Okla. Stat. tit. 67 § 92
The person, firm or corporation, to whom any contract may be awarded under the provisions of this act, shall before entering upon the duties provided in said contract and prescribed by law, execute to the State of Oklahoma and file with the county clerk a bond in the penal sum of not less than Five Thousand Dollars ($5,000.00), nor more than Ten Thousand Dollars ($10,000.00), according as the board of county commissioners shall determine, with one or more sufficient sureties, to be approved by the board of county commissioners, which bond shall be conditioned for the faithful performance of said contract and the duties to be performed by said contractor as fixed by the laws of this state. The term of said contract shall be fixed by the board of county commissioners for such period of time as they may deem advisable, not to exceed two (2) years.
Okla. Stat. tit. 67, § 92