| Customer Name |
State |
| Atlantic Electric Company |
NJ |
| Blackstone Valley Electric |
RI |
| Boston Edison Company |
MA |
| Boston Gas Company |
MA |
| Brooklyn Union Gas Company |
NY |
| Central Hudson Gas & Electric |
NY |
| Central Maine Power Company |
ME |
| City of Bowling Green |
KY |
| City of Charlottesville Public Utilities |
VA |
| City of Richmond |
VA |
| Colonial Gas Company |
MA |
| Connecticut Light & Power Co. |
CT |
| Consolidated Edison Company |
NY |
| Elizabethtown Gas Company |
NJ |
| Harrison Dept. of Water |
NJ |
| Hope Gas |
WV |
| Kentucky Utilities Company |
KY |
| Metropolitan Edison Company |
PA |
| Metropolitan Utility District |
NY |
| Monongahela Power Company |
WV |
| National Fuel Gas Dist. Corp. |
NY |
| New Jersey-American Water Company |
NJ |
| New Jersey Natural Gas |
NJ |
| New York State Elec & Gas |
NY |
| Northeast Utilities |
CT |
| Orange & Rockland Utilities, Inc. |
NY |
| Osmose, Inc. |
NY |
| Penn Fuel Gas, Inc. |
PA |
| Pennsylvania Electric Co. |
PA |
| Philadelphia Electric Company |
PA |
| Philadelphia Gas Works |
PA |
| Potomac Electric Company |
DC |
| PPL Gas Utilities |
PA |
| Public Service Electric & Gas |
NJ |
| Reading Municipal Light Dept. |
MA |
| Richmond Cities Public Utilities |
VA |
| Rochester Gas & Electric Corp. |
NY |
| South Jersey Gas Company |
NJ |
| Southern Maryland Electric Cooperative |
MD |
| Specialized Technical Service, Inc. |
KY |
| Taunton Municipal Lighting Plant |
MA |
| The Potomac Edison Co. |
MD |
| Trace Service, Inc. |
PA |
| Tru-Check, Inc. |
KY |
| UGI Corporation |
PA |
| United Illuminating Company |
CT |
| Virginia Power Company |
VA |
| Washington Suburban Sanitary |
MD |
| West Penn Power |
PA |