- Who serves an Oklahoma summons
- Process other than a subpoena is served, at the plaintiff’s election, by a sheriff or deputy sheriff, by a person specially appointed for that purpose, or by a holder of a 12 O.S. § 158.1 license. The court is directed to make special appointments freely.
- 12 O.S. § 2004(C)(1)(a)
- Getting the summons to the person serving
- Upon the filing of the petition the clerk issues a summons, which warns that failure to appear brings judgment by default for the relief the petition demands. When a license holder or a specially appointed person will serve it, the plaintiff’s attorney of record delivers the summons to that person. When a sheriff of another county will serve, the court clerk mails it to that sheriff.
- 12 O.S. § 2004(A), (B)(1), (C)(1)(b)
- The 12 O.S. § 158.1 license
- The presiding judge of the judicial administrative district, or a district or associate district judge of the county the presiding judge designates, issues the license to persons found qualified. An applicant must be 18 or older, of good moral character, found ethically and mentally fit, an Oklahoma resident for at least six months, and a resident of the county or judicial administrative district of the application for at least 30 days, and applies to the court clerk on a verified form prescribed by the Administrative Office of the Courts. The clerk gives 30 days’ notice of the hearing, and the applicant publishes notice of it once in a legal newspaper of the county where the application is filed at least 20 days before. If no protest is filed and the applicant appears qualified, the application is granted at the hearing (a written protest moves it to a later hearing within 60 days), and the applicant is authorized to serve on executing a bond running to the State of Oklahoma for faithful performance and filing it with the court clerk. A conviction for a violent crime, or a crime requiring sex offender registration, bars a license.
- 12 O.S. § 158.1(A)–(F)
- One license reaches every county
- The license states that its holder is an officer of the court only for the purpose of service of process. The holder’s authority is statewide, and the license is carried while on duty. One calendar year after the first license issues, it is renewed for a period of three years.
- 12 O.S. § 158.1(C)
- Serving without an Oklahoma license
- Knowingly and willfully serving process in Oklahoma without a process server license issued by the State of Oklahoma is a misdemeanor on conviction. That subsection does not reach a process server holding another state’s license who serves court documents issued by another state’s court on a person in Oklahoma. We arrange Oklahoma service through servers who hold a 12 O.S. § 158.1 license.
- 12 O.S. § 158.1(I)
- The clerk’s list and the statewide registry
- Each court clerk keeps the list of private process servers holding a license, and the Administrative Office of the Courts keeps a statewide registry of them. A person who needs a process server may designate one from the list before presenting the summons to the clerk for issuance, without individual judicial appointment, and the license holder serves on that person’s request. We arrange the license holder for your Oklahoma service.
- 12 O.S. §§ 158.1(J)–(K), 158.2
- Who may serve a subpoena
- Anyone 18 or older. The clerk issues a subpoena signed and sealed but otherwise in blank to the party requesting it, who fills it in before service, and an attorney authorized to practice in Oklahoma may also issue and sign one on behalf of an Oklahoma court.
- 12 O.S. § 2004.1(A)(4), (B)(1)
- Serving an individual
- The summons and petition are delivered personally, or left at the dwelling house or usual place of abode with someone 15 or older who lives there. They may also be delivered to an agent authorized by appointment or by law to receive service of process, or left at an agreed meeting place with a person who lives at the defendant’s dwelling house or usual place of abode.
- 12 O.S. § 2004(C)(1)(c)(1)
- Served together, dated on the copy
- The summons and petition are served together, and the plaintiff furnishes the person making service with the copies needed. On personal delivery, the person serving writes the date of service on the copy left with the person served. That duty is not jurisdictional, but if missing it prejudices the person served, the court may extend the time to answer on that person’s motion.
- 12 O.S. § 2004(D)
- Children under 15 and incompetent persons
- A child under 15 is served personally and through either parent or a guardian, or, if they cannot be found, through the person who has care or control of the child or with whom the child lives. An incompetent person is served personally and through that person’s guardian.
- 12 O.S. § 2004(C)(1)(c)(2)
- Corporations, partnerships and associations
- Copies go to an officer, a managing or general agent, or any other agent authorized by appointment or by law to receive service of process; where a statute authorizes that agent and so requires, a copy is also mailed to the defendant. A partnership or other unincorporated association that can be sued under a common name is served the same way. Every domestic corporation keeps a registered agent in Oklahoma, and an individual agent must be generally present at the registered office to accept service of process.
