Biggest changeIn the following reconciliation, we provide amounts as reflected in the condensed consolidated financial statements unless otherwise noted. 38 Table of Contents The reconciliation of our net income (loss) to EBITDA and Adjusted EBITDA is as follows (in thousands): Year Ended December 31, 2022 2021 2020 Net income (loss) $ (87,784) $ (61,684) $ 20,084 Adjustments: Income tax provision (benefit) 12,603 (8,958) (18,701) Net interest expense 18,950 23,201 28,531 (Gain) loss on extinguishment of long-term debt — 136 (9,239) Other (income) expense, net 23,330 1,490 (4,724) Depreciation and amortization 142,686 141,514 133,709 Goodwill impairment — — 6,689 Gain on equity investment (8,262) — (264) EBITDA 101,523 95,699 156,085 Adjustments: (Gain) loss on disposition of assets, net — 631 (889) Acquisition and integration costs 2,664 — — Change in fair value of contingent consideration 16,054 — — General provision (release) for current expected credit losses 781 (54) 746 Realized losses from foreign exchange contracts not designated as hedging instruments — — (682) Adjusted EBITDA $ 121,022 $ 96,276 $ 155,260 The reconciliation of our cash flows from operating activities to Free Cash Flow is as follows (in thousands): Year Ended December 31, 2022 2021 2020 Cash flows from operating activities $ 51,108 $ 140,117 $ 98,800 Less: Capital expenditures, net of proceeds from sale of assets (33,504) (8,271) (19,281) Free Cash Flow $ 17,604 $ 131,846 $ 79,519 The reconciliation of our long-term debt to Net Debt is as follows (in thousands): December 31, 2022 2021 Long-term debt including current maturities $ 264,075 $ 305,010 Less: Cash and cash equivalents and restricted cash (189,111) (327,127) Net Debt $ 74,964 $ (22,117) Comparison of Years Ended December 31, 2022 and 2021 We have four reportable business segments: Well Intervention, Robotics, Shallow Water Abandonment and Production Facilities.
Biggest changeThe reconciliation of our net loss to EBITDA and Adjusted EBITDA is as follows (in thousands): Year Ended December 31, 2023 2022 2021 Net loss $ (10,838) $ (87,784) $ (61,684) Adjustments: Income tax provision (benefit) 18,352 12,603 (8,958) Net interest expense 17,338 18,950 23,201 Other expense, net 3,590 23,330 1,490 Depreciation and amortization 164,116 142,686 141,514 Gain on equity investment — (8,262) — EBITDA 192,558 101,523 95,563 Adjustments: (Gain) loss on disposition of assets, net (367) — 631 Acquisition and integration costs 540 2,664 — Change in fair value of contingent consideration 42,246 16,054 — General provision (release) for current expected credit losses 1,149 781 (54) Loss on extinguishment of long-term debt 37,277 — 136 Adjusted EBITDA $ 273,403 $ 121,022 $ 96,276 The reconciliation of our cash flows from operating activities to Free Cash Flow is as follows (in thousands): Year Ended December 31, 2023 2022 2021 Cash flows from operating activities $ 152,457 $ 51,108 $ 140,117 Less: Capital expenditures, net of proceeds from asset sales and insurance recoveries (18,659) (33,504) (8,271) Free Cash Flow $ 133,798 $ 17,604 $ 131,846 The reconciliation of our long-term debt to Net Debt is as follows (in thousands): December 31, 2023 2022 Long-term debt including current maturities $ 361,722 $ 264,075 Less: Cash and cash equivalents and restricted cash (332,191) (189,111) Net Debt $ 29,531 $ 74,964 38 Table of Contents Comparison of Years Ended December 31, 2023 and 2022 We have four reportable business segments: Well Intervention, Robotics, Shallow Water Abandonment and Production Facilities.
We expect the sources of funds to satisfy our material cash requirements to primarily come from our ongoing operations and existing cash on hand, but may also come from availability under the Amended ABL Facility and access to capital markets. 44 Table of Contents CRITICAL ACCOUNTING ESTIMATES Our discussion and analysis of our financial condition and results of operations, as reflected in the consolidated financial statements and related footnotes included in Item 8 .
We expect the sources of funds to satisfy our material cash requirements to primarily come from our ongoing operations and existing cash on hand, but may also come from availability under the Amended ABL Facility and access to capital markets. 44 Table of Contents CRITICAL ACCOUNTING ESTIMATES AND POLICIES Our discussion and analysis of our financial condition and results of operations, as reflected in the consolidated financial statements and related footnotes included in Item 8 .
As historically production enhancement through well intervention is less expensive per incremental barrel of oil than exploration, we continue to expect oil and gas companies to increasingly focus on optimizing production of their existing subsea wells.
