Biggest changeThese forward-looking statements include, among other things, statements regarding: • the effects and impact of the emergence of new variants of the COVID-19 virus and government responses thereto; • the effect, impact, potential duration or timing, or other implications of the Russia-Ukraine conflict; • future Refining segment margins, including gasoline and distillate margins, and discounts; • future Renewable Diesel segment margins; • future Ethanol segment margins; • expectations regarding feedstock costs, including crude oil differentials, product prices for each of our segments, and operating expenses; • anticipated levels of crude oil and liquid transportation fuel inventories and storage capacity; • expectations regarding the levels of, and timing with respect to, the production and operations at our existing refineries and plants, and projects under construction; • our anticipated level of capital investments, including deferred turnaround and catalyst cost expenditures, our expected allocation between, and/or within, growth capital expenditures and sustaining capital expenditures, capital expenditures for environmental and other purposes, and joint venture investments, the expected timing applicable to such capital investments and any related projects, and the effect of those capital investments on our business, financial condition, results of operations, and liquidity; • our anticipated level of cash distributions or contributions, such as our dividend payment rate and contributions to our qualified pension plans and other postretirement benefit plans; 36 Table of Contents • our ability to meet future cash requirements, whether from funds generated from our operations or our ability to access financial markets effectively, and our ability to maintain sufficient liquidity; • our evaluation of, and expectations regarding, any future activity under our share purchase program or transactions involving our debt securities; • anticipated trends in the supply of, and demand for, crude oil and other feedstocks and refined petroleum products, renewable diesel, and ethanol and corn related co-products in the regions where we operate, as well as globally; • expectations regarding environmental, tax, and other regulatory matters, including the anticipated amounts and timing of payment with respect to our deferred tax liabilities, matters impacting our ability to repatriate cash held by our foreign subsidiaries, and the anticipated effect thereof on our business, financial condition, results of operations, and liquidity; • the effect of general economic and other conditions, including inflation and economic activity levels, on refining, renewable diesel, and ethanol industry fundamentals; • expectations regarding our risk management activities, including the anticipated effects of our hedge transactions; • expectations regarding our counterparties, including our ability to pass on increased compliance costs and timely collect receivables, and the credit risk within our accounts receivable or accounts payable; • expectations regarding adoptions of new, or changes to existing, low-carbon fuel standards or policies, blending and tax credits, or efficiency standards that impact demand for renewable fuels; and • expectations regarding our publicly announced GHG emissions reduction/displacement targets and our current and any future low-carbon projects.
Biggest changeThese forward-looking statements include, among other things, statements regarding: • the effect, impact, potential duration or timing, or other implications of global geopolitical and other conflicts and tensions; • future Refining segment margins, including gasoline and distillate margins, and discounts; • future Renewable Diesel segment margins; • future Ethanol segment margins; • expectations regarding feedstock costs, including crude oil differentials, product prices for each of our segments, transportation costs, and operating expenses; • anticipated levels of crude oil and liquid transportation fuel inventories and storage capacity; • expectations regarding the levels of, costs and timing with respect to, the production and operations at our existing refineries and plants, projects under evaluation, construction, or development, and former projects; • our anticipated level of capital investments, including deferred turnaround and catalyst cost expenditures, our expected allocation between, and/or within, growth capital expenditures and sustaining capital expenditures, capital expenditures for environmental and other purposes, and joint venture investments, the expected costs and timing applicable to such capital investments and any related projects, and the effect of those capital investments on our business, financial condition, results of operations, and liquidity; • our anticipated level of cash distributions or contributions, such as our dividend payment rate and contributions to our pension plans and other postretirement benefit plans; 39 Table of Contents • our ability to meet future cash and credit requirements, whether from funds generated from our operations or our ability to access financial markets effectively, and expectations regarding our liquidity; • our evaluation of, and expectations regarding, any future activity under our share purchase program or transactions involving our debt securities; • anticipated trends in the supply of, and demand for, crude oil and other feedstocks and refined petroleum products, renewable diesel, and ethanol and corn related co-products in the regions where we operate, as well as globally; • expectations regarding environmental, tax, and other regulatory matters, including SBx 1-2 and the matters discussed under “ITEM 3.
You can identify our forward-looking statements by the words “anticipate,” “believe,” “expect,” “plan,” “intend,” “scheduled,” “estimate,” “project,” “projection,” “predict,” “budget,” “forecast,” “goal,” “guidance,” “target,” “could,” “would,” “should,” “may,” “strive,” “seek,” “potential,” “opportunity,” “aimed,” “considering,” “continue,” and similar expressions.
You can identify our forward-looking statements by the words “anticipate,” “believe,” “expect,” “plan,” “intend,” “scheduled,” “estimate,” “project,” “projection,” “predict,” “budget,” “forecast,” “goal,” “guidance,” “target,” “ambition,” “could,” “would,” “should,” “may,” “strive,” “seek,” “potential,” “opportunity,” “aimed,” “considering,” “continue,” and similar expressions.
Non-GAAP financial measures are as follows: • Refining margin is defined as Refining segment operating income excluding the modification of RVO adjustment, operating expenses (excluding depreciation and amortization expense), depreciation and amortization expense, and other operating expenses, as reflected in the table below.
Non-GAAP financial measures are as follows (in millions): • Refining margin is defined as Refining segment operating income excluding the modification of RVO adjustment, operating expenses (excluding depreciation and amortization expense), depreciation and amortization expense, and other operating expenses, as reflected in the table below.
As of December 31, 2022, all of our ratings on our senior unsecured debt, including debt guaranteed by us, were at or above investment grade level as follows: Rating Agency Rating Moody’s Investors Service Baa2 (stable outlook) Standard & Poor’s Ratings Services BBB (stable outlook) Fitch Ratings BBB (stable outlook) We cannot provide assurance that these ratings will remain in effect for any given period of time or that one or more of these ratings will not be lowered or withdrawn entirely by a rating agency.
As of December 31, 2023, all of our ratings on our senior unsecured debt, including debt guaranteed by us, were at or above investment grade level as follows: Rating Agency Rating Moody’s Investors Service Baa2 (stable outlook) Standard & Poor’s Ratings Services BBB (stable outlook) Fitch Ratings BBB (stable outlook) We cannot provide assurance that these ratings will remain in effect for any given period of time or that one or more of these ratings will not be lowered or withdrawn entirely by a rating agency.
We have developed an extensive multi-year capital investment program, which we update and revise based on changing internal and external factors. The following table reflects our expected capital investments for the year ending December 31, 2023 by nature of the project and reportable segment, along with historical amounts for the years ended December 31, 2022 and 2021 (in millions).
We have developed an extensive multi-year capital investment program, which we update and revise based on changing internal and external factors. The following table reflects our expected capital investments for the year ending December 31, 2024 by nature of the project and reportable segment, along with historical amounts for the years ended December 31, 2023 and 2022 (in millions).
