Oil & Natural Gas Corporation Ltd.

Pursuant to regulation 47(3) of Listing Regulations, Oil and Natural Gas Corporation has informed about submission of a copy of the publication of Newspaper advertisement made on even date with regards to Public Announcement dated December 21, 2018 on subject Buy-back in Business Standard (English - all editions) and Business Standard (Hindi - all editions) pursuant to Securities and Exchange Board of India (Buy-Back of Securities) Regulations, 2018.

The above information is a part of company’s filings submitted to BSE.