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Inventory Financing Agreements (Details) barrel / d in Thousands |  |  | 3 Months Ended | 9 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | ---
May 08, 2017 USD ($) | Jun. 01, 2015 USD ($) barrel / d | Sep. 30, 2017 USD ($) | Sep. 30, 2016 USD ($) | Sep. 30, 2017 USD ($) | Sep. 30, 2016 USD ($) | Jul. 31, 2017 USD ($) | Dec. 31, 2016 USD ($) | Feb. 29, 2016 USD ($) installment | Sep. 30, 2015 USD ($) payment
Supply Commitment [Line Items] |  |  |  |  |  |  |  |  |  |
Supply and exchange agreement expenses |  |  | $ 7,419,000 | $ 11,232,000 | $ 25,500,000 | $ 21,951,000 |  |  |  |
Supply and Offtake Agreements |  |  |  |  |  |  |  |  |  |
Supply Commitment [Line Items] |  |  |  |  |  |  |  |  |  |
Agreement extension term | 1 year |  |  |  |  |  |  |  |  |
Forward sale liability | $ 30,000,000 |  |  |  |  |  |  |  |  |
Barrels of crude per day provided (up to) | barrel / d |  | 94 |  |  |  |  |  |  |  |
Handling fees |  |  | 3,400,000 | 1,700,000 | 9,800,000 | 5,600,000 |  |  |  |
Supply and exchange agreement expenses |  |  | 800,000 | $ 900,000 | 2,300,000 | $ 2,200,000 |  |  |  |
Amount of deferred payment arrangement |  | $ 125,000,000 |  |  |  |  |  |  |  |
Percentage of receivables and inventory for deferred payment arrangement |  | 85.00% |  |  |  |  |  |  |  |
Deferral arrangement fee |  | $ 1,300,000 |  |  |  |  |  |  |  |
Variable interest rate basis |  | P3M |  |  |  |  |  |  |  |
Capacity of deferred payment arrangement |  |  | 75,500,000 |  | 75,500,000 |  |  | $ 59,400,000 |  |
Outstanding amount of deferred payment arrangement |  |  | 41,800,000 |  | 41,800,000 |  |  | 43,300,000 |  |
Fee agreement receivable |  |  | $ (10,300,000) |  | $ (10,300,000) |  | $ (3,000,000) | $ (14,600,000) | $ (14,600,000) | $ (18,000,000)
Number of fee agreement payments |  |  |  |  |  |  |  |  | 18 | 14
Supply and Offtake Agreements | London Interbank Offered Rate (LIBOR) |  |  |  |  |  |  |  |  |  |
Supply Commitment [Line Items] |  |  |  |  |  |  |  |  |  |
Margin on LIBOR rate |  | 3.75% |  |  |  |  |  |  |  |
Deferred payment availability fee |  | 0.75% |  |  |  |  |  |  |  |

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