List of Oakland Athletics minor league affiliates

The Oakland Athletics farm system consists of seven minor league affiliates. This list documents the history of their minor league affiliates since from 1923.

1963 to present

Year	Triple-A	Double-A	A-Advanced	A	Short-Season A	Rookie	Foreign Rookie
2016	Nashville Sounds	Midland RockHounds	Stockton Ports	Beloit Snappers	Vermont Lake Monsters	AZL Athletics	DSL Athletics
2015	Nashville Sounds	Midland RockHounds	Stockton Ports	Beloit Snappers	Vermont Lake Monsters	AZL Athletics	DSL Athletics
2014	Sacramento River Cats	Midland RockHounds	Stockton Ports	Beloit Snappers	Vermont Lake Monsters	AZL Athletics	DSL Athletics
2013	Sacramento River Cats	Midland RockHounds	Stockton Ports	Beloit Snappers	Vermont Lake Monsters	AZL Athletics	DSL Athletics
2012	Sacramento River Cats	Midland RockHounds	Stockton Ports	Burlington Bees	Vermont Lake Monsters	AZL Athletics	DSL Athletics
2011	Sacramento River Cats	Midland RockHounds	Stockton Ports	Burlington Bees	Vermont Lake Monsters	AZL Athletics	DSL Athletics
2010	Sacramento River Cats	Midland RockHounds	Stockton Ports	Kane County Cougars	Vancouver Canadians	AZL Athletics	DSL Athletics
2009	Sacramento River Cats	Midland RockHounds	Stockton Ports	Kane County Cougars	Vancouver Canadians	AZL Athletics	DSL Athletics
2008	Sacramento River Cats	Midland RockHounds	Stockton Ports	Kane County Cougars	Vancouver Canadians	AZL Athletics	DSL Athletics 1 & 2
2007	Sacramento River Cats	Midland RockHounds	Stockton Ports	Kane County Cougars	Vancouver Canadians	AZL Athletics	DSL Athletics 1 & 2
2006	Sacramento River Cats	Midland RockHounds	Stockton Ports	Kane County Cougars	Vancouver Canadians	AZL Athletics	DSL Athletics 1 & 2
2005	Sacramento River Cats	Midland RockHounds	Stockton Ports	Kane County Cougars	Vancouver Canadians	AZL Athletics	DSL Athletics 1 & 2
2004	Sacramento River Cats	Midland RockHounds	Modesto A's	Kane County Cougars	Vancouver Canadians	AZL Athletics	DSL Athletics 1 & 2
2003	Sacramento River Cats	Midland RockHounds	Modesto A's	Kane County Cougars	Vancouver Canadians	AZL Athletics	DSL Athletics 1 & 2
2002	Sacramento River Cats	Midland RockHounds	Modesto A's Visalia Oaks	Kane County Cougars	Vancouver Canadians	AZL Athletics	DSL Athletics East & West
2001	Sacramento River Cats	Midland RockHounds	Modesto A's Visalia Oaks	—	Vancouver Canadians	AZL Athletics	DSL Athletics East & West
2000	Sacramento River Cats	Midland RockHounds	Modesto A's Visalia Oaks	—	Vancouver Canadians	AZL Athletics	DSL Athletics East & West
1999	Vancouver Canadians	Midland RockHounds	Modesto A's Visalia Oaks	—	Southern Oregon Timberjacks	AZL Athletics	DSL Athletics East & West
1998	Edmonton Trappers	Huntsville Stars	Modesto A's Visalia Oaks	—	Southern Oregon Timberjacks	AZL Athletics	DSL Athletics East & West
1997	Edmonton Trappers	Huntsville Stars	Modesto A's Visalia Oaks	—	Southern Oregon Timberjacks	AZL Athletics	DSL Athletics East & West
1996	Edmonton Trappers	Huntsville Stars	Modesto A's	West Michigan Whitecaps	Southern Oregon Timberjacks	AZL Athletics	DSL Athletics
