Financial Statement Presentation (Tables)

9 Months Ended

Sep. 30, 2018

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Schedule of New Accounting Pronouncements and Changes in Accounting Principles

The following table presents revenues disaggregated by product:

	Three Months Ended September 30,						Nine Months Ended September 30,
(In thousands)	2018			2017			2018			2017
OPERATING REVENUES
Natural gas	$	440,835		$	323,319		$	1,217,603		$	1,152,089
Crude oil and condensate	—			56,913			48,722			144,528
Brokered natural gas	105,849			3,528			203,375			12,260
Other	2,026			2,492			3,775			8,486
Total revenues from contracts with customers	548,710			386,252			1,473,475			1,317,363
Gain (loss) on derivative instruments	(3,537		)	(836		)	(1,628		)	46,353
Total operating revenues	$	545,173		$	385,416		$	1,471,847		$	1,363,716