As historically production enhancement through well intervention is less expensive per incremental barrel of oil than exploration, we expect oil and gas companies to continue to focus on optimizing production of their existing subsea wells.
All material intercompany transactions between the segments have been eliminated in our condensed consolidated financial statements, including our condensed consolidated results of operations.
All material intercompany transactions between the segments have been eliminated in our consolidated financial statements, including our consolidated results of operations.
Our property and equipment commitments include contractually committed amounts to purchase and service certain property and equipment (inclusive of commitments related to regulatory recertification and dry dock as discussed below) but do not include expected capital spending that is not contractually committed as of December 31, 2022.
Our property and equipment commitments include contractually committed amounts to purchase and service certain property and equipment (inclusive of commitments related to regulatory recertification and dry dock as discussed below) but do not include expected capital spending that is not contractually committed as of December 31, 2023.
The manner, timing and amount of any purchase will be determined by management based on an evaluation of market conditions, stock price, liquidity and other factors. The program does not obligate us to acquire any particular amount of common stock and may be modified or superseded at any time at our discretion.
The manner, timing and amount of any purchase will be determined by management at its discretion based on an evaluation of market conditions, stock price, liquidity and other factors. The 2023 Repurchase Program does not obligate us to acquire any particular amount of common stock and may be modified or superseded at any time at our discretion.
We support the energy transition to renewables through our services in offshore wind farm developments, primarily including subsea cable trenching and burial as well as seabed clearance and preparation services.
We support the energy transition to renewable energy through our services in offshore wind farm developments, primarily including subsea cable trenching and burial as well as seabed clearance and preparation services.
Comparison of Years Ended December 31, 2021 and 2020 Various financial and operational highlights for the years ended December 31, 2021 and 2020 were previously presented in our 2021 Annual Report on Form 10-K.
Comparison of Years Ended December 31, 2022 and 2021 Various financial and operational highlights for the years ended December 31, 2022 and 2021 were previously presented in our 2022 Annual Report on Form 10-K.
We expect growth in our renewables services as the energy market transitions to continued renewable energy developments. 36 Table of Contents Once end-of-life oil and gas wells have depleted their production, we decommission wells and infrastructure in our Well Intervention and Shallow Water Abandonment segments.
We expect growth in our renewables services as the energy market transitions to continued renewable energy developments. Once end-of-life oil and gas wells have depleted their production, we decommission wells and infrastructure in our Well Intervention and Shallow Water Abandonment segments.
Because there usually is a lack of quoted market prices for long-lived assets, the fair value of impaired assets is typically determined based on the present values of expected future cash flows using discount rates believed to be consistent with those used by principal market participants or based on a multiple of operating cash flows validated with historical market transactions of similar assets where possible. 45 Table of Contents The determination of the appropriate asset groups at which to evaluate impairment, the review of property and equipment for impairment indicators, the projection of future cash flows of property and equipment, and the estimated fair value of any property and equipment that may be deemed unrecoverable involve significant judgment and estimation by our management.
Because there usually is a lack of quoted market prices for long-lived assets, the fair value of impaired assets is typically determined based on the present values of expected future cash flows using discount rates believed to be consistent with those used by principal market participants or based on a multiple of operating cash flows validated with historical market transactions of similar assets where possible. 45 Table of Contents The review of property and equipment for impairment indicators, the projection of future cash flows of property and equipment, and the estimated fair value of any property and equipment that may be deemed unrecoverable involve significant judgment and estimation by our management.
Demand for our services in the renewable energy market is affected by various factors, including the pace of consumer shift towards renewable energy sources, global electricity demand, technological advancements that increase the production and/or reduce the cost of renewable energy, expansion of offshore renewable energy projects to deeper water, and government subsidies for renewable energy projects.
Demand for our services in the renewable energy market is affected by various factors, including the pace of consumer shift towards renewable energy sources, global electricity demand, technological advancements that increase the generation and/or reduce the cost of renewable energy, expansion of offshore renewable energy projects to deeper water and other regions, and government subsidies for renewable energy projects.
We expect these factors will continue to contribute to commodity price volatility and may temper customer spending for oil and gas projects. We maximize production of remaining oil and gas reserves for our customers primarily in our Well Intervention segment.
We expect these factors will continue to contribute to commodity price volatility with the potential to temper customer spending for oil and gas projects. We maximize production of existing oil and gas reserves for our customers primarily in our Well Intervention segment.
To arrive at our measure of Adjusted EBITDA, we exclude the gain or loss on disposition of assets, acquisition and integration costs, the change in fair value of contingent consideration and the general provision (release) for current expected credit losses, if any.
To arrive at our measure of Adjusted EBITDA, we exclude gains or losses on disposition of assets, acquisition and integration costs, gains or losses on extinguishment of long-term debt, the change in fair value of contingent consideration and the general provision (release) for current expected credit losses, if any.
