Gulfport Energy Corporation Annual report pursuant to Section 13 and 15(d)

Annual report pursuant to Section 13 and 15(d)

Equity Investments (Narrative) (Details)

Equity Investments (Narrative) (Details) (USD $)	12 Months Ended			9 Months Ended	0 Months Ended		1 Months Ended				3 Months Ended		1 Months Ended
Equity Investments (Narrative) (Details) (USD $)	Dec. 31, 2014 acre	Dec. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jan. 28, 2014	Nov. 12, 2014	Sep. 30, 2014	Jun. 30, 2014	Nov. 30, 2013	Jun. 30, 2013	Sep. 30, 2014	Dec. 31, 2014	Feb. 26, 2015	May 31, 2013	Dec. 31, 2011	Jan. 01, 2008	May 15, 2012	Jul. 02, 2013	Dec. 17, 2012	Oct. 11, 2012
Schedule of Equity Method Investments [Line Items]
Gas and oil area, reserve (acres)	243,000gpor_GasAndOilAreaReserve
(Income) loss from equity method investments	$ 139,434,000	$ 213,058,000	$ 8,322,000
Amount put in escrow														10,000,000us-gaap_EscrowDeposit
Equity investments	369,581,000us-gaap_EquityMethodInvestments	440,068,000us-gaap_EquityMethodInvestments										369,581,000us-gaap_EquityMethodInvestments
Distributions received	0	1,276,000	820,000
Advances on note receivable to related party	(875,000)	875,000	0
Interest income	195,000us-gaap_InvestmentIncomeInterest	297,000us-gaap_InvestmentIncomeInterest	72,000us-gaap_InvestmentIncomeInterest
Cumulative translation adjustment	(26,675,000)	(9,781,000)	2,442,000									(26,675,000)			1,087,000
Payments for equity method investments	63,999,000	47,014,000	147,307,000
Coronado Midstream LLC [Member] \| Windsor Midstream LLC [Member]
Schedule of Equity Method Investments [Line Items]
Ownership interest	28.40%											28.40%
Tatex Thailand II, LLC [Member]
Schedule of Equity Method Investments [Line Items]
(Income) loss from equity method investments	475,000	343,000	(7,000)
Ownership interest	23.50%											23.50%
Apico Llc [Member]
Schedule of Equity Method Investments [Line Items]
Equity shares owned by affiliate (shares)	85,122
Total shares owned of subaffiliate (shares)	1,000,000
Tatex Thailand III LLC [Member]
Schedule of Equity Method Investments [Line Items]
Gas and oil area, reserve (acres)	245,000
(Income) loss from equity method investments	(12,408,000)	(254,000)	(251,000)
Cash calls paid	(1,600,000)	(2,400,000)
Ownership interest	17.90%											17.90%
Equity investments	0	10,774,000										0
Grizzly Oil Sands ULC [Member]
Schedule of Equity Method Investments [Line Items]
Gas and oil area, reserve (acres)	830,000
(Income) loss from equity method investments	(13,159,000)	(2,999,000)	(1,512,000)
Cash calls paid	(18,800,000)	(33,900,000)
Ownership interest	25.00%											25.00%
Equity investments	180,218,000	191,473,000										180,218,000
Increase (decrease) due to foreign currency translation adjustment	16,900,000	12,200,000	(1,400,000)
Loans receivable, basis spread on variable rate																4.00%
Bison Drilling And Field Services LLC [Member]
Schedule of Equity Method Investments [Line Items]
(Income) loss from equity method investments	(213,000)	(3,533,000)	(373,000)
Cash calls paid	(17,000,000)	(2,300,000)
Ownership interest	0.00%											0.00%
Equity investments		12,318,000
Loans receivable, description of variable rate basis	LIBOR
Amount loaned during period				1,600,000
Bison Drilling And Field Services LLC [Member] \| Maximum [Member]
Schedule of Equity Method Investments [Line Items]
Loans receivable, maximum rate																	8.00%
Muskie Holdings LLC [Member]
Schedule of Equity Method Investments [Line Items]
(Income) loss from equity method investments	(371,000)	(1,975,000)	(1,031,000)
Cash calls paid	(1,000,000)	(2,200,000)
Ownership interest	0.00%											0.00%
Equity investments		7,544,000
Loan receivable																		900,000
