Hydrogen severance taxation.

HB 121 imposes a severance tax on hydrogen production in Wyoming, directly affecting companies and entities producing hydrogen within the state. It taxes hydrogen based on its fair market value (similar to natural gas taxation), with a 9% rate for hydrogen produced from water and a 3% rate for hydrogen from other feedstocks like natural gas or biomass. The tax applies to the gross value of hydrogen produced, with exemptions and collection procedures mirroring existing natural gas severance tax rules. The law would take effect for all hydrogen production starting July 1, 2026.