PTTEP Operations Overview

Financial Outlook 2021 Guidance Average Sales Volume* Average Gas Price KBOED USD/MMBTU ** Unit Cost USD/BOE ~405 Full year ~412 Q3 Credit Rating/Outlook Q3 & Full year ~5.7 Q3 & Full year ~28-29 EBITDA Margin % of Sales Revenue Q3 & Full year ~70-75% Note: * Include sales volume from ADNOC Gas Processing (AGP) Based on average Dubai oil price in 2021 at 67.6 $/BBL STANDARD & POOR'S RATINGS SERVICES MCGRAW HILL FINANCIAL BBB+ / Stable BBB stand-alone rating International Fitch Ratings BBB+ / Stable BBB stand-alone rating MOODY'S Baa1 Stable Baa2 stand-alone rating National TRIS RATING AAA / Stable 21 PTTEP Energy Partner of Choice

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