10/1/2004: Notice on Rapid City DC Tie

No capacity is available across Rapid City DC Tie (RDC) in either direction (East to West or West to East).

Basin Electric Power Cooperative Power Marketing Division and Black Hills Power, Inc., Marketing Division have

firm rights on RDC which at times might be available to market participants for resale.

For availability and price information please contact: Black Hills Real-Time Merchant at (605) 721-2207

4/1/2004: Notice on Pre-confirm Flag:

OASIS Requests need not to be Pre-Confirmed. Selecting Pre-confirm flag is optional.