Biggest changeThis resulted in a non-cash impairment charge of $2.5 million recorded in Asset impairment charges within our Consolidated Statement of Operations during the fiscal year ended September 30, 2022, as the rigs aggregate net book value of $3.4 million exceeded the fair value of the rigs less estimated cost to sell of $0.9 million. 2023 FORM 10-K | 44 Table of Contents Other Operations Results of our other operations, excluding corporate selling, general and administrative costs, and corporate depreciation, are as follows: (in thousands) 2023 2022 % Change Operating revenues $ 77,296 $ 66,287 16.6 % Direct operating expenses 57,944 50,683 14.3 Depreciation 2,014 1,701 18.4 Selling, general and administrative expense 1,462 1,183 23.6 Operating income $ 15,876 $ 12,720 24.8 Operating Revenues We continue to use our Captive insurance companies to insure the deductibles for our domestic workers’ compensation, general liability, automobile liability claims programs, and medical stop-loss program and to insure the deductibles from the Company's international casualty and rig property programs.
Biggest changeOther Operations Results of our other operations, excluding corporate selling, general and administrative costs, and corporate depreciation, are as follows: (in thousands) 2024 2023 % Change Operating revenues $ 71,630 $ 77,296 (7.3) % Direct operating expenses 69,756 57,944 20.4 Depreciation 1,627 2,014 (19.2) Selling, general and administrative expense 1,606 1,462 9.8 Operating income (loss) $ (1,359) $ 15,876 (108.6) 2024 FORM 10-K | 51 Table of Contents Operating Revenues We continue to use our Captive insurance companies to insure the deductibles for our domestic workers’ compensation, general liability, automobile liability claims programs, and medical stop-loss program and to insure the deductibles from the Company's international casualty and rig property programs.
Management uses these metrics to analyze historical segment financial results and as the key inputs for forecasting and budgeting segment financial results.
Management uses these metrics to analyze historical segment financial results and as the key inputs for forecasting and budgeting segment financial results.
(2) Direct margin, which is considered a non-GAAP metric, is defined as operating revenues less direct operating expenses and is included as a supplemental disclosure because we believe it is useful in assessing and understanding our current operational performance, especially in making comparisons over time.
(2) Direct margin, which is considered a non-GAAP metric, is defined as operating revenues less direct operating expenses and is included as a supplemental disclosure because we believe it is useful in assessing and understanding our current operational performance, especially in making comparisons over time.
See — Non-GAAP Measurements below for a reconciliation of segment operating income (loss) to direct margin. (3) Defined as the number of contractual days we recognized revenue for during the period. (4) Active rigs generate revenue for the Company; accordingly, 'average active rigs' represents the average number of rigs generating revenue during the applicable time period.
See — Non-GAAP Measurements below for a reconciliation of segment operating income (loss) to direct margin. (3) Defined as the number of contractual days we recognized revenue for during the period. (4) Active rigs generate revenue for the Company; accordingly, 'average active rigs' represents the average number of rigs generating revenue during the applicable time period.
Management uses these metrics to analyze historical segment financial results and as the key inputs for forecasting and budgeting segment financial results.
Management uses these metrics to analyze historical segment financial results and as the key inputs for forecasting and budgeting segment financial results.
(2) Direct margin, which is considered a non-GAAP metric, is defined as operating revenues less direct operating expenses and is included as a supplemental disclosure because we believe it is useful in assessing and understanding our current operational performance, especially in making comparisons over time.
(2) Direct margin, which is considered a non-GAAP metric, is defined as operating revenues less direct operating expenses and is included as a supplemental disclosure because we believe it is useful in assessing and understanding our current operational performance, especially in making comparisons over time.
See — Non-GAAP Measurements below for a reconciliation of segment operating income (loss) to direct margin. (3) Defined as the number of contractual days we recognized revenue for during the period. (4) Active rigs generate revenue for the Company; accordingly, 'average active rigs' represents the average number of rigs generating revenue during the applicable time period.
See — Non-GAAP Measurements below for a reconciliation of segment operating income (loss) to direct margin. (3) Defined as the number of contractual days we recognized revenue for during the period. (4) Active rigs generate revenue for the Company; accordingly, 'average active rigs' represents the average number of rigs generating revenue during the applicable time period.
During the fiscal year ended September 30, 2023, we repurchased 6.5 million common shares at an aggregate cost of $249.0 million, including accrued excise tax of $1.8 million, resulting in a net cash outflow of $247.2 million. During the fiscal year ended September 30, 2022, we repurchased 3.2 million common shares at an aggregate cost of $77.0 million.
During the fiscal year ended September 30, 2023, we repurchased 6.5 million common shares at an aggregate cost of $249.0 million, including excise tax of $1.8 million, resulting in a net cash outflow $247.2 million. During the fiscal year ended September 30, 2022, we repurchased 3.2 million common shares at an aggregate cost of $77.0 million.
This gain was mainly comprised of a $27.4 million gain on our equity investment in ADNOC Drilling, partially offset against a $4.2 million loss on our investment in Tamboran; both of which were a result of fluctuations in the fair market value of the stocks.
This gain was mainly comprised of a $27.4 million gain on our equity investment in ADNOC Drilling, partially offset against a $4.2 million loss on our investment in Tamboran Corp.; both of which were a result of fluctuations in the fair market value of the stocks.
The capital budgets for calendar year 2024 have not yet been established by many of our customers; however, based upon the crude oil and natural gas pricing environment and many of our customers' desire to at least maintain their current production levels, we expect the level of capital spending and activity in calendar year 2024 to be similar to that experienced in calendar year 2023.
The capital budgets for calendar year 2025 have not yet been established by many of our customers; however, based upon the crude oil and natural gas pricing environment and many of our customers' desire to at least maintain their current production levels, we expect the level of capital spending and activity in calendar year 2025 to be similar to that experienced in calendar year 2024.
In June 2022, we settled a registered exchange offer (the “Registered Exchange Offer”) to exchange the 2031 Notes for new, SEC-registered notes that are substantially identical to the terms of the 2031 Notes, except that the offer and issuance of the new notes have been registered under the Securities Act and certain transfer restrictions, registration rights and additional interest provisions relating to the 2031 Notes do not apply to the new notes.
In June 2022, we settled a registered exchange offer (the “2022 Registered Exchange Offer”) to exchange the 2031 Notes for new, SEC-registered notes that are substantially identical to the terms of the 2031 Notes, except that the offer and issuance of the new notes have been registered under the Securities Act and certain transfer restrictions, registration rights and additional interest provisions relating to the 2031 Notes do not apply to the new notes.
