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Mentor Capital, Inc. (MNTR) stock intrinsic value fair value estimate & owner earnings analysis

Margin of safety$0.00 ComplexityAverage Updated
Business condition attached to the margin of safety Recurring energy-royalty income (plus any other operating earnings) large enough to cover the roughly $780,000 a year of corporate overhead, with the business producing positive cash earnings on its own without relying on selling investments or issuing new equity.
Mentor Capital is a very small holding company based in Plano, Texas. In October 2023 it sold its 51% stake in Waste Consolidators, Inc., its only sizeable operating business, for $6,000,000. Since then it has been redeploying that money toward what it calls the classic energy sectors. In March 2025 it paid $1,369,899 for three small, non-operating royalty interests in producing oil and gas wells in the Spraberry Field of the Permian Basin in West Texas (about 121 wells, with stakes of roughly 0.03% to 0.15%). It also holds about $0.9 million of listed securities and $0.5 million of gold, which management describes as a placeholder until new energy investments are arranged. What the business actually earns: in 2025 the royalties produced $166,811 of revenue over roughly eight months of ownership. Against that, corporate costs were $780,394 (2024: $780,212). Operating cash flow was a loss of $497,071 in 2025 and $627,055 in 2024. After removing small working-capital swings and about $6,000 of equipment purchases, owner earnings were about negative $0.023 per share in 2025 and negative $0.027 in 2024. Earlier years are not comparable because they include the waste business that was sold. The 2025 loss is explained by the numbers: a small royalty stream carrying a fixed overhead several times its size. Royalty interests also deplete as wells age, and the company amortized $103,251 of them in 2025. Cash fell from $2.18 million to $49,193 during 2025 as money moved into royalties, gold and securities, and management says it expects to fund new activity by selling more preferred or other equity, or by borrowing. In April 2026 the CEO converted 11 Series Q preferred shares into 5,906,107 new common shares (against 21,683,189 outstanding at year-end), diluting existing holders by roughly a fifth. How we value it: we value only earnings that the business is already producing and can evidence. Annualized, the royalties bring in roughly $0.2 million a year before depletion, which is well short of the $0.5 to $0.6 million a year that it costs to run the company. We cannot name a signed contract, a purchase already made, or a proven repeatable process that would close that gap, so no growth is credited in any case. In the bear, base and bull cases alike, the ongoing business produces negative owner earnings and we assign it $0 per share. The bull case, in which the royalty wells keep producing at the recent rate, still does not cover overhead. The company does not carry meaningful debt; its liabilities are $541,744, mostly $502,805 of accrued salary and retirement obligations owed to related parties. What we are not counting: the securities and gold on the balance sheet (total shareholders' equity of $2.3 million at year-end 2025, about $0.11 per year-end share, or roughly $0.08 after the April 2026 conversion) are real, but they are a store of value that management is spending down through overhead, not an earnings stream. A reader who values the company at liquidation would reach a positive number that our earnings-based approach does not, and the gap is exactly the point: at the current burn of roughly $0.5 million a year, that asset base erodes by about a fifth each year unless royalty income or new investments change the picture. What would make this wrong: successful new energy acquisitions or a jump in royalty volumes and oil prices that covers overhead, or a reduction of overhead. The estimate would credit that only once it appears in reported results. The company's 2022 auditor report carried a going-concern paragraph, and its earlier waste business was replaced by a new auditor in 2026; the most recent annual report contains no substantial-doubt language, but with year-end cash of only $49,193 liquidity depends on selling investments.
Fiscal yearOwner's earningsMethodology
2025 -$0.02 ▼
OE = CFO - working capital movement - SBC - maintenance capex. CFO=$(497,071); working-capital cash effect (royalty receivable -26,000; prepaid -1,052; AP -2,805; accrued expenses -4,021; accrued related-party salary +26,227) = $(7,651), removed so OE is higher by that amount; SBC=$0 (none reported); capex=$5,992 (purchase of property and equipment), treated as all maintenance (revenue base only began in 2025, growth-capex formula not meaningful); acquisition of $1,369,899 Permian royalty interests and purchases of gold/securities are investments, not capex. OE=-497,071+7,651-0-5,992=$(495,412); diluted shares=21,685,656; OE/sh=$(0.0228). Reconciliation: net loss (574,119) + D&A (3,445) + royalty amortization 103,251 + gain on securities (15,107) = (489,420), ties to CFO less WC effect. Source: FY2025 10-K, accession 0001493152-26-016728.
2024 -$0.03 ▼
OE = CFO - working capital movement - SBC - maintenance capex. CFO=$(627,055); working-capital cash effect (other receivables +15,000; prepaid -502; AP +14; accrued expenses -48,861; accrued related-party salary +40,066) = +$5,717; SBC=$0; capex=$0. OE=-627,055-5,717-0-0=$(632,772); diluted shares=23,472,892; OE/sh=$(0.0270). Series limited to FY2024-FY2025: the company sold its majority waste-services subsidiary in October 2023, so earlier years describe a different business. Source: FY2025 10-K (comparative column), accession 0001493152-26-016728.

Owner's earnings per share by fiscal year, most recent first. Tap a row to see how that figure was calculated, including the source filing.

Sales geography
United States - West Texas (Permian Basin, Spraberry Field, including Howard County and Martin County, Texas), oil and gas royalty income
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