Additionally, until March 22, 2019, we owned Tioga Midstream, a crude oil, produced water and associated natural gas gathering system operating in the Williston Basin, which includes the Bakken and Three Forks shale formations in northwestern North Dakota. Refer to Note 17 to the unaudited condensed consolidated financial statements for details on the sale of Tioga Midstream.

Each of our reportable segments provides midstream services in a specific geographic area. Our reportable segments reflect the way in which we internally report the financial information used to make decisions and allocate resources in connection with our operations.

The Ohio Gathering reportable segment includes our investment in OGC and OCC. Income or loss from equity method investees, as reflected on the statements of operations, relates to Ohio Gathering and is recognized and disclosed on a one-month lag (see Note 8).

For the three and nine months ended September 30, 2019, other than the investment activity described in Note 8, Double E did not have any results of operations given that the Project is currently under development. The Project is expected to be operational in the third quarter of 2021.

Corporate and Other represents those results that are: (i) not specifically attributable to a reportable segment; (ii) not individually reportable (such as Double E); or (iii) that have not been allocated to our reportable segments for the purpose of evaluating their performance, including certain general and administrative expense items, natural gas and crude oil marketing services and transaction costs.

	September 30,2019		December 31, 2018
	(In thousands)
Assets (1):
Utica Shale	$	207,850	$	207,357
Ohio Gathering		620,496		649,250
Williston Basin		445,838		526,819
DJ Basin		187,542		166,580
Permian Basin		184,386		145,702
Piceance Basin		665,489		699,638
Barnett Shale		354,173		376,564
Marcellus Shale		186,899		208,790
Total reportable segment assets		2,852,673		2,980,700
Corporate and Other		48,783		44,181
Eliminations		—		(4,319	)
Total assets	$	2,901,456	$	3,020,562

(1) At September 30, 2019, Corporate and Other included $28.3 million relating to our investment in Double E (included in the Investment in equity method investees caption of the unaudited condensed consolidated balance sheet). At December 31, 2018, Corporate and Other included $9.6 million of capital expenditures relating to the Project.

	Three months ended September 30,					Nine months ended September 30,
	2019		2018			2019			2018
	(In thousands)
Revenues (1):
Utica Shale	$	8,865	$	7,974		$	23,951		$	28,437
Williston Basin		21,118		29,010			77,440			90,850
DJ Basin		7,867		3,782			17,839			10,355
Permian Basin		4,885		—			12,545			—
Piceance Basin		33,111		38,683			101,995			116,689
Barnett Shale		17,820		21,020			52,452			53,345
Marcellus Shale		5,987		7,150			18,081			23,025
Total reportable segments revenue		99,653		107,619			304,303			322,701
Corporate and Other		534		23,636			31,196			57,234
Eliminations		—		(3,776	)		(4,218	)		(6,953	)
Total revenues	$	100,187	$	127,479		$	331,281		$	372,982

	Three months ended September 30,						Nine months ended September 30,
	2019			2018			2019			2018
Percentage of total revenues (1):
Counterparty A - Piceance Basin		12	%		11	%		11	%		11	%
Counterparty B - Williston Basin		10	%	*				10	%	*
Counterparty C - Barnett Shale	*				12	%	*				10	%

Depreciation and amortization, including the amortization expense associated with our favorable and unfavorable (for 2018) gas gathering contracts as reported in Other revenues, by reportable segment follows.

	Three months ended September 30,				Nine months ended September 30,
	2019		2018		2019		2018
	(In thousands)
Depreciation and amortization (1):
Utica Shale	$	1,913	$	1,887	$	5,744	$	5,773
Williston Basin		4,788		5,672		14,958		16,903
DJ Basin		775		783		2,038		2,349
Permian Basin		1,312		—		3,547		—
Piceance Basin		11,798		11,729		35,399		35,168
Barnett Shale (2)		4,045		3,760		12,542		11,276
Marcellus Shale		2,286		2,273		6,855		6,819
Total reportable segment depreciation and amortization		26,917		26,104		81,083		78,288
Corporate and Other		723		488		1,836		1,464
Total depreciation and amortization	$	27,640	$	26,592	$	82,919	$	79,752

(1) Excludes depreciation and amortization recognized by Ohio Gathering due to equity method accounting.

(2) Includes the amortization expense associated with our favorable and unfavorable (for 2018) gas gathering contracts as reported in Other revenues.

