Over the past year or so, we've seen Valero Energy
Two weeks ago, Valero forged a joint fuel venture with Darling International
Valero and Darling are seeking to convert some of these waste products into "renewable diesel." ConocoPhillips
In more recent news, Honeywell
As unlikely as it may seem, animal fats seem to be gaining momentum in the alternative fuel race. When investing in the space, however, be sure to note the pile of carcasses of failed companies in the corner of the room.
I tagged Darling in Motley Fool CAPS with an ill-timed outperform call last September, but Fools rank the company a full five stars. Check out their arguments, and make your own call on the stock right here.