EXHIBIT 99.3 Investor Relations Supplemental Schedules [OXY LOGO] OCCIDENTAL PETROLEUM 2003 Second Quarter Net Income (Loss) ($ millions) REPORTED CORE INCOME SIGNIFICANT ITEMS AFFECTING INCOME EARNINGS ------------ ------------------------------------- ------------ Oil & Gas $ 637 $ 637 Chemical 43 43 Corporate Interest on debt, net (53) (53) Trust pfd distributions & other (11) (11) Other (75) (75) Taxes (167) (167) ------------ ------------ ------------ NET INCOME $ 374 $ -- $ 374 ============ ============ ============ BASIC EARNINGS PER SHARE NET INCOME $ 0.98 $ 0.98 ============ ============ 1 Investor Relations Supplemental Schedules [OXY LOGO] OCCIDENTAL PETROLEUM 2002 Second Quarter Net Income (Loss) ($ millions) REPORTED CORE INCOME SIGNIFICANT ITEMS AFFECTING INCOME EARNINGS ------------ ------------------------------------- ------------ Oil & Gas $ 421 $ 421 Chemical 34 34 Corporate Interest on debt, net (74) (74) Trust pfd distributions & other (9) (9) Other (30) (30) Taxes (101) (101) ------------ ------------ ------------ Income from continuing operations 241 -- 241 Discontinued operations, net (1) 1 Discontinued operations -- ------------ ------------ ------------ NET INCOME $ 240 $ 1 $ 241 ============ ============ ============ BASIC EARNINGS PER SHARE Income from continuing operations $ 0.64 $ 0.64 Discontinued operations, net -- -- ------------ ------------ NET INCOME (LOSS) $ 0.64 $ 0.64 ============ ============ 2 Investor Relations Supplemental Schedules [OXY LOGO] OCCIDENTAL PETROLEUM 2003 First Six Months Net Income (Loss) ($ millions) REPORTED CORE INCOME SIGNIFICANT ITEMS AFFECTING INCOME EARNINGS ------------ ----------------------------------------------- ------------ Oil & Gas $ 1,364 $ 1,364 Chemical 78 78 Corporate Interest on debt, net (177) 61 Debt remarket fee (116) Trust pfd distributions & other (22) (22) Other (131) (131) Taxes (345) (21) Tax effect of adjustments (366) ------------ ------------ ------------ Income from continuing operations 767 40 807 Cumulative effect of accounting changes (68) 68 Cumulative effect of acct changes -- ------------ ------------ ------------ NET INCOME $ 699 $ 108 $ 807 ============ ============ ============ BASIC EARNINGS PER SHARE Income from continuing operations $ 2.02 $ 2.12 Cumulative effect of accounting changes (0.18) -- ------------ ------------ BASIC EARNINGS PER SHARE $ 1.84 $ 2.12 ============ ============ 3 Investor Relations Supplemental Schedules [OXY LOGO] OCCIDENTAL PETROLEUM 2002 First Six Months Net Income (Loss) ($ millions) REPORTED CORE INCOME SIGNIFICANT ITEMS AFFECTING INCOME EARNINGS ------------ ----------------------------------------------- ------------ Oil & Gas $ 727 $ 727 Chemical 3 3 Corporate Interest on debt, net (144) (144) Trust pfd distributions & other (21) (21) Other (56) (56) Taxes (145) (145) ------------ ------------ ------------ Income from continuing operations 364 -- 364 Discontinued operations, net (4) 4 Discontinued operations -- Cumulative effect of accounting changes (95) 95 Cumulative effect of acct changes ------------ ------------ ------------ NET INCOME $ 265 $ 99 $ 364 ============ ============ ============ BASIC EARNINGS PER SHARE Income from continuing operations $ 0.97 $ 0.97 Discontinued operations, net (0.01) -- Cumulative effect of accounting changes (0.25) -- ------------ ------------ NET INCOME (LOSS) $ 0.71 $ 0.97 ============ ============ 4 Investor Relations Supplemental Schedules [OXY LOGO] OCCIDENTAL PETROLEUM ITEMS AFFECTING COMPARABILITY OF CORE EARNINGS BETWEEN PERIODS PRE-TAX INCOME / (EXPENSE) SECOND QUARTER SIX MONTHS ----------------------------- ----------------------------- 