EXHIBIT 99.3 Investor Relations Supplemental Schedules [OXY LOGO] OCCIDENTAL PETROLEUM 2005 First Quarter Net Income (Loss) ($ millions) REPORTED CORE INCOME SIGNIFICANT ITEMS AFFECTING INCOME EARNINGS ---------- ---------------------------------- ---------- Oil & Gas $ 1,349 $ 1,349 Chemical 214 214 Corporate Interest expense, net (61) 10 7.65% note redemption charge (51) Other (51) (51) Taxes (601) (4) Tax effect of adjustments (595) 10 State tax charge ---------- ---------- ---------- INCOME FROM CONTINUING OPERATIONS 850 16 866 Discontinued operations, net of tax (4) 4 Discontinued operations, net -- ---------- ---------- ---------- NET INCOME $ 846 $ 20 $ 866 ========== ========== ========== BASIC EARNINGS PER COMMON SHARE Income from continuing operations $ 2.12 $ 2.16 Discontinued operations, net of tax (0.01) -- ---------- ---------- Net Income $ 2.11 $ 2.16 ========== ========== 1 Investor Relations Supplemental Schedules [OXY LOGO] OCCIDENTAL PETROLEUM 2004 First Quarter Net Income (Loss) ($ millions) REPORTED CORE INCOME SIGNIFICANT ITEMS AFFECTING INCOME EARNINGS ---------- ---------------------------------- ---------- Oil & Gas $ 915 $ 915 Chemical 56 56 Corporate Interest expense, net (68) 11 Trust preferred redemption (57) Other (51) (51) Taxes (363) (20) Tax settlements (387) (4) Tax effect of adjustments ---------- ---------- ---------- INCOME FROM CONTINUING OPERATIONS 489 (13) 476 Discontinued operations, net of tax (2) 2 Discontinued operations, net -- ---------- ---------- ---------- NET INCOME $ 487 $ (11) $ 476 ========== ========== ========== BASIC EARNINGS PER COMMON SHARE Income from continuing operations $ 1.25 $ 1.22 Discontinued operations, net of tax (0.01) -- ---------- ---------- Net Income $ 1.24 $ 1.22 ========== ========== 2 Investor Relations Supplemental Schedules [OXY LOGO] OCCIDENTAL PETROLEUM Items Affecting Comparability of Core Earnings Between Periods The item(s) are included in core earnings but are shown below because they affect the comparability of core earnings between periods. PRE-TAX First Quarter ------------------------------ INCOME / (EXPENSE) 2005 2004 ------------ ------------ CORPORATE Environmental remediation (9) -- 3 Investor Relations Supplemental Schedules [OXY LOGO] OCCIDENTAL PETROLEUM Worldwide Effective Tax Rate ---------------------------------------------- QUARTERLY ---------------------------------------------- 2005 2004 2004 REPORTED INCOME QTR 1 QTR 4 QTR 1 ------------ ------------ ------------ Oil & Gas (a) 1,349 1,179 915 Chemicals 214 125 56 Corporate & other (112) (64) (119) ------------ ------------ ------------ Pre-tax income 1,451 1,240 852 Income tax expense Federal and state 349 261 193 Foreign (a) 252 205 170 ------------ ------------ ------------ Total 601 466 363 ------------ ------------ ------------ Income from continuing operations 850 774 489 ============ ============ ============ WORLDWIDE EFFECTIVE TAX RATE 41% 38% 43% 2005 2004 2004 CORE INCOME QTR 1 QTR 4 QTR 1 ------------ ------------ ------------ Oil & Gas (a) 1,349 1,179 915 Chemicals 214 125 56 Corporate & other (102) (185) (108) ------------ ------------ ------------ Pre-tax income 1,461 1,119 863 Income tax expense Federal and state 343 244 217 Foreign (a) 252 205 170 ------------ ------------ ------------ Total 595 449 387 ------------ ------------ ------------ Core income 866 670 476 ============ ============ ============ WORLDWIDE EFFECTIVE TAX RATE 41% 40% 45% (a) Revenues and income tax expense include taxes owed by Occidental but paid by governmental entities on its behalf. Oil and gas pre-tax income includes the following revenue amounts by periods. 