Accounts Receivable

6 Months Ended

Jun. 30, 2018

Accounts Receivable Net [Abstract]

Accounts Receivable

12. Accounts Receivable

Components of accounts receivable include the following:

	June 30, 2018			December 31, 2017
Oil, gas and NGL sales	$	597		$	559
Joint interest billings		165			134
Marketing revenues		357			278
Other		32			29
Gross accounts receivable		1,151			1,000
Allowance for doubtful accounts		(10	)		(11	)
Net accounts receivable	$	1,141		$	989