2003 2002 2003 2002 ------------ ------------ ------------ ------------ OIL & GAS Exploration asset write-offs -- (33) -- (33) Gain on sale of GOM assets 1 14 -- 14 -- CHEMICALS Reorganizations / severance (15) -- (15) (14) Equistar equity earnings -- (4) -- (40) Chlorine derivatives asset impairment (9) -- (9) -- CORPORATE Equity earnings (15) -- (38) -- Environmental remediation (13) -- (13) -- 1 Amount shown after-tax 5 Investor Relations Supplemental Schedules [OXY LOGO] OCCIDENTAL PETROLEUM 2003 SECOND QUARTER NET INCOME (LOSS) REPORTED INCOME COMPARISON SECOND FIRST QUARTER QUARTER 2003 2003 B / (W) ---------- ---------- ---------- OIL & GAS $ 637 $ 727 $ (90) CHEMICAL 43 35 8 CORPORATE INTEREST ON DEBT, NET (53) (124) 71 TRUST PFD DISTRIBUTIONS & OTHER (11) (11) -- OTHER (75) (56) (19) TAXES (167) (178) 11 ---------- ---------- ---------- INCOME FROM CONTINUING OPERATIONS 374 393 (19) CUMULATIVE EFFECT OF ACCOUNTING CHANGES -- (68) 68 ---------- ---------- ---------- NET INCOME $ 374 $ 325 $ 49 ========== ========== ========== BASIC EARNINGS PER SHARE $ 0.98 $ 0.86 $ 0.12 ========== ========== ========== EFFECTIVE TAX RATE 32% 31% -1% ========== ========== ========== ================================================================================ OCCIDENTAL PETROLEUM 2003 SECOND QUARTER NET INCOME (LOSS) CORE EARNINGS COMPARISON SECOND FIRST QUARTER QUARTER 2003 2003 B / (W) ---------- ---------- ---------- OIL & GAS $ 637 $ 727 $ (90) CHEMICAL 43 35 8 CORPORATE INTEREST ON DEBT, NET (53) (63) 10 TRUST PFD DISTRIBUTIONS & OTHER (11) (11) -- OTHER (75) (56) (19) TAXES (167) (199) 32 ---------- ---------- ---------- NET INCOME $ 374 $ 433 $ (59) ========== ========== ========== BASIC EARNINGS PER SHARE $ 0.98 $ 1.14 $ (0.16) ========== ========== ========== EFFECTIVE TAX RATE 32% 31% -1% ========== ========== ========== 6 Investor Relations Supplemental Schedules [OXY LOGO] OCCIDENTAL PETROLEUM OIL & GAS CORE EARNINGS VARIANCE ANALYSIS ($ MILLIONS) 2003 2nd Quarter $ 637 2003 1st Quarter 727 -------- $ (90) ======== Price Variance $ (133) Volume Variance 29 Exploration Expense Variance (1) All Other 15 -------- TOTAL VARIANCE $ (90) ======== ====================================================================== OCCIDENTAL PETROLEUM CHEMICAL CORE EARNINGS VARIANCE ANALYSIS ($ MILLIONS) 2003 2nd Quarter $ 43 2003 1st Quarter 35 -------- $ 8 ======== Sales Price $ 32 Sales Volume/Mix (12) Operations/Manufacturing 8 All Other (20) -------- TOTAL VARIANCE $ 8 ======== 7 Investor Relations Supplemental Schedules [OXY LOGO] OCCIDENTAL PETROLEUM 2003 SECOND QUARTER NET INCOME (LOSS) REPORTED INCOME COMPARISON SECOND SECOND QUARTER QUARTER 2003 2002 B / (W) ---------- ---------- ---------- OIL & GAS $ 637 $ 421 $ 216 CHEMICAL 43 34 9 CORPORATE INTEREST ON DEBT, NET (53) (74) 21 TRUST PFD DISTRIBUTIONS & OTHER (11) (9) (2) OTHER (75) (30) (45) TAXES (167) (101) (66) ---------- ---------- ---------- INCOME FROM CONTINUING OPERATIONS 374 241 133 DISCONTINUED OPERATIONS, NET -- (1) 1 ---------- ---------- ---------- NET INCOME $ 374 $ 240 $ 134 ========== ========== ========== BASIC EARNINGS PER SHARE $ 0.98 $ 0.64 $ 0.34 ========== ========== ========== EFFECTIVE TAX RATE 32% 29% -3% ========== ========== ========== ================================================================================ OCCIDENTAL PETROLEUM 2003 SECOND QUARTER NET INCOME (LOSS) CORE EARNINGS COMPARISON SECOND SECOND QUARTER QUARTER 2003 2002 B / (W) ---------- ---------- ---------- OIL & GAS $ 637 $ 421 $ 216 CHEMICAL 43 34 9 CORPORATE INTEREST ON DEBT, NET (53) (74) 21 TRUST PFD DISTRIBUTIONS & OTHER (11) (9) (2) OTHER (75) (30) (45) TAXES (167) (101) (66) ---------- ---------- ---------- NET INCOME $ 374 $ 241 $ 133 ========== ========== ========== BASIC EARNINGS PER SHARE $ 0.98 $ 0.64 $ 0.34 ========== ========== ========== EFFECTIVE TAX RATE 32% 29% -3% ========== ========== ========== 8 Investor Relations Supplemental Schedules [OXY LOGO] OCCIDENTAL PETROLEUM OIL & GAS CORE EARNINGS VARIANCE ANALYSIS ($ MILLIONS) 2003 2nd Quarter $ 637 2002 2nd Quarter 421 -------- $ 216 ======== Price Variance $ 201 Volume Variance 30 Exploration Expense Variance 30 All Other (45) -------- TOTAL VARIANCE $ 216 ======== ====================================================================== OCCIDENTAL PETROLEUM CHEMICAL CORE EARNINGS VARIANCE ANALYSIS ($ MILLIONS) 2003 2nd Quarter $ 43 2002 2nd Quarter 34 -------- $ 9 ======== Sales Price $ 130 Sales Volume/Mix (20) Operations/Manufacturing (76) * All Other (25) -------- TOTAL VARIANCE $ 9 ======== * Higher energy and feedstock costs. 9 Investor Relations Supplemental Schedules [OXY LOGO] OCCIDENTAL PETROLEUM SUMMARY OF OPERATING STATISTICS ------------------------------- SECOND QUARTER SIX MONTHS --------------------- --------------------- 2003 2002 2003 2002 -------- -------- -------- -------- NET PRODUCTION PER DAY: UNITED STATES CRUDE OIL AND LIQUIDS (MBL) California 81 86 79 88 Permian 151 143 147 141 Horn Mountain 19 -- 16 3 Hugoton 3 3 4 -- -------- -------- -------- -------- TOTAL 254 232 246 232 NATURAL GAS (MMCF) California 252 290 257 298 Hugoton 143 150 143 154 Permian 131 125 125 127 Horn Mountain 15 -- 10 -- -------- -------- -------- -------- TOTAL 541 565 535 579 LATIN AMERICA CRUDE OIL (MBL) Colombia 36 42 37 39 Ecuador 18 12 17 13 -------- -------- -------- -------- TOTAL 54 54 54 52 MIDDLE EAST AND OTHER EASTERN HEMISPHERE CRUDE OIL (MBL) Oman 11 15 12 16 Pakistan 10 9 10 8 Qatar 51 43 49 43 Yemen 35 33 37 40 -------- -------- -------- -------- TOTAL 107 100 108 107 NATURAL GAS (MMCF) Pakistan 77 50 76 50 BARRELS OF OIL EQUIVALENT (MBOE) - --------------------------------- CONSOLIDATED SUBSIDIARIES 518 489 510 496 OTHER INTERESTS COLOMBIA - MINORITY INTEREST (5) (5) (4) (5) RUSSIA - OCCIDENTAL NET INTEREST 30 28 30 27 YEMEN - OCCIDENTAL NET INTEREST 1 -- 2 -- -------- -------- -------- -------- TOTAL WORLDWIDE PRODUCTION (MBOE) 544 512 538 518 ======== ======== ======== ======== 10 Investor Relations Supplemental Schedules [OXY LOGO] SUMMARY OF OPERATING STATISTICS ------------------------------- SECOND QUARTER SIX MONTHS -------------------- -------------------- 2003 2002 2003 2002 -------- -------- -------- -------- OIL & GAS: - ---------- PRICES UNITED STATES Crude Oil ($/BBL) 26.89 23.88 29.15 21.35 Natural gas ($/MCF) 5.46 2.92 4.89 2.64 LATIN AMERICA Crude oil ($/BBL) 25.01 22.78 28.06 20.67 MIDDLE EAST AND OTHER EASTERN HEMISPHERE Crude oil ($/BBL) 25.22 24.27 27.71 22.15 Natural Gas ($/MCF) 1.91 2.04 1.91 2.28 SECOND QUARTER SIX MONTHS -------------------- -------------------- 2003 2002 2003 2002 -------- -------- -------- -------- Exploration Expense Domestic $ 20 $ 44 $ 45 $ 54 Latin America 5 7 6 14 Middle East and Other 4 8 6 18 Eastern Hemisphere -------- -------- -------- -------- TOTAL $ 29 $ 59 $ 57 $ 86 ======== ======== ======== ======== 11 Investor Relations Supplemental Schedules [OXY LOGO] OCCIDENTAL PETROLEUM CHEMICALS Volume (M Tons) SECOND QUARTER SIX MONTHS --------------------- --------------------- MAJOR PRODUCTS 2003 2002 2003 2002 -------- -------- -------- -------- Chlorine 664 735 1,350 1,436 Caustic 719 743 1,356 1,317 Ethylene Dichloride 108 140 239 292 PVC Resins 872 1,151 1,935 2,193 CHEMICALS Prices (Index) SECOND QUARTER SIX MONTHS --------------------- --------------------- MAJOR