We may seek to access the debt and equity capital markets from time to time to raise additional capital, increase liquidity as necessary, fund our additional purchases, exchange or redeem senior notes, or repay any amounts under the 2018 Credit Facility.
We may seek to access the debt and equity capital markets from time to time to raise additional capital, increase liquidity as necessary, fund our additional purchases, exchange or redeem senior notes, or repay any amounts under the Amended Credit Facility.
The Company financed the redemption of the 2025 Notes with the net proceeds from the offering of the 2031 Notes, together with cash on hand. The Company’s obligation to redeem the 2025 Notes was conditioned upon the prior consummation of the issuance of the 2031 Notes, which was satisfied on September 29, 2021.
The Company financed the redemption of the 2025 Notes with the net proceeds from the offering of the 2031 Notes (discussed below), together with cash on hand. The Company’s obligation to redeem the 2025 Notes was conditioned upon the prior consummation of the issuance of the 2031 Notes, which was satisfied on September 29, 2021.
We self‑insure a significant portion of expected losses relating to workers’ compensation, general liability, employer’s liability, auto liability, as well as other insurance coverages. Generally, deductibles range from $1 million to $10 million per occurrence depending on the coverage and whether a claim occurs outside or inside of the United States.
We self‑insure a significant portion of expected losses relating to workers’ compensation, general liability, employer’s liability, auto liability, and certain other insurance coverages. Generally, deductibles range from $1 million to $10 million per occurrence depending on the coverage and whether a claim occurs outside or inside of the United States.
ITEM 7. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS The following discussion should be read in conjunction with Part I of this Form 10‑K as well as the Consolidated Financial Statements and related notes thereto included in Part II, Item 8— “Financial Statements and Supplementary Data” of this Form 10‑K.
ITEM 7. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS The following discussion should be read in conjunction with Part I of this Form 10‑K as well as the Consolidated Financial Statements and related notes thereto included in Part II, Item 8— Financial Statements and Supplementary Data of this Form 10‑K.
Likewise, the Company believes that operating net working capital is useful to investors because it provides a means to evaluate the operating performance of the business using criteria that are used by our internal decision makers. Investing Activities Capital Expenditures Our capital expenditures were $395.5 million, $250.9 million and $82.1 million in fiscal years 2023, 2022 and 2021, respectively.
Likewise, the Company believes that operating net working capital is useful to investors because it provides a means to evaluate the operating performance of the business using criteria that are used by our internal decision makers. Investing Activities Capital Expenditures Our capital expenditures were $495.1 million, $395.5 million and $250.9 million in fiscal years 2024, 2023 and 2022, respectively.
During the fiscal year ended September 30, 2023, our activity was primarily driven by a $14.1 million equity investment in Tamboran Resources Limited, $4.1 million in debt and equity security investments in various geothermal energy companies, and $2.5 million investments in other equity securities.
Our activity during the fiscal year ended September 30, 2023, was driven by a $14.1 million equity investment in Tamboran Resources Corporation, $4.1 million in debt and equity security investments in various geothermal energy companies, and $2.5 million investments in other equity securities.
All of the 2031 Notes were exchanged in the Registered Exchange Offer.
All of the 2031 Notes were exchanged in the 2022 Registered Exchange Offer.
The following is a discussion of the critical accounting policies and estimates used in our financial statements. 2023 FORM 10-K | 49 Table of Contents Property, Plant and Equipment Property, plant and equipment, including renewals and betterments, are capitalized at cost, while maintenance and repairs are expensed as incurred.
The following is a discussion of the critical accounting policies and estimates used in our financial statements. 2024 FORM 10-K | 57 Table of Contents Property, Plant and Equipment Property, plant and equipment, including renewals and betterments, are capitalized at cost, while maintenance and repairs are expensed as incurred.
Operating net working capital was $239.6 million, $271.8 million and $129.9 million as of September 30, 2023, 2022 and 2021, respectively. This metric is considered a non-GAAP measure of the Company's liquidity. The Company considers operating net working capital to be a supplemental measure for presenting and analyzing trends in our cash flows from operations over time.
Operating net working capital was $236.6 million, $239.6 million and $271.8 million as of September 30, 2024, 2023 and 2022, respectively. This metric is considered a non-GAAP measure of the Company's liquidity. The Company considers operating net working capital to be a supplemental measure for presenting and analyzing trends in our cash flows from operations over time.
Direct margin is not a substitute for financial measures prepared in accordance with GAAP and should therefore be considered only as supplemental to such GAAP financial measures. 2023 FORM 10-K | 51 Table of Contents The following table reconciles direct margin to segment operating income (loss), which we believe is the financial measure calculated and presented in accordance with GAAP that is most directly comparable to direct margin.
Direct margin is not a substitute for financial measures prepared in accordance with GAAP and should therefore be considered only as supplemental to such GAAP financial measures. 2024 FORM 10-K | 59 Table of Contents The following table reconciles direct margin to segment operating income, which we believe is the financial measure calculated and presented in accordance with GAAP that is most directly comparable to direct margin.
See Note 6—Debt to our Consolidated Financial Statements. (2) See Note 4—Leases to our Consolidated Financial Statements. (3) See Note 15—Commitments and Contingencies to our Consolidated Financial Statements.
See Note 6—Debt to our Consolidated Financial Statements. (2) See Note 4—Leases to our Consolidated Financial Statements. (3) See Note 16—Commitments and Contingencies to our Consolidated Financial Statements.
This metric is calculated by dividing revenue days by total days in the applicable period (i.e., 365 days). (5) Defined as the number of rigs generating revenue at the applicable end date of the time period. Operating Revenues Operating revenues were $130.2 million and $125.5 million in the fiscal year ended September 30, 2023 and 2022, respectively.
This metric is calculated by dividing revenue days by total days in the applicable period (i.e., 366 days). (5) Defined as the number of rigs generating revenue at the applicable end date of the time period. Operating Revenues Operating revenues were $106.2 million and $130.2 million in the fiscal year ended September 30, 2024 and 2023, respectively.
Liquidity and Capital Resources Sources of Liquidity Our sources of available liquidity include existing cash balances on hand, cash flows from operations, and availability under the 2018 Credit Facility. Our liquidity requirements include meeting ongoing working capital needs, funding our capital expenditure projects, paying dividends declared, and repaying our outstanding indebtedness.
Liquidity and Capital Resources Sources of Liquidity Our sources of available liquidity include existing cash balances on hand, cash flows from operations, and availability under the Amended Credit Facility. Our liquidity requirements include meeting ongoing working capital needs, funding our capital expenditure projects, paying dividends declared, repaying our outstanding indebtedness, and funding the pending acquisition of KCA Deutag.
