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View This category in: USA > New Jersey > Northeast Region > Essex County
Energy
Public Service Enterprise GroupPublic Service Enterprise Group (PSEG) is a publicly traded (NYSE:PEG), energy and energy services company headquartered in New Jersey.
http://www.pseg.com/
Oil & Gas
John Duffy Fuel CompanyJohn Duffy is the leading heating & air conditioning contractor and heating oil supplier in Newark, Elizabeth, Jersey City, Edison, East Orange and nearby areas in Essex, Union, Middlesex, ...
http://www.duffyenergy.com/
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