Financial Results for Nine Months Ended December 31, 2023

Contents JAPEX I. Financial Highlights II. Financial Results for the Nine Months Ended December 31, 2023 III. Revised Financial Forecasts for the fiscal year ending March 31, 2024 Note: This material also serves as the presentation material for the financial results briefing for the institutional investors and analysts to be held on February 13, 2024. Copyright © 2024 Japan Petroleum Exploration Co., Ltd. (JAPEX) All Rights Reserved. 2

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