Clients
 |
 |
 |
 |
| SHELL UK | ICI | SHELL CANADA | TATA STEEL |
 |
 |
 |
 |
| BP | PHILLIPS66 | GULF OIL | CORUS |
 |
 |
 |
 |
| BPA | SASOL | ALSTOM | ALCAN |
 |
 |
 |
 |
| ESSO | TUPRAS | PETRO SA | FOSTER WHEELER |
 |
 |
 |
 |
| TEXACO | LUK OIL | RIO-TINTO | GREENERGY |
 |
 |
 |
 |
| TOTAL | MOBIL OIL | CONOCO PHILLIPS | BNFL |