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GOODWILL (Tables)
 12 Months Ended
Dec. 31, 2015
Goodwill and Intangible Assets Disclosure [Abstract]  
Rollforward of goodwill by reportable segment
A rollforward of goodwill by reportable segment and in total follows.
 
Piceance/DJ Basins
 
Williston Basin
 
Marcellus Shale
 
Total
 
 
 
 
 
 
 
 
 
(In thousands)
Goodwill, January 1, 2014
$
45,478

 
$
257,572

 
$
16,211

 
$
319,261

Goodwill impairment
—

 
(54,199
)
 
—

 
(54,199
)
Goodwill, December 31, 2014
45,478

 
203,373

 
16,211

 
265,062

Goodwill impairment
(45,478
)
 
(203,373
)
 
—

 
(248,851
)
Goodwill, December 31, 2015
$
—

 
$
—

 
$
16,211

 
$
16,211

Accumulated goodwill impairments by reportable segment for those reporting units that have previously recognized goodwill follow.
 
December 31,
 
2015
 
2014
 
2013
 
 
 
 
 
 
 
(In thousands)
Accumulated goodwill impairment:
 
 
 
 
 
Piceance/DJ Basins
$
45,478

 
$
—

 
$
—

Williston Basin
257,572

 
54,199

 
—

Total accumulated goodwill impairment
$
303,050

 
$
54,199

 
$
—