COMMITMENTS AND CONTINGENCIES

12 Months Ended

Dec. 31, 2012

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies

COMMITMENTS AND CONTINGENCIES

We are subject to a number of claims of various amounts, which arise out of the normal course of business. In the opinion of management, the disposition of pending claims will not have a material adverse effect on our financial position, results of operations or cash flows.

Rent expense under all operating leases, was $1.0 million, $0.9 million and $0.8 million in 2012, 2011 and 2010, respectively. We lease certain equipment, vehicles and operating facilities under non-cancellable operating leases that expire on various dates through 2022. Future minimum lease payments under noncancelable operating leases are as follows (in millions):

2013	1,126
2014	1,079
2015	980
2016	875
2017	763
thereafter	1,348
	6,171

At December 31, 2012, firm commitments to vendors totaled $2.0 million.