2005 2004 2004 QTR 1 QTR 4 QTR 1 ------------ ------------ ------------ 187 143 116 4 Investor Relations Supplemental Schedules [OXY LOGO] OCCIDENTAL PETROLEUM 2005 First Quarter Net Income (Loss) Reported Income Comparison FIRST FOURTH QUARTER QUARTER 2005 2004 B / (W) ------------ ------------ ------------ Oil & Gas $ 1,349 $ 1,179 $ 170 Chemical 214 125 89 Corporate Interest expense, net (61) (53) (8) Other (51) (11) (40) Taxes (601) (466) (135) ------------ ------------ ------------ Income from continuing operations 850 774 76 Discontinued operations, net (4) (32) 28 ------------ ------------ ------------ Net Income $ 846 $ 742 $ 104 ============ ============ ============ Basic Earnings Per Common Share Income from continuing operations $ 2.12 $ 1.94 $ 0.18 Discontinued operations, net (0.01) (0.08) 0.07 ------------ ------------ ------------ Net Income $ 2.11 $ 1.86 $ 0.25 ============ ============ ============ Worldwide Effective Tax Rate 41% 38% -3% ============ ============ ============ ================================================================================ OCCIDENTAL PETROLEUM 2005 First Quarter Net Income (Loss) Core Earnings Comparison FIRST FOURTH QUARTER QUARTER 2005 2004 B / (W) ------------ ------------ ------------ Oil & Gas $ 1,349 $ 1,179 $ 170 Chemical 214 125 89 Corporate Interest expense, net (51) (53) 2 Other (51) (132) 81 Taxes (595) (449) (146) ------------ ------------ ------------ Net Income $ 866 $ 670 $ 196 ============ ============ ============ Basic Earnings Per Common Share $ 2.16 $ 1.68 $ 0.48 ============ ============ ============ Worldwide Effective Tax Rate 41% 40% -1% ============ ============ ============ 5 Investor Relations Supplemental Schedules [OXY LOGO] OCCIDENTAL PETROLEUM OIL & GAS CORE EARNINGS VARIANCE ANALYSIS ($ MILLIONS) 2005 1st Quarter $ 1,349 2004 4th Quarter 1,179 ------------ $ 170 ============ Sales Price $ 161 Sales Volume/Mix (6) Exploration Expense 41 All Others (26) ------------ TOTAL VARIANCE $ 170 ============ ================================================================================ OCCIDENTAL PETROLEUM CHEMICAL CORE EARNINGS VARIANCE ANALYSIS ($ MILLIONS) 2005 1st Quarter $ 214 2004 4th Quarter 125 ------------ $ 89 ============ Sales Price $ 79 Sales Volume/Mix (4) Operations/Manufacturing (5) * All Others 19 ------------ TOTAL VARIANCE $ 89 ============ * Higher feedstock costs offset by lower energy costs 6 Investor Relations Supplemental Schedules [OXY LOGO] OCCIDENTAL PETROLEUM 2005 First Quarter Net Income (Loss) Reported Income Comparison FIRST FIRST QUARTER QUARTER 2005 2004 B / (W) ------------ ------------ ------------ Oil & Gas $ 1,349 $ 915 $ 434 Chemical 214 56 158 Corporate Interest expense, net (61) (68) 7 Other (51) (51) -- Taxes (601) (363) (238) ------------ ------------ ------------ Income from continuing operations 850 489 361 Discontinued operations, net (4) (2) (2) ------------ ------------ ------------ Net Income $ 846 $ 487 $ 359 ============ ============ ============ Basic Earnings Per Common Share Income from continuing operations $ 2.12 $ 1.25 $ 0.87 Discontinued operations, net (0.01) (0.01) -- ------------ ------------ ------------ Net Income $ 2.11 $ 1.24 $ 0.87 ============ ============ ============ Worldwide Effective Tax Rate 41% 43% 2% ============ ============ ============ ================================================================================ OCCIDENTAL PETROLEUM 2005 First Quarter Net Income (Loss) Core Earnings Comparison FIRST FIRST QUARTER QUARTER 2005 2004 B / (W) ------------ ------------ ------------ Oil & Gas $ 1,349 $ 915 $ 434 Chemical 214 56 158 Corporate Interest expense, net (51) (57) 6 Other (51) (51) -- Taxes (595) (387) (208) ------------ ------------ ------------ Net Income $ 866 $ 476 $ 390 ============ ============ ============ Basic Earnings Per Common Share $ 2.16 $ 1.22 $ 0.94 ============ ============ ============ Worldwide Effective Tax Rate 41% 45% 4% ============ ============ ============ 7 Investor Relations Supplemental Schedules [OXY LOGO] OCCIDENTAL PETROLEUM OIL & GAS CORE EARNINGS VARIANCE ANALYSIS ($ MILLIONS) 2005 1st Quarter $ 1,349 2004 1st Quarter 915 ------------ $ 434 ============ Sales Price $ 529 Sales Volume/Mix (10) Exploration Expense 7 All Others (92) ------------ TOTAL