Okla. Admin. Code § 365:10-9-16
(a) Annual report of investments to contractholders. Any company issuing individual variable annuity contracts providing benefits in variable amount, shall mail to the contractholder, at least once in each contract year, after the first, at his last address known to the company, a statement or statements reporting the investments held in the separate account and, in the case of contracts under which payments have not yet commenced, a statement reporting as of a date not more than four months previous to the date of mailing: