Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Current assets
Cash and cash equivalents	$ 5,099	$ 2,934
Accounts receivable	133	277
Accounts receivable - related entities	6,719	6,700
Prepaid expenses	1,193	931
Fair value of commodity derivative instruments	226	3,044
Total current assets	13,370	13,886
Oil and natural gas properties and related equipment
Oil and natural gas properties, equipment and facilities (successful efforts method)	112,476	112,173
Gathering and transportation assets	186,941	186,406
Less: accumulated depreciation, depletion, amortization and impairment	(144,189)	(100,245)
Oil and natural gas properties and equipment, net	155,228	198,334
Other assets
Intangible assets, net	145,246	158,706
Fair value of commodity derivative instruments		876
Equity investments	100,311	114,465
Other non-current assets	285	418
Total assets	414,440	486,685
Current liabilities
Accounts payable and accrued liabilities	5,347	4,678
Accounts payable and accrued liabilities - related entities	631	5,641
Royalties payable	359	359
Short-term debt, net of debt issuance costs	39,374
Fair value of commodity derivative instruments	985	6
Other liabilities		125
Total current liabilities	46,696	10,809
Other liabilities
Long term accrued liabilities - related entities	4,892
Asset retirement obligation	6,898	6,200
Long-term debt, net of debt issuance costs	109,437	178,582
Class C Preferred Units	281,688
Other liabilities	629	5,857
Total other liabilities	403,544	190,639
Total liabilities	450,240	201,448
Commitments and contingencies (See Note 13)
Mezzanine equity
Class B Preferred Units, zero and 31,310,896 units issued and outstanding as of December 31, 2019 and 2018, respectively		349,857
Partners' deficit
Common units, 20,087,462 and 16,486,239 units issued and outstanding as of December 31, 2019 and 2018, respectively	(35,800)	(64,620)
Total partners' deficit	(35,800)	(64,620)
Total liabilities and partners' deficit	$ 414,440	$ 486,685