26891117243138 2025 202420250.73A HSSE BblBcfBOEMbblsMboeMcfMmboeMmbbls 17.21135.26 00883A60093880883 CNOOC Limited 25(8610)8452 0883ir@cnooc.com.cn 16525100010165999077www.cnoocltd.comir@cnooc.com.cn www.sse.com.cnwww.hkexnews.hkA2512165 A 0088380883 A600938 27-6529-6 26-6Buzios7Mero4384.612.0% AI+ CCUS15-14,700 69520250.73 69.3% 41.7% 15.1% 171,7457.2%69,53312.8%384.66.1%12.0% 525-127-622-310-510-51827-622-310-5 Block7Zhylyoi 26-66-410/1119-19-75-35-2II29-1Buzios7Mero411-4 384.66.1% 266.57.6%118.12.8% 77.0%23.0%4.5%19-219-612.0% 9.5%26% AI60AI+ 5134-2/432-61,8004,7005.7 CCUS15-19-75ORC4,000 7,05525 (1) (2) 10%Arctic LNG 2 LLC (3) (4) (1) (2) (1)HSSE (HSSE)HSSE (2) (3) (4) (5) (6) (7) (8) (9)IT ITIT (10) (11) (1) (2) (1) (2) (i)XV78(ii)352(iii)C3(iv) (1) (i)XV78(ii)352(iii)(iv) XV23 (1)CNOOC (BVI) LimitedOOGCOOGCCNOOC (BVI) LimitedOOGC XV2310% 2410 CNOOC Petroleum North America ULCCPNA C1 13.51B (1) 2024202520250.73A 183171712-1716 A2025 2025 202510%10%2025 10%2025 10%10%10% 130%810 1,500 StabroekBuziosMero 207,608226,7708.4% 18,27717,4634.7%6.766.810.7% 5,2334,70811.2% 39,31837,5554.7% 37,36735,3855.6%13.8913.940.4% 1,9512,17010.1%0.730.8615.1% 5,3295,2212.1%1.912.046.4% 1,204538323.8% 25,06626,0313.7% 69,53379,73112.8% 321,4892024264,60921.5% 797,4682024791,6720.7% 136,1462024118,87514.5% 194,4362024187,9703.4% 2025109,1827.9%73,7836.4%22,45126.0% 57,6008.8% 8.4%2.5 9 202242160093832,29219332,099 1. 165 1. 1. 2. 3434 622436 662(3)63 406(2)407(2)407(3) 2. 2121 3. 4. **63%62%10% 5. 1,9111,614 6. (i) 16.5%16.5% 25% 25%15% 10%82%10%82% 15% 6. (ii) –5%–9%13%(VAT)–6%–1%7%–3%–2% (iii) 65520%40% 6. (iv) 0.3%0.8% 7. 8. 0.730.7434,69731,60232,139 10%10% 9. 58,24162,811 1,3161,3121,237 NWS 10. NWS 11. 12. 13. 13. 13. (1) (3)LNG2,145573 14. (1)36,810,000727663 15. CNOOC International Ltd.CNOOC Energy Holdings U.S.A. Inc.CNOOC Holdings U.S.A. Inc.100% 16. 1 14A14A(1)(2) 16. (1) (a)(b)(c)(d)(e)FPSO (2) (a)(b)(c) 16. (a) (b) (1)(a)(1)(b)(2)(a)(2)(b) (1)(c)(1)(d) (1)(e)FPSO (2)(c) 16. (i) 16. (ii)* (iii)f 16. 16. (vi) 9%8% 16. (a) (b) (c)FPSO (d) (e) 16. (f)31.8%14A6.3.3. 22,00050,00020 22,00022,00050,00020 17. (i) 5,68814,027 58,39652,683 17. (ii) 18. 53,72567,156 18. 18. 18. 19. 20. 3873343434343434 2410 3434 Investor RelationsTel: (8610) 8452 0883E-mail: ir@cnooc.com.cn Registered Office 65/F, Bank of China Tower,1 Garden Road, Hong Kong, ChinaTel: (852) 2213 2500 Media / Public Relations Tel: (8610) 8452 6641E-mail: mr@cnooc.com.cn Beijing Office CNOOC Tower, No. 25 ChaoyangmenBeidajie, Dongcheng District, Beijing, ChinaZip Code: 100010Website: www.cnoocltd.com