$ 6,709

$ 7,072

(4,764)

(2,220)

1,945

4,852

Liability Derivatives [Abstracts]

7,570

4,780

(4,764)

(2,220)

Commodity-Related Derivatives [Member]

2,806

2,560

Asset Derivatives [Abstracts]

6,709

6,842

(4,764)

(1,990)

1,945

4,852

Liability Derivatives [Abstracts]

7,570

4,345

(4,764)

(1,990)

Interest Rate Swaps [Member]

2,806

2,355

Asset Derivatives [Abstracts]

230

(230)

Liability Derivatives [Abstracts]

435

(230)

$ 0

$ 205

Fair value of liability associated with financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Fair value, before effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets elected not to be offset. Excludes assets not subject to a master netting arrangement.

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Fair value of asset associated with financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset.