IsoEnergy Ltd. (NYSE American: ISOU) has completed its summer drilling program at the Larocque East project in northern Saskatchewan, Canada, reporting the highest radioactivity readings recorded to date along the Hurricane South Trend, according to a company press release.

The summer program totaled 10,159 meters across 26 holes, expanding from an originally planned 8,000-meter, 20-hole program. Combined with winter drilling, the 2026 year-to-date total reached 16,963 meters across 43 holes. The program was temporarily interrupted in June due to a nearby wildfire.

Of the 26 summer holes, 18 returned intervals at or above a threshold of 350 counts per second (cps) over 0.5 meters, and 13 holes returned 1,000 cps or greater. Three holes exceeded 35,000 cps, which the company says represents the strongest radioactivity drilled to date on the South Trend.

Key results included drill hole LE26-273, which intersected 14,135 cps over 3.0 meters, including 36,292 cps over 1.0 meter, drilled 11 meters west of a previously reported winter hole. Drill hole LE26-254 intersected 10,110 cps over 2.0 meters, including 35,900 cps over 0.5 meters, located 510 meters east of the existing Hurricane deposit footprint. Drill hole LE26-250, reported previously in July, intersected 11,075 cps over 3.5 meters, including 43,160 cps over 0.5 meters.

Elevated radioactivity was intersected over a strike length of 600 meters along the South Trend. All summer program samples have been submitted to SRC Geoanalytical Laboratories, with uranium geochemistry results pending.

The Hurricane deposit currently holds a mineral resource of 48.6 million pounds U3O8 at 34.5% U3O8 Indicated, and 2.7 million pounds U3O8 at 2.2% U3O8 Inferred. The deposit sits approximately 325 meters deep and is located roughly 40 kilometers northwest of the McClean Lake mill.

Dan Brisbin, Vice President Exploration, said geochemical results and geological observations from drill core "will shape how we define targets for 2027."