Results of Operations for the Fiscal Years Ended September 30, 2022 and 2021 A discussion of our results of operations for the fiscal year ended September 30, 2022 compared to the fiscal year ended September 30, 2021 is included in Part II, Item 7— "Management's Discussion and Analysis of Financial Condition and Results of Operations" of our Annual Report on Form 10-K for the fiscal year ended September 30, 2022, filed with the Securities and Exchange Commission ("SEC") on November 16, 2022 .
Results of Operations for the Fiscal Years Ended September 30, 2023 and 2022 A discussion of our results of operations for the fiscal year ended September 30, 2023 compared to the fiscal year ended September 30, 2022 is included in Part II, Item 7— "Management's Discussion and Analysis of Financial Condition and Results of Operations" of our Annual Report on Form 10-K for the fiscal year ended September 30, 2023, filed with the SEC on November 8, 2023 .
The indenture governing the 2031 Notes also contains customary events of default with respect to the 2031 Notes. 4.65% Senior Notes due 2025 On December 20, 2018, we issued approximately $487.1 million in aggregate principal amount of the 2025 Notes.
The indenture governing the Notes also contains customary events of default with respect to the Notes. Senior Notes Extinguished in Fiscal Year 2022 On December 20, 2018, we issued approximately $487.1 million in aggregate principal amount of the 4.65 percent senior notes due 2025 (the "2025 Notes").
As of September 30, 2023, our drilling rig fleet included a total of 262 drilling rigs. Our reportable operating business segments consist of the North America Solutions segment with 233 rigs, the Offshore Gulf of Mexico segment with seven offshore platform rigs and the International Solutions segment with 22 rigs as of September 30, 2023.
As of September 30, 2024, our drilling rig fleet included a total of 262 drilling rigs. Our reportable operating business segments consist of the North America Solutions segment with 228 rigs, the International Solutions segment with 27 rigs, and the Offshore Gulf of Mexico segment with seven offshore platform rigs as of September 30, 2024.
This metric is calculated by dividing revenue days by total days in the applicable period (i.e., 365 days). (5) Defined as the number of rigs generating revenue at the applicable end date of the time period. Operating Revenues Operating revenues were $2.5 billion and $1.8 billion in fiscal year 2023 and 2022, respectively.
This metric is calculated by dividing revenue days by total days in the applicable period (i.e., 366 days). (5) Defined as the number of rigs generating revenue at the applicable end date of the time period. Operating Revenues Operating revenues were $2.4 billion and $2.5 billion in fiscal year 2024 and 2023, respectively.
This metric is calculated by dividing revenue days by total days in the applicable period (i.e., 365 days). (5) Defined as the number of rigs generating revenue at the applicable end date of the time period. Operating Revenues Operating revenues were $212.6 million and $136.1 million in the fiscal years ended September 30, 2023 and 2022, respectively.
This metric is calculated by dividing revenue days by total days in the applicable period (i.e., 366 days). (5) Defined as the number of rigs generating revenue at the applicable end date of the time period. Operating Revenues Operating revenues were $194.0 million and $212.6 million in the fiscal years ended September 30, 2024 and 2023, respectively.
At the close of fiscal year 2023, we had 164 active contracted rigs, of which 91 were under a fixed-term contract and 73 were working well-to-well, compared to 192 contracted rigs at September 30, 2022. Our long-term strategy remains focused on innovation, technology, safety, operational excellence and reliability.
At the close of fiscal year 2024, we had 170 active contracted rigs, of which 100 were under a fixed-term contract and 70 were working well-to-well, compared to 164 contracted rigs at September 30, 2023. Our long-term strategy remains focused on innovation, technology, safety, operational excellence and reliability.
Generally, the level of capital expenditures is dictated by capital budgets set to achieve respective production targets in relation to current and expected future prices of crude oil and natural gas, which are determined by various supply and demand factors. Both commodities have historically been, and we expect them to continue to be, cyclical and highly volatile.
Generally, the level of capital expenditures is dictated by capital budgets set to achieve respective production targets in relation to current and expected future prices of crude oil and natural gas, which are determined by various supply and demand factors and have historically been volatile.
Insurance is purchased over deductibles to reduce our exposure to catastrophic events but there can be no assurance that such coverage will apply or be adequate in all circumstances. Estimates are recorded for incurred outstanding liabilities for workers’ compensation and other casualty claims. Retained losses are estimated and accrued based upon our estimates of the aggregate liability for claims incurred.
Insurance is purchased over deductibles to reduce our exposure to catastrophic events but there can be no assurance that such coverage will apply or be adequate in all circumstances. Estimates are recorded for incurred outstanding liabilities for workers’ compensation and other casualty claims.
Approximately 33.8 percent of the September 30, 2023 total backlog is reasonably expected to be fulfilled in fiscal year 2025 and thereafter. 2023 FORM 10-K | 39 Table of Contents The following table sets forth the total backlog by reportable segment as of September 30, 2023 and 2022, and the percentage of the September 30, 2023 backlog reasonably expected to be fulfilled in fiscal year 2025 and thereafter: (in billions) September 30, 2023 September 30, 2022 Percentage Reasonably Expected to be Fulfilled in Fiscal Year 2025 and Thereafter North America Solutions $ 1.1 $ 0.9 29.0 % Offshore Gulf of Mexico $ — $ — — International Solutions $ 0.3 $ 0.3 52.7 $ 1.4 $ 1.2 The early termination of a contract may result in a rig being idle for an extended period of time, which could adversely affect our financial condition, results of operations and cash flows.
The following table sets forth the total backlog by reportable segment as of September 30, 2024 and 2023, and the percentage of the September 30, 2024 backlog reasonably expected to be fulfilled in fiscal year 2025: (in billions) September 30, 2024 September 30, 2023 Percentage Reasonably Expected to be Fulfilled in Fiscal Year 2025 North America Solutions $ 0.7 $ 1.1 82.8 % International Solutions 0.8 0.3 25.9 Offshore Gulf of Mexico — — — $ 1.5 $ 1.4 The early termination of a contract may result in a rig being idle for an extended period of time, which could adversely affect our financial condition, results of operations and cash flows.
Selling, General and Administrative Expense Selling, general and administrative expenses increased to $206.7 million in the fiscal year ended September 30, 2023 compared to $182.4 million in the fiscal year ended September 30, 2022.
Selling, General and Administrative Expense Selling, general and administrative expenses increased to $244.9 million in the fiscal year ended September 30, 2024 compared to $206.7 million in the fiscal year ended September 30, 2023.
Selling, General and Administrative Expenses Selling, general and administrative expenses increased to $58.4 million during the fiscal year ended September 30, 2023 as compared to $43.8 million during the fiscal year ended September 30, 2022.
