Ohio Rev. Code Ann. § 5735.05
(A) There is hereby levied a motor fuel excise tax on each motor fuel dealer, measured by gross gallons, upon the receipt of motor fuel within this state. The tax is levied at the rates prescribed by divisions (E) and (F) of this section. The revenue derived from twenty-eight cents per gallon of such tax rates shall be distributed under divisions (A), (B), (C), and (D) of section 5735.051 of the Revised Code to fund the following purposes in the following amounts:
(C) The tax imposed by this section does not apply to the following transactions:
(E) Except as otherwise provided by division (F) of this section, the rates of tax imposed by this section on each gallon of motor fuel on and after July 1, 2019, shall be as follows:
(F) The tax on each gallon equivalent of compressed natural gas shall be: