Junior / Minor · Developer · USA
Last updated 21 June 2026
Data compiled from public filings — information only, not investment advice. AI‑assisted; see methodology.
Operating · 2 projects
Sunday Mine Complex
District
Project information
As at 7 July 2015
Description
As at 7 July 2015
100%-owned producing underground uranium-vanadium complex in San Miguel County, Colorado (Uravan Mineral Belt). Comprises the Sunday, Carnation, St. Jude, West Sunday and Topaz mines. Originally developed by Union Carbide for approximately US$50M in the 1970s, acquired by Western in 2014 from Energy Fuels Holding Corp. and restarted underground mining in 2019 (paused for COVID-19, re-started in 2021). High-grade ore is being mined and stockpiled. NI 43-101 Technical Report dated July 7, 2015 by A. Adkins. The Topaz Mine is currently permitted and scheduled for re-permitting. Vanadium grades estimated at the historic White Mesa mill shipment average V2O5:U3O8 ratio of 6:1. In September 2025 Western delivered approximately 1,600 tons of mined material from the SMC to the White Mesa Mill under a uranium ore purchase agreement with PRM (deliveries up to 25,000 short tons).
Mining metrics
As at 31 December 2025
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Rimrock Joint Venture (J-Bird + Prince Albert Mines)
District · Ownership 50%
Project information
As at 1 November 2023
Description
As at 1 November 2023
50/50 Joint Venture with Rimrock Exploration and Development Inc. comprising two production-ready, fully permitted and previously producing underground uranium-vanadium mines: J-Bird Mine (7.5 permitted acres near Paradox, Colorado) and Prince Albert Mine (8.3 permitted acres near Uravan, Colorado). Mining operations resumed November 2023.
Mining metrics
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Development · 4 projects
Sage Mine
Asset · Pre-feasibility
Project information
As at 16 December 2011
Description
As at 16 December 2011
100%-owned permitted underground uranium-vanadium mine located on the Sage Plain Project (San Miguel County, Colorado/Utah). Currently in pre-production stage advancing additional feedstock for the planned Mustang Mill. NI 43-101 Technical Report dated December 16, 2011 by Douglas Peters. Project not currently considered material; historical resource estimates are based on a NI 43-101 report on Colorado Plateau Partners LLC (EFRC + Lyn-Royal JV) Sage Plain Project — not treated as current mineral resources or reserves.
Mining metrics
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San Rafael Uranium Project
Asset · Pre-feasibility
Project information
As at 19 November 2014
Description
As at 19 November 2014
100%-owned development-stage uranium project situated on approximately 3,540 acres in Emery County, Utah, within the San Rafael Uranium District and Tidwell Mineral Belt. Includes the Deep Gold Uranium Deposit and the Down Yonder Uranium Deposit. More than 3,000 historic drill holes (last drill program 2007 to 2009). Permitting is underway for second production center, with the option for conventional underground mining or potential In-Situ Recovery (ISR). NI 43-101 Technical Report dated November 19, 2014 prepared by O. Jay Gatten (Utah Professional Geologist) for Western (then known as Homeland Uranium Inc.). Vanadium grades estimated at the district historic production average V2O5:U3O8 ratio of 1.35:1 where assays not available.
Mining metrics
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Van 4 Mine
Asset · Pre-feasibility
Project information
Description
100%-owned uranium-vanadium mine currently in planning stage for a new entrance to access mineralized material along with the historic shaft and workings. Part of the Company's 2026 plan to provide additional feedstock for the Mustang Mill.
Mining metrics
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Hansen/Taylor Ranch Project
District · Pre-feasibility
Project information
As at 23 April 2014
Description
As at 23 April 2014
100%-owned Tallahassee Creek Uranium District development project in Fremont County, Colorado, comprising approximately 13,000 total acres — among the largest historic U.S. uranium resource holdings; Western controls the majority. Sandstone-hosted deposits at shallow depth with thick high-grade ore body in the Boyer, North Hansen, Picnic Tree and High Park areas. Last JORC Code Mineral Resource Estimate update April 23, 2014 by Ben Vallerine and Rex Bryan for Tetra Tech (originally for Black Range Minerals). Mineral resources estimated at 0.025% eU3O8 cut-off using multi-pass whole-block kriging. Potential mining methods: open-pit, ISR, borehole and underground conventional. Last development activity: five monitor wells installed and baseline water sampling program 2013-2015. Historical estimates not treated as current mineral resources by Western.
