Petroleo Brasileiro SA - Petrobras (NYSE: PBR) is expected to report Q2 earnings on Aug. 3. Here's what Wall Street wants to see:

The 10-second takeaway
Comparing the upcoming quarter to the prior-year quarter, average analyst estimates predict Petroleo Brasileiro SA - Petrobras' revenues will drop -14.0% and EPS will contract -48.6%.

The average estimate for revenue is $33.86 billion. On the bottom line, the average EPS estimate is $0.54.

Revenue details
Last quarter, Petroleo Brasileiro SA - Petrobras notched revenue of $36.27 billion. GAAP reported sales were 15% higher than the prior-year quarter's $32.60 billion.

Source: S&P Capital IQ. Quarterly periods. Dollar amounts in millions. Non-GAAP figures may vary to maintain comparability with estimates.

EPS details
Last quarter, EPS came in at $0.40. GAAP EPS of $0.40 for Q1 were 22% lower than the prior-year quarter's $0.51 per share.

Source: S&P Capital IQ. Quarterly periods. Non-GAAP figures may vary to maintain comparability with estimates.

Recent performance
For the preceding quarter, gross margin was 30.4%, 610 basis points worse than the prior-year quarter. Operating margin was 18.2%, 460 basis points worse than the prior-year quarter. Net margin was 13.9%, 630 basis points worse than the prior-year quarter.

Looking ahead
The full year's average estimate for revenue is $138.47 billion. The average EPS estimate is $2.57.

Investor sentiment
The stock has a four-star rating (out of five) at Motley Fool CAPS, with 4,183 members rating the stock outperform, and 93 members rating it underperform. Among 720 CAPS All-Star picks (recommendations by the highest-ranked CAPS members), 699 give Petróleo Brasileiro SA - Petrobras a green thumbs-up, and 21 give it a red thumbs-down.

Of Wall Street recommendations tracked by S&P Capital IQ, the average opinion on Petróleo Brasileiro SA - Petrobras is outperform, with an average price target of $37.12.

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