2. Nabors International ( NBR) shares are up 55.4% this month, bringing the yearly decline to 18.8%. The company is one of the world's largest land-rig drilling contractors and is benefiting from the North American oil shale boom. Last week, Nabors reported a strong third quarter that bested Wall Street's average estimate by 3 cents per share. Nabors earned $74.3 million on revenue of $1.66 billion. The company was in the news yesterday for giving its 81-year-old chairman a $100 million cash severance-style payment even though he isn't leaving the company, but only giving up his CEO post.