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REVENUES FROM MAJOR CUSTOMERS (Tables) | 12 Months Ended
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Dec. 31, 2012
Revenues from Customers | Revenues from customers comprising 10% or more of the Company’s total revenue for the years ended December 31 are summarized as follows (in thousands):
|  | 2012 |  |  | 2011 |  |  | 2010 |
Chevron Corporation |  | $ | 192,370 |  |  | $ | 63,769 |  |  | $ | — |
Williams Field Services-Gulf Coast Company L.P. |  |  | 124,841 |  |  |  | — |  |  |  | — |
Eni US Operating Co. Inc. |  |  | — |  |  |  | — |  |  |  | 38,497 |
American Electric Power Service Corporation |  |  | — |  |  |  | — |  |  |  | 27,858 |
Versabuild, LLC |  |  | — |  |  |  | — |  |  |  | 27,407 |

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- Definition Tabular disclosure of the extent of the entity's reliance on its major customers, if revenues from transactions with a single external customer amount to 10 percent or more of entity revenues, including the disclosure of that fact, the total amount of revenues from each such customer, and the identity of the reportable segment or segments reporting the revenues. The entity need not disclose the identity of a major customer or the amount of revenues that each segment reports from that customer. For these purposes, a group of companies known to the entity to be under common control is considered a single customer, and the federal government, a state government, a local government such as a county or municipality, or a foreign government is each considered a single customer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 131 -Paragraph 39 + Details
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