capital providers about making additional investments in us but such discussions have not reached a stage of being considered likely or probable of success at this time.

In light of the above, we believe substantial unresolved doubt exists regarding our ability to continue as a going concern for the next 12 months. We have continued reporting our long-term debt as noncurrent, since a conclusion regarding going concern has no effect on debt compliance.

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Supplemental Cash Flow Information

3 Months Ended

Mar. 31, 2019

Supplemental Cash Flow Information [Abstract]

Supplemental Cash Flow Information

SUPPLEMENTAL CASH FLOW INFORMATION

	Successor						Predecessor
(in thousands)	Three Months Ended March 31, 2019			February 9, 2018 Through March 31, 2018			January 1, 2018 Through February 8, 2018
Supplemental cash flow information:
Cash paid for interest	$	1,750		$	1,092		$	1,145
Non-cash investing and financing activities:
Increase in asset retirement obligations	314			421			—
Increase (decrease) in accruals or payables for capital expenditures	(84,162		)	(36,866		)	4,896
Distribution of non-STACK assets, net of liabilities	—			—			43,482

The following table summarizes cash, cash equivalents and restricted cash in the statements of cash flows:  

໿

	Successor				Predecessor
(in thousands)	March 31, 2019		March 31, 2018		February 8, 2018
Cash and cash equivalents	$	27,045	$	255,701	$	9,070
Restricted cash	798		1,295		1,275
Total cash, cash equivalents and restricted cash	$	27,843	$	256,996	$	10,345

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Receivables

3 Months Ended

Mar. 31, 2019

Receivables [Abstract]

Receivables

RECEIVABLES

Accounts Receivable

(in thousands)	March 31, 2019			December 31, 2018
Production sales	$	32,332		$	31,532
Joint interest billings	18,224			18,147
Pooling interest (1)	14,960			18,786
Allowance for doubtful accounts	(113		)	(95		)
Total accounts receivable, net	$	65,403		$	68,370

_________________

(1) Pooling interest relates to Oklahoma’s forced pooling process which permits mineral interest owners the option to participate in the drilling of proposed wells.  The pooling interest listed above represents unbilled costs for wells where the option remains pending.  Depending upon the mineral owner’s decision, these costs will be billed to them or added to oil and gas properties.

Related Party Receivables

(in thousands)	March 31, 2019			December 31, 2018
Related party receivables	$	27,013		$	33,316
Allowance for doubtful accounts	(9,887		)	(9,034		)
Related party receivables, net	17,126			24,282
Notes receivable from related parties	13,403			13,403
Allowance for doubtful accounts	(13,403		)	(13,403		)
Notes receivable from related parties, net	—			—
Total related party receivables, net	$	17,126		$	24,282

KFM Receivables

We have entered into a Crude Oil Gathering Agreement and a Gas Gathering and Processing Agreement with KFM. During the three months ended March 31, 2019, the period February 9, 2018 through March 31, 2018, and the Predecessor Period January 1, 2018 through February 8, 2018, we incurred $15.2 million, $4.6 million, and $3.1 million, respectively, in transportation and marketing expenses related to these agreements. Additionally, related party receivables from KFM for the marketing of our processed natural gas and NGLs were $2.3 million and $7.8 million at March 31, 2019 and December 31, 2018, respectively.

In addition, we sold a produced water disposal system to KFM during the fourth quarter of 2018. As of March 31, 2019 and December 31, 2018, related party receivables included $9.1 million and $8.7 million, respectively, attributable to a purchase price adjustment due from KFM. We collected these amounts during June 2019.

We incur general and administrative costs that may be partially or fully allocable to KFM. These costs are either allocated monthly or charged directly to KFM but are cash settled in arrears. As of March 31, 2019 and December 31, 2018, respectively, we have receivables from KFM for such costs totaling $1.9 million and $3.4 million, respectively.

AMR Receivables

We incur general and administrative costs that may be partially or fully allocable to AMR. These costs are either allocated monthly or charged directly to AMR but are cash settled in arrears. As of March 31, 2019 and December 31, 2018, respectively, we have receivables from AMR for such costs totaling $3.8 million and $3.3 million, respectively.

Management Services Agreement with High Mesa

Just prior to the Business Combination, we distributed the non-STACK oil and gas assets to High Mesa. High Mesa and certain of its subsidiaries agreed to indemnify and hold us harmless from any liabilities associated with those non-STACK oil and gas assets, regardless of when those liabilities arose. We also entered into a management services agreement (the “High Mesa Agreement”) with HMI with respect to the non-STACK assets. Under the High Mesa Agreement, during the 180-day period following the Closing (the “Initial Term”), we agreed to provide certain administrative, management and operational services necessary to manage the business of HMI and its subsidiaries (the “Services”). Thereafter, the High Mesa Agreement automatically renewed for additional consecutive 180-day periods (each a “Renewal Term”), unless terminated by either party upon at least 90-days written notice to the other party prior to the end of the Initial Term or any Renewal Term. As compensation for the Services, HMI agreed to pay us each month (i) a management fee of $10,000 and (ii) an amount equal to any and all costs and expenses incurred in connection with providing the Services.

Although the automatic renewal of this agreement occurred in the third quarter of 2018, the parties subsequently reached agreement to terminate the High Mesa Agreement, effective January 31, 2019. Through April 1, 2019, we were obligated to take all actions that HMI reasonably requested to effect the transition of the Services from us to a successor service provider. During the transition period, HMI agreed to pay us (i) for all Services performed, (ii) an amount equal to our costs and expenses incurred in connection with providing the Services as provided for in the approved budget and (iii) an amount equal to our costs and expenses reimbursable pursuant to the High Mesa Agreement. As of March 31, 2019, and December 31, 2018, approximately $9.9 million and $10.1 million, respectively, were due from HMI for reimbursement of costs and expenses which are recorded as “Related party receivables, net” in the balance sheets. HMI has disputed certain of the amounts we billed. There is no guarantee that HMI will pay the amounts it owes. In addition, our ability to collect these amounts or future amounts that may become due pursuant to indemnification obligations may be adversely impacted by liquidity and solvency issues at HMI. As a result of these circumstances, we have recognized an allowance for uncollectible accounts of $9.9 million and $9.0 million as of March 31, 2019 and December 31, 2018, respectively, to fully provide for the unremitted balances. We may also be subject to future contingent liabilities for the non-STACK assets for which we should have been indemnified, including liabilities associated with litigation relating to the non-STACK assets. As of March 31, 2019 and December 31, 2018, we have established no liabilities for contingent obligations associated with non-STACK assets owned by High Mesa. In addition, we sold a produced water disposal system to KFM during the fourth quarter of 2018. As of March 31, 2019 and December 31, 2018, related party receivables included $9.1 million attributable to the final purchase price adjustment due from KFM. This amount was collected during June 2019.

As of March 31, 2019 and December 31, 2018, the Company had $3.8 million and $3.3 million in related party receivables due from AMR for expenses we paid on their behalf.

Promissory notes receivable

In September, 2017, we entered into a $1.5 million promissory note receivable with our affiliate, Northwest Gas Processing, LLC, whose obligation was subsequently transferred to High Mesa Services, LLC (“HMS”), a subsidiary of HMI.  The promissory note bore interest, which could be paid-in-kind and added to the principal amount at a rate of 8% per annum, and matured in February 2019.  HMS defaulted under the terms of that promissory note when it was not paid when due on February 28, 2019, and HMS has failed to cure such default. We subsequently declared all amounts owed under the note immediately due and payable and we have fully reserved the promissory note balance, including interest paid-in-kind, due of $1.7 million as of March 31, 2019 and December 31, 2018.

In addition, we have an $8.5 million note receivable from HMS which matures on December 31, 2019, and bears interest at 8% per annum, which may be paid-in-kind and added to the principal amount.  HMI disputes its obligations under the $8.5 million note. As of March 31, 2019, and December 31, 2018, the note receivable balance, including interest paid-in-kind, amounted to $11.7 million, for each respective period. This balance was fully reserved at the end of both periods.

We oppose HMI’s claims and believe HMI’s obligations under the notes to be valid assets and that the full amount is payable to us. We intend to pursue all available remedies under both promissory notes and under applicable law in connection with repayment of the promissory notes. As a result of the potential conflict of interest from certain of AMR’s directors who are also controlling holders of HMI, AMR’s disinterested directors will address any potential conflicts of interest with respect to this matter.

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Property And Equipment

3 Months Ended

Mar. 31, 2019

Property, Plant and Equipment [Abstract]

Property And Equipment

PROPERTY AND EQUIPMENT

(in thousands)	March 31, 2019			December 31, 2018
Oil and gas properties
Unproved properties	$	811,804		$	816,282
Accumulated impairment of unproved properties	(742,065		)	(742,065		)
Unproved properties, net	69,739			74,217
Proved oil and gas properties	2,163,279			2,110,346
Accumulated depletion and impairment	(1,455,268		)	(1,421,226		)
Proved oil and gas properties, net	708,011			689,120
Total oil and gas properties, net	777,750			763,337
Other property and equipment
Land	5,059			5,059
Fresh water wells	27,742			27,366
Produced water disposal system	3,590			3,608
Office furniture, equipment and vehicles	2,842			2,840
Accumulated depreciation	(1,134		)	(726		)
Other property and equipment, net	38,099			38,147
Total property and equipment, net	$	815,849		$	801,484

Depletion and Depreciation Expense

	Successor				Predecessor
(in thousands)	Three Months Ended March 31, 2019		February 9, 2018 Through March 31, 2018		January 1, 2018 Through February 8, 2018
Oil and gas properties depletion	$	34,042	$	10,773	$	11,021
Other property and equipment depreciation	408		163		609
Total depletion and depreciation	$	34,450	$	10,936	$	11,630

Impairment

During the three months ended March 31, 2019, we evaluated the qualitative market conditions and other factors impacting our business and concluded that there were no indicators of impairment. Therefore, we did not conduct further analysis on the recognition of additional impairment.

