Organization and Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2018

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Disaggregation of Revenue

The following table includes a disaggregation of revenue by product including the effects of hedges in place (in thousands):

	Year Ended December 31,
	2018		2017		2016
Total oil sales	$	21,027	$	31,258	$	20,614
Total gas sales	50,768		60,922		37,963
Total ngl sales	15,303		16,107		8,090
Total oil and gas sales	$	87,099	$	108,287	$	66,667

Schedule of significant concentration risk

The following table identifies customers from whom the Company derived 10% or more of its oil and gas revenues during the years presented. Based on the availability of other customers, the Company does not believe the loss of any of these customers would have a significant effect on its business or financial condition.

	Year Ended December 31,
	2018	2017	2016
Superior Natural Gas	26%	29%	14%
Shell Trading Company	21%	24%	23%
Texla Energy Management	16%	(a)	(a)
Harvest Pipeline Company	12%	(a)	(a)
Laclede Energy Resources	(a)	(a)	17%
BG Group	(a)	(a)	10%

(a) Less than 10 percent