"Mineral interest" defined.

RCW 78.22.020
in effect
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A mineral interest means the interest which is created by an instrument transferring, either by grant, assignment, or reservation, or otherwise an interest, of any kind, in any subsurface mineral. A mineral interest means the interest which is created by an instrument transferring, either by grant, assignment, or reservation, or otherwise an interest, of any kind, in any subsurface mineral.
Source: WA Statutes (Official Site)URL: https://app.leg.wa.gov/RCW/default.aspx?cite=78.22&full=trueFetched: 6/29/2026

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