VARIANCE $ 434 ============ ================================================================================ OCCIDENTAL PETROLEUM CHEMICAL CORE EARNINGS VARIANCE ANALYSIS ($ MILLIONS) 2005 1st Quarter $ 214 2004 1st Quarter 56 ------------ $ 158 ============ Sales Price $ 233 Sales Volume/Mix (6) Operations/Manufacturing (65) * All Others (4) ------------ TOTAL VARIANCE $ 158 ============ * Higher energy, feedstock costs and other manufacturing costs 8 Investor Relations Supplemental Schedules [OXY LOGO] OCCIDENTAL PETROLEUM SUMMARY OF OPERATING STATISTICS ------------------------------- FIRST QUARTER ----------------------------- 2005 2004 ------------ ------------ NET PRODUCTION PER DAY: UNITED STATES CRUDE OIL AND LIQUIDS (MBL) California 77 77 Permian 148 153 Horn Mountain 18 25 Hugoton 4 3 ------------ ------------ TOTAL 247 258 NATURAL GAS (MMCF) California 241 243 Hugoton 129 127 Permian 146 140 Horn Mountain 12 17 ------------ ------------ TOTAL 528 527 LATIN AMERICA CRUDE OIL (MBL) Colombia 32 36 Ecuador 42 43 ------------ ------------ TOTAL 74 79 MIDDLE EAST CRUDE OIL (MBL) Oman 23 14 Qatar 43 42 Yemen 35 39 ------------ ------------ TOTAL 101 95 NATURAL GAS (MMCF) Oman 56 11 OTHER EASTERN HEMISPHERE CRUDE OIL (MBL) Pakistan 5 9 NATURAL GAS (MMCF) Pakistan 78 75 BARRELS OF OIL EQUIVALENT (MBOE) - --------------------------------------------- SUBTOTAL CONSOLIDATED SUBSIDIARIES 537 543 OTHER INTERESTS COLOMBIA - MINORITY INTEREST (4) (4) RUSSIA - OCCIDENTAL NET INTEREST 30 28 YEMEN - OCCIDENTAL NET INTEREST 2 1 ------------ ------------ TOTAL WORLDWIDE PRODUCTION (MBOE) 565 568 ============ ============ 9 Investor Relations Supplemental Schedules [OXY LOGO] OCCIDENTAL PETROLEUM SUMMARY OF OPERATING STATISTICS ------------------------------- FIRST QUARTER ----------------------------- 2005 2004 ------------ ------------ OIL & GAS: - ---------- PRICES UNITED STATES Crude Oil ($/BBL) 44.24 32.62 Natural gas ($/MCF) 5.94 5.00 LATIN AMERICA Crude Oil ($/BBL) 39.87 28.99 MIDDLE EAST Crude Oil ($/BBL) 42.00 30.08 Natural Gas ($/MCF) 0.96 0.97 OTHER EASTERN HEMISPHERE Crude Oil ($/BBL) 37.97 29.37 Natural Gas ($/MCF) 2.21 2.23 TOTAL WORLDWIDE Crude Oil ($/BBL) 41.71 30.44 Natural Gas ($/MCF) 4.89 4.55 FIRST QUARTER ----------------------------- 2005 2004 ------------ ------------ EXPLORATION EXPENSE Domestic $ 27 $ 38 Latin America 15 1 Middle East 1 13 Other Eastern Hemisphere 4 2 ------------ ------------ TOTAL $ 47 $ 54 ============ ============ 10 Investor Relations Supplemental Schedules [OXY LOGO] OCCIDENTAL PETROLEUM CHEMICALS Volume (M Tons, except PVC Resins) FIRST QUARTER ----------------------------- MAJOR PRODUCTS 2005 2004 ------------ ------------ Chlorine 705 706 Caustic soda 714 732 Ethylene Dichloride 130 122 PVC Resins (millions of pounds) 1,025 1,071 CHEMICALS Prices (Index) FIRST QUARTER ----------------------------- MAJOR PRODUCTS 2005 2004 ------------ ------------ Chlorine 2.56 1.60 Caustic soda 1.52 0.71 Ethylene Dichloride 1.78 1.32 PVC Resins 1.29 0.94 1987 through 1990 average price = 1.00 CHLORINE - -------- OxyChem Commentary - ------------------ o As contract terms permitted, OxyChem fully implemented the $20 per ton price increase announced November 2004 effective December 2004. o OxyChem announced an additional $20 per ton increase in February to be effective April 1st to most accounts. Other U.S. chlor-alkali producers announced similar increases. o 2nd quarter industry operating rates are expected to decline slightly from the 1st quarter due to scheduled maintenance outages. However, the supply/demand balance is expected to tighten further as the seasonal demand for downstream products improves. o Order control programs for chlorine are still in effect and are expected to remain through the 2nd quarter for OxyChem and other U.S. producers. 