Okla. Stat. tit. 34, § 34-25: Time for submission of initiated and referred measures

Whenever any measure shall be initiated by the people in the

manner provided by law, or whenever the referendum shall be demanded

against any measure passed by the Legislature, same shall be

submitted to the people for their approval or rejection at the next

regular election; provided, the Governor shall have power, in his

discretion, to call a special election to vote upon such questions,

or to designate the mandatory primary election as a special election

for such purpose.