UGI Corporation

UGI Corporation (formerly United Gas Improvement Corp.) is a natural gas and electric power distribution company headquartered in King of Prussia, Pennsylvania, with extensive operations in the United States and Europe.

UGI owns AmeriGas, the largest propane marketer in the United States. UGI also owns AvantiGas, Antargaz and Flaga in Europe.

UGI also operates interstate and intrastate transmission and natural gas storage assets in the Marcellus Shale.

UGI was incorporated in 1882 as United Gas Improvement Co.

In 1903, the company owned the majority of the stock of the Equitable Illuminating Gas Light Company, which operated the Philadelphia Gas Works.

The company formed the United Electric Company of New Jersey in 1899. United Electric consolidated several electric and lighting utilities into a single holding company.

Public Service Corporation of New Jersey took over United Electric in 1907. United Electric was ultimately merged into Public Service Enterprise Group.

In October 1964, Industrial Gases, Inc., of Pittsburgh, Pennsylvania, filed an antitrust suit in United States district court charging the company with attempting to eliminate competition in sales of bottled propane gas in Pittsburgh. The Philadelphia Gas Works division of UGI challenged a ruling of the Federal Power Commission. The FPC lowered the maximum price that natural gas producers could charge to $0.16 per 1,000 cubic feet (28 m³) of gas. This mandate was upheld by the Supreme Court of the United States in May 1968.