STATEMENTS OF CASH FLOWS (Tables)

3 Months Ended

Mar. 31, 2013

STATEMENTS OF CASH FLOWS [Abstract]

Changes in current assets and liabilities

	Three Months Ended March 31,
	2013			2012
	(Thousands of Dollars)
Decrease (increase) in current assets:
Receivable from related parties	$	(6,298	)	$	(8,186	)
Income tax receivable	(23		)	25
Other receivables	(158		)	(1,036		)
Other current assets	15			(11		)
Increase (decrease) in current liabilities:
Accounts payable	(601		)	104
Accrued compensation expense	4,315			2,103
Accrued liabilities	(41		)	(148		)
Taxes other than income tax	(992		)	(847		)
Changes in current assets and liabilities	$	(3,783	)	$	(7,996	)

Cash flows related to interest and income tax

	Three Months Ended March 31,
	2013		2012
	(Thousands of Dollars)
Cash paid for interest	$	96	$	105
Cash refunded for income tax	$	—	$	(20	)