Tamboran Resources prices public offering of 2,956,602 common shares at $35.00 per share; underwriters have a 30-day option to purchase additional shares

Tamboran Resources Corporation priced its previously announced underwritten public offering of 2,956,602 shares of common stock at a price to the public of US$35.00 per share. The company also granted the underwriters a 30-day option to purchase up to an additional 443,491 shares of common stock.

Offering size, proceeds and use of funds

The gross proceeds from the underwritten offering are expected to be US$103.5 million, excluding any proceeds that may be received from the exercise of the underwriters’ option to purchase additional shares.

The net proceeds of the offering are expected to be used to fund additional drilling in the Pilot Area, resource delineation in the Orion Acreage and the Beetaloo Central Development Area, drilling in the EP 161 acreage, as well as working capital and other general corporate purposes.

Timing and underwriting

The offering is expected to close on April 9, 2026, subject to customary closing conditions. RBC Capital Markets, LLC and Wells Fargo Securities, LLC are acting as joint book-running managers of the underwritten offering.

Regulatory and distribution details

The offering is being made only by means of the prospectus supplement and accompanying base prospectus filed with the U.S. Securities and Exchange Commission (SEC). Copies of the preliminary prospectus supplement and accompanying base prospectus may be obtained free of charge on the SEC’s website at www.sec.gov under Tamboran’s name, or from the joint book-running managers.

The shares are being offered and sold pursuant to an effective shelf registration statement on file with the SEC. This press release does not constitute an offer to sell or a solicitation of an offer to buy, and sales will be made in accordance with the U.S. Securities Act of 1933, as amended.

Company overview

Tamboran Resources Corporation (NYSE/ASX: TBN) is a growth-driven independent natural gas exploration and production company focused on the commercial development of natural gas resources in the Beetaloo Basin in Australia’s Northern Territory. Through its subsidiaries, Tamboran holds approximately 1.9 million net prospective acres and is the largest acreage holder in the Beetaloo Basin.

Forward-looking statements

The company’s release includes forward-looking statements subject to risks and uncertainties that could cause actual results to differ materially from expectations. Tamboran states it undertakes no obligation to update these forward-looking statements after the date of the release.

Contacts

Investor enquiries: Chris Morbey, Vice President – Investor Relations and Corporate Development, +61 2 8330 6626, Investors@tamboran.com

Media enquiries: +61 2 8330 6626, Media@tamboran.com