Form: 10-K

Annual report [Section 13 and 15(d), not S-K Item 405]

September 25, 2026

Exhibit 21

SUBSIDIARIES OF TAMBORAN RESOURCES CORPORATION

NameJurisdiction of Organization
Tamboran Resources USA, LLCDelaware
Tamboran Equipment, LLCDelaware
Tamboran Resources Investments CorpDelaware
Tamboran Resources Investments HoldcoDelaware
Falcon Oil & Gas Ireland LimitedIreland
Falcon Oil & Gas Holdings Ireland LtdIreland
TXM Oil & Gas Exploration Kft.Hungary
Falcon E&P South Africa (Pty) LtdSouth Africa
Tamboran Resources Pty LimitedAustralia
Tamboran (Carbon Solutions) Pty LimitedAustralia
Tamboran (Orion) Pty LimitedAustralia
Tamboran (IP) Pty LimitedAustralia
Northern Territory LNG Pty LimitedAustralia
Tamboran (EP318) Pty LimitedAustralia
Tamboran (McArthur) Pty LimitedAustralia
Sweetpea Petroleum Pty LimitedAustralia
Tamboran Services Pty LimitedAustralia
Tamboran Infrastructure Pty LimitedAustralia
Tamboran (Equipment) Pty LimitedAustralia
Tamboran (Beetaloo) Pty LimitedAustralia
Tamboran (West) Pty LimitedAustralia
Tamboran (B1) Pty Limited*Australia
Tamboran B2 Pty Limited*Australia
Tamboran SPCF Pty LimitedAustralia
Sturt Plateau Compression Facility Holding Pty Limited*Australia
Sturt Plateau Compression Facility Holding Trust*Australia
Sturt Plateau Compression Facility Mid Pty Limited*Australia
Sturt Plateau Compression Facility Mid Trust*Australia
Sturt Plateau Compression Facility Sub Pty Limited*Australia
Sturt Plateau Compression Facility Sub Trust*Australia
SPCF Financing Pty Limited*Australia
Tamboran LNG Pty LimitedAustralia
Tamboran Investments Pty LimitedAustralia
Tamboran DC Pty LimitedAustralia
Hydro X Gen Pty LimitedAustralia


Exhibit 21

Tamboran Geothermal Pty LimitedAustralia
Falcon Oil & Gas Australia LimitedAustralia
*Tamboran Resources Corporation owns an indirect 50% interest in each such entity.