Derivative Instruments (Tables)

6 Months Ended

Jun. 30, 2019

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Commodity Derivative Positions

The following table sets forth our commodity derivative positions, presented on a net basis by period of maturity, as of June 30, 2019:

		Average	Weighted
		Volume Per	Average		Fair Value
	Instrument	Day	Price		Asset		Liability
Crude Oil:		(barrels)	($/barrel)
Third quarter 2019	Swaps-WTI	7,397	$	55.70	$	—	$	1,677
Third quarter 2019	Swaps-LLS	5,000	$	59.17	—		1,589
Third quarter 2019	Swaps-MEH	1,000	$	64.00	15		—
Fourth quarter 2019	Swaps-WTI	7,398	$	55.70	—		1,222
Fourth quarter 2019	Swaps-LLS	5,000	$	59.17	—		1,059
Fourth quarter 2019	Swaps-MEH	1,000	$	64.00	46		—
First quarter 2020	Swaps-WTI	7,000	$	54.94	—		1,048
First quarter 2020	Swaps-MEH	2,000	$	61.03	—		108
Second quarter 2020	Swaps-WTI	7,000	$	54.94	—		375
Second quarter 2020	Swaps-MEH	2,000	$	61.03	—		75
Third quarter 2020	Swaps-WTI	7,000	$	54.93	164		—
Third quarter 2020	Swaps-MEH	2,000	$	61.03	—		52
Fourth quarter 2020	Swaps-WTI	7,000	$	54.93	569		—
Fourth quarter 2020	Swaps-MEH	2,000	$	61.03	—		51
Settlements to be paid in subsequent period							4

Impact of Derivative Activities on Condensed Consolidated Statements of Income

The impact of our derivative activities on income is included in “Derivatives” in our Condensed Consolidated Statements of Operations. The following table summarizes the effects of our derivative activities for the periods presented:

	Three Months Ended June 30,					Six Months Ended June 30,
	2019		2018			2019			2018
Derivative income (losses)	$	13,603	$	(52,241	)	$	(54,414	)	$	(71,036	)

Fair Value of Derivative Instruments on Condensed Consolidated Balance Sheets

The following table summarizes the fair values of our derivative instruments presented on a gross basis, as well as the locations of these instruments on our Condensed Consolidated Balance Sheets as of the dates presented:

		June 30, 2019				December 31, 2018
		Derivative		Derivative		Derivative		Derivative
Type	Balance Sheet Location	Assets		Liabilities		Assets		Liabilities
Commodity contracts	Derivative assets/liabilities – current	$	7,182	$	14,203	$	34,932	$	991
Commodity contracts	Derivative assets/liabilities – noncurrent	2,756		2,201		10,100		—
		$	9,938	$	16,404	$	45,032	$	991