| 12/16/2024 | BK | Otter Tail, Otter Tail Power restate credit agreements
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| 7/22/2024 | BK | Moody's views Otter Tail negatively
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| 9/22/2023 | BKIG | Fitch lifts Otter Tail
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| 11/1/2022 | BK | Otter Tail and subsidiary amend and restate revolving agreements
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| 3/1/2022 | BKIG | S&P turns Otter Tail view to stable
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| 10/4/2021 | BK | Otter Tail, Otter Tail Power extend two revolvers to 2026
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| 8/18/2020 | BKIG | S&P revises Otter Tail view to negative
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| 11/5/2019 | BK | Otter Tail extends two revolvers to 2024, lifts one to $170 million
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| 9/18/2019 | BKIG | S&P ups Otter Tail Power
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| 8/30/2018 | BKIG | Fitch affirms Otter Tail
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| 11/2/2017 | BK | Otter Tail, unit extend $130 million, $170 million revolvers to 2022
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| 8/21/2017 | BKIG | S&P ups Otter Tail view to positive
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| 8/7/2017 | BKIG | Moody’s assigns Baa2 to Otter Tail
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| 11/3/2016 | BK | Otter Tail extends pair of revolvers totaling $300 million to 2021
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| 2/9/2016 | BK | Otter Tail obtains two-year $50 million term loan via JPMorgan
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| 11/3/2015 | BK | Otter Tail extends $150 million credit line via U.S. Bank by one year
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| 9/1/2015 | BK | Otter Tail uses credit facility draw to fund $30.5 million acquisition
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| 11/4/2014 | BK | Otter Tail, subsidiary extend revolving credit facilities to 2019
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| 1/30/2014 | BKIG | Moody's upgrades Otter Tail
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| 11/1/2013 | BK | Otter Tail, subsidiary extend revolvers to 2018, term loan to 2015
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| 6/21/2013 | BKHYIG | S&P ups Otter Tail debt
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| 12/7/2012 | BKHYIG | Moody's ups Otter Tail notes to Baa3
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| 11/2/2012 | BK | Otter Tail gets $150 million unsecured revolver at Libor plus 175 bps
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| 11/30/2009 | BKHYIG | Moody's rates Otter Tail notes Ba1
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| 11/30/2009 | BK | Otter Tail to repay revolver with senior unsecured note proceeds
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