Eagle Rock Energy Partners (Nasdaq: EROC) reported earnings on May 1. Here are the numbers you need to know.

The 10-second takeaway
For the quarter ended March 31 (Q1), Eagle Rock Energy Partners whiffed on revenues and missed expectations on earnings per share.

Compared to the prior-year quarter, revenue expanded. GAAP loss per share dropped.

Gross margins dropped, operating margins shrank, net margins increased.

Revenue details
Eagle Rock Energy Partners chalked up revenue of $257.7 million. The four analysts polled by S&P Capital IQ wanted to see sales of $305.3 million on the same basis. GAAP reported sales were 10% higher than the prior-year quarter's $234.2 million.

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

EPS details
EPS came in at -$0.23. The three earnings estimates compiled by S&P Capital IQ forecast $0.05 per share. GAAP EPS were -$0.23 for Q1 versus -$0.39 per share for the prior-year quarter.

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

Margin details
For the quarter, gross margin was 17.7%, much worse than the prior-year quarter. Operating margin was -6.8%, 970 basis points worse than the prior-year quarter. Net margin was -13.0%, 850 basis points better than the prior-year quarter. (Margins calculated in GAAP terms.)

Looking ahead
Next quarter's average estimate for revenue is $303.9 million. On the bottom line, the average EPS estimate is $0.04.

Next year's average estimate for revenue is $1.28 billion. The average EPS estimate is $0.17.

Investor sentiment
The stock has a four-star rating (out of five) at Motley Fool CAPS, with 535 members out of 553 rating the stock outperform, and 18 members rating it underperform. Among 162 CAPS All-Star picks (recommendations by the highest-ranked CAPS members), 157 give Eagle Rock Energy Partners a green thumbs-up, and five give it a red thumbs-down.

Of Wall Street recommendations tracked by S&P Capital IQ, the average opinion on Eagle Rock Energy Partners is outperform, with an average price target of $10.30.

Is Eagle Rock Energy Partners the right energy stock for you? Read about a handful of timely, profit-producing plays on expensive crude in "3 Stocks for $100 Oil." Click here for instant access to this free report.

Seth Jayson had no position in any company mentioned here at the time of publication. You can view his stock holdings here. He is co-advisor of Motley Fool Hidden Gems, which provides new small-cap ideas every month, backed by a real-money portfolio. The Motley Fool has no position in any of the stocks mentioned. Try any of our Foolish newsletter services free for 30 days. We Fools may not all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.