Okla. Stat. tit. 19, § 19-872.1: Annexation of territory

Upon the filing of a petition with the board of county

commissioners for a change of boundary lines of any sewer

improvement district signed by a majority of the holders of title to

lands of the area proposed to be annexed to an adjacent sewer

improvement district, the board of county commissioners shall cause

notice to be published one time in some newspaper printed and

published in the county and of general circulation in the area

sought to be annexed at least ten (10) days before the time at which

such petition will be considered. Such notice shall state the time

and place when and where the petition will be considered by the

board of county commissioners, a brief substance of the petition,

and that all persons interested may appear and be heard. The board

of county commissioners shall have exclusive jurisdiction to hear

and determine all contests and objections pertaining to such

annexation, and at the time set for hearing the board may amend the

plan of annexation by excluding from within its boundaries lands

which it may deem will not be benefited by annexation to such sewer

improvement district. At such hearing the board shall also

determine whether or not the annexation of such area to such sewer

improvement district will be to the best interests of the holders of

title of the area affected, or conducive or beneficial to the public

health of said area as now exists or to be developed and if said

board determines that it will, then it shall make an order annexing

such area to said improvement district, and such territory for all

purposes shall thereafter be a part of such sewer improvement

district. The annexed territory shall assume its full proportion of

all legal indebtedness outstanding against the original sewer

improvement district, including bonded indebtedness.