Revenue Recognition (Tables)

6 Months Ended

Jun. 30, 2018

Revenue Recognition [Abstract]

Schedule of disaggregation of revenue

For the three months ended June 30, 2018:

(in thousands)
Type	Appalachia and  Illinois Basin		Ventura Basin		Total
Natural gas sales	$	3,114	$	409	$	3,523
Natural gas liquids sales		-		550		550
Oil sales		2,377		5,714		8,091
Total revenue	$	5,491	$	6,673	$	12,164

For the six months ended June 30, 2018:

(in thousands)
Type	Appalachia and  Illinois Basin		Ventura Basin		Total
Natural gas sales	$	6,919	$	543	$	7,462
Natural gas liquids sales		-		713		713
Oil sales		2,624		8,450		11,074
Total revenue	$	9,543	$	9,706	$	19,249