STOCK COMPARISON
Petro Rio S.A vs Cnooc: Fair Value & Quality
Both stocks run through our valuation models. Here is how Petro Rio S.A (PTRRY) and Cnooc (0883) compare, as of Aug 10, 2026.
As of Aug 10, 2026, Fair Value Calculator sees Cnooc as the more attractively valued of the two: Petro Rio S.A trades at $11.22 versus a fair value of $7.56 (-33%), while Cnooc trades at HK$23.26 versus HK$26.35 (+13%).
Petro Rio S.A
PTRRY · USD · Energy
-33%
upside to fair value
overvalued
Price$11.22
Fair Value$7.56
Quality38/100
Cnooc
0883.HK · HKD · Energy
+13%
upside to fair value
undervalued
PriceHK$23.26
Fair ValueHK$26.35
Quality63/100
Head-to-head numbers
Green value = the better side for that row (for valuation multiples: lower = cheaper).
Petro Rio S.ACnooc
Valuation
17.1×P/E (TTM)7.7×
—P/S (TTM)2.67×
—P/B1.35×
—EV/EBITDA4.3×
—PEG0.16×
—Dividend yield5.0%
—Dividend per shareHK$1.15
Profitability
15%Net margin31%
38%Operating margin45%
10%Return on equity15%
4%Return on assets9%
Growth
47%Revenue growth (YoY)9%
33.9%Avg. growth/yr (3Y)-3.7%
51.7%Avg. growth/yr (5Y)20.0%
Balance & size
1.00×Debt / equity0.07×
$9BMarket cap$139B
expensiveGrowth qualityexpensive
Cnooc leads: 3 to 6 metric wins.
Dash = not meaningfully computable, for example with negative equity.
Quality in detail
The quality score, broken down into the same factor families as on the stock page, 0 to 100 per family.
Petro Rio S.Aof which business quality 38 · market factors 60
Cnoocof which business quality 64 · market factors 57
ProfitabilityMargins and returns on capital today
31
55
Quality GrowthAre margins and returns improving?
16
36
CashflowEarnings quality: real cash, not paper profit
50
76
Fin. StrengthBalance sheet, leverage, solvency risk
27
84
InvestmentDisciplined investing over empire-building
0
40
Low VolatilityCalm price path (market factor)
54
83
MomentumPrice trend over the last 3–12 months (market factor)
54
41
52W MomentumDistance to the 52-week high (market factor)
78
56
Net IssuanceBuybacks instead of dilution
99
79
What the models say
The median fair value (base case) per model family, each in the currency of its trading venue. Green = above the current price, red = below.
Petro Rio S.A
Earnings-Based$96.43
Dividend Discount$1.23
Multiples$34.84
Asset-Based$21.55
Economic Profit$28.60
Growth Earnings$113
2 of 12 models see the stock below the current price.
Cnooc
DCF ModelsHK$41.36
Earnings-BasedHK$27.87
Dividend DiscountHK$25.25
MultiplesHK$33.44
Asset-BasedHK$12.08
Growth DCFHK$33.29
Economic ProfitHK$32.53
Growth EarningsHK$33.61
8 of 26 models see the stock below the current price.
Scenario ranges
From our cautious bear case to the optimistic bull case. The white tick is the current price: left of fair value means room to run.
Petro Rio S.A
Bear $5.67Fair Value $7.56Bull $9.45
$11.22 = current price (white tick)
Cnooc
Bear HK$19.80Fair Value HK$26.35Bull HK$33.85
HK$23.26 = current price (white tick)
Compare two other stocks
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Ranked within their sector
Where each stock sits within its sector peer group. Band = middle 50% of peers, tick = median, dot = this stock.
Petro Rio S.A · Energy
Quality score38 · bottom 25%
Fair value upside-33% · below median
Cnooc · Energy
Quality score63 · Top 25%
Fair value upside+13% · above median
Bottom line
As of Aug 10, 2026, Fair Value Calculator sees Cnooc as the more attractively valued of the two: Petro Rio S.A trades at $11.22 versus a fair value of $7.56 (-33%), while Cnooc trades at HK$23.26 versus HK$26.35 (+13%).
Cnooc has the higher quality score (63/100).
See the full analysis →
More comparisons
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A model-based valuation snapshot from 21 models. Values change with price and fundamentals; the date shown above applies.
