Odfjell Drilling Ltd. owns and operates mobile offshore drilling units in Norway, the United Kingdom, Europe, Asia, Africa, and internationally. It operates through Mobile Offshore Drilling Units business (MODU), Energy business (Energy), and Well Services business (OWS) segments. The MODU segment offers management services to other owners of drilling units; and operational management, regulatory requirements management, marketing, contract negotiations and client relations, and operation and mobilization preparation services.