Okla. Stat. tit. 82, § 82-1282: Joining and withdrawing from district - Consent to

provide certain services - Purchase of certain facilities.

A. Once a district has been organized under this act, any one

or more public agencies not joining in the original organization

agreement may subsequently join the district by becoming a signatory

to the interlocal agreement. A public agency, by act of its

governing body, may withdraw from a district after it is organized;

however, such withdrawal shall not impair the rights of the district

or other person in any contract, pledge of revenues or other

financial obligation to which the public agency is a party. Such

withdrawal may only be permitted by the board if rights of the

district, other public agency members and holders of any

obligations, contractual or otherwise, can be adequately protected

by the authority or any settlement agreed upon with the withdrawing

public agency.

B. A district may not provide water, sewage or any other

services to an existing public agency or to persons within the

geographic boundaries of an existing public agency which provides

water or sewage services without the consent of the public agency,

which consent shall be given by action of its governing body. In

case of annexation of district territory by a municipality which is

not a member of the district, the municipality may purchase at the

appraised value the district's water and sewage facilities except

those facilities necessary for the operation of the remainder of the

district.