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Discontinued Operations

3 Months Ended

Mar. 31, 2019

Discontinued Operations and Disposal Groups [Abstract]

Discontinued Operations

DISCONTINUED OPERATIONS (Predecessor)

Alta Mesa distributed the non-STACK oil and gas assets and related liabilities to High Mesa immediately prior to the Business Combination. This distribution, including the results of operations of these assets and liabilities, is presented as discontinued operations during the Predecessor Period.

Prior to the Business Combination, we had notes payable to our founder (“Founder Notes”) that bore simple interest at 10%.  The Founder Notes were converted into an equity interest in High Mesa immediately prior to the Business Combination as they were considered part of the non-STACK distribution.  The balance of the Founder Notes at the time of conversion was approximately $28.3 million, including accrued interest.  Predecessor Period interest on the Founder Notes was $0.1 million.

	Predecessor
(in thousands)	January 1, 2018 Through February 8, 2018
Revenue
Oil	$	1,617
Natural gas	1,023
Natural gas liquids	236
Other	16
Operating revenue	2,892
Loss on sale of assets	(1,923		)
Total revenue	969
Operating expenses
Lease operating	1,770
Transportation and marketing	83
Production taxes	167
Workovers	127
Depreciation, depletion and amortization	884
Impairment of assets	5,560
General and administrative	21
Total operating expenses	8,612
Other expense
Interest expense	(103		)
Total other expense	(103		)
Loss from discontinued operations, net of tax	$	(7,746	)

	Predecessor
(in thousands)	January 1, 2018 Through February 8, 2018
Total operating cash flows of discontinued operations	$	2,974
Total investing cash flows of discontinued operations	(601		)

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Derivatives

3 Months Ended

Mar. 31, 2019

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Derivatives

DERIVATIVES

We have entered into derivatives to reduce our exposure to price risk associated with our production. From time to time, we may enter into interest rate swap agreements to mitigate the risk of changes in interest rates, but as of March 31, 2019, we have none. We do not designate any of our derivatives as hedges under GAAP.

The following summarizes the fair value and classification of our derivatives:

	March 31, 2019
Balance sheet location	Gross fair value of assets		Gross liabilities offset against assets in the Balance Sheet			Net fair value of assets presented in the Balance Sheet
	(in thousands)
Derivatives, current assets	$	6,525	$	(6,525	)	$	—
Derivatives, long-term assets	8,182		(7,721		)	461
Total	$	14,707	$	(14,246	)	$	461

Balance sheet location	Gross fair value of liabilities		Gross assets offset against liabilities in the Balance Sheet			Net fair value of liabilities presented in the Balance Sheet
	(in thousands)
Derivatives, current liabilities	$	11,582	$	(6,525	)	$	5,057
Derivatives, long-term liabilities	9,786		(7,721		)	2,065
Total	$	21,368	$	(14,246	)	$	7,122

	December 31, 2018
Balance sheet location	Gross fair value of assets		Gross liabilities offset against assets in the Balance Sheet			Net fair value of assets presented in the Balance Sheet
	(in thousands)
Derivatives, current assets	$	22,512	$	(6,089	)	$	16,423
Derivatives, long-term assets	7,910		(4,963		)	2,947
Total	$	30,422	$	(11,052	)	$	19,370

Balance sheet location	Gross fair value of liabilities		Gross assets offset against liabilities in the Balance Sheet			Net fair value of liabilities presented in the Balance Sheet
	(in thousands)
Derivatives, current liabilities	$	7,799	$	(6,089	)	$	1,710
Derivatives, long-term liabilities	5,143		(4,963		)	180
Total	$	12,942	$	(11,052	)	$	1,890

The following table summarizes the effect of our derivatives in the consolidated statements of operations (in thousands):

	Successor						Predecessor
Derivatives not designated as hedges	Three Months Ended March 31, 2019			February 9, 2018 Through March 31, 2018			January 1, 2018 Through February 8, 2018
Gain (loss) on derivatives -
Oil	$	(21,669	)	$	(21,944	)	$	4,796
Natural gas	(2,108		)	(67		)	1,867
Total gain (loss) on derivatives	$	(23,777	)	$	(22,011	)	$	6,663

Other receivables at March 31, 2019 and December 31, 2018 include $0.4 million and $1.3 million, respectively, of derivative positions scheduled to be settled in the next month.

We periodically monitor the creditworthiness of our counterparties. Although our counterparties provide no collateral, the agreements with each counterparty allow us to set-off unpaid amounts against the outstanding balance under the Alta Mesa RBL.

We had the following call and put derivatives at March 31, 2019:

OIL

	Volume	Weighted		Range
Settlement Period and Type of Contract	in bbls	Average		High		Low
2019
Price Swap Contracts	137,500	$	63.03	$	63.03	$	63.03
Collar Contracts
Short Call Options	2,035,000	66.31		75.20		56.50
Long Put Options	2,172,500	53.80		62.00		50.00
Short Put Options	2,172,500	42.72		52.00		37.50
2020
Collar Contracts
Short Call Options	1,017,600	63.95		73.80		59.55
Long Put Options	1,566,600	56.81		62.50		50.00
Short Put Options	1,566,600	42.81		50.00		37.50
2021
Collar Contracts
Short Call Options	279,750	63.51		63.75		63.35
Long Put Options	279,750	55.00		55.00		55.00
Short Put Options	279,750	43.00		43.00		43.00

GAS

	Volume in	Weighted			Range
Settlement Period and Type of Contract	MMBtu	Average			High			Low
2019
Price Swap Contracts	11,030,000	$	2.67		$	2.72		$	2.64
Basis Swap Contracts	16,050,000	(0.73		)	(0.49		)	(0.93		)
Collar Contracts
Short Call Options	1,525,000	3.19			3.20			3.17
Long Put Options	1,525,000	2.70			2.70			2.70
Short Put Options	1,525,000	2.20			2.20			2.20
2020
Price Swap Contracts	1,284,000	2.54			2.54			2.54
Basis Swap Contracts	910,000	(0.49		)	(0.49		)	(0.50		)
Collar Contracts
Short Call Options	3,874,500	3.19			3.69			2.77
Long Put Options	10,749,500	2.59			3.00			2.50
Short Put Options	9,696,000	2.10			2.50			2.00
2021
Collar Contracts
Short Call Options	540,000	3.25			3.25			3.25
Long Put Options	2,790,000	2.62			2.65			2.50
Short Put Options	2,250,000	2.15			2.15			2.15

In those instances where contracts are identical as to time period, counterparty, volume and strike price, but opposite as to direction (long and short), the volumes and average prices have been netted in the two tables above.  Prices stated in the table above for oil may settle against either the NYMEX index or may reflect a mix of positions settling on various combinations of these benchmarks.

We had the following basis swaps at March 31, 2019:

Total Gas Volumes in MMBtu(1) over Remaining Term	Reference Price 1 (1)	Reference Price 2 (1)	Period			Weighted Average Spread ($ per MMBtu)
460,000	OneOK	NYMEX Henry Hub	Jul '19	—	Dec '19	$	(0.93	)
13,450,000	Tex/OKL Panhandle Eastern Pipeline	NYMEX Henry Hub	Jan '19	—	Dec '19	(0.70		)
910,000	Tex/OKL Panhandle Eastern Pipeline	NYMEX Henry Hub	Jan '20	—	Mar '20	(0.49		)
2,140,000	San Juan	NYMEX Henry Hub	Jan '19	—	Oct '19	(0.81		)

________________

(1) Represents short swaps that fix the basis differentials between OneOK, Tex/OKL Panhandle Eastern Pipeline (“PEPL”), San Juan and NYMEX Henry Hub.

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Accounts Payable And Accrued Liabilities

3 Months Ended

Mar. 31, 2019

Payables and Accruals [Abstract]

Accounts Payable And Accrued Liabilities

ACCOUNTS PAYABLE AND ACCRUED LIABILITIES 

໿

(in thousands)	March 31, 2019		December 31, 2018
Accounts payable	$	8,502	$	20,200
Accruals for capital expenditures	25,964		101,214
Revenue and royalties payable	40,365		46,870
Accruals for operating expenses	8,910		16,355
Accrued interest	13,754		1,784
Derivative settlements	49		109
Other	11,122		10,532
Total accrued liabilities	100,164		176,864
Accounts payable and accrued liabilities	$	108,666	$	197,064

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Asset Retirement Obligations

3 Months Ended

Mar. 31, 2019

Asset Retirement Obligation Disclosure [Abstract]

Asset Retirement Obligations

ASSET RETIREMENT OBLIGATIONS 

	Successor						Predecessor
(in thousands)	Three Months Ended March 31, 2019			February 9, 2018 Through March 31, 2018			January 1, 2018 Through February 8, 2018
Balance, beginning of period	$	11,409		$	—		$	10,469
Liabilities assumed in Business Combination	—			5,998			—
Liabilities incurred	315			421			—
Liabilities settled	(147		)	(166		)	(63		)
Revisions to estimates	(4)			300			63
Accretion expense	225			102			39
Balance, end of period	11,798			6,655			10,508
Less: Current portion	48			622			33
Long-term portion	$	11,750		$	6,033		$	10,475

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Long Term Debt, Net

3 Months Ended

Mar. 31, 2019

Debt Disclosure [Abstract]

Long Term Debt, Net And Notes Payable To Founder

LONG TERM DEBT, NET

໿

(in thousands)	March 31, 2019		December 31, 2018
Alta Mesa RBL	$	278,000	$	161,000
2024 Notes	500,000		500,000
Unamortized premium on 2024 notes	27,892		29,123
Total long-term debt, net	$	805,892	$	690,123

Alta Mesa RBL

The Alta Mesa RBL has two covenants that are tested quarterly:

• a ratio of our current assets to current liabilities, inclusive of specified adjustments, of not less than 1.0 to 1.0; and

• a ratio of our consolidated debt to our consolidated Adjusted EBITDAX (the “leverage ratio”) of not greater than 4.0 to 1.0. For the first 3 measurement periods following the Business Combination we were able to annualize cumulative Successor Period results in measuring Adjusted EBITDAX. 

