Revenue Recognition (Tables)

12 Months Ended

Dec. 31, 2018

Revenue Recognition [Abstract]

Schedule of disaggregation of revenue

In the following table, revenue for the year ended December 31, 2018, is disaggregated by primary region within the United States and major product line. As noted above, we operate as one reportable segment.

(in thousands)
Type	Appalachian and Illinois Basin		Ventura Basin		Total
Natural gas sales	$	14,768	$	1,250	$	16,018
Natural gas liquids sales		-		1,143		1,143
Oil sales		4,963		25,928		30,891
Total natural gas, natural gas liquids, and oil revenue	$	19,731	$	28,321	$	48,052

In the following table, revenue for the year ended December 31, 2017, is disaggregated by primary region within the United States and major product line. As noted above, we operate as one reportable segment.

(in thousands)
Type	Appalachian and Illinois Basin		Ventura Basin		Total
Natural gas sales	$	15,298	$	-	$	15,298
Oil sales		4,213		-		4,213
Total natural gas and oil revenue	$	19,511	$	-	$	19,511