Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2014

Summary of Significant Accounting Policies

Schedule of changes in the asset retirement obligation

	Years ended December 31,
(Thousands of dollars)	2014			2013
Beginning balance	$	15,578		$	14,315
Accretion expense	1,263			1,177
Disposals	(114		)	-
Liability for additional lagoons placed in service	-			86
Ending balance	$	16,727		$	15,578

Schedule of amounts paid for interest and income taxes

	Years ended December 31,
(Thousands of dollars)	2014		2013		2012
Interest	$	20,177	$	11,119	$	11,674
Income taxes (net of refunds)	135,393		59,899		69,760

Schedule of non-cash transactions resulting from the deconsolidation

(Thousands of dollars)
Decrease in net working capital	$	21,070
Increase in investment in and advances to affiliates	(74,142		)
Decrease in fixed assets	16,038
Decrease in goodwill	28,372
Decrease in other intangible assets, net (not subject to amortization)	17,000
Decrease in noncontrolling interest	(151		)
Gain on sale of controlling interest in subsidiary	65,955
Net proceeds from sale of controlling interest in subsidiary	$	74,142