PTTEP Energy Project Overview

Projects Details | Thailand (as of September 2022) 1 Arthit 2 B6/27 Project Name Status Phase Participating Interest* (%) Sales Vol Gas (MMSCFD) Sales Vol Liquid (KBPD) Operator Production PTTEP 80% 287 16 Ensure gas delivery per DCQ Chevron 20% MOECO 4% Operator Production PTTEP 100% • JV Production 3 B8/32 & 9A PTTEP 25.01% 47 10 Chevron 51.66% MOECO 16.71% KrisEnergy 4.63% Palang Sophon 2% 4 Bongkot Operator Production PTTEP TotalEnergies 66.67% 33.33% 701 19 Latest Status Prepare for decommissioning activities Normal operations PTTEP Block 15 ended the concession on Apr 23, 2022 and operates under G2/61 project. Block 16 and Block 17 has maintained production until end of concession on Mar 7, 2023 Maintain production level as planned 5 Contract 4 (Pailin) JV Production PTTEP 60% 405 16 Ensure gas delivery at DCQ Chevron 35% MOECO 5% JV Production 6 E5 PTTEP 20% 7 Ensure gas delivery at DCQ EXXON MOBIL 80% Note: * ** *** PTTEP denotes respective PTTEP subsidiaries participating in the project Sales volume represent average volume for 100% of the project during 9M2022 Status: OP PTTEP operatorship/JOC = PTTEP joint operatorship/ JV = PTTEP Joint Venture Partner **** DCQ Daily Contractual Quantity 35

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