Our operations service the life cycle of an oil and gas field and provide P&A services at the end of the life of a field as required by governmental regulations, and we believe that we have a competitive advantage in performing these services efficiently. We are subject to the effects of changing prices.
Our operations service the life cycle of an oil and gas field and provide P&A and decommissioning services at the end of the life of a field as required by governmental regulations. We believe that we have a competitive advantage in performing these services efficiently.
Item 1A. Risk Factors and located earlier in this Annual Report. EXECUTIVE SUMMARY Our Business We are an international offshore energy services company that provides specialty services to the offshore energy industry, with a focus on well intervention, robotics and full-field decommissioning operations.
Item 1A. Risk Factors and located earlier in this Annual Report. EXECUTIVE SUMMARY Our Business We are an international offshore energy services company that provides specialty services to the offshore energy industry, with a focus on well intervention, robotics and full-field decommissioning operations. We operate through our four business segments: Well Intervention, Robotics, Shallow Water Abandonment and Production Facilities.
Material Cash Requirements Our material cash requirements include our obligations to repay our long-term debt, satisfy other contractual cash commitments and fund other obligations, including the payment of the Alliance earn-out consideration to the seller in the Alliance transaction. 43 Table of Contents Long-term debt and other contractual commitments The following table summarizes the principal amount of our long-term debt and related debt service costs as well as other contractual commitments, which include commitments for property and equipment and operating lease obligations, as of December 31, 2022 and the portions of those amounts that are short-term (due in less than one year) and long-term (due in one year or greater) based on their stated maturities (in thousands).
Long-term debt and other contractual commitments The following table summarizes (in thousands) the principal amount of our long-term debt and related debt service costs as well as other contractual commitments, which include commitments for property and equipment, operating lease obligations and Alliance earn-out consideration, as of December 31, 2023 and the portions of those amounts that are short-term (due in less than one year) and long-term (due in one year or greater) based on their stated maturities.
Selling, General and Administrative Expenses. Our selling, general and administrative expenses were $76.8 million in 2022 as compared to $63.4 million in 2021, primarily reflecting higher employee incentive and share-based compensation costs as well as increased general and administrative expenses related to Helix Alliance. Equity in Earnings of Investment.
Our selling, general and administrative expenses were $94.4 million in 2023 as compared to $76.8 million in 2022, primarily reflecting higher employee incentive and share-based compensation costs and the addition of Helix Alliance. Equity in Earnings of Investment.
Financing Activities Net cash outflows from financing activities in 2022 primarily reflect the repayment of $7.9 million related to the MARAD Debt and $35 million related to the 2022 Notes (Note 7).
Net cash outflows from financing activities for 2022 primarily reflect the repayment of $7.9 million related to the MARAD Debt and $35.0 million related to Convertible Senior Notes due 2022.
EBITDA, Adjusted EBITDA, Free Cash Flow and Net Debt are non-GAAP financial measures that are commonly used but are not recognized accounting terms under GAAP.
We evaluate our operating performance and financial condition based on EBITDA, Adjusted EBITDA, Free Cash Flow and Net Debt. EBITDA, Adjusted EBITDA, Free Cash Flow and Net Debt are non-GAAP financial measures that are commonly used but are not recognized accounting terms under GAAP.
Non-GAAP financial measures should be viewed in addition to, and not as an alternative to, our reported results prepared in accordance with GAAP. Users of this financial information should consider the types of events and transactions that are excluded from these measures. We measure our operating performance based on EBITDA, Adjusted EBITDA, Free Cash Flow and Net Debt.
Non-GAAP financial measures should be viewed in addition to, and not as an alternative to, our reported results prepared in accordance with GAAP. Users of this financial information should consider the types of events and transactions that are excluded from these measures.
As of December 31, 2022, our contracts with Shell in the Gulf of Mexico, U.K. and Brazil, our contracts with Trident and Petrobras in Brazil and our agreement for the HP I in the Gulf of Mexico represented approximately 69% of our total backlog. As of December 31, 2021, our consolidated backlog totaled $348 million.
As of December 31, 2023, our various contracts with Shell globally, our contracts with Trident Energy and Petrobras in Brazil, our contracts with Repsol globally, and our agreement for the HP I in the Gulf of Mexico represented approximately 55% of our total backlog. As of December 31, 2022, our consolidated backlog totaled $847 million.
Equity in earnings of investment of $8.3 million primarily reflected the cash distribution as a result of the sale of the “Independence Hub” platform in 2022 (Note 2). Net Interest Expense.
Equity in earnings of investment of $8.3 million in 2022 primarily reflects the gain on the sale of the “Independence Hub” platform (Note 2). Net Interest Expense.
