Okla. Stat. tit. 18, § 18-592: Fire departments for unincorporated areas - Incorporation

The authority of persons associated together to become

incorporated as a charitable corporation for the purpose of

providing either a volunteer or full-time fire department for an

unincorporated area or place is hereby ratified and confirmed. Such

a corporate fire department shall have authority to provide fire

protective service both to its members and to nonmembers, either

within or without the unincorporated area wherein it is situated.