Item 1. Financial Statements (unaudited)

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Item 1. Financial Statements (unaudited)

Consolidated Condensed Balance SheetsOccidental Petroleum Corporation and Subsidiaries
millionsMarch 31, 2026December 31, 2025
ASSETS
Cash and cash equivalents$3,811$1,968
Trade receivables, net of reserves3,6772,575
Joint interest receivables791684
Inventories1,8621,823
Other current assets933601
Current assets held for sale—1,176
Total current assets11,0748,827
Property, plant and equipment, gross138,123137,753
Accumulated depreciation, depletion and amortization(75,007)(74,110)
Total property, plant and equipment, net63,11663,643
Operating lease assets890908
Investments in unconsolidated entities2,3412,475
Non-current assets held for sale—5,344
Other long-term assets3,0432,989
Total non-current assets6,27411,716
TOTAL ASSETS$80,464$84,186
LIABILITIES
Current maturities of long-term debt$424$1,773
Accounts payable3,7763,285
Accrued liabilities4,9533,592
Liabilities held for sale—778
Total current liabilities9,1539,428
Long-term debt, net15,24720,623
Deferred income taxes, net5,0335,636
Asset retirement obligations4,1284,172
Non-current liabilities held for sale—418
Other liabilities7,3437,311
Total deferred credits and other liabilities16,50417,537
EQUITY
Preferred stock, at $1.00 per share par value, issued shares: 2026 — 84,897 and 2025 —84,8978,2878,287
Common stock, at $0.20 per share par value, authorized shares: 1.5 billion, issued shares: 2026 — 1,220,886,511 and 2025 — 1,214,337,600244243
Treasury stock: 2026 — 229,693,951 shares and 2025 — 228,311,184 shares(15,676)(15,597)
Additional paid-in capital21,07721,008
Retained earnings24,80621,891
Accumulated other comprehensive income194202
Total stockholders' equity38,93236,034
Noncontrolling interest628564
Total equity39,56036,598
TOTAL LIABILITIES AND EQUITY$80,464$84,186

The accompanying notes are an integral part of these Consolidated Condensed Financial Statements.

Consolidated Condensed Statements of OperationsOccidental Petroleum Corporation and Subsidiaries
Three months ended March 31,
millions, except per-share amounts20262025
REVENUES AND OTHER INCOME
Net sales$5,230$5,704
Interest, dividends and other income8153
Losses on sales of assets and other, net(202)(19)
Total5,1095,738
COSTS AND OTHER DEDUCTIONS
Oil and gas lease operating expense1,1181,217
Transportation and gathering expense421452
General and administrative expense245241
Other operating and non-operating expense356326
Taxes other than on income259264
Depreciation, depletion and amortization1,7941,804
Asset impairments and other charges120—
Acquisition-related costs—6
Exploration expense11055
Interest and debt expense, net432310
Total4,8554,675
Income before income taxes and other items2541,063
OTHER ITEMS
Income from equity investments and other136114
Total136114
Income from continuing operations before income taxes3901,177
Income tax expense(154)(347)
Income from continuing operations236830
Discontinued operations, net of taxes3,123115
NET INCOME3,359945
Less: Net income attributable to noncontrolling interest(14)(9)
Less: Preferred stock dividends(170)(170)
NET INCOME ATTRIBUTABLE TO COMMON STOCKHOLDERS$3,175$766
PER COMMON SHARE
Income from continuing operations—basic$0.05$0.69
Discontinued operations—basic3.140.12
Net income attributable to common stockholders—basic$3.19$0.81
Income from continuing operations—diluted$0.05$0.65
Discontinued operations—diluted3.080.12
Net income attributable to common stockholders—diluted$3.13$0.77
The accompanying notes are an integral part of these Consolidated Condensed Financial Statements.
Consolidated Condensed Statements of Comprehensive IncomeOccidental Petroleum Corporation and Subsidiaries
Three months ended March 31,
millions20262025
Net income$3,359$945
Other comprehensive income (loss) items:
Gains (losses) on derivatives3(3)
Pension and postretirement losses(16)(3)
Other5(3)
Other comprehensive income (loss), net of tax(8)(9)
Comprehensive income3,351936
Less: Comprehensive income attributable to noncontrolling interest(14)(9)
Comprehensive income attributable to preferred and common stockholders$3,337$927

The accompanying notes are an integral part of these Consolidated Condensed Financial Statements.

Consolidated Condensed Statements of EquityOccidental Petroleum Corporation and Subsidiaries
Equity Attributable to Common Stock
millions, except per-share amountsPreferred StockCommon StockTreasury StockAdditional Paid-in CapitalRetained EarningsAccumulated Other Comprehensive Income (Loss)Noncontrolling InterestTotal Equity
Balance as of December 31, 2024$8,287$233$(15,597)$19,868$21,189$179$321$34,480
Net income————936—9945
Other comprehensive loss, net of tax—————(9)—(9)
Dividends on common stock, $0.24 per share————(229)——(229)
Dividends on preferred stock, $2,000 per share————(170)——(170)
Shareholder warrants exercised———3———3
Issuance of common stock and other, net of cancellations—1—21———22
Noncontrolling interest contributions, net——————6363
Balance as of March 31, 2025$8,287$234$(15,597)$19,892$21,726$170$393$35,105
Equity Attributable to Common Stock
millions, except per-share amountsPreferred StockCommon StockTreasury StockAdditional Paid-in CapitalRetained EarningsAccumulated Other Comprehensive Income (Loss)Noncontrolling InterestTotal Equity
Balance as of December 31, 2025$8,287$243$(15,597)$21,008$21,891$202$564$36,598
Net income————3,345—143,359
Other comprehensive loss, net of tax—————(8)—(8)
Dividends on common stock, $0.26 per share————(260)——(260)
Dividends on preferred stock, $2,000 per share————(170)——(170)
Shareholder warrants exercised—1—78———79
Options exercised———6———6
Issuance of common stock and other, net of cancellations———(15)———(15)
Purchase of treasury stock——(79)————(79)
Noncontrolling interest contributions, net——————5050
Balance as of March 31, 2026$8,287$244$(15,676)$21,077$24,806$194$628$39,560

The accompanying notes are an integral part of these Consolidated Condensed Financial Statements.

