DTE Energy Co. functions as a diversified energy enterprise, specializing in the development and management of various energy-related businesses and services. The company's operations are divided into several key divisions: The Electric segment is responsible for generating, purchasing, distributing, and selling electricity to residential, commercial, and industrial customers throughout southeastern Michigan. The Gas segment procures, stores, transports, distributes, and sells natural gas to residential, commercial, and industrial clients across Michigan, in addition to offering storage and transportation capacity.