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Fair Value Disclosures | 12 Months Ended
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Dec. 31, 2018
Fair Value Disclosures [Abstract] |
Fair Value Disclosures | Fair Value Disclosures Fair Value Methods and Assumptions - Financial Assets and Liabilities The following methods and assumptions were used in estimating fair value for our financial assets and liabilities:
• | Energy commodity derivatives contracts. These include exchange-traded futures contracts related to petroleum products. These contracts are carried at fair value on our consolidated balance sheets and are valued based on quoted prices in active markets. See Note 12 – Derivative Financial Instruments for further disclosures regarding these contracts.
• | Interest rate contracts. These include forward-starting interest rate swap agreements to hedge against the risk of variability of interest payments on future debt. These contracts are carried at fair value on our consolidated balance sheets and are valued based on an assumed exchange, at the end of each period, in an orderly transaction with a market participant in the market in which the financial instrument is traded. The exchange value was calculated using present value techniques on estimated future cash flows based on forward interest rate curves. See Note 12 – Derivative Financial Instruments for further disclosures regarding these contracts.
• | Long-term receivables. These primarily include payments receivable under a direct-financing leasing arrangement and cost reimbursement payments receivable. These receivables were recorded at fair value on our consolidated balance sheets, using then-current market rates to estimate the present value of future cash flows.
• | Guarantees. These primarily include an indemnity agreement we entered into with OMERS in connection with the partial sale of our interest in BridgeTex. These guarantees were recorded at fair value on our consolidated balance sheets upon initial recognition, using probability-weighted potential outcome scenarios to estimate the value of such guarantees.
• | Debt. The fair value of our publicly traded notes was based on the prices of those notes at December 31, 2017 and 2018; however, where recent observable market trades were not available, prices were determined using adjustments to the last traded value for that debt issuance or by adjustments to the prices of similar debt instruments of peer entities that are actively traded. The carrying amount of borrowings, if any, under our revolving credit facility and our commercial paper program approximates fair value due to the frequent repricing of these obligations.
Fair Value Measurements - Financial Assets and Liabilities The following tables summarize the carrying amounts, fair values and fair value measurements recorded or disclosed as of December 31, 2017 and 2018, based on the three levels established by ASC 820; Fair Value Measurements and Disclosures (in thousands):
|  |  |  |  |  | Fair Value Measurements as of December 31, 2017 using:
Assets (Liabilities) |  | Carrying Amount |  | Fair Value |  | Quoted Prices in Active Markets for Identical Assets (Level 1) |  | Significant Other Observable Inputs (Level 2) |  | Significant Unobservable Inputs (Level 3)
Energy commodity derivatives contracts |  | $ | (26,085 | ) |  | $ | (26,085 | ) |  | $ | (26,085 | ) |  | $ | — |  |  | $ | — |
Interest rate contracts |  | $ | 12,177 |  |  | $ | 12,177 |  |  | $ | — |  |  | $ | 12,177 |  |  | $ | — |
Long-term receivables |  | $ | 27,676 |  |  | $ | 27,676 |  |  | $ | — |  |  | $ | — |  |  | $ | 27,676 |
Debt |  | $ | (4,524,492 | ) |  | $ | (4,826,480 | ) |  | $ | — |  |  | $ | (4,826,480 | ) |  | $ | — |
|  |  |  |  |  | Fair Value Measurements as of December 31, 2018 using:
Assets (Liabilities) |  | Carrying Amount |  | Fair Value |  | Quoted Prices in Active Markets for Identical Assets (Level 1) |  | Significant Other Observable Inputs (Level 2) |  | Significant Unobservable Inputs (Level 3)
Energy commodity derivatives contracts |  | $ | 55,011 |  |  | $ | 55,011 |  |  | $ | 55,011 |  |  | $ | — |  |  | $ | — |
Interest rate contracts |  | $ | (8,126 | ) |  | $ | (8,126 | ) |  | $ | — |  |  | $ | (8,126 | ) |  | $ | — |
Long-term receivables |  | $ | 20,844 |  |  | $ | 20,844 |  |  | $ | — |  |  | $ | — |  |  | $ | 20,844 |
Guarantees |  | $ | (16,409 | ) |  | $ | (16,409 | ) |  | $ | — |  |  | $ | — |  |  | $ | (16,409 | )
Debt |  | $ | (4,270,869 | ) |  | $ | (4,224,373 | ) |  | $ | — |  |  | $ | (4,224,373 | ) |  | $ | — |

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- Definition The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -URI http://asc.fasb.org/topic&trid=2155941 + Details
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