| MAG PETROLEUM INVESTMENT LIMITED | Private company limited by shares | Live |
| T&T Petroleum and Investment Limited | Private company limited by shares | Live |
| British Investment Petroleum Limited | | Live |
| HK CAUSEWAY BAY PETROLEUM INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| GULF PETROLEUM INVESTMENT LIMITED | Private company limited by shares | Live |
| NOVA PETROLEUM INVESTMENT COMPANY LIMITED | Private company limited by shares | Live |
| SUN PETROLEUM & INVESTMENTS LIMITED | Private company limited by shares | Live |
| PACIFIC PETROLEUM INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| ISAKA PETROLEUM COMPANY LIMITED | Private company limited by shares | Dissolved |
| JIATAI PETROLEUM CO., LIMITED | Private company limited by shares | Dissolved |
| JIBSEN PETROLEUM COMPANY LIMITED | Private company limited by shares | Dissolved |
| USA JINZHIZUN PETROLEUM GROUP (CHINA) CO., LIMITED | Private company limited by shares | Live |
| GERMANY KAIWEILONG PETROLEUM LIMITED | | Live |
| USA KANGFEI PETROLEUM LIMITED | Private company limited by shares | Live |
| KangFei (USA) Petroleum Group Limited | Private company limited by shares | Live |
| KELAND PETROLEUM GAS INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| KILO PETROLEUM COMPANY LIMITED | Private company limited by shares | Dissolved |
| Kingsleigh Petroleum Limited | Private company limited by shares | Live |
| HOI KONG PETROLEUM COMPANY LIMITED | Private company limited by shares | Dissolved |
| SUN KONG PETROLEUM COMPANY LIMITED | Private company limited by shares | Live |
| KOREA MODERN PETROLEUM GROUP LIMITED | Private company limited by shares | Live |
| KUENTAI PETROLEUM COMPANY LIMITED | Private company limited by shares | Dissolved |
| LAINSO PETROLEUM LIMITED | Private company limited by shares | Live |
| Germany Lake Petroleum & Chemical International (Asia Pacific) Investment Limited | Private company limited by shares | Live |
| LAROS PETROLEUM LIMITED | Private company limited by shares | Live |
| SINGAPORE LIKA (INT'L) PETROLEUM LIMITED | Private company limited by shares | Dissolved |
| LINHI PETROLEUM HK LIMITED | Private company limited by shares | Live |
| EASTERN LINK PETROLEUM & SHIPPING LIMITED | Private company limited by shares | Live |
| CHINA LINKER PETROLEUM (HK) LIMITED | Private company limited by shares | Live |
| LITHCON PETROLEUM LIMITED | Private company limited by shares | Live |
| RICH LOYAL (CHINA) PETROLEUM LIMITED | Private company limited by shares | Live |
| US LUBAO PETROLEUM INTERNATIONAL (HK) LIMITED | Private company limited by shares | Dissolved |
| LUJITAN PETROLEUM GROUP SHARES LIMITED | Private company limited by shares | Live |
| SUN WAI LUNG PETROLEUM LIMITED | Private company limited by shares | Dissolved |
| Germany Luotuowang Petroleum Chemistry Co., Limited | Private company limited by shares | Live |
| HA PETROLEUM MACHINERY COMPANY LIMITED | Private company limited by shares | Live |
| Petroleum Machinery Limited | Private company limited by shares | Live |
| MALAY PETROLEUM COMPANY LIMITED | Private company limited by shares | Dissolved |
| Marathon Petroleum Limited | Private company limited by shares | Live |
| MAXDO PETROLEUM LIMITED | Private company limited by shares | Live |
| MAXSKILL (PETROLEUM) LIMITED | Private company limited by shares | Dissolved |
| MAXTOP PETROLEUM LIMITED | Private company limited by shares | Dissolved |
| Meideng Petroleum (China) Limited | Private company limited by shares | Live |
| USA MEISIKE PETROLEUM (CHINA) LIMITED | Private company limited by shares | Live |
| CHINA MERCHANTS PETROLEUM GROUP LIMITED | Private company limited by shares | Live |
| MESOZOIC PETROLEUM ENTERPRISE LIMITED | Private company limited by shares | Live |
| Midas Petroleum Co. Limited | Private company limited by shares | Dissolved |
| MILLENNIUM PETROLEUM ASIA LIMITED | Private company limited by shares | Dissolved |
| 2T MINERALS AND PETROLEUM LIMITED | Private company limited by shares | Dissolved |
| MING FAT PETROLEUM COMPANY LIMITED | Private company limited by shares | Live |
