Type	Name	Date
Credit agreement	FIFTH AMENDED AND RESTATED CREDIT AGREEMENT	11/01/2022
Credit agreement	FOURTH AMENDED AND RESTATED CREDIT AGREEMENT	11/01/2022
Credit agreement	FOURTH AMENDED AND RESTATED CREDIT AGREEMENT	10/04/2021
Credit agreement	THIRD AMENDED AND RESTATED CREDIT AGREEMENT	10/04/2021
Credit agreement	Sixth Amendment to Third Amended and Restated Credit Agreement, among Otter Tail Corporation, U.S. Bank National Association, as Administrative Agent and as a Bank, Bank of America, N.A. and JPMorgan Chase Bank, N.A., each as a Co-Syndication Agent and as a Bank, KeyBank National Association, as Documentation Agent and as a Bank, and Bank of the West as a Bank	11/06/2018
Credit agreement	Sixth Amendment to Second Amended and Restated Credit Agreement, among Otter Tail Power Company, U.S. Bank National Association, as Administrative Agent and as a Bank, Bank of America, N.A. and JPMorgan Chase Bank, N.A., each as a Co-Syndication Agent and as a Bank, KeyBank National Association, as Documentation Agent and as a Bank, CoBank, ACB, as a Co-Documentation Agent and as a Bank, and Wells Fargo Bank, National Association as a Bank	11/06/2018
Credit agreement	Fifth Amendment to Third Amended and Restated Credit Agreement, among Otter Tail Corporation, U.S. Bank National Association, as Administrative Agent and as a Bank, Bank of America, N.A. and JPMorgan Chase Bank, N.A., each as a Co-Syndication Agent and as a Bank, KeyBank National Association, as Documentation Agent and as a Bank, and Bank of the West as a Bank	11/02/2017
Credit agreement	Fifth Amendment to Second Amended and Restated Credit Agreement, among Otter Tail Power Company, U.S. Bank National Association, as Administrative Agent and as a Bank, Bank of America, N.A. and JPMorgan Chase Bank, N.A., each as a Co-Syndication Agent and as a Bank, KeyBank National Association, as Documentation Agent and as a Bank, CoBank, ACB, as a Co-Documentation Agent and as a Bank, and Wells Fargo Bank, National Association as a Bank	11/02/2017
Credit agreement	Fourth Amendment to Third Amended and Restated Credit Agreement, among Otter Tail Corporation, U.S. Bank National Association, as Administrative Agent and as a Bank, Bank of America, N.A. and JPMorgan Chase Bank, N.A., each as a Co-Syndication Agent and as a Bank, KeyBank National Association, as Documentation Agent and as a Bank, and Bank of the West as a Bank	11/03/2016
Credit agreement	Fourth Amendment to Second Amended and Restated Credit Agreement, among Otter Tail Power Company, U.S. Bank National Association, as Administrative Agent and as a Bank, Bank of America, N.A. and JPMorgan Chase Bank, N.A., each as a Co-Syndication Agent and as a Bank, KeyBank National Association, as Documentation Agent and as a Bank, CoBank, ACB, as a Co-Documentation Agent and as a Bank, and Wells Fargo Bank, National Association as a Bank	11/03/2016
Credit agreement	Third Amendment to Third Amended and Restated Credit Agreement, among Otter Tail Corporation, U.S. Bank National Association, as Administrative Agent and as a Bank, Bank of America, N.A. and JPMorgan Chase Bank, N.A., each as a Co-Syndication Agent and as a Bank, KeyBank National Association, as Documentation Agent and as a Bank, and Bank of the West as a Bank	11/03/2015
Credit agreement	Third Amendment to Second Amended and Restated Credit Agreement, among Otter Tail Power Company, U.S. Bank National Association, as Administrative Agent and as a Bank, Bank of America, N.A. and JPMorgan Chase Bank, N.A., each as a Co-Syndication Agent and as a Bank, KeyBank National Association, as Documentation Agent and as a Bank, CoBank, ACB, as a Co-Documentation Agent and as a Bank, and Wells Fargo Bank, National Association as a Bank	11/03/2015
