By Chuck LeBeau, director of analytics at SmartStops.netStocks in the oil services industry suffered more than most stocks in 2008 as they were hit by a falling stock market combined with an even sharper fall in oil prices. This "double whammy" knocked Schlumberger ( SLB) from a July 2008 high of $111.05. After triggering an important SmartStops.net sell alert at $94.53 the stock continued on down to a low of $35.05 in February. However SLB has already recovered to above $40, up 17% from the February low. In the meantime optimistic option players have been loading up on thousands of SLB call options at the $50 strike price. The current SmartStops.net sell alert on SLB would be triggered if the price reached $37.47. Halliburton ( HAL)one of the world's largest providers of products and services to the energy industry, fell from a July 08 high of $55.38 to a November low of only $13.46. (A protective SmartStops.net sell alert occurred at $45.46.) Halliburton recovered to above $20 in February but then weakened and triggered a recent SmartStops sell alert at $16.61 and is now trading below $16 and appears to be headed lower.