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Tamboran Resources (TBN) 10K Form and Latest SEC Filings 2026

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Latest Tamboran Resources SEC Filings & Recent Activity

Tamboran Resources (NYSE:TBN) has submitted 155+ documents to the U.S. Securities and Exchange Commission (SEC) since 2024. For investors, these filings are the primary source of verified financial data — covering everything from annual revenue and debt levels in the 10-K, to material business events in 8-K current reports, to insider buying and selling activity in Form 4 disclosures. The most recent filing was a Form 8-K submitted on May 4, 2026.

Form 4
Tamboran Resources Corp Reports Ownership Change on Apr. 16, 2026

Form 4 filings disclose changes in stock ownership by company insiders, including purchases, sales, grants, and option exercises.

View insider ownership

8-K
Tamboran Resources Files Current Report on May. 4, 2026

An 8-K is filed when a material corporate event occurs, such as an acquisition, leadership change, or financial update.

View filing

10-K
Tamboran Resources Files Annual Report on Sep. 25, 2025

The 10-K contains Tamboran Resources's audited financial statements, revenue, earnings, and risk factors for the prior fiscal year.

View earnings history

Tamboran Resources SEC Filing History

Browse Tamboran Resources' complete SEC filing history using the filters below. Filter by form type - 10-K, 10-Q, 8-K, Form 4, and more - or set a custom date range to find a filing.

