Risk Management and Derivative Instruments (Tables)

12 Months Ended

Dec. 31, 2016

Derivative Instruments And Hedging Activities Disclosure [Abstract]

Open Commodity Positions

At December 31, 2016, the Partnership had the following open commodity positions:

	2017		2018		2019
Natural Gas Derivative Contracts:
Fixed price swap contracts:
Average Monthly Volume (MMBtu)		1,890,000		1,740,000		1,000,000
Weighted-average fixed price	$	3.86	$	3.83	$	3.47
Crude Oil Derivative Contracts:
Fixed price swap contracts:
Average Monthly Volume (Bbls)		184,500		182,000		70,000
Weighted-average fixed price	$	84.29	$	83.44	$	86.84
NGL Derivative Contracts:
Fixed price swap contracts:
Average Monthly Volume (Bbls)		43,300		—		—
Weighted-average fixed price	$	37.55	$	—	$	—

Gross Fair Value of Derivative Instruments by Appropriate Balance Sheet

The following table summarizes both: (i) the gross fair value of derivative instruments by the appropriate balance sheet classification even when the derivative instruments are subject to netting arrangements and qualify for net presentation in the balance sheet and (ii) the net recorded fair value as reflected on the balance sheet at December 31, 2016 and 2015. There was no cash collateral received or pledged associated with our derivative instruments since most of the counterparties, or certain of their affiliates, to our derivative contracts are lenders under our credit agreement.

		Asset Derivatives						Liability Derivatives
		December 31,			December 31,			December 31,			December 31,
Type	Balance Sheet Location	2016			2015			2016			2015
		(In thousands)
Commodity contracts	Short-term derivative instruments	$	86,335		$	324,265		$	16,871		$	53,581
Interest rate swaps	Short-term derivative instruments		—			—			—			1,214
Gross fair value			86,335			324,265			16,871			54,795
Netting arrangements	Short-term derivative instruments		(16,871	)		(51,945	)		(16,871	)		(51,945	)
Net recorded fair value	Short-term derivative instruments	$	69,464		$	272,320		$	—		$	2,850
Commodity contracts	Long-term derivative instruments	$	103,515		$	492,730		$	885		$	30,920
Interest rate swaps	Long-term derivative instruments		—			—			—			1,441
Gross fair value			103,515			492,730			885			32,361
Netting arrangements	Long-term derivative instruments		(885	)		(30,920	)		(885	)		(30,920	)
Net recorded fair value	Long-term derivative instruments	$	102,630		$	461,810		$	—		$	1,441

Unrealized and Realized Gains and Losses Related to Derivative Instruments

The following table details the gains and losses related to derivative instruments for the years ending December 31, 2016, 2015, and 2014:

		For the Year Ended
	Statements of	December 31,
	Operations Location	2016		2015			2014
Commodity derivative contracts	(Gain) loss on commodity derivatives	$	117,105	$	(462,890	)	$	(492,254	)
Interest rate derivatives	Interest expense, net		1,290		4,674			(151	)