Piper Alpha… Deepwater Horizons… rigs have beautiful names. The Deepwater Family: Deepwater Discovery – Drillship type rig. Owned by Transocean Inc.. 2000 Deepwater Expedition – Drillship type rig. Owned by Transocean Inc.. 1999 Deepwater Frontier – Drillship type rig. Owned by Deepwater Drilling LLC. 1999 Deepwater Horizon – Semisub type rig. Owned by Transocean Inc.. [...]