Consolidated Condensed Statements of Cash FlowsOccidental Petroleum Corporation and Subsidiaries
Three months ended March 31,
millions20262025
CASH FLOW FROM OPERATING ACTIVITIES
Net income$3,359$945
Adjustments to reconcile net income to net cash provided by operating activities:
Discontinued operations, net(3,123)(115)
Depreciation, depletion and amortization of assets1,7941,804
Deferred income tax provision (benefit)50(125)
Asset impairments and other charges105—
Losses on sales of assets and other, net20219
Other noncash charges to income864243
Changes in operating assets and liabilities:
Increase in trade receivables(1,101)(19)
Increase in inventories(26)—
Increase in other current assets(285)(3)
Decrease in accounts payable and accrued liabilities(482)(766)
Increase in current domestic and foreign income taxes3549
Operating cash flow from continuing operations1,3922,032
Operating cash flow from discontinued operations, net of taxes(111)116
Net cash provided by operating activities1,2812,148
CASH FLOW FROM INVESTING ACTIVITIES
Capital expenditures(1,554)(1,682)
Change in capital accrual(25)50
Purchases of assets, businesses and equity investments, net(25)(52)
Proceeds from sales of assets, net571,306
Equity investments and other, net(66)(75)
Investing cash flow from continuing operations(1,613)(453)
Investing cash flow from discontinued operations9,461(278)
Net cash provided (used) by investing activities7,848(731)
CASH FLOW FROM FINANCING ACTIVITIES
Payments of debt(6,903)(518)
Proceeds from issuance of common stock9525
Purchases of treasury stock(56)—
Cash dividends paid on common and preferred stock(409)(380)
Contributions from noncontrolling interest5063
Other financing, net(105)(118)
Financing cash flow from continuing operations(7,328)(928)
Financing cash flow from discontinued operations—(4)
Net cash used by financing activities(7,328)(932)
Increase in cash, cash equivalents, restricted cash and restricted cash equivalents1,801485
Cash, cash equivalents, restricted cash and restricted cash equivalents — beginning of period2,0462,157
Cash, cash equivalents, restricted cash and restricted cash equivalents — end of period$3,847$2,642
The accompanying notes are an integral part of these Consolidated Condensed Financial Statements.
Notes to Consolidated Condensed Financial StatementsOccidental Petroleum Corporation and Subsidiaries
NOTE 1 - GENERAL

NATURE OF OPERATIONS

The Company conducts its operations through various subsidiaries and affiliates. The Company has made its disclosures in accordance with United States generally accepted accounting principles as they apply to interim reporting and has condensed or omitted, as permitted by the rules and regulations of the SEC, certain information and disclosures normally included in Consolidated Financial Statements and the notes thereto. These unaudited Consolidated Condensed Financial Statements should be read in conjunction with the audited Consolidated Financial Statements and the notes thereto in the 2025 Form 10-K.

In the opinion of the Company's management, the accompanying unaudited Consolidated Condensed Financial Statements in this report reflect all adjustments (consisting of normal recurring adjustments) that are necessary to fairly present the Company's results of operations and cash flows for the three months ended March 31, 2026 and 2025 and the Company's financial position as of March 31, 2026 and December 31, 2025. The income and cash flows for the periods ended March 31, 2026 and 2025 are not necessarily indicative of the income or cash flows to be expected for the full year.

WES INVESTMENT

WES is a publicly traded limited partnership with its limited partner units traded on the NYSE under the ticker symbol "WES." As of March 31, 2026, the Company owned all of the 2.2% non-voting general partner interest, 38.2% of the WES limited partner units, and a 2% non-voting limited partner interest in WES Operating, a subsidiary of WES. In February 2026, in connection with the amendment of certain commercial agreements, the Company transferred 15.3 million units to WES, and recorded charges of $105 million. As of March 31, 2026, the Company's combined share of net income from WES and its subsidiaries was 40.8%.

DISCONTINUED OPERATIONS

The OxyChem Transaction closed on January 2, 2026 for an adjusted purchase price of $9.5 billion, subject to additional post-closing adjustments. In connection with the transaction, the Company retained environmental liabilities relating to legacy sites. Furthermore, there are post-closing indemnification obligations for (i) such legacy environmental liabilities and (ii) pre-closing liabilities of OxyChem, including pre-closing environmental liabilities, in each case subject to certain limitations and procedures, and Occidental entered into a guaranty in favor of Berkshire Hathaway to guarantee these indemnification obligations.

As a result of our agreement to sell OxyChem, the following changes in our basis of presentation have occurred:

■In accordance with ASC 205, Discontinued Operations, intersegment sales from our oil and gas and midstream and marketing segments to the chemical segment are no longer eliminated as intercompany transactions. All periods presented have been retrospectively adjusted to reflect this change.

■Beginning October 1, 2025, in accordance with ASC 360, Property, Plant, and Equipment (PP&E), depreciation and amortization were no longer recorded for the chemical segment's PP&E and right of use lease assets.

Unless otherwise indicated, information presented in the Notes to Consolidated Financial Statements relates only to the Company's continuing operations. Additional information related to discontinued operations is included in Note 4 - Acquisitions, Divestitures and Other Transactions and in some instances, where appropriate, is included as a separate disclosure within the individual Notes to Consolidated Financial Statements.

NON-CONTROLLING INTEREST

The Company and BlackRock formed a joint venture for the continued development of the first commercial-scale direct air capture facility. The joint venture is a VIE and the Company consolidates the VIE as it is the primary beneficiary. BlackRock's investment is accounted for as an NCI. As of March 31, 2026, BlackRock has invested the entirety of its total commitment of $550 million. In addition, the Company has entered into agreements with the joint venture related to project management, operations and maintenance and carbon removal offtake. The Company may incur additional payments if certain construction and operational thresholds are not met.

The Company may call the NCI on June 30, 2035 or earlier if the plant does not achieve commercial operations or ceases and permanently discontinues operations. Dividends from the joint venture will be distributed preferentially to the

NCI up to a return threshold, then preferentially to the Company thereafter. The NCI receives preferential distributions in liquidation.

The Company has determined that the appropriate methodology for attributing income and loss from the joint venture is the HLBV method. As of March 31, 2026, the VIE's assets were comprised of $1.2 billion construction in progress. Noncontrolling interest as of March 31, 2026 was $628 million.

