DENVER--(EON: Enhanced Online News)--MarkWest Energy Partners, L.P. (NYSE: MWE and the �Partnership�) and its subsidiary MarkWest Energy Finance Corporation announced today the closing of a public offering of $300,000,000 of 6.5% senior ...

(By Balachander) Markwest Energy Partners LP (NYSE: MWE) has agreed to sell certain Marcellus shale gathering assets in West Virginia to Summit Midstream Partners LP (NYSE: SMLP) for $210 million in cash.

DENVER--(EON: Enhanced Online News)--MarkWest Energy Partners, L.P. (NYSE: MWE) announced today that, as of 5:00 p.m.

DENVER--(EON: Enhanced Online News)--MarkWest Energy Partners, L.P. (NYSE: MWE and the �Partnership�) today announced that it had received, as of 5:00 p.m.

MarkWest Utica EMG, L.L.C. (MarkWest Utica EMG), a joint venture between MarkWest Energy Partners, L.P. (NYSE: MWE) (MarkWest) and The Energy and Minerals Group (EMG), is announcing an additional expansion of its large-scale midstream system to ...

MarkWest Energy Partners, L.P. (MWE) Annual Shareholder Meeting May 29, 2013 9:00 AM ET. Frank M. Semple. Good morning.

MarkWest Energy Partners, L.P. is a master limited partnership engaged in the gathering, processing and transportation of natural gas; the transportation, fractionation, storage and marketing of NGLs, and the gathering and transportation of crude oil.

MarkWest Energy Partners, L.P. is a master limited partnership engaged in the gathering, processing and transportation of natural gas; the transportation, fractionation, storage and marketing of NGLs, and the gathering and transportation of crude oil.

MarkWest Energy Partners, L.P. is a master limited partnership engaged in the gathering, processing and transportation of natural gas; the transportation, fractionation, storage and marketing of NGLs, and the gathering and transportation of crude oil.

DALLAS, June 14, 2013 /PRNewswire/ -- Swank Capital, LLC and Cushing(R) MLP Asset Management, LP announced today upcoming changes to the constituents of The Cushing(R) MLP Market Cap Index (the "Index") as part of normal index operations.