3 U.S. Midwest E.ON U.S. LLC Louisville, Kentucky, USA, 100% Regulated Business Non-regulated Business/Other Energy Trading E.ON Energy Trading SE Düsseldorf, Germany, 100% Proprietary Trading Optimization New Markets E.ON Climate & Renewables GmbH Düsseldorf, Germany, 100% E.ON Russia Power Moscow, Russia, 100% E.ON Italia S.p.A. Milan, Italy, 100% E.ON España S.L. Madrid, Spain, 100% In 2009, E.ON Energie supplied power and gas to about 17 million customers in and outside Germany, about half of them in Central Europe West and half in Central Europe East. This figure includes customers served by significant minority shareholdings. Pan-European Gas E.ON Ruhrgas is one of Europe's leading gas companies and one of the world's largest investor-owned gas importers. Its customers are regional and municipal energy companies as well as industrial enterprises in and outside Germany. Effec- tive 2009, Pan-European Gas adjusted its segment reporting. The reporting units Up-/Midstream and Downstream Share- holdings were replaced by non-regulated and regulated. The non-regulated business consists of the gas wholesale busi- ness, the exploration and production business, and the gas storage business. The regulated business consists of owner- ship interests in energy companies in European countries other than Germany (E.ON Ruhrgas International) and the reg- ulated transport business. Minority ownership interests in municipal gas and electric utilities in Germany (Thüga) are reported, along with consolidation effects, under Other/ Consolidation. Thüga was sold to a consortium of municipal utilities effective December 1, 2009. At year-end 2009, the pipeline system of E.ON Gastransport and its project companies in Germany had a total length of 11,600 kilometers (prior year: 11,552 kilometers); 70 kilometers of coke gas pipelines are owned by E.ON Ruhrgas.The working gas capacity of E.ON Gas Storage's owned, jointly owned, project-company-owned, and leased underground storage facilities was approximately 10 billion cubic meters (6 billion cubic meters in Germany) at year-end 2009. U.K. E.ON UK runs our energy business in the United Kingdom. Its regulated business consists of Central Networks, which oper- ates an electricity distribution business in central England. Its non-regulated business includes the generation, retail, and the energy services businesses. The generation business covers activities including power generation, operation and maintenance of combined heat and power plants, and power station development and operation. The retail business encompasses the sale of electricity and gas services to resi- dential, business, and industrial customers. As of Decem- ber 31, 2009, E.ON UK supplied approximately 7.9 million cus- tomer accounts, of which 7.4 million were residential and 0.5 million were business customer accounts. Nordic E.ON Sverige manages our energy operations in Northern Europe. The regulated business consists of power and gas distribution. The non-regulated business consists mainly of power generation; heat production; power, gas, and heat sales; and energy services. At year-end 2009, Nordic supplied roughly 1 million electricity, gas, and heat customer accounts. Combined Group Management Report Consolidated Financial Statements Corporate Governance Report Supervisory Board and Board of Management Tables and Explanations