Okla. Stat. tit. 26 § 7-136
The county election board shall convene at the county courthouse, or at such other place as the county election board may designate on the day of each election, for the purpose of receiving the official precinct returns and shall remain in session until such precinct returns are all delivered. The board shall cause to be accumulated and listed the results of such election, as the official precinct returns are received, in a manner and upon forms prescribed by the Secretary of the State Election Board. The county election board shall use such precinct returns to certify the results of such election for county officers and questions and shall transmit electronically or in writing as prescribed by the Secretary of the State Election Board after 5 p.m. on Friday following the election to the State Election Board the completed county returns for all state officers and questions. Such county returns shall be prima facie evidence of the correctness of the result in the several counties. The State Election Board shall use such county returns to certify the results of such election for all state officers and questions after 5 p.m. on Tuesday next succeeding the election.
Okla. Stat. tit. 26, § 7-136