Tenaris (NYSE: TS) reported earnings on Feb. 21. Here are the numbers you need to know.

The 10-second takeaway
 For the quarter ended Dec. 31 (Q4), Tenaris beat slightly on revenues and whiffed on earnings per share.

Compared to the prior-year quarter, revenue was unchanged. Non-GAAP earnings per share shrank. GAAP earnings per share dropped.

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

Revenue details
 Tenaris reported revenue of $2.76 billion. The 10 analysts polled by S&P Capital IQ expected to see sales of $2.73 billion on the same basis. GAAP reported sales were the same as the prior-year quarter's.

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 $0.61. The 10 earnings estimates compiled by S&P Capital IQ averaged $0.73 per share. Non-GAAP EPS of $0.61 for Q4 were 10% lower than the prior-year quarter's $0.68 per share. GAAP EPS of $0.30 for Q4 were 12% lower than the prior-year quarter's $0.34 per share.

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 39.4%, 200 basis points better than the prior-year quarter. Operating margin was 21.2%, 100 basis points better than the prior-year quarter. Net margin was 13.0%, 150 basis points worse than the prior-year quarter.

Looking ahead
 Next quarter's average estimate for revenue is $2.75 billion. On the bottom line, the average EPS estimate is $0.75.

Next year's average estimate for revenue is $11.51 billion. The average EPS estimate is $3.24.

Investor sentiment
 The stock has a five-star rating (out of five) at Motley Fool CAPS, with 800 members out of 824 rating the stock outperform, and 24 members rating it underperform. Among 218 CAPS All-Star picks (recommendations by the highest-ranked CAPS members), 211 give Tenaris a green thumbs-up, and seven give it a red thumbs-down.

Of Wall Street recommendations tracked by S&P Capital IQ, the average opinion on Tenaris is hold, with an average price target of $46.59.

Is Tenaris 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.