Regulatory compliance capital investments are generally associated with projects that are incurred to comply with government regulatory requirements, such as requirements to reduce emissions and prohibited elements from our products. • Growth capital investments , including low-carbon growth capital investments that support the development and growth of our low-carbon renewable diesel and ethanol businesses, are generally associated with projects for the construction of new property assets that are expected to 57 Table of Contents enhance our profitability and cash-generating capabilities, including investments in nonconsolidated joint ventures.
Regulatory compliance capital investments are generally associated with projects that are incurred to comply with government regulatory requirements, such as requirements to reduce emissions and prohibited elements from our products. • Growth capital investments , including low-carbon growth capital investments that support the development and growth of our low-carbon renewable diesel and ethanol businesses, are generally associated with projects for the construction of new property assets that are expected to enhance our profitability and cash-generating capabilities, including investments in nonconsolidated joint ventures.
The discussion for the year ended December 31, 2020 and comparison between the years ended December 31, 2021 and 2020 have been omitted from this annual report on Form 10-K for the year ended December 31, 2022, as such information can be found in “ITEM 7.
The discussion for the year ended December 31, 2021 and comparison between the years ended December 31, 2022 and 2021 have been omitted from this annual report on Form 10-K for the year ended December 31, 2023, as such information can be found in “ITEM 7.
Differences between actual performance or results and any future performance or results expressed, suggested, or forecast in these forward-looking statements could result from a variety of factors, including the following: • the effects arising out of the Russia-Ukraine conflict, including with respect to changes in trade flows and impacts to crude oil and other markets; • demand for, and supplies of, refined petroleum products (such as gasoline, diesel, jet fuel, and petrochemicals), renewable diesel, and ethanol and corn related co-products; • demand for, and supplies of, crude oil and other feedstocks; • the effects of public health threats, pandemics, and epidemics, such as the COVID-19 pandemic and variants of the virus, governmental and societal responses thereto, and the adverse impacts of the foregoing on our business, financial condition, results of operations, and liquidity, and the global economy and financial markets generally; • acts of terrorism aimed at either our refineries and plants or third-party facilities that could impair our ability to produce or transport refined petroleum products, renewable diesel, ethanol, or corn related co-products, to receive feedstocks, or otherwise operate efficiently; 37 Table of Contents • the effects of war or hostilities, and political and economic conditions, in countries that produce crude oil or other feedstocks or consume refined petroleum products, renewable diesel, ethanol or corn related co-products; • the ability of the members of OPEC to agree on and to maintain crude oil price and production controls; • the level of consumer demand, consumption, and overall economic activity, including the effects from seasonal fluctuations and market prices; • refinery, renewable diesel plant, or ethanol plant overcapacity or undercapacity; • the risk that any transactions may not provide the anticipated benefits or may result in unforeseen detriments; • the actions taken by competitors, including both pricing and adjustments to refining capacity or renewable fuels production in response to market conditions; • the level of competitors’ imports into markets that we supply; • accidents, unscheduled shutdowns, weather events, civil unrest, expropriation of assets, and other economic, diplomatic, legislative, or political events or developments, terrorism, cyberattacks, or other catastrophes or disruptions affecting our operations, production facilities, machinery, pipelines and other logistics assets, equipment, or information systems, or any of the foregoing of our suppliers, customers, or third-party service providers; • changes in the cost or availability of transportation or storage capacity for feedstocks and our products; • political pressure and influence of environmental groups and other stakeholders upon policies and decisions related to the production, transportation, storage, refining, processing, marketing, and sales of crude oil or other feedstocks, refined petroleum products, renewable diesel, ethanol, or corn related co-products; • the price, availability, technology related to, and acceptance of alternative fuels and alternative-fuel vehicles, as well as sentiment and perceptions with respect to GHG emissions more generally; • the levels of government subsidies for, and executive orders, mandates, or other policies with respect to, alternative fuels, alternative-fuel vehicles, and other low-carbon technologies or initiatives, including those related to carbon capture, carbon sequestration, and low-carbon fuels, or affecting the price of natural gas and/or electricity; • the volatility in the market price of compliance credits (primarily RINs needed to comply with the RFS) under the Renewable and Low-Carbon Fuel Programs and emission credits needed under other environmental emissions programs; • delay of, cancellation of, or failure to implement planned capital or other projects and realize the various assumptions and benefits projected for such projects or cost overruns in constructing such planned capital projects; • earthquakes, hurricanes, tornadoes, winter storms, and other weather events, which can unforeseeably affect the price or availability of electricity, natural gas, crude oil, waste and renewable feedstocks, corn, and other feedstocks, critical supplies, refined petroleum products, renewable diesel, and ethanol; • rulings, judgments, or settlements in litigation or other legal or regulatory matters, including unexpected environmental remediation costs, in excess of any reserves or insurance coverage; • legislative or regulatory action, including the introduction or enactment of legislation or rulemakings by government authorities, environmental regulations, changes to income tax rates, introduction of a global minimum tax, windfall taxes or penalties, tax changes or restrictions impacting the foreign repatriation of cash, actions implemented under the Renewable and Low-Carbon Fuel Programs and other environmental emissions programs, including changes to volume requirements or other obligations or exemptions under the RFS, and actions arising from 38 Table of Contents the EPA’s or other government agencies’ regulations, policies, or initiatives concerning GHGs, including mandates for or bans of specific technology, which may adversely affect our business or operations; • changing economic, regulatory, and political environments and related events in the various countries in which we operate or otherwise do business, including trade restrictions, expropriation or impoundment of assets, failure of foreign governments and state-owned entities to honor their contracts, property disputes, economic instability, restrictions on the transfer of funds, duties and tariffs, transportation delays, import and export controls, labor unrest, security issues involving key personnel, and decisions, investigations, regulations, issuances or revocations of permits and other authorizations, and other actions, policies, and initiatives by the states, counties, cities, and other jurisdictions in the countries in which we operate or otherwise do business; • changes in the credit ratings assigned to our debt securities and trade credit; • the operating, financing, and distribution decisions of our joint ventures or other joint venture members that we do not control; • changes in currency exchange rates, including the value of the Canadian dollar, the pound sterling, the euro, the Mexican peso, and the Peruvian sol relative to the U.S. dollar; • the adequacy of capital resources and liquidity, including availability, timing, and amounts of cash flow or our ability to borrow or access financial markets; • the costs, disruption, and diversion of resources associated with campaigns and negative publicity commenced by investors, stakeholders, or other interested parties; • overall economic conditions, including the stability and liquidity of financial markets, and the effect thereof on consumer demand; and • other factors generally described in the “RISK FACTORS” section included in “ITEM 1A.