Repurchases under the program would be made through open market purchases in compliance with Rule 10b-18 under the Exchange Act, privately negotiated transactions or plans, instructions or contracts established under Rule 10b5-1 under the Exchange Act.
The 2023 Repurchase Program has no set expiration date. Repurchases under the 2023 Repurchase Program have been made through open market purchases in compliance with Rule 10b-18 under the Exchange Act, but may also be made through privately negotiated transactions or plans, instructions or contracts established under Rule 10b5-1 under the Exchange Act.
At December 31, 2022, our commitment related to long-term vessel charters totaled approximately $378.8 million, of which $157.3 million was related to the non-lease (services) components that are not included in operating lease liabilities in the consolidated balance sheet as of December 31, 2022 .
(2) Operating leases include vessel charters and facility and equipment leases. At December 31, 2023, our commitment related to long-term vessel charters totaled approximately $306.4 million, of which $119.0 million was related to the non-lease (services) components that are not included in operating lease liabilities in the consolidated balance sheet as of December 31, 2023 .
Net working capital measures short-term liquidity and is important for predicting cash flow and debt servicing capacity. Long-Term Debt Long-term debt in the table above is net of unamortized debt issuance costs and excludes current maturities of $38.2 million and $42.9 million, respectively, at December 31, 2022 and 2021. See Note 7 for information relating to our long-term debt.
Net working capital measures short-term liquidity and is important for predicting cash flow and debt requirements. Long-Term Debt Long-term debt in the table above is net of unamortized debt discount and debt issuance costs and excludes current maturities of $48.3 million and $38.2 million, respectively, at December 31, 2023 and 2022.
EBITDA, Adjusted EBITDA, Free Cash Flow and Net Debt should not be considered in isolation or as a substitute for, but instead are supplemental to, income from operations, net income, cash flows from operating activities, or other income or cash flow data prepared in accordance with GAAP.
EBITDA, Adjusted EBITDA, Free Cash Flow and Net Debt should not be considered in isolation or as a substitute for, but instead are supplemental to, income from operations, net income, cash flows from operating activities, or other data prepared in accordance with GAAP. 37 Table of Contents We define EBITDA as earnings before income taxes, net interest expense, gains and losses on equity investments, net other income or expense, and depreciation and amortization expense.
Our consolidated 2022 gross profit increased by $35.2 million as compared to 2021, primarily reflecting increased profitability in our Robotics and Production Facilities segments and the addition of Shallow Water Abandonment segment in the third quarter 2022, offset in part by decreased profitability in our Well Intervention segment.
Our consolidated 2023 gross profit increased by $149.7 million as compared to 2022, primarily reflecting increases in our Well Intervention, Robotics and Shallow Water Abandonment segments in 2023, offset in part by lower profitability in our Production Facilities segment.
(2) Represents the average utilization rate, which is calculated by dividing the total number of days the vessels, Robotics assets or marketable Shallow Water Abandonment systems generated revenues by the total number of calendar days in the applicable period.
(2) Represents the average utilization rate, which is calculated by dividing the total number of days the vessels, Robotics assets or Shallow Water Abandonment systems generated revenues by the total number of calendar days in the applicable period. Utilization rates of chartered Robotics vessels in 2023 and 2022 included 310 and 420 spot vessel days, respectively, at near full utilization.
Although the amount and timing of these costs may vary, they generally range between $3.0 million to $15.0 million per vessel and $0.5 million to $5.0 million per system.
Although the amount and timing of these costs may vary and are dependent on the timing of the certification renewal period, they generally range between $3.0 million to $15.0 million per Well Intervention vessel and $0.5 million to $5.0 million per system or Helix Alliance asset.
LIQUIDITY AND CAPITAL RESOURCES Financial Condition and Liquidity The following table presents certain information useful in the analysis of our financial condition and liquidity (in thousands): December 31, 2022 2021 Net working capital $ 162,634 $ 251,255 Long-term debt 225,875 262,137 Liquidity 284,729 304,660 Net Working Capital Net working capital is equal to current assets minus current liabilities and includes current maturities of long-term debt.
LIQUIDITY AND CAPITAL RESOURCES Financial Condition and Liquidity The following table presents certain information useful in the analysis of our financial condition and liquidity (in thousands): December 31, 2023 2022 Net working capital $ 249,223 $ 162,634 Long-term debt (excluding current maturities) 313,430 225,875 Liquidity 431,471 284,729 41 Table of Contents Net Working Capital Net working capital is equal to current assets minus current liabilities and includes cash and cash equivalents and restricted cash, current maturities of long-term debt and current operating lease liabilities.
The effective tax rates for 2022 and 2021 were (16.8)% and 12.7%, respectively. These variances were primarily attributable to the earnings mix between our higher and lower tax rate jurisdictions as well as losses in certain jurisdictions for which no financial statement benefits have been recognized (Note 8).
