ACQUISITIONS AND DIVESTITURES (Details 3) (USD $)							0 Months Ended			1 Months Ended	12 Months Ended						1 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013 9.75% Senior Notes	Dec. 19, 2013 9.75% Senior Notes	Dec. 31, 2012 9.75% Senior Notes	Jul. 16, 2012 9.75% Senior Notes	Aug. 02, 2012 East Texas Assets	Aug. 03, 2012 East Texas Assets	Aug. 03, 2012 East Texas Assets	Aug. 31, 2012 East Texas Assets	Dec. 31, 2012 East Texas Assets	Jul. 31, 2012 East Texas Assets	Aug. 31, 2012 East Texas Assets Natural gas	Aug. 31, 2012 East Texas Assets NGLs	Aug. 31, 2012 East Texas Assets Oil	Aug. 31, 2012 East Texas Assets 9.75% Senior Notes	Aug. 31, 2012 East Texas Assets As initially reported	Aug. 31, 2012 East Texas Assets Measurement Period Adjustments	Aug. 31, 2012 East Texas Assets Common stock
Purchase Price:
Shares of Halcon common stock issued							16,460,000	4,310,000	20,770,000										20,800,000
Halcon common stock price (in dollars per share)							$ 6.26					$ 6.40
Fair value of Halcon common stock issued										$ 130,623,000
Cash consideration paid to Sellers										296,139,000	296,139,000						296,100,000	5,400,000
Total purchase price										426,762,000
Estimated fair value of liabilities assumed:
Current liabilities										192,000
Asset retirement obligations										337,000
Amount attributable to liabilities assumed										529,000
Total purchase price plus liabilities assumed										427,291,000
Estimated fair value of assets acquired:
Evaluated oil and natural gas properties	4,960,467,000	2,669,245,000								337,303,000
Unevaluated oil and natural gas properties										89,988,000
Amount attributable to assets acquired										427,291,000
Additional disclosures
Principal amount			$ 1,150,000,000		$ 1,150,000,000	$ 750,000,000										$ 750,000,000
Interest rate (as a percent)			9.75%	9.75%	9.75%	9.75%										9.75%
Weighted average commodity prices													6.26	49.68	98.35