Hartree Partners, a global merchant commodities firm, agreed to acquire the natural gas storage assets of Plains All American, a publicly traded master limited partnership that owns and operates midstream energy infrastructure, for $850m. "Today’s announcement marks a key step in the execution of our 2021 Plan and deleveraging program. Successful completion of this transaction will enable Plains to exceed our 2021 asset sales target of $750m, generating additional free cash flow and building momentum to reduce debt and increase investor returns," Willie Chiang, Plains Chairman and CEO.