These variances were primarily attributable to the earnings mix between our higher and lower tax rate jurisdictions, non-deductible losses on the extinguishment of long-term debt as well as losses for which no financial statement benefits have been recognized (Note 8).
Net other expense was $23.3 million in 2022 as compared to $1.5 million in 2021, primarily reflecting higher foreign currency losses due to weakening of the British pound in 2022. Income Tax Provision (Benefit). Income tax provision was $12.6 million for 2022 as compared to income tax benefit of $9.0 million for 2021.
Net other expense was $23.3 million in 2022, primarily reflecting foreign currency losses due to the weakening of the British pound in 2022. Income Tax Provision. Income tax provision was $18.4 million for 2023 as compared to $12.6 million for 2022. The effective tax rates for 2023 and 2022 were 244.2% and (16.8)%, respectively.
We believe that our cash on hand, internally generated cash flows and availability under the ABL Facility will be sufficient to fund our operations and service our debt over at least the next 12 months. 42 Table of Contents A period of weak industry activity may make it difficult to comply with the covenants and other restrictions in our debt agreements.
We believe that our cash on hand, internally generated cash flows and availability under the Amended ABL Facility will be sufficient to fund our operations and service our debt and other obligations over at least the next 12 months.
Economic Outlook and Industry Influences Demand for our services is primarily influenced by the condition of the oil and gas and the renewable energy markets and, in particular, the willingness of offshore energy companies to spend on operational activities and capital projects.
Our services are key in supporting a global energy transition by maximizing production of existing oil and gas reserves, decommissioning end-of-life oil and gas fields and supporting renewable energy developments. 35 Table of Contents Industry Influences and Market Environment Demand for our services is primarily influenced by the condition of the oil and gas and the renewable energy markets and, in particular, the willingness of offshore energy companies to spend on operational activities and capital projects.
The following table details various financial and operational highlights for the periods presented (dollars in thousands): Year Ended December 31, Increase/(Decrease) 2022 2021 Amount Percent Net revenues — Well Intervention $ 524,241 $ 516,564 $ 7,677 1 % Robotics 191,921 137,295 54,626 40 % Shallow Water Abandonment 124,810 — 124,810 100 % Production Facilities 82,315 69,348 12,967 19 % Intercompany eliminations (50,187) (48,479) (1,708) $ 873,100 $ 674,728 $ 198,372 29 % 39 Table of Contents Year Ended Increase/ December 31, (Decrease) 2022 2021 Amount Percent Gross profit (loss) — Well Intervention $ (40,107) $ (21,262) $ (18,845) 89 % Robotics 37,507 13,441 24,066 179 % Shallow Water Abandonment 23,919 — 23,919 100 % Production Facilities 30,666 25,024 5,642 23 % Corporate, eliminations and other (1,369) (1,810) 441 $ 50,616 $ 15,393 $ 35,223 229 % Gross margin — Well Intervention (8) % (4) % Robotics 20 % 10 % Shallow Water Abandonment 19 % — % Production Facilities 37 % 36 % Total company 6 % 2 % Number of vessels, Robotics assets or Shallow Water Abandonment systems (1) / Utilization (2) Well Intervention vessels 7 / 80 % 7 / 67 % Robotics assets (3) 48 / 53 % 47 / 36 % Chartered Robotics vessels 5 / 95 % 3 / 97 % Shallow Water Abandonment vessels (4) 21 / 73 % — / — % Shallow Water Abandonment systems (5) 21 / 62 % — / — % (1) Represents the number of vessels, Robotics assets or marketable Shallow Water Abandonment systems as of the end of the period, including spot vessels and those under term charters, and excluding acquired vessels prior to their in-service dates, vessels managed on behalf of third parties and vessels or assets disposed of and/or taken out of service.
The following table details various financial and operational highlights for the periods presented (dollars in thousands): Year Ended December 31, Increase/(Decrease) 2023 2022 Amount Percent Net revenues — Well Intervention $ 732,761 $ 524,241 $ 208,520 40 % Robotics 257,875 191,921 65,954 34 % Shallow Water Abandonment 274,954 124,810 150,144 120 % Production Facilities 87,885 82,315 5,570 7 % Intercompany eliminations (63,747) (50,187) (13,560) $ 1,289,728 $ 873,100 $ 416,628 48 % Gross profit (loss) — Well Intervention $ 47,164 $ (40,107) $ 87,271 218 % Robotics 60,618 37,507 23,111 62 % Shallow Water Abandonment 71,261 23,919 47,342 198 % Production Facilities 23,494 30,666 (7,172) (23) % Corporate, eliminations and other (2,181) (1,369) (812) $ 200,356 $ 50,616 $ 149,740 296 % Gross margin — Well Intervention 6 % (8) % Robotics 24 % 20 % Shallow Water Abandonment 26 % 19 % Production Facilities 27 % 37 % Total company 16 % 6 % Number of vessels, Robotics assets or Shallow Water Abandonment systems (1) / Utilization (2) Well Intervention vessels 7 / 88 % 7 / 80 % Robotics assets (3) 46 / 62 % 48 / 53 % Chartered Robotics vessels 6 / 96 % 5 / 95 % Shallow Water Abandonment vessels (4) 20 / 74 % 21 / 73 % Shallow Water Abandonment systems (5) 26 / 70 % 21 / 62 % (1) Represents the number of vessels, Robotics assets or Shallow Water Abandonment systems as of the end of the period, including spot vessels and those under term charters, and excluding acquired vessels prior to their in-service dates, vessels managed on behalf of third parties and vessels or assets disposed of and/or taken out of service.
