Condensed Consolidated Statements of Operations and Comprehensive Income (Loss) (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
REVENUES
Revenues	$ 141,497	$ 110,192
OPERATING EXPENSES
Lease operating	7,525	9,390
Production and ad valorem taxes	2,848	2,445
Brokered natural gas and marketing expense	9,459	48
Depreciation, depletion, amortization and accretion	29,897	31,311
Exploration	16,789	15,278
General and administrative	28,930	9,757
(Gain) loss on sale of assets	2	(267)
Other expense	24
Total operating expenses	136,642	95,651
OPERATING INCOME	4,855	14,541
OTHER INCOME (EXPENSE)
Loss on derivative instruments	(4,931)	(4,215)
Interest expense, net	(13,840)	(12,952)
Total other income (expense), net	(18,771)	(17,167)
LOSS FROM CONTINUING OPERATIONS BEFORE INCOME TAXES	(13,916)	(2,626)
LOSS FROM CONTINUING OPERATIONS	(13,916)	(2,626)
Loss from discontinued operations, net of income tax	(182)
NET LOSS	$ (14,098)	$ (2,626)
NET LOSS PER COMMON SHARE
Basic	$ (0.55)	$ (0.13)
Diluted	$ (0.55)	$ (0.13)
WEIGHTED AVERAGE COMMON SHARES OUTSTANDING
Basic	25,564	19,563
Diluted	25,564	19,563
Oil and Gas [Member]
REVENUES
Revenues	$ 131,828	$ 110,184
Brokered Natural Gas and Marketing Revenue [Member]
REVENUES
Revenues	9,530	8
Other Revenue [Member]
REVENUES
Revenues	139
Natural Gas, Gathering, Transportation, Marketing and Processing [Member]
OPERATING EXPENSES
Transportation, gathering and compression	$ 41,168	$ 27,689