Segment Information

6 Months Ended

Jun. 30, 2015

Segment Reporting [Abstract]

SEGMENT INFORMATION

9. SEGMENT INFORMATION

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

	Refining		Ethanol		Corporate			Total
Three months ended June 30, 2015:
Operating revenues from external customers	$	24,350	$	768	$	—		$	25,118
Intersegment revenues	—		37		—			37
Operating income (loss)	2,161		108		(191		)	2,078
Three months ended June 30, 2014:
Operating revenues from external customers	33,457		1,457		—			34,914
Intersegment revenues	—		9		—			9
Operating income (loss)	1,079		187		(181		)	1,085
Six months ended June 30, 2015:
Operating revenues from external customers	44,879		1,569		—			46,448
Intersegment revenues	—		65		—			65
Operating income (loss)	3,802		120		(349		)	3,573
Six months ended June 30, 2014:
Operating revenues from external customers	65,909		2,668		—			68,577
Intersegment revenues	—		34		—			34
Operating income (loss)	2,359		430		(353		)	2,436

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

	June 30, 2015		December 31, 2014
Refining	$	39,813	$	40,103
Ethanol	961		954
Corporate	6,825		4,493
Total assets	$	47,599	$	45,550