1995	Edmonton Trappers	Huntsville Stars	Modesto A's	West Michigan Whitecaps	Southern Oregon A's	AZL Athletics	DSL Athletics
1994	Tacoma Tigers	Huntsville Stars	Modesto A's	West Michigan Whitecaps	Southern Oregon A's	AZL Athletics	DSL Athletics
1993	Tacoma Tigers	Huntsville Stars	Modesto A's	Madison Muskies	Southern Oregon A's	AZL Athletics	DSL Athletics
1992	Tacoma Tigers	Huntsville Stars	Modesto A's	Madison Muskies	Southern Oregon A's	AZL Athletics	DSL Athletics
1991	Tacoma Tigers	Huntsville Stars	Modesto A's	Madison Muskies	Southern Oregon A's	AZL Athletics	DSL Athletics
1990	Tacoma Tigers	Huntsville Stars	Modesto A's	Madison Muskies	Southern Oregon A's	AZL Athletics	DSL Athletics
1989	Tacoma Tigers	Huntsville Stars	—	Modesto A's Madison Muskies	Southern Oregon A's	AZL Athletics	DSL Athletics
1988	Tacoma Tigers	Huntsville Stars	—	Modesto A's Madison Muskies	Southern Oregon A's	AZL Athletics	—
1987	Tacoma Tigers	Huntsville Stars	—	Modesto A's Madison Muskies	Medford A's	—	—
1986	Tacoma Tigers	Huntsville Stars	—	Modesto A's Madison Muskies	Medford A's	—	—
1985	Tacoma Tigers	Huntsville Stars	—	Modesto A's Madison Muskies	Medford A's	Pocatello Gems	—
1984	Tacoma Tigers	Albany-Colonie A's	—	Modesto A's Madison Muskies	Medford A's	Idaho Falls A's	—
1983	Tacoma Tigers	Albany A's	—	Modesto A's Madison Muskies	Medford A's	Idaho Falls A's	—
1982	Tacoma Tigers	West Haven A's	—	Modesto A's Madison Muskies	Medford A's	Idaho Falls A's	—
1981	Tacoma Tigers	West Haven A's	—	Modesto A's	Medford A's	—	—
1980	Ogden A's	West Haven Whitecaps	—	Modesto A's	Medford A's	—	—
1979	Ogden A's	Waterbury A's	—	Modesto A's	Medford A's	—	—
1978	Vancouver Canadians	Jersey City A's	—	Modesto A's	Bend Timber Hawks	—	—
1977	San Jose Missions	Chattanooga Lookouts	—	Modesto A's	—	Medicine Hat A's	—
1976	Tucson Toros	Chattanooga Lookouts	—	Modesto A's	Boise A's	—	—
1975	Tucson Toros	Birmingham A's	—	Modesto A's	Boise A's	—	—
1974	Tucson Toros	Birmingham A's	—	Burlington Bees	Lewiston Broncs	—	—
1973	Tucson Toros	Birmingham A's	—	Burlington Bees	Lewiston Broncs	—	—
1972	Iowa Oaks	Birmingham A's	—	Burlington Bees	Coos Bay-North Bend A's	—	—
1971	Iowa Oaks	Birmingham A's	—	Burlington Bees	Coos Bay-North Bend A's	—	—
1970	Iowa Oaks	Birmingham A's	—	Burlington Bees	Coos Bay-North Bend A's	—	—
1969	Iowa Oaks	Birmingham A's	—	Burlington Bees Lodi Crushers	Tri-City A's	—	—
1968	Vancouver Mounties	Birmingham A's	—	Burlington Bees Leesburg Athletics Peninsula Grays	—	GCL Athletics	—
1967	Vancouver Mounties	Birmingham A's	—	Burlington Bees Leesburg Athletics Peninsula Grays	—	GCL Athletics	—
1966	Vancouver Mounties	Mobile A's	—	Burlington Bees Leesburg Athletics Modesto Reds	Lewiston Broncs	—	—
1965	Vancouver Mounties	Birmingham Barons	—	Lewiston Broncs Burlington Bees Leesburg Athletics Shelby Rebels	—	—	—
1964	Dallas Rangers	Birmingham Barons	—	Lewiston Broncs Daytona Beach Islanders Burlington Bees	—	Wytheville A's	—
1963	Portland Beavers	Binghamton Triplets	—	Lewiston Broncs Daytona Beach Islanders Burlington Bees	—	—	—

