Accounts Receivable (Tables)

6 Months Ended

Jun. 30, 2012

Accounts Receivable [Abstract]

Schedule Of Components Of Accounts Receivable


	June 30, 2012	December 31, 2011
	(In millions)
Oil, gas and NGL sales....................................................................................	$ 668	$ 928
Joint interest billings........................................................................................	199	247
Marketing and midstream revenues............................................................	105	174
Other..................................................................................................................	47	39
Gross accounts receivable...........................................................................	1,019	1,388
Allowance for doubtful accounts.................................................................	(14)	(9)
Net accounts receivable..............................................................................	$ 1,005	$ 1,379