Chartered vessel days increased to 1,401 days, which included 420 spot vessel days, in 2022 as compared to 1,178 days, which included 477 spot vessel days, in 2021. Trenching days increased to 483 days during 2022 as compared to 336 days during 2021. Overall ROV and trencher utilization increased to 53% during 2022 from 36% during 2021.
Chartered vessel days increased to 1,699 days during 2023 as compared to 1,401 days during 2022. Integrated vessel trenching days increased to 807 days in 2023 as compared to 483 days in 2022. ROV and trencher utilization increased to 62% in 2023 from 53% in 2022.
Cash Flows The following table provides summary data from our consolidated statements of cash flows (in thousands): Year Ended December 31, 2022 2021 2020 Cash provided by (used in): Operating activities $ 51,108 $ 140,117 $ 98,800 Investing activities (138,289) (8,271) (19,281) Financing activities (44,844) (95,997) (52,578) Operating Activities The decrease in our operating cash flows for 2022 as compared to 2021 primarily reflects higher regulatory recertification costs for our vessels and systems and negative changes in net working capital.
During 2023, pursuant to the 2023 Repurchase Program we repurchased a total of 1,584,045 shares of our common stock for approximately $12.0 million. 42 Table of Contents Cash Flows The following table provides summary data from our consolidated statements of cash flows (in thousands): Year Ended December 31, 2023 2022 2021 Cash provided by (used in): Operating activities $ 152,457 $ 51,108 $ 140,117 Investing activities (18,659) (138,289) (8,271) Financing activities 25,109 (44,844) (95,997) Operating Activities The increase in our operating cash flows for 2023 as compared to 2022 primarily reflects higher earnings, offset in part by higher regulatory recertification costs for our vessels and systems and higher working capital outflows.
Liquidity We define liquidity as cash and cash equivalents, excluding restricted cash, plus available capacity under our credit facility. Our liquidity at December 31, 2022 included $186.6 million of cash and cash equivalents and $98.1 million of available borrowing capacity under the ABL Facility (Note 7) and excluded $2.5 million of restricted cash.
Our liquidity at December 31, 2022 included $186.6 million of cash and cash equivalents and $98.1 million of available borrowing capacity under the ABL Facility and excluded $2.5 million of restricted cash. The increase in cash and cash equivalents, excluding the impact of our debt refinancing activities, was primarily attributable to strong operating cash flows during 2023.
On February 20, 2023, we announced that our Board authorized a new share repurchase program under which we are authorized to repurchase up to $200 million issued and outstanding shares of our common stock. The repurchase program has no set expiration date.
We currently do not anticipate borrowing under the Amended ABL Facility other than for the issuance of letters of credit. In February 2023, we announced that our Board authorized a new share repurchase program under which we are authorized to repurchase up to $200 million issued and outstanding shares of our common stock.
Current volumes of work, rig utilization rates, the day rates quoted by drilling rig contractors and existing rig overhang affect the utilization and/or rates we can achieve for our assets and services.
Current volumes of work, rig utilization rates, the day rates quoted by drilling rig contractors and existing rig overhang affect the utilization and/or rates we can achieve for our assets and services. We are seeing oil and gas companies continue to invest in long-cycle exploration projects in addition to maintaining and/or increasing production from their existing reserves.
Our failure to comply with the covenants and other restrictions could lead to an event of default. Decreases in our borrowing base may limit our ability to fully access the ABL Facility. We currently do not anticipate borrowing under the ABL Facility other than for the issuance of letters of credit.
A period of weak industry activity may make it difficult to comply with the covenants and other restrictions in our debt agreements. Our failure to comply with the covenants and other restrictions could lead to an event of default. Decreases in our borrowing base may limit our ability to fully access the Amended ABL Facility.
Our Shallow Water Abandonment revenues in 2022 reflected revenues generated by Helix Alliance since the acquisition on July 1, 2022 (Note 3). The Epic Hedron heavy lift barge was 21% utilized, utilization of other Helix Alliance vessels was 76%, and utilization across marketable P&A and coiled tubing systems was 2,324 days, or 62%.
