Investments (Tables)

9 Months Ended

Sep. 30, 2012

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Schedule Of Investments

At September 30, 2012 and December 31, 2011, we had the following investments:

			Carrying Value
	Approximate Ownership %	Accounting Method	September 30, 2012		December 31, 2011
			($ in millions)
Chesapeake Midstream Partners, L.P.	—	Equity	$	—	$	987
FTS International, Inc.	30%	Equity	201		235
Chaparral Energy, Inc.	20%	Equity	144		143
Sundrop Fuels, Inc.	50%	Equity	112		34
Clean Energy Fuels Corp.	—	Cost	100		50
Twin Eagle Resource Management, LLC	30%	Equity	30		20
Clean Energy Fuels Corp.	1%	Fair Value	13		12
Gastar Exploration Ltd.	10%	Fair Value	11		22
Other	—	—	36		28
Total investments			$	647	$	1,531

Investments Held for Sale

Pursuant to our reclassification of certain assets and liabilities to held for sale, the following investments held by our midstream business have been identified as investments held for sale.

			Carrying Value
	Approximate Ownership %	Accounting Method	September 30, 2012		December 31, 2011
			($ in millions)
Utica East Ohio Midstream, LLC	59%	Equity	$	75	$	—
Ranch Westex JV, LLC	33%	Equity	32		—
Glass Mountain Pipeline, LLC	25%	Equity	16		—
Total investments held for sale			$	123	$	—