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Inventory	6 Months Ended
Inventory	Jun. 30, 2014
Inventory [Abstract]
Inventory	(4) INVENTORY Inventory recorded in current assets includes $35 million at June 30, 2014 and $34 million at December 31, 2013 for tubular and other equipment used in the Company’s E&P segment, and $2 million at June 30, 2014 and $4 million at December 31, 2013 for natural gas in underground storage owned by the E&P segment. Other long-term assets include $17 million at June 30, 2014 and $15 million at December 31, 2013, respectively, for inventory held by the Midstream Services segment consisting primarily of pipe that will be used to construct gathering systems.

The entire disclosure for inventory. This may include, but is not limited to, the basis of stating inventory, the method of determining inventory cost, the major classes of inventory, and the nature of the cost elements included in inventory. If inventory is stated above cost, accrued net losses on firm purchase commitments for inventory and losses resulting from valuing inventory at the lower-of-cost-or-market may also be included. For LIFO inventory, may disclose the amount and basis for determining the excess of replacement or current cost over stated LIFO value and the effects of a LIFO quantities liquidation that impacts net income.

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