Investor Presentaiton

Cash Flow Sensitivities . . • Oil & Gas Annualized cash flow changes ~$215 MM per $1.00 /bbl change in oil prices ~$185 MM per $1.00 / bbl change in WTI prices ~$30 MM per $1.00 /bbl change in Brent prices. Annualized cash flow changes ~$175 MM per $0.50 / MMBtu change in natural gas prices Production changes ~550 boed per $1.00 bbl change in Brent prices1 Midstream & Marketing Annualized cash flow changes ~$65 MM per $0.25/bbl change in Midland to MEH spread ~35 day lag due to trade month OxyChem Annualized cash flow changes ~$30 MM per $10 / ton change in realized caustic soda prices OXY Note: All cash flow sensitivities relate expected 2021 production and operating levels 1Based on $43 Brent 19

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