Segment Disclosures

On July 31, 2015, we acquired the remaining 50% equity interest in CF Fertilisers UK not previously owned by us. See Note 4—Acquisitions and Divestitures and Note 8—Equity Method Investments for additional information. CF Fertilisers UK has nitrogen manufacturing complexes located in Ince, United Kingdom, and Billingham, United Kingdom. The Ince complex produces ammonia, AN and NPKs while the Billingham complex produces ammonia and AN. Our reportable segment structure reflects how our CODM, as defined under U.S. GAAP, assesses the performance of our operating segments and makes decisions about resource allocation. In the third quarter of 2015, we changed our reportable segment structure to separate AN from our Other segment as our AN products increased in significance as a result of the CF Fertilisers UK acquisition. Our reportable segments now consist of ammonia, granular urea, UAN, AN, Other, and phosphate. These segments are differentiated by products. Historical financial results have been restated to reflect the new reportable segment structure on a comparable basis.

We sold our phosphate mining and manufacturing business on March 17, 2014. See Note 4—Acquisitions and Divestitures for additional information. The phosphate segment reflects the reported results of the phosphate business through March 17, 2014, plus the continuing sales of the phosphate inventory in the distribution network after March 17, 2014. The remaining phosphate inventory was sold in the second quarter of 2014; therefore, the phosphate segment does not have operating results subsequent to that quarter. The phosphate segment will continue to be included until the reporting of comparable period phosphate results ceases.

Upon selling the phosphate business, we began to supply Mosaic with ammonia produced by our PLNL joint venture. The contract to supply ammonia to Mosaic from our PLNL joint venture represents the continuation of a supply practice that previously existed between our former phosphate mining and manufacturing business and other operations of the Company. Prior to March 17, 2014, PLNL sold ammonia to us for use in the phosphate business and the cost was included in our production costs in our phosphate segment. Subsequent to the sale of the phosphate business, we now sell the PLNL-sourced ammonia to Mosaic. The revenue from these sales to Mosaic and costs to purchase the ammonia from PLNL are now included in our ammonia segment. Our 50% share of the operating results of our PLNL joint venture continues to be included in our equity in earnings of operating affiliates in our consolidated statements of operations. Because of the significance of this continuing supply practice, in accordance with U.S. GAAP, the phosphate mining and manufacturing business is not reported as discontinued operations in our consolidated statements of operations.

Our management uses gross margin to evaluate segment performance and allocate resources. Total other operating costs and expenses (consisting of selling, general and administrative expenses and other operating—net) and non-operating expenses (interest and income taxes) are centrally managed and are not included in the measurement of segment profitability reviewed by management.

Our assets, with the exception of goodwill, are not monitored by or reported to our CODM by segment; therefore, we do not present total assets by segment. Goodwill by segment is presented in Note 7—Goodwill and Other Intangible Assets.

The following is a description of our six reportable segments:

•

Our ammonia segment produces anhydrous ammonia (ammonia), which is our most concentrated nitrogen fertilizer product as it contains 82% nitrogen. The results of our ammonia segment consist of sales of ammonia to external customers. In addition, ammonia is the “basic” nitrogen product that we upgrade into other nitrogen products such as granular urea, UAN and AN. We produce ammonia at all of our nitrogen manufacturing complexes.


•	Our granular urea segment produces granular urea, which contains 46% nitrogen. Produced from ammonia and carbon dioxide, it has the highest nitrogen content of any of our solid nitrogen fertilizers. Granular urea is produced at our Courtright, Ontario; Donaldsonville, Louisiana; and Medicine Hat, Alberta nitrogen complexes.


•	Our UAN segment produces urea ammonium nitrate solution (UAN). UAN, a liquid fertilizer product with a nitrogen content that typically ranges from 28% to 32%, is produced by combining urea and ammonium nitrate. UAN is produced at our nitrogen complexes in Courtright, Ontario; Donaldsonville, Louisiana; Port Neal, Iowa; Verdigris, Oklahoma; Woodward, Oklahoma; and Yazoo City, Mississippi.


•	Our AN segment produces ammonium nitrate (AN). AN is a nitrogen-based product with a nitrogen content between 29% and 35%. AN is used as nitrogen fertilizer and is also used by industrial customers for commercial explosives and blasting systems. AN is produced at our nitrogen complexes in Yazoo City, Mississippi and Ince and Billingham, United Kingdom.

