MarkWest Energy Partners (NYSE: MWE) is expected to report Q2 earnings on Aug. 2. Here's what Wall Street wants to see.

The 10-second takeaway
Comparing the upcoming quarter with the prior-year quarter, average analyst estimates predict MarkWest Energy Partners's revenues will wane -12.5% and EPS will increase 2.4%.

The average estimate for revenue is $350.5 million. On the bottom line, the average EPS estimate is $0.42.

Revenue details
Last quarter, MarkWest Energy Partners chalked up revenue of $350.5 million. GAAP reported sales were 14% higher than the prior-year quarter's $348.9 million.

Source: S&P Capital IQ. Quarterly periods. Dollar amounts in millions. Non-GAAP figures may vary to maintain comparability with estimates.

EPS details
Last quarter, non-GAAP EPS came in at $0.46. GAAP EPS were $0.14 for Q1 versus -$1.13 per share for the prior-year quarter.

Source: S&P Capital IQ. Quarterly periods. Non-GAAP figures may vary to maintain comparability with estimates.

Recent performance
For the preceding quarter, gross margin was 61.3%, 530 basis points better than the prior-year quarter. Operating margin was 13.1%, 1,690 basis points better than the prior-year quarter. Net margin was 4.0%, 2,810 basis points better than the prior-year quarter.

Looking ahead
The full year's average estimate for revenue is $1.54 billion. The average EPS estimate is $1.80.

Investor sentiment

Of Wall Street recommendations tracked by S&P Capital IQ, the average opinion on MarkWest Energy Partners is buy, with an average price target of $64.75.

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