A "mutual" insurer is an incorporated insurer without capital stock or shares, and is owned by its policyholders. Laws 1957, p. 304, § 2103.
Okla. Stat. tit. 36, § 2103
"Mutual" insurer defined
Official source: Oklahoma Legislature. Reproduced from public-domain Oklahoma statutes; confirm against the official source for the current text. Not legal advice.