Immaterial Correction of Prior Period Financial Statements

6 Months Ended

Jun. 30, 2013

Accounting Changes and Error Corrections [Abstract]

Immaterial Correction of Prior Period Financial Statements

Immaterial Correction of Prior Period Financial Statements

During the three months ended June 30, 2013, the Company determined certain immaterial corrections were required for previously-issued financial statements as discussed below. The corrections did not impact the Company’s operating income and were not considered material to the Company’s revenues and costs for the applicable periods.

The Company determined that revenues and purchased gas costs related to a new processing arrangement were improperly reduced from revenue and purchased gas costs which resulted in equal understatements of revenues and purchased gas costs in its previously-issued financial statements for the three and six months ended June 30, 2012. As a result both revenues and purchased gas were understated by $43.2 million and $97.5 million for the three and six months ended June 30, 2012, respectively. The following table reflects the revenues, purchased gas costs and total operating costs and expenses as previously reported and as adjusted for the three and six months ended June 30, 2012 (in thousands):

	Three Months Ended June 30, 2012		Six Months Ended June 30, 2012
As previously reported:
Total revenues	$	351,194	$	722,903
Purchased gas, NGLs and crude oil	$	260,890	$	532,846
Total operating costs and expenses	$	332,813	$	682,449
Operating income	$	18,381	$	40,454
As adjusted:
Total revenues	$	394,402	$	820,361
Purchased gas, NGLs and crude oil	$	304,098	$	630,304
Total operating costs and expenses	$	376,021	$	779,907
Operating income	$	18,381	$	40,454