2023 Washington Code 78.22.020 – “Mineral interest” defined

2022 Washington Code 78.22.020 – “Mineral interest” defined

2020 Washington Code 78.22.020 – “Mineral interest” defined

2019 Washington Code 78.22.020

2018 Washington Code 78.22.020 – “Mineral interest” defined

2016 Washington Code 78.22.020 – “Mineral interest” defined

2015 Washington Code 78.22.020 – “Mineral interest” defined

2014 Washington Code 78.22.020 – “Mineral interest” defined

2013 Washington Code 78.22.020 – “Mineral interest” defined

2009 Washington Code 78.22.020 – Mineral interest defined