During 2019, and possibly as soon as June 30, 2019, we may be unable to satisfy the leverage ratio. Also, we recognize the need to obtain covenant relief or to replace the Alta Mesa RBL with debt that would allow us to meet any attendant covenant requirements.

2024 Notes

In connection with the Business Combination, we recorded the fair value of our $500.0 million unsecured senior notes at $533.6 million as of the acquisition date. We have estimated the fair value of our senior notes to be $194.9 million at March 31, 2019.  This estimation was based on the most recent trading values of the senior notes at or near the reporting date, which is a Level 1 determination.

Maturities of Long-Term Debt

Fiscal year	(in thousands)
2019	$	—
2020	—
2021	—
2022	—
2023	278,000
Thereafter	500,000
	$	778,000

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Commitments And Contingencies

3 Months Ended

Mar. 31, 2019

Commitments and Contingencies Disclosure [Abstract]

Commitments And Contingencies

COMMITMENTS AND CONTINGENCIES 

There have been no material developments during the first quarter of 2019 in relation to our commitments and contingencies as compared to our discussion of those matters in our Annual Report on Form 10-K for the year ended December 31, 2018.

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Significant Concentrations

3 Months Ended

Mar. 31, 2019

Significant Concentrations [Abstract]

Significant Concentrations

SIGNIFICANT CONCENTRATIONS 

During the first quarter of 2019 and throughout 2018, ARM Energy Management, LLC (“ARM”) marketed our oil, gas and NGLs. The sales are generally made under short-term contracts with month-to-month pricing based on published regional indices, adjusted for transportation, location and quality. During January and February 2019 and for all of 2018, ARM collected payments from purchasers, deducted their marketing fee and remitted the balance to us. In March 2019, in preparation for the return of oil and NGL marketing responsibilities to us, we began receiving payments for the sale of oil and NGLs directly from purchasers and separately paying the marketing fee owed to ARM.

Effective as of June 1, 2019, we have terminated our oil and NGL marketing agreement with ARM and will market such products internally. We have extended the term of our gas marketing agreement with ARM through November 30, 2019. With respect to gas sales, ARM continues to collect payments from purchasers, deducts their marketing fee and remits the balance to us.

Our affiliate, Kingfisher Midstream, LLC (“KFM”) is responsible for marketing our firm transportation on the ONEOK Gas Transmission, L.L.C. system, which is indirectly marketed by ARM through an asset management agreement with KFM for a management fee.

ARM also provides us with strategic advice, execution and reporting services with respect to our derivatives activities.

	Successor				Predecessor
(in thousands)	Three Months Ended March 31, 2019		February 9, 2018 Through March 31, 2018		January 1, 2018 Through February 8, 2018
Revenue marketed by ARM on our behalf	$	83,831	$	37,343	$	28,757
Marketing and management fees paid to ARM	$	661	$	—	$	—
Fees paid to ARM for services relating to our derivatives	193		74		66
Total fees paid to ARM	$	854	$	74	$	66

Receivables from ARM for sales on our behalf were $3.8 million and $38.4 million as of March 31, 2019 and December 31, 2018, respectively, which are reflected in accounts receivable on our balance sheets.

We believe that the loss of any of our customers, or of our marketing agent ARM, would not have a material adverse effect on us because alternative purchasers are readily available.

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Equity-Based Compensation (Successor)

3 Months Ended

Mar. 31, 2019

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Equity-Based Compensation (Successor)

EQUITY-BASED COMPENSATION (Successor)

Stock compensation expense recognized was as follows:

	Successor				Predecessor
(in thousands)	Three Months Ended March 31, 2019		February 9, 2018 Through March 31, 2018		January 1, 2018 Through February 8, 2018
Stock options	$	791	$	1,048	$	—
Restricted stock awards	862		564		—
Performance-based restricted stock units	8		1,156		—
Total compensation expense	$	1,661	$	2,768	$	—

Performance-based restricted stock units (“PSUs”) issued in 2018 generally vest over three years at 20% during the first year (“2018 tranche”), 30% during the second year (“2019 tranche”), and 50% during the third year (“2020 tranche”). The number of PSUs vesting each year are based on achievement of annual company-specific performance goals and obligations applicable to each year of vesting. Based on achievement of those goals and objectives, the number of PSUs that can vest range from 0% to 200% of the target growth applicable to each vesting period. The performance goals set for the 2018 tranche were not attained and, therefore, the 2018 tranche was forfeited as of December 31, 2018, except with respect to separations involving employment agreements whereby the separated employee was eligible to receive the award granted.

The performance targets for the 2019 tranche were established in March 2019 and 595,417 PSUs were deemed granted at that time. The fair value of the 2019 tranche granted was $0.27 per unit, which will be recognized as expense over the remainder of 2019, subject to continued employment.

No performance targets have yet been established for the 2020 tranche and therefore, no expense will be recognized for those awards until the specific targets have been established and probability of attainment can be measured.

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Related Party Transactions

3 Months Ended

Mar. 31, 2019

Related Party Transactions [Abstract]

Related Party Transactions

NOTE 16 — RELATED PARTY TRANSACTIONS 

As of December 31, 2018, we had a payable of $2.9 million to KFM for produced water disposal services provided following the sale of the produced water system to them during the fourth quarter of 2018. Beginning in 2019, these costs are utilized to reduce the amount that KFM owes us for marketing our production, which are reported in related party receivables.

As of March 31, 2019 and December 31, 2018, we had a payable to AMR of $0.5 million.

David Murrell, our Vice President of Land and Business Development, is the principal of David Murrell & Associates, which provided land consulting services to us until termination of our contract in December 2018. The primary employee of David Murrell & Associates is his spouse, Brigid Murrell. Services were provided at a pre-negotiated hourly rate based on actual time utilized by us. Total expenditures under this arrangement were approximately $36,000 and $28,000 for the period February 9, 2018 through March 31, 2018 and the Predecessor Period, respectively. These amounts are recorded in general and administrative expenses.

David McClure, AMR’s former Vice President of Facilities and Infrastructure, and the son-in-law of our former President and Chief Executive Officer, Harlan H. Chappelle, received total compensation of $768,860, $970,197 and $28,874 during the 2019 Quarter, the period February 9, 2018 through March 31, 2018 and the Predecessor Period, respectively. These amounts are included in general and administrative expense. Mr. McClure separated from the Company in February 2019.

David Pepper, Surface Land Manager for KFM, and the cousin of our Vice President of Land and Business Development, David Murrell, received total compensation of $70,180, $112,761 and $67,322 during the 2019 Quarter, the period February 9, 2018 through March 31, 2018 and the Predecessor Period, respectively. These amounts are included in general and administrative expense.

Bayou City Agreement

In January 2016, our wholly owned subsidiary Oklahoma Energy entered into a Joint Development Agreement, as amended on June 10, 2016 and December 31, 2016, (the “JDA”), with BCE, a fund advised by Bayou City, to fund a portion of our drilling operations and to allow us to accelerate development of our STACK acreage. The JDA established a development plan of 60 wells in three tranches, and provides opportunities for the parties to potentially agree to an additional 20 wells. Pursuant to the terms and provisions of the JDA, BCE committed to fund 100% of our working interest share up to a maximum average well cost of $3.2 million in drilling and completion costs per well for any tranche. We are responsible for any drilling and completion costs exceeding approved amounts. BCE may request refunds of certain advances from time to time if funded wells previously on the drilling schedule were subsequently removed. In exchange for carrying the drilling and completion costs, BCE receives 80% of our working interest in each wellbore, which BCE interest will be reduced to 20% of our initial working interest upon BCE achieving a 15% internal rate of return on the wells within a tranche and automatically further reduced to 12.5% of our initial interest upon BCE achieving a 25% internal rate of return on each individual tranche. Following the completion of each joint well, we and BCE will each bear our respective proportionate working interest share of all subsequent costs and expenses related to such joint well.  Mr. William McMullen, one of our directors, is founder and managing partner of BCE. The approximate dollar value of the amount involved in this transaction, or Mr. McMullen’s interests in the transaction, depends on a number of factors outside his control and is not known at this time.  During the period February 9, 2018 through March 31, 2018, BCE advanced us approximately $39.5 million to drill wells under the JDA. As of March 31, 2019, 61 joint wells have been drilled or spudded. At March 31, 2019 and December 31, 2018, $4.5 million and $9.8 million, respectively of revenue and net advances remaining from BCE for their working interest share of the drilling and development costs arising under the JDA were included as “Advances from related party” in our condensed consolidated balance sheets. At March 31, 2019, there were no funded horizontal wells in progress, and we do not expect any wells to be developed in 2019 pursuant to the JDA.

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Summary Of Significant Accounting Policies (Policies)

3 Months Ended

Mar. 31, 2019

Accounting Policies [Abstract]

Recently Issued and Applicable Accounting Standards

Recently Issued Accounting Standards Applicable to Us

Adopted

Effective January 1, 2019, we adopted ASU No. 2016-02, Leases (Topic 842) (“ASU 2016-02”), which requires that lessees recognize a lease liability, which is a lessee’s discounted obligation to make payments under a lease and a right-of-use asset, arising from a lessee’s right to use an asset over the lease term. Upon adoption, we used the modified retrospective method to apply the standard as of January 1, 2019 for existing leases with terms in excess of 12 months entered into prior to January 1, 2019.

