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Major Customers and Suppliers | 12 Months Ended
--- | ---
Dec. 31, 2011
Major Customers and Suppliers |
Major Customers and Suppliers |
(22) Major Customers and Suppliers Sales to major customers were as follows:
|  | Year Ended December 31, |
--- | --- | --- | ---
|  | 2011 |  | 2010 |  | 2009 |
Petroleum |  |  |  |  |  |  |  |  |  |
Customer A |  |  | 15 | % |  | 14 | % |  | 14 | %
Customer B |  |  | 12 | % |  | 11 | % |  | 10 | %
Customer C |  |  | 9 | % |  | 10 | % |  | 11 | %
|  |  | 36 | % |  | 35 | % |  | 35 | %
Nitrogen Fertilizer |  |  |  |  |  |  |  |  |  |
Customer D |  |  | 17 | % |  | 12 | % |  | 15 | %
Customer E |  |  | 12 | % |  | 10 | % |  | 9 | %
|  |  | 29 | % |  | 22 | % |  | 24 | %
In connection with an agreement entered into on December 31, 2008, the Petroleum Segment obtained crude oil from one supplier for 2009, 2010 and 2011. The crude oil purchased from this supplier is governed by a long-term contract. Purchases contracted as a percentage of the total cost of product sold (exclusive of depreciation and amortization) for each of the periods were as follows:
|  | Year Ended December 31, |
--- | --- | --- | ---
|  | 2011 |  | 2010 |  | 2009 |
Petroleum |  |  |  |  |  |  |  |  |  |
Supplier A |  |  | 65 | % |  | 64 | % |  | 69 | %
The Nitrogen Fertilizer Segment maintains long-term contracts with one supplier. Purchases from this supplier as a percentage of direct operating expenses (exclusive of depreciation and amortization) were as follows:
|  | Year Ended December 31, |
--- | --- | --- | ---
|  | 2011 |  | 2010 |  | 2009 |
Nitrogen Fertilizer |  |  |  |  |  |  |  |  |  |
Supplier B |  |  | 5 | % |  | 5 | % |  | 5 | %

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- Definition Represents entire disclosure of the percentage of revenues from each major customer and percentage of cost of good sold from each major supplier. + References No definition available. + Details
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