Total SA (TOT): Announces increase in refining margins in Q1, compared to earlier quarter. Also, claims in making progress in stemming leak on Elgin Platform in North Sea.
Alpha Natural Resources (ANR): upgraded to Buy from Neutral at Citigroup.
Pioneer Drilling (PDC)
Transocean (NYSE: RIG): downgraded to Market Perform from Strong Buy at Raymond James.
Haliburton (HAL): Downgraded to Market Perform from Outperform at Raymond James.
Freeport McMoRan (FCX): upgraded to Buy from Neutral at Citigroup.