Not Yet Adopted

In June 2016, the FASB issued ASU No. 2016-13, Financial Instruments - Credit Losses(Topic 326): Measurement of Credit Losses on Financial Instruments. This standard requires the use of a new “expected credit loss” impairment model rather than the “incurred loss” model we use today. With respect to our trade and notes receivables and certain other financial instruments, we may be required to (i) maintain and use lifetime loss information rather than annual loss data and (ii) forecast future economic conditions and quantify the effect of those conditions on future expected losses. The standard, including related amendments, which will be effective for us on January 1, 2020, also requires additional disclosures regarding the credit quality of our trade and notes receivables and other financial instruments. No determination has yet been made of the impact of this new standard on our financial position or results of operations.

In August 2018, the FASB issued ASU No. 2018-15, Intangibles - Goodwill and Other - Internal-Use Software (Topic 350-40): Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract (“ASU 2018-15”). The amendments in this standard align the requirements for capitalizing implementation costs incurred in a hosting arrangement that is a service contract with the requirements for capitalizing implementation costs incurred to develop or obtain internal use software (and hosting arrangements that include an internal-use software license). Under this new standard, a customer in a hosting arrangement that is a service contract is required to follow the guidance in Subtopic 350-40 to determine which implementation costs to capitalize as a prepaid asset related to the service contract and which costs to expense. The capitalized implementation costs are to be expensed over the term of the hosting arrangement and reflected in the same line in the consolidated statement of operations as the fees associated with the hosting element of the arrangement. Similarly, capitalized implementation costs are to be presented in the statement of cash flows in the same line as payments made for fees associated with the hosting element. We will adopt this new standard no later than January 1, 2020, although early adoption is permitted. We are currently evaluating the impact of this new standard on our consolidated financial position and results of operations and have not yet determined when to adopt and whether to apply the new standard retrospectively or prospectively to implementation costs incurred after the date of adoption.

In August 2018, the FASB issued ASU No. 2018-13, Fair Value Measurement (Topic 820) Disclosure Framework - Changes to the Disclosure Requirements for Fair Value Measurement (“ASU 2018-13”), which modifies the disclosure requirements of fair value measurements. ASU 2018-13 is effective for us beginning January 1, 2020. Certain disclosures are required to be applied on a retrospective basis and others on a prospective basis. We do not expect the adoption of this standard to impact our financial position or results of operations.

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Adoption of ASU No. 2016-02, Leases (Tables)

3 Months Ended

Mar. 31, 2019

Leases [Abstract]

Schedule of Practical Expedients

Upon adoption, we selected the following practical expedients:

Practical expedient package	We did not reassess whether any expired or existing contracts are, or contain, leases.
	We did not reassess the lease classification of any expired or existing leases.
	We did not reassess initial direct costs of any expired or existing leases.
Hindsight practical expedient	We did not elect to use the hindsight practical expedient which allows for the use of hindsight when determining lease term, including option periods, and impairment of operating assets.
Easement expedient	We elected to maintain the current accounting treatment of existing contracts and not reassess whether those contracts met the definition of a lease.
Combining lease and non-lease components expedient	We elected to account for lease and non-lease components as a single component.
Short-term lease expedient	We elected the short-term lease recognition exemption for all classes of underlying assets. Expense for short-term leases is recognized on a straight-line basis over the lease term. Leases with an initial term of 12 months or less and that do not include an option to purchase the underlying asset that is reasonably certain to be recognized are not recorded on the balance sheet.

Lease Cost

The following summarizes the components of our lease expense:

(in thousands)	Three Months Ended March 31, 2019
Operating lease cost	$	811
Variable lease cost	323
Short-term lease cost	2,187
Total lease cost	$	3,321

Maturities of Operating Lease Liabilities

Maturities of our operating lease liabilities were as follows as of March 31, 2019:

Fiscal year	(in thousands)
Remainder of 2019	$	2,200
2020	2,965
2021	2,942
2022	3,010
2023	2,718
Thereafter	12,647
Total lease payments	26,482
Less: imputed interest	(11,625		)
Present value of operating lease liabilities	$	14,857
Current portion of operating lease liabilities	$	895
Operating lease liabilities, net of current portion	13,962
Present value of operating lease liabilities	$	14,857

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Supplemental Cash Flow Information (Tables)

3 Months Ended

Mar. 31, 2019

Supplemental Cash Flow Information [Abstract]

Supplemental Disclosures To The Consolidated Statements Of Cash Flows

	Successor						Predecessor
(in thousands)	Three Months Ended March 31, 2019			February 9, 2018 Through March 31, 2018			January 1, 2018 Through February 8, 2018
Supplemental cash flow information:
Cash paid for interest	$	1,750		$	1,092		$	1,145
Non-cash investing and financing activities:
Increase in asset retirement obligations	314			421			—
Increase (decrease) in accruals or payables for capital expenditures	(84,162		)	(36,866		)	4,896
Distribution of non-STACK assets, net of liabilities	—			—			43,482

Reconciliation Of Cash, Cash Equivalents And Restricted Cash

The following table summarizes cash, cash equivalents and restricted cash in the statements of cash flows:  

໿

	Successor				Predecessor
(in thousands)	March 31, 2019		March 31, 2018		February 8, 2018
Cash and cash equivalents	$	27,045	$	255,701	$	9,070
Restricted cash	798		1,295		1,275
Total cash, cash equivalents and restricted cash	$	27,843	$	256,996	$	10,345

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Receivables (Tables)

3 Months Ended

Mar. 31, 2019

Receivables [Abstract]

Schedule of Accounts Receivable

Accounts Receivable

(in thousands)	March 31, 2019			December 31, 2018
Production sales	$	32,332		$	31,532
Joint interest billings	18,224			18,147
Pooling interest (1)	14,960			18,786
Allowance for doubtful accounts	(113		)	(95		)
Total accounts receivable, net	$	65,403		$	68,370

_________________

(1) Pooling interest relates to Oklahoma’s forced pooling process which permits mineral interest owners the option to participate in the drilling of proposed wells.  The pooling interest listed above represents unbilled costs for wells where the option remains pending.  Depending upon the mineral owner’s decision, these costs will be billed to them or added to oil and gas properties.

Related Party Receivables

(in thousands)	March 31, 2019			December 31, 2018
Related party receivables	$	27,013		$	33,316
Allowance for doubtful accounts	(9,887		)	(9,034		)
Related party receivables, net	17,126			24,282
Notes receivable from related parties	13,403			13,403
Allowance for doubtful accounts	(13,403		)	(13,403		)
Notes receivable from related parties, net	—			—
Total related party receivables, net	$	17,126		$	24,282

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Property And Equipment (Tables)

3 Months Ended

Mar. 31, 2019

Property, Plant and Equipment [Abstract]

Summary Of Property And Equipment

	Successor				Predecessor
(in thousands)	Three Months Ended March 31, 2019		February 9, 2018 Through March 31, 2018		January 1, 2018 Through February 8, 2018
Oil and gas properties depletion	$	34,042	$	10,773	$	11,021
Other property and equipment depreciation	408		163		609
Total depletion and depreciation	$	34,450	$	10,936	$	11,630

(in thousands)	March 31, 2019			December 31, 2018
Oil and gas properties
Unproved properties	$	811,804		$	816,282
Accumulated impairment of unproved properties	(742,065		)	(742,065		)
Unproved properties, net	69,739			74,217
Proved oil and gas properties	2,163,279			2,110,346
Accumulated depletion and impairment	(1,455,268		)	(1,421,226		)
Proved oil and gas properties, net	708,011			689,120
Total oil and gas properties, net	777,750			763,337
Other property and equipment
Land	5,059			5,059
Fresh water wells	27,742			27,366
Produced water disposal system	3,590			3,608
Office furniture, equipment and vehicles	2,842			2,840
Accumulated depreciation	(1,134		)	(726		)
Other property and equipment, net	38,099			38,147
Total property and equipment, net	$	815,849		$	801,484

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Discontinued Operations (Tables)

3 Months Ended

Mar. 31, 2019

Disposed of by Sale

Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]

Schedule Of Discontinued Operations

	Predecessor
(in thousands)	January 1, 2018 Through February 8, 2018
Revenue
Oil	$	1,617
Natural gas	1,023
Natural gas liquids	236
Other	16
Operating revenue	2,892
Loss on sale of assets	(1,923		)
Total revenue	969
Operating expenses
Lease operating	1,770
Transportation and marketing	83
Production taxes	167
Workovers	127
Depreciation, depletion and amortization	884
Impairment of assets	5,560
General and administrative	21
Total operating expenses	8,612
Other expense
Interest expense	(103		)
Total other expense	(103		)
Loss from discontinued operations, net of tax	$	(7,746	)

	Predecessor
(in thousands)	January 1, 2018 Through February 8, 2018
Total operating cash flows of discontinued operations	$	2,974
Total investing cash flows of discontinued operations	(601		)

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Derivatives (Tables)

3 Months Ended

Mar. 31, 2019

Derivative [Line Items]

Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block]

The following summarizes the fair value and classification of our derivatives:

	March 31, 2019
Balance sheet location	Gross fair value of assets		Gross liabilities offset against assets in the Balance Sheet			Net fair value of assets presented in the Balance Sheet
	(in thousands)
Derivatives, current assets	$	6,525	$	(6,525	)	$	—
Derivatives, long-term assets	8,182		(7,721		)	461
Total	$	14,707	$	(14,246	)	$	461

