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Inventory, Linefill, Base Gas and Long-term Inventory (Tables) | 3 Months Ended
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Mar. 31, 2013
Inventory, Linefill and Base Gas and Long-term Inventory |
Components of inventory, linefill and base gas and long-term inventory | Inventory, linefill and base gas and long-term inventory consisted of the following (barrels and natural gas volumes in thousands and carrying value in millions):
|  | March 31, 2013 |  | December 31, 2012 |
|  |  |  | Unit of |  | Carrying |  | Price/ |  |  |  | Unit of |  | Carrying |  | Price/ |
|  | Volumes |  | Measure |  | Value |  | Unit (1) |  | Volumes |  | Measure |  | Value |  | Unit (1) |
Inventory |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Crude oil |  | 9,173 |  | barrels |  | $ | 780 |  | $ | 85.03 |  | 9,492 |  | barrels |  | $ | 737 |  | $ | 77.64 |
NGL |  | 2,974 |  | barrels |  | 132 |  | $ | 44.38 |  | 9,472 |  | barrels |  | 388 |  | $ | 40.96 |
Natural gas (2) |  | 26,452 |  | Mcf |  | 88 |  | $ | 3.33 |  | 20,374 |  | Mcf |  | 60 |  | $ | 2.94 |
Other |  | N/A |  |  |  | 31 |  | N/A |  | N/A |  |  |  | 24 |  | N/A |
Inventory subtotal |  |  |  |  |  | 1,031 |  |  |  |  |  |  |  | 1,209 |  |  |
Linefill and base gas |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Crude oil |  | 9,946 |  | barrels |  | 582 |  | $ | 58.52 |  | 9,919 |  | barrels |  | 583 |  | $ | 58.78 |
NGL |  | 1,400 |  | barrels |  | 68 |  | $ | 48.57 |  | 1,400 |  | barrels |  | 70 |  | $ | 50.00 |
Natural gas (2) |  | 15,755 |  | Mcf |  | 54 |  | $ | 3.43 |  | 15,755 |  | Mcf |  | 54 |  | $ | 3.43 |
Linefill and base gas subtotal |  |  |  |  |  | 704 |  |  |  |  |  |  |  | 707 |  |  |
Long-term inventory |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Crude oil |  | 2,035 |  | barrels |  | 155 |  | $ | 76.17 |  | 1,962 |  | barrels |  | 149 |  | $ | 75.94 |
NGL |  | 2,221 |  | barrels |  | 89 |  | $ | 40.07 |  | 3,238 |  | barrels |  | 125 |  | $ | 38.60 |
Long-term inventory subtotal |  |  |  |  |  | 244 |  |  |  |  |  |  |  | 274 |  |  |
Total |  |  |  |  |  | $ | 1,979 |  |  |  |  |  |  |  | $ | 2,190 |  |  |
(1) Price per unit of measure represents a weighted average associated with various grades, qualities and locations. Accordingly, these prices may not coincide with any published benchmarks for such products. (2) The volumetric ratio of Mcf of natural gas to crude Btu equivalent is 6:1; thus, natural gas volumes can be approximately converted to barrels by dividing by 6.

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- Definition Tabular disclosure of the carrying amount as of the balance sheet date of inventory, linefill and base gas and long-term inventory. This may include, but is not limited to, the volumes, unit of measure, total value, and price per unit of each of the major classes of inventory. + References No definition available. + Details
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