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Property and Equipment
 12 Months Ended
Dec. 31, 2016
Property and Equipment  
Property and Equipment

5. Property and Equipment

Property and equipment is stated at cost and consisted of the following:

 

 

 

 

 

 

 

 

 

 

    

 

December 31,

 

 

 

 

2016

 

2015

 

 

 

 

(In thousands)

 

Oil and gas properties:

 

 

 

 

 

 

 

 

Proved properties

 

 

$
1,385,331

 

$
1,337,215

 

Unproved properties

 

 

 
919,056

 

 
593,510

 

Support equipment and facilities

 

 

 
1,386,448

 

 
1,241,943

 

Total oil and gas properties

 

 

 
3,690,835

 

 
3,172,668

 

Accumulated depletion

 

 

 
(989,946)

 

 
(858,442)

 

Oil and gas properties, net

 

 

 
2,700,889

 

 
2,314,226

 

 

 

 

 

 

 

 

 

 

Other property

 

 

 
37,186

 

 
34,807

 

Accumulated depreciation

 

 

 
(29,183)

 

 
(26,194)

 

Other property, net

 

 

 
8,003

 

 
8,613

 

 

 

 

 

 

 

 

 

 

Property and equipment, net

 

 

$
2,708,892

 

$
2,322,839

 

 

We recorded depletion expense of $131.5 million, $146.6 million and $188.3 million for the years ended December 31, 2016,  2015 and 2014, respectively.