Okla. Stat. tit. 71, § 71-656: Power and duties of Administrator

A. The Administrator may:

1. Make such public or private investigations within or without

this state as he deems necessary to determine whether any person has

violated or is about to violate this Code or any rule or order

issued hereunder, or to aid in the enforcement of this Code or in

the prescribing of rules and forms hereunder;

2. Require or permit any person to file a statement in writing,

under oath or otherwise as the Administrator determines, as to all

of the facts and circumstances concerning the matter being

investigated;

3. Publish information concerning any violation of this Code or

any rule or order issued hereunder or concerning subdivided lands,

or practices in the disposition thereof, which appear or tend to be

unfair, inequitable or fraudulent; and

4. Hold hearings upon reasonable notice in respect of any

matter arising out of the administration of this Code.

B. For the purpose of any investigation, hearing or proceeding

under this Code, the Administrator or any officer designated by him

may administer oaths and affirmations, subpoena witnesses, compel

their attendance, take evidence and require the production of any

books, papers, correspondence, memoranda, agreements or other

documents or records which the Administrator deems relevant or

material to the inquiry.

C. In case of contumacy by or refusal to obey a subpoena issued

to any person, the district court of Oklahoma County or the district

court in any other county where service can be obtained on one or

more of the defendants, upon application by the Administrator, may

issue to the person an order requiring him to appear before the

Administrator, or the officer designated by him, there to produce

documentary evidence if so ordered or to give evidence touching the

matter under investigation or in question. Failure to obey the order

of the court may be punished by the court as a contempt of court.

D. No person is excused from attending and testifying or from

producing any document or record before the Administrator, or in

obedience to the subpoena of the Administrator or any officer

designated by him, or in any proceeding instituted by the

Administrator, on the ground that the testimony or evidence required

of him may tend to incriminate him or subject him to a penalty or

forfeiture; but no individual may be prosecuted or subjected to any

penalty or forfeiture for or on account of any transaction, matter

or thing concerning which he is compelled, after claiming his

privilege against self-incrimination, to testify or produce

evidence, except that the individual testifying is not exempt from

prosecution and punishment for perjury or contempt committed in

testifying.