Okla. Stat. tit. 36, § 36-992

Insurers; Prohibited Activity.

A. No insurer shall:

1. Attempt to monopolize, or combine or conspire with any

person or persons to monopolize an insurance market;

2. Engage in a boycott, on a concerted basis, of an insurance

market; and

3. Except as set forth in subsection B of this section, agree

to mandate adherence to or to mandate use of any rate, prospective

loss cost, rating plan, rating schedule, rating rule, policy or bond

form, rate classification, rate territory, underwriting rule,

survey, inspection or similar material. Insurers and advisory

organizations may agree to develop and adhere to statistical plans

permitted by this title.

B. The fact that two or more insurers, whether or not members

or subscribers of an advisory organization, use consistently or

intermittently the same rates, prospective loss costs, rating plans,

rating schedules, rating rules, policy or bond forms, rate

classifications, rate territories, underwriting rules, surveys or

inspections or similar materials is not sufficient in itself to

support a finding that an agreement exists.

C. Two or more insurers having a common ownership or operating

in this state under common management or control may act in concert

between or among themselves with respect to any matters pertaining

to those activities authorized in the Property and Casualty

Competitive Loss Cost Rating Act as if they constituted a single

insurer.