Differences between actual performance or results and any future performance or results expressed, suggested, or forecast in these forward-looking statements could result from a variety of factors, including the following: • the effects arising out of global geopolitical and other conflicts and tensions, including with respect to changes in trade flows and impacts to crude oil and other markets; • demand for, and supplies of, refined petroleum products (such as gasoline, diesel, jet fuel, and petrochemicals), renewable diesel, and ethanol and corn related co-products; • demand for, and supplies of, crude oil and other feedstocks; • the effects of public health threats, pandemics, and epidemics, such as the COVID-19 pandemic and variants of the virus, governmental and societal responses thereto, and the adverse impacts of the foregoing on our business, financial condition, results of operations, and liquidity, and the global economy and financial markets generally; 40 Table of Contents • acts of terrorism aimed at either our refineries and plants or third-party facilities that could impair our ability to produce or transport refined petroleum products, renewable diesel, ethanol, or corn related co-products, to receive feedstocks, or otherwise operate efficiently; • the effects of war or hostilities, and political and economic conditions, in countries that produce crude oil or other feedstocks or consume refined petroleum products, renewable diesel, ethanol or corn related co-products; • the ability of the members of OPEC, and other petroleum-producing nations that collectively make up OPEC+ , to agree on and to maintain crude oil price and production controls; • the level of consumer demand, consumption, and overall economic activity, including the effects from seasonal fluctuations and market prices; • refinery, renewable diesel plant, or ethanol plant overcapacity or undercapacity; • the risk that any transactions may not provide the anticipated benefits or may result in unforeseen detriments; • the actions taken by competitors, including both pricing and adjustments to refining capacity or renewable fuels production in response to market conditions; • the level of competitors’ imports into markets that we supply; • accidents, unscheduled shutdowns, weather events, civil unrest, expropriation of assets, and other economic, diplomatic, legislative, societal, or political events or developments, terrorism, cyberattacks, or other catastrophes or disruptions affecting our operations, production facilities, machinery, pipelines and other logistics assets, equipment, or information systems, or any of the foregoing of our suppliers, customers, or third-party service providers; • changes in the cost or availability of transportation or storage capacity for feedstocks and our products; • pressure and influence of environmental groups and other stakeholders upon policies and decisions related to the production, transportation, storage, refining, processing, marketing, and sales of crude oil or other feedstocks, refined petroleum products, renewable diesel, ethanol, or corn related co-products; • the price, availability, technology related to, and acceptance of alternative fuels and alternative-fuel vehicles, as well as sentiment and perceptions with respect to low-carbon projects and GHG emissions more generally; • the levels of government subsidies for, and executive orders, mandates, or other policies with respect to, alternative fuels, alternative-fuel vehicles, and other low-carbon technologies or initiatives, including those related to carbon capture, carbon sequestration, and low-carbon fuels, or affecting the price of natural gas and/or electricity; • the volatility in the market price of compliance credits (primarily RINs needed to comply with the RFS) under the Renewable and Low-Carbon Fuel Programs and emission credits needed under other environmental emissions programs; • delay of, cancellation of, or failure to implement planned capital or other strategic projects and realize the various assumptions and benefits projected for such projects or cost overruns in constructing such planned projects; • earthquakes, hurricanes, tornadoes, winter storms, droughts, floods, wildfires, and other weather events, which can unforeseeably affect the price or availability of electricity, natural gas, crude oil, waste and renewable feedstocks, corn, and other feedstocks, critical supplies, refined petroleum products, renewable diesel, and ethanol; • rulings, judgments, or settlements in litigation or other legal or regulatory matters, such as unexpected environmental remediation or enforcement costs, including those in excess of any reserves or insurance coverage; • legislative or regulatory action, including the introduction or enactment of legislation or rulemakings by government authorities, environmental regulations, changes to income tax rates, 41 Table of Contents introduction of a global minimum tax, windfall taxes or penalties, tax changes or restrictions impacting the foreign repatriation of cash, actions implemented under SBx 1-2, actions implemented under the Renewable and Low-Carbon Fuel Programs and other environmental emissions programs, including changes to volume requirements or other obligations or exemptions under the RFS, and actions arising from the EPA’s or other government agencies’ regulations, policies, or initiatives concerning GHGs, including mandates for or bans of specific technology, which may adversely affect our business or operations; • changing economic, regulatory, and political environments and related events in the various countries in which we operate or otherwise do business, including trade restrictions, expropriation or impoundment of assets, failure of foreign governments and state-owned entities to honor their contracts, property disputes, economic instability, restrictions on the transfer of funds, duties and tariffs, transportation delays, import and export controls, labor unrest, security issues involving key personnel, and decisions, investigations, regulations, issuances or revocations of permits and other authorizations, and other actions, policies, and initiatives by the states, counties, cities, and other jurisdictions in the countries in which we operate or otherwise do business; • changes in the credit ratings assigned to our debt securities and trade credit; • the operating, financing, and distribution decisions of our joint ventures or other joint venture members that we do not control; • changes in currency exchange rates, including the value of the Canadian dollar, the pound sterling, the euro, the Mexican peso, and the Peruvian sol relative to the U.S. dollar; • the adequacy of capital resources and liquidity, including availability, timing, and amounts of cash flow or our ability to borrow or access financial markets; • the costs, disruption, and diversion of resources associated with lawsuits, demands, or investigations, or campaigns and negative publicity commenced by government authorities, investors, stakeholders, or other interested parties; • overall economic conditions, including the stability and liquidity of financial markets, and the effect thereof on consumer demand; and • other factors generally described in the “RISK FACTORS” section included in “ITEM 1A.
The debt issuance, borrowings, and repayments are described in Note 8 of Notes to Consolidated Financial Statements. As previously noted, our operations generated $12.6 billion of cash in 2022, driven primarily by net income of $11.9 billion and noncash charges to income of $2.3 billion, partially offset by an unfavorable change in working capital of $1.6 billion.
The debt issuance, borrowings, and repayments are described in Note 9 of Notes to Consolidated Financial Statements. 58 Table of Contents As previously noted, our operations generated $12.6 billion of cash in 2022, driven primarily by net income of $11.9 billion and noncash charges to income of $2.3 billion, partially offset by an unfavorable change in working capital of $1.6 billion.
The amount outstanding associated with the IEnova Revolver, as defined and described in Note 8 of Notes to Consolidated Financial Statements, is reflected in current portion of debt and finance lease obligations in our balance sheet as of December 31, 2022, and also included in the table above in debt obligations – short-term.
The amount outstanding associated with the IEnova Revolver, as defined and described in Note 9 of Notes to Consolidated Financial Statements, is reflected in current portion of debt and finance lease obligations in our balance sheet as of December 31, 2023, and also included in the table above in debt obligations – short-term.
These judgments and estimates are subject to change due to many factors, including the progress of ongoing tax audits, case law, and changes in legislation. 62 Table of Contents Details of our liability for unrecognized tax benefits, along with other information about our unrecognized tax benefits, are included in Note 14 of Notes to Consolidated Financial Statements.
