Willbros Group (NYSE: WG) reported earnings on May 8. Here are the numbers you need to know.

The 10-second takeaway
 For the quarter ended March 31 (Q1), Willbros Group beat expectations on revenues and missed expectations on earnings per share.

Compared to the prior-year quarter, revenue grew significantly. Non-GAAP loss per share dropped. GAAP earnings per share increased.

Gross margins shrank, operating margins grew, net margins grew.

Revenue details
 Willbros Group chalked up revenue of $487.4 million. The seven analysts polled by S&P Capital IQ predicted revenue of $458.6 million on the same basis. GAAP reported sales were 16% higher than the prior-year quarter's $419.1 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 -$0.26. The seven earnings estimates compiled by S&P Capital IQ predicted -$0.05 per share. Non-GAAP EPS were -$0.26 for Q1 versus -$0.43 per share for the prior-year quarter. GAAP EPS were $0.09 for Q1 against -$0.43 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 -0.3%, 800 basis points worse than the prior-year quarter. Operating margin was -0.3%, 220 basis points better than the prior-year quarter. Net margin was 0.9%, 580 basis points better than the prior-year quarter. (Margins calculated in GAAP terms.)

Looking ahead
 Next quarter's average estimate for revenue is $519.0 million. On the bottom line, the average EPS estimate is $0.16.

Next year's average estimate for revenue is $2.12 billion. The average EPS estimate is $0.50.

Investor sentiment
 The stock has a three-star rating (out of five) at Motley Fool CAPS, with 255 members out of 273 rating the stock outperform, and 18 members rating it underperform. Among 52 CAPS All-Star picks (recommendations by the highest-ranked CAPS members), 48 give Willbros Group 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 Willbros Group is outperform, with an average price target of $8.71.

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