ONEOK (NYSE: OKE) reported earnings on April 30. Here are the numbers you need to know.

The 10-second takeaway
 For the quarter ended March 31 (Q1), ONEOK missed estimates on revenues and whiffed on earnings per share.

Compared to the prior-year quarter, revenue expanded. GAAP earnings per share dropped.

Margins shrank across the board.

Revenue details
 ONEOK reported revenue of $3.54 billion. The four analysts polled by S&P Capital IQ expected revenue of $3.75 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 $0.54. The 10 earnings estimates compiled by S&P Capital IQ anticipated $0.60 per share. GAAP EPS of $0.54 for Q1 were 6.9% lower than the prior-year quarter's $0.58 per share. (The prior-year quarter included $0.07 per share in earnings from discontinued operations.)

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 11.3%, 190 basis points worse than the prior-year quarter. Operating margin was 7.7%, 210 basis points worse than the prior-year quarter. Net margin was 3.2%, 40 basis points worse than the prior-year quarter. (Margins calculated in GAAP terms.)

Looking ahead
 Next quarter's average estimate for revenue is $3.23 billion. On the bottom line, the average EPS estimate is $0.33.

Next year's average estimate for revenue is $14.26 billion. The average EPS estimate is $1.80.

Investor sentiment
 The stock has a four-star rating (out of five) at Motley Fool CAPS, with 420 members out of 436 rating the stock outperform, and 16 members rating it underperform. Among 154 CAPS All-Star picks (recommendations by the highest-ranked CAPS members), 149 give ONEOK a green thumbs-up, and five give it a red thumbs-down.

Of Wall Street recommendations tracked by S&P Capital IQ, the average opinion on ONEOK is outperform, with an average price target of $52.70.

Can your portfolio provide you with enough income to last through retirement? You'll need more than ONEOK. Learn how to maximize your investment income and "Secure Your Future With 9 Rock-Solid Dividend Stocks." Click here for instant access to this free report.