Accrued And Other Liabilities (Schedule Of Accrued And Other Liabilities) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Accrued And Other Liabilities [Abstract]
Accrued lease operating expenses	$ 18,234	$ 20,297
Accrued capital spending	15,820	16,316
Distributions payable	14,221	14,155
Senior notes accrued interest	11,563	11,563
Accrued production and other taxes	8,138	6,270
Gas imbalance liability	6,363	6,214
Other	4,280	4,230
Total accrued and other liabilities	$ 78,619	$ 79,045

Carrying value as of the balance sheet date of obligations incurred through that date and payable for contractual rent under lease arrangements. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Carrying value as of the balance sheet date of [accrued] interest payable on all forms of debt, including trade payables, that has been incurred and is unpaid. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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- Definition

Carrying value as of the balance sheet date of obligations incurred through that date and payable arising from transactions not otherwise specified in the taxonomy. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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- Definition

Aggregate carrying amount of current liabilities (due within one year or within the normal operating cycle if longer) not separately disclosed in the balance sheet. Includes costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered and of liabilities not separately disclosed.

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