SEC Form 4 · accession 0001193125-26-324324
Tamboran Resources Corp · TBN
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owners
Bryan Sheffield
Director · 10% Owner
Formentera Investments LLC
10% Owner
Spraberry Interests, LLC
10% Owner
Sheffield Holdings, LP
10% Owner
Daly Waters Energy, LP
10% Owner
Formentera Australia Fund I GP, LP
10% Owner
Period of report
May 28, 2026
Accepted (ET)
Jul 29, 2026 · 6:19 pm EDT
Rule 10b5-1 plan
box not checked
Issuer CIK
0001997652
Table I — non-derivative securities
| Security | Date | Code | Shares | Price | A/D | Owned after | D/I | Nature of ownership |
|---|---|---|---|---|---|---|---|---|
| Common StockF1,F2,F3 | May 28, 2026 | A | 339,500 | — | A | 3,646,756 | I | See footnote |
Table II — derivative securities
No Table II lines on this filing.
Explanation of responses
- F1The shares were issued to Sheffield Holdings, LP ("Sheffield Holdings") in exchange for common shares of Falcon Oil & Gas Ltd. ("Falcon") held by Sheffield Holdings, at an exchange ratio of 0.00687 shares of Tamboran Resources Corporation ("Tamboran") common stock for each Falcon common share, pursuant to an Arrangement Agreement, dated as of September 30, 2025, by and among Tamboran, Tamboran (Beetaloo) Pty Ltd, Tamboran Resources Investments Holding Corporation and Falcon, as amended by that certain Amending Agreement dated as of March 31, 2026, (collectively, the "Arrangement Agreement"). The Arrangement Agreement was subject to certain customary closing conditions. The closing conditions were satisfied and the Arrangement Agreement closed on May 28, 2026. No cash purchase price was paid by Sheffield Holdings for the shares of Tamboran common stock received in the exchange.
- F2Represents 2,586,904 securities held directly by Sheffield Holdings, 876,197 securities held directly by Daly Waters Energy, LP ("Daly Waters"), and 183,655 securities held directly by Bryan S. Sheffield Spousal Lifetime Access Trust. Spraberry Interests, LLC ("Spraberry Interests") is the general partner of Sheffield Holdings. Bryan Sheffield is the manager of Spraberry Interests. As a result, each of Mr. Sheffield and Spraberry Interests may be deemed to share beneficial ownership of the shares held directly by Sheffield Holdings. Formentera Australia Fund I GP, LP ("Formentera Australia") is the general partner of Daly Waters. Formentera Investments LLC ("Formentera Investments") is the general partner of Formentera Australia. Bryan Sheffield is the managing member of Formentera Investments.
- F3(Continued from footnote 2) As a result, each of Mr. Sheffield, Formentera Australia and Formentera Investments may be deemed to share beneficial ownership of the shares held directly by Daly Waters. Each Reporting Person disclaims beneficial ownership of the securities reported herein, except to the extent of its or his pecuniary interest therein, if any.