Balance sheet location	Gross fair value of liabilities		Gross assets offset against liabilities in the Balance Sheet			Net fair value of liabilities presented in the Balance Sheet
	(in thousands)
Derivatives, current liabilities	$	11,582	$	(6,525	)	$	5,057
Derivatives, long-term liabilities	9,786		(7,721		)	2,065
Total	$	21,368	$	(14,246	)	$	7,122

	December 31, 2018
Balance sheet location	Gross fair value of assets		Gross liabilities offset against assets in the Balance Sheet			Net fair value of assets presented in the Balance Sheet
	(in thousands)
Derivatives, current assets	$	22,512	$	(6,089	)	$	16,423
Derivatives, long-term assets	7,910		(4,963		)	2,947
Total	$	30,422	$	(11,052	)	$	19,370

Balance sheet location	Gross fair value of liabilities		Gross assets offset against liabilities in the Balance Sheet			Net fair value of liabilities presented in the Balance Sheet
	(in thousands)
Derivatives, current liabilities	$	7,799	$	(6,089	)	$	1,710
Derivatives, long-term liabilities	5,143		(4,963		)	180
Total	$	12,942	$	(11,052	)	$	1,890

Effect Of Derivative Instruments In The Consolidated Statements Of Operations

The following table summarizes the effect of our derivatives in the consolidated statements of operations (in thousands):

	Successor						Predecessor
Derivatives not designated as hedges	Three Months Ended March 31, 2019			February 9, 2018 Through March 31, 2018			January 1, 2018 Through February 8, 2018
Gain (loss) on derivatives -
Oil	$	(21,669	)	$	(21,944	)	$	4,796
Natural gas	(2,108		)	(67		)	1,867
Total gain (loss) on derivatives	$	(23,777	)	$	(22,011	)	$	6,663

Oil Derivative Contracts

Derivative [Line Items]

Open Derivative Contracts

	Volume	Weighted		Range
Settlement Period and Type of Contract	in bbls	Average		High		Low
2019
Price Swap Contracts	137,500	$	63.03	$	63.03	$	63.03
Collar Contracts
Short Call Options	2,035,000	66.31		75.20		56.50
Long Put Options	2,172,500	53.80		62.00		50.00
Short Put Options	2,172,500	42.72		52.00		37.50
2020
Collar Contracts
Short Call Options	1,017,600	63.95		73.80		59.55
Long Put Options	1,566,600	56.81		62.50		50.00
Short Put Options	1,566,600	42.81		50.00		37.50
2021
Collar Contracts
Short Call Options	279,750	63.51		63.75		63.35
Long Put Options	279,750	55.00		55.00		55.00
Short Put Options	279,750	43.00		43.00		43.00

Natural Gas Derivative Contract

Derivative [Line Items]

Open Derivative Contracts

	Volume in	Weighted			Range
Settlement Period and Type of Contract	MMBtu	Average			High			Low
2019
Price Swap Contracts	11,030,000	$	2.67		$	2.72		$	2.64
Basis Swap Contracts	16,050,000	(0.73		)	(0.49		)	(0.93		)
Collar Contracts
Short Call Options	1,525,000	3.19			3.20			3.17
Long Put Options	1,525,000	2.70			2.70			2.70
Short Put Options	1,525,000	2.20			2.20			2.20
2020
Price Swap Contracts	1,284,000	2.54			2.54			2.54
Basis Swap Contracts	910,000	(0.49		)	(0.49		)	(0.50		)
Collar Contracts
Short Call Options	3,874,500	3.19			3.69			2.77
Long Put Options	10,749,500	2.59			3.00			2.50
Short Put Options	9,696,000	2.10			2.50			2.00
2021
Collar Contracts
Short Call Options	540,000	3.25			3.25			3.25
Long Put Options	2,790,000	2.62			2.65			2.50
Short Put Options	2,250,000	2.15			2.15			2.15

Basis Swap Derivative Contract

Derivative [Line Items]

Natural Gas Basis Swap Contracts

We had the following basis swaps at March 31, 2019:

Total Gas Volumes in MMBtu(1) over Remaining Term	Reference Price 1 (1)	Reference Price 2 (1)	Period			Weighted Average Spread ($ per MMBtu)
460,000	OneOK	NYMEX Henry Hub	Jul '19	—	Dec '19	$	(0.93	)
13,450,000	Tex/OKL Panhandle Eastern Pipeline	NYMEX Henry Hub	Jan '19	—	Dec '19	(0.70		)
910,000	Tex/OKL Panhandle Eastern Pipeline	NYMEX Henry Hub	Jan '20	—	Mar '20	(0.49		)
2,140,000	San Juan	NYMEX Henry Hub	Jan '19	—	Oct '19	(0.81		)

________________

(1) Represents short swaps that fix the basis differentials between OneOK, Tex/OKL Panhandle Eastern Pipeline (“PEPL”), San Juan and NYMEX Henry Hub.

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Accounts Payable And Accrued Liabilities (Tables)

3 Months Ended

Mar. 31, 2019

Payables and Accruals [Abstract]

Detail Of Accounts Payable And Accrued Liabilities

(in thousands)	March 31, 2019		December 31, 2018
Accounts payable	$	8,502	$	20,200
Accruals for capital expenditures	25,964		101,214
Revenue and royalties payable	40,365		46,870
Accruals for operating expenses	8,910		16,355
Accrued interest	13,754		1,784
Derivative settlements	49		109
Other	11,122		10,532
Total accrued liabilities	100,164		176,864
Accounts payable and accrued liabilities	$	108,666	$	197,064

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Asset Retirement Obligations (Tables)

3 Months Ended

Mar. 31, 2019

Asset Retirement Obligation Disclosure [Abstract]

Summary Of Changes In Asset Retirement Obligations

	Successor						Predecessor
(in thousands)	Three Months Ended March 31, 2019			February 9, 2018 Through March 31, 2018			January 1, 2018 Through February 8, 2018
Balance, beginning of period	$	11,409		$	—		$	10,469
Liabilities assumed in Business Combination	—			5,998			—
Liabilities incurred	315			421			—
Liabilities settled	(147		)	(166		)	(63		)
Revisions to estimates	(4)			300			63
Accretion expense	225			102			39
Balance, end of period	11,798			6,655			10,508
Less: Current portion	48			622			33
Long-term portion	$	11,750		$	6,033		$	10,475

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Long Term Debt, Net (Tables)

3 Months Ended

Mar. 31, 2019

Debt Disclosure [Abstract]

Long-Term Debt, Net And Notes Payable To Founder

(in thousands)	March 31, 2019		December 31, 2018
Alta Mesa RBL	$	278,000	$	161,000
2024 Notes	500,000		500,000
Unamortized premium on 2024 notes	27,892		29,123
Total long-term debt, net	$	805,892	$	690,123

Summary Of Future Maturities Of Long-Term Debt

Fiscal year	(in thousands)
2019	$	—
2020	—
2021	—
2022	—
2023	278,000
Thereafter	500,000
	$	778,000

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Significant Concentrations (Tables)

3 Months Ended

Mar. 31, 2019

Significant Concentrations [Abstract]

Schedule of Significant Concentrations

ARM also provides us with strategic advice, execution and reporting services with respect to our derivatives activities.

	Successor				Predecessor
(in thousands)	Three Months Ended March 31, 2019		February 9, 2018 Through March 31, 2018		January 1, 2018 Through February 8, 2018
Revenue marketed by ARM on our behalf	$	83,831	$	37,343	$	28,757
Marketing and management fees paid to ARM	$	661	$	—	$	—
Fees paid to ARM for services relating to our derivatives	193		74		66
Total fees paid to ARM	$	854	$	74	$	66

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Equity-Based Compensation (Successor) (Tables)

3 Months Ended

Mar. 31, 2019

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Stock compensation expense recognized

Stock compensation expense recognized was as follows:

	Successor				Predecessor
(in thousands)	Three Months Ended March 31, 2019		February 9, 2018 Through March 31, 2018		January 1, 2018 Through February 8, 2018
Stock options	$	791	$	1,048	$	—
Restricted stock awards	862		564		—
Performance-based restricted stock units	8		1,156		—
Total compensation expense	$	1,661	$	2,768	$	—

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Going Concern (Details) - USD ($)	1 Months Ended
	Jun. 30, 2019	May 31, 2019	Apr. 01, 2019	Mar. 31, 2019	Mar. 25, 2019
Line of Credit Facility [Line Items]
Current liabilities in excess of current assets				$ 4,800,000
Capital program well costs				$ 3,000,000
Unsecured debt					$ 500,000,000
Subsequent Event | Alta Mesa Credit Facility
Line of Credit Facility [Line Items]
Credit facility amount			$ 370,000,000
Cash		$ 93,700,000
Scenario, Forecast | Subsequent Event
Line of Credit Facility [Line Items]
Interest payment	$ 20,000,000
Common Class A | Parent Company
Line of Credit Facility [Line Items]
Common stock par value (in dollars per share)				$ 1.00

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Adoption of ASU No. 2016-02, Leases (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Jan. 01, 2019	Dec. 31, 2018
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Operating lease, right of use asset recognized	$ 14,758
Operating lease liability recognized	$ 14,857
Weighted-average remaining lease term (in years)	8 years 3 months 18 days
Weighted-average discount rate	14.30%
Lease cost	$ 3,321
Lease payment under ASC 840, due 2019			$ 2,800
Lease payment under ASC 840, due 2020			2,900
Lease payment under ASC 840, due 2021			2,900
Lease payment under ASC 840, due 2022			3,100
Lease payment under ASC 840, due 2023			3,000
Lease payment under ASC 840, due thereafter			$ 12,200
Lease operating expense
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Lease cost	2,300
General and administrative
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Lease cost	$ 1,000
Accounting Standards Update 2016-02
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Operating lease, right of use asset recognized		$ 15,000
Operating lease liability recognized		$ 15,000