These judgments and estimates are subject to change due to many factors, including the progress of ongoing tax audits, case law, and changes in legislation. Details of our changes in unrecognized tax benefits, along with other information about our unrecognized tax benefits, are included in Note 15 of Notes to Consolidated Financial Statements.
Year Ended December 31, 2022 2021 Reconciliation of Renewable Diesel operating income to Renewable Diesel margin Renewable Diesel operating income $ 774 $ 709 Adjustments: Operating expenses (excluding depreciation and amortization expense) 255 134 Depreciation and amortization expense 122 58 Other operating expenses — 3 Renewable Diesel margin $ 1,151 $ 904 • Ethanol margin is defined as Ethanol segment operating income excluding operating expenses (excluding depreciation and amortization expense), depreciation and amortization expense, the asset impairment loss, and other operating expenses, as reflected in the table below.
Year Ended December 31, 2023 2022 Reconciliation of Renewable Diesel operating income to Renewable Diesel margin Renewable Diesel operating income $ 852 $ 774 Adjustments: Operating expenses (excluding depreciation and amortization expense) 358 255 Depreciation and amortization expense 231 122 Renewable Diesel margin $ 1,441 $ 1,151 • Ethanol margin is defined as Ethanol segment operating income excluding operating expenses (excluding depreciation and amortization expense), depreciation and amortization expense, the asset impairment loss, and other operating expenses, as reflected in the table below.
The components of our liquidity and descriptions of our cash flows, capital investments, and other matters impacting our liquidity and capital resources can be found below under “LIQUIDITY AND CAPITAL RESOURCES.” 40 Table of Contents Results for the Year Ended December 31, 2022 For 2022, we reported net income attributable to Valero stockholders of $11.5 billion compared to $930 million for 2021.
The components of our liquidity and descriptions of our cash flows, capital investments, and other matters impacting our liquidity and capital resources can be found below under “LIQUIDITY AND CAPITAL RESOURCES” beginning on page 57 . 43 Table of Contents Results for the Year Ended December 31, 2023 For 2023, we reported net income attributable to Valero stockholders of $8.8 billion compared to $11.5 billion for 2022.
Year Ended December 31, 2022 2021 Reconciliation of Ethanol operating income to adjusted Ethanol operating income Ethanol operating income $ 110 $ 473 Adjustments: Gain on sale of ethanol plant (see note (c)) (23) — Asset impairment loss (see note (d)) 61 — Change in estimated useful life of ethanol plant (see note (c)) — 48 Other operating expenses 3 1 Adjusted Ethanol operating income $ 151 $ 522 • Adjusted operating income is defined as total company operating income excluding the modification of RVO adjustment, the gain on sale of ethanol plant, the asset impairment loss, the change in estimated useful life of ethanol plant, the environmental reserve adjustment, and other operating expenses, as reflected in the table below.
Year Ended December 31, 2023 2022 Reconciliation of Ethanol operating income to adjusted Ethanol operating income Ethanol operating income $ 553 $ 110 Adjustments: Gain on sale of ethanol plant (see note (b)) — (23) Asset impairment loss (see note (c)) — 61 Other operating expenses 16 3 Adjusted Ethanol operating income $ 569 $ 151 • Adjusted operating income is defined as total company operating income excluding the modification of RVO adjustment, the gain on sale of ethanol plant, the asset impairment loss, the environmental reserve adjustment, and other operating expenses, as reflected in the table below.
The debt issuances, borrowings, and repayments are described in Note 8 of Notes to Consolidated Financial Statements. As previously noted, our operations generated $5.9 billion of cash in 2021, driven primarily by noncash charges to income of $2.3 billion, a positive change in working capital of $2.2 billion, and net income of $1.3 billion.
The debt borrowings and repayments are described in Note 9 of Notes to Consolidated Financial Statements. As previously noted, our operations generated $9.2 billion of cash in 2023, driven primarily by net income of $9.1 billion and noncash charges to income of $2.4 billion, partially offset by an unfavorable change in working capital of $2.3 billion.
(d) Our ethanol plant located in Lakota, Iowa (Lakota ethanol plant) is currently configured to produce a higher-grade ethanol product, as opposed to fuel-grade ethanol, suitable for hand sanitizer blending or industrial purposes that has a higher market value than fuel-grade ethanol. During 2022, demand for higher-grade ethanol declined and had a negative impact on the profitability of the plant.
(c) Our ethanol plant located in Lakota, Iowa (Lakota ethanol plant) was previously configured to produce USP-grade ethanol, a higher grade ethanol suitable for hand sanitizer blending that has a higher market value than fuel-grade ethanol. During 2022, demand for USP-grade ethanol declined and had a negative impact on the profitability of the plant.
Year Ended December 31, 2022 2021 Reconciliation of Refining operating income to Refining margin Refining operating income $ 15,803 $ 1,862 Adjustments: Modification of RVO (see note (a)) (104) (1) Operating expenses (excluding depreciation and amortization expense) (see note (b)) 5,509 5,088 Depreciation and amortization expense 2,247 2,169 Other operating expenses 63 83 Refining margin $ 23,518 $ 9,201 52 Table of Contents • Renewable Diesel margin is defined as Renewable Diesel segment operating income excluding operating expenses (excluding depreciation and amortization expense), depreciation and amortization expense, and other operating expenses, as reflected in the table below.
Year Ended December 31, 2023 2022 Reconciliation of Refining operating income to Refining margin Refining operating income $ 11,511 $ 15,803 Adjustments: Modification of RVO (see note (a)) — (104) Operating expenses (excluding depreciation and amortization expense) 5,208 5,509 Depreciation and amortization expense 2,351 2,247 Other operating expenses 17 63 Refining margin $ 19,087 $ 23,518 54 Table of Contents • Renewable Diesel margin is defined as Renewable Diesel segment operating income excluding operating expenses (excluding depreciation and amortization expense) and depreciation and amortization expense, as reflected in the table below.
RISK FACTORS—Legal, Government, and Regulatory Risks— Legal, political, and regulatory developments regarding climate, GHG emissions, or the environment could adversely affect our business, financial condition, results of operations, and liquidity. ” CRITICAL ACCOUNTING ESTIMATES The preparation of financial statements in accordance with GAAP requires us to make estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes.
RISK FACTORS—Legal, Government, and Regulatory Risks— We are subject to risks arising from legal, political, and regulatory developments regarding climate, GHG emissions, and the environment.” 63 Table of Contents CRITICAL ACCOUNTING ESTIMATES The preparation of financial statements in accordance with GAAP requires us to make estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes.
We have not entered into any transactions, agreements, or other contractual arrangements that would result in off-balance sheet liabilities. Other Matters Impacting Liquidity and Capital Resources Stock Purchase Program During the year ended December 31, 2022, we purchased for treasury 37,999,481 of our shares for $4.6 billion.
