International Offshore Services began business in 1965 and was sold to Tidewater in 1974, apparently excluding the Bermudian vessels. The source records UK, French, Dutch, Liberian and Bermudian companies. Names commonly began with Lady, later changed in many cases to names ending in Tide. The Bermudian company also used Master for ships under its own control. A later ownership account describes a P&O–Farstad partnership, with P&O selling its share to Farstad.
UK, London.
Keep the explicit scope label independent; no alias or company identity is inferred.