RTC §60050.2: (a) For the privilege of storing, for the purpose of sale, each supplier, wholesaler, and retailer owning 1,000 or more gallons of tax-paid diesel fuel on November 1, 2017, shall pay a storage tax of

(a) For the privilege of storing, for the purpose of sale, each supplier, wholesaler, and retailer owning 1,000 or more gallons of tax-paid diesel fuel on November 1, 2017, shall pay a storage tax of twenty cents ($0.20) per gallon of tax-paid diesel fuel in storage according to the volumetric measure thereof. (b) For purposes of this section: (1) “Owning” means having title to the diesel fuel. (2) “Retailer” means any person who sells diesel fuel in this state to a person who subsequently uses the diesel fuel. (3) “Storing” includes the ownership or possession of tax-paid diesel fuel outside of the bulk transfer/terminal system, including the holding of tax-paid diesel fuel for sale at wholesale or retail locations stored in a container of any kind, including railroad tank cars and trucks or trailer cargo tanks. “Storing” also includes tax-paid diesel fuel purchased from and invoiced by the seller, and tax-paid diesel fuel removed from a terminal or entered into by a supplier, prior to the date specified in subdivision (a) and in transit on that date. (4) “Wholesaler” means any person who sells diesel fuel in this state for resale to a retailer or to a person who is not a retailer and subsequently uses the diesel fuel.