Our Shallow Water Abandonment revenues in 2022 reflect six months of revenue generated by Helix Alliance since July 1, 2022 (Note 3) with 73% utilization across vessels and 2,324 days, or 62%, of utilization across P&A systems and CT systems.
Those obligations, which are presented on a discounted basis on the consolidated balance sheets, approximate $78.6 million (undiscounted) as of December 31, 2022, none of which is expected to be paid during the next 12 months. We are entitled to receive certain amounts from Marathon Oil as certain decommissioning obligations are fulfilled. Regulatory certification and dry dock.
Those obligations, which are presented on a discounted basis on the consolidated balance sheets, approximate $80.9 million (undiscounted) for Thunder Hawk Field oil and gas properties and $37.1 million (undiscounted) for Droshky oil and gas properties as of December 31, 2023, none of which is expected to be paid during the next 12 months.
Our Production Facilities revenues increased by 19% in 2022 as compared to 2021, primarily reflecting higher oil and gas prices and improved rates related to the HFRS, offset in part by lower oil and gas production volumes in 2022. Revenues also benefitted from retroactive rate adjustment on our production contract with the HP I . Gross Profit (Loss).
Our Production Facilities revenues increased by 7% in 2023 as compared to 2022, primarily reflecting higher oil and gas production volumes, offset in part by lower oil and natural gas prices during 2023 as compared to 2022. Gross Profit (Loss).
Overall Well Intervention vessel utilization increased to 80% in 2022 as compared to 67% in 2021. Our Robotics revenues increased by 40% in 2022 as compared to 2021, primarily reflecting higher vessel, trenching and ROV activities.
Our Well Intervention revenues increased by 40% in 2023 as compared to 2022, primarily reflecting higher vessel utilization and rates in Brazil and the North Sea and higher rates in the Gulf of Mexico.
Our Production Facilities gross profit increased by $5.6 million in 2022 as compared to 2021, primarily reflecting increases in revenues, offset in part by higher costs during 2022. Acquisition and Integration Costs. Our acquisition and integration costs of $2.7 million reflected Alliance acquisition related costs incurred during 2022 (Note 3). Change in Fair Value of Contingent Consideration.
Our Production Facilities gross profit decreased by $7.2 million in 2023 as compared to 2022, primarily reflecting higher oil and gas production costs and well maintenance costs, offset in part by revenue increases during 2023. 40 Table of Contents Acquisition and Integration Costs.
Intercompany segment revenues are as follows (in thousands): Year Ended December 31, Increase/ 2022 2021 (Decrease) Well Intervention $ 16,545 $ 21,521 $ (4,976) Robotics 33,642 26,958 6,684 $ 50,187 $ 48,479 $ 1,708 Net Revenues.
Intercompany segment revenues are as follows (in thousands): Year Ended December 31, Increase/ 2023 2022 (Decrease) Well Intervention $ 28,396 $ 16,545 $ 11,851 Robotics 35,263 33,642 1,621 Shallow Water Abandonment 88 — 88 $ 63,747 $ 50,187 $ 13,560 Net Revenues.
Our Robotics gross profit increased by $24.1 million in 2022 as compared to 2021, primarily reflecting higher revenues due to increased trenching and ROV activities and a higher number of vessel days. Our Shallow Water Abandonment gross profit in 2022 reflected results from Helix Alliance since the acquisition on July 1, 2022.
Our Shallow Water Abandonment gross profit increased by $47.3 million in 2023 as compared to 2022, primarily reflecting full year of operating results from Helix Alliance in 2023 as compared to six months of operating results from Helix Alliance following its acquisition on July 1, 2022.
Regulatory recertification spend on our vessels and systems amounted to $35.1 million and $9.6 million, respectively, during the comparable year over year periods. Operating cash flows for 2022 and 2021 included the receipt of $1.1 million and $18.9 million, respectively, in income tax refunds related to the U.S. Coronavirus Aid, Relief, and Economic Security Act.
Regulatory recertification spend on our vessels and systems amounted to $62.5 million and $35.1 million, respectively, during the comparable year over year periods. Investing Activities Cash flows used in investing activities for 2023 decreased as compared to 2022.
Our Well Intervention vessels and systems are subject to certain regulatory recertification requirements that must be satisfied in order for the vessels and systems to operate. Recertification may require dry dock and other compliance costs on a periodic basis, usually every 30 months.
Recertification may require dry dock and other compliance costs on a periodic basis, usually every 30 months.
Our 2023 Notes and 2026 Notes have certain early redemption and conversion features that could affect the timing and amount of any cash requirements.
