Table of Contents Index to Financial Statements 100 Derivative Liabilities Balance Sheet Classification Fair Value (in millions) December 31, 2020 December 31, 2019 Derivatives not designated as hedging instruments: Purchased fixed price swaps – natural gas Derivative liabilities $ —  $ 1  Fixed price swaps – natural gas Derivative liabilities 7  1  Fixed price swaps – oil Derivative liabilities 12  6  Fixed price swaps – ethane Derivative liabilities 10  —  Fixed price swaps – propane Derivative liabilities 36  —  Fixed price swaps – normal butane Derivative liabilities 8  —  Fixed price swaps – natural gasoline Derivative liabilities 13  —  Two-way costless collars – natural gas Derivative liabilities 43  4  Two-way costless collars – oil Derivative liabilities 1  5  Three-way costless collars – natural gas Derivative liabilities 82  84  Three-way costless collars – oil Derivative liabilities 15  4  Basis swaps – natural gas Derivative liabilities 3  17  Call options – natural gas Derivative liabilities 12  3  Put options – natural gas Derivative liabilities 1  —  Swaptions – natural gas Derivative liabilities 2  —  Fixed price swaps – natural gas Other long-term liabilities 3  —  Fixed price swaps – oil Other long-term liabilities 2  2  Fixed price swaps – propane Other long-term liabilities 2  —  Fixed price swaps – normal butane Other long-term liabilities 1  —  Fixed price swaps – natural gasoline Other long-term liabilities 2  —  Two-way costless collars – natural gas Other long-term liabilities 21  4  Three-way costless collars – natural gas Other long-term liabilities 102  72  Three-way costless collars – oil Other long-term liabilities 15  8  Basis swaps – natural gas Other long-term liabilities 7  9  Call options – natural gas Other long-term liabilities 28  15  Call options – oil Other long-term liabilities —  1  Total derivative liabilities $ 428  $ 236 