Note 5 - Supplemental Oil and Gas Information (Details Textual) - USD ($)	Jul. 31, 2026	Jul. 31, 2025
Oil and Gas, Successful Efforts Method, Property and Equipment, after Accumulated Depreciation, Depletion, Amortization, and Impairment	$ 0
Oil and Gas, Standardized Measure, Discounted Future Net Cash Flow, Future Net Cash Flow, after Discount	$ 0	$ 156,671

Amount, after discount, future accumulated cash outflow for development and production costs, and future income tax expense, of estimated future accumulated cash inflow for proved oil and gas reserves.

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+ Details