Okla. Stat. tit. 34 § 21
Where there are competing measures and neither receives a majority of the votes cast for and against the one receiving the greatest number of votes shall, if it has received more than one-third (1/3) of the votes cast for and against both bills, be submitted by itself at the next general election. If two or more conflicting laws shall be approved by the people at the same election, the law receiving the greatest number of affirmative votes shall be paramount in all particulars as to which there is a conflict, even though such law may not have received the greatest majority of affirmative votes. If two or more conflicting amendments to the constitution shall be approved by the people at the same election, the amendment which receives the greatest number of affirmative votes shall be paramount in all particulars as to which there is a conflict even though such amendment may not have received the greatest majority of affirmative votes.
Okla. Stat. tit. 34, § 21