Accordingly, we reported $85.0 million of Alliance earn-out consideration in “Accrued liabilities” in the consolidated balance sheet as of December 31, 2023 (Note 4). 43 Table of Contents The 2026 Notes have certain early conversion and redemption features that could affect the timing and amount of any cash requirements.
Net Debt is calculated as long-term debt including current maturities of long-term debt less cash and cash equivalents and restricted cash.
We define Free Cash Flow as cash flows from operating activities less capital expenditures, net of proceeds from asset sales and insurance recoveries (related to property and equipment), if any. Net Debt is calculated as long-term debt including current maturities of long-term debt less cash and cash equivalents and restricted cash.
As the subsea tree base expands and ages and customers shift resources to renewable energy, the demand for P&A services should persist.
The demand for P&A services should grow as the subsea tree base expands, as government regulations continue to place stronger emphasis on decommissioning aged wells worldwide (including subsea trees as well as mature dry tree wells in the shallow waters of the Gulf of Mexico), and as customers shift resources to renewable energy.
We define EBITDA as earnings before income taxes, net interest expense, gain or loss on extinguishment of long-term debt, net other income or expense, and depreciation and amortization expense. Non-cash impairment losses on goodwill and other long-lived assets and non-cash gains and losses on equity investments are also added back if applicable.
Non-cash impairment losses on goodwill and other long-lived assets are also added back if applicable.
During 2022, we saw an improvement in the markets we serve as evidenced by increases in our revenues and gross profit. We expect continued improvements in our operating performance, increases in our cash position and high availability on the ABL Facility.
Following the slowdown triggered by the COVID-19 pandemic and beginning 2022, we have seen an improvement in the markets we serve as evidenced by increases in our revenues and gross profit.
Backlog We define backlog as firm commitments represented by signed contracts. As of December 31, 2022, our consolidated backlog totaled $847 million, of which $533 million is expected to be performed in 2023.
The Gulf of Mexico shallow water decommissioning demands are expected to experience volatility as customers balance their spending between decommissioning obligations and production needs. Backlog Our backlog is represented by signed contracts. As of December 31, 2023, our consolidated backlog totaled $850 million, of which $700 million is expected to be performed in 2024.
However, despite the current strong commodity price environment, there remain headwinds to commodity price stability, including those regional conflicts, high inflation and in particular governments’ and central banks’ efforts to taper economic growth, COVID-related uncertainties, various governmental and customer ESG initiatives and continued shifting of resource allocation to renewable energy.
Global demand for oil continues to experience growth, and we expect the current market conditions will maintain continued customer spending for the industry. Despite the current commodity price environment, uncertainties to commodity price stability persist, including regional conflicts, unrest in the Middle East, OPEC+ decisions, various governmental and customer sustainability initiatives and continued shifting of resource allocation to renewable energy.
Our consolidated net revenues increased by 29% in 2022 as compared to 2021, reflecting the addition of Shallow Water Abandonment segment in the third quarter 2022 and higher revenues from all of our segments. 40 Table of Contents Our Well Intervention revenues increased by 1% in 2022 as compared to 2021, primarily reflecting higher vessel utilization and rates in the Gulf of Mexico and the North Sea as well as higher utilization on the Siem Helix 1 during 2022, offset in part by lower utilization on the Q7000 due to its scheduled maintenance during 2022, lower rates on the Siem Helix 1 and the Siem Helix 2 as they transitioned from their legacy contracts with Petrobras, and a weaker British pound during 2022 as compared to 2021.
Our consolidated net revenues increased by 48% in 2023 as compared to 2022, reflecting the addition of Shallow Water Abandonment segment in the third quarter 2022 and higher revenues from all of our segments.
Utilization rates of chartered Robotics vessels in 2022 and 2021 included 420 and 477 spot vessel days, respectively, at near full utilization. (3) Consists of ROVs, trenchers and the IROV boulder grab. (4) Consists of liftboats, OSVs, DSVs, a heavy lift derrick barge and a crew boat. (5) Consists of marketable P&A and coiled tubing systems.
(3) Consists of ROVs, trenchers and the IROV boulder grab. (4) Consists of liftboats, OSVs, DSVs, a heavy lift derrick barge and a crew boat. (5) Consists of P&A and CT systems. 39 Table of Contents Intercompany segment amounts are derived primarily from equipment and services provided to other business segments.
The $16.1 million change in fair value of contingent consideration reflected an increase in the estimated earn-out payable in 2024 to the seller in the Alliance transaction as Helix Alliance’s 2022 results following the acquisition date and its expected 2023 results have both improved as compared to forecasts and information available at the time of acquisition (Notes 3 and 19).
The change in fair value of contingent consideration related to the Alliance acquisition reflects an increase in the value of the earn-out consideration expected to be paid in cash in April 2024 (Notes 3 and 19). Selling, General and Administrative Expenses.