X0101 EFFECT 33 LIVE 2010-11-26 0000728889-10-001739 485APOS 0000853593 OPPENHEIMER MULTI-STATE MUNICIPAL TRUST 033-30198 S000007296 Oppenheimer Rochester National Municipals C000020050 A S000007296 Oppenheimer Rochester National Municipals C000020051 B S000007296 Oppenheimer Rochester National Municipals C000020052 C S000007296 Oppenheimer Rochester National Municipals C000096813 Y