Selling, General and Administrative Expenses Selling, general and administrative expenses increased to $61.1 million during the fiscal year ended September 30, 2024 as compared to $58.4 million during the fiscal year ended September 30, 2023.
If the carrying amount exceeds the fair value, an impairment charge will be recognized in an amount equal to the excess; however, the loss recognized would not exceed the total amount of goodwill allocated to that reporting unit.
If the carrying amount exceeds the fair value, an impairment charge will be recognized in an amount equal to the excess; however, the loss recognized would not exceed the total amount of goodwill allocated to that reporting unit. See Note 5—Goodwill and Intangible Assets for additional discussion of goodwill and intangible assets.
Estimates for liabilities and retained losses are based on adjusters’ estimates, our historical loss experience and statistical methods commonly used within the insurance industry that we believe are reliable. We also engage a third-party actuary to perform a periodic review of our casualty losses.
These estimates are based on adjusters’ estimates, our historical loss experience and statistical methods commonly used within the insurance industry that we believe are reliable. 2024 FORM 10-K | 58 Table of Contents We also engage a third-party actuary to perform a periodic review of our casualty losses.
Any further reversals or payments of the liability cannot be estimated at this time. The long‑term debt to total capitalization ratio was 16.6 percent as of September 30, 2023 and 2022. For additional information regarding debt agreements, refer to Note 6—Debt to the Consolidated Financial Statements. There were no other significant changes in our financial position since September 30, 2022.
The long‑term debt to total capitalization ratio was 38.2 percent and 16.6 percent as of September 30, 2024 and 2023. For additional information regarding debt agreements, refer to Note 6—Debt to the Consolidated Financial Statements. There were no other significant changes in our financial position since September 30, 2023.
The increase in cash provided by operating activities between fiscal years 2023 and 2022 is primarily driven by higher activity and pricing. The increase in cash provided by operating activities between fiscal years 2022 and 2021 was primarily driven by higher activity and pricing, and is partially offset by changes in operating net working capital.
The change in cash provided by operating activities between fiscal years 2024 and 2023 is primarily driven by lower activity levels partially offset by higher average pricing levels. The increase in cash provided by operating activities between fiscal years 2023 and 2022 was primarily driven by higher activity and pricing.
Additional details are fully discussed in Note 6—Debt. 2023 FORM 10-K | 47 Table of Contents Senior Notes 2.90% Senior Notes due 2031 On September 29, 2021, we issued $550.0 million aggregate principal amount of the 2.90 percent 2031 Notes in an offering to persons reasonably believed to be qualified institutional buyers in the United States pursuant to Rule 144A under the Securities Act (“Rule 144A”) and to certain non-U.S. persons in transactions outside the United States pursuant to Regulation S under the Securities Act (“Regulation S”).
Senior Notes Issued in Fiscal Year 2021 On September 29, 2021, we issued $550.0 million aggregate principal amount of the 2.90 percent senior notes due 2031 (the "2031 Notes") in an offering to persons reasonably believed to be qualified institutional buyers in the United States pursuant to Rule 144A under the Securities Act and to certain non-U.S. persons in transactions outside the United States pursuant to Regulation S under the Securities Act.
Direct Operating Expenses Direct operating expenses consisted primarily of $12.5 million and $7.0 million in adjustments to accruals for estimated losses allocated to the Captives and rig and casualty insurance premiums of $39.7 million and $35.6 million during the fiscal years ended September 30, 2023 and 2022, respectively.
Direct Operating Expenses Direct operating expenses of $69.8 million and $57.9 million during the fiscal years ended September 30, 2024 and 2023, respectively, primarily consisted of $11.4 million and $12.5 million, respectively, in adjustments to accruals for estimated losses allocated to the Captives, rig and casualty insurance premiums of $37.6 million and $39.7 million, respectively, and medical stop loss expenses of $15.5 million and $10.6 million, respectively.
Our actual results may differ materially from those anticipated in these forward-looking statements as a result of a variety of risks and uncertainties, including those described in this Form 10-K under “Cautionary Note regarding Forward-Looking Statements” and Item 1A— “Risk Factors.” Accordingly, past results and trends should not be used by investors to anticipate future results or trends.
Our future operating results may be affected by various trends and factors which are beyond our control. Our actual results may differ materially from those anticipated in these forward-looking statements as a result of a variety of risks and uncertainties, including those described in this Form 10-K under “Cautionary Note regarding Forward-Looking Statements” and Item 1A—Risk Factors.
If these estimates and related assumptions change in the future, additional valuation allowances may be recorded against the deferred tax assets resulting in additional income tax expense in the future.
If these estimates and related assumptions change in the future, additional valuation allowances may be recorded against the deferred tax assets resulting in additional income tax expense in the future. See Note 7—Income Taxes to our Consolidated Financial Statements for additional income tax disclosures.
The remaining $4.0 million is recorded within the North America Solutions segment. The impairment charge was recorded in the Consolidated Statement of Operations for the fiscal year ended September 30, 2023.
The remaining $4.0 million is recorded within the North America Solutions segment. The impairment charge was recorded in the Consolidated Statement of Operations for the fiscal year ended September 30, 2023. Acquisition Transaction Costs During the fiscal year ended September 30, 2024, we recognized approximately $15.0 million in acquisition transaction costs associated with the acquisition of KCA Deutag.
This increase was largely driven by a $10.8 million increase in professional services fees. 2023 FORM 10-K | 42 Table of Contents Offshore Gulf of Mexico The following table presents certain information with respect to our Offshore Gulf of Mexico reportable segment: (in thousands, except operating statistics) 2023 2022 % Change Operating revenues $ 130,244 $ 125,465 3.8 % Direct operating expenses 96,781 90,415 7.0 Depreciation 7,622 9,175 (16.9) Selling, general and administrative expense 3,035 2,661 14.1 Segment operating income $ 22,806 $ 23,214 (1.8) Financial Data and Other Operating Statistics 1 : Direct margin (Non-GAAP) 2 $ 33,463 $ 35,050 (4.5) Revenue days 3 1,460 1,460 — Average active rigs 4 4 4 — Number of active rigs at the end of period 5 4 4 — Number of available rigs at the end of period 7 7 — Reimbursements of "out-of-pocket" expenses $ 30,445 $ 26,077 16.8 (1) These operating metrics and financial data, including average active rigs, are provided to allow investors to analyze the various components of segment financial results in terms of activity, utilization and other key results.
