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Supplemental Cash Flow Information | 12 Months Ended
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Dec. 31, 2012
Supplemental Cash Flow Information |
17. | Supplemental Cash Flow Information
| a) | The changes in operating assets and liabilities for the years ended December 31, 2012, 2011, and 2010, are as follows:
|  | Year Ended December 31, |
|  | 2012 |  |  | 2011 |  |  | 2010 |
Accounts receivable |  |  | (132,873 | ) |  |  | (68,914 | ) |  |  | (21,820 | )
Prepaid expenses and other assets |  |  | 19,741 |  |  |  | (8,225 | ) |  |  | 12,719 |
Accounts payable |  |  | 18,408 |  |  |  | 12,216 |  |  |  | (11,002 | )
Accrued and other liabilities |  |  | (20,485 | ) |  |  | (19,424 | ) |  |  | 65,518 |
|  |  | (115,209 | ) |  |  | (84,347 | ) |  |  | 45,415 |
| b) | Cash interest paid, including realized interest rate swap settlements, during the years ended December 31, 2012, 2011, and 2010, totaled $274.2 million, $279.1 million and $271.3 million, respectively. In addition, during the years ended December 31, 2012, 2011, and 2010, cash interest paid relating to interest rate swap amendments and terminations totaled $nil, $149.7 million and $nil, respectively.
| c) | During the year ended December 31, 2010, an unrelated party contributed a shuttle tanker with a value of $35.0 million to a subsidiary of the Company in exchange for a 33% equity interest in the subsidiary as described in Note 16(e) to these consolidated financial statements. This contribution has been treated as a non-cash transaction in the Company’s consolidated statement of cash flows.

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- Definition The entire disclosure for supplemental cash flow activities, including cash, noncash, and part noncash transactions, for the period. Noncash is defined as information about all investing and financing activities of an enterprise during a period that affect recognized assets or liabilities but that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4332-108586 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4313-108586 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4304-108586 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 32 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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