| Company Name | Type | Status |
|---|---|---|
| SINOIL CO. LIMITED | Private company limited by shares | Dissolved |
| SINOIL ASIA LIMITED | Private company limited by shares | Dissolved |
| SINOIL ENERGY LIMITED | Private company limited by shares | Live |
| SINOIL PETROLEUM EQUIPMENT LIMITED | Private company limited by shares | Live |
| HONGKONG SINOIL CO., LIMITED | Private company limited by shares | Live |