PTTEP Operations Overview

The Middle East Building strategic presence and gaining access to Upstream oil & gas asset as well as Midstream Complex UAE Oman Abu Dhabi Offshore 1,2 and 3 • High potential prospective resources with significant sizeable discoveries • Located North-west of Abu Dhabi Emirates, United Arab Emirates • Granted the award for exploration in January 2019-2020 • Operated by Eni Abu Dhabi B.V. (70% interest) Persian Gulf Abu Dhabi offshore 3 Abu Dhabi Offshore 1 AGP U.A.E. PDO (Block 6) ADNOC Gas Processing (AGP) • One of the largest gas processing complexes in the world (total capacity of 8 BCFD) JV: 3 plants with capacity of 1.2 BCFD Adnoc: 2 plants with capacity of 6.9 BCFD • Essential to Abu Dhabi and UAE's economy • Sizeable volumes of Propane, Butane and Naphtha offtake • Operated by ADNOC (68% interest) Abu Dhabi Offshore 2 Oman Onshore block 12 *Block awarded in 2019 **Block awarded in 2020 Production phase Exploration phase Midstream OMAN 34 PTTEP OLNG Block 61 Mukhaiza (Block 53) PDO (Block 6) • Largest asset covering around 1/3 of the country ⚫ Long-life asset, produced only 15% of reserves in-place • Average oil production volume of 627 KBPD in Q22021 • Operated by Petroleum Development of Oman (Joint Operating Company) • Mukhaizna (Block 53) • Largest single onshore producing field in Oman Average oil production volume of 96 KBPD in Q22021 • Operated by Occidental Petroleum (47% interest) Oman Onshore Block 12 • Located onshore central part of the Sultanate of Oman · Signed agreement with Oman's Ministry of Oil and Gas (MOG) for exploration and production rights in February 2020 • Operated by Total E&P Oman Block 12 B.V. (80% interest) Oman Block 61 Largest tight gas development in Middle East • Gas and condensate production capacity of 1,500 MMSCFD and 69,000 BPD respectively • Operated by BP Exploration (Epsilon) Limited (40% interest) Oman LNG • The only LNG facility in Oman Processing capacity 10.4 MTPA • • Contracted LNG sales to international buyers: Japan and South Korea • Government of Oman 51% (Operator) Energy Partner of Choice

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