Here's the top 80 as of the end of 2005: Which also includes when they were in Philadelphia (1901-1954) and Kansas City (1955-1967). OAKLAND A'S SEASON RBI YEAR RBI 1 Jimmie Foxx 1932 169 2 Al Simmons 1930 165 3 Jimmie Foxx 1933 163 4 Al Simmons 1929 157 5 Jimmie Foxx 1930 156 6 Al Simmons 1932 151 7 Jason Giambi 2000 137 8 Miguel Tejada 2002 131 T9 Home Run Baker 1912 130 T9 Jimmie Foxx 1934 130 11 Al Simmons 1925 129 12 Al Simmons 1931 128 T13 Gus Zernial 1951 125 T13 Nap Lajoie 1901 125 15 Jose Canseco 1988 124 16 Jason Giambi 1999 123 17 Jose Canseco 1991 122 18 Bob Johnson 1936 121 T19 Jason Giambi 2001 120 T19 Jimmie Foxx 1931 120 T19 Hank Majeski 1948 120 T22 Mark McGwire 1987 118 T22 Dave Kingman 1984 118 T22 Reggie Jackson 1969 118 T25 Jimmie Foxx 1929 117 T25 Jose Canseco 1986 117 T25 Reggie Jackson 1973 117 T25 Norm Siebern 1962 117 T25 Home Run Baker 1913 117 T30 Home Run Baker 1911 115 T30 Joe Hauser 1924 115 T30 Jimmie Foxx 1935 115 T30 Miguel Tejada 2000 115 T34 Bob Johnson 1939 114 T34 Eric Chavez 2001 114 T36 Bob Johnson 1938 113 T36 Jose Canseco 1987 113 T36 Mark McGwire 1996 113 T36 Miguel Tejada 2001 113 T36 Sal Bando 1969 113 41 Mickey Cochrane 1932 112 42 John Jaha 1999 111 43 Jason Giambi 1998 110 T44 Bob Johnson 1935 109 T44 Al Simmons 1926 109 T44 Tony Armas 1980 109 T44 Eric Chavez 2002 109 T48 Sam Chapman 1949 108 T48 Bob Johnson 1937 108 T48 Gus Zernial 1953 108 T48 Mark McGwire 1990 108 T48 Lave Cross 1902 108 T48 Al Simmons 1927 108 T54 Bob Johnson 1941 107 T54 Al Simmons 1928 107 T56 Matt Stairs 1998 106 T56 Sam Chapman 1941 106 T56 Geronimo Berroa 1996 106 T56 Miguel Tejada 2003 106 60 Harry Simpson 1956 105 T61 Mark McGwire 1992 104 T61 Reggie Jackson 1975 104 T61 Ben Grieve 2000 104 T61 Bob Cerv 1958 104 T65 Bob Johnson 1940 103 T65 Sal Bando 1974 103 T67 Matt Stairs 1999 102 T67 Rocky Colavito 1964 102 T67 Al Simmons 1924 102 T67 Eddie Robinson 1953 102 T71 Stuffy McInnis 1912 101 T71 Eric Chavez 2003 101 T71 Tilly Walker 1921 101 T71 Eric Chavez 2005 101 T71 Jose Canseco 1990 101 T71 Ruben Sierra 1993 101 T77 Bing Miller 1930 100 T77 Terry Steinbach 1996 100 T77 Gus Zernial 1952 100 T80 Joe Rudi 1974 99 T80 Tilly Walker 1922 99 T80 Mark McGwire 1988 99 T80 Mike Higgins 1933 99