Result of Postal Ballot (Remote E-Voting) as per Regulation 44 of SEBI (LODR) Regulations 2015 and Scrutinizer''s Report is attached herewith.

Hindustan Oil Exploration Company Limited ‘Lakshmi Chambers’, 192, St. Mary’s Road, Alwarpet, Chennai - 600 018. INDIA. Phone: 91 (044) 66229000 ● Fax: 91 (044) 66229011 / 66229012 E-mail: contact@hoec.com ● Website: www.hoec.com CIN: L11100GJ1996PLC029880 July 24, 2026 By Online The Listing Department The Corporate Relationship Department National Stock Exchange of India Ltd., BSE Limited “Exchange Plaza”, 1st Floor, P. Jeejeebhoy Towers, Bandra Kurla Complex, Bandra (East), Dalal Street, Mumbai – 400 051 Mumbai – 400 001 Stock Code: HINDOILEXP Stock Code: 500186 Dear Sirs, Sub: Result of Postal Ballot (Remote E-voting) as per Regulation 44 of the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015 and submission of Scrutinizer's Report Pursuant to Regulation 44 of SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015 and Notice of Postal Ballot dated June 11, 2026 we are submitting herewith the details of voting results of the Postal Ballot conducted by the Company seeking approval of Members for the following business as per the prescribed format along with the Scrutinizer's Report. 1. Appointment of Ms. Preeti Grover (DIN: 00128513) as a Non-Executive Independent Director of the Company The same are also available at the website of the Company at https://hoec.com/postal-ballot/ Based on the Scrutinizer's Report, we would like to inform you that the aforesaid business as set out in the Notice has been duly approved by the Members of the Company with the requisite majority. We request you to kindly take the above information on record. Thank you, Yours Sincerely, For Hindustan Oil Exploration Company Limited Baroruchi Mishra Managing Director & CFO DIN: 09223144 Encl.: a/a Registered Office: ‘HOEC HOUSE’, Tandalja Road, Off Old Padra Road, Vadodara - 390 020. INDIA. Phone: 91 (0265) 2330766 ● E-mail: contact@hoec.com ● Website: www.hoec.com Hindustan Oil Exploration Company Limited ‘Lakshmi Chambers’, 192, St. Mary’s Road, Alwarpet, Chennai - 600 018. INDIA. Phone: 91 (044) 66229000 ● Fax: 91 (044) 66229011 / 66229012 E-mail: contact@hoec.com ● Website: www.hoec.com CIN: L11100GJ1996PLC029880 A) Details of Voting Results of Postal Ballot Sr. No. Particulars Details 1 Date of the Notice of Postal Ballot June 11, 2026 2 Total Number of shareholders as on 92740 as on cut-off date i.e. June 19, 2026 record date 3 Special Resolution Appointment of Ms. Preeti Grover (DIN: 00128513) as a Non-Executive Independent Director of the Company 4 Mode of voting Remote e-voting S. Agenda Resolution required Mode of Voting Remarks No. (Ordinary/Special) 1 Appointment of Ms. Preeti Grover (DIN: 00128513) as Special Resolution Remote e-voting Passed with a Non-Executive Independent Director of the requisite majority Company Registered Office: ‘HOEC HOUSE’, Tandalja Road, Off Old Padra Road, Vadodara - 390 020. INDIA. Phone: 91 (0265) 2330766 ● E-mail: contact@hoec.com ● Website: www.hoec.com Home Validate Resolution (1) Resolution required: (Ordinary / Special) Special Whether promoter/promoter group are interested in the agenda/resolution? No Appointment of Ms. Preeti Grover (DIN: 00128513) as a Non-Executive Independent Director of Description of resolution considered the Company % of Votes polled % of votes in No. of votes No. of votes – in No. of votes – % of Votes against Category Mode of voting No. of shares held on outstanding favour on votes polled favour against on votes polled shares polled (1) (2) (3)=[(2)/(1)]*100 (4) (5) (6)=[(4)/(2)]*100 (7)=[(5)/(2)]*100 E-Voting 0 0 0 0 0.0000 0.0000 Promoter and Poll 0 0 0 0 0 0.0000 0.0000 Promoter Group Postal Ballot (if applicable) 0 0 0 0 0.0000 0.0000 Total 0 0 0.0000 0 0 0.0000 0.0000 E-Voting 1250745 50.9274 1250745 0 100.0000 0.0000 Public- Poll 2455935 0 0.0000 0 0 0.0000 0.0000 Institutions Postal Ballot (if applicable) 0 0.0000 0 0 0.0000 0.0000 Total 2455935 1250745 50.9274 1250745 0 100.0000 0.0000 E-Voting 13987027 10.7769 13976243 10784 99.9229 0.0771 Public- Non Poll 129787354 0 0.0000 0 0 0.0000 0.0000 Institutions Postal Ballot (if applicable) 0 0.0000 0 0 0.0000 0.0000 Total 129787354 13987027 10.7769 13976243 10784 99.9229 0.0771 Total Total 132243289 15237772 11.5225 15226988 10784 99.9292 0.0708 Whether resolution is Pass or Not. Yes Disclosure of notes on resolution Add Notes * this fields are optional Details of Invalid Votes Category No. of Votes Promoter and Promoter Group 0 Public Insitutions 0 Public - Non Insitutions 0