Type	Name	Date
Indenture	Indenture, between Tucson Electric Power Company and U.S. Bank National Association, as trustee	11/08/2011
Credit agreement	Credit Agreement, among UNS Electric, Inc., UniSource Energy Services, Inc., and Union Bank, N.A., as Administrative Agent and lender	08/12/2011
Credit agreement	Second Amended and Restated Credit Agreement, among UniSource Energy Corporation, Union Bank, N.A., as Administrative Agent, and a group of lenders	11/15/2010
Credit agreement	Second Amended and Restated Credit Agreement, among Tucson Electric Power Company, Union Bank, N.A., as Administrative Agent, and a group of lenders	11/15/2010
Credit agreement	Second Amended and Restated Credit Agreement, among UNS Electric, Inc., UNS Gas, Inc., UniSource Energy Services, Inc., Union Bank, N.A., as Administrative Agent, and a group of lenders	11/15/2010