Crestwood Midstream Partners LP (NYSE: CMLP) and Crestwood Holdings Partners LLC announced their joint venture, Crestwood Marcellus Midstream LLC, has completed the previously announced acquisition of Antero Resources Appalachian Corp's Marcellus shale gathering system assets. The effective date of the acquisition is Jan. 1, 2012. Cash paid at closing totaled $376.8 million, which included preliminary closing adjustments of $1.8 million, related to first quarter 2012 operations and capital spending. 

The acquired assets include 34 miles of low pressure gathering pipelines located in Harrison and Doddridge Counties, W. V., which are ...