PRODUCTS 2003 2002 2003 2002 -------- -------- -------- -------- Chlorine 1.81 0.77 1.72 0.64 Caustic 0.87 0.66 0.84 0.79 Ethylene Dichloride 1.17 1.29 1.21 0.94 PVC Resins 0.97 0.70 0.92 0.62 CHLORINE - -------- OXYCHEM COMMENTARY - ------------------ o The expected seasonal demand improvement was hindered by Spring weather that was both cooler and wetter than normal. This resulted in a slower than anticipated start to the bleach and water treatment season and reduced construction activity. o Pricing improved in the 2nd quarter as the $70 per ton price increase, announced for April 1st, was implemented where contract terms permitted. o Concerns over product availability in the vinyl's chain resulted in demand peaking earlier in 2003 versus previous years. Consequently, chlorine operating rates came under pressure in the 2nd quarter as customers worked down inventories built in the 1st quarter. o Chlorine industry operating rates declined approximately 1% in the 2nd quarter versus 1st quarter 2003. 12 Investor Relations Supplemental Schedules [OXY LOGO] INFLUENCING FACTORS: - -------------------- Demand is expected to pick up in the 3rd quarter as downstream inventories are depleted, but will continue to be impacted by weak overall economic conditions. CAUSTIC - ------- OXYCHEM COMMENTARY - ------------------ o Demand for caustic soda improved marginally over the 1st quarter led by the seasonal demand for bleach. Volume into the refining and organic markets also showed slight improvement over the prior quarter. Continued improvement is expected through the 3rd quarter. o As a result of higher natural gas pricing in the 1st quarter, U.S. producers announced a $125 per ton price increase for domestic liquid caustic soda in the 2nd quarter. However, this price increase was only marginally successful due to strong competitive activity and a decline in natural gas pricing from 1st quarter levels. Aggressive pricing from import liquid caustic soda has also adversely impacted the domestic market. INFLUENCING FACTORS: - -------------------- Supply and demand for caustic soda remains precariously balanced. Forecasted improvement in the U.S. manufacturing sector is expected to lead to a gradual upswing in caustic soda demand. Tightening of caustic supply and higher energy costs would provide an incentive for future price increases. EDC - --- OXYCHEM COMMENTARY - ------------------ o Strong demand in the 1st quarter led to rising prices and increased inventories throughout the Far East vinyl's chain. Demand began to falter in the 2nd quarter due to the uncertainty associated with Iraq and the SARS outbreak. As a result, prices fell quickly before beginning a slow recovery in mid May. o Recent price improvements have been dampened by reduced VCM production due to scheduled EDC outages in the 2nd quarter. The completion of the outages should lead to price improvement in the 3rd quarter but will be very dependent on downstream PVC demand in China. 13 Investor Relations Supplemental Schedules [OXY LOGO] INFLUENCING FACTORS: - -------------------- Continued economic recovery in Asia and the U.S. are required for sustainable improvement. China's ability to produce PVC without EDC could hamper growth. Also uncertain is the impact of duties imposed by China on select PVC importers. PVC/VCM - ------- OXYCHEM COMMENTARY - ------------------ o Sales were weak in the 2nd quarter as end users drew down inventories built in the 1st quarter. Softness in the underlying demand worsened the slowdown. o Resin producers have reduced output in an effort to control inventories. 