CASH EQUIVALENTS AND RESTRICTED CASH EQUIVALENTS

The Company considers all highly liquid investments with a maturity of three months or less when purchased to be cash equivalents or restricted cash equivalents. The cash equivalents and restricted cash equivalents balances for the periods presented include investments in government money market funds in which the carrying value approximates fair value.

The following table provides a reconciliation of cash, cash equivalents, restricted cash and restricted cash equivalents as reported in the Consolidated Condensed Statements of Cash Flows as of March 31, 2026 and 2025:

millions20262025
Cash and cash equivalents$3,811$2,604
Cash and cash equivalents included in assets held for sale—8
Restricted cash and restricted cash equivalents included in other current assets1815
Restricted cash and restricted cash equivalents included in other long-term assets1815
Cash, cash equivalents, restricted cash and restricted cash equivalents$3,847$2,642

RECEIVABLES AND OTHER CURRENT ASSETS

Trade receivables, net of $3.7 billion and $2.6 billion as of March 31, 2026 and December 31, 2025, respectively, represent rights to payment for which the Company had satisfied its obligations under a contract with a customer and its right to payment was conditioned only on the passage of time. The allowance for doubtful accounts was insignificant as of both dates.

SUPPLEMENTAL CASH FLOW INFORMATION

The following table represents U.S. federal, state and international income taxes paid, refunds received and interest paid during the three months ended March 31, 2026 and 2025, respectively:

millions20262025
Income tax payments$118$414
Income tax refunds received$—$(1)
Interest paid (a)$404$486

(a) Net of capitalized interest of $50 million and $42 million for the three months ended March 31, 2026 and 2025, respectively.

INVENTORIES

Materials and supplies are valued at weighted-average cost and are reviewed periodically for obsolescence. Commodity inventory primarily represents oil, which is carried at the lower of weighted-average cost or net realizable value.

Inventories consisted of the following as of March 31, 2026 and December 31, 2025:

millionsMarch 31, 2026December 31, 2025
Materials and supplies$1,249$1,222
Commodity inventory613601
Total$1,862$1,823

ACCRUED LIABILITIES - CURRENT

Accrued liabilities - current consisted of the following as of March 31, 2026 and December 31, 2025:

millionsMarch 31, 2026December 31, 2025
Income tax payable$1,643$159
Payroll and related expenses354620
Taxes other than on income413498
Accrued interest payable184386
Dividends payable405383
Asset retirement obligations343381
Operating lease liabilities383350
Other1,228815
Total$4,953$3,592

OTHER LONG-TERM LIABILITIES

Other long-term liabilities consisted of the following as of March 31, 2026 and December 31, 2025:

millionsMarch 31, 2026December 31, 2025
Long term tax liabilities$2,427$2,393
Environmental remediation liabilities1,7041,719
Pension and postretirement obligations933985
Operating lease liabilities557605
Other1,7221,609
Total$7,343$7,311
NOTE 2 - REVENUE

Revenue from customers is recognized when obligations under the terms of a contract with customers are satisfied; this generally occurs with the delivery of oil, NGL, gas or services, such as transportation.

The following table shows a reconciliation of revenue from customers to total net sales for the three months ended March 31, 2026 and 2025:

millions20262025
Revenue from customers$5,569$5,813
All other revenues (a)(339)(109)
Net sales$5,230$5,704

(a) Includes other net revenues from the midstream and marketing segment.

DISAGGREGATION OF REVENUE FROM CONTRACTS WITH CUSTOMERS

The table below presents the Company's revenue from customers by segment, product and geographical area. The oil and gas segment typically sells its oil, NGL and gas at the lease or concession area. Midstream and marketing segment revenues are shown by the location of sale:

millionsUnited StatesInternationalEliminationsTotal
Three Months Ended March 31, 2026
Oil and gas
Oil$3,873$650$—$4,523
NGL44474—518
Gas16483—247
Other242—26
Segment total$4,505$809$—$5,314
Midstream and marketing$121$276$—$397
Eliminations$—$—$(142)$(142)
Consolidated$4,626$1,085$(142)$5,569
millionsUnited StatesInternationalEliminationsTotal
Three Months Ended March 31, 2025
Oil and gas
Oil$3,830$675$—$4,505
NGL57896—674
Gas38184—465
Other381—39
Segment total$4,827$856$—$5,683
Midstream and marketing$144$138$282
Eliminations$—$—$(152)$(152)
Consolidated$4,971$994$(152)$5,813
NOTE 3 - LONG-TERM DEBT

As of March 31, 2026 and December 31, 2025, the Company's debt consisted of the following:

millions20262025
Two-year term loan due 2026 (5.475% as of December 31, 2025)—1,280
3.200% senior notes due 2026—182
7.500% debentures due 2026—112
8.500% senior notes due 2027—489
3.000% senior notes due 2027—216
7.125% debentures due 2027—150
7.000% debentures due 20274848
5.000% senior notes due 2027—600
6.625% debentures due 20281414
7.150% debentures due 2028—232
7.200% senior debentures due 2028—82
6.375% senior notes due 2028—578
7.200% debentures due 2029135135
7.950% debentures due 2029102116
8.450% senior notes due 2029116116
3.500% senior notes due 2029—286
5.200% senior notes due 2029—1,200
Variable rate bonds due 20306868
8.875% senior notes due 20301,0001,000
6.625% senior notes due 20301,0681,449
6.125% senior notes due 20312981,143
7.500% senior notes due 2031900900
7.875% senior notes due 2031500500
5.375% senior notes due 20321,0001,000
5.550% senior notes due 20341,2001,200
6.450% senior notes due 20361,7271,727
Zero Coupon senior notes due 2036263285
0.000% loan due 2039 (CAD denominated)1617
4.300% senior notes due 2039247247
7.950% senior notes due 2039325325
6.200% senior notes due 2040737737
4.500% senior notes due 2044191191
4.625% senior notes due 2045296296
6.600% senior notes due 20461,1171,117
4.400% senior notes due 2046424424
4.100% senior notes due 2047258258
4.200% senior notes due 2048304304
4.400% senior notes due 2049280280
6.050% senior notes due 20541,0001,000
7.730% debentures due 20965858
7.500% debentures due 20966060
7.250% debentures due 209655
Total borrowings at face value$13,757$20,427

