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Quarterly report pursuant to Section 13 or 15(d)

Lease Obligations

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Lease Obligations
3 Months Ended
Mar. 31, 2012
Lease Obligations [Abstract] Ìý
Lease Obligations

NOTE 10 – LEASE OBLIGATIONS

We lease certain mining, production and other equipment under operating and capital leases. The leases are for varying lengths, generally at market interest rates and contain purchase and/or renewal options at the end of the terms. Our operating lease expense was $6.3 million for the three months ended March 31, 2012, compared with $5.8 million for the same period in 2011.

Future minimum payments under capital leases and non-cancellable operating leases at March 31, 2012 are as follows:

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