Valaris Limited VAL, an offshore drilling services provider, has announced that it will permanently retire three semi-submersible rigs as part of its efforts to streamline its drilling fleet.

Brazilian driller Constellation Oil Services has been awarded a fresh contract for the semi-submersible rig Lone Star offshore Brazil. Local independent Brava Energia has agreed to charter the Lone ...

The move comes after the company offered a deal to Norway's Aker Kvaerner for the delivery of drilling equipment and a system for an ultra-deep water semi-submersible drilling unit. CNOOC is now ...

The Deepwater Nautilus, an ultra-deep water state of the art semi-submersible drilling rig, owned by Transocean Inc., broke free while attempting to run from Hurricane Rita and is now adrift in heavy ...