DENVER--(BUSINESS WIRE)--Jan. 12, 2012--
MarkWest Energy Partners, L.P. (NYSE: MWE) will announce fourth quarter
and full year 2011 financial results after market close on Tuesday,
February 28, 2012, and will host a conference call to discuss the
results at 4:00 p.m. ET on Wednesday, February 29, 2012.
The conference call can be accessed by dialing (800) 475-0218 (passcode
“MarkWest”) or via webcast by accessing the “Investor Relations” page of
the MarkWest website at www.markwest.com.
A replay of the conference call will be accessible on the MarkWest
website or by dialing (866) 453-2338 (no passcode required).
MarkWest Energy Partners, L.P. is a master limited partnership
engaged in the gathering, transportation, and processing of natural gas;
the transportation, fractionation, marketing, and storage of natural gas
liquids; and the gathering and transportation of crude oil. MarkWest has
extensive natural gas gathering, processing, and transmission operations
in the southwest, Gulf Coast, and northeast regions of the United
States, including the Marcellus Shale, and is the largest natural gas
processor and fractionator in the Appalachian region.
This press release includes “forward-looking statements.” All
statements other than statements of historical facts included or
incorporated herein may constitute forward-looking statements. Actual
results could vary significantly from those expressed or implied in such
statements and are subject to a number of risks and uncertainties.
Although MarkWest believes that the expectations reflected in the
forward-looking statements are reasonable, MarkWest can give no
assurance that such expectations will prove to be correct. The
forward-looking statements involve risks and uncertainties that affect
operations, financial performance, and other factors as discussed in
filings with the Securities and Exchange Commission. Among the
factors that could cause results to differ materially are those risks
discussed in the periodic reports MarkWest files with the SEC, including
its Annual Report on Form 10-K for the year ended December 31, 2010, and
its Quarterly Reports on Form 10-Q for the quarters ended June 30, 2011,
and September 30, 2011. You are urged to carefully review and consider
the cautionary statements and other disclosures made in those filings,
specifically those under the heading “Risk Factors.” MarkWest
does not undertake any duty to update any forward-looking statement
except as required by law.

Source: MarkWest Energy Partners, L.P.
MarkWest Energy Partners, L.P.
Frank Semple, 866-858-0482
Chairman,
President & CEO
or
Nancy Buese, 866-858-0482
Senior
VP & CFO
or
Dan Campbell, 866-858-0482
VP of Finance
& Treasurer
or
investorrelations@markwest.com