Focusing on high-margin drilling technology and tools, Duroc-Danner spun off the drill-pipe business as Grant Prideco in 2000 and sold off capital-intensive barge rig and gas-compression businesses.
Focusing on high-margin drilling technology and tools, Duroc-Danner spun off the drill-pipe business as Grant Prideco (nyse: GRP - news - people ) in 2000 and sold off capital-intensive barge rig and gas-compression businesses.