The OKC Dodgers have already been mentioned, but I started watching AAA minor league baseball in Oklahoma City with the OKC 89ers.
Before the city built the beautiful and spacious downtown Mickey Mantel Chickasaw Bricktown Ball Park, the franchise played at the old fairgrounds All Sports stadium.
Major League Affiliations:
1962-1964: Houston Colt .45s
1965-1972: Houston Astros
1973-1975: Cleveland Indians
1976-1982: Philadelphia Phillies
1983-1998: Texas Rangers
Rebranded the "Red Hawks" in 1998, after a failed NHL bid by the city, resulted in millions of dollars of "RedHawk" branded memorabilia, which was converted to use by the baseball franchise owners.
1962-????: Oklahoma City All Sports Association (Jim Roederer, et al.)
1971-1973: Phil Dixon
1974-1975: Bus Horton
1976-1978: Harry Valentine
1978-1989: Patty Cox Hampton & Bing Hampton, et al.
1990-1993: Jeffrey Loria, Marv Goldklang, Bobby Murcer, et al.
1993-1998: Ed Gaylord, Bill Mathis, Larry Mathis, et al.
American Association Champions: 1992 & 1996
Pacific Coast League Champions: 1963 & 1965
1971 - OKC All Sports Stadium (safety nets? What safety nets? We don't need no stinkin' safety nets!)
Chickasaw Bricktown Ball Park - opened 1998