MarkWest Energy Partners Reports Record Distributable Cash Flow and Full-Year Distribution Growth of 12.6 Percent

DENVER--(BUSINESS WIRE)--MarkWest Energy Partners, L.P. (NYSE: MWE) (the Partnership) today reported record quarterly cash available for distribution to common unitholders, or distributable cash flow (DCF), of $111.8 million for the three months ended December 31, 2012, and $416.4 million for the year ended December 31, 2012. Distributable cash flow for the three months and year ended December 31, 2012, represents distribution coverage of 106 percent and 112 percent, respectively. The fourth quarter distribution of $105.4 million, or $0.82 per common unit, was paid to unitholders on February 14, 2013. The fourth quarter 2012 distribution represents an increase of $0.01 per common unit over the third quarter 2012 distribution and a full-year increase of 12.6 percent compared to 2011. As a Master Limited Partnership, cash distributions to common unitholders are largely determined based on DCF. A reconciliation of DCF to net income, the most directly comparable GAAP financial measure, is provided within the financial tables of this press release.