Okla. Stat. tit. 74, § 227.3

The Oklahoma Tax Commission is by this act required to apportion monthly and place to the credit of the Circuit Engineering District Revolving Fund created pursuant to Section 1 of this act one-third of one percent (1/3 of 1%) of the total gasoline excise taxes apportioned under the provisions of paragraph 4 of subsection A of Section 500.6 of Title 68 of the Oklahoma Statutes, or under the provisions of the cited paragraph as the same may be amended or reenacted.