Okla. Stat. tit. 12, § 3007
Contents of a record may be proved by the testimony or deposition of the party against whom offered or by that party’s written admission without accounting for the nonproduction of the original.
Laws 1978, SB 276, c. 285, § 1007, eff. October 1, 1978; Amended by Laws 2002, HB 1939, c. 468, § 70, eff. November 1, 2002 (superseded document available).