Terra Nitrogen Company, L.P. (TNCLP) is a limited partnership that produces nitrogen fertilizer products. The Company's principal products are anhydrous ammonia (ammonia) and urea ammonium nitrate solutions (UAN), which it manufactures at its facility in Verdigris, Oklahoma. Its nitrogen products are used primarily by farmers. For the year ended December 31, 2016, it had sold 2.2 million tons of nitrogen fertilizers. The Company has production facility, in Verdigris, Oklahoma. As of December 31, 2016, it had two ammonia plants, two nitric acid plants and two UAN plants. The Company conducts its operations through an operating partnership, Terra Nitrogen, Limited Partnership (TNLP). Terra Nitrogen GP Inc. is the general partner of both TNCLP and TNLP and owns a 0.025% general partner interest in each of TNCLP and TNLP. The General Partner is an indirect subsidiary of CF Industries Holdings, Inc., which is engaged in the manufacturing and distribution of nitrogen products.