Constellation Energy
NASDAQ:CEGConstellation Energy Corporation generates and sells electricity in the United States. It operates through five segments: Mid-Atlantic, Midwest, New York, ERCOT, and Other Power Regions. The company sells natural gas, energy-related products, and sustainable solutions. It has approximately 33,094 megawatts of generating capacity consisting of nuclear, wind, solar, natural gas, and hydroelectric assets. It serves distribution utilities; municipalities; cooperatives; and commercial, industrial, governmental, and residential customers. The company was incorporated in 2021 and is headquartered in Baltimore, Maryland.

Enterprise Products Partners
NYSE:EPDEnterprise Products Partners L.P. provides midstream energy services to producers and consumers of natural gas, natural gas liquids (NGLs), crude oil, petrochemicals, and refined products. It operates in four segments: NGL Pipelines & Services, Crude Oil Pipelines & Services, Natural Gas Pipelines & Services, and Petrochemical & Refined Products Services. The NGL Pipelines & Services segment offers natural gas processing and related NGL marketing services. It operates natural gas processing facilities located in Colorado, Louisiana, Mississippi, New Mexico, Texas, and Wyoming; NGL pipelines; NGL fractionation facilities; NGL and related product storage facilities; and NGL marine terminals. The Crude Oil Pipelines & Services segment operates crude oil pipelines; and crude oil storage and marine terminals, which include a fleet of approximately 250 tractor-trailer tank trucks that are used to transport crude oil. It also engages in crude oil marketing activities. The Natural Gas Pipelines & Services segment operates natural gas pipeline systems to gather, treat, and transport natural gas. It leases underground salt dome natural gas storage facilities in Napoleonville, Louisiana; owns an underground salt dome storage cavern in Wharton County, Texas; and markets natural gas. The Petrochemical & Refined Products Services segment operates propylene fractionation facilities, including propylene fractionation units and propane dehydrogenation facilities, and related marketing activities; butane isomerization complex and related deisobutanizer operations; and octane enhancement, isobutane dehydrogenation, and high purity isobutylene production facilities. It also operates refined products pipelines and terminals; and ethylene export terminals; and provides refined products marketing and marine transportation services. Enterprise Products Partners L.P. was founded in 1968 and is headquartered in Houston, Texas.

National Grid
NYSE:NGGNational Grid plc transmits and distributes electricity and gas. It operates through UK Electricity Transmission, UK Electricity Distribution, UK Electricity System Operator, New England, New York, National Grid Ventures, and Other segments. The UK Electricity Transmission segment provides electricity transmission and construction work services in England and Wales. The UK Electricity Distribution segment offers electricity distribution services in Midlands, and South West of England and South Wales. The UK Electricity System Operator segment provides balancing services for supply and demand of electricity on Great Britain's electricity transmission system; and acts as an agent on behalf of transmission operators. The New England segment offers electricity and gas distribution, and electricity transmission services in New England. The New York segment provides electricity and gas distribution, and electricity transmission services in New York. The National Grid Ventures segment provides transmission services through electricity interconnectors and LNG importation at the Isle of Grain, as well as sale of renewables projects. The Other segment engages in the leasing and sale of commercial property, as well as insurance activities in the United Kingdom. The company was founded in 1990 and is headquartered in London, the United Kingdom.
Vistra
NYSE:VSTVistra Corp., together with its subsidiaries, operates as an integrated retail electricity and power generation company. The company operates through six segments: Retail, Texas, East, West, Sunset, and Asset Closure. It retails electricity and natural gas to residential, commercial, and industrial customers across states in the United States and the District of Columbia. In addition, the company is involved in the electricity generation, wholesale energy purchases and sales, commodity risk management, fuel production, and fuel logistics management activities. It serves approximately 4 million customers with a generation capacity of approximately 37,000 megawatts with a portfolio of natural gas, nuclear, coal, solar, and battery energy storage facilities. The company was formerly known as Vistra Energy Corp. and changed its name to Vistra Corp. in July 2020. Vistra Corp. was founded in 1882 and is based in Irving, Texas.