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ACCRUED LIABILITIES

12 Months Ended

Dec. 31, 2011

Accrued Liabilities [Abstract]

Accrued Liabilities

ACCRUED LIABILITIES

Accrued liabilities consisted of the following:

	December 31,
	2011				2010
	(Thousands of Dollars)
Employee wages and benefit costs	$	24,325			$	21,216
Derivative liabilities	27,433				14,741
Unearned income	8,866				4,375
Environmental costs	3,312				2,659
Product imbalances	1,469				988
Other	5,865				13,974
Accrued liabilities	$	71,270			$	57,953

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- Definition

The entire disclosure for accounts payable, accrued expenses, and other liabilities that are classified as current at the end of the reporting period.

+ References

No definition available.

+ Details

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- Details

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