v3.24.2
UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)
 9 Months Ended
Jun. 30, 2024
Jun. 30, 2023
CASH FLOWS FROM OPERATING ACTIVITIES:    
Net income $ 268,689,000 $ 356,478,000
Adjustments to reconcile net income to net cash provided by operating activities:    
Depreciation and amortization 296,352,000 287,721,000
Asset impairment charges 0 12,097,000
Provision for credit loss (213,000) 2,165,000
Stock-based compensation 23,777,000 23,884,000
Gain on investment securities (102,000) (6,123,000)
Gain on reimbursement of drilling equipment (24,687,000) (37,940,000)
Other (gain) loss on sale of assets 2,718,000 (394,000)
Deferred income tax expense (benefit) (23,634,000) 4,197,000
Other 3,011,000 3,960,000
Change in assets and liabilities    
Accounts receivable (6,936,000) 6,529,000
Inventories of materials and supplies (20,595,000) (13,899,000)
Prepaid expenses and other (4,042,000) (27,589,000)
Other noncurrent assets (20,165,000) (3,413,000)
Accounts payable 21,959,000 24,408,000
Accrued liabilities 7,744,000 (15,366,000)
Deferred income tax liability 390,000 (695,000)
Other noncurrent liabilities (8,359,000) 2,980,000
Net cash provided by operating activities 515,907,000 619,000,000
CASH FLOWS FROM INVESTING ACTIVITIES:    
Capital expenditures (389,095,000) (281,790,000)
Purchase of short-term investments (148,451,000) (102,140,000)
Purchase of long-term investments (9,167,000) (18,813,000)
Proceeds from sale of short-term investments 152,034,000 148,651,000
Insurance proceeds from involuntary conversion 5,533,000 0
Proceeds from asset sales 35,148,000 63,048,000
Net cash used in investing activities (353,998,000) (191,044,000)
CASH FLOWS FROM FINANCING ACTIVITIES:    
Dividends paid (126,417,000) (152,579,000)
Payments for employee taxes on net settlement of equity awards (12,176,000) (14,410,000)
Payment of contingent consideration from acquisition of business (6,250,000) (250,000)
Share repurchases (51,302,000) (247,213,000)
Other 0 (540,000)
Net cash used in financing activities (196,145,000) (414,992,000)
Net increase (decrease) in cash and cash equivalents and restricted cash (34,236,000) 12,964,000
Cash and cash equivalents and restricted cash, beginning of period 316,238,000 269,009,000
Cash and cash equivalents and restricted cash, end of period 282,002,000 281,973,000
Cash paid/(received) during the period:    
Interest paid 8,150,000 8,958,000
Income tax paid 139,594,000 155,725,000
Income tax received 0 (26,654,000)
Payments for operating leases 10,235,000 9,049,000
Non-cash operating and investing activities:    
Change in accounts payable and accrued liabilities related to purchases of property, plant and equipment $ (9,052,000) $ 2,031,000