Prior to the start of the 1932 season, Najo was traded to the Tulsa Oilers of the Western League. Baseball historians believe that Najo's contributions to this historic Tulsa team are an important reason it having been named one of Minor League Baseball's 100 best teams of all time. Baseball historians Bill Weiss and Marshall Wright wrote, "The 1932 Tulsa Oilers were a one-season wonder, entering and exiting the Western League in a short few months. However, despite their brief stay, the team left a lasting legacy, finishing with the top winning percentage (.671) in league history... Center fielder Leo Najo, who hit .323, was one of the first Mexican players in Organized Baseball. Najo, a native La Lajilla, Nuevo Leon, had a career average of.321 in 1,318 games, mostly with San Antonio and Omaha."