Okla. Stat. tit. 10, § 7502-1.2
Proceedings for adoption shall be brought in the district court in the county where the petitioners or the child to be adopted reside, in Tulsa County or in Oklahoma County.
Laws 1957, SB 184, c. 2b, § 4, p. 23; Amended by Laws 1991, SB 425, c. 113, § 3, eff. September 1, 1991; Amended by Laws 1997, HB 1241, c. 366, § 5, eff. November 1, 1997; Renumbered from 10 O.S. § 60.4 by Laws 1997, HB 1241, c. 366, § 58, eff. November 1, 1997 (superseded document available); Amended by Laws 2009, HB 2174, c. 107, § 1, eff. November 1, 2009 (superseded document available).