I&M OPCo December 31, 2020 Risk Management Gross Amounts Offset Net Amounts of Assets/Liabilities Contracts - in the Statement of Presented in the Statement Balance Sheet Location Commodity (a) Financial Position (b) of Financial Position (c) (in millions) Current Risk Management Assets $ 17.2  $ (13.6) $ 3.6  Deferred Charges and Other Noncurrent Assets - Long-term Risk Management Assets 0.5  (0.4) 0.1  Total Assets 17.7  (14.0) 3.7  Other Current Liabilities - Current Risk Management Liabilities 12.1  (12.0) 0.1  Deferred Credits and Other Noncurrent Liabilities - Long-term Risk Management Liabilities 0.4  (0.3) 0.1  Total Liabilities 12.5  (12.3) 0.2  Total MTM Derivative Contract Net Assets (Liabilities) $ 5.2  $ (1.7) $ 3.5  December 31, 2019 Risk Management Gross Amounts Offset Net Amounts of Assets/Liabilities Contracts - in the Statement of Presented in the Statement Balance Sheet Location Commodity (a) Financial Position (b) of Financial Position (c) (in millions) Current Risk Management Assets $ 66.9  $ (57.1) $ 9.8  Deferred Charges and Other Noncurrent Assets - Long-term Risk Management Assets 0.5  (0.4) 0.1  Total Assets 67.4  (57.5) 9.9  Other Current Liabilities - Current Risk Management Liabilities 55.2  (54.7) 0.5  Deferred Credits and Other Noncurrent Liabilities - Long-term Risk Management Liabilities 0.4  (0.4) —  Total Liabilities 55.6  (55.1) 0.5  Total MTM Derivative Contract Net Assets (Liabilities) $ 11.8  $ (2.4) $ 9.4  December 31, 2020 Risk Management Gross Amounts Offset Net Amounts of Assets/Liabilities Contracts - in the Statement of Presented in the Statement Balance Sheet Location Commodity (a) Financial Position (b) of Financial Position (c) (in millions) Current Risk Management Assets $ 0.3  $ (0.3) $ —  Long-term Risk Management Assets —  —  —  Total Assets 0.3  (0.3) —  Current Risk Management Liabilities 8.7  —  8.7  Long-term Risk Management Liabilities 101.6  —  101.6  Total Liabilities 110.3  —  110.3  Total MTM Derivative Contract Net Liabilities $ (110.0) $ (0.3) $ (110.3) December 31, 2019 Risk Management Gross Amounts Offset Net Amounts of Assets/Liabilities Contracts - in the Statement of Presented in the Statement Balance Sheet Location Commodity (a) Financial Position (b) of Financial Position (c) (in millions) Current Risk Management Assets $ —  $ —  $ —  Long-term Risk Management Assets —  —  —  Total Assets —  —  —  Current Risk Management Liabilities 7.3  —  7.3  Long-term Risk Management Liabilities 96.3  —  96.3  Total Liabilities 103.6  —  103.6  Total MTM Derivative Contract Net Liabilities $ (103.6) $ —  $ (103.6) 328