Okla. Stat. tit. 10, § 9
The abuse of parental authority is the subject of judicial cognizance in a civil action in the district court brought by the child or any grandparent on the child's behalf, or by its relatives within the third degree of consanguinity or affinity, or by the officers of the poor where the child resides or by any foster parent of the child or any person who has been a foster parent of the child; and when the abuse is established, the child may be freed from the dominion of the parent, and the duty of support and education enforced.
R.L. 1910, § 4372; Amended by Laws 1991, HB 1761, c. 296, § 26, eff. September 1, 1991.