We have not entered into any transactions, agreements, or other contractual arrangements that would result in off-balance sheet liabilities. 62 Table of Contents Other Matters Impacting Liquidity and Capital Resources Stock Purchase Programs During the year ended December 31, 2023, we purchased for treasury 39,717,265 of our shares for a total cost of $5.2 billion.
The following table also reflects capital investments attributable to Valero, which is a non-GAAP measure that we define and reconcile to capital investments below under “Capital Investments Attributable to Valero.” Year Ending December 31, 2023 (a) Year Ended December 31, 2022 2021 Capital investments by nature of the project (b): Sustaining capital investments $ 1,595 $ 1,368 $ 1,129 Growth capital investments: Low-carbon growth capital investments 225 836 1,042 Other growth capital investments 200 534 296 Total growth capital investments 425 1,370 1,338 Total capital investments $ 2,020 $ 2,738 $ 2,467 Capital investments by segment: Refining $ 1,570 $ 1,764 $ 1,378 Renewable Diesel 280 879 1,048 Ethanol 70 22 15 Corporate 100 73 26 Total capital investments 2,020 2,738 2,467 Adjustments: Renewable Diesel capital investments attributable to the other joint venture member in DGD (140) (439) (524) Capital expenditures of other VIEs — (40) (110) Capital investments attributable to Valero $ 1,880 $ 2,259 $ 1,833 ________________________ (a) All expected amounts for the year ending December 31, 2023 exclude capital expenditures that the consolidated VIEs (other than DGD) may incur because we do not operate those VIEs.
The following table also reflects capital investments attributable to Valero, which is a non-GAAP measure 59 Table of Contents that we define and reconcile to capital investments below under “Capital Investments Attributable to Valero.” Year Ending December 31, 2024 (a) Year Ended December 31, 2023 2022 Capital investments by nature of the project (b): Sustaining capital investments $ 1,620 $ 1,486 $ 1,368 Growth capital investments: Low-carbon growth capital investments 345 237 836 Other growth capital investments 200 193 534 Total growth capital investments 545 430 1,370 Total capital investments $ 2,165 $ 1,916 $ 2,738 Capital investments by segment: Refining $ 1,605 $ 1,488 $ 1,764 Renewable Diesel 430 294 879 Ethanol 60 43 22 Corporate 70 91 73 Total capital investments 2,165 1,916 2,738 Adjustments: Renewable Diesel capital investments attributable to the other joint venture member in DGD (215) (147) (439) Capital expenditures of other VIEs — (11) (40) Capital investments attributable to Valero $ 1,950 $ 1,758 $ 2,259 ________________________ (a) All expected amounts for the year ending December 31, 2024 exclude capital expenditures that the consolidated VIEs (other than DGD) may incur because we do not operate those VIEs.
Year Ended December 31, 2022 2021 Change Operating income $ 110 $ 473 $ (363) Adjusted operating income (see note (h)) 151 522 (371) Ethanol margin (see note (h)) $ 858 $ 1,161 $ (303) Operating expenses (excluding depreciation and amortization expense reflected below) (see note (b)) 625 556 69 Depreciation and amortization expense (see note (c)) 59 131 (72) Asset impairment loss (see note (d)) 61 — 61 Production volumes (thousand gallons per day) (see note (i)) 3,866 3,949 (83) Ethanol segment operating income decreased by $363 million in 2022 compared to 2021; however, Ethanol segment adjusted operating income, which excludes the adjustments in the table in note (h), 49 Table of Contents decreased by $371 million in 2022 compared to 2021.
Year Ended December 31, 2023 2022 Change Operating income $ 553 $ 110 $ 443 Adjusted operating income (see note (h)) 569 151 418 Ethanol margin (see note (h)) 1,164 858 306 Operating expenses (excluding depreciation and amortization expense reflected below) 515 625 (110) Depreciation and amortization expense (see note (b)) 80 59 21 Asset impairment loss (see note (c)) — 61 (61) Production volumes (thousand gallons per day) (see note (i)) 4,367 3,866 501 Ethanol segment operating income increased by $443 million in 2023 compared to 2022; however, Ethanol segment adjusted operating income, which excludes the adjustments in the table in note (h), increased by $418 million in 2023 compared to 2022.
Cash Flows Components of our cash flows are set forth below (in millions): Year Ended December 31, 2022 2021 Cash flows provided by (used in): Operating activities $ 12,574 $ 5,859 Investing activities (2,805) (2,159) Financing activities: Debt issuances and borrowings 3,153 1,828 Repayments of debt and finance lease obligations (including premiums paid on early redemption and retirement of debt) (6,019) (3,214) Return to stockholders: Purchases of common stock for treasury (4,577) (27) Common stock dividend payments (1,562) (1,602) Return to stockholders (6,139) (1,629) Other financing activities 156 169 Financing activities (8,849) (2,846) Effect of foreign exchange rate changes on cash (180) (45) Net increase in cash and cash equivalents $ 740 $ 809 Cash Flows for the Year Ended December 31, 2022 In 2022, we used the $12.6 billion of cash generated by our operations and the $3.2 billion in debt issuances and borrowings to make $2.8 billion of investments in our business, repay $6.0 billion of debt and finance lease obligations (including premiums paid on the early retirement of debt), return $6.1 billion to our stockholders through purchases of our common stock for treasury and dividend payments, and increase our available cash on hand by $740 million.
However, there can be no assurances regarding the availability of any future financings or additional credit facilities or whether such financings or additional credit facilities can be made available on terms that are acceptable to us. 57 Table of Contents Cash Flows Components of our cash flows are set forth below (in millions): Year Ended December 31, 2023 2022 Cash flows provided by (used in): Operating activities $ 9,229 $ 12,574 Investing activities (1,865) (2,805) Financing activities: Debt issuance and borrowings 2,420 3,153 Repayments of debt and finance lease obligations (including premiums paid on early retirement of debt) (2,687) (6,019) Return to stockholders: Purchases of common stock for treasury (5,136) (4,577) Common stock dividend payments (1,452) (1,562) Return to stockholders (6,588) (6,139) Other financing activities (86) 156 Financing activities (6,941) (8,849) Effect of foreign exchange rate changes on cash 139 (180) Net increase in cash and cash equivalents $ 562 $ 740 Cash Flows for the Year Ended December 31, 2023 In 2023, we used the $9.2 billion of cash generated by our operations and the $2.4 billion in debt borrowings to make $1.9 billion of investments in our business, repay $2.7 billion of debt and finance lease obligations (including premiums paid on the early retirement of debt), return $6.6 billion to our stockholders through purchases of our common stock for treasury and dividend payments, and increase our available cash on hand by $562 million.