DateFilerForm TypeView
05/04/2026 3:05 PM
Tamboran Resources (1997652) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
04/16/2026 8:00 PM
Bellman Jeffrey Lance (2065717) Reporting
Tamboran Resources (1997652) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
04/16/2026 8:00 PM
Barrett Fredrick J (1309447) Reporting
Tamboran Resources (1997652) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
04/16/2026 8:00 PM
Dyer Eric Steven (2025666) Reporting
Tamboran Resources (1997652) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
04/16/2026 8:00 PM
SIEGEL DAVID N (1243456) Reporting
Tamboran Resources (1997652) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
04/16/2026 8:00 PM
Tamboran Resources (1997652) Issuer
Thibodeaux Faron James (2025661) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
04/16/2026 8:00 PM
PACE PHILLIP Z (1709285) Reporting
Tamboran Resources (1997652) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
04/16/2026 8:01 PM
Dalton Ryan (1606930) Reporting
Tamboran Resources (1997652) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
04/16/2026 8:01 PM
SHEFFIELD SCOTT D (1034316) Reporting
Tamboran Resources (1997652) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
04/16/2026 8:02 PM
STONEBURNER RICHARD K (1195112) Reporting
Tamboran Resources (1997652) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
04/16/2026 3:30 PM
Sheffield Bryan (1606914) Filed by
Tamboran Resources (1997652) Subject
Form SCHEDULE 13D/A
04/16/2026 3:30 PM
Daly Waters Energy, LP (2027837) Reporting
Formentera Australia Fund I GP, LP (2027922) Reporting
Formentera Investments LLC (2027820) Reporting
Sheffield Bryan (1606914) Reporting
Sheffield Holdings, LP (2027828) Reporting
Spraberry Interests, LLC (2027822) Reporting
Tamboran Resources (1997652) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
04/15/2026 6:46 PM
PACE PHILLIP Z (1709285) Reporting
Tamboran Resources (1997652) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
04/15/2026 4:09 PM
Tamboran Resources (1997652) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
04/14/2026 3:52 PM
Tamboran Resources (1997652) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
04/14/2026 5:15 AM
Tamboran Resources (1997652) Filer
Form 424B5
04/10/2026 3:30 PM
SHEFFIELD SCOTT D (1034316) Reporting
Tamboran Resources (1997652) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
04/09/2026 4:18 PM
Tamboran Resources (1997652) Filer
Form 424B5
04/09/2026 4:21 PM
Tamboran Resources (1997652) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
04/09/2026 6:34 AM
Tamboran Resources (1997652) Filer
Form 424B5
04/07/2026 4:17 PM
Tamboran Resources (1997652) Filer
Form 424B5
04/07/2026 3:54 PM
Tamboran Resources (1997652) Filer
Form 424B5
04/07/2026 3:10 PM
Tamboran Resources (1997652) Filer
Form S-3ASR
04/06/2026 3:08 PM
Tamboran Resources (1997652) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
04/03/2026 4:18 PM
Tamboran Resources (1997652) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
03/20/2026 3:46 PM
Tamboran Resources (1997652) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
02/17/2026 3:30 PM
STONEBURNER RICHARD K (1195112) Reporting
Tamboran Resources (1997652) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
02/13/2026 3:30 PM
Sheffield Bryan (1606914) Filed by
Tamboran Resources (1997652) Subject
Form SCHEDULE 13D/A
02/13/2026 7:30 AM
SIEGEL DAVID N (1243456) Reporting
Tamboran Resources (1997652) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
02/12/2026 11:15 PM
Tamboran Resources (1997652) Filer
Form EFFECT
02/12/2026 4:13 PM
HITE Hedge Asset Management LLC (1568939) Filed by
Tamboran Resources (1997652) Subject
Form SCHEDULE 13G
02/05/2026 3:15 PM
SIEGEL DAVID N (1243456) Reporting
Tamboran Resources (1997652) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
01/28/2026 4:12 PM
Tamboran Resources (1997652) Filer
Form DEFM14A
01/22/2026 3:52 PM
Tamboran Resources (1997652) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
01/21/2026 3:30 PM
Dalton Ryan (1606930) Reporting
Tamboran Resources (1997652) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
01/21/2026 3:30 PM
Daly Waters Energy, LP (2027837) Reporting
Formentera Australia Fund I GP, LP (2027922) Reporting
Formentera Investments LLC (2027820) Reporting
Sheffield Bryan (1606914) Reporting
Sheffield Holdings, LP (2027828) Reporting
Spraberry Interests, LLC (2027822) Reporting
Tamboran Resources (1997652) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
01/21/2026 3:30 PM
SIEGEL DAVID N (1243456) Reporting
Tamboran Resources (1997652) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
01/21/2026 3:30 PM
Tamboran Resources (1997652) Issuer
Thibodeaux Faron James (2025661) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
01/21/2026 3:30 PM
STONEBURNER RICHARD K (1195112) Reporting
Tamboran Resources (1997652) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
01/21/2026 3:30 PM
Bellman Jeffrey Lance (2065717) Reporting
Tamboran Resources (1997652) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
01/21/2026 3:30 PM
SHEFFIELD SCOTT D (1034316) Reporting
Tamboran Resources (1997652) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
01/21/2026 3:30 PM
Barrett Fredrick J (1309447) Reporting
Tamboran Resources (1997652) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
01/21/2026 3:30 PM
PACE PHILLIP Z (1709285) Reporting
Tamboran Resources (1997652) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
01/21/2026 3:30 PM
Dyer Eric Steven (2025666) Reporting
Tamboran Resources (1997652) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
01/20/2026 7:00 PM
Abbott Todd Christopher (2105904) Reporting
Tamboran Resources (1997652) Issuer
Form 3
Initial statement of beneficial ownership of securities  
01/20/2026 7:05 PM
Abbott Todd Christopher (2105904) Reporting
Tamboran Resources (1997652) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
01/15/2026 8:06 AM
Tamboran Resources (1997652) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
