Direct Equity Subscription of US$7.7 million

NOT FOR RELEASE, PUBLICATION OR DISTRIBUTION, IN WHOLE OR IN PART, DIRECTLY OR INDIRECTLY, IN, INTO OR FROM THE UNITED STATES, AUSTRALIA, JAPAN OR THE REPUBLIC OF SOUTH AFRICA OR ANY OTHER JURISDICTION IN WHICH SUCH RELEASE, PUBLICATION OR DISTRIBUTION WOULD BE UNLAWFUL.

THIS ANNOUNCEMENT CONTAINS INSIDE INFORMATION FOR THE PURPOSES OF THE MARKET ABUSE REGULATION (EU) No. 596/2014 AS IT FORMS PART OF UNITED KINGDOM DOMESTIC LAW ("MAR"). UPON THE PUBLICATION OF THIS ANNOUNCEMENT VIA A REGULATORY INFORMATION SERVICE, THIS INSIDE INFORMATION IS NOW CONSIDERED TO BE IN THE PUBLIC DOMAIN.

13 October 2026

ECO (ATLANTIC) OIL & GAS LTD.

("Eco", "Eco Atlantic", "Company" or, together with its subsidiaries, the "Group")

Direct Equity Subscription of US$7.7 million

Eco (Atlantic) Oil & Gas Ltd. (AIM: ECO, TSX-V: EOG) (Toronto, Canada), the oil and gas exploration company focused on the offshore Atlantic Margins, is pleased to announce it has entered into binding agreements with two Israel-based institutional investors (together, the “Subscribers”) to subscribe for new common shares in the capital of the Company (“Common Shares”) (the “Subscription” or the “Private Placement”).

Pursuant to the non-brokered Private Placement, the Company expects to raise aggregate gross proceeds of US$7.7 million (approximately £5.9 million, CAD 11.0 million) through the issue of 18,000,000 new Common Shares (the “Subscription Shares”) at an issue price of 32.5 pence (CAD 0.61) per share (the “Issue Price”).

The Subscription Shares will, when issued, rank pari passu in all respects with the existing Common Shares, including, without limitation, the right to receive dividends and other distributions declared, made or paid after the date of issue.

The Subscription Shares, when issued, will represent approximately 5.15 per cent. of the existing issued share capital of the Company (on a non-diluted basis) and 4.90 per cent. of the Company's issued share capital as enlarged by the Subscription (on a non-diluted basis).

Details of the Subscription

The Subscription is conditional upon, inter alia, Admission becoming effective, the subscription agreements not being terminated in accordance with their terms and receipt of the subscription monies. Closing of the Subscription is also subject to certain conditions including, but not limited to, the receipt of all necessary regulatory and other approvals, including the approval of the TSX Venture Exchange.

Gil Holzman, President & Chief Executive Officer of Eco Atlantic, commented:

"We are delighted with the continued support from shareholders through this US$7.7 million direct subscription. Their participation and long-term commitment represents a strong endorsement of the quality of our Atlantic Margin portfolio, our exploration and value-creation strategy, and our disciplined, capital-efficient approach.

This funding strengthens our financial position as we progress our licences in Guyana, Namibia and South Africa, and the completion of our acquisition of JHI, while maintaining a strong balance sheet and preserving significant upside for shareholders."

Use of Proceeds

The net proceeds of the Subscription will be used to further strengthen the Group’s financial position as it progresses and enhances its portfolio of assets and exploration activities. 

Admission and Total Voting Rights

Application is being made to the London Stock Exchange for admission of the Subscription Shares to trading on AIM (“Admission”). It is expected that Admission will take place at 8.00 a.m. (BST) on or around 19 October 2026. Application will be made to the TSX-V for the Subscription Shares to be admitted to trading on the TSX-V, with listing subject to the approval of the TSX-V and the Company satisfying all of the requirements of the TSX-V.

Following Admission, the issued share capital of the Company will consist of 367,709,027 Common Shares, each carrying the right to one vote. The Company does not hold any Common Shares in treasury. Therefore, the total number of voting rights in the Company will be 367,709,027. The above figure may be used by shareholders as the denominator for the calculations by which they will determine if they are required to notify their interest in, or a change to their interest in, the share capital of the Company under the FCA's Disclosure Guidance and Transparency Rules.

