PURCHASE AND SALE AGREEMENT BY AND BETWEEN BLACK HILLS GENERATION, INC., as SELLER, and SOUTHWEST GENERATION OPERATING COMPANY, LLC, as BUYER Dated as of April 29, 2008Purchase and Sale Agreement • May 1st, 2008 • Black Hills Corp /Sd/ • Electric services • New York
**The Exhibits and Schedules have been omitted but will be furnished to the Securities and Exchange Commission upon request.
