PTTEP Operations Overview

Results - Sales Volume and Avg. Selling Price Solid volume addition from Oman Block 61 and Malaysia Sabah-H PTTEP UNIT: BOED 443,126 413,168 400,000 354,052 19,323 382,877 23,419 68,068 45,867 Volume Mix 327,004 345,207 20,443 Rest of World 85,215 102,239 24,790 93,774 Gas Liquid 300,000 85,248 82,692 Other SEA 80,401 29% 28% 200,000 Thailand & 274,243 249,481 272,819 273,527 100,000 221,813 242,072 MTJDA 71% 72% Q1 2021 Q2 2021 Product Price 2020 Q1 21 Q2 21 Q2 20 6M 2021 6M 2020 Revenue Mix Gas ($/MMBTU) 6.27 5.61 5.59 6.37 5.60 6.64 Liquid ($/BBL) 41.55 56.59 63.98 28.92 60.52 40.80 41% 43% Weighted Avg. ($/BOE) 38.92 40.38 42.19 34.97 41.35 40.15 Avg. Dubai ($/BBL) 42.27 60.21 67.02 30.72 63.62 40.72 59% 57% Avg. HSFO ($/BBL) 39.30 56.74 61.21 29.18 58.98 36.26 (High Sulphur Fuel Oil) Q1 2021 Q2 2021 Note: Include sales volume from ADNOC Gas Processing (AGP) Exclude Oman Block 61 deemed sales volume from tax payment by government 18 Energy Partner of Choice

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