Price-Risk Management Price-Risk Management (Tables)

9 Months Ended

Sep. 30, 2016

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule of Derivative Instruments [Table Text Block]

Oil Derivative Swaps (NYMEX WTI Settlements)	Total Volumes (Bbls)	Weighted Average Price
2016 Contracts
4Q16	155,997	$	48.28
2017 Contracts
1Q17	106,245	$	48.04
2Q17	97,401	$	48.13
3Q17	90,000	$	48.16
4Q17	84,798	$	48.18

Natural Gas Derivative Swaps (NYMEX Henry Hub Settlements)	Total Volumes (MMBtu)	Weighted Average Price
2016 Contracts
4Q16	3,500,002	$	2.75
2017 Contracts
1Q17	3,975,000	$	2.89
2Q17	3,625,005	$	2.80
3Q17	3,339,999	$	2.81
4Q17	3,125,001	$	2.83

Natural Gas Basis Derivative Swap (East Texas Houston Ship Channel vs NYMEX Settlements)	Total Volumes (MMBtu)	Weighted Average Price
2016 Contracts
4Q16	3,500,002	$	(0.06	)
2017 Contracts
1Q17	3,975,000	$	(0.06	)
2Q17	3,625,005	$	(0.04	)
3Q17	3,339,999	$	(0.04	)
4Q17	3,125,001	$	(0.05	)