CVR Partners (NYSE: UAN ) is a master limited partnership (MLP), engaged in the production of nitrogen fertilizers in the heartland of the Midwest United States. Most of its sales are of urea ammonium nitrate ("UAN"), with the balance beingInvesting since I was 16. Which was 49 years ago. Learned a lot, but the most important lesson is humility and understanding that even if I am right in 3 years, the market can destroy me in the meantime. I have a longstanding interest in technology and biotech stocks, eve ...