| OIL FIELD TECHNOLOGIES AND ENVIRONMENTAL SERVICES CO. WLL |
| OILFIELD TESTING SERVICES |
| Oilfield Transport & Services Egypt Ltdˇ OTSE |
| Oilfield Tubular Services |
| OIL FIELD WAREHOUSE & SERVICES |
| OILFILED SUPPLY CENTRE |
| OIL& GAS CONSTRUCTION CO LLC |
| OIL & GAS CONSTRUCTION LLC |
| OIL GAS INTERNATIONAL ADVANCE |
| OIL & GAS INTERNATIONAL EQUIPMENT CO LTD |
