| Ameresco
Palmetto, LLC |
| Carolina
Gas Transmissions |
| Cherokee
County Cogeneration |
| Chester
County Natural Gas |
| City
of Bennettsville |
| City
of Union |
| Clinton
Newberry Natural Gas Authority |
| Colonial
Pipeline |
| Colonial
Pipeline-Spartanburg |
| Defense
Fuel Support |
| Dixie
Pipeline |
| Ferrellgas |
| Fort
Hill Natural Gas |
| Fountain
Inn Natural Gas |
| Greenwood
CPW |
| Greer
CPW |
| Kimberly
Clark Corp |
| Kinder
Morgan DBA Plantation Pipeline |
| Lancaster
County Natural Gas |
| Laurens
CPW |
| Magellan
Midstream Partners, LLC |
| Orangeburg
DPU |
| Patriots
Energy Group |
| Piedmont
Natural Gas |
| SCEG
Gas |
| Shaw
Industries |
| Southern
Natural Gas Company |
| Town
of Bamberg |
| Town
of Blacksburg |
| Town
of Winnsboro |
| Trans
Montaigne Inc. |
| University
of South Carolina - Columbia |
| Williams
Transco Gas Pipeline |
| York
County Natural Gas |