DevEx Resources Limited provided an exploration update on its 100%-owned Nabarlek Uranium Project in the Northern Territory, describing the first phase of a sequenced multi-year uranium discovery programme aimed at advancing a target-rich pipeline using an unconformity-style uranium exploration model. During the first month of the 2026 dry season campaign, DevEx drilled three priority prospects and advanced several others through mapping, surface geochemistry and a new airborne hyperspectral survey. At KP, drilling passed through about 100 metres of McArthur Basin sandstone into strongly altered basement rocks comparable to those near the Nabarlek deposit, and diamond hole NBDD26003 intersected a chlorite-hematite altered fault breccia above the unconformity, prompting follow-up drilling to test the projected structure beneath the unconformity. At Big Radon, first-pass drilling confirmed a roughly 20-metre-wide north-trending fault zone and intersected shallow uranium mineralisation of 1.6m at 680ppm eU3O8 from 26m including 0.4m at 1,041ppm eU3O8, with assays pending. At Sandfire, RC drilling commenced to test the projected extension of the Angularli Fault Zone along strike from Deep Yellow’s Angularli deposit. Around Caramal, relogging of historical core identified a possible down-faulted northern continuation of the host breccia and dolerite associated with the Caramal uranium deposit, and DevEx has lodged drilling applications for this and other targets while also using mapping and ASTER ferric-oxide reprocessing to trace hematite alteration regionally. The company also reported progress on priority tenement applications at Mustang and Junction, supported by Traditional Owner consent for anthropological surveys, and said it remains well funded to continue the programme and release further drilling, assay and hyperspectral results progressively.
Key Points
DevEx announced a 27 August 2026 exploration update for its 100%-owned Nabarlek Uranium Project in the Northern Territory.
The 2026 dry season campaign is the first phase of a sequenced multi-year exploration pipeline focused on unconformity-style uranium targets.
At KP, drilling intersected strongly altered basement rocks beneath about 100 metres of sandstone cover, with alteration similar to rocks near the Nabarlek deposit.
Diamond hole NBDD26003 at KP intersected a chlorite-hematite altered fault breccia above the unconformity, and follow-up holes are targeting the structure below the unconformity.
At Big Radon, drilling confirmed an approximately 20-metre-wide north-trending fault zone on the western side of the anomaly.
Big Radon returned 1.6m at 680ppm eU3O8 from 26m including 0.4m at 1,041ppm eU3O8 from downhole gamma readings, with laboratory assays pending.
At Sandfire, RC drilling commenced on the projected extension of the Angularli Fault Zone along strike from Deep Yellow’s Angularli deposit.
Relogging at Caramal identified what may be a down-faulted northern continuation of the deposit’s host breccia and dolerite, creating a new drill target.
DevEx lodged drilling applications with the NT regulator in June for Caramal and other targets and is awaiting approvals.
Geological mapping and ASTER dataset reprocessing at Caramal identified ferric-oxide rich corridors that may reflect hematite alteration linked to uranium systems.
A detailed airborne hyperspectral survey was flown across granted tenements in August to detect alteration signatures associated with buried unconformity-type uranium deposits.
Traditional Owners agreed to progress priority tenement applications at Mustang and Junction, with anthropological surveys scheduled for September.
DevEx said it is well funded to continue drilling, target generation and regional exploration across its district-scale Nabarlek position.
IMPORTANT NOTE: This information is autogenerated and has not been reviewed for accuracy or completeness. You should refer to the full announcement here for further information.