Domestic Inventory and Well Costs

CAUTIONARY STATEMENTS Forward-looking statements 2 This presentation contains "forward-looking statements" within the meaning of the "safe harbor" provisions of the Private Securities Litigation Reform Act of 1995, including but not limited to statements about Occidental Petroleum Corporation's ("Occidental" or "Oxy") expectations, beliefs, plans or forecasts. Forward-looking statements involve estimates, expectations, projections, goals, forecasts, assumptions, risks and uncertainties, many of which involve factors or circumstances that are beyond Occidental's control. Although Occidental believes that the expectations reflected in any of its forward-looking statements are reasonable, actual results may differ from anticipated results, sometimes materially. In addition, historical, current and forward-looking sustainability-related statements may be based on standards for measuring progress that are still developing, internal controls and processes that continue to evolve and assumptions that are subject to change in the future. Factors that could cause results to differ from those projected or assumed in any forward-looking statement include, but are not limited to: general economic conditions, including slowdowns and recessions, domestically or internationally; Occidental's indebtedness and other payment obligations, including the need to generate sufficient cash flows to fund operations; Occidental's ability to successfully monetize select assets and repay or refinance debt and the impact of changes in Occidental's credit ratings; the scope and duration of the COVID-19 pandemic and ongoing actions taken by governmental authorities and other third parties in response to the pandemic; assumptions about energy markets; global and local commodity and commodity-futures pricing fluctuations and volatility; supply and demand considerations for, and the prices of, Occidental's products and services; actions by the Organization of the Petroleum Exporting Countries (OPEC) and non-OPEC oil producing countries; results from operations and competitive conditions; future impairments of Occidental's proved and unproved oil and gas properties or equity investments, or write-downs of productive assets, causing charges to earnings; unexpected changes in costs; inflation, its impact on markets and economic activity and related monetary policy actions by governments in response to inflation; availability of capital resources, levels of capital expenditures and contractual obligations; the regulatory approval environment, including Occidental's ability to timely obtain or maintain permits or other governmental approvals, including those necessary for drilling and/or development projects; Occidental's ability to successfully complete, or any material delay of, field developments, expansion projects, efficiency projects, acquisitions or dispositions; risks associated with acquisitions, mergers and joint ventures, such as difficulties integrating businesses, uncertainty associated with financial projections, projected synergies, restructuring, increased costs and adverse tax consequences; uncertainties and liabilities associated with acquired and divested properties and businesses; uncertainties about the estimated quantities of oil, natural gas liquids and natural gas reserves; lower-than-expected production from development projects or acquisitions; Occidental's ability to realize the anticipated benefits from prior or future streamlining actions to reduce fixed costs, simplify or improve processes and improve Occidental's competitiveness; exploration, drilling and other operational risks; disruptions to, capacity constraints in, or other limitations on the pipeline systems that deliver Occidental's oil and natural gas and other processing and transportation considerations; volatility in the securities, capital or credit markets; governmental actions, war (including the Russia-Ukraine war) and political conditions and events; legislative or regulatory changes, including changes relating to hydraulic fracturing or other oil and natural gas operations, retroactive royalty or production tax regimes, deep-water and onshore drilling and permitting regulations and environmental regulations (including regulations related to climate change); environmental risks and liability under federal, regional, state, provincial, tribal, local and international environmental laws and regulations (including remedial actions); Occidental's ability to recognize intended benefits from its business strategies and initiatives, such as Occidental's low carbon ventures businesses or announced greenhouse gas emissions reduction targets or net-zero goals; potential liability resulting from pending or future litigation; disruption or interruption of production or manufacturing or facility damage due to accidents, chemical releases, labor unrest, weather, power outages, natural disasters, cyber-attacks, terrorist attacks or insurgent activity; the creditworthiness and performance of Occidental's counterparties, including financial institutions, operating partners and other parties; failure of risk management; Occidental's ability to retain and hire key personnel; supply, transportation, and labor constraints; reorganization or restructuring of Occidental's operations; changes in state, federal or international tax rates; and actions by third parties that are beyond Occidental's control. Words such as "estimate,” “project,” “predict," "will," "would," "should," "could," "may," "might," "anticipate," "plan," "intend," "believe," "expect," "aim," "goal," "target," "objective," "commit," "advance," "likely" or similar expressions that convey the prospective nature of events or outcomes generally indicate forward-looking statements. You should not place undue reliance on these forward- looking statements, which speak only as of the date of this presentation. Unless legally required, Occidental does not undertake any obligation to update, modify or withdraw any forward-looking statement, as a result of new information, future events or otherwise. Other factors that could cause actual results to differ from those described in any forward-looking statement appear in Part I, Item 1A "Risk Factors" of Occidental's Annual Report on Form 10-K for the year ended December 31, 2021 ("2021 Form 10-K") and in Occidental's other filings with the U.S. Securities and Exchange Commission (the "SEC"). Use of Non-GAAP Financial Information This presentation includes non-GAAP financial measures. Where available, reconciliations to comparable GAAP financial measures can be found on the Investor Relations section of Occidental's website at www.oxy.com. Cautionary Note to U.S. Investors The SEC permits oil and gas companies, in their filings with the SEC, to disclose only proved, probable and possible reserves. Any reserve estimates provided in this presentation that are not specifically designated as being estimates of proved reserves may include "potential" reserves and/or other estimated reserves not necessarily calculated in accordance with, or contemplated by, the SEC's latest reserve reporting guidelines. U.S. investors are urged to consider closely the oil and gas disclosures in our 2021 Form 10-K and other reports and filings with the SEC. Copies are available from the SEC and through our website, www.oxy.com. OXY