0001130464-08-000148 Sample Contracts

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, 2008
Purchase 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.