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Adoption of ASU No. 2016-02, Leases (Components of Lease Expense) (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2019 USD ($)
Leases [Abstract]
Operating lease cost	$ 811
Variable lease cost	323
Short-term lease cost	2,187
Total lease cost	$ 3,321

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Adoption of ASU No. 2016-02, Leases (Maturities of Operating Lease Liabilities) (Details) $ in Thousands	Mar. 31, 2019 USD ($)
Leases [Abstract]
Remainder of 2019	$ 2,200
2020	2,965
2021	2,942
2022	3,010
2023	2,718
Thereafter	12,647
Total lease payments	26,482
Less: imputed interest	(11,625)
Present value of operating lease liability	14,857
Current portion of operating lease liabilities	895
Operating lease liabilities, net of current portion	13,962
Operating lease liability recognized	$ 14,857

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Supplemental Cash Flow Information (Supplemental Disclosures To The Consolidated Statements Of Cash Flows) (Details) - USD ($) $ in Thousands	1 Months Ended	2 Months Ended	3 Months Ended
	Feb. 08, 2018	Mar. 31, 2018	Mar. 31, 2019
Supplemental cash flow information:
Cash paid for interest		$ 1,092	$ 1,750
Non-cash investing and financing activities:
Increase in asset retirement obligations		421	314
Increase (decrease) in accruals or payables for capital expenditures		(36,866)	(84,162)
Distribution of non-STACK assets, net of liabilities		$ 0	$ 0
Predecessor
Supplemental cash flow information:
Cash paid for interest	$ 1,145
Non-cash investing and financing activities:
Increase in asset retirement obligations	0
Increase (decrease) in accruals or payables for capital expenditures	4,896
Distribution of non-STACK assets, net of liabilities	$ 43,482

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Supplemental Cash Flow Information (Cash and Restricted Cash) (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018	Mar. 31, 2018	Feb. 08, 2018	Dec. 31, 2017
Summary Of Significant Accounting Policies [Line Items]
Cash and cash equivalents	$ 27,045	$ 12,984	$ 255,701
Restricted cash	798		1,295
Total cash, cash equivalents and restricted cash	$ 27,843	$ 13,985	$ 256,996	$ 10,345
Predecessor
Summary Of Significant Accounting Policies [Line Items]
Cash and cash equivalents				9,070
Restricted cash				1,275
Total cash, cash equivalents and restricted cash				$ 10,345	$ 4,990

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Receivables (Schedule of Accounts Receivable) (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Receivables [Abstract]
Production sales	$ 32,332	$ 31,532
Joint interest billings	18,224	18,147
Pooling interest	14,960	18,786
Allowance for doubtful accounts	(113)	(95)
Total related party receivables, net	$ 65,403	$ 68,370

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Receivables (Schedule of Related Party Receivables) (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Receivables [Abstract]
Related party receivables	$ 27,013	$ 33,316
Allowance for doubtful accounts	(9,887)	(9,034)
Related party receivables, net	17,126	24,282
Notes receivable from related parties	13,403	13,403
Allowance for doubtful accounts	(13,403)	(13,403)
Notes receivable from related parties, net	0	0
Total related party receivables, net	$ 17,126	$ 24,282

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Receivables Receivables (Narrative) (Details) - USD ($)	1 Months Ended	2 Months Ended	3 Months Ended	12 Months Ended
	Feb. 08, 2018	Mar. 31, 2018	Mar. 31, 2019	Dec. 31, 2018	Sep. 29, 2017
Accounts, Notes, Loans and Financing Receivable [Line Items]
Notes receivable from related party, net			$ 0	$ 0
Related party receivables, net			17,126,000	24,282,000
Northwest Gas Processing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Promissory note					$ 1,500,000
Debt Instrument, Interest Rate, Stated Percentage					8.00%
Notes receivable from related party, net			1,700,000	1,700,000
Alta Mesa Resources
Accounts, Notes, Loans and Financing Receivable [Line Items]
Related party receivables			$ 3,800,000	3,300,000
High Mesa Agreement | Affiliated Entity
Accounts, Notes, Loans and Financing Receivable [Line Items]
Initial agreement term			180 days
Automatic renewal period			180 days
Notice period to terminate agreement			90 days
Management fee				10,000
Balance of note receivable			$ 9,900,000	10,100,000
Allowance for uncollectible accounts			9,900,000	9,000,000
Unamortized premium on 2024 notes | High Mesa Services LLC
Accounts, Notes, Loans and Financing Receivable [Line Items]
Balance of note receivable			$ 11,700,000	11,700,000
Debt Instrument, Interest Rate, Stated Percentage			8.00%
Related party receivables, net			$ 8,500,000
Kingfisher
Accounts, Notes, Loans and Financing Receivable [Line Items]
Transportation and marketing expense	$ 3,100,000	$ 4,600,000	15,200,000
Related party receivables			2,300,000	7,800,000
Kingfisher | Affiliated Entity
Accounts, Notes, Loans and Financing Receivable [Line Items]
Related party receivables			1,900,000	3,400,000
Kingfisher | High Mesa Agreement
Accounts, Notes, Loans and Financing Receivable [Line Items]
Related party receivables			$ 9,100,000	$ 8,700,000

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Property And Equipment (Summary Of Property And Equipment) (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Property, Plant and Equipment [Line Items]
Unproved properties	$ 811,804
Accumulated impairment of unproved properties	(742,065)
Unproved properties, net	69,739
Proved oil and gas properties	2,163,279
Accumulated depletion and impairment	(1,455,268)
Proved oil and gas properties, net	708,011
Total oil and gas properties, net	777,750	$ 763,337
Land	5,059
Fresh water wells	27,742
Produced water disposal system	3,590
Office furniture, equipment and vehicles	2,842
Accumulated depreciation	(1,134)
Other property and equipment, net	38,099	38,147
Total property and equipment, net	$ 815,849	801,484
Predecessor
Property, Plant and Equipment [Line Items]
Unproved properties		816,282
Accumulated impairment of unproved properties		(742,065)
Unproved properties, net		74,217
Proved oil and gas properties		2,110,346
Accumulated depletion and impairment		(1,421,226)
Proved oil and gas properties, net		689,120
Total oil and gas properties, net		763,337
Land		5,059
Fresh water wells		27,366
Produced water disposal system		3,608
Office furniture, equipment and vehicles		2,840
Accumulated depreciation		(726)
Other property and equipment, net		38,147
Total property and equipment, net		$ 801,484

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Property And Equipment (Depreciation and Depletion Expense) (Details) - USD ($) $ in Thousands	1 Months Ended	2 Months Ended	3 Months Ended
	Feb. 08, 2018	Mar. 31, 2018	Mar. 31, 2019
Property, Plant and Equipment [Line Items]
Oil and gas properties depletion		$ 10,773	$ 34,042
Other property and equipment depreciation		163	408
Total depletion and depreciation		$ 10,936	$ 34,450
Predecessor
Property, Plant and Equipment [Line Items]
Oil and gas properties depletion	$ 11,021
Other property and equipment depreciation	609
Total depletion and depreciation	$ 11,630

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Discontinued Operations (Narrative) (Details) - USD ($) $ in Thousands	1 Months Ended	2 Months Ended	3 Months Ended
	Feb. 08, 2018	Mar. 31, 2018	Mar. 31, 2019	Dec. 31, 2018
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Interest converted into debt		$ 0	$ 0
Predecessor
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Interest converted into debt	$ 103
Predecessor | Notes Payable To Founder
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Effective rate of interest				10.00%
Notes payable to founder				$ 28,300

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Discontinued Operations (Schedule Of Operations And Other Items Reclassified In Discontinued Operations) (Details) - USD ($) $ in Thousands	1 Months Ended	2 Months Ended	3 Months Ended
	Feb. 08, 2018	Mar. 31, 2018	Mar. 31, 2019
Operating expenses
Interest expense		$ 0	$ 0
Predecessor
Operating expenses
Interest expense	$ (103)
Predecessor | Weeks Island Field, Louisiana | Non Stack Assets [Member] | Disposed of by Sale
Revenue
Oil	1,617
Natural gas	1,023
Natural gas liquids	236
Other	16
Operating revenue	2,892
Loss on sale of assets	(1,923)
Total revenue	969
Operating expenses
Lease operating	1,770
Transportation and marketing	83
Production taxes	167
Workovers	127
Depreciation, depletion and amortization	884
Impairment of assets	5,560
General and administrative	21
Total operating expenses	8,612
Interest expense	(103)
Total other expense	(103)
Loss from discontinued operations, net of tax	$ (7,746)

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Discontinued Operations (Total Operating And Investing Cash Flows Of Discontinued Operations) (Details) - Predecessor - Weeks Island Field, Louisiana - Disposed of by Sale $ in Thousands	1 Months Ended
	Feb. 08, 2018 USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Total operating cash flows of discontinued operations	$ 2,974
Total investing cash flows of discontinued operations	$ (601)

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Derivatives (Fair Values Of Derivative Contracts) (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Derivatives, Fair Value [Line Items]
Gross fair value of assets	$ 14,707	$ 30,422
Gross liabilities offset against assets in the Balance Sheet	(14,246)	(11,052)
Net fair value of assets presented in the Balance Sheet	461	19,370
Gross fair value of liabilities	21,368	12,942
Gross assets offset against liabilities in the Balance Sheet	(14,246)	(11,052)
Net fair value of liabilities presented in the Balance Sheet	7,122	1,890
Derivatives, current assets
Derivatives, Fair Value [Line Items]
Gross fair value of assets	6,525	22,512
Gross liabilities offset against assets in the Balance Sheet	(6,525)	(6,089)
Net fair value of assets presented in the Balance Sheet	0	16,423
Derivatives, long-term assets
Derivatives, Fair Value [Line Items]
Gross fair value of assets	8,182	7,910
Gross liabilities offset against assets in the Balance Sheet	(7,721)	(4,963)
Net fair value of assets presented in the Balance Sheet	461	2,947
Derivatives, current liabilities
Derivatives, Fair Value [Line Items]
Gross fair value of liabilities	11,582	7,799
Gross assets offset against liabilities in the Balance Sheet	(6,525)	(6,089)
Net fair value of liabilities presented in the Balance Sheet	5,057	1,710
Derivatives, long-term liabilities
Derivatives, Fair Value [Line Items]
Gross fair value of liabilities	9,786	5,143
Gross assets offset against liabilities in the Balance Sheet	(7,721)	(4,963)
Net fair value of liabilities presented in the Balance Sheet	$ 2,065	$ 180

