Section 710 - Limit of riskA. No insurer shall retain any risk on any one subject of insurance, whether located or to be performed in Oklahoma or elsewhere, in an amount exceeding ten percent (10%) of its surplus to policyholders.B. A "subject of insurance" for the purposes of this section, as to insurance against fire and hazards other than windstorm or earthquake, includes all properties insured by the same insurer which are customarily considered by underwriters to be subject to loss or damage from the same fire or other such hazard insured against.C. Reinsurance authorized by Section 711 of this article shall be deducted in determining risk retained. As to surety risks, deduction shall also be made of the amount assumed by any established incorporated cosurety and the value of any security deposited, pledged, or held subject to the surety's consent and for the surety's protection.D. "Surplus to policyholders" for the purpose of this section shall be deemed to include any voluntary reserves which are not required pursuant to law, and shall be determined from the last sworn statement of the insurer on file with the Insurance Commissioner or by the last report of examination by the Insurance Commissioner, whichever is the more recent at time of assumption of such risk.E. As to alien insurers, other than life insurers domiciled in Canada, this section shall relate only to risks and surplus to policyholders of the insurer's United States branch.F. This section shall not apply to group life or group or blanket accident and health insurance, title insurance, insurance of ocean marine risks or maine protection and indemnity risks, workers' compensation insurance, employers' liability coverages, nor to any policy or type of coverage as to which the maximum possible loss to the insurer is not readily ascertainable on issuance of the policy.Okla. Stat. tit. 36, § 710
Laws 1957, p. 242, § 710.