Okla. Stat. tit. 5A , app 4 R. 2.9
COMMENT
[1] To the extent reasonably possible, all parties or their lawyers shall be included in communications with a judge.
[2] Whenever the presence of a party or notice to a party is required by this Rule, it is the party's lawyer, or if the party is unrepresented, the party, who is to be present or to whom notice is to be given.
[3] The proscription against communications concerning a proceeding includes communications with lawyers, law teachers, and other persons who are not participants in the proceeding, except to the limited extent permitted by the Rule.
[4] A judge may initiate, permit, or consider ex parte communications expressly authorized by law, such as when serving on specialized
courts, mental health courts, or drug courts. In this capacity, judges may assume a more interactive role with parties, treatment providers, probation officers, social workers, and others.
[5] A judge may consult with other judges on pending matters, but must avoid ex parte discussions of a case with judges who have previously been disqualified from hearing the matter, and with judges who have appellate jurisdiction over the matter.
[6] The prohibition in the rule against a judge investigating the facts in a case independently or through a member of the judge's staff extends to information in all mediums, including electronic ones.
[7] The prohibition does not apply to a judge's effort to obtain general information about a specialized area of knowledge that does not include the application of such information in a specific case.
[8] The prohibition in this rule does not apply to interstate or state-federal communications among judges on the general topic of case management decisions in mass torts or other complex cases, such as discovery schedules, standard interrogatories, shared discovery depositories, appointment of liaison counsel, committee membership, or common fund structures. If communications of this nature have occurred the judge should disclose these communications to the parties.
[9] A judge may consult ethics advisory committees, outside counsel, or legal experts concerning the judge's compliance with this Code. Such consultations are not subject to the restrictions of paragraph (A)(2).