Okla. Stat. tit. 54, § 1-1002
The name of a limited liability partnership must end with "Registered Limited Liability Partnership", "Limited Liability Partnership", "R.L.L.P.", "L.L.P.", RLLP", or "LLP".
Laws 1997, SB 483, c. 399, § 56, eff. November 1, 1997.