Deferred Revenue from Volumetric Production Payment (Details) (USD $)	1 Months Ended	3 Months Ended		12 Months Ended	0 Months Ended
	Mar. 31, 2012 partnership	Mar. 31, 2014 Boe	Mar. 31, 2013	Dec. 31, 2013	Mar. 14, 2012 Southwest Royalties, Inc. Limited partnerships Boe
Deferred Revenue Arrangement [Line Items]
Number of limited partnerships involved in the mergers	24
Upfront cash proceeds under VPP					$ 44,400,000
Deferred future advances under VPP					4,700,000
Barrels of oil equivalents of future oil and gas production covered by a term overriding royalty interest conveyed to a third party under the terms of the VPP (in BOE)					725,000
Changes in deferred revenue from the VPP
Beginning of period		29,770,000	37,184,000	37,184,000
Deferred revenue from VPP		296,000		1,332,000
Amortization of deferred revenue from VPP		(2,010,000)	(2,274,000)	(8,746,000)
End of period		$ 28,056,000		$ 29,770,000
Remaining obligation (in BOE)		456,000