Okla. Stat. tit. 19, § 348

All matters pertaining to the interest of the county shall be heard by the board of county commissioners in open session only and no executive session shall be held by said county commissioners pertaining to any matters coming before them, except in the manner and situations provided by Section 307 of Title 25 of the Oklahoma Statutes. Where the county has no courthouse, or the courthouse shall be unfit or inconvenient, they may hold their sessions for the transaction of business at any other suitable place in the county seat. No claim presented to the board of county commissioners shall be laid over longer than to the next regular session, when it shall be finally acted upon.