Okla. Stat. tit. 11 § 24-113
The Authority may establish, levy and collect or may authorize, by contract, franchise, lease or otherwise, the establishment, levying and collection of rents, rates and other charges for the products and services afforded by the Authority or by or in connection with any project which it may construct, acquire, own, operate or control or with respect to which it may have any interest or any right to the products and services thereof as it may deem necessary, proper, desirable or reasonable. Rents, rates and other charges shall be at least sufficient to meet the operation, maintenance and other expenses thereof, including reasonable reserves, interest and principal payments, including payments into one or more sinking funds for the retirement of principal, to comply with all terms and provisions of the bond resolution, trust indenture or other security agreement relating to the bonds issued in connection with any project, to accumulate any excess income which may be required by the purchasers of such bonds or may be dictated by the requirements of such bond resolution, trust indenture or security agreement for achieving ready marketability of and low interest on such bonds and to generate funds sufficient to fulfill the terms of any other contracts or agreements made by the Authority. The Authority may pledge its rates, rents and other revenue, or any part thereof, as security for the repayment, with interest and premium, if any, of any monies borrowed by it or advanced to it for any of its authorized purposes and as security for the payment of amounts due and owing by it under any contract.
The Authority shall be exempt in any and all respects from the jurisdiction or control of the Oklahoma Corporation Commission. Nothing herein shall be construed as depriving the State of Oklahoma of its power to regulate and control fees and/or charges to be collected for the use of any products and services afforded by the Authority, provided, that the State of Oklahoma does hereby pledge to and agree with the purchasers and successive holders of the bonds issued hereunder that the state will not limit or alter the power hereby vested in the Authority to establish, levy and collect such rents, rates and other charges as will produce revenue sufficient to meet the operation, maintenance and other expenses set forth in the preceding paragraph of this Section 13, or in any way to impair the rights or remedies of the holders of the bonds, or of any person in their behalf, until the bonds, together with the interest thereon, with interest on unpaid installments of interest and all costs and expenses in connection with any action or proceedings by or on behalf of the bondholders and all other obligations of the Authority in connection with such bonds are fully met and discharged.
Okla. Stat. tit. 11, § 24-113