Segment Information (Tables)

9 Months Ended

Sep. 30, 2013

Segment information for our reportable segments

The following table reflects activity related to our reportable segments (in millions):



	Refining		Retail		Ethanol			Corporate			Total
Three months ended September 30, 2013:
Operating revenues from external customers	$	34,747	$	—	$	1,390		$	—		$	36,137
Intersegment revenues	—		—		16			—			16
Operating income (loss)	600		—		113			(181		)	532

Three months ended September 30, 2012:
Operating revenues from external customers	30,543		3,092		1,091			—			34,726
Intersegment revenues	2,348		—		15			—			2,363
Operating income (loss)	1,528		41		(73		)	(187		)	1,309

Nine months ended September 30, 2013:
Operating revenues from external customers	95,864		3,896		3,885			—			103,645
Intersegment revenues	2,876		—		86			—			2,962
Operating income (loss)	2,733		81		222			(635		)	2,401

Nine months ended September 30, 2012:
Operating revenues from external customers	92,181		9,089		3,285			—			104,555
Intersegment revenues	6,806		—		75			—			6,881
Operating income (loss)	2,773		253		(59		)	(541		)	2,426

Total assets by reportable segment were as follows (in millions):



	September 30, 2013		December 31, 2012
Refining	$	43,035	$	39,490
Retail	—		2,043
Ethanol	879		929
Corporate	2,379		2,015
Total assets	$	46,293	$	44,477

- Definition

Tabular disclosure of the profit or loss and total assets for each reportable segment. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss.

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