Okla. Stat. tit. 84, § 84-274: Summons - Notification to Attorney General

Upon the filing of the petition in an action authorized to be

brought pursuant to Section 271.1 or 273 of this title, the clerk of

the court shall issue summons as in other civil cases, requiring the

persons named to appear and answer as in other civil cases, and in

like manner the clerk shall also issue a summons for publication,

setting forth briefly the contents of the petition, for all persons

interested in the property to appear and answer within thirty (30)

days from the date of first publication, which summons shall be

published as required in other civil suits except that it shall not

be required to be published exceeding thirty (30) days before answer

required. If the petition has been filed by the district attorney

for the county where the property is located, a summons and a copy

of the petition shall be sent by certified mail, return receipt

requested, to the Attorney General of this state.