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.

February 14, 1982 – The world’s largest semi-submersible oil rig, the Ocean Ranger, stands in the path of a violent North Atlantic storm. Believed to be “unsinkable,” it vanishes beneath the waves ...

SINGAPORE, Dec 22 (Reuters) - Singapore's Keppel Corp, the world's largest oil rig builder, said on Thursday it has secured a contract worth around $809 million to design and build a semi-submersible ...

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 ...

Brazilian driller Constellation Oil Services has won a contract extension with Petrobras for the oldest rig in its fleet. Constellation announced the current charter for the semi-submersible drilling ...