Okla. Stat. tit. 62, § 62-662: Bids for purchase of materials and supplies costing over

$500 - Meetings of trustees - Records.

In all cases where the trustees shall contract for the payment

of Two Thousand Dollars ($2,000.00) or more for the purchase of any

materials, equipment, or supplies or for the construction of

facilities, said contract shall be made only, after public

advertisement for bids, to the lowest and best bidder upon the

proposal so advertised.

All meetings of the trustees shall be open to the public to the

same extent as is required by law of meetings by other boards and

commissions, and all records of the trustees shall be public records

as provided by law and shall be kept either in the office of the

city clerk or the county clerk, as the case may be.