Basis of Presentation (Tables)

12 Months Ended

Dec. 31, 2017

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Reconciliation of the Partnerships Asset Retirement Receivable

The following is a reconciliation of the Partnership’s asset retirement receivable-affiliate for the years indicated:



	2017		2016
Asset retirement receivable-affiliate, beginning of year	$	170,700	$	106,700
Asset retirement estimates withheld	147,100		64,000
Asset retirement receivable-affiliate, end of year	$	317,800	$	170,700

Schedule of Revenue by Major Customers

For the years ended December 31, 2017 and 2016, the Partnership had the following customers that individually accounted for greater than 10% of the Partnership’s natural gas revenues, excluding the impact of all financial derivative activity.



	Percentage of Revenue
Customer	2017		2016
Direct Energy Business LLC	73	%	—	%
Dominion Field Services, Inc.	11	%	15	%
Hess Energy Marketing, LLC	—	%	52	%
Atmos Energy Marketing, LLC	—	%	24	%
Other (no single customer accounts for more than 10% of revenues)	16	%	9	%
Total	100	%	100	%

DGOC Series 18C LP 10-K