Okla. Stat. tit. 54, § 54-500-117A: Service of process

SERVICE OF PROCESS.

(a) An agent for service of process appointed by a limited

partnership or foreign limited partnership is an agent of the

limited partnership or foreign limited partnership for service of

any process, notice, or demand required or permitted by law to be

served upon the limited partnership or foreign limited partnership.

(b) If a limited partnership or foreign limited partnership

does not appoint or maintain an agent for service of process in this

state or the agent for service of process cannot with reasonable

diligence be found at the agent’s address, the Secretary of State is

an agent of the limited partnership or foreign limited partnership

upon whom process, notice, or demand may be served. The Secretary

of State shall charge the fee prescribed by Section 24 of this act

for acting as registered agent.

(c) Service of any process, notice, or demand on the Secretary

of State may be made as provided in Section 2004 of Title 12 of the

Oklahoma Statutes.