Sunoco Logistics Partners is joining with MarkWest Liberty Midstream & Resources, LLC, a partnership between MarkWest Energy Partners, L.P. and The Energy & Minerals Group in the development of Project Mariner West, a pipeline project to deliver Marcellus Shale ethane from MarkWest Liberty’s Houston, Pennsylvania processing and fractionation complex to Sarnia, Ontario, Canada. Mariner West will utilize new and existing pipelines and is anticipated to have a maximum capacity to transport up to 65,000 bpd of ethane by the third quarter of 2012. Mariner West is an expansion of Project Mariner, a pipeline and marine project developed to transport ethane produced in the Marcellus Shale basin to US Gulf Coast and international markets by mid-2013. MarkWest will make minor modifications to its natural gas processing complexes and install methane extraction facilities at its Houston complex to support deliveries to Canadian markets in 2012. MarkWest Liberty will also construct a 25mi pipeline from the Houston complex to an interconnection with an existing Sunoco Logistics pipeline at Vanport, Pennsylvania. From there, the ethane will be transported to markets in Sarnia utilizing existing Sunoco Logistics pipelines, which will be modified for ethane service.