•

Our Other segment primarily includes diesel exhaust fluid (DEF), urea liquor, nitric acid and compound fertilizer products (NPKs). DEF is an aqueous urea solution typically made with 32.5% high-purity urea and 67.5% deionized water. Urea liquor is a liquid product that we sell in concentrations of 40%, 50% and 70% urea as a chemical intermediate. Nitric acid is a nitrogen-based product with a nitrogen content of 22.2%. NPKs are solid granular fertilizer products for which the nutrient content is a combination of nitrogen, phosphorus and potassium.


•	Our phosphate segment principal products were diammonium phosphate (DAP) and monoammonium phosphate (MAP). Starting with the third quarter of 2014, the phosphate segment ceased to have reported results as we completed the sale of our phosphate mining and manufacturing business in the first quarter of 2014 and the remaining phosphate inventory was completely sold during the second quarter of 2014.

Segment data for sales, cost of sales and gross margin for 2015, 2014 and 2013 are presented in the tables below.



	Ammonia		Granular Urea⁽¹⁾		UAN⁽¹⁾		AN⁽¹⁾		Other⁽¹⁾		Phosphate		Consolidated
	(in millions)
Year ended December 31, 2015
Net sales	$	1,523.1	$	788.0	$	1,479.7	$	294.0	$	223.5	$	—	$	4,308.3
Cost of sales	883.7		469.5		954.5		290.8		162.7		—		2,761.2
Gross margin	$	639.4	$	318.5	$	525.2	$	3.2	$	60.8	$	—	1,547.1
Total other operating costs and expenses													319.0
Equity in earnings of operating affiliates													(35.0		)
Operating earnings													$	1,193.1
Year ended December 31, 2014
Net sales	$	1,576.3	$	914.5	$	1,669.8	$	242.7	$	171.5	$	168.4	$	4,743.2
Cost of sales	983.2		516.6		997.4		189.1		120.1		158.3		2,964.7
Gross margin	$	593.1	$	397.9	$	672.4	$	53.6	$	51.4	$	10.1	1,778.5
Total other operating costs and expenses													205.2
Gain on sale of phosphate business													750.1
Equity in earnings of operating affiliates													43.1
Operating earnings													$	2,366.5
Year ended December 31, 2013
Net sales	$	1,437.9	$	924.6	$	1,935.1	$	215.1	$	165.1	$	796.9	$	5,474.7
Cost of sales	656.5		410.1		895.6		155.9		114.4		722.0		2,954.5
Gross margin	$	781.4	$	514.5	$	1,039.5	$	59.2	$	50.7	$	74.9	2,520.2
Total other operating costs and expenses													150.2
Equity in earnings of operating affiliates													41.7
Operating earnings													$	2,411.7

_______________________________________________________________________________


⁽¹⁾	The cost of ammonia that is upgraded into other products is transferred at cost into the upgraded product results.



	Ammonia		Granular Urea		UAN		AN		Other		Phosphate⁽¹⁾		Corporate		Consolidated
	(in millions)
Depreciation, depletion and amortization
Year ended December 31, 2015	$	95.4	$	50.5	$	191.6	$	65.6	$	35.2	$	—	$	41.3	$	479.6
Year ended December 31, 2014	$	69.0	$	37.5	$	179.3	$	46.5	$	20.4	$	—	$	39.8	$	392.5
Year ended December 31, 2013	$	58.2	$	37.4	$	172.6	$	41.0	$	19.2	$	42.3	$	39.9	$	410.6

_______________________________________________________________________________


⁽¹⁾	The assets and liabilities of our phosphate business were classified as held for sale as of December 31, 2013; therefore, no depreciation, depletion or amortization was recorded in 2014 for the related property, plant and equipment.

Enterprise-wide data by geographic region is as follows:



	Year ended December 31,
	2015		2014		2013
	(in millions)
Sales by geographic region (based on destination of shipments):
United States	$	3,484.9	$	3,994.0	$	4,497.8
Foreign:
Canada	490.0		543.8		508.5
Other foreign	333.4		205.4		468.4
Total foreign	823.4		749.2		976.9
Consolidated	$	4,308.3	$	4,743.2	$	5,474.7



	December 31,
	2015		2014		2013
	(in millions)
Property, plant and equipment—net by geographic region:
United States	$	7,201.5	$	4,987.0	$	3,528.8
Foreign:
Canada	497.3		538.8		572.9
United Kingdom	840.2		—		—
Total foreign	1,337.5		538.8		572.9
Consolidated	$	8,539.0	$	5,525.8	$	4,101.7

Our principal customers are cooperatives, independent fertilizer distributors and industrial users. None of our customers accounted for more than ten percent of our consolidated sales in 2015, 2014 or 2013.