TRADE RECEIVABLES (Tables)

3 Months Ended

Mar. 31, 2014

TRADE RECEIVABLES [Abstract]

Trade Receivables

Trade receivables, net, at March 31, 2014, and December 31, 2013, consisted of the following:

	March 31, 2014			December 31, 2013
	(thousands of dollars)
Trade receivables	$	24,659		$	22,279
Less allowance for doubtful accounts		(210	)		(210	)
Trade receivables, net	$	24,449		$	22,069