Pioneer Southwest Energy Partners (NYSE: PSE) is expected to report Q1 earnings on May 1. Here's what Wall Street wants to see:

The 10-second takeaway
 Comparing the upcoming quarter to the prior-year quarter, average analyst estimates predict Pioneer Southwest Energy Partners's revenues will drop -12.4% and EPS will wane -19.4%.

The average estimate for revenue is $44.4 million. On the bottom line, the average EPS estimate is $0.50.

Revenue details
 Last quarter, Pioneer Southwest Energy Partners reported revenue of $46.2 million. GAAP reported sales were 14% lower than the prior-year quarter's $53.9 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 $0.50. GAAP EPS were $0.65 for Q4 versus -$0.21 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 62.0%, much worse than the prior-year quarter. Operating margin was 52.8%, much better than the prior-year quarter. Net margin was 50.2%, much better than the prior-year quarter.

Looking ahead

The full year's average estimate for revenue is $193.7 million. The average EPS estimate is $2.20.

Investor sentiment
 The stock has a four-star rating (out of five) at Motley Fool CAPS, with 176 members out of 186 rating the stock outperform, and 10 members rating it underperform. Among 60 CAPS All-Star picks (recommendations by the highest-ranked CAPS members), 56 give Pioneer Southwest Energy Partners a green thumbs-up, and four give it a red thumbs-down.

Of Wall Street recommendations tracked by S&P Capital IQ, the average opinion on Pioneer Southwest Energy Partners is hold, with an average price target of $25.70.

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