Summary of Significant Accounting Policies (Tables)

6 Months Ended

Jun. 30, 2018

The impacts of the adoption of ASU 2014-09 for the three and six months ended June 30, 2018, were as follows (in thousands):



	Three Months Ended June 30, 2018						Six Months Ended June 30, 2018
	As Reported		Amounts Without Adoption of ASU 2014-09		Effect of Change		As Reported		Amounts Without Adoption of ASU 2014-09		Effect of Change
Operating Revenues and Other
Crude Oil and Condensate	$	2,377,528	$	2,377,528	$	—	$	4,478,836	$	4,478,836	$	—
Natural Gas Liquids	286,354		284,898		1,456		507,769		504,543		3,226
Natural Gas	300,845		257,652		43,193		600,611		514,273		86,338
Gathering, Processing and Marketing	1,436,436		1,431,077		5,359		2,538,258		2,527,313		10,945
Total Operating Revenues and Other	4,238,077		4,188,069		50,008		7,919,239		7,818,730		100,509
Operating Expenses
Gathering and Processing Costs	109,169		64,520		44,649		210,514		120,950		89,564
Marketing Costs	1,420,463		1,415,104		5,359		2,526,853		2,515,908		10,945
Total Operating Expenses	3,273,146		3,223,138		50,008		6,079,720		5,979,211		100,509
Operating Income	964,931		964,931		—		1,839,519		1,839,519		—