11 Investor Relations Supplemental Schedules [OXY LOGO] Influencing Factors: - -------------------- The absence of a normal seasonal decline in 1st quarter chlorine operating rates is indicative of sustained strong chlorine demand. There are growing concerns in the market around 2nd quarter chlorine availability as the seasonal increase in chlorine demand is still ahead coupled with several scheduled production outages. As a result of the projected tightening in supply, OxyChem expects successful implementation of the latest price increase. CAUSTIC - ------- OxyChem Commentary - ------------------ o Caustic soda sales remained strong in the 1st quarter despite a seasonal decline in the demand for bleach. Although sales demand declined marginally in total from the 4th quarter, sales to the two largest market segments, pulp and paper and alumina, increased versus the 4th quarter. Sales volume is expected to increase in the 2nd quarter as seasonal demand improves. o As contract terms permitted, OxyChem successfully implemented in the 1st quarter the $50 DST price increase announced November 2004. An additional increase of $40 DST was announced in February to be implemented in the 2nd quarter. All other major U.S. producers have announced a similar increase. Market conditions are expected to support further price improvement in the 2nd quarter as seasonal demand for caustic soda increases. o OxyChem and other U.S. producers remain on order control programs for liquid caustic soda. Influencing Factors: - -------------------- Continued strength in the U.S. manufacturing sector is expected to keep demand and supply in balance for liquid caustic soda. Seasonal demand for liquid caustic soda is anticipated to narrow the supply/demand balance in the U.S. Gulf Coast and support further price improvement. However, mild temperatures throughout the U.S. could have an impact on demand and future price improvement. EDC - --- OxyChem Commentary - ------------------ o Scheduled and unscheduled 1st quarter VCM outages coupled with increased acetylene based VCM production out of China reduced the global demand for EDC in the 1st quarter. o EDC prices remained in the range of $500 - $520 per metric ton CIF Asia for the quarter. Prices have weakened slightly going into the 2nd quarter. Supply/demand balances will influence the direction of future pricing movements. 12 Influencing Factors: - -------------------- Planned and unplanned 2nd quarter VCM outages coupled with additional Chinese acetylene based VCM production will limit EDC export demand in the 2nd quarter. The limited EDC demand will be offset somewhat by tighter EDC supply as chlorine is directed into its merchant market to satisfy the seasonal surge in chlorine demand. Spot export shipments from the U.S. Gulf are expected to be minimal in the 2nd quarter. PVC/VCM - ------- OxyChem Commentary - ------------------ o OxyChem's 1st quarter PVC operating rate increased 2% over the 4th quarter 2004. o A strong domestic market in the 1st quarter resulted in increased operating rates for PVC and minimal inventory build by producers as they prepared for the seasonal spring surge in demand. o Domestic PVC resin prices increased $0.02 per pound in January, remained flat in February and increased another $0.02 per pound in March. An additional price increase of $0.01 per pound has been announced for April. o Westlake has restarted the Geismar VCM and PVC plants at 50% operating rates. It is expected that the plants will be brought up to capacity by January 2006. The Shintech Addis facility remains idle and is not expected to restart in 2005. o PVC resin export prices ended the quarter at $890 - $920 per metric ton CFR Southeast Asia. Exports for the 1st quarter were off 10% versus the prior year. o 1st quarter VCM demand was limited within the Americas but remained balanced with supply due to the Pemex and Dow outages. High freight rates and reduced demand to Asia made VCM sales from the U.S. Gulf Coast uneconomical. Pemex resumed operation of their Pajaritos plant in late March. o VCM export prices ended the quarter at $810 per