(a) “Financial institution” means any office or branch of a bank, savings bank, savings association, building and loan association, savings and loan association and credit union located in the State of Oklahoma.

(b) “Financial record” means any original of, or any copy of, any record held by a financial institution, or any information derived therefrom, pertaining to a customer's relationship with the financial institution.

(c) “Government authority” means any agency, board, commission or department of the State of Oklahoma, or any officer, employee, representative, or agent thereof.

(d) “Customer” means any person, corporation, partnership or other legal entity, or authorized representative thereof, who utilized or is utilizing a service of a financial institution, or for whom a financial institution is acting or has acted as a fiduciary, in relation to an account maintained in the customer's name.

(e) “Supervisory agency” means, with respect to any particular financial institution, any state agency, board, commission or department which has statutory authority to examine the financial condition or business operations of that institution.