As of March 31, 2026 and December 31, 2025, the following table summarizes the Company's outstanding debt, including finance lease liabilities:

millions20262025
Total borrowings at face value$13,757$20,427
Adjustments to book value:
Unamortized premium, net1,0121,054
Debt issuance costs(62)(84)
Net book value of debt$14,707$21,397
Long-term finance leases764801
Current finance leases200198
Total debt and finance leases$15,671$22,396
Less: current finance leases(200)(198)
Less: current maturities of long-term debt(224)(1,575)
Long-term debt, net$15,247$20,623

DEBT REDUCTION ACTIVITY

The Company utilized proceeds from the OxyChem Transaction to repay debt of $6.7 billion, which resulted in a loss on extinguishment of $237 million. The following table summarizes the Company's debt extinguishment in the three months ended March 31, 2026:

millionsBorrowings at face value
Total borrowings at face value as of December 31, 2025$20,427
Repayments
Two-year term loan due 2026(1,280)
3.200% senior notes due 2026(182)
7.500% debentures due 2026(112)
3.000% senior notes due 2027(216)
5.000% senior notes due 2027(600)
7.125% debentures due 2027(150)
8.500% senior notes due 2027(489)
6.375% senior notes due 2028(578)
7.150% debentures due 2028(232)
7.200% senior debentures due 2028(82)
3.500% senior notes due 2029(286)
5.200% senior notes due 2029(1,200)
7.950% debentures due 2029(14)
6.625% senior notes due 2030(381)
6.125% senior notes due 2031(845)
Zero Coupon senior notes due 2036(22)
0.000% loan due 2039 (CAD denominated)(1)
Total repayments$(6,670)
Total borrowings at face value as of March 31, 2026$13,757

Subsequent to March 31, 2026, but before the date of this filing, the Company repaid an additional $0.4 billion of long-term debt.

FAIR VALUE OF DEBT

The estimated fair value of the Company's principal debt as of March 31, 2026 and December 31, 2025, the majority of which was classified as Level 1, was $13.9 billion and $20.8 billion, respectively.

NOTE 4 - ACQUISITIONS, DIVESTITURES AND OTHER TRANSACTIONS

ACQUISITIONS AND DIVESTITURES

During the first quarter of 2026, the Company entered into an agreement to divest non-core proved and unproved royalty and mineral interests as well as certain processing plants in the Permian Basin. The Company recorded a $186 million loss primarily attributable to the processing plants. The transaction closed in the second quarter of 2026.

DISCONTINUED OPERATIONS

In October 2025, the Company announced a purchase and sale agreement with Berkshire Hathaway to sell all of the issued and outstanding equity interests in OxyChem in an all-cash transaction for an adjusted purchase price of $9.5 billion, subject to additional post-closing adjustments. The sale was completed on January 2, 2026, resulting in a gain of $3.1 billion, net of taxes. The OxyChem Transaction marks a strategic change in the Company's operations. For information related to the presentation of financials for discontinued operations, see Note 1 - General. Refer to Note 3 Long-Term Debt for the Company's use of the after-tax sale proceeds.

The following table summarizes the components of the purchase price:

in millionsTotal
Cash purchase price$9,700
Closing Adjustments
Working capital adjustment(158)
Post-close adjustments(40)
Total Cash Purchase Price$9,502

The following table presents the amounts reported in discontinued operations, net of income taxes, for the three months ended March 31:

millions20262025
Revenues and other income
Net Sales$26$1,099
Interest, dividends and other income—6
Gains on sales of assets and others, net4,072—
Total revenues and other income4,0981,105
Costs and other deductions
Chemical cost of sales23762
General and administrative expense426
Other operating and non-operating expense2866
Depreciation, depletion and amortization—113
Acquisition-related costs——
Other expense, net—8
Total costs and other deductions55975
Income before income taxes and other items4,043130
Income from equity investments and other125
Income before income taxes4,044155
Income tax expense(921)(40)
Income from discontinued operations, net of tax$3,123$115
NOTE 5 - DERIVATIVES

OBJECTIVE AND STRATEGY

The Company uses a variety of derivative financial instruments and physical contracts to manage its exposure to commodity price fluctuations and transportation commitments and to fix margins on the future sale of stored commodity volumes. Derivatives are carried at fair value and on a net basis when a legal right of offset exists with the same counterparty. The Company may occasionally use a variety of derivative financial instruments to manage its exposure to foreign currency fluctuations and interest rate risks. The Company also enters into derivative financial instruments for trading purposes.

The Company may elect normal purchases and normal sales exclusions when physically delivered commodities are purchased from a vendor or sold to a customer.

CRUDE COLLARS

In February 2026, the Company entered into crude two-way collar derivative instruments beginning in March for the remainder of 2026 to manage its near-term exposure to cash flow variability from crude oil price risk. A two-way collar is a combination of a sold call and a purchased put. The sold call establishes a ceiling price and the purchased put establishes a floor price that the Company will receive for the contracted commodity volume for a defined period of time. Gains and losses associated with changes in the fair value of the collars are recognized in net sales. The collars have a notional volume of 100 Mbbl per day, a floor WTI price of $55.00 per barrel and a weighted average ceiling WTI price of $75.89 per barrel.

MARKETING DERIVATIVES

The Company's marketing derivative instruments are short-duration physical and financial forward contracts. As of March 31, 2026, the weighted-average settlement price of these forward contracts was $85.51 per barrel and $2.09 per Mcf for crude oil and natural gas, respectively. The weighted-average settlement price was $59.59 per barrel and $2.53 per Mcf for crude oil and natural gas, respectively, as of December 31, 2025. Derivative instruments that are not designated as hedging instruments are required to be recorded on the balance sheet at fair value. Changes in fair value will impact the Company's earnings through mark-to-market adjustments until the physical commodity is delivered or the financial instrument is settled. Net gains and losses associated with marketing derivative instruments are recognized currently in net sales.

