Joint Interest and Other Receivables

3 Months Ended

Mar. 31, 2013

Joint Interest and Other Receivables

Joint Interest and Other Receivables

4. Joint Interest and Other Receivables

        Joint interest and other receivables result primarily from billing shared costs under the respective operating agreements to the Company's partners. These are usually settled within 30 days of the invoice date.

	March 31, 2013		December 31, 2012
	($ in thousands)
Partners in the U.S. Gulf of Mexico	$	50,161	$	52,439
Partners in West Africa		3,186		2,185
Accrued interest on investment securities		11,209		3,647
Vendors' receivables		3,789		1,526
Other		3,342		1,795
	$	71,687	$	61,592