Okla. Stat. tit. 6, § 6-2023: Exercising power of federally chartered credit union -

Exceptions.

A credit union chartered under the laws of the State of

Oklahoma, the member accounts of which are insured under Title II of

the Federal Credit Union Act, may exercise any of the powers of a

federally chartered credit union doing business in this state, until

otherwise provided by the Legislature; and provided that the State

Credit Union Board may by rule prohibit the exercise of any such

power if the Board finds that the exercise thereof will not serve

the public convenience and advantage and will not equalize and

maintain the quality of competition between state and federal credit

unions.