The following table summarizes net short volumes associated with the outstanding marketing commodity derivatives as of:

long (short)March 31, 2026December 31, 2025
Oil commodity contracts
Volume (MMbbl)(54)(59)
Natural gas commodity contracts
Volume (Bcf)(294)(189)

FAIR VALUE OF DERIVATIVES

The following tables present the fair values of the Company's outstanding derivatives. Fair values are presented at gross amounts below, including when the derivatives are subject to netting arrangements, and are presented on a net basis in the Consolidated Condensed Balance Sheets:

millionsFair Value Measurements UsingNetting (a)Total Fair Value
Balance Sheet ClassificationsLevel 1Level 2Level 3
March 31, 2026
Marketing Derivatives
Other current assets$3,915$436$—$(4,167)$184
Accrued liabilities(4,225)(299)—4,167(357)
Crude Collars
Accrued liabilities(292)———(292)
December 31, 2025
Marketing Derivatives
Other current assets$345$51$—$(328)$68
Accrued liabilities(336)(24)—328(32)

(a)These amounts do not include collateral. The Company netted $310 million of collateral deposited with brokers against derivative liabilities as of March 31, 2026. As of December 31, 2025, the Company netted $29 million of collateral received from brokers against derivative assets and $23 million collateral deposited with brokers against derivative liabilities.

GAINS AND LOSSES ON DERIVATIVES

The following table presents gains and losses related to the Company's derivative instruments and the location on the Consolidated Condensed Statements of Operations.

millionsThree months ended March 31,
Income Statement Classification20262025
Marketing derivatives (included in net sales)$2$(107)
Crude collars (included in net sales)$(339)$—

CREDIT RISK

The majority of the Company's credit risk is related to the physical delivery of energy commodities to its counterparties and their potential inability to meet their settlement commitments. The Company manages credit risk by selecting counterparties that it believes to be financially strong, by entering into netting arrangements with counterparties and by requiring collateral or other credit risk mitigants, as appropriate. The Company actively evaluates the creditworthiness of its counterparties, assigns appropriate credit limits and monitors credit exposures against those assigned limits. The Company also enters into futures contracts through regulated exchanges with select clearinghouses and brokers, which are subject to minimal credit risk, if any.

NOTE 6 - INCOME TAXES

The following table summarizes components of income tax expense:

Three months ended March 31,
millions20262025
Income before income taxes$390$1,177
Current
Federal10(330)
State and Local2(13)
Foreign(116)(129)
Total current tax expense$(104)$(472)
Deferred
Federal(28)139
State and Local(3)4
Foreign(19)(18)
Total deferred tax benefit (expense)$(50)$125
Total income tax expense
Federal(18)(191)
State and Local(1)(9)
Foreign(135)(147)
Total income tax expense$(154)$(347)
Income from continuing operations$236$830
Worldwide effective tax rate39%29%

The worldwide effective tax rates for the periods presented in the table above were primarily driven by the Company's jurisdictional mix of income from continuing operations. U.S. income is taxed at a U.S. federal statutory rate of 21%, while international income is subject to tax at statutory rates as high as 55%. The reclassification of OxyChem, which primarily consists of domestic operations, to discontinued operations increased the Company's effective tax rate from continuing operations. The effective tax rate for discontinued operations was 23% and 26% for the three months ended March 31, 2026 and 2025, respectively.

NOTE 7 - ENVIRONMENTAL LIABILITIES AND EXPENDITURES

The Company and its subsidiaries and their respective operations are subject to stringent federal, regional, state, provincial, tribal, local and international laws and regulations related to improving or maintaining environmental quality. The laws that require or address environmental remediation, including CERCLA and similar federal, regional, state, provincial, tribal, local and international laws, may apply retroactively and regardless of fault, the legality of the original activities or the current ownership or control of sites. The Company or certain of its subsidiaries participate in or actively monitor a range of remedial activities and government or private proceedings under these laws with respect to alleged past practices at Third-Party, Currently Operated, and Closed or Non-Operated Sites, in addition to NPL Sites. Remedial activities may include one or more of the following: investigation involving sampling, modeling, risk assessment or monitoring; clean-up measures including removal, treatment or disposal; or operation and maintenance of remedial systems. The environmental proceedings seek funding or performance of remediation and, in some cases, compensation for alleged property damage, natural resource damages, punitive damages, civil penalties, injunctive relief and government oversight costs.

As discussed in Note 1 - General, certain Occidental subsidiaries remain responsible for environmental remediation at legacy sites and the indemnification of legacy environmental liabilities and pre-closing liabilities of OxyChem, which were not classified as held for sale. Expenses related to OxyChem and the retained liabilities and indemnification obligations associated with the chemical business are reported as discontinued operations for all periods presented, reflecting the OxyChem Transaction.

ENVIRONMENTAL REMEDIATION

As of March 31, 2026, the Company participated in or monitored remedial activities or proceedings at 151 sites. The following table presents the current and non-current environmental remediation liabilities of the Company separated by those related to ongoing operations and discontinued operations as of March 31, 2026 and December 31, 2025.

millionsas of March 31, 2026as of December 31, 2025
Ongoing OperationsDiscontinued OperationsTotalOngoing OperationsDiscontinued OperationsTotal
Current Portion:
Accrued liabilities$55$96$151$55$96$151
Non-Current Portion:
Deferred credit and other liabilities1371,5671,7041411,5781,719
Total current and non-current$192$1,663$1,855$196$1,674$1,870

The estimates of environmental remediation liabilities in the table above vary over time depending on factors such as acquisitions or divestitures, identification of additional sites, remedy selection and implementation and changes in applicable laws or regulations, among other factors. Environmental remediation expenses primarily relate to existing conditions from alleged past practices.

Environmental remediation sites for ongoing operations and discontinued operations are grouped into NPL Sites and the following three categories of non-NPL Sites — Third-Party Sites, Currently Operated Sites and Closed or Non-operated Sites — as of March 31, 2026.

March 31, 2026
millions, except number of sitesNumber of SitesRemediation Balance
NPL Sites29$1,372
Third-Party Sites68239
Currently Operated Sites423
Closed or Non-operated Sites50221
Total151$1,855

As of March 31, 2026, environmental remediation liabilities of Occidental subsidiaries exceeded $10 million each at 16 of the 151 sites described above, and 86 of the sites had liabilities less than $1 million each. Based on current estimates, the Company expects its subsidiaries to expend funds corresponding to approximately 30% of the year-end remediation balance over the next three to four years with the remainder over the subsequent 10 or more years.

The Company believes the range of reasonably possible additional losses of its subsidiaries beyond those amounts currently recorded for environmental remediation for the 151 environmental sites in the table above could be up to $1.9 billion. The status of the Company's involvement with the sites and related significant assumptions have not changed materially since December 31, 2025.

DIAMOND ALKALI SUPERFUND SITE

The EPA has organized the DASS into four OUs for evaluating, selecting and implementing remediation under CERCLA. Current activities in each OU are summarized below, many of which are performed by Glenn Springs Holdings, Inc.

