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ACQUISITIONS AND DIVESTITURES-Pecos County Consideration (Details) $ in Thousands			2 Months Ended
	Jan. 24, 2017	Nov. 01, 2016 USD ($) $ / Mcf $ / Boe $ / bbl	Dec. 31, 2016 USD ($)	Jun. 30, 2017 USD ($)	Sep. 09, 2016 USD ($)
Estimated Fair Value of Assets Acquired:
Evaluated oil and natural gas properties			$ 1,269,034	$ 1,326,160	$ 1,214,129
Gas gathering and other operating assets			38,617	$ 67,595	$ 38,071
8% Convertible Preferred Stock
Additional disclosures
Dividend rate (as a percent)	8.00%
Pecos County Assets
Consideration paid for acquisition and the estimated values of assets acquired and liabilities assumed
Cash consideration paid to Samson at closing		$ 703,865
Less: Estimated post-effective closing date adjustments		(4,816)
Final estimated consideration transferred		699,049
Plus: Estimated Fair Value of Liabilities Assumed:
Current liabilities		839
Asset retirement obligations		2,116
Amount attributable to liabilities assumed		2,955
Total purchase price plus liabilities assumed		702,004
Estimated Fair Value of Assets Acquired:
Evaluated oil and natural gas properties		150,275
Unevaluated oil and natural gas properties		525,350
Gas gathering and other operating assets		26,379
Amount attributable to assets acquired		702,004
Additional disclosures
Goodwill		$ 0
Net of reductions to the purchase price consideration			$ (1,100)
Weighted average cost of capital rate (as a percent)		10.0
Weighted average cost of capital for probable and possible reserves rate (as a percent)		12.0
Development plan in years		5 years
Pecos County Assets | Crude oil
Additional disclosures
Weighted average commodity prices | $ / bbl		76.10
Pecos County Assets | Natural gas
Additional disclosures
Weighted average commodity prices | $ / Mcf		4.14
Pecos County Assets | NGLs
Additional disclosures
Weighted average commodity prices | $ / Boe		29.48
Pecos County Assets | 8% Convertible Preferred Stock
Additional disclosures
Net proceeds received		$ 400,100
Dividend rate (as a percent)		8.00%

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