Okla. Stat. tit. 12, § 12-3252: Request for issuance of subpoena

A. To request issuance of a subpoena under this section, a

party must submit a foreign subpoena to a clerk of court in the

county in which discovery is sought to be conducted in this state.

A request for the issuance of a subpoena under this act does not

constitute an appearance in the courts of this state.

B. When a party submits a foreign subpoena to a clerk of court

in this state, the clerk, in accordance with that court's procedure,

shall promptly issue a subpoena for service upon the person to which

the foreign subpoena is directed.

C. A subpoena under subsection B of this section must:

1. Incorporate the terms used in the foreign subpoena; and

2. Contain or be accompanied by the names, addresses and

telephone numbers of all counsel of record in the proceeding to

which the subpoena relates and of any party not represented by

counsel.