OU1 – 80 and 120 Lister Avenue in Newark, New Jersey: An Occidental subsidiary currently performs maintenance and monitoring for the interim remedy of OU1 pursuant to a 1990 Consent Decree for which such subsidiary inherited legal responsibility. In January 2025, the EPA issued a ROD for the final remedy of OU1 that provides for optimized containment for which it estimated a cost of $16 million.

OU2 – The Lower 8.3 Miles of the Lower Passaic River: In March 2016, the EPA issued a ROD specifying remedial actions required for OU2. During the third quarter of 2016, the EPA and an Occidental subsidiary entered into an AOC to complete the design of the remedy selected in the ROD. In May 2024, the EPA approved the remedial design for OU2. In June 2024, the EPA notified the subsidiary that the work required by the AOC has been fully performed in accordance with its terms. The EPA has estimated the cost to remediate OU2 to be approximately $1.4 billion.

OU3 – Newark Bay Study Area, including Newark Bay and portions of the Hackensack River, Arthur Kill, and Kill van Kull: A remedial investigation and feasibility study of OU3 was launched pursuant to a 2004 AOC which was amended in 2010. An Occidental subsidiary is currently performing feasibility study activities in OU3.

OU4 – The 17-mile Lower Passaic River Study Area, comprising OU2 and the Upper 9 Miles of the Lower Passaic River: In September 2021, the EPA issued a ROD selecting an interim remedy for the portion of OU4 that excludes OU2 and is located upstream from the Lister Avenue Plant site for which an Occidental subsidiary inherited legal responsibility. In March 2023, the EPA issued a Unilateral Administrative Order in which it directed and ordered such subsidiary to design the EPA's selected interim remedy for OU4. The EPA has estimated the cost to remediate OU4 to be approximately $440 million.

Natural Resource Trustees – In addition to the activities described above, federal and state natural resource trustees are assessing natural resources in the Lower Passaic River and Greater Newark Bay to evaluate potential claims for natural resource damages.

Legal matters related to the DASS (Alden Leeds)

In December 2022, the EPA and the DOJ filed a proposed Consent Decree in the Alden Leeds litigation, seeking court approval to settle with 85 parties for a total of $150 million for cleanup costs associated with OU2 and OU4. In January 2024, the DOJ filed a proposed Amended Consent Decree that excluded three companies from the original settlement, among other changes, and subsequently filed a motion to approve the Amended Consent Decree. In December 2024, the U.S. District Court for the District of New Jersey (District Court) approved the Amended Consent Decree. In its order approving the Amended Consent Decree, the District Court accepted the EPA's revised determination that the Company was responsible for approximately 85% of the cleanup costs for OU2 and OU4. The Company filed an appeal against the District Court's ruling on the grounds that the decision was flawed for several reasons, including the failure to consider the impact of recent Supreme Court decisions that restrict EPA authority and limit judicial deference to EPA actions. The Notice of Appeal was filed in February 2025, and all briefs have been filed as of January 2026.

As a result of the District Court's approval of the Amended Consent Decree, the non-current environmental remediation liability related to OU2 and OU4 was increased by $925 million in the fourth quarter of 2024. This charge was included in asset impairments and other charges in the Company's Consolidated Statements of Operations and represented the additional share of the total estimated remediation costs which may be incurred because of the assignment by the District

Court of 85% of the responsibility for OU2 and OU4. These costs have not been discounted as the timing and amount of the payments are not fixed or reliably determinable. It is expected that the cash outlay for remediation costs will be expended over ten to twenty years, or more.

The Alden Leeds settlement does not address the liability of entities that were excluded from the settlement, including for OU2, OU3, OU4 or natural resource damages, or the liability of any settling party with respect to OU3 or natural resource damages.

While the remedies for OU2 and OU4 are expected to take ten to twenty years to complete, the EPA may seek to require the Company to perform a substantial majority or all of the remediation work and provide additional financial assurance. It is uncertain when or to what extent the EPA may take action to compel further remediation in OU2 or OU4, or the amount of financial assurance that could be required.

In June 2018, the Company filed a complaint under CERCLA in the District Court against numerous potentially responsible parties seeking contribution and cost recovery of amounts incurred or to be incurred to comply with the AOC and the OU2 ROD, or to perform other remediation activities related to the DASS (2018 Contribution Action). Because costs are being incurred to implement the OU4 Unilateral Administrative Order, a cost recovery action under CERCLA was brought in March 2023 in the District Court against multiple parties (2023 Cost Recovery Action). Both the 2018 Contribution Action and the 2023 Cost Recovery Action were stayed pending the outcome of the Alden Leeds litigation. The Company does not know when the Court will lift the stay in those matters. If not reversed on appeal, the approved Amended Consent Decree could bar the Company from pursuing contribution against the settling parties for remediation costs incurred or that may be incurred in the future to design and implement the remedies in OU2 and OU4, including claims asserted in the 2018 Contribution Action.

Other information

For the DASS, a reserve has been accrued relating to the estimated allocable share of the costs to perform the maintenance and monitoring required in the OU1 Consent Decree, as well as the remedial investigation and feasibility study required in OU3 (Newark Bay). Subject to and without waiver of any rights, including appeal, a reserve has also been accrued for design and implementation of remedies selected in the OU2 ROD and AOC, and the OU4 ROD and OU4 Unilateral Administrative Order, based on the December 2024 Order of the District Court approving the Amended Consent Decree described above, which Order is currently being appealed.

The accrued environmental remediation reserve does not account for the possibility of additional remediation costs or natural resource damages for the DASS that are not considered reasonably estimable. The ultimate liability at the DASS may be greater or less than both the reserved amount and any reasonably possible additional losses, and will depend on final design plans, future actions by the EPA and natural resource trustees, as well as the resolution of the allocable share with other potentially responsible parties, among other factors.

The estimated costs currently recorded for remediation at the DASS and the range of reasonably possible additional losses beyond the amounts currently recognized are evaluated periodically. Due to the complexity and scope of the remediation efforts, the estimated costs may fluctuate over time as new information becomes available.