Offshore Gulf of Mexico The following table presents certain information with respect to our Offshore Gulf of Mexico reportable segment: (in thousands, except operating statistics) 2024 2023 % Change Operating revenues $ 106,207 $ 130,244 (18.5) % Direct operating expenses 82,668 96,781 (14.6) Depreciation 7,530 7,622 (1.2) Selling, general and administrative expense 3,594 3,035 18.4 Segment operating income $ 12,415 $ 22,806 (45.6) Financial Data and Other Operating Statistics 1 : Direct margin (Non-GAAP) 2 $ 23,539 $ 33,463 (29.7) Revenue days 3 1,111 1,460 (23.9) Average active rigs 4 3 4 (23.9) Number of active rigs at the end of period 5 3 4 (25.0) Number of available rigs at the end of period 7 7 — Reimbursements of "out-of-pocket" expenses $ 31,717 $ 30,445 4.2 (1) These operating metrics and financial data, including average active rigs, are provided to allow investors to analyze the various components of segment financial results in terms of activity, utilization and other key results.
During the fiscal year ended 2023, we entered into a Blue Chip Swap transaction, which resulted in a $12.2 million loss on investment recorded in Gain on investment securities within our Consolidated Statements of Operations. As a result of the Blue Chip Swap transaction, $9.8 million of net cash was repatriated to the U.S. during the period.
During the fiscal year ended 2024 and 2023, we entered into a Blue Chip Swap transaction, which resulted in a $7.1 million and $12.2 million loss on investment recorded in Gain on investment securities within our Consolidated Statements of Operations, respectively.
In total, we had $42.1 million outstanding as of September 30, 2023. The applicable agreements for all unsecured debt contain additional terms, conditions and restrictions that we believe are usual and customary in unsecured debt arrangements for companies that are similar in size and credit quality.
The applicable agreements for all unsecured debt contain additional terms, conditions and restrictions that we believe are usual and customary in unsecured debt arrangements for companies that are similar in size and credit quality. At September 30, 2024, we were in compliance with all debt covenants.
Our cash flows for the fiscal years ended September 30, 2023, 2022 and 2021 are presented below: Year Ended September 30, (in thousands) 2023 2022 2021 Net cash provided by (used in): Operating activities $ 833,682 $ 233,913 $ 136,440 Investing activities (322,584) (167,315) (161,994) Financing activities (463,869) (734,305) 425,523 Net increase (decrease) in cash and cash equivalents and restricted cash $ 47,229 $ (667,707) $ 399,969 Operating Activities Our operating net working capital (non-GAAP) as of September 30, 2023, 2022, and 2021 is presented below: Year Ended September 30, (in thousands) 2023 2022 2021 Total current assets $ 1,006,625 $ 1,002,944 $ 1,586,566 Less: Cash and cash equivalents 257,174 232,131 917,534 Short-term investments 93,600 117,101 198,700 Assets held-for-sale 645 4,333 71,453 Prepaid property, plant and equipment 21,821 10,091 — 633,385 639,288 398,879 Total current liabilities 418,931 394,810 866,306 Less: Dividends payable 25,194 26,693 27,332 Current portion of long-term debt, net — — 483,486 Advance payment for sale of property, plant and equipment — 600 86,524 $ 393,737 $ 367,517 $ 268,964 Operating net working capital (non-GAAP) $ 239,648 $ 271,771 $ 129,915 Cash flows provided by operating activities were approximately $833.7 million, $233.9 million, and $136.4 million for the fiscal year ended September 30, 2023, 2022, and 2021 respectively.
Our cash flows for the fiscal years ended September 30, 2024, 2023 and 2022 are presented below: Year Ended September 30, (in thousands) 2024 2023 2022 Net cash provided by (used in): Operating activities $ 684,663 $ 833,682 $ 233,913 Investing activities (458,748) (322,584) (167,315) Financing activities 986,507 (463,869) (734,305) Net increase (decrease) in cash and cash equivalents and restricted cash $ 1,212,422 $ 47,229 $ (667,707) 2024 FORM 10-K | 52 Table of Contents Operating Activities Our operating net working capital (non-GAAP) as of September 30, 2024, 2023, and 2022 is presented below: Year Ended September 30, (in thousands) 2024 2023 2022 Total current assets $ 1,192,069 $ 1,006,625 $ 1,002,944 Less: Cash and cash equivalents 217,341 257,174 232,131 Short-term investments 292,919 93,600 117,101 Assets held-for-sale — 645 4,333 Prepaid property, plant and equipment 23,249 21,821 10,091 $ 658,560 $ 633,385 $ 639,288 Total current liabilities 446,949 418,931 394,810 Less: Dividends payable 25,024 25,194 26,693 Advance payment for sale of property, plant and equipment — — 600 $ 421,925 $ 393,737 $ 367,517 Operating net working capital (non-GAAP) $ 236,635 $ 239,648 $ 271,771 Cash flows provided by operating activities were approximately $684.7 million, $833.7 million, and $233.9 million for the fiscal year ended September 30, 2024, 2023, and 2022 respectively.
Our wholly‑owned captive insurance companies finance a significant portion of the physical damage risk on company‑owned drilling rigs as well as casualty deductibles.
Our wholly‑owned captive insurance companies finance a significant portion of the physical damage risk on company‑owned drilling rigs as well as casualty deductibles and other risk retentions. An actuary reviews the loss reserves retained by the Company and the Captives on an annual basis.
This estimate includes normal capital maintenance requirements, information technology spending, and skidding to walking conversions for up to 14 rigs. 2023 FORM 10-K | 46 Table of Contents Net Purchases & Sales of Short-Term Investments Our net sales of short-term investments during fiscal year 2023 were $14.3 million compared to net sales of $79.6 million and net purchases $107.4 million in fiscal years 2022 and 2021, respectively.
This estimate includes normal capital maintenance requirements, planned rig-related equipment upgrades, and skidding to walking conversions for up to six rigs. Net Sales of Short-Term Investments Our net sales of short-term investments during fiscal year 2024 were $3.5 million compared to net sales of $14.3 million and $79.6 million in fiscal years 2023 and 2022, respectively.
Additionally, the aggregate gain was offset by a $12.2 million loss on investment recognized during the fiscal year ended September 30, 2023 as a result of a Blue Chip Swap transaction that occurred during the period. See—Note 2—Summary of Significant Accounting Policies, Related Risks and Uncertainties—International Solutions Drilling Risks for additional information related to the Blue Chip Swap.
See Note 2—Summary of Significant Accounting Policies, Related Risks and Uncertainties—International Solutions Drilling Risks for additional details related to the Blue Chip Swap. During the fiscal year ended September 30, 2023, we recognized an aggregate gain of $11.3 million on investment securities.
