Okla. Stat. tit. 36, § 36-4804: Policy limited – Liability - Excess premiums reimbursed

No insurance company shall, knowingly, issue any fire insurance

policy upon property within this state for an amount which, with any

existing insurance thereon, exceeds the fair value of the property.

If buildings insured against loss by fire, and situated within this

state, are totally destroyed by fire, the company shall not be

liable beyond the actual value of the insured property at the time

of the loss or damage, and if it shall appear that the insured has

paid premiums on an amount in excess of said actual value, the

assured shall be reimbursed the proportionate excess of premiums

paid on the difference between the amount named in the policy and

said actual value, with interest at six percent (6%) per annum from

the date of issue.