Santos Ltd (AU:STO) — Market Cap & Net Worth

$18.87 Billion USD · AU$26.66 Billion AUD · Rank #1359

Market Cap & Net Worth: Santos Ltd (STO)

Santos Ltd (AU:STO) has a market capitalization of $18.87 Billion (AU$26.66 Billion) as of September 7, 2026. Listed on the AU stock exchange, this Australia-based company holds position #1359 globally and #25 in its home market, demonstrating a 1.86% increase in market value over the past year.

Market capitalization, also known as net worth in stock markets, is calculated by multiplying Santos Ltd's stock price AU$8.21 by its total outstanding shares 3247772961 (3.25 Billion). Also see Santos Ltd asset portfolio for a full breakdown of the balance sheet.

Santos Ltd Market Cap History: 2015 to 2026

Santos Ltd's market capitalization history from 2015 to 2026. Data shows growth from $6.73 Billion to $18.87 Billion (7.38% CAGR). Also see how efficiently does Santos Ltd generate cash for how efficiently the company converts equity into cash flow.

Index Memberships

Santos Ltd is a constituent of 9 market indices:

Index	Total Market Cap	Weight (%)	Rank by Market Cap
S&P/ASX 50 AFLI	$1.66 Trillion	1.14%	#22 of 50
Australia All Ordinaries AORD	$2.03 Trillion	0.93%	#22 of 495
S&P/ASX 20 ATLI	$1.23 Trillion	1.53%	#19 of 20
S&P/ASX 100 ATOI	$1.90 Trillion	0.99%	#23 of 100
S&P/ASX All Australian 50 AXAF	$1.53 Trillion	1.24%	#20 of 50
S&P/ASX All Australian 200 AXAT	$1.94 Trillion	0.97%	#21 of 200
S&P/ASX 200 AXJO	$1.90 Trillion	0.99%	#22 of 200
S&P/ASX 200 Accumulated AXJOA	$1.90 Trillion	0.99%	#22 of 200
S&P/ASX 300 AXKO	$2.20 Trillion	0.86%	#24 of 300

Weight: Santos Ltd's market cap as a percentage of total index value. Rank: Position among all constituents by market cap.

Santos Ltd Market Cap to Earnings & Revenue Ratios Timeline

This chart shows how Santos Ltd'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 STO stock price for real-time trading data and today's change.

Latest Price to Sales (P/S) Ratio

2.70x

Santos Ltd's market cap is 2.70 times its annual revenue

Industry average: 37.44x Lower than industry average

Latest Price to Earnings (P/E) Ratio

16.75x

Santos Ltd's market cap is 16.75 times its annual earnings

Industry average: 16.01x Higher 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	$7.46 Billion	$2.59 Billion	-$1.05 Billion	2.88x	N/A
2017	$10.11 Billion	$3.11 Billion	-$360.00 Million	3.25x	N/A
2018	$10.24 Billion	$3.66 Billion	$630.00 Million	2.80x	16.25x
2019	$15.67 Billion	$4.03 Billion	$674.00 Million	3.89x	23.25x
2020	$12.19 Billion	$3.39 Billion	-$357.00 Million	3.60x	N/A
2021	$12.55 Billion	$4.71 Billion	$658.00 Million	2.66x	19.07x
2022	$14.65 Billion	$7.79 Billion	$2.11 Billion	1.88x	6.94x
2023	$16.40 Billion	$5.89 Billion	$1.42 Billion	2.78x	11.58x
2024	$15.35 Billion	$5.40 Billion	$1.22 Billion	2.84x	12.54x
2025	$14.18 Billion	$5.26 Billion	$846.53 Million	2.70x	16.75x

Competitor Companies of STO by Market Capitalization

Companies near Santos Ltd in the global market cap rankings as of September 7, 2026. Review STO intangible-adjusted equity ratio to assess the quality of the company's equity after excluding intangible assets.

Key companies related to Santos Ltd by market ranking:

ConocoPhillips (NYSE:COP): Ranked #170 globally with a market cap of $140.54 Billion USD.
Canadian Natural Resources Ltd (TO:CNQ): Ranked #240 globally with a market cap of $105.15 Billion USD ( CA$145.36 Billion CAD).
EOG Resources Inc (NYSE:EOG): Ranked #406 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
#170	ConocoPhillips	NYSE:COP	$140.54 Billion	$134.26
#240	Canadian Natural Resources Ltd	TO:CNQ	$105.15 Billion	CA$69.78
#406	EOG Resources Inc	NYSE:EOG	$70.68 Billion	$145.19
#490	Occidental Petroleum Corporation	NYSE:OXY	$55.89 Billion	$60.04

Santos Ltd Historical Marketcap From 2015 to 2026

Between 2015 and today, Santos Ltd's market cap moved from $6.73 Billion to $ 18.87 Billion, with a yearly change of 7.38%.

Year	Market Cap	Change (%)
2026	AU$18.87 Billion	+33.06%
2025	AU$14.18 Billion	-7.63%
2024	AU$15.35 Billion	-6.38%
2023	AU$16.40 Billion	+11.89%
2022	AU$14.65 Billion	+16.79%
2021	AU$12.55 Billion	+2.91%
2020	AU$12.19 Billion	-22.19%
2019	AU$15.67 Billion	+53.04%
2018	AU$10.24 Billion	+1.26%
2017	AU$10.11 Billion	+35.57%
2016	AU$7.46 Billion	+10.90%
2015	AU$6.73 Billion	--

End of Day Market Cap According to Different Sources

On Sep 7th, 2026 the market cap of Santos Ltd was reported to be:

Source	Market Cap
Yahoo Finance	$18.87 Billion USD
MoneyControl	$18.87 Billion USD
MarketWatch	$18.87 Billion USD
marketcap.company	$18.87 Billion USD
Reuters	$18.87 Billion USD

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

About Santos Ltd

AU:STO Australia Oil & Gas E&P

Market Cap

$18.87 Billion

AU$26.66 Billion AUD

Market Cap Rank

#1359 Global

#25 in Australia

Share Price

AU$8.21

Change (1 day)

-0.85%

52-Week Range

AU$5.92 - AU$8.45

All Time High

AU$8.45