This stock, says advisory service, could be a 'potential double'

"Holly Corp. (HOC), an independent petroleum refiner, gave a solid 'Buy' signal a little over two months ago and appears poised to continue moving a lot higher," suggests Mike Turner, editor of the newly-launched advisory service, Mastering the Markets.

"Holly Corp. is my top-ranked 'Doubler' -- my list of stocks with the potential to double in price. With regard to HOC's fundamentals, I like the following: