Other Long-term Liabilities (Tables)

3 Months Ended

Mar. 31, 2013

Leases [Abstract]

Schedule of Capital Leased Asssets

Compressor equipment	$	37,199
Less: Accumulated amortization		(14,676)
Net assets under capital leases	$	22,523
The following are the minimum lease payments to be made in each of the following years indicated for the capital leases in effect as of March 31, 2013 (in thousands):

Schedule of Future Minimum Lease Payments for Capital Leases

Fiscal Year
2013	$	3,437
2014		4,582
2015		4,582
2016		4,582
2017		6,910
Thereafter		5,189
Less: Interest		(4,827)
Net minimum lease payments under capital lease		24,455
Less: Current portion of net minimum lease payments		(4,448)
Long-term portion of net minimum lease payments	$	20,007