Okla. Stat. tit. 58, § 549

If the executor or administrator resides out of the county, or absconds, or conceals himself so that the citation cannot be personally served and neglects to render an account within thirty (30) days after the time prescribed in this chapter, or if he neglects to render an account within thirty (30) days after being committed where the attachment has been executed, his letters must be revoked.