Okla. Stat. tit. 19 § 625
The treasurer shall be the collector of taxes, and shall keep his office at the county seat. He shall be charged with the amount of all tax lists in his hands for collection, and credited with the amount collected thereon, and the delinquent list, and shall keep a fair and accurate current account of the moneys by him received showing the amount thereof, the time when, from whom, and on what account received, in cash, warrants, county or road orders; and if in warrants or orders, their kind, number or other designation, amounts for which they were drawn, interest due thereon, and the amounts of the receipts thereon endorsed, if any; also of all disbursements by him made, showing the time when, to whom, on what account, and the amounts paid; and he shall so arrange his books that the amounts received and paid on account of each separate and distinct fund or appropriation shall be exhibited in separate and distinct columns or accounts, and so as to show whether the same was received or paid in cash, or warrants or orders, and if either of the latter, their designation and other particulars as above required; and the county treasurer shall at all times exhibit such accounts when desired, to the state, county or school officers entitled to examine the same and shall at any time pay over the balance in his hands to them, upon receiving proper vouchers.
Okla. Stat. tit. 19, § 625