ATP Oil & Gas (Nasdaq: ATPG) reported earnings on May 10. Here are the numbers you need to know.

The 10-second takeaway
For the quarter ended March 31 (Q1), ATP Oil & Gas whiffed on revenues and missed expectations on earnings per share.

Compared with he prior-year quarter, revenue contracted and GAAP loss per share grew.

Gross margins grew, operating margins improved, net margins dropped.

Revenue details
ATP Oil & Gas chalked up revenue of $146.6 million. The two analysts polled by S&P Capital IQ expected to see a top line of $178.4 million on the same basis. GAAP reported sales were 12% lower than the prior-year quarter's $166.5 million.

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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 -$1.98. The two earnings estimates compiled by S&P Capital IQ anticipated -$0.31 per share. GAAP EPS were -$2.83 for Q1 compared to -$2.34 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 81.6%, 110 basis points better than the prior-year quarter. Operating margin was 8.1%, 1,420 basis points better than the prior-year quarter. Net margin was -94.7%, 2,460 basis points worse than the prior-year quarter.

Looking ahead
Next quarter's average estimate for revenue is $210.7 million. On the bottom line, the average EPS estimate is -$0.30.

Next year's average estimate for revenue is $868.8 million. The average EPS estimate is -$0.86.

Investor sentiment
The stock has a four-star rating (out of five) at Motley Fool CAPS, with 1,316 members out of 1,361 rating the stock outperform, and 45 members rating it underperform. Among 321 CAPS All-Star picks (recommendations by the highest-ranked CAPS members), 308 give ATP Oil & Gas a green thumbs-up, and 13 give it a red thumbs-down.

Of Wall Street recommendations tracked by S&P Capital IQ, the average opinion on ATP Oil & Gas is hold, with an average price target of $9.83.

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