Energy Transfer Partners (NYSE: ETP) reported earnings on May 8. Here are the numbers you need to know.

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

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

Margins dropped across the board.

Revenue details
 Energy Transfer Partners recorded revenue of $10.85 billion. The seven analysts polled by S&P Capital IQ predicted revenue of $9.40 billion on the same basis. GAAP reported sales were much higher than the prior-year quarter's $1.31 billion.

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 $0.57. The nine earnings estimates compiled by S&P Capital IQ anticipated $0.51 per share. Non-GAAP EPS of $0.57 for Q1 were 128% higher than the prior-year quarter's $0.25 per share. GAAP EPS of $0.64 for Q1 were 85% lower than the prior-year quarter's $4.36 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 8.8%, much worse than the prior-year quarter. Operating margin was 4.9%, much worse than the prior-year quarter. Net margin was 3.0%, much worse than the prior-year quarter. (Margins calculated in GAAP terms.)

Looking ahead
 Next quarter's average estimate for revenue is $9.79 billion. On the bottom line, the average EPS estimate is $0.55.

Next year's average estimate for revenue is $39.62 billion. The average EPS estimate is $2.36.

Investor sentiment
 The stock has a five-star rating (out of five) at Motley Fool CAPS, with 915 members out of 933 rating the stock outperform, and 18 members rating it underperform. Among 254 CAPS All-Star picks (recommendations by the highest-ranked CAPS members), 252 give Energy Transfer Partners a green thumbs-up, and two give it a red thumbs-down.

Of Wall Street recommendations tracked by S&P Capital IQ, the average opinion on Energy Transfer Partners is outperform, with an average price target of $51.23.

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