Schlumberger/Sedco Forex has contracted FirstWave/Newpark Shipbuilding for upgrades and maintenance work on the offshore semi-submersible drilling rig Bill Shoemaker. The rig was brought into Newpark Shipbuilding's East Pelican Island yard in Galveston, Texas in December 1998. The company provides repair, conversion, new construction and related services for barges, boats, ships, offshore rigs, and other vessels in the offshore and inland marine industries.