Okla. Stat. tit. 12, § 12-1386: Order and service of injunction

The order of injunction shall be addressed to the party

enjoined, shall state the injunction, and shall be issued by the

clerk. Where the injunction is allowed at the commencement of the

action, the clerk shall endorse upon the summons "Injunction

allowed," and it shall not be necessary to issue the order of

injunction, nor shall it be necessary to issue the same where notice

of application therefor has been given to the party enjoined. The

service of the summons so endorsed, or the notice of an application

for an injunction, shall be notice of its allowance.