Schlumberger profit falls 28 percent, top forecast
Net profit fell to $938 million, or 78 cents per share, from $1.3 billion, or $1.06 per share, a year earlier.
Analysts on average had expected earnings per share of 73 cents, according to Reuters Estimates.
Halliburton Co and Weatherford International Ltd reported drops in first-quarter profits earlier this week.
Shares of SCHLUMBERGER (SLB.NY) down 58 percent from a high of $111.91 last July, are up 10 percent so far in 2009.
(Reporting by Matt Daily in New York and Braden Reddall in San Francisco; Editing by Lisa Von Ahn)