Bryan Sheffield - 14 Apr 2026 SCHEDULE 13D/A Report for Tamboran Resources Corporation Common Stock, par value $0.001 per share (TBN)

Filing Manager: Bryan Sheffield
Reporting Manager: Bryan Sheffield
Security: Tamboran Resources Corporation Common Stock, par value $0.001 per share
Symbol: TBN
Shares outstanding: 27,792,067 shares
Disclosed Ownership: 3,307,256 shares
Ownership: 12%
Form type: SCHEDULE 13D/A
Filing time: 16 Apr 2026, 16:30:02 UTC
Date of event: 14 Apr 2026
Previous filing: 13 Feb 2026
SEC: View on sec.gov

Quoteable Key Fact

"Bryan Sheffield disclosed 12% ownership in Tamboran Resources Corporation Common Stock, par value $0.001 per share (TBN) on 14 Apr 2026."

Quick Takeaways

Bryan Sheffield filed SCHEDULE 13D/A for Tamboran Resources Corporation Common Stock, par value $0.001 per share (TBN).
Disclosed ownership: 12%.
Date of event: 14 Apr 2026.

This page explains what this Schedule 13D/13G filing tells you before manager-level rows.
You can verify ownership claims directly against the original SEC filing.

Backed by Schedule 13D/13G

Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.

Name	Ownership	Shares Owned	sole voting power	shared voting power	Signature	Title	CIK
Bryan Sheffield	12%	3,307,256	183,655	3,123,601	/s/ Bryan Sheffield	Bryan Sheffield	0001606914
Sheffield Holdings, LP	8.1%	2,247,404	0	2,247,404	/s/ Bryan Sheffield	Bryan Sheffield / Manager	0002027828
Spraberry Interests, LLC	8.1%	2,247,404	0	2,247,404	/s/ Bryan Sheffield	Bryan Sheffield / Manager	0002027822
Daly Waters Energy, LP	3.1%	876,197	0	876,197	/s/ Bryan Sheffield	Bryan Sheffield / Managing Member	0002027837
Formentera Australia Fund I GP, LP	3.1%	876,197	0	876,197	/s/ Bryan Sheffield	Bryan Sheffield / Managing Member	0002027922
Formentera Investments LLC	3.1%	876,197	0	876,197	/s/ Bryan Sheffield	Bryan Sheffield / Managing Member	0002027820