v3.26.1
Property, Plant and Equipment, net and Assets Held for Sale
 6 Months Ended
Jun. 30, 2026
Property, Plant, and Equipment [Abstract]  
Property, Plant and Equipment, net and Assets Held for Sale Property, Plant and Equipment, net and Assets Held for Sale     
Property, plant and equipment, net includes the following (in thousands):
June 30,December 31,
Useful Life20262025
Aviation equipment(a)
3-10 years
$75,509 $43,498 
Machinery and equipment
7-20 years
70,307 53,774 
Buildings and leasehold improvements
15-39 years
29,806 30,100 
Drilling rigs and directional drilling equipment
3-15 years
12,758 13,062 
Rail improvements
10-20 years
11,759 11,759 
Vehicles, trucks and trailers
5-10 years
11,372 13,044 
LandN/A6,025 6,025 
Other property, plant and equipment
3-15 years
6,412 6,721 
223,948 177,983 
Equipment not yet placed in service27,811 25,970 
251,759 203,953 
Less: Accumulated depreciation(b)
101,850 97,856 
Total property, plant and equipment, net$149,909 $106,097 
(a)    This equipment relates to assets leased and available to be leased to customers under operating leases.
(b)    Includes accumulated depreciation of $10.6 million and $5.7 million at June 30, 2026 and December 31, 2025, respectively, related to assets under operating leases.

Depreciation, depletion, amortization and accretion
A summary of depreciation, depletion, amortization and accretion is below (in thousands):
Three Months Ended June 30,Six Months Ended June 30,
2026202520262025
Depreciation$4,352 $2,233 $7,783 $4,269 
Amortization14 14 28 27 
Depletion and accretion268 580 293 614 
Depreciation, depletion, amortization and accretion$4,634 $2,827 $8,104 $4,910 

Assets Held for Sale
The Company’s assets held for sale consist solely of its contract drilling assets, which were classified as held for sale during the first quarter of 2025 pursuant to a plan to divest these assets. The Company continues to actively market the assets at a price that is reasonable in relation to their current fair value and remains committed to its plan of sale. At June 30, 2026 and December 31, 2025, assets held for sale totaled $2.2 million and $4.3 million and were recorded in “current assets held for sale” on the unaudited condensed consolidated balance sheets. These assets are measured at the lower of their carrying amount or fair value less costs to sell, and no impairment was recognized during the three and six months ended June 30, 2026.