Okla. Stat. tit. 82 § 1085.16
If any water distribution systems or districts or county water improvement districts have ever been formed, any easements or property are transferred to the Oklahoma Water Resources Board for release of easements. All districts heretofore formed pursuant to the provisions of Sections 281 through 447, inclusive, in Title 82 of the Oklahoma Statutes, shall have the right to continue to operate pursuant to said statutes. The property and easements of those districts heretofore formed pursuant to said laws, but which are inactive, are hereby transferred to the board of county commissioners of the county wherein such easements or property are located; and, the board of county commissioners of said county shall have the right to maintain or release said easements or dispose of said property as provided by law.
Okla. Stat. tit. 82, § 1085.16