Derivative And Financial Instruments (Tables)

3 Months Ended

Mar. 31, 2018

Derivative And Financial Instruments

Summary Of Derivative Contracts In Place

Fixed Price Basis Swaps – West Texas Intermediate (WTI)

	Three Months Ended (volume in Bbls)
	March 31,			June 30,			September 30,			December 31,			Total
		Average			Average			Average			Average			Average
	Volume	Price		Volume	Price		Volume	Price		Volume	Price		Volume	Price
2018	—	$	—	66,432	$	59.71	62,840	$	59.78	59,704	$	59.84	188,976	$	59.77
2019	62,528	$	60.41	59,552	$	60.44	57,024	$	60.48	54,824	$	60.52	233,928	$	60.46
2020	52,776	$	53.50	50,960	$	53.50	49,224	$	53.50	47,624	$	53.50	200,584	$	53.50
													623,488

Fixed Price Swaps—NYMEX (Henry Hub)

	Three Months Ended (volume in MMBtu)
	March 31,			June 30,			September 30,			December 31,			Total
		Average			Average			Average			Average			Average
	Volume	Price		Volume	Price		Volume	Price		Volume	Price		Volume	Price
2018	—	$	—	126,600	$	3.00	121,600	$	3.00	117,040	$	3.00	365,240	$	3.00
2019	119,832	$	2.85	115,784	$	2.85	112,032	$	2.85	108,552	$	2.85	456,200	$	2.85
2020	105,104	$	2.85	102,008	$	2.85	99,136	$	2.85	96,200	$	2.85	402,448	$	2.85
													1,223,888

Reconciliation Of Changes In Fair Value Of Derivatives

The following table sets forth a reconciliation of the changes in fair value of the Partnership’s commodity derivatives for the three months ended March 31, 2018 and the year ended December 31, 2017 (in thousands):

	Three Months Ended		Year Ended
	March 31, 2018		December 31, 2017
Beginning fair value of commodity derivatives	$	1,231	$	6,436
Net gains (losses) on crude oil derivatives		(1,939)		3,284
Net gains on natural gas derivatives		2		663
Net settlements paid (received) on derivative contracts:
Oil		229		(6,422)
Natural gas		—		(2,730)
Ending fair value of commodity derivatives	$	(477)	$	1,231

Schedule Of Effect Of Derivative Instruments On Consolidated Statements Of Operations

	Three Months Ended		Year Ended
	March 31, 2018		December 31, 2017
Beginning fair value of commodity derivatives	$	1,231	$	6,436
Net gains (losses) on crude oil derivatives		(1,939)		3,284
Net gains on natural gas derivatives		2		663
Net settlements paid (received) on derivative contracts:
Oil		229		(6,422)
Natural gas		—		(2,730)
Ending fair value of commodity derivatives	$	(477)	$	1,231

The effect of derivative instruments on our condensed consolidated statements of operations was as follows (in thousands):

	Location of Gain(Loss)	Three Months Ended March 31,
Derivative Type	in Income	2018		2017
Commodity – Mark-to-Market	Oil sales	$	(1,939)	$	5,495
Commodity – Mark-to-Market	Natural gas sales		2		560
		$	(1,937)	$	6,055