SB 782 amends the Texas Tax Code to create a severance tax exemption for oil and gas produced from certain restimulation wells. The exemption applies to qualifying wells that meet specific criteria, such as those having undergone restimulation treatments. Hydrocarbons from these wells are exempt from severance tax for up to 36 months or until the tax exemption equals the lesser of $750,000 or the restimulation costs. Operators must apply to the Railroad Commission of Texas for well certification and then to the comptroller for the exemption. The bill also includes penalties for false claims and provides for civil enforcement.