DTE Energy Company, established in 1903 and based in Detroit, Michigan, is primarily engaged in utility services. Its Electric division is responsible for generating, acquiring, delivering, and selling electricity to approximately 2.3 million customers—including households, businesses, and industrial clients—across southeastern Michigan. This power is sourced from diverse facilities, encompassing fossil fuel, pumped-storage hydroelectric, nuclear, wind, and other renewable energy assets. The infrastructure supporting this includes around 698 distribution substations and 449,800 line transformers. The Gas division manages the procurement, storage, transmission, distribution, and sale of natural gas to roughly 1.3 million residential, commercial, and industrial customers statewide in Michigan. This segment also provides natural gas storage and transportation capacity. Its extensive network features approximately 20,000 miles of distribution mains, 1,304,000 service pipelines, 1,305,000 active meters, and about 2,000 miles of transmission pipelines. Through its Power and Industrial Projects segment, DTE Energy supplies metallurgical coke, along with pulverized coal and petroleum coke, to the steel, pulp and paper, and other industrial sectors. This segment also delivers essential services such as power, steam, and chilled water production, wastewater treatment, and compressed air to various industrial clients. Finally, the Energy Trading segment focuses on the marketing and trading of power, natural gas, and environmental commodities. It also undertakes structured transactions and works to optimize its contracted natural gas pipeline transportation and storage assets.