NOTE 8 - LAWSUITS, CLAIMS, COMMITMENTS AND CONTINGENCIES

LEGAL MATTERS

The Company is involved, in the normal course of business, in lawsuits, claims and other legal proceedings that seek, among other things, compensation for alleged personal injury, breach of contract, property damage or other losses, punitive damages, civil penalties, or injunctive or declaratory relief. The Company also is involved in proceedings under CERCLA and similar federal, regional, state, provincial, tribal, local and international environmental laws. These environmental proceedings seek funding or performance of remediation and, in some cases, compensation for alleged property damage, natural resource damages, punitive damages, civil penalties, injunctive relief and government oversight costs. Usually the Company is among many companies in these environmental proceedings and has to date been successful in sharing remediation costs with other financially sound companies. Further, some lawsuits, claims and legal proceedings involve acquired or divested assets with respect to which a third party or the Company retains liability or indemnifies the other party for conditions that existed prior to the transaction.

In accordance with applicable accounting guidance, the Company accrues contingency reserves for outstanding lawsuits, claims and proceedings when it is probable that a liability has been incurred and the liability can be reasonably estimated. Contingency reserves for matters, other than for tax matters discussed below and environmental matters discussed in Note 7 – Environmental Liabilities and Expenditures, that satisfy these criteria as of March 31, 2026 were not material to the Company's Consolidated Condensed Balance Sheets.

If unfavorable outcomes of these matters were to occur, future results of operations or cash flows for any particular quarterly or annual period could be materially adversely affected. The Company's estimates are based on information known

about the legal matters and its experience in contesting, litigating and settling similar matters. The Company will reassess the probability and estimability of contingent losses as new information becomes available.

TAX MATTERS AND DISPUTES

During the course of its operations, the Company is subject to audit by tax authorities for varying periods in various federal, state, local and international tax jurisdictions. Tax years through 2021 for U.S. federal income tax purposes have been audited by the IRS pursuant to its Compliance Assurance Program and subsequent taxable years are currently under review. Tax years through 2018 have been audited for state income tax purposes. There are no outstanding significant audit matters in international jurisdictions. During the course of tax audits, disputes have arisen and other disputes may arise as to facts and matters of law.

The IRS is currently reviewing the legal entity reorganization transaction as part of the Company’s 2022 federal tax audit. Following the acquisition of Anadarko and related divestitures, the Company reorganized its legal entities to better align with the nature of its business activities. This reorganization resulted in the Company making an adjustment to the tax basis in a portion of its operating assets, reducing deferred tax liabilities and recording a $2.7 billion tax benefit in 2022.

For Anadarko, its taxable years through 2014 and tax year 2016 for U.S. federal tax purposes have been audited and closed by the IRS. Tax years 2015 and 2017 through 2019 have been audited by the IRS but remain open pending the outcome of the Tronox U.S. Tax Court litigation discussed below. Tax years through 2018 have been audited for state income tax purposes. There are no outstanding significant audit matters in international jurisdictions. As stated above, during the course of tax audits, disputes have arisen and other disputes may arise as to facts and matters of law.

Other than the dispute discussed below, the Company believes that the resolution of these outstanding tax disputes would not have a material adverse effect on its consolidated financial position or results of operations.

Anadarko received an $881 million tentative refund in 2016 related to its $5.2 billion Tronox Adversary Proceeding settlement payment in 2015. In September 2018, Anadarko received a statutory notice of deficiency from the IRS disallowing the net operating loss carryback and rejecting Anadarko's refund claim. Anadarko disagreed and, in November 2018, filed a petition with the U.S. Tax Court to dispute the disallowance. Trial was held in May 2023. The parties filed post-trial briefs throughout 2023 and 2024. Closing arguments were held in May 2024. The Tax Court may issue an opinion at any time. If the Tax Court opines that all or a portion of the original $5.2 billion deduction is not deductible, a computation phase will commence where the parties will compute the tax amount to be included in the Tax Court's decision. Once the parties submit their computation, the Tax Court will formally enter the decision reflecting the computed tax amount. To pursue an appeal of the Tax Court's decision, any tax due as a result of the Tax Court's decision must be fully bonded or paid within 90 days of the decision's entry. If Anadarko does not pursue an appeal, the IRS will assess any resulting tax deficiency, including interest, and issue a notice demanding payment thereof.

In accordance with ASC 740's guidance on the accounting for uncertain tax positions, the Company has recorded no tax benefit on the tentative cash tax refund of $881 million. Additionally, the Company has recorded no tax benefit on approximately $500 million of additional cash tax benefits realized from the utilization of tax attributes generated as a result of the deduction of the $5.2 billion Tronox Adversary Proceeding settlement payment in 2015. If the payment is ultimately determined not to be deductible, the Company would be required to repay the tentative refund received, plus other cash benefits received related to the $5.2 billion deduction, plus interest, which as of March 31, 2026 totaled approximately $2.3 billion. As a result, should the Company not ultimately prevail on the issue, there would be no additional tax expense recorded relative to this position for financial statement purposes other than future interest. However, in that event, as of March 31, 2026, the Company would be required to repay approximately $1.4 billion in federal and state taxes and accrued interest of $997 million. A liability for the taxes and interest is included in other liabilities.

INDEMNITIES TO THIRD PARTIES

The Company has indemnified various parties against specified liabilities those parties might incur in the future in connection with purchases and other transactions that they have entered into with the Company. These indemnities usually are contingent upon the other party incurring liabilities that reach specified thresholds. The Company reserves for indemnity claims when a payment for such claims is probable and estimable. As discussed in Note 1 - General, Berkshire Hathaway has post-closing indemnification rights in connection with the OxyChem Transaction.

NOTE 9 - EARNINGS PER SHARE AND EQUITY

The following table presents the calculation of basic and diluted EPS attributable to common stockholders:

Three months ended March 31,
millions except per-share amounts20262025
Income from continuing operations$236$830
Discontinued operations, net of taxes3,123115
Net income$3,359$945
Less: Income attributable to noncontrolling interest(14)(9)
Less: Preferred stock dividends(170)(170)
Net income attributable to common stock$3,175$766
Less: Net income allocated to participating securities(20)(5)
Net income, net of participating securities$3,155$761
Weighted-average number of basic shares989.8941.3
Basic income per common share$3.19$0.81
Net income attributable to common stock$3,175$766
Less: Net income allocated to participating securities(19)(5)
Net income, net of participating securities$3,156$761
Weighted-average number of basic shares989.8941.3
Dilutive securities17.141.6
Dilutive effect of potentially dilutive securities1,006.9982.9
Diluted income per common share$3.13$0.77
Anti-dilutive securities excluded from diluted shares (millions)83.983.9

The following table presents Occidental's common share activity, including exercises of warrants, and other transactions in Occidental's common stock in 2026:

PeriodExercise of Warrants (a)Other (b)Treasury Stock Purchases (c)Common Stock Outstanding
December 31, 2025986,026,416
First Quarter 20263,609,2432,939,668(1,382,767)991,192,560
Total3,609,2432,939,668(1,382,767)991,192,560

(a) $79 million of cash was received in the first three months of 2026 from the exercise of common stock warrants.