Mining metrics
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Exploration · 1 project
Uranium Ridge Project
Asset · Pre-feasibility
Project information
As at 1 October 2025
Description
As at 1 October 2025
100%-owned strategic satellite uranium-vanadium project located in Montrose County, Colorado (Uravan Mineral Belt), acquired in October 2025. Combines historically drilled Baboon Basin and Sawtooth claims with newly acquired adjacent lode claims. High-grade uranium and vanadium hosted in the Salt Wash Member of the Morrison Formation. Located approximately 10 miles from the planned Mustang Mill, significantly reducing ore transportation costs. Serves as a key satellite deposit supplying long-term feedstock for Western's milling facilities. Western is assessing approaches to validate the independent ore reserve calculation from drilling by Nuclear Dynamics Inc., the original holder.
Mining metrics
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Processing facilities · 2 projects
Mustang Mineral Processing Plant
Asset · Pre-feasibility
Project information
Description
Wholly-owned planned regional uranium-vanadium processing facility located on a ~900-acre former Pinon Ridge Mill project site in Montrose County, Colorado. Acquired in October 2024 via the purchase of Pinon Ridge Corporation. Proposed licensed capacity: 1,000 tons of ore/day equivalent to 3 million lbs U3O8 per year. Designed as a Uravan Mineral Belt regional processing plant serving third party producers in Colorado and Utah. Mustang Mill License Application targeted for CDPHE submission in Q3 2026.
Processing facilities
As at 1 October 2024
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Maverick Kinetic Separation Site
Asset · Pre-feasibility
Project information
Description
100%-owned regional 'upgrading' kinetic-separation facility located in Green River Industrial Park, Emery County, Utah. Designed to concentrate ore by 5x-10x using proprietary Kinetic Separation technology to enable shipment of high-grade concentrate to the Mustang Mill (Colorado) rather than raw bulk feedstock. Land package acquired in 2023, environmental baseline data collection started in 2024. Targets up to ~90% reduction in transport costs and ~90% less material to process at the final milling stage, making lower-grade regional deposits economically viable. Produces an ore comprised of 85-95% of the uranium/vanadium in approximately 10-20% of the mass of pre-separation material.
Processing facilities
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Royalty Operating · 1 project
Bullen Oil & Gas Royalty
Asset · Royalty
Project information
As at 31 December 2025
Description
As at 31 December 2025
Royalty interest in a 3,200-acre pooled unit in the DJ-Basin (Weld County, Colorado), comprising a 160-acre Bullen Oil & Gas Property. Operated by Bison Oil & Gas (acquired from Mallard Exploration in 2023). As of 2023, two well pads and 16 horizontal wells in production paying royalties for the full calendar year. Maximum permitted capacity: 24 horizontal wells.
Royalty interests
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Assumptions
- The projects listed here reflect the information captured in this workspace and are not necessarily a complete picture of the company's portfolio. For authoritative figures, refer to the company's official filings.
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How to read this tab
- The tables below list unit codes most often used in the Energy Metals sector for this company. MetalPilot stores contained metal or product in the codes below; grade and tonnage use separate fields. In side-by-side comparison views (stock page Portfolio tab, watchlist By sector), heterogeneous source units are converted to each commodity's preferred display unit (for example Moz Au, kt Cu, MMbbl oil) before summing; the same canonical codes appear in project data.
What the Portfolio tab shows
- The Portfolio tab presents a project-level view of the company's reported assets, built from publicly disclosed information (technical reports, annual filings, MD&A, investor presentations, MRMR / R&R statements, NI 43-101 / NI 51-101 / SEC S-K 1300 / SEC S-K 1200 / JORC / SAMREC / PERC / PRMS / COGEH filings, and similar primary sources).
- Figures are grouped by project type (mining, oil & gas, royalty, stream, processing facility, development, portfolio aggregate) and are shown alongside the headline reserve base, headline production, headline grade / quality, cost benchmarks, estimated lifetime, commercial terms (for royalties / streams), operational capacity (for processing) and a single-figure rating where the underlying data supports one.
- Each data table on the Portfolio tab is followed by ONE Assumptions footnote describing the modelling choices for that table; KPI stat-card assumptions appear in the bottom block instead. All legal and section disclaimers are merged into a single disclaimer list at the bottom of the Portfolio tab.
Concepts in your sector — Energy metals (uranium)
- U₃O₈ vs U metal. Reserves are usually in lb or t U₃O₈; multiply by ~0.848 for U metal. Fuel-cycle contracts may quote kgU as UF₆ (schema: kgu).
- % U₃O₈ vs ppm U₃O₈. Athabasca grades can exceed 10%; ISR deposits often 0.05–0.5%. The schema preserves the source unit.
- ISR vs conventional. ISR tonnage is often m³ leach solution, not rock mass — cost structure differs from underground/open-pit.
Portfolio tab — table guide
- Portfolio KPIs — company-level headline numbers aggregated from the featured projects (project counts, attributable annual production by commodity, attributable resource base by commodity, last filing date, operator share). USD value lines multiply attributable volumes by the resolved snapshot price.
