Based in Philadelphia, PECO is an electric and natural gas utility subsidiary of Exelon Corporation (NYSE: EXC). PECO serves 1.6 million electric and more than 500,000 natural gas customers in southeastern Pennsylvania and employs about 2,400 people in the region. PECO delivered 85.7 billion cubic feet of natural gas and 37.8 billion kilowatt-hours of electricity in 2013. Founded in 1881, PECO is one of the Greater Philadelphia Region's most active corporate citizens, providing leadership, volunteer and financial support to numerous arts and culture, education, environmental, economic development and community programs and organizations.