Often, they are only semi-submersible submarines -- designed to ... it in the U.S. Naval Institute's Proceedings, "The ...

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.

LISBON, Portugal (AP) — Portuguese police have seized a semi-submersible vessel transporting 6.5 tons of cocaine destined for Europe, authorities in Lisbon said Tuesday. Portuguese officials ...

These semi-submersible and fully submersible crafts are a testament to the ingenuity and resourcefulness of criminal organizations in circumventing law enforcement efforts. This article delves ...

In addition, it owns and operates a fleet of 14 FPSOs and 1 semi-submersible unit, as well as offers offshore technologies development and digital services. The company was formerly known as IHC ...