Schlumberger (SLB) Latest Three Energy Plays to Tap Markets Shares of these oil-services companies continue to climb right along with the price of crude as global growth fuels the demand for oil exploration and drilling. Markets Energy-Services Companies: Drills and Bills Markets Persistently high oil and gas prices, surging worldwide consumption, and oil companies ready to spend big bucks means the oil-services sector is still heating up. By Anne Kates Smith Published 10 July 06 Markets 1 2