See Note 7—Income Taxes to our Consolidated Financial Statements for additional income tax disclosures. 2023 FORM 10-K | 41 Table of Contents North America Solutions The following table presents certain information with respect to our North America Solutions reportable segment: (in thousands, except operating statistics) 2023 2022 % Change Operating revenues $ 2,519,743 $ 1,788,167 40.9 % Direct operating expenses 1,447,528 1,218,134 18.8 Depreciation and amortization 353,976 375,250 (5.7) Research and development 30,457 26,728 14.0 Selling, general and administrative expense 58,367 43,796 33.3 Asset impairment charges 3,948 1,868 111.3 Restructuring charges — 498 (100.0) Segment operating income $ 625,467 $ 121,893 413.1 Financial Data and Other Operating Statistics 1 : Direct margin (Non-GAAP) 2 $ 1,072,215 $ 570,033 88.1 Revenue days 3 61,814 59,672 3.6 Average active rigs 4 169 163 3.7 Number of active rigs at the end of period 5 147 176 (16.5) Number of available rigs at the end of period 233 236 (1.3) Reimbursements of "out-of-pocket" expenses $ 304,870 $ 232,092 31.4 (1) These operating metrics and financial data, including average active rigs, are provided to allow investors to analyze the various components of segment financial results in terms of activity, utilization and other key results.
North America Solutions The following table presents certain information with respect to our North America Solutions reportable segment: (in thousands, except operating statistics) 2024 2023 % Change Operating revenues $ 2,445,946 $ 2,519,743 (2.9) % Direct operating expenses 1,366,414 1,447,528 (5.6) Depreciation and amortization 366,446 353,976 3.5 Research and development 41,305 30,457 35.6 Selling, general and administrative expense 61,107 58,367 4.7 Asset impairment charges — 3,948 (100.0) Segment operating income $ 610,674 $ 625,467 (2.4) Financial Data and Other Operating Statistics 1 : Direct margin (Non-GAAP) 2 $ 1,079,532 $ 1,072,215 0.7 Revenue days 3 55,387 61,814 (10.4) Average active rigs 4 151 169 (10.4) Number of active rigs at the end of period 5 151 147 2.7 Number of available rigs at the end of period 228 233 (2.1) Reimbursements of "out-of-pocket" expenses $ 294,375 $ 304,870 (3.4) (1) These operating metrics and financial data, including average active rigs, are provided to allow investors to analyze the various components of segment financial results in terms of activity, utilization and other key results.
Our indebtedness under our unsecured senior notes totaled $550.0 million at September 30, 2023 and matures on September 29, 2031. As of September 30, 2023, we had a $517.8 million deferred tax liability on our Consolidated Balance Sheets, primarily related to temporary differences between the financial and income tax basis of property, plant and equipment.
As of September 30, 2024, we had a $495.5 million deferred tax liability on our Consolidated Balance Sheets, primarily related to temporary differences between the financial and income tax basis of property, plant and equipment.
The increase was primarily driven by the factors described above. 2023 FORM 10-K | 43 Table of Contents International Solutions The following table presents certain information with respect to our International Solutions reportable segment: (in thousands, except operating statistics) 2023 2022 % Change Operating revenues $ 212,566 $ 136,072 56.2 % Direct operating expenses 187,292 120,780 55.1 Depreciation 7,615 4,156 83.2 Selling, general and administrative expense 10,401 8,779 18.5 Asset impairment charges 8,149 2,495 226.6 Segment operating loss $ (891) $ (138) (545.7) Financial Data and Other Operating Statistics 1 : Direct margin (Non-GAAP) 2 $ 25,274 $ 15,292 65.3 Revenue days 3 4,788 3,036 57.7 Average active rigs 4 13 8 62.5 Number of active rigs at the end of period 5 13 12 8.3 Number of available rigs at the end of period 22 28 (21.4) Reimbursements of "out-of-pocket" expenses $ 10,227 $ 4,910 108.3 (1) These operating metrics and financial data, including average active rigs, are provided to allow investors to analyze the various components of segment financial results in terms of activity, utilization and other key results.
International Solutions The following table presents certain information with respect to our International Solutions reportable segment: (in thousands, except operating statistics) 2024 2023 % Change Operating revenues $ 193,975 $ 212,566 (8.7) % Direct operating expenses 174,634 187,292 (6.8) Depreciation 10,863 7,615 42.7 Selling, general and administrative expense 9,427 10,401 (9.4) Asset impairment charges — 8,149 (100.0) Segment operating loss $ (949) $ (891) (6.5) Financial Data and Other Operating Statistics 1 : Direct margin (Non-GAAP) 2 $ 19,341 $ 25,274 (23.5) Revenue days 3 4,614 4,788 (3.6) Average active rigs 4 13 13 (3.6) Number of active rigs at the end of period 5 16 13 23.1 Number of available rigs at the end of period 27 22 22.7 Reimbursements of "out-of-pocket" expenses $ 8,482 $ 10,227 (17.1) (1) These operating metrics and financial data, including average active rigs, are provided to allow investors to analyze the various components of segment financial results in terms of activity, utilization and other key results.
The effective rates differ from the U.S. federal statutory rate (21.0 percent for the fiscal years 2023 and 2022) primarily due to non-deductible permanent items, the foreign derived intangible income deduction (in fiscal year 2022), state and foreign income taxes, and adjustments to the deferred state income tax rate.
The effective rates differ from the U.S. federal statutory rate (21.0 percent for the fiscal years 2024 and 2023) primarily due to non-deductible permanent items and state and foreign income taxes. Deferred income taxes are provided for temporary differences between the financial reporting basis and the tax basis of our assets and liabilities.
Year Ended September 30, 2023 (in thousands) North America Solutions Offshore Gulf of Mexico International Solutions Segment operating income (loss) $ 625,467 $ 22,806 $ (891) Add back: Depreciation and amortization 353,976 7,622 7,615 Research and development 30,457 — — Selling, general and administrative expense 58,367 3,035 10,401 Asset impairment charges 3,948 — 8,149 Direct margin (Non-GAAP) $ 1,072,215 $ 33,463 $ 25,274 Year Ended September 30, 2022 (in thousands) North America Solutions Offshore Gulf of Mexico International Solutions Segment operating income (loss) $ 121,893 $ 23,214 $ (138) Add back: Depreciation and amortization 375,250 9,175 4,156 Research and development 26,728 — — Selling, general and administrative expense 43,796 2,661 8,779 Asset impairment charges 1,868 — 2,495 Restructuring charges 498 — — Direct margin (Non-GAAP) $ 570,033 $ 35,050 $ 15,292
Year Ended September 30, 2024 (in thousands) North America Solutions International Solutions Offshore Gulf of Mexico Segment operating income (loss) $ 610,674 $ (949) $ 12,415 Add back: Depreciation and amortization 366,446 10,863 7,530 Research and development 41,305 — — Selling, general and administrative expense 61,107 9,427 3,594 Direct margin (Non-GAAP) $ 1,079,532 $ 19,341 $ 23,539 Year Ended September 30, 2023 (in thousands) North America Solutions International Solutions Offshore Gulf of Mexico Segment operating income (loss) $ 625,467 $ (891) $ 22,806 Add back: Depreciation and amortization 353,976 7,615 7,622 Research and development 30,457 — — Selling, general and administrative expense 58,367 10,401 3,035 Asset impairment charges 3,948 8,149 — Direct margin (Non-GAAP) $ 1,072,215 $ 25,274 $ 33,463
As we move forward, we believe that our advanced uniform rig fleet, technology offerings, financial strength, contract backlog and strong customer and employee base position us very well to respond to continued cyclical and often times volatile market conditions and to take advantage of future opportunities. 2023 FORM 10-K | 37 Table of Contents Market Outlook Our revenues are primarily derived from the capital expenditures of companies involved in the exploration, development and production of crude oil and natural gas (“E&Ps”).