| ORIENTAL PETROLEUM AND MINING LIMITED | Private company limited by shares | Dissolved |
| EVER MINK PETROLEUM RESOURCES INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| MORISTONGLEN PETROLEUM LIMITED | Private company limited by shares | Dissolved |
| PRIMA MOVE PETROLEUM COMPANY LIMITED | Private company limited by shares | Live |
| GERMANY NAIRUN INTERNATIONAL PETROLEUM GROUP LIMITED | Private company limited by shares | Live |
| NAKIMI PETROLEUM LIMITED | Private company limited by shares | Dissolved |
| NAPA PETROLEUM LIMITED | Private company limited by shares | Dissolved |
| NAPA PETROLEUM TRADE LIMITED | Private company limited by shares | Live |
| China National Petroleum & WLE Limited | Private company limited by shares | Live |
| CHINA NATIONAL PETROLEUM GROUP LIMITED | Private company limited by shares | Live |
| Cnocean National Petroleum Co., Limited | Private company limited by shares | Live |
| NATURAL PETROLEUM LIMITED | Private company limited by shares | Live |
| NATURAL PETROLEUM CHINA LIMITED | Private company limited by shares | Live |
| NATURAL PETROLEUM GROUP LIMITED | Private company limited by shares | Live |
| Neom Petroleum Oil Company Limited | | Live |
| NICOR PETROLEUM AND RESOURCES LIMITED | Private company limited by shares | Dissolved |
| NORMAN PETROLEUM LIMITED | Private company limited by shares | Dissolved |
| NORTH PETROLEUM COMPANY LIMITED | Private company limited by shares | Dissolved |
| NORTH PETROLEUM INTERNATIONAL COMPANY LIMITED | Private company limited by shares | Live |
| GERMANY OBASS PETROLEUM GROUP LIMITED | Private company limited by shares | Dissolved |
| OCEAN PETROLEUM COMPANY LIMITED | Private company limited by shares | Dissolved |
| OCEAN PETROLEUM LIMITED | Private company limited by shares | Live |
| TOP OCEAN PETROLEUM LIMITED | Private company limited by shares | Live |
| Octagon Petroleum Limited | | Live |
| HK ODER PETROLEUM MACHINERY CO., LIMITED | Private company limited by shares | Live |
| ODYSSEY PETROLEUM LIMITED | Private company limited by shares | Dissolved |
| ORIENTAL PETROLEUM COMPANY LIMITED -THE- | Private company limited by shares | Dissolved |
| ORIENTAL PETROLEUM OIL & GAS COMPANY LIMITED | Private company limited by shares | Live |
| PACIFIC ORIENTAL PETROLEUM LIMITED | Private company limited by shares | Dissolved |
| ORIENTAL PETROLEUM (SOUTH SEA) LIMITED | Private company limited by shares | Dissolved |
| ORIENTAL PETROLEUM (YANGTZE) LIMITED | Private company limited by shares | Live |
| GERMANY OUKESEN INTERNATIONAL PETROLEUM GROUP LIMITED | Private company limited by shares | Live |
| CHINA OVERSEAS PETROLEUM GROUP CO., LIMITED | Private company limited by shares | Live |
| CHINA OVERSEAS PETROLEUM AND NATURAL GAS LIMITED | Private company limited by shares | Live |
| USA OVRNBO INC PETROLEUM GROUP CO., LIMITED | Private company limited by shares | Live |
| PACICRAFT PETROLEUM LIMITED | Private company limited by shares | Dissolved |
| PACIFIC RIM PETROLEUM LIMITED | Private company limited by shares | Dissolved |
| PACIFIC PETROLEUM LIMITED | Private company limited by shares | Live |
| ASIA PACIFIC OIL AND PETROLEUM LIMITED | Private company limited by shares | Dissolved |
| EURO PACIFIC PETROLEUM LIMITED | Private company limited by shares | Dissolved |
| PARRIE PETROLEUM COMPANY LIMITED | Private company limited by shares | Dissolved |
| CHINA PEACE PETROLEUM GROUP LIMITED | Private company limited by shares | Live |
| Peace Tech Petroleum Equipment Co., Limited | Private company limited by shares | Live |
| PEOPLE PETROLEUM LIMITED | Private company limited by shares | Live |
| CHINA PETROLEUM PETROCHEMICAL PUBLISH CO. LIMITED | Private company limited by shares | Dissolved |
| PHILMA PETROLEUM LIMITED | Private company limited by shares | Live |
| CHINA PEACE PETROLEUM PIPELINE GROUP LIMITED | Private company limited by shares | Live |
| POWER PETROLEUM COMPANY LIMITED | Private company limited by shares | Live |
| Powertek Petroleum Limited | Private company limited by shares | Live |
| CHUEN HING PETROLEUM & CHEMICALS (H.K.) PRIVATE LIMITED | Private company limited by shares | Dissolved |