Okla. Stat. tit. 19, § 19-72: Election - How called

Upon a petition in writing, signed by twenty-five percent (25%)

of the qualified electors of the county, such percent to be

determined by the total vote cast in such county for the head of the

state ticket in the next preceding general election, said petitions

being verified by an affidavit, showing that the petitioners are

qualified electors of said county, and such petitions being filed

with the Governor, the Governor shall, within thirty (30) days,

issue his proclamation calling an election to be held in such county

not less than sixty (60) nor more than seventy (70) days from the

date of his proclamation.