14. Impairments

The following table summarizes impairment charges recorded during the periods presented:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2011		2010		2011		2010
Oil and gas properties	$	-	$	32,627	$	71,071	$	32,627
Other		-		2,500		-		3,624
	$	-	$	35,127	$	71,071	$	36,251

During the three months ended June 30, 2011, we recognized an impairment of our Arkoma Basin assets which was triggered by the expected disposition of these high-cost gas properties. As disclosed in Note 3, we completed the sale of these properties in August 2011. During the three and nine months ended September 30, 2010, we recognized impairment charges with respect to certain coal bed methane properties in the Mid-Continent region due to market declines in spot and future oil and gas prices, and also recognized impairment charges attributable to certain tubular inventory and well materials triggered primarily by declines in asset quality.