Timber Wolf Terminals LLC [Member]
Schedule of Equity Method Investments [Line Items]
(Income) loss from equity method investments	(9,000)	6,000	(122,000)
Cash calls paid		(100,000)
Ownership interest	50.00%											50.00%
Equity investments	1,013,000	1,001,000										1,013,000
Payments for equity method investments			1,000,000
Windsor Midstream LLC [Member]
Schedule of Equity Method Investments [Line Items]
(Income) loss from equity method investments	477,000	1,125,000	663,000
Cash calls paid	(2,400,000)
Ownership interest	22.50%											22.50%
Equity investments	13,505,000	10,632,000										13,505,000
Stingray Pressure Pumping LLC [Member]
Schedule of Equity Method Investments [Line Items]
(Income) loss from equity method investments	(2,027,000)	818,000	(1,235,000)
Cash calls paid	(2,500,000)	(1,800,000)
Ownership interest	0.00%											0.00%
Equity investments		19,624,000
Blackhawk Midstream LLC [Member]
Schedule of Equity Method Investments [Line Items]
(Income) loss from equity method investments	84,787,000	(673,000)	(436,000)
Cash calls paid		(700,000)
Ownership interest	0.00%											0.00%
Equity investments	0	0										0
Net proceeds received from release of escrow	7,200,000
Blackhawk Midstream LLC [Member] \| Ohio Gathering Company, LLC and Ohio Condensate Company, LLC [Member]
Schedule of Equity Method Investments [Line Items]
Purchase price					190,000,000
Amount put in escrow					14,300,000
Distributions received					84,800,000
Diamondback Energy LLC [Member]
Schedule of Equity Method Investments [Line Items]
(Income) loss from equity method investments	79,654,000	220,129,000	12,821,000
Equity investments	0	178,708,000										0							138,500,000
Diamondback Energy, Inc [Member]
Schedule of Equity Method Investments [Line Items]
Ownership interest	0.00%	7.20%	21.40%									0.00%
Investment (shares)																				7,914,036
Sale of stock, Number of shares issued in transaction						942,000	1,437,500	1,000,000	2,300,000	2,234,536
Sale of stock, consideration received						60,800,000	197,600,000		192,700,000
Stingray Energy Services LLC [Member]
Schedule of Equity Method Investments [Line Items]
(Income) loss from equity method investments	88,000	215,000	0
Ownership interest	50.00%											50.00%
Equity investments	5,718,000	3,800,000										5,718,000
Sturgeon Acquisitions LLC [Member]
Schedule of Equity Method Investments [Line Items]
(Income) loss from equity method investments	1,819,000	0	0
Ownership interest	25.00%						25.00%				25.00%	25.00%
Equity investments	22,507,000	0										22,507,000
Payments for equity method investments											20,700,000
Mammoth Energy Partners LP [Member]
Schedule of Equity Method Investments [Line Items]
(Income) loss from equity method investments	201,000	0	0									84,500,000
Ownership interest	30.50%											30.50%
Equity Method Investments, Fair Value Disclosure	143,500,000											143,500,000
Equity investments	143,973,000	0										143,973,000
LIBOR [Member] \| Bison Drilling And Field Services LLC [Member] \| Minimum [Member]
Schedule of Equity Method Investments [Line Items]
Loans receivable, basis spread on variable rate																	0.28%
Prime Rate [Member] \| Muskie Holdings LLC [Member]
Schedule of Equity Method Investments [Line Items]
Loans receivable, basis spread on variable rate																		2.50%
Subsequent Event [Member] \| Coronado Midstream LLC [Member] \| Windsor Midstream LLC [Member]
Schedule of Equity Method Investments [Line Items]
Property, Plant and Equipment, Estimated Sale Price													600,000,000
Income From Equity Method Investments [Member] \| Tatex Thailand III LLC [Member]
Schedule of Equity Method Investments [Line Items]
(Income) loss from equity method investments	$ (12,100,000)