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Derivatives (Effect Of Derivative Instruments In The Consolidated Statements Of Operations) (Details) - USD ($) $ in Thousands	1 Months Ended	2 Months Ended	3 Months Ended
	Feb. 08, 2018	Mar. 31, 2018	Mar. 31, 2019
Derivative Instruments, Gain (Loss) [Line Items]
Total gains (loss) on derivative contracts		$ (22,011)	$ (23,777)
Predecessor
Derivative Instruments, Gain (Loss) [Line Items]
Total gains (loss) on derivative contracts	$ 6,663
Derivatives Not Designated As Hedging
Derivative Instruments, Gain (Loss) [Line Items]
Total gains (loss) on derivative contracts		(22,011)	(23,777)
Derivatives Not Designated As Hedging | Oil
Derivative Instruments, Gain (Loss) [Line Items]
Total gains (loss) on derivative contracts		(21,944)	(21,669)
Derivatives Not Designated As Hedging | Natural gas
Derivative Instruments, Gain (Loss) [Line Items]
Total gains (loss) on derivative contracts		$ (67)	$ (2,108)
Derivatives Not Designated As Hedging | Predecessor
Derivative Instruments, Gain (Loss) [Line Items]
Total gains (loss) on derivative contracts	6,663
Derivatives Not Designated As Hedging | Predecessor | Oil
Derivative Instruments, Gain (Loss) [Line Items]
Total gains (loss) on derivative contracts	4,796
Derivatives Not Designated As Hedging | Predecessor | Natural gas
Derivative Instruments, Gain (Loss) [Line Items]
Total gains (loss) on derivative contracts	$ 1,867

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Derivatives (Additional Information) (Details) - USD ($) $ in Millions	Mar. 31, 2019	Dec. 31, 2018
Contracts To be Settled January 2019
Derivative [Line Items]
Derivative contracts	$ 0.4	$ 1.3

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Derivatives (Oil Derivative Contracts) (Details) - Oil Derivative Contracts	3 Months Ended
	Mar. 31, 2019 $ / bbl bbl
Price Swap Contracts | 2019
Derivative [Line Items]
Volume in Bbls | bbl	137,500
Weighted Average Swap Price (USD per unit)	63.03
Price Swap Contracts | 2019 | High
Derivative [Line Items]
Swap Price (USD per unit)	63.03
Price Swap Contracts | 2019 | Low
Derivative [Line Items]
Swap Price (USD per unit)	63.03
Short Call Options | 2019
Derivative [Line Items]
Volume in Bbls | bbl	2,035,000
Weighted Average Option Price (USD per unit)	66.31
Short Call Options | 2019 | High
Derivative [Line Items]
Option Price (USD per unit)	75.20
Short Call Options | 2019 | Low
Derivative [Line Items]
Option Price (USD per unit)	56.50
Short Call Options | 2020
Derivative [Line Items]
Volume in Bbls | bbl	1,017,600
Weighted Average Option Price (USD per unit)	63.95
Short Call Options | 2020 | High
Derivative [Line Items]
Option Price (USD per unit)	73.80
Short Call Options | 2020 | Low
Derivative [Line Items]
Option Price (USD per unit)	59.55
Short Call Options | 2021
Derivative [Line Items]
Volume in Bbls | bbl	279,750
Weighted Average Option Price (USD per unit)	63.51
Short Call Options | 2021 | High
Derivative [Line Items]
Option Price (USD per unit)	63.75
Short Call Options | 2021 | Low
Derivative [Line Items]
Option Price (USD per unit)	63.35
Long Put Options | 2019
Derivative [Line Items]
Volume in Bbls | bbl	2,172,500
Weighted Average Option Price (USD per unit)	53.80
Long Put Options | 2019 | High
Derivative [Line Items]
Option Price (USD per unit)	62.00
Long Put Options | 2019 | Low
Derivative [Line Items]
Option Price (USD per unit)	50.00
Long Put Options | 2020
Derivative [Line Items]
Volume in Bbls | bbl	1,566,600
Weighted Average Option Price (USD per unit)	56.81
Long Put Options | 2020 | High
Derivative [Line Items]
Option Price (USD per unit)	62.50
Long Put Options | 2020 | Low
Derivative [Line Items]
Option Price (USD per unit)	50.00
Long Put Options | 2021
Derivative [Line Items]
Volume in Bbls | bbl	279,750
Weighted Average Option Price (USD per unit)	55.00
Long Put Options | 2021 | High
Derivative [Line Items]
Option Price (USD per unit)	55.00
Long Put Options | 2021 | Low
Derivative [Line Items]
Option Price (USD per unit)	55.00
Short Put Options | 2019
Derivative [Line Items]
Volume in Bbls | bbl	2,172,500
Weighted Average Option Price (USD per unit)	42.72
Short Put Options | 2019 | High
Derivative [Line Items]
Option Price (USD per unit)	52.00
Short Put Options | 2019 | Low
Derivative [Line Items]
Option Price (USD per unit)	37.50
Short Put Options | 2020
Derivative [Line Items]
Volume in Bbls | bbl	1,566,600
Weighted Average Option Price (USD per unit)	42.81
Short Put Options | 2020 | High
Derivative [Line Items]
Option Price (USD per unit)	50.00
Short Put Options | 2020 | Low
Derivative [Line Items]
Option Price (USD per unit)	37.50
Short Put Options | 2021
Derivative [Line Items]
Volume in Bbls | bbl	279,750
Weighted Average Option Price (USD per unit)	43.00
Short Put Options | 2021 | High
Derivative [Line Items]
Option Price (USD per unit)	43.00
Short Put Options | 2021 | Low
Derivative [Line Items]
Option Price (USD per unit)	43.00

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Derivatives (Natural Gas Derivative Contracts) (Details) - Natural Gas Derivative Contract	3 Months Ended
	Mar. 31, 2019 MMBTU $ / MMBTU
2019 | Price Swap Contracts
Derivative [Line Items]
Volume in MMbtu | MMBTU	11,030,000
Weighted Average Swap Price (USD per unit)	2.67
2019 | Price Swap Contracts | High
Derivative [Line Items]
Swap Price (USD per unit)	2.72
2019 | Price Swap Contracts | Low
Derivative [Line Items]
Swap Price (USD per unit)	2.64
2019 | Basis Swap Contracts
Derivative [Line Items]
Volume in MMbtu | MMBTU	16,050,000
Weighted Average Swap Price (USD per unit)	(0.73)
2019 | Basis Swap Contracts | High
Derivative [Line Items]
Swap Price (USD per unit)	(0.49)
2019 | Basis Swap Contracts | Low
Derivative [Line Items]
Swap Price (USD per unit)	(0.93)
2019 | Short Call Options
Derivative [Line Items]
Volume in MMbtu | MMBTU	1,525,000
Weighted Average Option Price (USD per unit)	3.19
2019 | Short Call Options | High
Derivative [Line Items]
Option Price (USD per unit)	3.20
2019 | Short Call Options | Low
Derivative [Line Items]
Option Price (USD per unit)	3.17
2019 | Long Put Options
Derivative [Line Items]
Volume in MMbtu | MMBTU	1,525,000
Weighted Average Option Price (USD per unit)	2.70
2019 | Long Put Options | High
Derivative [Line Items]
Option Price (USD per unit)	2.70
2019 | Long Put Options | Low
Derivative [Line Items]
Option Price (USD per unit)	2.70
2019 | Short Put Options
Derivative [Line Items]
Volume in MMbtu | MMBTU	1,525,000
Weighted Average Option Price (USD per unit)	2.20
2019 | Short Put Options | High
Derivative [Line Items]
Option Price (USD per unit)	2.20
2019 | Short Put Options | Low
Derivative [Line Items]
Option Price (USD per unit)	2.20
2020 | Price Swap Contracts
Derivative [Line Items]
Volume in MMbtu | MMBTU	1,284,000
Weighted Average Swap Price (USD per unit)	2.54
2020 | Price Swap Contracts | High
Derivative [Line Items]
Swap Price (USD per unit)	2.54
2020 | Price Swap Contracts | Low
Derivative [Line Items]
Swap Price (USD per unit)	2.54
2020 | Basis Swap Contracts
Derivative [Line Items]
Volume in MMbtu | MMBTU	910,000
Weighted Average Swap Price (USD per unit)	(0.49)
2020 | Basis Swap Contracts | High
Derivative [Line Items]
Swap Price (USD per unit)	(0.49)
2020 | Basis Swap Contracts | Low
Derivative [Line Items]
Swap Price (USD per unit)	(0.50)
2020 | Short Call Options
Derivative [Line Items]
Volume in MMbtu | MMBTU	3,874,500
Weighted Average Option Price (USD per unit)	3.19
2020 | Short Call Options | High
Derivative [Line Items]
Option Price (USD per unit)	3.69
2020 | Short Call Options | Low
Derivative [Line Items]
Option Price (USD per unit)	2.77
2020 | Long Put Options
Derivative [Line Items]
Volume in MMbtu | MMBTU	10,749,500
Weighted Average Option Price (USD per unit)	2.59
2020 | Long Put Options | High
Derivative [Line Items]
Option Price (USD per unit)	3.00
2020 | Long Put Options | Low
Derivative [Line Items]
Option Price (USD per unit)	2.50
2020 | Short Put Options
Derivative [Line Items]
Volume in MMbtu | MMBTU	9,696,000
Weighted Average Option Price (USD per unit)	2.10
2020 | Short Put Options | High
Derivative [Line Items]
Option Price (USD per unit)	2.50
2020 | Short Put Options | Low
Derivative [Line Items]
Option Price (USD per unit)	2.00
2021 | Short Call Options
Derivative [Line Items]
Volume in MMbtu | MMBTU	540,000
Weighted Average Option Price (USD per unit)	3.25
2021 | Short Call Options | High
Derivative [Line Items]
Option Price (USD per unit)	3.25
2021 | Short Call Options | Low
Derivative [Line Items]
Option Price (USD per unit)	3.25
2021 | Long Put Options
Derivative [Line Items]
Volume in MMbtu | MMBTU	2,790,000
Weighted Average Option Price (USD per unit)	2.62
2021 | Long Put Options | High
Derivative [Line Items]
Option Price (USD per unit)	2.65
2021 | Long Put Options | Low
Derivative [Line Items]
Option Price (USD per unit)	2.50
2021 | Short Put Options
Derivative [Line Items]
Volume in MMbtu | MMBTU	2,250,000
Weighted Average Option Price (USD per unit)	2.15
2021 | Short Put Options | High
Derivative [Line Items]
Option Price (USD per unit)	2.15
2021 | Short Put Options | Low
Derivative [Line Items]
Option Price (USD per unit)	2.15

