*Data is provided by Barchart.com. Data reflects weightings calculated at the beginning of each month. Data is subject to change.
**Green highlights the top performing ETF by % change in the past 100 days.
Company Description (as filed with the SEC)
MarkWest Energy Partners, L.P. is a publicly-traded Delaware limited
partnership formed in January 2002. We are a master limited partnership engaged
in the gathering, processing and transportation of natural gas; the gathering,
transportation, fractionation, storage and marketing of NGLs; and the gathering
and transportation of crude oil. We have a leading presence in many
unconventional gas plays including the Marcellus Shale, Utica Shale, Huron/Berea
Shale, Haynesville Shale, Woodford Shale and Granite Wash formation. We conduct
our operations in the following operating segments: Marcellus, Utica, Northeast
and Southwest. The Marcellus segment was formerly known as the Liberty segment.
Maps detailing the individual assets can be found on our Internet website,
www.markwest.com. For more information on these segments, see Our Operating
Segments discussion below. ... More ...
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