Investor Presentaiton

II. Financial Forecasts for the Fiscal Year Ending March 31, 2024 E&P Business Sales Forecasts FY3/23 (a) Net sales: Million Yen Sales volume E&P Business Breakdown Crude oil FY3/24 (f) Net sales Sales volume 56,063 Net sales Sales volume 91,724 Change JAPEX Net sales +35,661 +64% 695 55,703 1,589 88,964 +893 +128% +33,261 +60% Crude oil Japan - 238 20,760 206 Thousand KL *1 - Crude oil overseas 436 33,084 1,364 12,410 [1] (31) 75,431 [2] +927 (13%) (8,350) (40%) +213% +42,347 +128% Purchased crude oil 20 1,858 18 1,122 (2) (13%) (735) (40%) Natural Gas - Overseas* *2 Million M3 11 360 95 2,760 [3] +84 +733% +2,399 +666% Main factors for change [1] Decrease in sales volume and sales price [2] Increase in sales volume of crude oil from Garraf Oil Field in Iraq and tight oil in U.S. Increase in sales volume due to the scheduled start of production at the Seagull project in U.K. North Sea [3] Increase in sales volume of tight oil in United States. Increase in sales volume due to the scheduled start of production at the Seagull project in U.K. North Sea *1 FY3/23 includes the amounts of 2 overseas subsidiaries (Japex Garraf Ltd. and Japex (U.S.) Corp.) and FY3/24 includes the amounts of 3 overseas subsidiaries (Japex Garraf Ltd., Japex (U.S.) Corp.and JAPEX UK E&P Ltd.) *2 FY3/23 include the amounts of Japex (U.S.) Corp. and FY3/24 includes the volume of 2 overseas subsidiaries (Japex (U.S.) Corp. and JAPEX UK E&P Ltd.) Copyright © 2023 Japan Petroleum Exploration Co., Ltd. (JAPEX) All Rights Reserved. 18

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