Ohio Rev. Code Ann. § 5736.01
As used in this chapter:
(D) "First sale of motor fuel within this state" means the initial sale of motor fuel to a point outside a distribution system, wherever the sale occurs, without regard to where title transfers or other conditions of sale, when sold for delivery to a location in this state as that location is shown on the bill of lading or other similar document issued by the terminal, refinery, or supplier. "First sale of motor fuel within this state" excludes the following:
(E)
(1) "Calculated gross receipts" means the sum of the following:
(2) A supplier that has acquired blend stocks or additives with respect to which the tax imposed by this chapter has previously been paid may exclude the product of the following amounts from the calculation of the supplier's "calculated gross receipts" under division (E) of this section, provided that the supplier uses the blend stocks or additives for blending with motor fuel:
(I) "Supplier" means any of the following: