Segment Information (Tables)

3 Months Ended

Mar. 31, 2015

Segment information for our reportable segments

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



	Refining		Ethanol		Corporate			Total
Three months ended March 31, 2015:
Operating revenues from external customers	$	20,529	$	801	$	—		$	21,330
Intersegment revenues	—		28		—			28
Operating income (loss)	1,641		12		(158		)	1,495

Three months ended March 31, 2014:
Operating revenues from external customers	32,452		1,211		—			33,663
Intersegment revenues	—		25		—			25
Operating income (loss)	1,280		243		(172		)	1,351

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



	March 31, 2015		December 31, 2014
Refining	$	38,857	$	40,103
Ethanol	986		954
Corporate	5,898		4,493
Total assets	$	45,741	$	45,550

- 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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