Stocks in the news: Schlumberger, Microsoft, Black & Decker

The following post rounds up the companies making headlines today:

Schlumberger (SLB) said Friday its second-quarter earnings tumbled 57 percent as oil and natural gas companies cut back on exploration and drilling, particularly in North America.The company topped earnings estimates on an adjusted basis. Shares fell about 1.8 percent in pre-market trading.

Microsoft (MSFT) reported late Thursday a 29 percent decline in profit on a 17 percent sales slide due to a weakness in the global PC and server markets. The software giant missed analyst estimates on the top line by more than $1 billion. Shares dropped 7.7 percent ahead of the bell.