Petro Rio S.A. (SA:PRIO3) — Market Cap & Net Worth

$10.05 Billion USD · R$51.20 Billion BRL · Rank #2230

Market Cap & Net Worth: Petro Rio S.A. (PRIO3)

Petro Rio S.A. (SA:PRIO3) has a market capitalization of $10.05 Billion (R$51.20 Billion) as of September 15, 2026. Listed on the SA stock exchange, this Brazil-based company holds position #2230 globally and #30 in its home market, demonstrating a 3.92% increase in market value over the past year.

Market capitalization, also known as net worth in stock markets, is calculated by multiplying Petro Rio S.A.'s stock price R$63.91 by its total outstanding shares 801133501 (801.13 Million). Also see Petro Rio S.A. assets under control for a full breakdown of the balance sheet.

Petro Rio S.A. Market Cap History: 2015 to 2026

Petro Rio S.A.'s market capitalization history from 2015 to 2026. Data shows growth from $38.45 Million to $10.05 Billion (69.35% CAGR). Also see Petro Rio S.A. cash flow conversion for how efficiently the company converts equity into cash flow.

Index Memberships

Petro Rio S.A. is a constituent of 4 market indices:

Index	Total Market Cap	Weight (%)	Rank by Market Cap
BOVESPA Index BVSP	$608.87 Billion	1.65%	#17 of 80
Bovespa Brazil 50 IBX50	$512.49 Billion	1.96%	#14 of 50
SAO PAULO SE IBX50 INDEX IBXL	$492.48 Billion	2.04%	#13 of 50
SAO PAULO SE IGCX INDEX IGCX	$624.25 Billion	1.61%	#16 of 155

Weight: Petro Rio S.A.'s market cap as a percentage of total index value. Rank: Position among all constituents by market cap.

Petro Rio S.A. Market Cap to Earnings & Revenue Ratios Timeline

This chart shows how Petro Rio S.A.'s valuation ratios have evolved. The Price to Sales (P/S) ratio compares market cap to revenue, while the Price to Earnings (P/E) ratio compares market cap to net income. Lower values may indicate a more undervalued company relative to its financial performance. Check Petro Rio S.A. stock price for real-time trading data and today's change.

Latest Price to Sales (P/S) Ratio

0.42x

Petro Rio S.A.'s market cap is 0.42 times its annual revenue

Industry average: 41.85x Lower than industry average

Latest Price to Earnings (P/E) Ratio

2.89x

Petro Rio S.A.'s market cap is 2.89 times its annual earnings

Industry average: 10.60x Lower than industry average

What These Ratios Tell Investors:

Price to Sales (P/S) Ratio: Shows how much investors are paying for each dollar of the company's sales. Lower P/S ratios may indicate undervaluation.
Price to Earnings (P/E) Ratio: Shows how much investors are paying for each dollar of the company's earnings. This is one of the most common valuation metrics.
Trends in these ratios over time can indicate changing investor sentiment about the company's future growth prospects.
Industry comparison provides context for whether the company is valued higher or lower than peers.

Year	Market Cap (USD)	Revenue (USD)	Net Income (USD)	P/S Ratio	P/E Ratio
2016	$68.36 Million	$397.87 Million	$241.62 Million	0.17x	0.28x
2017	$256.75 Million	$533.92 Million	$50.85 Million	0.48x	5.05x
2018	$311.36 Million	$848.92 Million	$204.88 Million	0.37x	1.52x
2019	$1.04 Billion	$1.64 Billion	$842.35 Million	0.63x	1.23x
2020	$2.20 Billion	$1.90 Billion	$452.77 Million	1.16x	4.87x
2021	$3.24 Billion	$4.40 Billion	$1.33 Billion	0.74x	2.43x
2022	$5.84 Billion	$6.36 Billion	$3.43 Billion	0.92x	1.70x
2023	$7.24 Billion	$11.91 Billion	$5.18 Billion	0.61x	1.40x
2024	$6.31 Billion	$14.36 Billion	$10.30 Billion	0.44x	0.61x
2025	$6.51 Billion	$15.58 Billion	$2.25 Billion	0.42x	2.89x

Competitor Companies of PRIO3 by Market Capitalization

Companies near Petro Rio S.A. in the global market cap rankings as of September 15, 2026. Review Petro Rio S.A. tangible equity quality to assess the quality of the company's equity after excluding intangible assets.

Key companies related to Petro Rio S.A. by market ranking:

ConocoPhillips (NYSE:COP): Ranked #149 globally with a market cap of $164.02 Billion USD.
Canadian Natural Resources Ltd (TO:CNQ): Ranked #240 globally with a market cap of $105.39 Billion USD ( CA$145.69 Billion CAD).
EOG Resources Inc (NYSE:EOG): Ranked #402 globally with a market cap of $70.68 Billion USD.
Occidental Petroleum Corporation (NYSE:OXY): Ranked #490 globally with a market cap of $55.89 Billion USD.

Market capitalization comparison (in billions USD)

Rank	Company	Symbol	Market Cap	Price
#149	ConocoPhillips	NYSE:COP	$164.02 Billion	$136.67
#240	Canadian Natural Resources Ltd	TO:CNQ	$105.39 Billion	CA$69.94
#402	EOG Resources Inc	NYSE:EOG	$70.68 Billion	$148.54
#490	Occidental Petroleum Corporation	NYSE:OXY	$55.89 Billion	$61.78

Petro Rio S.A. Historical Marketcap From 2015 to 2026

Between 2015 and today, Petro Rio S.A.'s market cap moved from $38.45 Million to $ 10.05 Billion, with a yearly change of 69.35%.

Year	Market Cap	Change (%)
2026	R$10.05 Billion	+54.30%
2025	R$6.51 Billion	+3.16%
2024	R$6.31 Billion	-12.81%
2023	R$7.24 Billion	+23.96%
2022	R$5.84 Billion	+80.02%
2021	R$3.24 Billion	+47.24%
2020	R$2.20 Billion	+112.31%
2019	R$1.04 Billion	+233.27%
2018	R$311.36 Million	+21.27%
2017	R$256.75 Million	+275.56%
2016	R$68.36 Million	+77.80%
2015	R$38.45 Million	--

End of Day Market Cap According to Different Sources

On Sep 15th, 2026 the market cap of Petro Rio S.A. was reported to be:

Source	Market Cap
Yahoo Finance	$10.05 Billion USD
MoneyControl	$10.05 Billion USD
MarketWatch	$10.05 Billion USD
marketcap.company	$10.05 Billion USD
Reuters	$10.05 Billion USD

Market cap values may vary slightly between sources due to differences in calculation methods, timing, and data refresh rates.

About Petro Rio S.A.

SA:PRIO3 Brazil Oil & Gas E&P

Market Cap

$10.05 Billion

R$51.20 Billion BRL

Market Cap Rank

#2230 Global

#30 in Brazil

Share Price

R$63.91

Change (1 day)

-0.44%

52-Week Range

R$34.20 - R$72.10

All Time High

R$72.10