Investor Presentaiton

QUALITY ASSET PORTFOLIO A AAP-ON-94/1; (O); PI 26.882% B AA/ONDSF/KHEREM/2016; (O); PI 40.0% Assam B ASSAM ABAKAN K Umatara: PI-10% F Kharsang; (0); PI 30.0%* JAA-ONHP-2017/19; (O); PI 100.0% Portfolio of discovered resources - Ten blocks with discoveries producing / ready to be developed Diverse geographical footprint - Presence in 4 out of 7 producing basins in India Balanced portfolio - Offshore - 3 blocks/Onshore - 8 blocks & Oil/Gas Added 3 blocks in FY18-19 Investor presentation Q3 2019-20 Gujarat E CAMBAY C • Upside potential for exploration within portfolio with infrastructure for rapid monetisation Operatorship in majority of blocks to drive value creation • One exploratory block in our focus area North 12 Tamil G EASTERN OFFSHORE Nadu H East added to portfolio through OALP-I HINDUSTAN OIL EXPLORATION COMPANY LIMITED * Both directly and indirectly - G PY-1; (O); PI 100% H PY-3; PI 21% WESTERN OFFSHORE E Asjol; (0); PI 50.0% D North Balo; (O); PI 25.0% C CB-ON-7; (D); PI 35.0% 1 MB/OSDSF/B-80/2016; (O); PI 50.0% Offshore blocks - 2 on eastern offshore and one in Mumbai high H❤EC 00

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