Annual Business Update and ESG Report

Results | Guidance Average Sales Volume Average Gas Price* KBOED Q2 ~467 ~467 Full Year USD/MMBTU Q2 Financial Guidance ~6.2 ~6.4 Full Year * Based on average Dubai oil price in 2022 at 96 $/BBL, with sole investment in G1/61 (Erawan) Debt Profile 2021 Q1 2022 Debt to Equity 0.33 0.33 Debt to EBITDA 0.80 0.72 Average Cost of Debt 3.38% 3.38% Average Loan Life 12.7 Yrs Interest Rate 83:17 12.4 Yrs 83:17 (Fixed: Float) Note: Debt excludes Hybrid bonds 17 Unit Cost USD/BOE Q2 ~28-29 Full Year EBITDA Margin % of Sales Revenue Q2 82 ~70-75% Credit Ratings STANDARD & POOR'S RATINGS SERVICES MCGRAW HILL FINANCIAL BBB stand-alone rating International Full Year National MOODY'S Baa2 stand-alone rating TRIS RATING BBB+ Stable Fitch Ratings Baa1 Stable BBB stand-alone rating BBB+ Stable AAA Stable PTTEP

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