Credit agreement	Second Amendment to Third Amended and Restated Credit Agreement, among Otter Tail Corporation, U.S. Bank National Association, as Administrative Agent and as a Bank, Bank of America, N.A. and JPMorgan Chase Bank, N.A., each as a Co-Syndication Agent and as a Bank, KeyBank National Association, as Documentation Agent and as a Bank, and Bank of the West as a Bank	11/04/2014
Credit agreement	Second Amendment to Second Amended and Restated Credit Agreement, among Otter Tail Power Company, U.S. Bank National Association, as Administrative Agent and as a Bank, Bank of America, N.A. and JPMorgan Chase Bank, N.A., each as a Co-Syndication Agent and as a Bank, KeyBank National Association, as Documentation Agent and as a Bank, CoBank, ACB, as a Co-Documentation Agent and as a Bank, and Wells Fargo Bank, National Association as a Bank	11/04/2014
Credit agreement	First Amendment to Third Amended and Restated Credit Agreement, among Otter Tail Corporation, U.S. Bank National Association, as Administrative Agent and as a Bank, Bank of America, N.A. and JPMorgan Chase Bank, N.A., each as a Co-Syndication Agent and as a Bank, KeyBank National Association, as Documentation Agent and as a Bank, and Bank of the West and Union Bank, N.A., as Banks	11/01/2013
Credit agreement	First Amendment to Second Amended and Restated Credit Agreement, among Otter Tail Power Company, U.S. Bank National Association, as Administrative Agent and as a Bank, Bank of America, N.A. and JPMorgan Chase Bank, N.A., each as a Co-Syndication Agent and as a Bank, KeyBank National Association, as Documentation Agent and as a Bank, CoBank, ACB, as a Co-Documentation Agent and as a Bank, and Wells Fargo Bank, National Association and Union Bank, N.A., as Banks	11/01/2013
Credit agreement	First Amendment to Credit Agreement, between Otter Tail Power Company and JPMorgan Chase Bank, N.A	11/01/2013
Credit agreement	Credit Agreement between Otter Tail Power Company and JPMorgan Chase Bank, N.A	03/07/2013
Credit agreement	Third Amended and Restated Credit Agreement among Otter Tail Corporation, the Banks named therein, Bank of America, N.A. and JPMorgan Chase Bank, N.A., as Co-Syndication Agents, KeyBank National Association, as Documentation Agent, U.S. Bank National Association, as administrative agent for the Banks and U.S. Bank National Association, Merrill Lynch, Pierce, Fenner & Smith Incorporated and J.P. Morgan Securities LLC, as Joint Lead Arrangers and Joint Book Runners	11/02/2012
Credit agreement	Second Amended and Restated Credit Agreement among Otter Tail Power Company, the Banks named therein, JPMorgan Chase Bank, N.A. and Bank of America, N.A., as Co-Syndication Agents, KeyBank National Association and CoBank, ACB, as Co-Documentation Agents, U.S. Bank National Association, as administrative agent for the Banks, and U.S. Bank National Association, Merrill Lynch, Pierce, Fenner & Smith Incorporated and J.P. Morgan Securities LLC, as Joint Lead Arrangers and Joint Book Runners	11/02/2012
Credit agreement	Amended and Restated Credit Agreement among Otter Tail Power Company, the Banks named therein, JPMorgan Chase Bank, N.A. and Bank of America, N.A., as Syndication Agents, KeyBank National Association and CoBank, ACB, as Documentation Agents, and U.S. Bank National Association, as administrative agent for the Banks	03/08/2011
Credit agreement	Second Amended and Restated Credit Agreement, by and between Otter Tail Corporation, the Banks named therein, U.S. Bank National Association, a national banking association, as administrative agent for the Banks and as Lead Arranger, Bank of America, N.A. and JPMorgan Chase Bank, National Association, as Co-Syndication Agents, and KeyBank National Association as Documentation Agent	05/10/2010