Okla. Stat. tit. 62, § 62-57.124: Pledge of cigarette tax

It is hereby expressly provided and pledged for the benefit of

the purchasers, owners and holders of said bonds that five cents

($0.05) of the tax on each package of cigarettes levied by Section

1, Chapter 47, 1968 Oklahoma Session Laws, constituting the

remainder of revenue available for the revenues lawfully levied and

collected by the State of Oklahoma on the sale of cigarettes not

already committed to other obligations of the State of Oklahoma, or

so much as may be necessary, shall be devoted irrevocably to the

payment and discharge of the interest on, and the principal of, the

bonds issued hereunder as the same become due, and said revenues

shall be, and hereby are, irrevocably pledged for such purposes.