Oklahoma-Arkansas-Kansas (OAK) League
| Class D | 1907 |
This league is the predecessor to the Oklahoma-Kansas League.
Teams (in alphabetical order)
Bartlesville Boosters, 1907
Coffeyville Glassblowers, 1907
Fort Smith Soldiers, 1907
Independence Champs, 1907
McAlester Miners, 1907
Muskogee Redskins, 1907
Parsons Preachers, 1907
Tulsa Oilers, 1907