| Year | Medal | Brew | Brewery | Location |
|---|---|---|---|---|
| 1996 | Gold | Zoser Oatmeal Stout | Oasis Brewery | Boulder, Colorado |
| Silver | Blue Ridge Steeple Stout | Frederick Brewing Company | Frederick, Maryland | |
| Bronze | Classic Oatmeal Stout | Gray Brewing | Janesville, Wisconsin | |
| 1998 | Gold | Milly's Oatmeal Stout | Stark Mill Brewery | Manchester, New Hampshire |
| Silver | Oatmeal Stout | La Brasserie McAuslan | Montreal, Quebec | |
| Bronze | Zoser Oatmeal Stout | Oasis Brewery | Boulder, Colorado | |
| 2000 | Gold | Oscar's Chocolate Oatmeal Stout | Pioneer Brewing Company | Black River Falls, Wisconsin |
| Silver | Zoser Oatmeal Stout | Oasis Brewery | Boulder, Colorado | |
| Bronze | Sinner's Stout | Angelic Brewing Company | Madison, Wisconsin | |
| 2002 | Gold | Stout | Alaskan Brewing Company | Juneau, Alaska |
| Silver | Stonefly Oatmeal Stout | Third Street Aleworks | Santa Rosa, California | |
| Bronze | Sinner's Stout | Angelic Brewing Company | Madison, Wisconsin | |
| 2004 | Gold | Oatmeal Stout | Troy Brewing Company | Troy, New York |
| Silver | Barney Flats Oatmeal Stout | Anderson Valley Brewing Company | Boonville, California | |
| Bronze | Sierra Nevada Stout | Sierra Nevada Brewing Company | Chico, California | |
| 2006 | Gold | Strom Bomb Stout | Bottoms Up Brewing Company | Pinedale, Wyoming |
| Silver | The Poet | New Holland Brewing Company | Holland, Michigan | |
| Bronze | Blackbird Stout | Hereford & Hops Brewpub | Wausau, Wisconsin | |
| 2008 | Gold | Sless' Stimulating Stout | Iron Springs Pub & Brewery | Fairfax, California |
| Silver | Sleeping Dog Oatmeal Stout | Chama River Brewing Company | Albuquerque, New Mexico | |
| Bronze | Velvet Mirkin | Firestone Walker Fine Ales | Paso Robles, California |