- Portfolio snapshot — one-screen summary of the portfolio: counts by type and status, country mix, reporting standards used, operator share, primary commodity, attributable annual production summary and attributable resource base summary.
- Mining — one row per mining project, with columns for project name, location, status, primary commodities, production (with rating), reserves & resources (with rating), grade (with rating), costs and estimated lifetime. Multi-commodity projects emit one summary row per commodity.
- Royalty — one row per royalty interest held by the company. Columns cover the underlying project, operator, commodity, commercial terms (rate, type, cap, area-of-interest), attributable production, attributable reserves and estimated lifetime.
- Stream — one row per metal stream held by the company. Each row shows the underlying project, the streamed commodity, the headline stream percentage, the ongoing per-ounce / per-tonne payment, and attributable production / reserves.
- Processing facilities — one row per midstream / processing facility (pipeline, fractionator, LNG train, storage cavern, refinery, smelter, mill, heap-leach pad, CPP, etc.). Columns include nameplate capacity, contracted capacity, feedstock commodities and operational footprint.
- Development — projects in development status or in a pre-production lifecycle phase. The production column is re-labelled 'Targeted production (rating)' to highlight that the figures are plans, not actuals.
- Portfolio Aggregate — a single company-level row used when the company itself publishes a portfolio rollup (e.g. company-wide 2P barrels across all properties).
- Reserves & resources — detail — a leaf-category pivot showing every reserve and resource category disclosed across the projects.
- NPV (grouped) — all NPV rows captured from the filings, grouped by commodity, resource category, development status and pricing case. Each NPV figure is shown with its discount rate, basis (before-tax / after-tax), currency and value scale.
Ownership / Working interest
- Ownership percentage means the company's working-interest share of the asset: its slice of the project before royalties and before government take. It is shown on a 0–100 scale.
- Mines, oil and gas fields, and processing facilities — this is how much of the asset belongs to the company under that working-interest idea. One hundred percent is fully owned; a lower number usually means partners share the rest.
- Royalties and streaming agreements — the percentage is often not the story; what matters economically is usually the royalty or stream rate, shown elsewhere alongside these figures.
- Oil and gas — read this as gross working interest only. Do not treat it as net production or net wells after royalties; when filings distinguish gross from net, that shows up in how the resource numbers themselves are labelled.
- Below 100% — the short summary for each project names other owners and their stakes when the source says who they are.
- NRI vs WI (O&G). Working interest (WI) is the obligation to pay a share of costs; net revenue interest (NRI) is the share of revenue after royalties and overriding-royalty interests. A 100% WI well rarely produces 100% NRI; typical onshore U.S. NRI is 75–87.5% of WI depending on the lease royalty.
- Operator vs non-operator. The operator runs day-to-day operations; non-operating partners pay their WI share of costs but do not run the asset. Some Portfolio rows show operator share where disclosed.
- Consolidation method — how the issuer accounts for the asset. Separate from how much the company owns (ownership %) and who operates it, this accounting treatment decides whether an asset's figures sit inside the company's reported group totals or are stripped out to a single net line. It applies to operating assets (mines, oil & gas fields, processing facilities) and is left blank for royalties, streams, and company-level portfolio rollups.
- Consolidated — the company controls the asset and includes 100% of its figures in the group total; the portion it does not own is carried as a non-controlling interest (NCI). Control is not the same as a majority, so a company can consolidate an asset it holds less than half of. Where ownership is below 100%, the Portfolio shows the NCI percentage (100 minus the company's stake).
- Proportionate — a jointly-operated asset the company includes at its own share, line by line; the share is inside the group total.
- Equity method — an associate or joint venture shown on a single net line, with its revenue excluded from the group total. This is the usual reason a company's reported total is smaller than the sum of its individual assets; the Portfolio flags the share of a commodity total that is equity-accounted.
- Cost / other — a passive or fair-value holding, excluded from the group total.
Unit codes, conversion cheat sheets, cost benchmarks (AISC, C1–C3), reporting standards (NI 43-101, JORC, SEC S-K 1300) and resource/reserve category definitions live in the full terminology & units reference.
Each table lists the numeric band for scores 1–5 (production and resource base; grade where applicable for mining commodities) using the same thresholds as project rating stat cards. Only commodities that appear on featured projects for this document are listed.
Uranium
Copper uses kt Cu bands; lb-scale copper resources are converted to kt. Lithium grade uses hard-rock % Li₂O bands unless brine-style extraction or brine units appear on featured projects.
Assumptions
- Presented values are denominated in currency of the country where the company is headquartered. Values like market capitalization might differ from the values visible in other parts of the page, where the currency is always USD.
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