At least three-fourths of the registered voters and the owners of at least three-fourths (in value) of the property in any territory adjacent or contiguous to the municipality may request annexation by signing and filing a petition with the governing body of the municipality. The petitioners must give notice of the presentation of the petition by publication at least once each week for two (2) successive weeks in a newspaper of general circulation in the municipality where the petition has been presented. The municipality may pay the cost of the annexation proceedings. After the notice of the petition has been given, the governing body by ordinance may annex the territory to the municipality.
Okla. Stat. tit. 11, § 21-105