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Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified | Dec. 31, 2011 | Dec. 31, 2010
--- | --- | ---
Current assets: |  |
Cash and cash equivalents | $ 214,922 | $ 95,506
Accounts receivable, net of allowance for doubtful accounts | 30,923 | 26,195
Accounts receivable - affiliates | 10,138 | 7,915
Other | 832 | 910
Total current assets | 256,815 | 130,526
Land | 24,534 | 24,543
Plant and equipment, net | 46,185 | 62,348
Coal and other mineral rights, net | 1,257,501 | 1,281,636
Intangible assets, net | 75,164 | 161,931
Loan financing costs, net | 4,846 | 2,436
Other assets | 604 | 616
Total assets | 1,665,649 | 1,664,036
Current liabilities: |  |
Accounts payable and accrued liabilities | 2,366 | 1,388
Accounts payable - affiliates | 375 | 499
Obligation related to acquisition | 500 | 0
Current portion of long-term debt | 30,801 | 31,518
Accrued incentive plan expenses - current portion | 8,374 | 6,788
Property, franchise and other taxes payable | 6,316 | 6,926
Accrued interest | 10,761 | 9,811
Total current liabilities | 59,493 | 56,930
Deferred revenue | 113,303 | 109,509
Accrued incentive plan expenses | 11,670 | 11,347
Long-term debt | 836,268 | 661,070
Partners' capital: |  |
Common units outstanding: (106,027,836) | 629,253 | 806,529
General partner's interest | 10,517 | 14,132
Non-controlling interest | 5,639 | 5,065
Accumulated other comprehensive loss | (493) | (546)
Total partners' capital | 644,915 | 825,180
Total liabilities and partners' capital | $ 1,665,649 | $ 1,664,036

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