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Note 2 - Summary of Significant Accounting Policies - Disaggregation of Partnership's Revenue (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
Revenue	$ 58,875	$ 43,164
Royalties, Oil [Member]
Revenue	36,638	32,622
Royalties, Natural Gas [Member]
Revenue	4,327	5,208
Royalties [Member]
Revenue	$ 40,965	$ 37,830

X

- Definition

Amount, including tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value-added and excise.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
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