01/13/2026 7:06 PM
Tamboran Resources (1997652) Filer
Form PREM14A
01/13/2026 3:06 PM
Tamboran Resources (1997652) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
01/07/2026 3:05 PM
Helmerich & Payne, Inc. (46765) Filed by
Tamboran Resources (1997652) Subject
Form SCHEDULE 13G/A
12/08/2025 3:26 PM
Tamboran Resources (1997652) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
11/25/2025 8:00 PM
PACE PHILLIP Z (1709285) Reporting
Tamboran Resources (1997652) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
11/25/2025 3:26 PM
Tamboran Resources (1997652) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
11/17/2025 3:01 PM
Sheffield Bryan (1606914) Filed by
Tamboran Resources (1997652) Subject
Form SCHEDULE 13D/A
11/13/2025 4:36 PM
HITE Hedge Asset Management LLC (1568939) Filed by
Tamboran Resources (1997652) Subject
Form SCHEDULE 13G
11/12/2025 3:28 PM
Tamboran Resources (1997652) Filer
Form PRE 14A
10/28/2025 8:03 AM
Tamboran Resources (1997652) Filer
Form ARS
10/28/2025 5:05 AM
Tamboran Resources (1997652) Filer
Form DEF 14A
10/24/2025 3:45 PM
Tamboran Resources (1997652) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
10/24/2025 5:04 AM
Tamboran Resources (1997652) Filer
Form 424B5
10/22/2025 3:01 PM
Tamboran Resources (1997652) Filer
Form 424B5
10/17/2025 3:08 PM
Tamboran Resources (1997652) Filer
Form PRE 14A
10/03/2025 7:51 AM
Tamboran Resources (1997652) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
09/30/2025 8:07 AM
Tamboran Resources (1997652) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
09/25/2025 3:05 PM
Tamboran Resources (1997652) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
09/25/2025 3:09 PM
Tamboran Resources (1997652) Filer
Form 10-K
Annual report pursuant to Section 13 or 15(d)  
09/08/2025 7:33 PM
Tamboran Resources (1997652) Filer
Form 8-K/A
09/05/2025 7:40 PM
Tamboran Resources (1997652) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
08/13/2025 8:10 PM
HITE Hedge Asset Management LLC (1568939) Filed by
Tamboran Resources (1997652) Subject
Form SCHEDULE 13G
08/06/2025 3:30 PM
SHEFFIELD SCOTT D (1034316) Reporting
Tamboran Resources (1997652) Issuer
Form 3
Initial statement of beneficial ownership of securities  
08/06/2025 3:30 PM
PACE PHILLIP Z (1709285) Reporting
Tamboran Resources (1997652) Issuer
Form 3
Initial statement of beneficial ownership of securities  
07/29/2025 11:15 PM
Tamboran Resources (1997652) Filer
Form EFFECT
07/29/2025 5:22 AM
Sheffield Bryan (1606914) Filed by
Tamboran Resources (1997652) Subject
Form SCHEDULE 13D/A
07/23/2025 8:00 PM
Sheffield Bryan (1606914) Filed by
Tamboran Resources (1997652) Subject
Form SCHEDULE 13D/A
07/23/2025 8:00 PM
Daly Waters Energy, LP (2027837) Reporting
Formentera Australia Fund I GP, LP (2027922) Reporting
Formentera Investments LLC (2027820) Reporting
Sheffield Bryan (1606914) Reporting
Sheffield Holdings, LP (2027828) Reporting
Spraberry Interests, LLC (2027822) Reporting
Tamboran Resources (1997652) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
07/23/2025 7:30 PM
Tamboran Resources (1997652) Issuer
Thibodeaux Faron James (2025661) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
07/23/2025 7:30 PM
Dalton Ryan (1606930) Reporting
Tamboran Resources (1997652) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
07/23/2025 7:30 PM
Dyer Eric Steven (2025666) Reporting
Tamboran Resources (1997652) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
07/23/2025 7:30 PM
Riddle Joel Lynn (2025527) Reporting
Tamboran Resources (1997652) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
07/23/2025 7:30 PM
Barrett Fredrick J (1309447) Reporting
Tamboran Resources (1997652) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
07/23/2025 7:30 PM
Bellman Jeffrey Lance (2065717) Reporting
Tamboran Resources (1997652) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
07/23/2025 7:30 PM
STONEBURNER RICHARD K (1195112) Reporting
Tamboran Resources (1997652) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
07/23/2025 7:30 PM
SIEGEL DAVID N (1243456) Reporting
Tamboran Resources (1997652) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
07/17/2025 4:28 PM
Tamboran Resources (1997652) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
06/24/2025 7:25 PM
Tamboran Resources (1997652) Filer
Form DEF 14A
06/12/2025 7:50 PM
Tamboran Resources (1997652) Filer
Form PRE 14A
05/20/2025 8:53 PM
Bellman Jeffrey Lance (2065717) Reporting
Tamboran Resources (1997652) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
05/20/2025 8:40 PM
Dalton Ryan (1606930) Reporting
Tamboran Resources (1997652) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
05/20/2025 8:41 PM
SIEGEL DAVID N (1243456) Reporting
Tamboran Resources (1997652) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
05/20/2025 8:42 PM
Robb Andrew John (2025773) Reporting
Tamboran Resources (1997652) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
05/20/2025 8:44 PM
Elliott Patrick James Dymock (2025651) Reporting
Tamboran Resources (1997652) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
05/20/2025 8:44 PM
Barrett Fredrick J (1309447) Reporting
Tamboran Resources (1997652) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
05/20/2025 8:45 PM
STONEBURNER RICHARD K (1195112) Reporting
Tamboran Resources (1997652) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
05/15/2025 3:38 PM
Tamboran Resources (1997652) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
05/14/2025 6:39 PM
Sheffield Bryan (1606914) Filed by
Tamboran Resources (1997652) Subject
Form SCHEDULE 13D/A
05/14/2025 6:43 PM
Daly Waters Energy, LP (2027837) Reporting
Formentera Australia Fund I GP, LP (2027922) Reporting
Formentera Investments LLC (2027820) Reporting
Sheffield Bryan (1606914) Reporting
Sheffield Holdings, LP (2027828) Reporting
Spraberry Interests, LLC (2027822) Reporting
Tamboran Resources (1997652) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
(Data available from 1/1/2016 forward)

