OTTR - Otter Tail Corp (OTTR) Q3 2020 Earnings Call Transcript November, 03 2020 09:01 PM Otter Tail Corporation Image source: The Motley Fool. Otter Tail Corp (NASDAQ: OTTR) Q3 2020 Earnings Call Nov 3, 2020 , 11:00 a.m. ET Operator Continue reading For further details see: Otter Tail Corp (OTTR) Q3 2020 Earnings Call Transcript