XML 23 R9.htm IDEA: XBRL DOCUMENT v3.3.0.814
Properties and Equipment, Net
 9 Months Ended
Sep. 30, 2015
Property, Plant and Equipment [Abstract]  
Properties and Equipment, Net
Properties and Equipment, Net
Properties and equipment, net are comprised of the following:
(In thousands)
 
September 30,
2015
 
December 31,
2014
Proved oil and gas properties
 
$
8,701,932

 
$
7,984,979

Unproved oil and gas properties
 
415,355

 
492,208

Gathering and pipeline systems
 
243,089

 
241,272

Land, building and other equipment
 
116,801

 
109,758

 
 
9,477,177

 
8,828,217

Accumulated depreciation, depletion and amortization
 
(4,335,773
)
 
(3,902,506
)
 
 
$
5,141,404

 
$
4,925,711


At September 30, 2015, the Company did not have any projects that had exploratory well costs capitalized for a period of greater than one year after drilling.