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Sea Oil PCLBKK:SEAOIL +1.21%83 PB Ratio is 0.89 as of Jul. 23, 2026, which is 18% below its 10-year median of 1.08. GuruFocus rates BKK:SEAOIL with a GF Score™ of 83/100 and a GF Value™ of ฿3.31 (Fairly Valued). The stock has 4 warning signs investors should review. Among 926 Oil & Gas companies, Sea Oil PCL ranks better than 72.79% on this metric.
The PB Ratio, or Price-to-Book ratio, or Price/Book, is a financial ratio used to compare a company's market price to its Book Value per Share. As of today (2026-07-23), Sea Oil PCL's share price is ฿3.34. Sea Oil PCL's Book Value per Share for the quarter that ended in Mar. 2026 was ฿3.77. Hence, Sea Oil PCL's PB Ratio of today is 0.89.
The historical rank and industry rank for Sea Oil PCL's PB Ratio or its related term are showing as below:
BKK:SEAOIL'
s PB Ratio Range Over the Past 10 Years
Min: 0.62 Med: 1.08 Max: 2.35
Current: 0.88
During the past 13 years, Sea Oil PCL's highest PB Ratio was 2.35. The lowest was 0.62. And the median was 1.08.
BKK:SEAOIL's PB Ratio is ranked better than 72.79% of 926
companies
in the Oil & Gas industry
Industry Median: 1.48
vs BKK:SEAOIL: 0.88
During the past 12 months, Sea Oil PCL's average Book Value Per Share Growth Rate was 4.70% per year.
During the past 3 years, the average Book Value Per Share Growth Rate was 8.40% per year.
During the past 5 years, the average Book Value Per Share Growth Rate was 14.40% per year.
During the past 10 years, the average Book Value Per Share Growth Rate was 8.30% per year.
During the past 13 years, the highest 3-Year average Book Value Per Share Growth Rate of Sea Oil PCL was 58.90% per year. The lowest was -4.90% per year. And the median was 12.20% per year.
The PB Ratio works the best for the businesses that earn most of their profit from their assets, e.g. banks and insurance companies.
Be Aware
Some businesses have very light assets, such as software companies or insurance agencies. The PB Ratio does not work well for these companies. Some companies even have negative equity, so the PB Ratio cannot be applied to them.
Sea Oil PCL PB Ratio Related Terms
Sea Oil PCL PB Ratio Historical Data
* Premium members only.
The historical data trend for Sea Oil PCL's PB Ratio can be seen below:
* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD. * For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.
For the Oil & Gas Refining & Marketing subindustry, Sea Oil PCL's PB Ratio, along with its competitors' market caps and PB Ratio data, can be viewed below:
* Competitive companies are chosen from companies within the same industry, with headquarter located in same country, with closest market capitalization; x-axis shows the market cap, and y-axis shows the term value; the bigger the dot, the larger the market cap. Note that "N/A" values will not show up in the chart.
Sea Oil PCL PB Ratio vs Oil & Gas Industry
For the Oil & Gas industry and Energy sector, Sea Oil PCL's PB Ratio distribution charts can be found below:
* The bar in red indicates where Sea Oil PCL's PB Ratio falls into.
The PB Ratio, or Price-to-Book ratio, or Price/Book, is a financial ratio used to compare a company's market price to its Book Value per Share. It is a ratio widely used to value stocks.
Sea Oil PCL's PB Ratio for today is calculated as follows:
* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD. * For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.
It can also be calculated from the numbers for the whole company:
A closely related ratio is called Price-to-Tangible-Book. The difference between Price-to-Tangible-Book and PB Ratio is that book value other than intangibles are used in the calculation.
Sea Oil PCL (BKK:SEAOIL) has a PB Ratio of 0.89 as of Jul. 23, 2026. Price-to-Book ratio is the ratio of share price to a company's book value per share. View historical data on Sea Oil PCL and its competitors. This is 18% below median its historical median of 1.08. Over the past decade, Sea Oil PCL's PB Ratio has ranged from 0.62 to 2.35. According to the industry distribution chart, Sea Oil PCL ranks #252 out of 926 companies in the Oil & Gas industry, placing it in the top 27.2%.
