Pipeline operator MarkWest Energy Partners L.P. (MWE) announced the closure of its previously announced public offering. MarkWest priced the public offering of 6,900,000...(read more
We are upgrading MarkWest Energy Partners (MWE) to Outperform from Neutral, reflecting its promising future prospects. The master limited partnership's (MLP) targeted growth capital...(read more
Morgan Keegan is downgrading MarkWest Energy (NYSE: MWE) units by one step, to Market Perform based on valuation as investors in MWE units have realized a total return of approximately 33% since May 5 when we last upgraded.