Condensed Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
CURRENT ASSETS:
Cash and cash equivalents	$ 300	$ 3,232
Accounts receivable:
Oil and natural gas sales	6,148us-gaap_AccountsReceivableNetCurrent	8,051us-gaap_AccountsReceivableNetCurrent
Other	496	4,070
Derivative financial instruments	22,944us-gaap_DerivativeAssetsCurrent	26,202us-gaap_DerivativeAssetsCurrent
Prepaids and other	570	652
Total current assets	30,458us-gaap_AssetsCurrent	42,207us-gaap_AssetsCurrent
Oil and natural gas properties, successful efforts method:
Proved properties	506,147	501,191
Accumulated depletion, depreciation, amortization and impairment	(101,742)	(93,896)
Total property and equipment, net	404,405	407,295
DERIVATIVE FINANCIAL INSTRUMENTS	5,081us-gaap_DerivativeAssetsNoncurrent	842us-gaap_DerivativeAssetsNoncurrent
OTHER ASSETS	4,005us-gaap_OtherAssetsNoncurrent	4,284us-gaap_OtherAssetsNoncurrent
Total assets	443,949us-gaap_Assets	454,628us-gaap_Assets
Accounts payable:
Trade	3,151us-gaap_AccountsPayableTradeCurrent	3,630us-gaap_AccountsPayableTradeCurrent
Related parties	1,089	3,989
Accrued liabilities	173us-gaap_AccruedLiabilitiesCurrent	397us-gaap_AccruedLiabilitiesCurrent
Total current liabilities	4,413us-gaap_LiabilitiesCurrent	8,016us-gaap_LiabilitiesCurrent
Derivative Liability, Noncurrent	818us-gaap_DerivativeLiabilitiesNoncurrent	0us-gaap_DerivativeLiabilitiesNoncurrent
OTHER LONG-TERM LIABILITIES	107us-gaap_OtherLiabilitiesNoncurrent	107us-gaap_OtherLiabilitiesNoncurrent
LONG-TERM DEBT	203,000us-gaap_LongTermDebtNoncurrent	205,000us-gaap_LongTermDebtNoncurrent
ASSET RETIREMENT OBLIGATIONS	7,476	7,363
Commitments and Contingencies
Partnership equity:
General partner interest	1,233us-gaap_GeneralPartnersCapitalAccount	1,328us-gaap_GeneralPartnersCapitalAccount
Limited partners- 29,655,804 and 29,166,112 units issued and outstanding as of March 31, 2015 and December 31, 2014, respectively.	226,902us-gaap_LimitedPartnersCapitalAccount	232,814us-gaap_LimitedPartnersCapitalAccount
Total equity	228,135us-gaap_PartnersCapital	234,142us-gaap_PartnersCapital
Total liabilities and equity	$ 443,949	$ 454,628

Amount due from customers, clients, or other third-parties, or arising from transactions not separately disclosed, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), net of allowances established for the purpose of reducing such receivables to an amount that approximates their net realizable value.

No definition available.