Okla. Stat. tit. 58, § 111
Letters of administration with will annexed must be substantially in the following form:
State of Oklahoma,
County of ______.
The last will of A B, deceased having been proved and recorded in the county court of the county of ______ and there being no executor named in the will (or, as the case may be,) C D is hereby appointed administrator, with the will annexed.
Witness G H, judge of the county court of the county of ______, with the seal of the court affixed, the ______ day of ______ A. D., 19__.
R.L. 1910, § 6243; Amended by Laws 1953, HB 676, p. 234, § 11.