Silver Drill Results Ranked Highest in September 2026
Mining operators should track rising resource estimates as firms accelerate exploration drilling.
Updated on Oct. 6, 2026 in Economic Indicators
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Contango Silver & Gold produced the highest-ranked global silver drill assay between August 17 and September 15, 2026. This period also saw significant resource upgrades for regional silver assets as companies intensified exploration efforts.
Why it matters
Rising indicated tonnage and metal content figures reflect ongoing efforts by miners to prove resource viability amid expanded exploration programs. For operators, these assay results provide key signals on site potential and mineral density across international mining projects.
Contango's Kitsault Valley resource update showed an 84% increase in indicated tonnage to 7.66 million tonnes and a 93% rise in metal content to 89.6 million silver-equivalent ounces. These figures follow the company's expansion of its 2026 exploration program to 50,000 metres.
The players
Contango Silver & Gold
A precious metals mining company focused on exploration and resource development in British Columbia.
Sun Silver
A mineral exploration firm currently advancing silver and antimony projects in Nevada.
Minaurum Silver
An exploration company engaged in silver asset development, specifically the Alamos project in Mexico.
The details
Rankings are determined by multiplying a drill hole's grade by its intersection width, a standard industry metric for assessing exploration success. Contango's hole DV26-515 cut 66.4 metres at 161 grams per tonne, while peers used similar methods to verify mineralization at projects in Nevada and Mexico. Sun Silver further utilized twin-hole drilling at its Maverick site to corroborate data from older 1990 exploration logs.
Timeline
August 17 to September 15, 2026: Period for top global drill rankings.
August 19, 2026: Sun Silver announced Maverick hole MR25-235 results.
August 25, 2026: Minaurum Silver reported Alamos hole AL26-230 data.
September 15, 2026: Contango announced top-ranked hole DV26-515 results.
September 22, 2026: Kitsault Valley resource update was released.
Market Landscape
This cluster of high-grade assay reports follows an industry-wide trend of intensified site evaluation and resource reporting during 2026. These results extend the pattern of aggressive exploration seen as companies work to update resource estimates for long-held mining land packages.
Operators should monitor these assay rankings as indicators of shifting supply potential and project valuation in the silver market. Keep an eye on forthcoming prefeasibility reports to gauge the actual operational viability of these expanding mineral assets.
The takeaway
Drill assay rankings provide a high-level signal for mineral density that can precede major resource upgrades for mining firms. Operators should track company filings for these assay values as a precursor to project feasibility study announcements.
What happens next
Sun Silver is scheduled to release a prefeasibility study in 2027, while Minaurum Silver plans to publish an updated resource for the Alamos project by the end of 2026.
Further reading
For broader trends in resource valuation, visit the Economic Indicators section.
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