Condensed Consolidated Balance Sheets (USD $) In Thousands	Sep. 30, 2011	Dec. 31, 2010
CURRENT ASSETS:
Cash and cash equivalents	$ 309,771	$ 342,237
Trade receivables	144,201	112,942
Other receivables	2,336	2,537
Due from affiliates		1,635
Inventories	45,835	31,548
Advance royalties	4,812	4,812
Prepaid expenses and other assets	1,716	10,363
Total current assets	508,671	506,074
PROPERTY, PLANT AND EQUIPMENT:
Property, plant and equipment, at cost	1,838,660	1,598,130
Less accumulated depreciation, depletion and amortization	(750,586)	(648,883)
Total property, plant and equipment, net	1,088,074	949,247
OTHER ASSETS:
Advance royalties	30,740	27,439
Equity investments in affiliates	37,119
Other long-term assets	17,231	21,312
Total other assets	85,090	48,751
TOTAL ASSETS	1,681,835	1,504,072
CURRENT LIABILITIES:
Accounts payable	86,796	63,934
Due to affiliates	514	573
Accrued taxes other than income taxes	18,094	13,916
Accrued payroll and related expenses	37,405	30,773
Accrued interest	6,644	2,491
Workers' compensation and pneumoconiosis benefits	8,521	8,518
Current capital lease obligations	724	295
Other current liabilities	18,529	16,780
Current maturities, long-term debt	18,000	18,000
Total current liabilities	195,227	155,280
LONG-TERM LIABILITIES:
Long-term debt, excluding current maturities	686,000	704,000
Pneumoconiosis benefits	49,106	45,039
Accrued pension benefit	10,489	13,296
Workers' compensation	70,619	59,796
Asset retirement obligations	56,655	56,045
Due to affiliates		682
Long-term capital lease obligations	2,666	165
Other liabilities	3,568	12,549
Total long-term liabilities	879,103	891,572
Total liabilities	1,074,330	1,046,852
COMMITMENTS AND CONTINGENCIES
PARTNERS' CAPITAL:
Limited Partners - Common Unitholders 59,863,000 units outstanding	393,519	330,346
Accumulated other comprehensive loss	(8,039)	(8,138)
Total AHGP Partners' Capital	385,480	322,208
Noncontrolling interests	222,025	135,012
Total Partners' Capital	607,505	457,220
TOTAL LIABILITIES AND PARTNERS' CAPITAL	$ 1,681,835	$ 1,504,072