metric ton FOB U.S. Gulf Coast to Latin America and $750 per metric ton CFR Southeast Asia. Demand to Asia weakened as Chinese producers brought on additional acetylene based VCM capacity Influencing Factors: - -------------------- Increased seasonal domestic demand will result in some margin improvement for VCM and PVC in the first half of 2005. Margin improvement on the export side for both VCM and PVC will be limited due to high freight rates from the U.S. Gulf Coast to other parts of the world and increased production in Asia. 13 Investor Relations Supplemental Schedules [OXY LOGO] OCCIDENTAL PETROLEUM SUMMARY OF OPERATING STATISTICS ------------------------------- FIRST QUARTER ----------------------------- CAPITAL EXPENDITURES ($MM) 2005 2004 ------------ ------------ Oil & Gas California $ 82 $ 61 Permian 63 62 Other - U.S. 29 4 Latin America 51 20 Middle East / North Africa 273 168 Other Eastern Hemisphere 8 11 Chemicals 28 16 Corporate 2 1 ------------ ------------ TOTAL $ 536 $ 343 ============ ============ FIRST QUARTER DEPRECIATION, DEPLETION & ----------------------------- AMORTIZATION OF ASSETS ($MM) 2005 2004 ------------ ------------ Oil & Gas Domestic $ 154 $ 156 Latin America 25 22 Middle East 90 69 Other Eastern Hemisphere 10 12 Chemicals 59 60 Corporate 6 5 ------------ ------------ TOTAL $ 344 $ 324 ============ ============ 14 Investor Relations Supplemental Schedules [OXY LOGO] OCCIDENTAL PETROLEUM CORPORATE ($ millions) 31-MAR-05 31-DEC-04 --------------- --------------- CAPITALIZATION Oxy Long-Term Debt (including current maturities) $ 3,365 $ 3,804 Subsidiary Preferred Stock 75 75 Others 26 26 --------------- --------------- TOTAL DEBT $ 3,466 $ 3,905 =============== =============== EQUITY $ 11,241 $ 10,550 =============== =============== Total Debt To Total Capitalization 24% 27% =============== =============== 15 Investor Relations Supplemental Schedules [OXY LOGO] OCCIDENTAL PETROLEUM CORPORATION 2004 QUARTERLY FINANCIAL DATA --------------------------------------------------------- RETROSPECTIVE APPLICATION Three Months Ended --------------------------------------------------------- 2004 March 31 June 30 September 30 December 31 Total Year ------------ ------------ ------------ ------------ ------------ Segment net sales Oil and gas 1,693 1,783 2,033 2,073 7,582 Chemical 834 911 945 985 3,675 Other 30 30 27 24 111 ------------ ------------ ------------ ------------ ------------ Net sales 2,557 2,724 3,005 3,082 11,368 ============ ============ ============ ============ ============ Gross profit 1,177 1,286 1,544 1,588 5,595 ============ ============ ============ ============ ============ Segment earnings Oil and gas 915 980 1,216 1,179 4,290 Chemical 56 92 141 125 414 ------------ ------------ ------------ ------------ ------------ 971 1,072 1,357 1,304 4,704 Unallocated corporate items Interest expense Interest expense, net (54) (59) (59) (52) (224) Trust preferred distributions and other (14) (1) -- (1) (16) ------------ ------------ ------------ ------------ ------------ (68) (60) (59) (53) (240) Income taxes (363) (384) (495) (466) (1,708) Other (51) (44) (44) (11) (150) ------------ ------------ ------------ ------------ ------------ Income from continuing operations 489 584 759 774 2,606 Discontinued operations, net (2) (3) (1) (32) (38) ------------ ------------ ------------ ------------ ------------ Net income 487 581 758 742 2,568 ============ ============ ============ ============ ============ Basic earnings per common share Income from continuing operations $ 1.25 $ 1.48 $ 1.91 $ 1.94 $ 6.59 Discontinued operations, net (0.01) -- -- (0.08) (0.10) ------------ ------------ ------------ ------------ ------------ Basic earnings per common share $ 1.24 $ 1.48 $ 1.91 $ 1.86 $ 6.49 ============ ============ ============ ============ ============ Diluted earnings per common share Income from continuing operations $ 1.24 $ 1.46 $ 1.88 $ 1.91 $ 6.50 Discontinued operations, net (0.01) -- -- (0.08) (0.10) ------------ ------------ ------------ ------------ ------------ Diluted earnings per common share $ 1.23 $ 1.46 $ 1.88 $ 1.83 $ 6.40 ============ ============ ============ ============ ============ Dividends per common share $ 0.275 $ 0.275 $ 0.275 $ 0.275 $ 1.10 ============ ============ ============ ============ ============ 16 Investor Relations Supplemental Schedules [OXY LOGO] OCCIDENTAL PETROLEUM CORPORATION 2004 QUARTERLY CORE FINANCIAL DATA RETROSPECTIVE APPLICATION Three Months Ended --------------------------------------------------------- 2004 March 31 June 30 September 30 December 31 Total Year ------------ ------------ ------------ ------------ ------------ Segment earnings Oil and gas 915 980 1,216 1,179 4,290 Chemical 56 92 141 125 414 ------------ ------------ ------------ ------------ ------------ 971 1,072 1,357 1,304 4,704 Unallocated corporate items Interest expense Interest expense, net (54) (59) (59) (52) (224) Trust preferred distributions and other (3) (1) -- (1) (5) ------------ ------------ ------------ ------------ ------------ (57) (60) (59) (53) (229) Income taxes (387) (384) (495) (449) (1,715) Other (51) (44) (44) (132) (271) ------------ ------------ ------------ ------------ ------------ CORE INCOME 476 584 759 670 2,489 Significant Items Affecting Earnings (see detail below) 11 (3) (1) 72 79 ------------ ------------ ------------ ------------ ------------ Reported income 487 581 758 742 2,568 ============ ============ ============ ============ ============ Basic earnings per common share Core Income $ 1.22 $ 1.49 $ 1.92 $ 1.68 $ 6.29 ============ ============ ============ ============ ============ SIGNIFICANT ITEMS AFFECTING EARNINGS Gain on Lyondell stock issuance (SAB 51) -- -- -- 121 121 Trust preferred redemption charge (11) -- -- -- (11) Settlement of tax issues 20 -- -- 27 47 Tax effect of adjustments 4 -- -- (44) (40) Discontinued operations, net (a) (2) (3) (1) (32) (38) ------------ ------------ ------------ ------------ ------------ 11 (3) (1) 72 79 ============ ============ ============ ============ ============ (a) These amounts are shown after-tax 17 Investor Relations Supplemental Schedules [OXY LOGO] OCCIDENTAL PETROLEUM CORPORATION 2003 QUARTERLY FINANCIAL DATA RETROSPECTIVE APPLICATION Three Months Ended --------------------------------------------------------- 2003 March 31 June 30 September 30 December 31 Total Year ------------ ------------ ------------ ------------ ------------ Segment net sales Oil and gas 1,553 1,440 1,480 1,530 6,003 Chemical 767 764 771 790 3,092 Other 28 41 46 30 145 ------------ ------------ ------------ ------------ ------------ Net sales 2,348 2,245 2,297 2,350 9,240 ============ ============ ============ ============ ============ Gross profit 1,075 1,005 1,038 1,088 4,206 ============ ============ ============ ============ ============ Segment earnings Oil and gas 875 755 796 787 3,213 Chemical 41 50 65 67 223 ------------ ------------ ------------ ------------ ------------ 916 805 861 854 3,436 Unallocated corporate items Interest expense Interest expense, net (124) (53) (59) (53) (289) Trust preferred distributions and other (11) (11) (12) (10) (44) ------------ ------------ ------------ ------------ ------------ (135) (64) (71) (63) (333) Income taxes (334) (292) (301) (304) (1,231) Other (52) (73) (42) (104) (271) ------------ ------------ ------------ ------------ ------------ Income from continuing operations 395 376 447 383 1,601 Discontinued operations, net (2) (2) (1) (1) (6) Cumulative effect of accounting changes, net (68) -- -- -- (68) ------------ ------------ ------------ ------------ ------------ Net income 325 374 446 382 1,527 ============ ============ ============ ============ ============ Basic earnings per common share Income from continuing operations $ 1.04 $ 0.99 $ 1.16 $ 0.99 $ 4.17 Discontinued operations, net -- (0.01) -- -- (0.01) Cumulative effect of accounting changes, net (0.18) -- -- -- (0.18) ------------ ------------ ------------ ------------ ------------ Basic earnings per common share $ 0.86 $ 0.98 $ 1.16 $ 0.99 $ 3.98 ============ ============ ============ ============ ============ Diluted earnings per common share Income from continuing operations $ 1.03 $ 0.98 $ 1.14 $ 0.97 $ 4.12 Discontinued operations, net -- (0.01) -- -- (0.01) Cumulative effect of accounting changes, net (0.18) -- -- -- (0.18) ------------ ------------ ------------ ------------ ------------ Diluted earnings per common share $ 0.85 $ 0.97 $ 1.14 $ 0.97 $ 3.93 ============ ============ ============ ============ ============ Dividends per common share $ 0.26 $ 0.26 $ 0.26 $ 0.26 $ 1.04 ============ ============ ============ ============ ============ 18 Investor Relations Supplemental Schedules [OXY LOGO] OCCIDENTAL PETROLEUM CORPORATION 2003 QUARTERLY CORE FINANCIAL DATA RETROSPECTIVE APPLICATION Three Months Ended --------------------------------------------------------- 2003 March 31 June 30 September 30 December 31 Total Year ------------ ------------ ------------ ------------ ------------ Segment earnings Oil and gas 875 755 796 787 3,213 Chemical 41 50 65 67 223 ------------ ------------ ------------ ------------ ------------ 916 805 861 854 3,436 Unallocated corporate items Interest expense Interest expense, net (63) (53) (59) (53) (228) Trust preferred distributions and other (11) (11) (12) (10) (44) ------------ ------------ ------------ ------------ ------------ (74) (64) (71) (63) (272) Income taxes (355) (292) (301) (304) (1,252) Other (52) (73) (42) (104) (271) ------------ ------------ ------------ ------------ ------------ CORE INCOME 435 376 447 383 1,641 Significant Items Affecting Earnings (see detail below) (110) (2) (1) (1) (114) ------------ ------------ ------------ ------------ ------------ Reported income 325 374 446 382 1,527 ============ ============ ============ ============ ============ Basic earnings per common share Core Income $ 1.15 $ 0.98 $ 1.16 $ 0.99 $ 4.27 ============ ============ ============ ============ ============ SIGNIFICANT ITEMS AFFECTING EARNINGS Debt repayment fee (61) -- -- -- (61) Tax effect of adjustments 21 -- -- -- 21 Discontinued operations, net (a) (2) (2) (1) (1) (6) Cumulative effect of accounting changes, net (a) (68) -- -- -- (68) ------------ ------------ ------------ ------------ ------------ (110) (2) (1) (1) (114) ============ ============ ============ ============ ============ (a) These amounts shown after-tax 19 Investor Relations Supplemental Schedules [OXY LOGO] Statements in this presentation that contain words such as "will", "expect" or "estimate", or otherwise relate to the future, are forward-looking and involve risks and uncertainties that could significantly affect expected results. Factors that could cause results to differ materially include, but are not limited to: global commodity pricing fluctuations and supply/demand considerations for oil, gas and chemicals; higher-than-expected costs; political risk; and not successfully completing (or any material delay in) any expansion, capital expenditure, acquisition, or disposition. Occidental disclaims any obligation to update any forward-looking statements. The United States Securities and Exchange Commission (SEC) permits oil and natural gas companies, in their filings with the SEC, to disclose only proved reserves demonstrated by actual production or conclusive formation tests to be economically producible under existing economic and operating conditions. We use certain terms in this presentation, such as probable, possible and recoverable reserves, that the SEC's guidelines strictly prohibit us from using in filings with the SEC. U.S. investors are urged to consider carefully the disclosure in our Form 10-K, available through the following toll-free telephone number, 1-888-OXYPETE (1-888-699-7383) or on the Internet at http://www.oxy.com. You also can obtain a copy from the SEC by calling 1-800-SEC-0330. 20