Tamboran Resources SEC Filings - Frequently Asked Questions

Tamboran Resources (TBN) has submitted 155+ filings to the SEC since 2024. You can browse the complete history or filter by form type using the tools above.

Tamboran Resources's fiscal year ends on June 30. The company typically files its 10-K annual report by the end of August, covering the prior fiscal year's financial results.

The most recent filing was a Form 8-K submitted on May 4, 2026. This was a current report on a material business event.

SEC Filing Types: 10-K, 10-Q, 8-K and More

SEC filings are legally required disclosures that public companies submit to the U.S. Securities and Exchange Commission. Unlike press releases or earnings call transcripts, these documents are filed under legal obligation — meaning the financial data they contain is audited, standardized, and subject to penalties if materially false. For investors, that makes SEC filings the most reliable primary source available for evaluating a company's true financial position.

Yes. All SEC filings are publicly available through the SEC's EDGAR database and on financial research platforms like MarketBeat. Companies are required by law to make these disclosures accessible to all investors — meaning retail investors have access to the same source documents as institutional analysts.

A 10-K is an annual report containing audited financial statements and a full review of the company's business — it is the most comprehensive filing a company makes each year. A 10-Q is a shorter, unaudited quarterly update filed three times per year between annual reports. Investors typically use the 10-K for deep fundamental analysis and the 10-Q to track whether the company is on pace with its guidance mid-year.

The most important filing for fundamental investors. Filed once per year, the 10-K contains audited financial statements, revenue and earnings trends, debt obligations, risk factors, and management's own assessment of the business. Reading the risk factors section and comparing year-over-year financials can reveal issues that don't show up in analyst summaries.

An unaudited financial update filed three times per year (the 10-K covers Q4). Investors use 10-Qs to track whether guidance is on pace, monitor changes in cash flow or inventory, and catch any mid-year shifts in business conditions before they become headline news.

Filed within four business days of a material event — earnings releases, merger announcements, executive departures, or major asset sales. Because 8-Ks are filed before media coverage catches up, they are often the fastest way to get unfiltered information directly from the company on market-moving events.

Filed within two business days whenever an executive or director buys or sells company stock. Insider purchases — especially large or clustered buys — are often interpreted as a signal of management confidence. Insider selling is more ambiguous but worth monitoring for patterns, particularly around lock-up expirations or ahead of major announcements.


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This page (NYSE:TBN) was last updated on 5/7/2026 by MarketBeat.com Staff.
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