| Providers on SPP OASIS |
| Provider Code | Provider Name |
| CSWS | Central and South West Services, Inc. |
| EDE | Empire District Electric Company (The) |
| GRDA | Grand River Dam Authority |
| KCPL | Kansas City Power & Light Company |
| MIDW | Midwest Energy, Inc. |
| MPS | Missouri Public Service |
| OKGE | Oklahoma Gas & Electric |
| SWPP | Southwest Power Pool |
| SPA | Southwestern Power Administration |
| SPS | Southwestern Public Service Company |
| SECI | Sunflower Electric Corporation |
| WFEC | Western Farmers Electric Cooperative |
| WR | Western Resources Inc. |
| WPEK | WestPlains Energy - Kansas |