Is Sea Oil PCL's PB Ratio too high?
Sea Oil PCL's current PB Ratio of 0.89 is 18% below median its 10-year median of 1.08. Over the past 10 years, this metric has ranged from a low of 0.62 to a high of 2.35. The Oil & Gas industry median PB Ratio is 1.48. Sea Oil PCL's value of 0.89 is 39.9% below this industry median. Based on the distribution chart, Sea Oil PCL ranks #252 out of 926 companies in the Oil & Gas industry, which is above the industry midpoint. Overall, Sea Oil PCL has a GF Score™ of 83/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does Sea Oil PCL's PB Ratio compare to VLO and MPC?
According to the Oil & Gas industry distribution chart, Sea Oil PCL ranks #252 out of 926 companies for PB Ratio. This puts Sea Oil PCL in the upper half of its industry. The industry median PB Ratio is 1.48. Sea Oil PCL's value of 0.89 is 39.9% below this benchmark. Historically, Sea Oil PCL's own PB Ratio has ranged from 0.62 to 2.35 over the past decade. While the company's 10-year median is 1.08 vs. the industry median of 1.48, Sea Oil PCL has consistently been below the industry average. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good PB Ratio for an Oil & Gas company?
The median PB Ratio among Oil & Gas companies is 1.48, based on 926 companies in the industry. Companies in the top quartile (top 25%) have a PB Ratio significantly above this median, while those in the bottom quartile fall well below. However, PB Ratio should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Sea Oil PCL's current PB Ratio of 0.89 is 39.9% below the industry median. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high PB Ratio mean?
A high PB Ratio can signal that a stock is expensive relative to its fundamentals. Price-to-Book ratio is the ratio of share price to a company's book value per share. View historical data on Sea Oil PCL and its competitors. For the Oil & Gas industry, the median PB Ratio is 1.48 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Sea Oil PCL's current PB Ratio is 0.89, which is 18% below median its own 10-year median of 1.08. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Sea Oil PCL stock overvalued right now?
Based on GuruFocus' analysis, Sea Oil PCL (BKK:SEAOIL) is currently considered Fairly Valued. The stock's GF Value™ is ฿3.31, compared to a current price of ฿3.34 — trading 0.9% above its estimated fair value. The current PB Ratio is 0.89, which is 18% below median its 10-year median of 1.08 and 39.9% below the Oil & Gas industry median of 1.48. Sea Oil PCL's overall GF Score™ is 83/100 with 4 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is PB Ratio calculated?
PB Ratio is calculated from a company's financial statements. For Sea Oil PCL (BKK:SEAOIL), the current PB Ratio is 0.89 as of Jul. 23, 2026. GuruFocus calculates this using data sourced from SEC filings and annual reports. See the calculation section and 30-year financial data on this page for the full breakdown.
Is Sea Oil PCL (BKK:SEAOIL) Overvalued in 2026?
Based on GuruFocus' analysis, Sea Oil PCL stock appears to be overvalued.
The current stock price of ฿3.34 is trading 0.9% above its estimated GF Value™ of ฿3.31.
GuruFocus considers Sea Oil PCL to be Fairly Valued.
Key valuation signals for BKK:SEAOIL:
PB Ratio: 0.89 (18% below median its 10-year median of 1.08)
GF Value™: ฿3.31 vs. price of ฿3.34 (0.9% above fair value)
Industry Position: 39.9% below the Oil & Gas median (#252 of 926)
No single metric tells the full story. See the BKK:SEAOIL stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Sea Oil PCL engaged in the retail sale of fuel oil and lubricant oil. The company also provides service and supply management for clients in the oil industry's exploration and productions. The operating segments of the company are; Maritime sales of fuel oil and lubricant oil, Land sales and other channels' sales of fuel oil and lubricant oil, Catering service which provides service and supply management for clients in the oil industry's exploration and production, and Lease of solvent and petrochemical factory. The company derives the majority of its revenue from the Maritime sales of fuel oil and lubricant oil segment. The Group operates in both Thailand and foreign countries.
83GF Score
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