The Dow Jones Industrial Average (DJIA), Dow Jones, or simply the Dow, is a stock market index of 30 prominent companies listed on stock exchanges in the United States.
Northern States Power Company (NYSE: NSP) was a publicly traded S&P 500 electric and natural gas utility holding company based in Minneapolis, Minnesota, that is now a subsidiary of Xcel Energy.
The Dow Jones Utility Average is a stock index from S&P Dow Jones Indices that tracks the performance of 15 prominent utility companies traded in the United States.
The Dow Jones Composite Average is the stock market index composed of 65 prominent companies traded on both exchanges, maintained and tracked by S&P Dow Jones Indices. The average's components include every stock from the Dow Jones Industrial Average, the Dow Jones Transportation Average (20), and the Dow Jones Utility Average (15).
The North American Company was a holding company incorporated in New Jersey on June 14, 1890, and controlled by Henry Villard, to succeed to the assets and property of the Oregon and Transcontinental Company. It owned public utilities and public transport companies and was broken up in 1946, largely to comply with the Public Utility Holding Company Act of 1935.
Ameren Corporation is an American power company created December 31, 1997, by the merger of Union Electric Company of St. Louis, Missouri and the neighboring Central Illinois Public Service Company of Springfield, Illinois. It is now a holding company for several power companies and energy companies. The company is based in St. Louis, with 2.4 million electric, and 900,000 natural gas customers across 64,000 square miles in central and eastern Missouri and the southern four-fifths of Illinois by area.
The Union Electric Company of Missouri was an electric power utility that was organized in 1902 and grew to be one of the large U.S. companies listed among the S&P 500. In 1997, its holding company merged with a smaller neighboring utility, Central Illinois Public Service Company through its holding company, CIPSCO Inc., to form Ameren Corporation based in St. Louis, Missouri.
The Central Illinois Public Service Company was an electric streetcar holding company and power utility first organized in 1902. Under its later quarter billion dollar holding company, CIPSCO Inc., it merged in 1997 with the larger neighboring Union Electric Company of Missouri to form Ameren Corporation based in St. Louis, Missouri. Now a subsidiary, Ameren Illinois is headquartered in Springfield, Illinois.
NiSource Inc. is one of the largest fully regulated utility companies in the United States, serving approximately 3.5 million natural gas customers and 500,000 electric customers across six states through its local Columbia Gas and NIPSCO brands. The company, based in Merrillville, Indiana, has more than 8,000 employees. As of 2018, NiSource is the sole Indiana-based utility company.
Sempra is a North American public utility holding company based in San Diego, California. The company is one of the largest utility holding companies in the United States with nearly 40 million consumers. Sempra's focus is on electric and natural gas infrastructure and its operating companies include: Southern California Gas Company (SoCalGas) and San Diego Gas & Electric (SDGE) in Southern California; Oncor Electric Delivery Company in Texas; and Sempra Infrastructure, with offices in California and Texas.
Alabama Gas Corporation, known as Alagasco, was the largest natural gas utility in the north and central part of Alabama. It was headquartered in Birmingham and at its peak provided natural gas energy to 460,000 homes and businesses.
Energen Corporation was a company engaged in hydrocarbon exploration. In 2018, the company was acquired by Diamondback Energy.
South Jersey Industries is an energy services holding company for a natural gas utility and other, non-regulated companies. It is based in New Jersey.
Intercontinental Exchange, Inc. (ICE) is an American multinational financial services company formed in 2000 that operates global financial exchanges and clearing houses and provides mortgage technology, data and listing services. Listed on the Fortune 500, S&P 500, and Russell 1000, the company owns exchanges for financial and commodity markets, and operates 12 regulated exchanges and marketplaces. This includes ICE futures exchanges in the United States, Canada, and Europe; the Liffe futures exchanges in Europe; the New York Stock Exchange; equity options exchanges; and OTC energy, credit, and equity markets.
Laclede Gas Company is the largest natural gas distribution utility in Missouri, serving about 632,000 residential, commercial and industrial customers in the city of St. Louis and ten counties in eastern Missouri. As an adjunct to its gas distribution business, the company operates an underground natural gas storage field, a propane storage cavern, and propane vaporization facilities.
Missouri Gas Energy (MGE) was a natural gas distribution company headquartered in Kansas City, Missouri in the United States, with offices in St. Joseph, Lee's Summit, Warrensburg, Joplin, Republic, Neosho and Monett. MGE served over in 155 western Missouri communities and was a division of the Southern Union Company until it was ultimately sold to the Spire Inc. Its business is regulated by the Missouri Public Service Commission.
Algonquin Power & Utilities Corp. is a Canadian renewable energy and regulated utility conglomerate with assets across North America. Algonquin actively invests in hydroelectric, wind and solar power facilities, and utility businesses, through its three operating subsidiaries: Bermuda Electric Light Company, Liberty Power and Liberty Utilities.
Mobile Gas, headquartered in Mobile, Alabama, was the largest natural gas utility in coastal Alabama that provided energy to 89,000 homes and businesses. Its operations dated back to 1836 when it began providing gas lighting for the city of Mobile. It had distribution territory in the cities of Mobile, Prichard, Saraland, Satsuma, Semmes, Bayou La Batre, Creola, Mt. Vernon, Spanish Fort, and Loxley. Within those cities, Mobile Gas operated 2,250 miles of pipeline and about 46 miles of transmission lines.
Southern Union Company was a natural gas utility and energy resources company based in Houston, Texas. In 2012, the company was acquired by Energy Transfer Partners.
US$1.855 billion (Fiscal Year Ended 30 September 2020) [2] 
US$8.241 billion (Fiscal Year Ended 30 September 2020) [2] 