Subsea Industry Search Engine Find: Companies - Projects - Pipelines - Products - Equipment - Drilling Rigs - Events - News - Links Frigstad Discoverer Invest Ltd. Drilling Rigs Browse Frigstad Discoverer Invest Ltd. drilling rig specification: Frigstad Oslo - Semisub type, rated to 12,000 ft , under Liberia flag, owned by Frigstad Discoverer Invest Ltd., classified by DNV.        HOME         ABOUT US         INVESTORS         WHATS NEW         CONTACT US         FEEDBACK         NEWSLETTER Copyright © 2000-2009 Subsea.Org. All rights reserved.