| No. | Ship Name | Ship Type | Shipyard | Date of Built |
| 26 | Bo Hai No. 12 | Drilling Rig, Jack Up | Mitsubishi HI | 1978 - 07 |
| 27 | Bo Hai No. 4 | Drilling Rig, Jack Up | Hitachi Zosen, Onomichi | 1977 - 07 |
| 28 | Coslpromoter | Drilling Rig, Semi Submersible | Yantai CIMC Raffles Shipyard | 2012 - 04 |
| 29 | Zhao Shang Hai Long 9 | Drilling Rig, Jack Up | China Merchants HI, Haimen | 2020 - 05 |
| 30 | Hai Yang Shi You 944 | Drilling Rig, Jack Up | China Merchants HI, Haimen | 2016 - 02 |
| 31 | Nan Hai Liu Hao | Drilling Rig, Semi Submersible | Gotaverken Arendal, Goteborg | 1982 - 04 |
| 32 | Al Jurf | Drilling Rig, Jack Up | China Merchants HI, Haimen | 2017 - 04 |
| 33 | Tiao Zhan Zhe | Drilling Rig, Jack Up | China Merchants HI, Haimen | 2017 - 04 |
| 34 | Shen Lan Tan Suo | Drilling Rig, Semi Submersible | China Merchants HI, Haimen | 2021 - 04 |
| 35 | Lishen | Drilling Rig, Jack Up | PPL Shipyard, Singapore | 2008 - 03 |
| 36 | Hai Yang Shi You 932 | Drilling Rig, Jack Up | Yantai CIMC Raffles Shipyard | 2014 - 02 |
| 37 | Coslboss | Drilling Rig, Jack Up | Keppel FELS, Singapore | 2008 - 01 |
| 38 | Coslhunter | Drilling Rig, Jack Up | China Merchants HI, Shenzhen | 2013 - 11 |
| 39 | Coslpioneer | Drilling Rig, Semi Submersible | Yantai CIMC Raffles Shipyard | 2010 - 11 |
| 40 | Coslprospector | Drilling Rig, Semi Submersible | Yantai CIMC Raffles Shipyard | 2014 - 11 |
| 41 | Nan Hai Qi Hao | Drilling Rig, Semi Submersible | Mitsui E&S Shipbuilding | 1977 - 08 |
| 42 | Nan Hai Shi Hao | Drilling Rig, Semi Submersible | Rauma-Repola, Pori | 1976 - 11 |
| 43 | Nan Hai Wu Hao | Drilling Rig, Semi Submersible | Framnaes Mekaniske Verksted, Sandefjord | 1983 - 07 |
| 44 | Nan Hai Yi Hao | Drilling Rig, Jack Up | Robin Shipyard, Singapore | 1976 - 10 |
| 45 | Hai Yang Shi You 943 | Drilling Rig, Jack Up | Dalian Shipbuilding Offshore | 2016 - 01 |
| 46 | Hai Yang Shi You 982 | Drilling Rig, Semi Submersible | Dalian Shipbuilding Offshore | 2018 - 03 |
| 47 | Nan Hai Jiu Hao | Drilling Rig, Semi Submersible | Hanwha Ocean | 1988 - 10 |
| 48 | Nan Hai Si Hao | Drilling Rig, Jack Up | Hitachi Zosen, Sakai | 1980 - 04 |
| 49 | Kai Xuan Yi Hao | Drilling Rig, Jack Up | COSCO Nantong Shipyard, Nantong | 2014 - 06 |
| 50 | Wan Zuan 1 | Drilling Rig, Jack Up | Yantai CIMC Raffles Shipyard | 2013 - 12 |