Scenario A major oil and gas producer was ramping up enhanced oil recovery (EOR) in the Permian Basin region of West Texas. The operation uses CO 2 injection to reduce the viscosity of crude oil in the formation and force hydrocarbons closer to the surface. A gas plant servicing the field separates the CO 2 and gases from the re- covered crude before sending the oil to a pipeline. Some of the separated gas is used to fuel engines at the plant an

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