Terra Nitrogen Company, L.P. announced consolidated earnings results for the fourth quarter and full year ended December 31, 2016. For the quarter, the company reported the company reported net earnings of $44.1 million on net sales of $93.4 million for the quarter ended December 31, 2016. This compares to net earnings of $79.2 million on net sales of $151.3 million for the 2015 fourth quarter. Results for the fourth quarter of 2016 included an unrealized net mark-to-market gain on natural gas derivatives of $13.6 million compared to a loss of $12.6 million in the fourth quarter of 2015. The derivative portfolio at December 31, 2016 includes natural gas derivatives that hedge a portion of natural gas purchases through 2018. Earnings from operations were $44.1 million against $79.2 million a year ago. Net earnings per common unit were $1.85 against $2.49 a year ago. For the full year 2016, the company reported net earnings of $209.3 million on net sales of $418.3 million. This compares to net earnings of $306.9 million on net sales of $581.7 million for the full year 2015. Results for the full year 2016 included an unrealized net mark-to-market gain on natural gas derivatives of $35.3 million compared to an unrealized net mark-to-market loss of $23.1 million for the full year 2015. Earnings from operations were $209.2 million against $306.9 million a year ago. Net earnings per common unit were $7.56 against $10.06 a year ago.