0000950123-10-071648 Sample Contracts

Otter Tail Corporation Amendment No. 4 Dated as of July 29, 2010 to Note Purchase Agreement Dated as of February 23, 2007 Re: $50,000,000 Senior Note due November 30, 2017

Note Purchase Agreement • August 3rd, 2010 • Otter Tail Corp • Electric services • New York

• Contract Type
  Note Purchase Agreement
• Filed
  August 3rd, 2010
• Company
  Otter Tail Corp
• Industry
  Electric services
• Jurisdiction
  New York

This Amendment dated as of July 29, 2010 and made effective as of June 30, 2010 (the or this “Amendment”) to the Note Purchase Agreement dated as of February 23, 2007 is between Otter Tail Corporation, a Minnesota corporation (the “Company”), and Cascade Investment, L.L.C. (“Cascade”).