Osaka Gas - Covers company and shareholder information, guide for investors, safety, research and development activities, environmental actions, annual report, and recipes. Japan Energy Corporation - Active in petroleum, non-ferrous metals, electronic materials and other operations. Runs the Jomo gasoline station chain. Tottori Gas Co. - Manufactures, supplies and sells gas, appliances, installation pipelines and other gas related services. With company information and affiliated companies. Japan Gas Association (JGA) - Comprised of city gas utilities to promote the use of natural gas as a power source, seek beter tax provisions and subsidies, promote safety and technology development, and conduct PR activities. Tokyo Gas Co., Ltd. - Supplier for natural gas for residential and business consumption. With environmental and procurement information, news, and investor guide. Cosmo Oil Co., Ltd. - Based in Tokyo. With overview, profile, business activities, financial data, news reports, and environmental publications. Idemitsu Kosan Co., Ltd. - Company outline, history, policies, accounts statement, procurement of petroleum, refining, distribution and sales, alternative energy, research and development, petrochemicals, societal and cultural activities, and museum. Based in Tokyo. Showa Shell Sekiyu K.K. - Business activities of the Shell Group consist of oil exploration and production, oil products, gas and power, chemicals, IT, and renewable energy. Kanto Natural Gas Development - Development, production and distribution of natural gas on a commercial basis. Iwatani International Corporation - Gas and energy development and supply company. With corporate data, history, and financial data. Hiroshima Gas - Gives company profile, investor relations, data on subsidiaries and contacts, and timeline of natural gas use in Japan. Saibu Gas Co. Ltd. - Produces, supplies, and sells of natural gas in Kyushu. Includes corporate profile, history, and security as well as financial data.