As we move forward, we believe that our rig fleet, technology offerings, financial strength, contract backlog and strong customer and employee base position us very well to respond to continued cyclical and often times volatile market conditions and to take advantage of future opportunities.
Additionally, see Item 1A—"Risk Factors— The impact and effects of public health crises, pandemics and epidemics, such as the COVID-19 pandemic, could have a material adverse effect on our business, financial condition and results of operations" within this Form 10-K.
Additionally, see Item 1A—Risk Factors—" The impact and effects of public health crises, pandemics and epidemics, such as the COVID-19 pandemic, could have a material adverse effect on our business, financial condition and results of operations." within this Form 10-K. 2024 FORM 10-K | 47 Table of Contents Results of Operations for the Fiscal Years Ended September 30, 2024 and 2023 Consolidated Results of Operations Net Income We recorded income of $344.2 million ($3.43 per diluted share) for the fiscal year ended September 30, 2024 compared to income of $434.1 million ($4.16 per diluted share) for the fiscal year ended September 30, 2023.
Direct Operating Expenses Direct operating expenses increased to $96.8 million during the fiscal year ended September 30, 2023 as compared to $90.4 million during the fiscal year ended September 30, 2022.
Operating Expenses Direct operating expenses decreased to $174.6 million during the fiscal year ended September 30, 2024 as compared to $187.3 million during the fiscal year ended September 30, 2023.
Intercompany premium revenues recorded by the Captives during the fiscal years ended September 30, 2023 and 2022 amounted to $67.4 million and $57.0 million, respectively, which were eliminated upon consolidation.
Operating revenues of $71.6 million and $77.3 million during the fiscal years ended September 30, 2024 and 2023, respectively, primarily consisted of $61.2 million and $67.4 million, respectively, in intercompany premium revenues recorded by the Captives. These revenues were eliminated upon consolidation.
As of September 30, 2023, we had $95.0 million in uncommitted bilateral credit facilities, for the purpose of obtaining the issuance of international letters of credit, bank guarantees, and performance bonds. Of the $95.0 million, $40.0 million was outstanding as of September 30, 2023. Separately, we had $2.1 million in standby letters of credit and bank guarantees outstanding.
As of September 30, 2024, there were no borrowings or letters of credit outstanding, leaving $950.0 million available to borrow under the Amended Credit Facility. As of September 30, 2024, we had $160.0 million in uncommitted bilateral credit facilities, for the purpose of obtaining the issuance of international letters of credit, bank guarantees, and performance bonds.
During the fiscal year ended September 30, 2022, we identified two international FlexRig® drilling rigs that met the asset held-for-sale criteria and were reclassified to Assets held-for-sale on our Consolidated Balance Sheets.
During the same period, we also identified additional equipment that met the asset held-for-sale criteria and were reclassified as Assets held-for-sale on our Consolidated Balance Sheets.
At September 30, 2023, we were in compliance with all debt covenants. 2023 FORM 10-K | 48 Table of Contents Future Cash Requirements Our operating cash requirements, scheduled debt repayments, interest payments, any declared dividends, and estimated capital expenditures for fiscal year 2024 are expected to be funded through current cash and cash to be provided from operating activities.
Future Cash Requirements Our operating cash requirements, scheduled debt repayments, interest payments, any declared dividends, and estimated capital expenditures for fiscal year 2025 are expected to be funded through current cash and cash to be provided from operating activities. However, there can be no assurance that we will continue to generate cash flows at current levels.
The $24.3 million increase in fiscal year 2023 is primarily due to an increase in professional fees of $12.0 million and an increase in labor and labor-related expenses of $8.6 million.
The $38.2 million increase in fiscal year 2024 is primarily due to a $19.6 million increase in labor and labor-related expenses; and a $8.9 million increase in IT related and professional service expenses.
With most drilling contracts, we receive payments contractually designated for the mobilization and demobilization of drilling rigs and other equipment to and from the client’s drill site. Revenue associated with the mobilization and demobilization of our drilling rigs to and from the client’s drill site do not relate to a distinct good or service.
Revenue associated with the mobilization and demobilization of our drilling rigs to and from the client’s drill site do not relate to a distinct good or service. These revenues are deferred and recognized ratably over the related contract term that drilling services are provided.
This supply-demand dynamic combined with the value proposition we provide our customers through our drilling expertise, high-quality FlexRig® fleet, and automation technology is expected to result in an improvement in our underlying contract economics.
This supply-demand dynamic combined with the value proposition we provide our customers through our drilling expertise, high-quality FlexRig® fleet, and automation technology remains constructive for our underlying contract economics. With regard to our North America Solutions segment, our rig count remained relatively range-bound during fiscal 2024 despite a decline in the overall industry rig count.
Financing Activities Repurchase of Shares The Company has an evergreen authorization from the Board of Directors for the repurchase of up to four million common shares in any calendar year. In December 2022, the Board of Directors increased the maximum number of shares authorized to be repurchased in calendar year 2023 to five million common shares.
Repurchase of Shares The Company has an evergreen authorization from the Board of Directors for the repurchase of up to four million common shares in any calendar year. The repurchases may be made using our cash and cash equivalents or other available sources.
Operating Revenue Consolidated operating revenues were $2.9 billion and $2.1 billion during fiscal years 2023 and 2022, respectively. The $0.8 billion increase in fiscal year 2023 from fiscal year 2022 was primarily driven by an increase in average rig pricing and activity levels in our North America Solutions segment and increased activity levels in our International Solutions segment.
Operating Revenue Consolidated operating revenues were $2.8 billion and $2.9 billion during fiscal years 2024 and 2023, respectively. The $0.1 billion decrease was primarily driven by lower activity levels. Direct Operating Expenses, Excluding Depreciation and Amortization Direct operating expenses in fiscal year 2024 were $1.6 billion, compared to direct operating expenses of $1.7 billion in fiscal year 2023.
