Investments in Unconsolidated Affiliates (Tables)

6 Months Ended

Jun. 30, 2011

Investments in Unconsolidated Affiliates (Tables) [Abstract]

Investments in unconsolidated affiliates

		Ownership
Equity Method Investment	Structure	Percentage			Segment
Webb/Duval Gatherers (“Webb Duval”)	Texas general partnership		62.50	%	Texas
Eagle Ford Gathering LLC (“Eagle Ford Gathering”)	Delaware limited liability company		50.00	%	Texas
Liberty Pipeline Group, LLC (“Liberty Pipeline Group”)	Delaware limited liability company		50.00	%	Texas
Southern Dome, LLC (“Southern Dome”)	Delaware limited liability company		69.50	%(1)	Oklahoma
Bighorn Gas Gathering, L.L.C. (“Bighorn”)	Delaware limited liability company		51.00	%	Rocky Mountains
Fort Union Gas Gathering, L.L.C. (“Fort Union”)	Delaware limited liability company		37.04	%	Rocky Mountains

(1) Represents Copano’s right to distributions from Southern Dome

Summarized financial information for significant equity investments

	As of and for the Six Months Ended June 30,
	2011						2010
	Bighorn			Fort Union			Bighorn			Fort Union
	(In thousands)
Operating revenue	$	13,903		$	27,104		$	15,973		$	28,009
Operating expenses		(4,589	)		(3,455	)		(5,961	)		(3,926	)
Depreciation and amortization		(2,587	)		(3,996	)		(2,549	)		(3,629	)
Interest income (expense) and other		42			(1,228	)		22			(2,332	)
Net income		6,769			18,425			7,485			18,122
Ownership %		51	%		37.04	%		51	%		37.04	%
		3,452			6,825			3,817			6,712
Priority allocation of earnings and other		254			—			195			—
Copano’s share of management fees charged		98			46			142			44
Amortization of difference between the carried investment and the underlying equity in net assets		(5,629	)		(3,212	)		(31,084	)		(3,212	)
Equity in (loss) earnings from unconsolidated affiliates	$	(1,825	)	$	3,659		$	(26,930	)	$	3,544
Distributions	$	4,956		$	7,408		$	5,497		$	5,371
Current assets	$	5,912		$	9,721		$	6,605		$	14,437
Noncurrent assets		86,667			200,270			90,891			208,624
Current liabilities		(1,084	)		(18,782	)		(1,238	)		(19,852	)
Noncurrent liabilities		(282	)		(66,779	)		(257	)		(81,565	)
Net assets	$	91,213		$	124,430		$	96,001		$	121,644

Summarized financial information of other unconsolidated investments

	As of and for the
	Six Months Ended June 30,
	2011			2010
	(In thousands)
Operating revenue	$	14,029		$	17,024
Operating expenses		(11,883	)		(14,173	)
Depreciation and amortization		(756	)		(759	)
Other income, net		3			5
Net income	$	1,393		$	2,097
Current assets	$	10,728		$	4,129
Noncurrent assets		215,259			21,198
Current liabilities		(25,111	)		(6,041	)
Noncurrent liabilities		(898	)		(60	)
Net assets	$	199,978		$	19,226