Okla. Stat. tit. 19, § 19-328: Powers and duties of chairman

It shall be the duty of the chairman of the board of county

commissioners to preside at the meetings of said board, and he shall

have the power to administer oaths to any person concerning any

matter submitted to the board or connected with their powers and

duties; and all orders made by the board of county commissioners,

and all warrants drawn on the county treasurer, shall be signed by

the chairman and attested by the clerk.