Grant4

Tamboran Resources Corp

Total Value

Filing Date

Jul 29, 2026

1 transaction

Trade Summary

On May 28, 2026, Sheffield Bryan, Insider, reported $0 of Tamboran Resources Corp (TBN) across 1 transaction. The filing covers Common Stock and reflects balanced net activity of $0. Insider transactions are sourced from SEC Form 4 disclosures and should be reviewed alongside company fundamentals and the insider's broader trading history.

Insider Information

Name: Sheffield Bryan
Role: Insider
Location: AUSTIN, TX

Filing Details

Filing Date: Jul 29, 2026
Transaction Date: May 28, 2026
Accession Number: 0001193125-26-324324
Form Type: 4

Non-Derivative Transactions

Date	Security	Shares	Price	Type	Value
May 28, 2026	Common Stock	339,500	—	Grant/Award	—

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Footnotes

(F1)The 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.
(F2)Represents 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.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Sheffield Bryan

(Last)

(First)

(Middle)

300 COLORADO STREET, SUITE 1900

(Street)

AUSTIN

78701

(City)

(State)

(Zip)

2. Issuer Name and Ticker or Trading Symbol
Tamboran Resources Corp [ TBN ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director	X	10% Owner
	Officer (give title below)		Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
05/28/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

	Form filed by One Reporting Person
X	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock	05/28/2026		A⁽¹⁾		339,500⁽¹⁾	A	⁽¹⁾	3,646,756	I	See footnote⁽²⁾⁽³⁾

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)

1. Name and Address of Reporting Person^*

Sheffield Bryan

(Last)

(First)

(Middle)

300 COLORADO STREET, SUITE 1900

(Street)

AUSTIN

78701

(City)

(State)

(Zip)

Relationship of Reporting Person(s) to Issuer

X	Director	X	10% Owner
	Officer (give title below)		Other (specify below)

1. Name and Address of Reporting Person^*

Sheffield Holdings, LP

(Last)

(First)

(Middle)

300 COLORADO STREET, SUITE 1900

(Street)

AUSTIN

78701

(City)

(State)

(Zip)

Relationship of Reporting Person(s) to Issuer

Director	X	10% Owner
Officer (give title below)		Other (specify below)

1. Name and Address of Reporting Person^*

Spraberry Interests, LLC

(Last)

(First)

(Middle)

300 COLORADO STREET, SUITE 1900

(Street)

AUSTIN

78701

(City)

(State)

(Zip)

Relationship of Reporting Person(s) to Issuer

Director	X	10% Owner
Officer (give title below)		Other (specify below)

1. Name and Address of Reporting Person^*

Daly Waters Energy, LP

(Last)

(First)

(Middle)

300 COLORADO STREET, SUITE 1900

(Street)

AUSTIN

78701

(City)

(State)

(Zip)

Relationship of Reporting Person(s) to Issuer

Director	X	10% Owner
Officer (give title below)		Other (specify below)

1. Name and Address of Reporting Person^*

Formentera Australia Fund I GP, LP

(Last)

(First)

(Middle)

300 COLORADO STREET, SUITE 1900

(Street)

AUSTIN

78701

(City)

(State)

(Zip)

Relationship of Reporting Person(s) to Issuer

Director	X	10% Owner
Officer (give title below)		Other (specify below)

1. Name and Address of Reporting Person^*

Formentera Investments LLC

(Last)

(First)

(Middle)

300 COLORADO STREET, SUITE 1900

(Street)

AUSTIN

78701

(City)

(State)

(Zip)

Relationship of Reporting Person(s) to Issuer

Director	X	10% Owner
Officer (give title below)		Other (specify below)

Explanation of Responses:

1. The 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.

2. Represents 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.

3. (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.

	/s/ Bryan Sheffield	07/29/2026
	Sheffield Holdings, LP, By: Spraberry Interests, LLC, its general partner, By: /s/ Bryan Sheffield, President	07/29/2026
	Spraberry Interests, LLC, By: /s/ Bryan Sheffield, Manager	07/29/2026
	Daly Waters Energy, LP, By: Formentera Australia Fund I GP, LP, its general partner, By: Formentera Investments LLC, its general partner, By: /s/ Bryan Sheffield, Managing Member	07/29/2026
	Formentera Australia Fund I GP, LP, its general partner, By: Formentera Investments LLC, its general partner, By: /s/ Bryan Sheffield, Managing Member	07/29/2026
	Formentera Investments LLC, By: /s/ Bryan Sheffield, Managing Member	07/29/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

Form 4 as rendered by the SEC from accession 0001193125-26-324324.

Tamboran Resources Corp

Trade Summary

Company Information

Insider Information

Filing Details

Non-Derivative Transactions

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Footnotes

SEC Form 4

SEC Filing

SEC Form 4