(b) Includes issuances under the 2015 long-term incentive plan and the OPC savings plan.

(c) Includes purchases from the trustee of Occidental's defined contribution savings plan that are not part of publicly announced plans or programs.

As of March 31, 2026, Occidental had 26.8 million Common Stock Warrants with a strike of $22.00 per share and 83.9 million Berkshire Warrants held by Berkshire Hathaway with a strike of $59.59 per share.

On March 3, 2025, Occidental announced an offer to exercise its Common Stock Warrants, each exercisable at $22.00, at a temporarily reduced price of $21.30 per share with an expiration date of March 31, 2025. In April 2025, Occidental issued 41.9 million shares of stock in return for proceeds of approximately $890 million. The incremental fair value of the Common Stock Warrants related to the change in exercise price was recognized as an equity issuance cost. The proceeds from the warrant exercise were used to repay near-term debt maturities (See Note 3 - Long-Term Debt).

NOTE 10 - SEGMENTS

The Company conducts its operations through two segments: oil and gas and midstream and marketing. Income taxes, interest income, interest expense, environmental remediation expenses and unallocated corporate expenses are included under corporate and eliminations. Intersegment sales eliminate upon consolidation and are made at prices that approximate market. Identifiable assets are those assets used in the operations of the segments. Corporate assets consist of cash and restricted cash, certain corporate receivables and PP&E.

As a result of the OxyChem Transaction, the chemical segment results are presented separately as discontinued operations and corporate costs directly attributable to the chemical segment are included under discontinued operations. See Note 1 - General for related disclosure.

Occidental's President and CEO is ultimately responsible for allocating resources and assessing the performance of each operating segment and is the Chief Operating Decision Maker. The CEO may be assisted in this function by other members of Occidental's executive management including, but not limited to, the Chief Financial Officer and Chief Operating Officer. While other executives are responsible for the performance of their individual areas, the CEO is solely responsible for allocating resources across the Company as a whole.

For both reporting segments, segment income (loss) from continuing operations before income taxes is used to measure performance, as well as allocate resources (including financial or capital resources) for each segment, predominantly in the annual budget and forecasting process.

The following table reconciles segment income from continuing operations before taxes to net income attributable to common shares:

Three months ended March 31,
millions20262025
Segment income (losses) from continuing operations before taxes
Oil and gas segment$1,017$1,697
Midstream and marketing segment(87)(72)
Corporate and eliminations(108)(138)
Interest and debt expense, net(432)(310)
Income from continuing operations before income taxes$390$1,177
Income tax expense(154)(347)
Income from continuing operations$236$830
Discontinued operations, net of tax3,123115
Net income$3,359$945
Less: Net income attributable to noncontrolling interest(14)(9)
Less: Preferred stock dividends(170)(170)
Net income attributable to common stockholders$3,175$766

The following tables include a summary of significant revenue and expense line items for each segment. Items within "Significant segment expenses" align with the significant segment-level information that is regularly provided to the Chief Operating Decision Maker.

OIL AND GAS SEGMENT

Three months ended March 31,
millions20262025
Revenues and other income
Net sales (a)$4,975$5,683
Losses on sale of assets and other, net(29)(6)
Total$4,946$5,677
Significant segment expenses
Oil and gas lease operating expense1,1181,217
Transportation and gathering expense391407
Other operating and non-operating expense273244
Taxes other than on income252260
Depreciation, depletion and amortization1,6901,702
Other segment expenses (b)203150
Total$3,927$3,980
Segment income before other items$1,019$1,697
Losses from equity investments and other(2)—
Segment income from continuing operations before taxes$1,017$1,697

(a) Includes revenue from customers and all other revenues.

(b) Includes general and administrative expense and exploration expense.

MIDSTREAM AND MARKETING SEGMENT

Three months ended March 31,
millions20262025
Revenues and other income
Net sales (a)$397$173
Gains (losses) on sale of assets and other income, net(149)27
Total$248$200
Significant segment expenses
Transportation and gathering expense184203
Other operating and non-operating expense7981
Depreciation, depletion and amortization7173
Asset impairments and other charges105—
Other segment expenses (b)3429
Total$473$386
Segment losses before other items$(225)$(186)
Income from equity investments and other138114
Segment losses from continuing operations before taxes$(87)$(72)

(a) Includes revenue from customers and all other revenues.

(b) Includes taxes other than on income and general and administrative expense.

SEGMENT INVESTMENTS AND EXPENDITURES

The following table includes segment-level PP&E additions for the three months ended March 31, 2026 and 2025:

millionsOil and gasMidstream and marketingCorporate and eliminationsTotal
March 31, 2026
PP&E Additions$1,402$192$10$1,604
March 31, 2025
PP&E Additions$1,568$148$8$1,724

SEGMENT PROPERTY PLANT AND EQUIPMENT

The following table includes segment-level balance sheet information:

millionsOil and gasMidstream and marketingCorporate and eliminationsAssets held for saleTotal
As of March 31, 2026
Property Plant and Equipment, Gross$128,076$8,824$1,223$—$138,123
Accumulated DD&A$(71,859)$(2,576)$(572)$—$(75,007)
Property, Plant and Equipment, Net$56,217$6,248$651$—$63,116
Investments in unconsolidated entities$137$2,204$—$—$2,341
Total Assets$60,412$15,219$4,833$—$80,464
As of December 31, 2025
Property Plant and Equipment, Gross$126,896$9,638$1,219$—$137,753
Accumulated DD&A$(70,292)$(3,273)$(545)$—$(74,110)
Property, Plant and Equipment, Net$56,604$6,365$674$—$63,643
Investments in unconsolidated entities$129$2,346$—$—$2,475
Total Assets$60,393$13,901$3,372$6,520$84,186

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