- 12 O.S. § 2004(C)(1)(c)(3); 18 O.S. § 1022(A), (C)
- Limited liability companies
- A domestic LLC keeps a registered agent in Oklahoma, whose business office matches the registered office and is open during regular business hours to accept service. If the LLC has no registered agent, or the agent cannot be found, the Secretary of State may be served as its agent as 12 O.S. § 2004 provides.
- 18 O.S. § 2010(A), (E)
- The Secretary of State in place of a missing agent
- A domestic or foreign corporation may be served through the Secretary of State when no registered agent is listed in the Secretary of State’s records, or when neither the registered agent nor an officer could be found at the registered office when service was attempted. First, service must be attempted in person or by mail at the last-known address on the records of the Franchise Tax Division of the Oklahoma Tax Commission and of the Secretary of State, if any is listed, and at the last address known to the plaintiff; a certified copy of the return showing that attempt goes to the Secretary of State. Where a registered agent is listed, the plaintiff also furnishes a certified copy of the return showing the attempt on the agent and that neither the agent nor an officer was found at the registered office.
- 12 O.S. § 2004(C)(4)
- How the Secretary of State step runs
- Two copies of the summons and petition are filed with the Secretary of State, with notice that service is made under § 2004(C)(4) and the fee set by 18 O.S. § 1142(A)(7). Within three working days the Secretary of State sends notice by certified mail, return receipt requested, and the corporation’s answer is not due until 40 days after service on the Secretary of State. The step does not apply to a foreign insurance company doing business in Oklahoma.
- 12 O.S. § 2004(C)(4)
- Foreign corporations and LLCs
- A foreign corporation transacting business in Oklahoma keeps the Secretary of State as its registered agent; if it names an additional registered agent, service goes to that agent and not to the Secretary of State. One that transacts business without qualifying may be served through the Secretary of State under 12 O.S. § 2004. A foreign LLC with an additional registered agent is served on that agent; the Secretary of State takes service when there is no agent, the agent’s authority is revoked, or the agent cannot be found or served with reasonable diligence. A foreign LLC transacting business here without registering makes the Office of the Secretary of State its agent for claims arising from that business.
- 18 O.S. §§ 1022(B), 1136(A), 2043(3), 2048(C)
- Governments, the United States and inmates
- The United States, its officers and agencies are served as Federal Rule of Civil Procedure 4 specifies. A state, county, school district, public trust, municipal corporation or other governmental organization is served on the officer or individual a specific statute names; without one, on the chief executive officer or a clerk, secretary or other official who keeps the organization’s official records. An inmate in a Department of Corrections institution is served through the warden or superintendent or a designee; one in a jail or detention center, through its administrator or a designee.
- 12 O.S. § 2004(C)(1)(c)(4)–(7)
- Certified mail
- At the plaintiff’s election, the summons and petition may be mailed to an individual other than a child under 15 or an incompetent person, to a corporation, partnership or association, or to a state or local governmental body, by the plaintiff’s attorney, anyone authorized to serve process under § 2004(C)(1)(a), or the court clerk, by certified mail, return receipt requested, delivery restricted to the addressee. Service is effective on the date of receipt or, if refused, on the date of refusal. Acceptance or refusal by a resident 15 or older at the dwelling house or usual place of abode counts as the defendant’s; for a corporation, partnership or association, so does acceptance or refusal by an officer, or by an employee of the registered office or principal place of business who is authorized to receive or regularly receives certified mail.
- 12 O.S. § 2004(C)(2)
- Default after mail service
- Mail service supports a default only if the record holds a return receipt showing the defendant’s acceptance or a returned envelope showing refusal. After a refusal, at least 10 days before applying for default, the person chosen to serve mails the defendant, by first-class mail, a copy of the summons and petition and the plaintiff’s notice that the case will proceed despite the refusal. A default is set aside on the defendant’s motion under 12 O.S. § 1031.1 or petition under § 1033 if the defendant shows the court that the return receipt was signed, or delivery refused, by an unauthorized person; a petition must be filed within one year after the defendant has notice of the default, and no more than two years after the judgment is filed.