For more information, please visit www.ecooilandgas.com or contact the following:

For the purposes of MAR and Article 2 of Commission Implementing Regulation (EU) 2016/1055 (as it forms part of United Kingdom domestic law), the person responsible for arranging for the release of this Announcement on behalf of the Company is Gil Holzman, Co-Founder and CEO of Eco Atlantic.

Notes to editors

Eco Atlantic is a TSX-V and AIM-quoted Atlantic Margin-focused oil and gas exploration company with offshore license interests in Guyana, Namibia, and South Africa. Eco aims to deliver material value for its stakeholders through its role in the energy transition to explore for low carbon intensity oil and gas in stable emerging markets close to infrastructure.

In Offshore Guyana, in the proven Guyana-Suriname Basin, the Company operates a 100% Working Interest in the 1,354 km2 Orinduik Block. In Namibia, the Company holds Operatorship and an 85% Working Interest in three offshore Petroleum Licences: PELs: 97, 99, and 100, representing a combined area of 22,893 km2 in the Walvis Basin which on completion of the farm-down to BP will reduce to 25% in each licence. In Offshore South Africa, Eco holds a 5.25% Working Interest in Block 3B/4B and a 37.5% Working Interest in Block 1 CBK, in the Orange Basin, totalling approximately 37,510km2.

Additional Information

This news release does not constitute an offer to sell or a solicitation of an offer to buy nor shall there be any sale of any of the securities in the United States or in any jurisdiction in which such offer, solicitation or sale would be unlawful. The securities have not been and will not be registered under the United States Securities Act of 1933, as amended (the “1933 Act”), or any state securities laws and may not be offered or sold within the United States or to, or for account or benefit of, U.S. Persons (as defined in Regulation S under the 1933 Act) unless registered under the 1933 Act and applicable state securities laws, or an exemption from such registration requirements is available.

This Announcement should be read in its entirety.

Currency conversion in this announcement is calculated at £1/US$1.32/CAD1.88.

Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release.

This news release contains "forward-looking information" within the meaning of applicable Canadian securities legislation. All statements in this news release, other than statements of historical fact, that address events or developments that Eco expects to occur, are "forward-looking statements". Forward-looking statements are statements that are not historical facts and are generally, but not always, identified by the words "expects", "does not expect", "plans", "anticipates", "does not anticipate", "believes", "intends", "estimates", "projects", "potential", "scheduled", "forecast", "budget" and similar expressions, or that events or conditions "will", "would", "may", "could", "should" or "might" occur.

All such forward-looking statements are based on the opinions and estimates of the relevant management as of the date such statements are made and are subject to certain assumptions, important risk factors and uncertainties, many of which are beyond Eco's ability to control or predict. Forward-looking statements are necessarily based on estimates and assumptions that are inherently subject to known and unknown risks, uncertainties and other factors that may cause actual results, level of activity, performance or achievements to be materially different from those expressed or implied by such forward-looking statements. In the case of Eco, these facts include the Company’s anticipated use of proceeds of the Subscription, statements respecting closing of the Subscription and receipt of all regulatory approvals in respect of the Subscription, including final approval of the TSX-V, as well as anticipated operations in future periods, and plans related to its business and other matters that may occur in the future. This information relates to analyses and other information that is based on expectations of future performance and planned work programs.

Forward-looking information is subject to a variety of known and unknown risks, uncertainties and other factors which could cause actual events or results to differ from those expressed or implied by the forward-looking information. Should one or more risks and uncertainties materialize, or should underlying assumptions prove incorrect, actual results may vary materially from those described in the forward-looking information or statements.

Eco's forward-looking information is based on the reasonable beliefs, expectations and opinions of the Company's respective management on the date the statements are made, and Eco does not assume any obligation to update forward looking information if circumstances or management's beliefs, expectations or opinions change, except as required by law. For the reasons set forth above, investors should not place undue reliance on forward-looking information. For a complete discussion with respect to Eco and risks associated with forward-looking information and forward-looking statements, please refer to Eco's continuous disclosure documents which are filed on SEDAR+ at www.sedarplus.ca.