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Derivatives (Basis Swap Derivative Contracts) (Details) - Natural Gas Basis Swap Derivative Contracts	3 Months Ended
	Mar. 31, 2019 MMBTU $ / MMBTU
Jul 19 - Dec 19
Derivative [Line Items]
Volume in MMbtu | MMBTU	460,000
Weighted average spread | $ / MMBTU	(0.93)
Jan 19 - Dec 19
Derivative [Line Items]
Volume in MMbtu | MMBTU	13,450,000
Weighted average spread | $ / MMBTU	(0.70)
Jan 20 - Mar 20
Derivative [Line Items]
Volume in MMbtu | MMBTU	910,000
Weighted average spread | $ / MMBTU	(0.49)
Jan 19 - Oct 19
Derivative [Line Items]
Volume in MMbtu | MMBTU	2,140,000
Weighted average spread | $ / MMBTU	(0.81)

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Accounts Payable And Accrued Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Payables and Accruals [Abstract]
Accounts payable	$ 8,502	$ 20,200
Accruals for capital expenditures	25,964	101,214
Revenue and royalties payable	40,365	46,870
Accruals for operating expenses	8,910	16,355
Accrued interest	13,754	1,784
Derivative settlements	49	109
Other	11,122	10,532
Total accrued liabilities	100,164	176,864
Accounts payable and accrued liabilities	$ 108,666	$ 197,064

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Asset Retirement Obligations (Details) - USD ($) $ in Thousands	1 Months Ended	2 Months Ended	3 Months Ended
	Feb. 08, 2018	Mar. 31, 2018	Mar. 31, 2019	Mar. 31, 2019	Dec. 31, 2018	Mar. 31, 2018	Feb. 08, 2018
Asset Retirement Obligation [Line Items]
Balance, beginning of period		$ 0	$ 11,409
Liabilities assumed		5,998	0
Liabilities incurred		421	315
Liabilities settled		(166)	(147)
Revisions to estimates		300	(4)
Accretion expense		102	225
Balance, end of period		0	$ 11,409	$ 11,798	$ 11,409	$ 6,655	$ 0
Less: Current portion				48	2,079	622
Long-term portion				$ 11,750	$ 9,330	$ 6,033
Predecessor
Asset Retirement Obligation [Line Items]
Balance, beginning of period	$ 10,469	10,508
Liabilities assumed	0
Liabilities incurred	0
Liabilities settled	(63)
Revisions to estimates	63
Accretion expense	39
Balance, end of period	$ 10,469	$ 10,508					10,508
Less: Current portion							33
Long-term portion							$ 10,475

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Long Term Debt, Net (Schedule of Long-Term Debt, Net) (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018	Feb. 09, 2018
Debt Instrument [Line Items]
Total long-term debt, net	$ 805,892	$ 690,123
2024 Notes
Debt Instrument [Line Items]
2024 Notes		500,000	$ 500,000
Unamortized premium on 2024 notes
Debt Instrument [Line Items]
Unamortized premium on 2024 notes	27,892	29,123
Alta Mesa RBL | Alta Mesa RBL
Debt Instrument [Line Items]
Alta Mesa RBL	$ 278,000	$ 161,000

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Long Term Debt, Net (Narrative) (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Feb. 09, 2018 USD ($)
2024 Notes
Debt Instrument [Line Items]
2024 Notes		$ 500,000	$ 500,000
Alta Mesa Credit Facility
Debt Instrument [Line Items]
Debt covenant, current ratio, minimum required	1.0
Maximum leverage ratio	4
Alta Mesa RBL | 2024 Notes
Debt Instrument [Line Items]
Notes Payable, Fair Value Disclosure	$ 194,900

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Long Term Debt, Net (Summary Of Future Maturities Of Long-Term Debt) (Details) $ in Thousands	Mar. 31, 2019 USD ($)
Summary of future maturities of long-term debt
2019	$ 0
2020	0
2021	0
2022	0
2023	278,000
Thereafter	500,000
Total long-term debt	$ 778,000

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Significant Concentrations (Details) - USD ($) $ in Thousands	1 Months Ended	2 Months Ended	3 Months Ended	12 Months Ended
	Feb. 08, 2018	Mar. 31, 2018	Mar. 31, 2019	Dec. 31, 2016	Dec. 31, 2018
Concentration Risk [Line Items]
Revenues		$ 33,885	$ 94,303
AEM
Concentration Risk [Line Items]
Revenues	$ 28,757		83,831	$ 37,343
Fees paid	66	74	193
Total fees paid to ARM	66	74	854
Accounts receivable			3,800		$ 38,400
Marketing fees | AEM
Concentration Risk [Line Items]
Fees paid	$ 0	$ 0	$ 661

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Equity-Based Compensation (Successor) (Stock Compensation Expense) (Details) - USD ($) $ in Thousands	1 Months Ended	2 Months Ended	3 Months Ended
	Feb. 08, 2018	Mar. 31, 2018	Mar. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total compensation expense		$ 2,768	$ 1,661
Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total compensation expense		1,048	791
Restricted stock awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total compensation expense		564	862
Performance-based restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total compensation expense		$ 1,156	$ 8
Predecessor
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total compensation expense	$ 0
Predecessor | Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total compensation expense	0
Predecessor | Restricted stock awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total compensation expense	0
Predecessor | Performance-based restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total compensation expense	$ 0

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Equity-Based Compensation (Successor) (Narrative) (Details) - Performance-based restricted stock units - $ / shares	3 Months Ended	11 Months Ended
	Mar. 31, 2019	Dec. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period		3 years
Awards deemed granted (in shares)	595,417
Fair value of tranche granted (in USD per share)	$ 0.27
Tranche one
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting rate		20.00%
Tranche two
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting rate		30.00%
Tranche three
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting rate		50.00%
Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of shares that may be earned		0.00%
Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of shares that may be earned		200.00%

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Related Party Transactions (Details)			2 Months Ended	3 Months Ended	12 Months Ended
	Feb. 08, 2018 USD ($)	Dec. 31, 2016	Mar. 31, 2018 USD ($)	Mar. 31, 2019 USD ($) well	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)	Jan. 13, 2016 well
Related Party Transaction [Line Items]
Advances from related party				$ 4,479,000	$ 9,822,000
BCE
Related Party Transaction [Line Items]
Advances from related party				4,500,000	9,800,000
Land consulting services | Vice President | David Murrell, VP of Land and Business Development
Related Party Transaction [Line Items]
Total fees paid to ARM			$ 36,000
Land consulting services | Predecessor | Vice President | David Murrell, VP of Land and Business Development
Related Party Transaction [Line Items]
Total fees paid to ARM	$ 28,000
Compensation to related party | Vice President | David Mcclure Vp of Facilities and Infrastructure
Related Party Transaction [Line Items]
Total compensation			970,197	768,860
Compensation to related party | Landman | David Pepper, Surface Land Manager
Related Party Transaction [Line Items]
Total compensation			$ 112,761	70,180
Compensation to related party | Predecessor | Vice President | David Mcclure Vp of Facilities and Infrastructure
Related Party Transaction [Line Items]
Total compensation					28,874
Compensation to related party | Predecessor | Landman | David Pepper, Surface Land Manager
Related Party Transaction [Line Items]
Total compensation					67,322
KFM | Affiliated Entity
Related Party Transaction [Line Items]
Advances from related party					2,900,000
AMR | Affiliated Entity
Related Party Transaction [Line Items]
Advances from related party				500,000	$ 500,000
Joint Development Agreement
Related Party Transaction [Line Items]
Number of wells to be drilled in three tranches | well							60
Number of additional wells to be drilled | well							20
Reduced interest (percent)		12.50%
Internal rate of return		25.00%
Joint Development Agreement | BCE
Related Party Transaction [Line Items]
Percent committed to fund		100.00%
Drilling and completion costs (maximum)						$ 3,200,000
Working interest received (percent)		80.00%
Reduced interest (percent)		20.00%
Internal rate of return		15.00%
Advances from related party				$ 39,500,000
Number of wells drilled | well				61