PTTEP Financial and Operational Overview

Volume and Price UNIT: BOED 500,456 Volume Mix 500,000 468,130 78,318 74,053 460,817 57,617 427,368 Gas Liquid 400,000 65,344 Rest of World 97,987 88,779 98,715 97,600 Other SEA 28% 28% 300,000 200,000 72% 72% Thailand & 324,151 295,362 314,421 264,424 MTJDA 100,000 Q4 2022 Q1 2023 Product Price 2022 Q4 22 Q1 23 Q1 22 Revenue Mix Gas ($/MMBTU) 6.27 6.70 6.52 6.07 Liquid ($/BBL) 94.89 85.40 78.14 91.19 45% 44% Weighted Avg. ($/BOE) 53.39 52.76 50.01 51.35 Avg. Dubai ($/BBL) 96.38 84.77 80.23 96.21 55% 56% Avg. HSFO ($/BBL) 82.38 62.44 64.22 87.96 (High Sulphur Fuel Oil) Q4 2022 Q1 2023 Note: Include sales volume from ADNOC Gas Processing (AGP) Exclude Oman Block 61 deemed sales volume from tax payment by government 14 PTTEP

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