v3.26.1
PROPERTY, PLANT AND EQUIPMENT (Tables)
 9 Months Ended
Jun. 30, 2026
Property, Plant, and Equipment [Abstract]  
Schedule of Property, Plant and Equipment
Property, plant and equipment as of June 30, 2026 and September 30, 2025 consisted of the following:
(in thousands)Estimated Useful LivesJune 30, 2026September 30, 2025
Drilling services equipment
2 - 15 years
$7,728,614 $8,168,906 
Tubulars
4 years
616,790 597,933 
Real estate properties
10 - 45 years
5,613 8,223 
Other
2 - 23 years
634,193 620,908 
Construction in progress1
161,097 182,942 
9,146,307 9,578,912 
Accumulated depreciation(5,280,975)(5,265,838)
Property, plant and equipment, net$3,865,332 $4,313,074 
Assets held-for-sale$12,659 $15,231 
(1)Included in construction in progress are costs for projects in progress to upgrade or refurbish certain rigs in our existing fleet. Additionally, we include other advances for capital maintenance purchase-orders that are open/in process. As these various projects are completed, the costs are then classified to their appropriate useful life category.
Schedule of Assets Held-for-Sale
The following is a summary of the changes in the balance (in thousands) of our assets held-for-sale for the period indicated below:
Balance at September 30, 2025
$15,231 
Additions17,491 
Disposals(17,283)
Impairment expense
(2,780)
Balance at June 30, 2026
$12,659