- 12 O.S. § 2004(C)(2)
- Publication
- Allowed when the verified petition, or a separate affidavit of the plaintiff or the plaintiff’s attorney, states that with due diligence the defendant cannot be served by any other method. A notice signed by the court clerk runs one day a week for three consecutive weeks in a newspaper authorized to publish legal notices in the county where the petition is filed, or, if no such newspaper is published there, in one of general circulation published in an adjoining county, with an answer date at least 41 days after the first publication. The affidavit of anyone with knowledge of the publication proves it, and no default judgment is entered until that proof is filed and approved, after the court inquires whether a distinct and meaningful search of all reasonably available sources was made. A party defaulted on publication alone may, within three years after the judgment is filed, have it set aside under 12 O.S. §§ 1031.1 and 1033 after notifying the adverse party, filing a full answer, paying costs if the court requires, and satisfying the court there was no actual notice of the action in time to defend; title passed to a good-faith purchaser is not affected.
- 12 O.S. § 2004(C)(3)
- Service as the court orders
- If service cannot be made by personal delivery or by mail, an individual other than a child under 15 or an incompetent person, or a corporation, partnership or unincorporated association, may be served as a court order provides, in a manner reasonably calculated to give actual notice and an opportunity to be heard, once the plaintiff or the plaintiff’s attorney files an affidavit that with due diligence service cannot otherwise be made. An acknowledgment on the back of the summons, or the defendant’s voluntary appearance, is equivalent to service.
- 12 O.S. § 2004(C)(5)–(6)
- Anywhere in Oklahoma, and beyond it
- The summons and petition may be served anywhere in Oklahoma. Oklahoma courts may exercise jurisdiction on any basis consistent with the Oklahoma and United States Constitutions, and where that reaches the defendant, service outside the state may be by personal delivery as within Oklahoma, as the law of the place provides for its own courts of general jurisdiction, by certified mail under § 2004(C)(2), as a foreign authority directs in response to a letter rogatory, by publication under § 2004(C)(3) only when its paragraphs (a) and (b) permit, or as the court directs. Where § 2004(C) requires designated individuals to be served, service outside the state is made on them. It may be made by anyone permitted to serve under Oklahoma law or the law of that place, or by an individual an Oklahoma court designates, and proved under § 2004(G), the order directing it, or the law of that place. Service in Oklahoma in connection with a proceeding in a tribunal outside the state may be made without an order of court.
- 12 O.S. § 2004(E)–(F)
- The affidavit of service
- When anyone other than a sheriff or deputy sheriff serves, an affidavit is made. The return sets out the county of issuance, the name of the person served, and the date, place and method of service; after mail service, the person mailing endorses on the summons copy filed in the case the date and place of mailing and the date service was receipted or rejected, and attaches a copy of the return receipt or returned envelope, if and when received, showing whether the mailing was accepted, refused or otherwise returned; if the mailing was refused, the return also shows the date and place of the follow-up first-class mailing. 12 O.S. § 158.1(G) points a license holder’s proof to the same affidavit.
- 12 O.S. §§ 2004(G)(2)–(3), 158.1(G)
- An unsworn statement in place of an affidavit
- Where Oklahoma law requires or permits a matter to be proved by affidavit, 12 O.S. § 426 lets it be proved with like force and effect by an unsworn written statement signed under penalty of perjury, stating the date and place of signing and that it is made under the laws of Oklahoma. The section does not reach depositions, oaths of office, oaths that must be taken before a specified official other than a notary public, or Title 26 oaths and affidavits.
- 12 O.S. § 426
- Deadline for the return, and fixing it
- Under § 2004(G)(1) the return reaches the court promptly, and no later than the end of the defendant’s time to respond; failing to make the return does not affect the validity of service. Under § 2004(H), the court may let the process or the return be amended unless that would clearly cause material prejudice to the substantial rights of the party served.
- 12 O.S. § 2004(G)(1), (H)
- The 180-day service deadline
- If a defendant is not served within 180 days after the petition is filed and the plaintiff has not shown good cause, the action is deemed dismissed without prejudice as to that defendant, and 12 O.S. § 100 applies to any refiling. On the application of a defendant not timely served, the court enters an order dismissing the action as to that defendant. The court enters a dismissal order within 200 days after filing in an action where no defendant has been served. Service made within 180 days that a court later holds invalid does not bring dismissal; after a summons or its service is quashed, a new summons may be served within a time the judge sets, and if it is not served within that time the action is deemed dismissed without prejudice as to that defendant. The rule does not apply to a defendant who has been outside Oklahoma for 180 days after the petition was filed.
