Oiltanking Partners (NYSE: OILT) reported earnings on May 8. Here are the numbers you need to know.

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

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

Margins expanded across the board.

Revenue details
 Oiltanking Partners recorded revenue of $40.2 million. The three analysts polled by S&P Capital IQ expected net sales of $37.1 million on the same basis. GAAP reported sales were 17% higher than the prior-year quarter's $34.3 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 $0.48. The six earnings estimates compiled by S&P Capital IQ predicted $0.41 per share. GAAP EPS of $0.48 for Q1 were 20% higher than the prior-year quarter's $0.40 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 76.4%, 450 basis points better than the prior-year quarter. Operating margin was 52.8%, 550 basis points better than the prior-year quarter. Net margin was 50.2%, 370 basis points better than the prior-year quarter. (Margins calculated in GAAP terms.)

Looking ahead
 Next quarter's average estimate for revenue is $38.6 million. On the bottom line, the average EPS estimate is $0.43.

Next year's average estimate for revenue is $156.5 million. The average EPS estimate is $1.70.

Investor sentiment
 The stock has a three-star rating (out of five) at Motley Fool CAPS, with 19 members out of 20 rating the stock outperform, and one members rating it underperform. Among two CAPS All-Star picks (recommendations by the highest-ranked CAPS members), two give Oiltanking Partners a green thumbs-up, and give it a red thumbs-down.

Of Wall Street recommendations tracked by S&P Capital IQ, the average opinion on Oiltanking Partners is outperform, with an average price target of $47.25.

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