2nd quarter resin inventories are expected to end at or slightly below beginning year levels. High costs continue to limit incremental production for exports and the spot market. o Capacities still exclude the former Borden Geismar and Addis facilities, which remain idle. With the weakness in the domestic market and the import duties implemented in China, the expectation is that the Addis facility will start up no earlier than the 1st quarter of 2004, if then. There is little indication that the Geismar PVC plant will restart in the near future. o After 1st quarter price increases totaling $.06/lb, another price increase of $.02/lb was implemented in April. May prices were flat with April, while June prices dropped $.01/lb in certain markets. Most producers are supporting an announced $.02/lb increase for August. o Demand for PVC exports improved slightly in the 2nd quarter due mostly to outages in Asia. After declining initially, prices stabilized at 1st quarter levels of $650/MT. o Demand for VCM fell as PVC sales declined in North America. VCM sales to Latin America also weakened due to reduced local demand and increased PVC exports from the U.S. o Export VCM prices began the quarter at $550-$560/MT and ended the quarter at $480/MT. INFLUENCING FACTORS: - -------------------- Margins gained through PVC price increases and lower raw material costs are largely offset by volume reductions. Volume and margin improvement is dependant on the strengthening of underlying demand and economic recovery. 14 Investor Relations Supplemental Schedules [OXY LOGO] SUMMARY OF OPERATING STATISTICS SECOND QUARTER SIX MONTHS --------------------- --------------------- CAPITAL EXPENDITURES ($MM) 2003 2002 2003 2002 -------- -------- -------- -------- Oil & Gas California $ 53 $ 61 $ 97 $ 121 Permian 60 44 115 103 Other - U.S. 12 28 26 44 Latin America 30 42 37 51 Middle East and Other 128 94 233 178 Eastern Hemisphere Chemicals 205 1 21 273 2 35 Corporate 5 13 10 25 -------- -------- -------- -------- TOTAL $ 493 $ 303 $ 791 $ 557 ======== ======== ======== ======== 1 Includes $180 for buyout of VCM plant lease 2 Includes $180 for buyout of VCM plant lease and $44 for buyout of railcar leases SECOND QUARTER SIX MONTHS DEPRECIATION, DEPLETION & --------------------- --------------------- AMORTIZATION OF ASSETS ($MM) 2003 2002 2003 2002 -------- -------- -------- -------- Oil & Gas Domestic $ 158 $ 147 $ 323 $ 296 Latin America 14 9 27 18 Middle East and Other 62 48 122 101 Eastern Hemisphere Chemicals 48 47 92 95 Corporate 4 2 7 4 -------- -------- -------- -------- TOTAL $ 286 $ 253 $ 571 $ 514 ======== ======== ======== ======== 15 Investor Relations Supplemental Schedules [OXY LOGO] OCCIDENTAL PETROLEUM CORPORATE ($ millions) 30-JUN-03 31-DEC-02 ------------- ------------- CAPITALIZATION Oxy Long-Term Debt (including current maturities) $ 4,093 1 $ 4,203 Trust Preferred Securities 454 455 Subsidiary Preferred Stock 75 75 Others 26 26 ------------- ------------- TOTAL DEBT $ 4,648 $ 4,759 ============= ============= EQUITY $ 7,054 $ 6,318 ============= ============= Total Debt To Total Capitalization 40% 43% ============= ============= 1 Includes $56 million due to the adoption of FIN 46 16 Investor Relations Supplemental Schedules [OXY LOGO] Portions of this presentation are "forward-looking statements" as defined by the Private Securities Litigation Reform Act of 1995, and involve risks and uncertainties that could significantly affect expected results. No assurance can be given that the results or statement of expectations or beliefs will be attained. Factors that may cause actual results to differ materially are contained in the March 31, 2002 form 10-K on file with the SEC. 17