- 12 O.S. § 2004(I)
- Counting the days
- The day of the event is not counted. The last day is, unless it is a legal holiday under 25 O.S. § 82.1 or a day the court clerk’s office does not stay open for public business until its regular closing time; then the period runs to the end of the next day that is neither. Except for times set in six listed sections of Title 12, a period under 11 days also leaves out intermediate legal holidays and other days the clerk’s office does not stay open until its regular closing time. For cause shown, the court may enlarge a period on a request made before it expires, or, on motion after it expires, where the failure to act was excusable neglect; it may not extend the time to appeal, to seek a new trial or judgment notwithstanding the verdict, or to correct, open, modify, vacate or reconsider a judgment, except as the sections governing those proceedings provide.
- 12 O.S. § 2006(A)–(B)
- Oklahoma legal holidays
- 25 O.S. § 82.1 lists each Saturday and Sunday, New Year’s Day, Martin Luther King, Jr.’s Birthday, Presidents’ Day, Memorial Day, Independence Day, Labor Day, Veterans’ Day, Thanksgiving Day and the day after, and Christmas. Christmas carries an extra day or two: the day before or after when it falls on a weekday, the Thursday and Friday before when it falls on a Saturday, and the Monday and Tuesday after when it falls on a Sunday. Any other holiday falling on a Saturday is observed the Friday before, and one falling on a Sunday the Monday after. The Governor’s yearly Executive Order sets the dates, and an act due on a holiday may be done on the next business day with no loss of rights.
- 25 O.S. § 82.1(A)–(C)
- Answer time and service defenses
- Unless another time is set by law, a defendant answers within 20 days after service of the summons and petition. A reservation of time extends that by 20 days from the last day for answering, and the party requesting the summons may elect a 35-day answer time in place of 20. Insufficiency of service of process may be raised by motion; it is waived if left out of a motion raising other defenses that may be made by motion, or if it is neither made by motion nor included in a responsive pleading or an amendment allowed as a matter of course, and filing a reservation of time waives it too.
- 12 O.S. § 2012(A)–(B), (F)
- Serving a subpoena
- A subpoena issues from the court where the action is pending and may be served anywhere in Oklahoma. It is served by delivering or mailing a copy to the person named and, where attendance is demanded, tendering the fees for one day’s attendance and the mileage allowed by law; 28 O.S. § 81 sets the per-day fee plus travel at no more than state-employee rates, and in civil cases the first day’s fee is paid under § 2004.1. Mail service is certified, return receipt requested, delivery restricted to the person named. A subpoena for documents or an inspection before trial is also served on each party, and one served on a nonparty for production alone sets a date at least seven days after service on the witness and all parties.
- 12 O.S. § 2004.1(A)(2), (B); 28 O.S. § 81
- Proof of subpoena service
- The person serving makes proof of service to the court promptly, and in any event before the witness must testify; anyone other than a sheriff or deputy sheriff makes an affidavit. Missing proof does not affect valid service, but mail service of a subpoena is not effective unless the person named accepted the mailing.
- 12 O.S. § 2004.1(B)(2)
- Out-of-state subpoenas
- Oklahoma adopted the Uniform Interstate Depositions and Discovery Act at 12 O.S. §§ 3250–3257, and its definition of a state includes a federally recognized Indian tribe. A party submits the foreign subpoena to a clerk of court in the county where discovery is sought, which is not an appearance in Oklahoma courts, and the clerk promptly issues a subpoena that incorporates the foreign subpoena’s terms and names all counsel of record and any unrepresented party with addresses and telephone numbers. It is served under 12 O.S. § 2004.1(B), and an application for a protective order, or to enforce, quash or modify it, goes to the court in the county where discovery is conducted. For an action pending outside Oklahoma, § 2004.1(A)(2) has the district court of the county where a deposition is to be taken issue the subpoena, and the district court of the county where production or inspection is to be made issue a subpoena for production or inspection. A person seeking an order in aid of that discovery, or aggrieved by such a subpoena, may obtain judicial assistance or review by filing a civil action and paying the required fees.
- 12 O.S. §§ 3250–3255, 2004.1(A)(2)
Rules current as of October 2026, from the official texts listed below. 12 O.S. §§ 158.1, 158.2, 426, 2004, 2004.1, 2006, 2012 and 3250 to 3257; 18 O.S. §§ 1022, 1136, 2010, 2043 and 2048; 25 O.S. § 82.1; and 28 O.S. § 81, as published by the Oklahoma Legislature. General information, not legal advice. The official text controls.
