Okla. Admin. Code § 710:50-3-20
The phrase "Any person, or any member of any firm or association, or any official, agent or employee of any corporation..." shall include, but not be limited to, the person who, in the normal course of business, is responsible for the daily accounting or recordkeeping, reporting, preparation of financial statements, custodian of records, or who has supervisory responsibility for any of the persons or duties described. These terms shall also include all officers or directors involved to any extent in the daily operation of the business, or in any way with the management of the business or financial decision making process. It shall also include any person filing an Oklahoma Income Tax Return, or, in the determination of a filing requirement, any person who the Commission has reason to believe is required to file an Oklahoma Income Tax Return. [See: 68 O.S. §§ 206, 243 ]
Okla. Admin. Code § 710:50-3-20