1902 to 1962

Organized baseball reclassified its minor league system prior to the 1963 season. The classification of leagues as B, C, D, and E changed to the current A-based rankings: Triple-A, Double-A, A-Advanced, Class A, Short-Season A, and Rookie. Many leagues were reclassified. Class D would be equivalent to the Rookie level today.

Year	Triple-A	Double-A	A	B	C	D
1962	Portland Beavers	Albuquerque Dukes	Binghamton Triplets	Lewiston Broncs	Minot Mallards	Daytona Beach Islanders
1961	Hawaii Islanders	Shreveport Sports	Portsmouth-Norfolk Tides	Lewiston Broncs	Visalia A's	Albuquerque Dukes Sarasota Sun Sox
1960	Dallas-Fort Worth Rangers	Shreveport Sports	—	Sioux City Soos Lewiston Broncs	Visalia A's	Albuquerque Dukes Sanford Greyhounds
1959	Portland Beavers	Shreveport Sports	Albany Senators	Sioux City Soos	Pocatello A's	Grand Island A's Plainview A's Olean A's
1958	Buffalo Bisons	Little Rock Travelers	Albany Senators	Rochester/Winona A's	Pocatello A's	Grand Island A's Plainview A's Selma Cloverleafs
1957	Buffalo Bisons	Little Rock Travelers	Columbia Gems	Abilene Blue Sox	Pocatello A's Crowley Millers	Seminole Oilers Grand Island A's Mattoon Athletics
1956	Columbus Jets	—	Columbia Gems	Abilene Blue Sox	Pocatello Bannocks Crowley Millers	Seminole Oilers Fitzgerald A's Grand Island A's
1955	Columbus Jets	—	Savannah Athletics	Lancaster Red Roses Hot Springs Bathers	Burlington A's	Welch Miners/Marion A's Seminole Oilers
1954	Ottawa Athletics	—	Savannah Athletics	Lancaster Red Roses	Drummondville A's	Hopkinsville Hoppers Welch Miners
1953	Ottawa Athletics	—	Savannah Indians Williamsport A's	Fayetteville Highlanders	St. Hyacinthe A's	Cordele A's Hopkinsville Hoppers Welch Miners
1952	Ottawa Athletics	—	Savannah Indians Lincoln A's	Fayetteville A's Harrisburg Senators	St. Hyacinthe A's	Lexington Indians Cordele A's Corning A's
1951	—	—	Savannah Indians Lincoln A's	Fayetteville A's Salisbury A's	Rome Colonels	Lexington Indians Cordele A's Corning A's
1950	Buffalo Bisons	—	Savannah Indians Lincoln A's	Fayetteville A's Sunbury A's West Palm Beach Indians	Youngstown A's	Lexington A's Red Springs Red Robins Welch Miners Portsmouth A's Tarboro A's Cordele A's
1949	—	—	Savannah Indians Lincoln A's	Martinsville A's	Kewanee A's Youngstown A's	Lexington A's Red Springs Red Robins Welch Miners Portsmouth A's Moultrie A's Tarboro A's
1948	—	—	Savannah Indians Lincoln A's	—	Martinsville A's Moline/Kewanee A's	Lexington A's Federalsburg A's Red Springs Red Robins Welch Miners Portsmouth A's Moultrie A's
1947	—	Birmingham Barons	Savannah Indians Lincoln A's	Lancaster Red Roses	Martinsville A's Moline A's Niagara Falls Frontiers	Lexington A's Federalsburg A's Nyack Rocklands Red Springs Red Robins Welch Miners
1946	Toronto Maple Leafs	—	Savannah Indians	Lancaster Red Roses	Martinsville A's Kingston Ponies	Lexington A's Federalsburg A's
1945	—	Toronto Maple Leafs	—	Lancaster Red Roses	Martinsville A's	Lexington A's
1944	—	—	Elmira Pioneers	Lancaster Red Roses	—	—
1943	—	—	Elmira Pioneers	Wilmington Blue Rocks	—	—
1942	—	—	Williamsport Grays	Wilmington Blue Rocks	Newport News Builders	—
1941	—	Toronto Maple Leafs	Williamsport Grays	Wilmington Blue Rocks	Newport News Pilots	Federalsburg A's
1940	—	Toronto Maple Leafs	Williamsport Grays	Wilmington Blue Rocks	—	Federalsburg A's
1939	—	—	Williamsport Grays	—	—	Federalsburg A's Lexington Indians Abbeville A's
1938	—	—	Williamsport Grays	—	—	Federalsburg A's Lexington Indians
1937	—	—	Williamsport Grays	—	—	Federalsburg A's
1936	—	—	Williamsport Grays	Richmond Colts	Cleveland A's	—
1935	—	—	Williamsport Grays	Richmond Colts	—	—
1934	—	—	Williamsport Grays	—	—	—
1933	—	—	Williamsport Grays	—	—	—
1932	—	Portland Beavers	—	—	—	—
1924	—	—	Shreveport Gassers	—	—	—
1923	—	—	Shreveport Gassers	—	—	—

External links

• Oakland Athletics Minor League Affiliates
• Baseball-Reference: Oakland Athletics League Affiliations
• BR Bullpen: Oakland Athletics Minor League Affiliates