CF Industries (NYSE: CF ) is the world’s largest ammonia producer, with 10.5 million tons/year of capacity. Ammonia is the key ingredient for fertilizer. CF’s main products are anhydrous ammonia, granular urea, urea ammonium nitrate, and ammonium nitrate products. More generally, theLaura Starks is the founder and CEO of Starks Energy Economics, LLC (since 2007). She has a degree in chemical engineering and an MBA with a concentration in finance which she has used for many years to invest personally and to ...