| 2009 | Commissioned | Commissioned Deepsea Atlantic as GVA7000 harsh environment design, semi-submersible rig with station keeping, for Odfjell Drilling, Aberdeen | |
| 2010 | Commissioned | Commissioned Deepsea Stavanger as GVA7000 harsh environment design, semi-submersible rig with station keeping, for Odfjell Drilling, Aberdeen | |
| 2014 | Commissioned | Commissioned Deepsea Aberdeen as GVA7000 harsh environment design, semi-submersible rig with station keeping, for Odfjell Drilling, Aberdeen | |
| 2014 | Deployment | Deployment Ocean Guardian drilled production wells for Irelands Corrib Field c 3.6km deep in Triassic rocks, from 355m of Atlantic Ocean about 50 miles W of County Mayo. | |
| 2015 | Laid down | Laid down Deepwater Thalassa Yard no 3507 | |
| 2015 | Laid down | Laid down Deepwater Conqueror Yard no 3511 | |
| 2015-jul-04 | | Deepwater Thalassa noted at Okpo | |
| 2016 | Laid down | Laid down Deepwater Poseidon Yard no 3510 | |
| 2019 | Commissioned | Commissioned Deepsea Yantai as GM4D harsh environment design, semi-submersible rig with station keeping, for Odfjell Drilling, Aberdeen | |
| 2019 | Commissioned | Commissioned Deepsea Nordkapp as Moss CS60E harsh environment design, semi-submersible rig with station keeping, for Odfjell Drilling, Aberdeen | |
| 2019 | Commissioned | Commissioned Deepsea Mira as Moss CS60E harsh environment design, semi-submersible rig with station keeping, for Odfjell Drilling, Aberdeen | |
| 2020 | Commissioned | Commissioned Deepsea Bollsta as Moss CS60E harsh environment design, semi-submersible rig with station keeping, for Odfjell Drilling, Aberdeen | |
| 2020-apr-01 | Port Visit | Port Visit Deepwater Champion noted off Piraeus | |
| 2022-oct | | Noble Highlander when Maersk Drilling merged with Noble Corporation, changed name from Maersk Highlander | |
| 2024-feb | Deployment | Deployment West Capella Drilled the Layaran-1 exploration well on behalf of Mubadala Energy in the South Andaman Sea, offshore Indonesia. It discovered an estimated 6 trillion cubic feet gas accumulation. | |
| 2024-mar-08 | Port Visit | Port Visit Noble Highlander noted alongside in Esbjerg | |
| 2024-may | Deployment | Deployment West Capella Drilled the Tangkulo-1 exploration well on behalf of Mubadala Energy in the South Andaman Sea, offshore Indonesia to a depth of 3400m, in 1200m of water. It discovered an 80m gas column in Oligocene age sandstones. This field holds an estimated 2 trillion cubic feet of gas. | |
| 2024-may | Deployment | Deployment West Phoenix working in the Balder Field, near Balder H, c 100nm WNW of Stavanger. | |
| 2024-may-25 | Deployment | Deployment Ocean Guardian operating in the Buchan Field. | |
Daewoo Shipbuilding Marine Engineering - Geoje-Daero
Stocznia Gdanska - 