	Nine months ended September 30,
	2019		2018
	(In thousands)
Cash paid for capital expenditures (1):
Utica Shale	$	2,473	$	3,922
Williston Basin		20,288		18,463
DJ Basin		66,775		38,864
Permian Basin		43,422		67,640
Piceance Basin		1,919		5,302
Barnett Shale (2)		317		914
Marcellus Shale		347		557
Total reportable segment capital expenditures		135,541		135,662
Corporate and Other		16,122		1,371
Total cash paid for capital expenditures	$	151,663	$	137,033

(1) Excludes cash paid for capital expenditures by Ohio Gathering due to equity method accounting.

(2) For the nine months ended September 30, 2019, the amount includes sales tax reimbursements of $1.1 million.

During the nine months ended September 30, 2019, Corporate and Other included cash paid of $0.7 million for corporate purposes; the remainder represents capital expenditures relating to the Project.

We assess the performance of our reportable segments based on segment adjusted EBITDA. We define segment adjusted EBITDA as total revenues less total costs and expenses; plus (i) other income excluding interest income, (ii) our proportional adjusted EBITDA for equity method investees, (iii) depreciation and amortization, (iv) adjustments related to MVC shortfall payments, (v) adjustments related to capital reimbursement activity, (vi) unit-based and noncash compensation, (vii) change in the Deferred Purchase Price Obligation fair value, (viii) impairments and (ix) other noncash expenses or losses, less other noncash income or gains. We define proportional adjusted EBITDA for our equity method investees as the product of (i) total revenues less total expenses, excluding impairments and other noncash income or expense items, and amortization for deferred contract costs; and (ii) our ownership interest in Ohio Gathering during the respective period.

For the purpose of evaluating segment performance, we exclude the effect of Corporate and Other revenues and expenses, such as certain general and administrative expenses (including compensation-related expenses and professional services fees), natural gas and crude oil marketing services, transaction costs, interest expense, change in the Deferred Purchase Price Obligation fair value and income tax expense or benefit from segment adjusted EBITDA.

	Three months ended September 30,				Nine months ended September 30,
	2019		2018		2019			2018
	(In thousands)
Reportable segment adjusted EBITDA
Utica Shale	$	7,864	$	6,521	$	20,697		$	24,459
Ohio Gathering		10,435		10,171		29,584			29,583
Williston Basin		13,840		19,849		49,224			54,849
DJ Basin		6,554		2,248		12,043			4,528
Permian Basin		210		—		(996	)		—
Piceance Basin		24,044		27,583		74,627			82,211
Barnett Shale		10,901		10,818		33,483			31,770
Marcellus Shale		4,958		5,550		14,735			18,769
Total of reportable segments' measures of profit	$	78,806	$	82,740	$	233,397		$	246,169

A reconciliation of income or loss before income taxes and income or loss from equity method investees to total of reportable segments' measures of profit or loss follows.

	Three months ended September 30,						Nine months ended September 30,
	2019			2018			2019			2018
	(In thousands)
Reconciliation of (loss) income before income taxes and loss from equity method investees to total of reportable segments' measures of profit:
(Loss) income before income taxes and loss from equity method investees	$	(9,947	)	$	58,589		$	(40,183	)	$	7,488
Add:
Corporate and Other expense		7,039			9,324			28,406			28,949
Interest expense		19,335			14,862			54,803			44,821
Deferred Purchase Price Obligation		3,760			(37,204	)		11,899			53,759
Depreciation and amortization		27,640			26,592			82,919			79,752
Proportional adjusted EBITDA for equity method investees		10,435			10,171			29,584			29,583
Adjustments related to MVC shortfall payments		3,534			(2,999	)		2,868			(6,541	)
Adjustments related to capital reimbursement activity		(145	)		(106	)		(1,906	)		49
Unit-based and noncash compensation		1,291			1,965			5,370			6,188
(Gain) loss on asset sales, net		(347	)		6			(1,595	)		(6	)
Long-lived asset impairment		—			1,540			45,021			2,127
Goodwill impairment		16,211			—			16,211			—
Total of reportable segments' measures of profit	$	78,806		$	82,740		$	233,397		$	246,169

Adjustments related to MVC shortfall payments recognize the earnings from MVC shortfall payments ratably over the term of the associated MVC (see Note 3). Contributions in aid of construction are recognized over the remaining term of the respective contract. We include adjustments related to capital reimbursement activity in our calculation of segment adjusted EBITDA to account for revenue recognized from contributions in aid of construction.