4. Goodwill

Changes in the carrying value of goodwill for the years ended December 31, 2011, 2010 and 2009 are as follows:

		(In thousands)
Balance at January 1, 2009	$	46,832
Consideration paid related to prior business acquisitions		4,767
Acquisition of Jacobs Ranch		62,102
Balance at December 31, 2009		113,701
Consideration paid related to prior business acquisitions		1,262
Balance at December 31, 2010		114,963
Consideration paid related to prior business acquisitions		829
Acquisition of ICG		480,311
Balance at December 31, 2011	$	596,103

Goodwill of $115.8 million has been allocated to the Company's Powder River Basin segment and goodwill of $480.3 million has allocated to the Company's Appalachia segment, for impairment testing purposes. The goodwill related to the acquisition of ICG is not expected to be deductible for income tax purposes; however, the remaining goodwill is expected to be deductible. The consideration paid related to prior business acquisitions represents ongoing adjustments to the purchase price of a previous acquisition resulting from a 2008 tax settlement.