(b) Capital investments attributable to Valero by nature of the project are as follows (in millions): Year Ending December 31, 2023 Year Ended December 31, 2022 2021 Sustaining capital investments $ 1,550 $ 1,340 $ 1,105 Growth capital investments: Low-carbon growth capital investments 130 422 538 Other growth capital investments 200 497 190 Total growth capital investments 330 919 728 Capital investments attributable to Valero $ 1,880 $ 2,259 $ 1,833 58 Table of Contents We have publicly announced GHG emissions reduction/displacement targets for 2025 and 2035.
(b) Capital investments attributable to Valero by nature of the project are as follows (in millions): Year Ending December 31, 2024 Year Ended December 31, 2023 2022 Sustaining capital investments $ 1,565 $ 1,449 $ 1,340 Growth capital investments: Low-carbon growth capital investments 185 126 422 Other growth capital investments 200 183 497 Total growth capital investments 385 309 919 Capital investments attributable to Valero $ 1,950 $ 1,758 $ 2,259 We have publicly announced GHG emissions reduction/displacement targets and a long-term ambition.
Year Ended December 31, 2022 2021 Reconciliation of Refining operating income to adjusted Refining operating income Refining operating income $ 15,803 $ 1,862 Adjustments: Modification of RVO (see note (a)) (104) (1) Other operating expenses 63 83 Adjusted Refining operating income $ 15,762 $ 1,944 53 Table of Contents • Adjusted Renewable Diesel operating income is defined as Renewable Diesel segment operating income excluding other operating expenses, as reflected in the table below.
Year Ended December 31, 2023 2022 Reconciliation of Refining operating income to adjusted Refining operating income Refining operating income $ 11,511 $ 15,803 Adjustments: Modification of RVO (see note (a)) — (104) Other operating expenses 17 63 Adjusted Refining operating income $ 11,528 $ 15,762 55 Table of Contents • Adjusted Ethanol operating income is defined as Ethanol segment operating income excluding the gain on sale of ethanol plant, the asset impairment loss, and other operating expenses, as reflected in the table below.
Year Ended December 31, 2022 2021 Reconciliation of total company operating income to adjusted operating income Total company operating income $ 15,690 $ 2,130 Adjustments: Modification of RVO (see note (a)) (104) (1) Gain on sale of ethanol plant (see note (c)) (23) — Asset impairment loss (see note (d)) 61 — Change in estimated useful life of ethanol plant (see note (c)) — 48 Environmental reserve adjustment (see note (e)) 20 — Other operating expenses 66 87 Adjusted operating income $ 15,710 $ 2,264 54 Table of Contents (i) We use throughput volumes, sales volumes, and production volumes for the Refining segment, Renewable Diesel segment, and Ethanol segment, respectively, due to their general use by others who operate facilities similar to those included in our segments.
Year Ended December 31, 2023 2022 Reconciliation of total company operating income to adjusted operating income Total company operating income $ 11,858 $ 15,690 Adjustments: Modification of RVO (see note (a)) — (104) Gain on sale of ethanol plant (see note (b)) — (23) Asset impairment loss (see note (c)) — 61 Environmental reserve adjustment (see note (d)) — 20 Other operating expenses 33 66 Adjusted operating income $ 11,891 $ 15,710 (i) We use throughput volumes, sales volumes, and production volumes for the Refining segment, Renewable Diesel segment, and Ethanol segment, respectively, due to their general use by others who operate facilities similar to those included in our segments. 56 Table of Contents LIQUIDITY AND CAPITAL RESOURCES Our Liquidity Our liquidity consisted of the following as of December 31, 2023 (in millions): Available capacity from our committed facilities (a): Valero Revolver $ 3,996 Accounts receivable sales facility 1,300 Total available capacity 5,296 Cash and cash equivalents (b) 5,164 Total liquidity $ 10,460 _______________________ (a) Excludes the committed facilities of the consolidated VIEs.
Financial Highlights by Segment and Total Company (millions of dollars) Year Ended December 31, 2022 Refining Renewable Diesel Ethanol Corporate and Eliminations Total Revenues: Revenues from external customers $ 168,154 $ 3,483 $ 4,746 $ — $ 176,383 Intersegment revenues 56 2,018 740 (2,814) — Total revenues 168,210 5,501 5,486 (2,814) 176,383 Cost of sales: Cost of materials and other (a) 144,588 4,350 4,628 (2,796) 150,770 Operating expenses (excluding depreciation and amortization expense reflected below) 5,509 255 625 — 6,389 Depreciation and amortization expense (c) 2,247 122 59 — 2,428 Total cost of sales 152,344 4,727 5,312 (2,796) 159,587 Asset impairment loss (d) — — 61 — 61 Other operating expenses 63 — 3 — 66 General and administrative expenses (excluding depreciation and amortization expense reflected below) (e) — — — 934 934 Depreciation and amortization expense — — — 45 45 Operating income by segment $ 15,803 $ 774 $ 110 $ (997) 15,690 Other income, net (f) 179 Interest and debt expense, net of capitalized interest (562) Income before income tax expense 15,307 Income tax expense (g) 3,428 Net income 11,879 Less: Net income attributable to noncontrolling interests 351 Net income attributable to Valero Energy Corporation stockholders $ 11,528 43 Table of Contents Financial Highlights by Segment and Total Company (continued) (millions of dollars) Year Ended December 31, 2021 Refining Renewable Diesel Ethanol Corporate and Eliminations Total Revenues: Revenues from external customers $ 106,947 $ 1,874 $ 5,156 $ — $ 113,977 Intersegment revenues 14 468 433 (915) — Total revenues 106,961 2,342 5,589 (915) 113,977 Cost of sales: Cost of materials and other (b) 97,759 1,438 4,428 (911) 102,714 Operating expenses (excluding depreciation and amortization expense reflected below) (b) 5,088 134 556 (2) 5,776 Depreciation and amortization expense (c) 2,169 58 131 — 2,358 Total cost of sales 105,016 1,630 5,115 (913) 110,848 Other operating expenses 83 3 1 — 87 General and administrative expenses (excluding depreciation and amortization expense reflected below) — — — 865 865 Depreciation and amortization expense — — — 47 47 Operating income by segment $ 1,862 $ 709 $ 473 $ (914) 2,130 Other income, net (f) 16 Interest and debt expense, net of capitalized interest (603) Income before income tax expense 1,543 Income tax expense (g) 255 Net income 1,288 Less: Net income attributable to noncontrolling interests 358 Net income attributable to Valero Energy Corporation stockholders $ 930 44 Table of Contents Average Market Reference Prices and Differentials Year Ended December 31, 2022 2021 Refining Feedstocks (dollars per barrel) Brent crude oil $ 98.86 $ 70.79 Brent less West Texas Intermediate (WTI) crude oil 4.43 2.83 Brent less WTI Houston crude oil 2.82 1.91 Brent less Dated Brent crude oil (2.22) 0.03 Brent less Alaska North Slope (ANS) crude oil 0.06 0.35 Brent less Argus Sour Crude Index crude oil 7.42 3.92 Brent less Maya crude oil 11.68 6.48 Brent less Western Canadian Select Houston crude oil 15.55 7.40 WTI crude oil 94.43 67.97 Natural gas (dollars per million British Thermal Units) 5.83 7.85 Product margins (dollars per barrel) U.S.
