Quarterly report pursuant to Section 13 or 15(d)

Property and equipment

v3.10.0.1
Property and equipment
9 Months Ended
Sep. 30, 2018
Property, Plant and Equipment [Abstract]  
Property and equipment
Property and equipment
 
Property and equipment is comprised of the following:
 
 
 
September 30,
 
December 31,
 
 
2018
 
2017
 
 
(In thousands)
Proved oil and natural gas properties
 
$
722,284

 
$
423,611

Unproved oil and natural gas properties
 
124,742

 
121,690

Land
 
1,558

 
406

Less: accumulated DD&A
 
(218,198
)
 
(114,375
)
    Total oil and natural gas properties (successful efforts), net
 
630,386

 
431,332

Other property and equipment
 
5,759

 
4,345

Less: accumulated DD&A
 
(3,287
)
 
(3,062
)
    Total other property and equipment
 
2,472

 
1,283

Total property and equipment, net
 
$
632,858

 
$
432,615


Depreciation, depletion, amortization, and accretion expense (“DD&A”) related to oil and natural gas properties was $47.1 million and $8.2 million for the three months ended September 30, 2018 and 2017, respectively, and $103.8 million and $25.7 million for the nine months ended September 30, 2018 and 2017, respectively. Depreciation and amortization expense related to other property and equipment was $0.2 million and $0.1 million for the three months ended September 30, 2018 and 2017, respectively, and $0.5 million and $0.3 million for the nine months ended September 30, 2018 and 2017, respectively. No impairment charges related to proved or unproved oil and natural gas properties were recorded for the three or nine months ended September 30, 2018 and 2017. Capitalized costs included in proved oil and natural gas properties not subject to DD&A totaled $46.2 million at September 30, 2018 and $57.2 million at December 31, 2017.