Jackup Rigs Market Key Players The significant companies of the jackup rigs market are Noble Corporation PLC (U.K.), Seadrill Limited (Bermuda), KCA DEUTAG Ltd.(Scotland), Maersk Drilling (Denmark), Rowan Companies Inc.(U.K.), Diamond Offshore Drilling, Inc. (U.S), COSL (China), Transocean Ltd. (Switzerland), ENSCO PLC (U.K.),  Halliburton (U.S.) and others. Market-Overview The...