Leases

The following table is a schedule of future minimum lease payments for office space and certain equipment leased by the Partnership, that had initial or remaining noncancelable lease terms in excess of one year as of December 31, 2011:



For the year ending December 31,	Operating
2012	$	2,684
2013	1,793
2014	1,163
2015	1,072
2016	956
Thereafter	2,629
Total minimum lease payments	$	10,297

On January 14, 2011, CDM exercised an early buyout option on a Master Lease Agreement between CDM and Caterpillar Financial Services Corporation to purchase the leased compression equipment for $9 million and terminated the agreement. The related annual rent expense of $1.2 million has been removed from the above table.

Total rent expense for operating leases, including those leases with terms of less than one year, was $3.2 million, $2.7 million, $2.4 million and $5.5 million, during the year ended December 31, 2011, the period from May 26, 2010 to December 31, 2010, the period from January 1, 2010 to May 25, 2010 and for the year ended December 31, 2009, respectively.