v3.3.1.900
RELATED PARTY TRANSACTIONS (Tables)
 12 Months Ended
Dec. 31, 2015
Related Party Transactions [Abstract]  
Schedule of Related Party Transactions [Text Block]
The following table summarizes information pertaining to related party transactions:
 
Year Ended December 31,
 
2015
 
2014
 
2013
 
(Thousands of Dollars)
Revenues
$
—

 
$
929

 
$
14,897

Operating expenses
$
135,565

 
$
125,736

 
$
122,677

General and administrative expenses
$
66,769

 
$
66,910

 
$
58,602

Interest income
$
—

 
$
1,055

 
$
6,113

Revenues included in discontinued operations, net of tax
$
—

 
$
528

 
$
3,720

Expenses included in discontinued operations, net of tax
$
2

 
$
1,680

 
$
6,051