What Did Alligator Energy (ASX:AGE) Report From Its Latest Samphire Drilling South of Blackbush?

Sonal Goyal

21 October 2026 03:52 PM AEDT

What Did Alligator Energy (ASX:AGE) Report From Its Latest Samphire Drilling South of Blackbush?

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Key highlights

Drilling extended the interpreted Blackbush mineralised trend by about 1 km, according to Alligator’s 7 October 2026 release.
Hole BBRM26-590 returned 5.2 m at 0.15% eU3O8 and BBRM26-592 returned 6.6 m at 0.12% eU3O8, both above a 250 ppm cut-off.
More than 9,000 m across 91 holes has been drilled since the 28 July 2026 update, with a resource update planned for Q1/Q2 2027.

Alligator Energy Ltd (ASX:AGE) was trading at $0.033 on 21 October 2026, up 4.84% in the session. The S&P/ASX 200 Energy [XEJ] index was at 11,167.20, higher by 0.014% (1.60 points), and the S&P/ASX 200 [XJO] was at 8,806.90, lower by 0.11% (10.00 points), at 2:32 pm GMT+11. Brent Crude gained 0.60% to US$109.48, with persistent Middle East tensions involving Iran, Saudi Arabia and the Houthis in Yemen continuing, and a reported draw in US oil inventories added to the picture of tightening supply. Alligator Energy is an Australian uranium development and exploration company whose main asset is the Samphire Uranium Project in South Australia.

What Alligator Energy does

Alligator Energy Limited is an uranium project development and exploration company based in Unley, South Australia. Its principal asset is the Samphire Uranium Project near Whyalla, which includes the Blackbush and Plumbush deposits and which the company lists at 30 Mlb of U3O8. It also holds the Big Lake project in the Cooper Basin. Samphire mineralisation is sediment-hosted roll-front style in a palaeochannel, and the company is assessing it for in-situ recovery mining.

Blackbush southern extension results

In a release dated 7 October 2026, Alligator reported further drilling results from the southern extension of the Blackbush deposit. Mineralisation above a 250 ppm eU3O8 cut-off was intersected about 1 km south of the previously southernmost known mineralised hole, extending the interpreted trend, with mineralisation remaining open at both ends of the newly tested section.

Two holes about 100 m apart returned: BBRM26-590, 5.2 m at 0.15% (1,498 ppm) eU3O8 from 64.7 m, and BBRM26-592, 6.6 m at 0.12% (1,245 ppm) eU3O8 from 62.7 m. Other intercepts in the extension include BBRM26-587 with 2.2 m at 0.23% eU3O8 and BBRM26-580 with 3.2 m at 0.13% eU3O8. The company noted that follow-up drilling is needed to determine continuity between intersections and the limits of mineralisation.

Plumbush infill drilling

At Plumbush, about 5 km south of Blackbush, infill drilling is intended to reduce historical spacing from about 200 m by 400 m to 100 m by 100 m, with the aim of converting Inferred resources to the Indicated category. Alligator reported results consistent with the recent Inferred Mineral Resource Estimate, which was based on historic data. The best intercept was BBRM26-534 with 2.4 m at 0.44% (4,370 ppm) eU3O8 from 64.6 m, and BBRM26-565 returned 6.5 m at 0.11% eU3O8.

Drilling program and next steps

The Samphire Growth Strategy is a program of about 300 holes that is just over one-third complete. Since the previous update, 38 rotary mud holes were drilled in the Blackbush extension and corridor, 50 rotary mud infill holes at Plumbush and three sonic core holes. Drilling continues until late Q4 2026 with two rigs, focused on integrating data for a planned Samphire Mineral Resource update in Q1/Q2 2027, and advancing the feasibility study and associated mine planning and approvals work.

Sector context

Uranium developers progress from drilling to resource updates, studies and approvals, and uranium price levels influence market interest. During the session, the S&P/ASX 200 Energy index was at 11,167.20 and Brent crude was at US$109.48 per barrel amid Middle East tensions. The release notes that in-situ recovery projects depend on how large an area of the channel is mineralised above cut-off.

Risks and uncertainties

The reported grades are equivalent uranium (eU3O8) derived from downhole Gamma logging and are not chemical assays; sonic core assays are still to be reported. Widths are downhole widths, no independent verification has been performed on these holes, and continuity between intersections has not yet been established. Many of the holes drilled returned no significant intercepts. The company is at the exploration and feasibility stage, and funding, approvals, tenure, uranium prices and technical outcomes will affect progress.

Catalysts to watch

Items referenced include continued drilling until late Q4 2026, sonic core assay results, the Samphire Mineral Resource update in Q1/Q2 2027, completion of the feasibility study and progress on mine planning and approvals.

Closing perspective

Alligator’s 7 October 2026 announcement reported a 1 km southern step-out at Blackbush and consistent infill results at Plumbush. The next reportable milestones are further drilling updates and the 2027 resource update.

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