Marathon PetroleumMIL:1MPC 50 PB Ratio is 4.33 as of Jun. 26, 2026, which is 115% above its 10-year median of 2.01. GuruFocus rates MIL:1MPC with a GF Score™ of 50/100 and a GF Value™ of €182.99 (Modestly Overvalued). The stock has 5 warning signs investors should review. Among 923 Oil & Gas companies, Marathon Petroleum ranks worse than 86.78% on this metric.
Marathon Petroleum Corp stock PB Ratio (=4.31) is close to 10-year high of 4.61.
The historical rank and industry rank for Marathon Petroleum's PB Ratio or its related term are showing as below:
MIL:1MPC'
s PB Ratio Range Over the Past 10 Years
Min: 0.37 Med: 2.01 Max: 4.61
Current: 4.31
During the past 13 years, Marathon Petroleum's highest PB Ratio was 4.61. The lowest was 0.37. And the median was 2.01.
MIL:1MPC's PB Ratio is ranked worse than 86.78% of 923
companies
in the Oil & Gas industry
Industry Median: 1.42
vs MIL:1MPC: 4.31
During the past 12 months, Marathon Petroleum's average Book Value Per Share Growth Rate was 7.80% per year.
During the past 3 years, the average Book Value Per Share Growth Rate was -1.30% per year.
During the past 5 years, the average Book Value Per Share Growth Rate was 10.40% per year.
During the past 10 years, the average Book Value Per Share Growth Rate was 9.60% per year.
During the past 13 years, the highest 3-Year average Book Value Per Share Growth Rate of Marathon Petroleum was 27.50% per year. The lowest was -4.40% per year. And the median was 11.80% per year.
Back to Basics: PB Ratio
Marathon Petroleum (MIL:1MPC) PB Ratio Explanation
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.
Marathon Petroleum PB Ratio Related Terms
Marathon Petroleum PB Ratio Historical Data
* Premium members only.
The historical data trend for Marathon Petroleum'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, Marathon Petroleum'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.
Marathon Petroleum PB Ratio vs Oil & Gas Industry
For the Oil & Gas industry and Energy sector, Marathon Petroleum's PB Ratio distribution charts can be found below:
* The bar in red indicates where Marathon Petroleum'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.
* 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.
Marathon Petroleum (MIL:1MPC) has a PB Ratio of 4.33 as of Jun. 26, 2026. Price-to-Book ratio is the ratio of share price to a company's book value per share. View historical data on Marathon Petroleum and its competitors. This is 115% above median its historical median of 2.01. Over the past decade, Marathon Petroleum's PB Ratio has ranged from 0.37 to 4.61. According to the industry distribution chart, Marathon Petroleum ranks #801 out of 923 companies in the Oil & Gas industry, placing it in the top 86.8%.
Is Marathon Petroleum's PB Ratio too high?
Marathon Petroleum's current PB Ratio of 4.33 is 115% above median its 10-year median of 2.01. Over the past 10 years, this metric has ranged from a low of 0.37 to a high of 4.61. The Oil & Gas industry median PB Ratio is 1.42. Marathon Petroleum's value of 4.33 is 204.9% above this industry median. Based on the distribution chart, Marathon Petroleum ranks #801 out of 923 companies in the Oil & Gas industry, which is in the bottom quartile relative to peers. Overall, Marathon Petroleum has a GF Score™ of 50/100 and is considered Modestly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Marathon Petroleum's PB Ratio compare to VLO and PSX?
According to the Oil & Gas industry distribution chart, Marathon Petroleum ranks #801 out of 923 companies for PB Ratio. This places Marathon Petroleum in the lower half of its industry. The industry median PB Ratio is 1.42. Marathon Petroleum's value of 4.33 is 204.9% above this benchmark. Historically, Marathon Petroleum's own PB Ratio has ranged from 0.37 to 4.61 over the past decade. While the company's 10-year median is 2.01 vs. the industry median of 1.42, Marathon Petroleum has consistently been above 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 1.42, based on 923 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. Marathon Petroleum's current PB Ratio of 4.33 is 204.9% above 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 Marathon Petroleum and its competitors. For the Oil & Gas industry, the median PB Ratio is 1.42 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Marathon Petroleum's current PB Ratio is 4.33, which is 115% above median its own 10-year median of 2.01. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Marathon Petroleum stock overvalued right now?
Based on GuruFocus' analysis, Marathon Petroleum (MIL:1MPC) is currently considered Modestly Overvalued. The stock's GF Value™ is €182.99, compared to a current price of €214.10 — trading 17% above its estimated fair value. The current PB Ratio is 4.33, which is 115% above median its 10-year median of 2.01 and 204.9% above the Oil & Gas industry median of 1.42. Marathon Petroleum's overall GF Score™ is 50/100 with 5 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 Marathon Petroleum (MIL:1MPC), the current PB Ratio is 4.33 as of Jun. 26, 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 Marathon Petroleum (MIL:1MPC) Overvalued in 2026?
Based on GuruFocus' analysis, Marathon Petroleum stock appears to be overvalued.
The current stock price of €214.10 is trading 17% above its estimated GF Value™ of €182.99.
GuruFocus considers Marathon Petroleum to be Modestly Overvalued.
Key valuation signals for MIL:1MPC:
PB Ratio: 4.33 (115% above median its 10-year median of 2.01)
GF Value™: €182.99 vs. price of €214.10 (17% above fair value)
Industry Position: 204.9% above the Oil & Gas median (#801 of 923)
No single metric tells the full story. See the MIL:1MPC stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Marathon Petroleum is a leading integrated downstream and midstream energy company that operates 13 refineries in the Gulf Coast, Mid-Continent, and West Coast regions of the United States with an aggregate crude oil refining capacity of 3.0 million barrels per day. The company is one of the largest producers of renewable diesel in the US; its Dickinson, North Dakota facility has the capacity to produce 184 million gallons per year, and its Martinez, California, joint venture facility (a 50/50 partnership with Neste) reached its full capacity of 730 million gallons per year in late 2024. Marathon also owns the general partner and approximately 64% of MPLX LP, a large-cap master limited partnership that owns and operates midstream energy infrastructure and logistics assets.
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