Declining crude oil inventories means a decline in oil supply. As oil prices are driven by the supply-demand, if there is less oil in the market to meet the requirements, obviously the prices are gonna get affected.
I hope this will help you...
Crude Oil: Lower Production Is Starting To Have An...
Though the stock is quite overpriced, year on year it has shown consistent growth. For the third quarter of 2015, it’s sales grew by 7% to *$7.5 billion and earnings by 16% to $791 million.
I think you can buy them now. Because currently Apple is trading at $127.80. Last time when I checked out the price, it was around $135. At what price you bought them last time?
I think, the best way to get the things is go for news, articles and forecasts on various stocks. Do your own analysis, get some expert advice and then go for the investment. This is something which I used to do, when I started investing in stocks.
I think, investing in biotech stocks is a bit risky, maybe because of the uncertainty in it's success rate. So, I would suggest to do the thorough analysis before you go for such investments.