- ENPPI
- PETROJET
- GENERAL PETROLEUM Co. (GPC)
- RASHID PETROLEUM Co. (RASHPETCO)
- CAIRO OIL REFINING Co.
- AL AHLIA OIL FIELDS DEVELOPMENT Co.
- EGYPT GAS Co.
- NATIONAL GAS Co.
- HOUSE GAS Co.
- NAT GAS Co.
- PETROGAS Co.
- ALEXANDRIA PETROLEUM MAINTENANCE Co. (PETROMAINT)
- TOWN GAS Co.