Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Current assets
Cash and cash equivalents	$ 486	$ 2,359
Accounts receivable:
Oil and natural gas sales	4,254	5,302
Other	83	233
Derivative financial instruments	348	0
Prepaids and other	288	512
Total current assets	5,459	8,406
Oil and natural gas properties, successful efforts method:
Proved properties	450,576	441,479
Other property and equipment	852	289
Accumulated depletion, depreciation, amortization and impairment	(203,723)	(176,551)
Total property and equipment, net	247,705	265,217
Derivative financial instruments	458	0
Other assets	1,983	2,663
Total Assets	255,605	276,286
Accounts payable:
Trade	257	256
Related parties	1,364	3,431
Derivative financial instruments	580	5,314
Accrued liabilities	498	146
Total current liabilities	2,699	9,147
Derivative financial instruments	0	2,495
Long-term debt	121,000	122,000
Other long term liabilities	81	93
Asset retirement obligations	12,119	11,331
Commitments and contingencies
Class A convertible preferred units - 11,627,906 issued and outstanding, respectively	19,970	19,570
Partnership equity
General partner interest	(376)	(248)
Limited partners- 29,944,796 and 29,912,230 units issued and outstanding, respectively	100,112	111,898
Total equity	99,736	111,650
Total liabilities, convertible preferred units and equity	$ 255,605	$ 276,286