Financial Highlights by Segment and Total Company (millions of dollars) Year Ended December 31, 2023 Refining Renewable Diesel Ethanol Corporate and Eliminations Total Revenues: Revenues from external customers $ 136,470 $ 3,823 $ 4,473 $ — $ 144,766 Intersegment revenues 18 3,168 1,086 (4,272) — Total revenues 136,488 6,991 5,559 (4,272) 144,766 Cost of sales: Cost of materials and other 117,401 5,550 4,395 (4,259) 123,087 Operating expenses (excluding depreciation and amortization expense reflected below) 5,208 358 515 8 6,089 Depreciation and amortization expense 2,351 231 80 (4) 2,658 Total cost of sales 124,960 6,139 4,990 (4,255) 131,834 Other operating expenses 17 — 16 — 33 General and administrative expenses (excluding depreciation and amortization expense reflected below) — — — 998 998 Depreciation and amortization expense — — — 43 43 Operating income by segment $ 11,511 $ 852 $ 553 $ (1,058) 11,858 Other income, net (e) 502 Interest and debt expense, net of capitalized interest (592) Income before income tax expense 11,768 Income tax expense 2,619 Net income 9,149 Less: Net income attributable to noncontrolling interests 314 Net income attributable to Valero Energy Corporation stockholders $ 8,835 46 Table of Contents Financial Highlights by Segment and Total Company (continued) (millions of dollars) Year Ended December 31, 2022 Refining Renewable Diesel Ethanol Corporate and Eliminations Total Revenues: Revenues from external customers $ 168,154 $ 3,483 $ 4,746 $ — $ 176,383 Intersegment revenues 56 2,018 740 (2,814) — Total revenues 168,210 5,501 5,486 (2,814) 176,383 Cost of sales: Cost of materials and other (a) 144,588 4,350 4,628 (2,796) 150,770 Operating expenses (excluding depreciation and amortization expense reflected below) 5,509 255 625 — 6,389 Depreciation and amortization expense (b) 2,247 122 59 — 2,428 Total cost of sales 152,344 4,727 5,312 (2,796) 159,587 Asset impairment loss (c) — — 61 — 61 Other operating expenses 63 — 3 — 66 General and administrative expenses (excluding depreciation and amortization expense reflected below) (d) — — — 934 934 Depreciation and amortization expense — — — 45 45 Operating income by segment $ 15,803 $ 774 $ 110 $ (997) 15,690 Other income, net (e) 179 Interest and debt expense, net of capitalized interest (562) Income before income tax expense 15,307 Income tax expense (f) 3,428 Net income 11,879 Less: Net income attributable to noncontrolling interests 351 Net income attributable to Valero Energy Corporation stockholders $ 11,528 47 Table of Contents Average Market Reference Prices and Differentials Year Ended December 31, 2023 2022 Refining Feedstocks (dollars per barrel) Brent crude oil $ 82.27 $ 98.86 Brent less West Texas Intermediate (WTI) crude oil 4.60 4.43 Brent less WTI Houston crude oil 3.15 2.82 Brent less Dated Brent crude oil (0.44) (2.22) Brent less Argus Sour Crude Index crude oil 5.34 7.42 Brent less Maya crude oil 13.33 11.68 Brent less Western Canadian Select Houston crude oil 12.15 15.55 WTI crude oil 77.67 94.43 Natural gas (dollars per million British thermal units) 2.23 5.83 RVO (dollars per barrel) (g) 7.02 7.72 Product margins (RVO adjusted unless otherwise noted) (dollars per barrel) U.S.
In addition, this non-GAAP measure may not be comparable to similarly titled measures used by other companies because we may define it differently, which may diminish its utility. 59 Table of Contents Year Ended December 31, 2022 2021 Reconciliation of capital investments to capital investments attributable to Valero Capital expenditures (excluding VIEs) $ 788 $ 513 Capital expenditures of VIEs: DGD 853 1,042 Other VIEs 40 110 Deferred turnaround and catalyst cost expenditures (excluding VIEs) 1,030 787 Deferred turnaround and catalyst cost expenditures of DGD 26 6 Investments in nonconsolidated joint ventures 1 9 Capital investments 2,738 2,467 Adjustments: DGD’s capital investments attributable to our joint venture member (439) (524) Capital expenditures of other VIEs (40) (110) Capital investments attributable to Valero $ 2,259 $ 1,833 Contractual Obligations Below is a summary of our contractual obligations (in millions) as of December 31, 2022 that are expected to be paid within the next year and thereafter.
Year Ended December 31, 2023 2022 Reconciliation of capital investments to capital investments attributable to Valero Capital expenditures (excluding VIEs) $ 665 $ 788 Capital expenditures of VIEs: DGD 235 853 Other VIEs 11 40 Deferred turnaround and catalyst cost expenditures (excluding VIEs) 946 1,030 Deferred turnaround and catalyst cost expenditures of DGD 59 26 Investments in nonconsolidated joint ventures — 1 Capital investments 1,916 2,738 Adjustments: DGD’s capital investments attributable to our joint venture member (147) (439) Capital expenditures of other VIEs (11) (40) Capital investments attributable to Valero $ 1,758 $ 2,259 61 Table of Contents Contractual Obligations Below is a summary of our contractual obligations (in millions) as of December 31, 2023 that are expected to be paid within the next year and thereafter.
On February 23, 2023, our Board authorized our purchase of up to an additional $2.5 billion of our outstanding common stock with no expiration date, which is in addition to the amount remaining under the October 2022 Program.
As of December 31, 2023, we had $2.2 billion remaining available for purchase under the September 2023 Program. On February 22, 2024, our Board authorized us to purchase shares of our outstanding common stock for a total cost of up to $2.5 billion with no expiration date, which is in addition to the amount remaining under the September 2023 Program.
Our investing activities of $2.8 billion primarily consisted of $2.7 billion in capital investments, as defined below under “Capital Investments,” of which $879 million related to capital investments made by DGD and $40 million related to capital expenditures of VIEs other than DGD. 56 Table of Contents Cash Flows for the Year Ended December 31, 2021 In 2021, we used the $5.9 billion of cash generated by our operations and the $1.8 billion in debt issuances and borrowings to make $2.2 billion of investments in our business, repay $3.2 billion of debt and finance lease obligations (including premiums paid on the early redemption and retirement of debt), return $1.6 billion to our stockholders through purchases of our common stock for treasury and dividend payments, and increase our available cash on hand by $809 million.