The effective income tax rate was 26.8 percent in fiscal year 2023 compared to 77.8 percent in fiscal year 2022.
Income Taxes We had an income tax expense of $136.9 million in fiscal year 2024 compared to an income tax expense of $159.3 million in fiscal year 2023. The effective income tax rate was 28.5 percent in fiscal year 2024 compared to 26.8 percent in fiscal year 2023.
Operating revenues increased $0.7 billion in fiscal year 2023 primarily due to higher pricing and a 3.6 percent increase in activity levels. Direct Operating Expenses Direct operating expenses increased to $1.4 billion during the fiscal year ended September 30, 2023 as compared to $1.2 billion during the fiscal year ended September 30, 2022.
The $73.8 million decrease in operating revenues was primarily due to a 10.4 percent decrease in activity levels partially offset by higher average pricing levels. Direct Operating Expenses Direct operating expenses decreased by $81.1 million during fiscal year ended September 30, 2024.
Asset Impairment Charges During the fiscal year ended September 30, 2023, the Company initiated a plan to decommission and scrap four international FlexRig ® drilling rigs and four conventional drilling rigs located in Argentina that are not suitable for unconventional drilling. As a result, these rigs were reclassified to Assets held-for-sale on our Consolidated Balance Sheets.
This decrease was primarily driven by a 3.6 percent decrease in activity levels and decreases in per revenue day materials and supplies expense. 2024 FORM 10-K | 50 Table of Contents Asset Impairment Charges During the fiscal year ended September 30, 2023, the Company initiated a plan to decommission and scrap four international FlexRig ® drilling rigs and four conventional drilling rigs located in Argentina that are not suitable for unconventional drilling.
Net Purchases of Long-Term Investments Our net purchases of long-term investments were $20.7 million, $29.2 million and $102.5 million in fiscal years 2023, 2022 and 2021, respectively.
As a result of the Blue Chip Swap transactions, $13.8 million and $9.8 million of net cash was repatriated to the U.S. during 2024 and 2023, respectively. Net Purchases of Long-Term Investments Our net purchases of long-term investments were $9.1 million, $20.7 million and $29.2 million in fiscal years 2024, 2023 and 2022, respectively.
The decrease in net purchases between fiscal years 2022 and 2021 is primarily driven by our $100.0 million cornerstone investment in ADNOC Drilling purchased during fiscal year 2021, the $22.0 million of proceeds received from the liquidation of our remaining equity securities in Schlumberger, Ltd, during the fiscal year ended September 30, 2022, offset by the purchase of a $33.0 million cornerstone investment in a convertible note in Galileo Holdco 2 and the purchase of $18.2 million in various geothermal investments during fiscal year 2022.
Our activity during the fiscal year ended September 30, 2022, was driven by a $33.0 million cornerstone investment in Galileo Holdco 2 Limited Technologies and the purchase of $18.2 million in various geothermal investments, offset by $22.0 million of proceeds received from the liquidation of our remaining equity securities in Schlumberger, Ltd. 2024 FORM 10-K | 53 Table of Contents Insurance Proceeds from Involuntary Conversion In November 2022, a fire at a wellsite caused substantial damage to one of our super-spec rigs within our North America Solutions segment.
As our revenues increase, operating net working capital is typically a use of capital, while conversely, as our revenues decrease, operating net working capital is typically a source of capital.
As our revenues increase, operating net working capital is typically a use of capital, while conversely, as our revenues decrease, operating net working capital is typically a source of capital. As of September 30, 2024 and 2023, we had cash and cash equivalents of $217.3 million and $257.2 million and short-term investments of $292.9 million and $93.6 million, respectively.
Furthermore, we still believe the supply and demand dynamics surrounding our North America Solutions segment remain constructive for future activity and pricing levels.
The rig market was pressured by continued weakness in natural gas prices as well as other non-commodity price related factors, such as customer capital budgets, drilling plans, production levels and customer consolidations. We still believe the supply and demand dynamics surrounding our North America Solutions segment remain constructive for future activity and pricing levels.
This increase was primarily driven by an increase of $33.3 million in labor and labor-related expense and an increase of $17.6 million in materials and supplies as a result of higher activity levels.
The decrease was primarily driven by a decrease in activity levels as described above, partially offset by an increase in per revenue day materials and supplies expense.
As of September 30, 2023 and 2022, our contract drilling backlog was $1.4 billion and $1.2 billion, respectively. The increase in backlog at September 30, 2023 from 2022 is primarily due to an increase in the number of contracts executed under FlexPool agreements.
As of September 30, 2024 and 2023, our contract drilling backlog was $1.5 billion and $1.4 billion, respectively. The increase in backlog at September 30, 2024 compared to 2023 is primarily due to the Company finalizing contractual terms with Saudi Aramco for a seven super-spec FlexRig® tender award for work in the Kingdom of Saudi Arabia.
The decrease is reflective of lower capital expenditures over the last several years. Depreciation and amortization includes amortization of intangible assets of $6.6 million and $7.2 million in fiscal years 2023 and 2022, and abandonments of equipment of $3.3 million and $6.6 million in fiscal years 2023 and 2022, respectively.
Depreciation and amortization includes amortization of intangible assets of $6.4 million and $6.6 million and abandonments of equipment of $6.5 million and $3.3 million in fiscal years 2024 and 2023, respectively. Research and Development Expense Research and development expense was $41.0 million and $30.0 million in fiscal years 2024 and 2023, respectively.
The increase in capital expenditures is largely driven by higher activity levels and increased costs associated with rig upgrades, including walking rig conversions. Our fiscal year 2024 capital spending is currently estimated to be between $450 million and $500 million.
The increase in capital expenditures is driven by the timing of procurement associated with equipment overhauls and certain long-term projects including the procurement of long lead items for international expansion projects. Our fiscal year 2025 capital spending is currently estimated to be between $290 million and $325 million.
Executive Summary Helmerich & Payne, Inc. (“H&P,” which, together with its subsidiaries, is identified as the “Company,” “we,” “us,” or “our,” except where stated or the context requires otherwise) through its operating subsidiaries provides performance-driven drilling solutions and technologies that are intended to make hydrocarbon recovery safer and more economical for oil and gas exploration and production companies.
Accordingly, past results and trends should not be used by investors to anticipate future results or trends. 2024 FORM 10-K | 44 Table of Contents Executive Summary H&P through its operating subsidiaries provides performance-driven drilling solutions and technologies that are intended to make hydrocarbon recovery safer and more economical for oil and gas exploration and production companies.