Okla. Stat. tit. 67, § 67-92: Contractor's bond - Term of contract

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.