For the year ended December 31, 2007, the partnership reported net income of $17.2 million, compared to $70.1 million for the year ended December 31, 2006.

The partnership has reported distributable cash flow of $47.7 million for the fourth quarter of 2007, a 76% increase, compared to $27.1 million for the fourth quarter of 2006. For the year ended December 31, 2007, the partnership reported distributable cash flow of $162.6 million, a 38% increase, compared to $117.9 million for the comparable period in 2006.

Frank Semple, president and CEO of MarkWest Energy Partners, said: Virtually all of our hedge transactions are with our bank group, which enhances our financial flexibility and liquidity. The comprehensive hedge program extends through the end of 2011 with approximately 75% of our 2008 commodity exposure hedged through a combination of fixed-price swaps, costless collars and puts.