Okla. Stat. tit. 36, § 36-2112: Additional kinds of insurance, mutual

A domestic mutual insurer after being authorized to transact one

kind of insurance shall be authorized by the Insurance Commissioner

to transact such additional kinds of insurance as are authorized

under Section 609 of Article 6 and upon otherwise qualifying

therefor and depositing and thereafter maintaining on deposit with

the State Treasurer through the Insurance Commissioner unimpaired

surplus funds in amount not less than the amount of capital required

of a domestic stock insurer transacting like kinds of insurance, and

subject further to the additional surplus requirements of Section

611 of Article 6 if applicable (expendable additional surplus in

amount of one-half (1/2) of required surplus if it qualifies to

transact more than one kind of insurance within first five (5)

years).