Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Mar. 31, 2014		Dec. 31, 2013
Common units issued	218,903,498		218,895,515
Units outstanding	218,903,498		218,895,515
Accounts receivable, net	$ 100,499	[1]	$ 83,943	[1],[2]
Other current assets	7,997	[3]	10,799	[2],[3]
Accounts and natural gas imbalance payables	30,219	[4]	39,589	[2],[4]
Accrued liabilities	125,061	[5]	138,034	[2],[5]
Affiliated Entity [Member]
Accounts receivable, net	57,500		47,800
Other current assets	1,200		100
Accounts and natural gas imbalance payables	100		2,300
Accrued liabilities	$ 0		$ 100

[1] Accounts receivable, net includes amounts receivable from affiliates (as defined in Note 1) of $57.5 million and $47.8 million as of March 31, 2014, and December 31, 2013, respectively.

[2] Financial information has been recast to include the financial position and results attributable to the TEFR Interests. See Note 1 and Note 2.

[3] Other current assets includes natural gas imbalance receivables from affiliates of $1.2 million and $0.1 million as of March 31, 2014, and December 31, 2013, respectively.

[4] Accounts and natural gas imbalance payables includes amounts payable to affiliates of $0.1 million and $2.3 million as of March 31, 2014, and December 31, 2013, respectively.

[5] Accrued liabilities includes amounts payable to affiliates of zero and $0.1 million as of March 31, 2014, and December 31, 2013, respectively.