Cash Flows for the Year Ended December 31, 2022 In 2022, we used the $12.6 billion of cash generated by our operations and the $3.2 billion from the debt issuance and borrowings to make $2.8 billion of investments in our business, repay $6.0 billion of debt and finance lease obligations (including premiums paid on the early retirement of debt), return $6.1 billion to our stockholders through purchases of our common stock for treasury and dividend payments, and increase our available cash on hand by $740 million.
Renewable Diesel segment adjusted operating income increased by $62 million primarily due to higher sales volumes and higher renewable diesel prices, partially offset by higher feedstock costs, an unfavorable impact from commodity derivative instruments associated with our price risk management activities, higher operating expenses (excluding depreciation and amortization expense), and higher depreciation and amortization expense. • Ethanol segment.
Renewable Diesel segment operating income increased by $78 million primarily due to lower feedstock costs and higher sales volumes, partially offset by lower product prices (primarily renewable diesel), higher operating expenses (excluding depreciation and amortization expense), and higher depreciation and amortization expense. • Ethanol segment.
Year Ended December 31, 2022 2021 Change Operating income $ 774 $ 709 $ 65 Adjusted operating income (see note (h)) 774 712 62 Renewable Diesel margin (see note (h)) $ 1,151 $ 904 $ 247 Operating expenses (excluding depreciation and amortization expense reflected below) 255 134 121 Depreciation and amortization expense 122 58 64 Sales volumes (thousand gallons per day) (see note (i)) 2,175 1,014 1,161 Renewable Diesel segment operating income increased by $65 million in 2022 compared to 2021; however, Renewable Diesel segment adjusted operating income, which excludes the adjustment in the table in note (h), increased by $62 million in 2022 compared to 2021.
Year Ended December 31, 2023 2022 Change Operating income $ 852 $ 774 $ 78 Renewable Diesel margin (see note (h)) 1,441 1,151 290 Operating expenses (excluding depreciation and amortization expense reflected below) 358 255 103 Depreciation and amortization expense 231 122 109 Sales volumes (thousand gallons per day) (see note (i)) 3,539 2,175 1,364 Renewable Diesel segment operating income increased by $78 million in 2023 compared to 2022.
Year Ended December 31, 2022 2021 Change Operating income $ 15,803 $ 1,862 $ 13,941 Adjusted operating income (see note (h)) 15,762 1,944 13,818 Refining margin (see note (h)) $ 23,518 $ 9,201 $ 14,317 Operating expenses (excluding depreciation and amortization expense reflected below) (see note (b)) 5,509 5,088 421 Depreciation and amortization expense 2,247 2,169 78 Throughput volumes (thousand BPD) (see note (i)) 2,953 2,787 166 Refining segment operating income increased by $13.9 billion in 2022 compared to 2021; however, Refining segment adjusted operating income, which excludes the adjustments in the table in note (h), increased by $13.8 billion in 2022 compared to 2021.
Year Ended December 31, 2023 2022 Change Operating income $ 11,511 $ 15,803 $ (4,292) Adjusted operating income (see note (h)) 11,528 15,762 (4,234) Refining margin (see note (h)) 19,087 23,518 (4,431) Operating expenses (excluding depreciation and amortization expense reflected below) 5,208 5,509 (301) Depreciation and amortization expense 2,351 2,247 104 Throughput volumes (thousand BPD) (see note (i)) 2,979 2,953 26 Refining segment operating income decreased by $4.3 billion in 2023 compared to 2022; however, Refining segment adjusted operating income, which excludes the adjustments in the table in note (h), decreased by $4.2 billion in 2023 compared to 2022.
The components of this $13.4 billion increase in adjusted operating income are discussed by segment in the segment analyses that follow. 46 Table of Contents “Other income, net” increased by $163 million in 2022 compared to 2021 due to the items noted in the following table (see note (f) for explanations of these components): Year Ended December 31, 2022 2021 Change Net benefit (charge) from early redemption and retirement of debt $ 14 $ (193) $ 207 Pension settlement charge (58) — (58) Asset impairment loss associated with the cancellation of a pipeline extension project by Diamond Pipeline LLC (a nonconsolidated joint venture) — (24) 24 Gain on sale of a 24.99 percent membership interest in MVP Terminalling, LLC (MVP) (a nonconsolidated joint venture) — 62 (62) Interest income, equity income on joint ventures, and other 223 171 52 Other income, net $ 179 $ 16 $ 163 Income tax expense increased by $3.2 billion in 2022 compared to 2021 primarily as a result of an increase in income before income tax expense.
The components of this $3.8 billion decrease in adjusted operating income are discussed by segment in the segment analyses that follow. 49 Table of Contents “Other income, net” increased by $323 million in 2023 compared to 2022 due to the items noted in the following table (in millions): Year Ended December 31, 2023 2022 Change Interest income on cash $ 293 $ 105 $ 188 Net gain from early retirement of debt (see note (e)) 11 14 (3) Pension settlement charge (see note (e)) — (58) 58 Equity income on joint ventures and other 198 118 80 Other income, net $ 502 $ 179 $ 323 Income tax expense decreased by $809 million in 2023 compared to 2022 primarily as a result of a decrease in income before income tax expense.
Year Ended December 31, 2022 2021 Change Revenues $ 176,383 $ 113,977 $ 62,406 Cost of sales (see notes (a) through (c)) 159,587 110,848 48,739 General and administrative expenses (excluding depreciation and amortization expense) (see note (e)) 934 865 69 Operating income 15,690 2,130 13,560 Adjusted operating income (see note (h)) 15,710 2,264 13,446 Other income, net (see note (f)) 179 16 163 Income tax expense (see note (g)) 3,428 255 3,173 Revenues increased by $62.4 billion in 2022 compared to 2021 primarily due to increases in product prices for the petroleum-based transportation fuels associated with sales made by our Refining segment.
Year Ended December 31, 2023 2022 Change Revenues $ 144,766 $ 176,383 $ (31,617) Cost of sales (see notes (a) and (b)) 131,834 159,587 (27,753) Operating income 11,858 15,690 (3,832) Adjusted operating income (see note (h)) 11,891 15,710 (3,819) Other income, net (see note (e)) 502 179 323 Income tax expense (see note (f)) 2,619 3,428 (809) Revenues decreased by $31.6 billion in 2023 compared to 2022 primarily due to decreases in product prices for the petroleum-based transportation fuels associated with sales made by our Refining segment.
As of December 31, 2022, we recognized a deferred income tax liability of $51 million for foreign tax withholding on the anticipated repatriation of approximately $1 billion of cash held by one of our foreign subsidiaries. 61 Table of Contents Environmental Matters Our operations are subject to extensive environmental regulations by government authorities relating to the discharge of materials into the environment, waste management, pollution prevention measures, GHG emissions, and characteristics and composition of many of our products.
Environmental Matters Our operations are subject to extensive environmental regulations by government authorities relating to, among other matters, the discharge of materials into the environment, climate, waste management, pollution prevention measures, GHG and other emissions, our facilities and operations, and characteristics and composition of many of our products.