Okla. Stat. tit. 17, § 17-136: Extension of telephone service to open territories -

Petition - Notice and hearing.

Upon the petition of any citizens residing in territory which is

open territory, requesting telephone service from an adjacent

telephone exchange, the Commission may cause the same to be set for

hearing and give due and proper notice in writing, at least ten (10)

days prior to the date of hearing, to all persons, firms or

corporations holding certificates to furnish service in adjacent

territory or furnishing service in adjacent territory and to the

municipal officials of all municipalities in said affected

territories, and by publication for one (1) week in a newspaper of

general circulation in the territory affected. If, at such hearing,

the Commission finds from competent evidence that the public

convenience and necessity requires the furnishing of telephone

service in the affected territory, it shall have the further power

to order and direct the person, firm, association, corporation or

cooperative which can most economically extend its service so as to

furnish efficient telephone service in the affected territory to so

extend its service, provided that it shall not make an order so

requiring unless it finds, from substantial evidence, that the

person, firm or corporation so ordered to serve is earning a fair

return on the fair value of its property devoted by it to the public

service in this state and that the rendition of service in the

affected territory will not prevent the person, firm or corporation

so ordered to serve from earning a fair return on the fair value of

its property devoted to the public service in this state.