Property, Plant & Equipment (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2011	Dec. 31, 2010
Property, Plant and Equipment, Net, by Type [Abstract]
Cost	$ 260,230
Accumulated Depreciation	(13,644)
Net Book Value	246,586	149,104
Gathering systems [Member]
Property, Plant and Equipment, Net, by Type [Abstract]
Cost	226,747
Accumulated Depreciation	(7,736)
Net Book Value	219,011	141,817
Computer equipment [Member]
Property, Plant and Equipment, Net, by Type [Abstract]
Cost	2,426
Accumulated Depreciation	(1,401)
Net Book Value	1,025	993
Office equipment [Member]
Property, Plant and Equipment, Net, by Type [Abstract]
Cost	444
Accumulated Depreciation	(335)
Net Book Value	109	124
Leasehold improvements [Member]
Property, Plant and Equipment, Net, by Type [Abstract]
Cost	686
Accumulated Depreciation	(379)
Net Book Value	307	151
Land [Member]
Property, Plant and Equipment, Net, by Type [Abstract]
Cost	22,150
Accumulated Depreciation	0
Net Book Value	22,150	2,437
Other [Member]
Property, Plant and Equipment, Net, by Type [Abstract]
Cost	7,777
Accumulated Depreciation	(3,793)
Net Book Value	$ 3,984	$ 3,582