Union Jack Oil (LSE:UJO) Market Cap: £5.13 Mil (As of Jun. 30, 2026)


What is Union Jack Oil Market Cap?

Union Jack Oil LSE:UJO -6.67% Market Cap is £5.13 Mil as of Jun. 30, 2026. The stock has 3 warning signs investors should review. Among 1,045 Oil & Gas companies, Union Jack Oil ranks worse than 87.27% on this metric.

Market cap is the total market value to buy the whole company. It is equal to the share price times the number of Shares Outstanding (EOP). Union Jack Oil's share price for the quarter that ended in Dec. 2025 was £0.022. Union Jack Oil's Shares Outstanding (EOP) for the quarter that ended in Dec. 2025 was 146.57 Mil. Therefore, Union Jack Oil's market cap for the quarter that ended in Dec. 2025 was £3.22 Mil.

Union Jack Oil's quarterly market cap declined from Dec. 2024 (£9.86 Mil) to Jun. 2025 (£9.43 Mil) and declined from Jun. 2025 (£9.43 Mil) to Dec. 2025 (£3.22 Mil).

Union Jack Oil's annual market cap declined from Dec. 2023 (£21.05 Mil) to Dec. 2024 (£9.86 Mil) and declined from Dec. 2024 (£9.86 Mil) to Dec. 2025 (£3.22 Mil).

Enterprise Value is the theoretical takeover price. It is more comprehensive than market capitalization (market cap), which only includes common equity. Enterprise Value is calculated as the market cap plus debt and minority interest and preferred shares, minus total cash and cash equivalents. Union Jack Oil's Enterprise Value for Today is £3.39 Mil.


Union Jack Oil  (LSE:UJO) Market Cap Explanation

Market cap is not the real price you pay for a company. If you buy the company and become its owner, you become the owner of the cash the company has, and you also assume the company’s debt. The real price you pay is the Enterprise Value.

Warren Buffett uses the ratio of total market cap of all public traded companies over GDP to measure if the market is expensive. As of April 2012, the US total market cap is about $14.7 trillion, while the US GDP is about $15 trillion. The market was modestly overvalued.


Union Jack Oil Market Cap Related Terms


Union Jack Oil Market Cap Historical Data

* Premium members only.

The historical data trend for Union Jack Oil's Market Cap 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.

Union Jack Oil Market Cap Chart

Union Jack Oil Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Market Cap
Get a 7-Day Free Trial Premium Member Only Premium Member Only 15.78 30.57 21.05 9.86 3.22

Union Jack Oil Semi-Annual Data
Jun16 Dec16 Jun17 Dec17 Jun18 Dec18 Jun19 Dec19 Jun20 Dec20 Jun21 Dec21 Jun22 Dec22 Jun23 Dec23 Jun24 Dec24 Jun25 Dec25
Market Cap Get a 7-Day Free Trial Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only 21.05 17.58 9.86 9.43 3.22

LSE:UJO vs COP, EOG, FANG: Market Cap Comparison

For the Oil & Gas E&P subindustry, Union Jack Oil's Market Cap, along with its competitors' market caps and Market Cap 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.


Union Jack Oil Market Cap vs Oil & Gas Industry

For the Oil & Gas industry and Energy sector, Union Jack Oil's Market Cap distribution charts can be found below:

* The bar in red indicates where Union Jack Oil's Market Cap falls into.



Union Jack Oil Market Cap Calculation

Market cap is the short version of market capitalization. It is the total market value to buy the whole company. It is equal to the share price times the number of shares outstanding.

Union Jack Oil's Market Cap for the fiscal year that ended in Dec. 2025 is calculated as

Market Cap (A: Dec. 2025 )=Share Price (A: Dec. 2025 )*Shares Outstanding (EOP) (A: Dec. 2025 )
=£0.022*146.566
=£3.22

Union Jack Oil's Market Cap for the quarter that ended in Dec. 2025 is calculated as

Market Cap (Q: Dec. 2025 )=Share Price (Q: Dec. 2025 )*Shares Outstanding (EOP) (Q: Dec. 2025 )
=£0.022*146.566
=£3.22

* 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.

Frequently Asked Questions Learn more about Market Cap →
What does a Market Cap of £5.13 Mil mean?
Union Jack Oil (LSE:UJO) has a Market Cap of £5.13 Mil as of Jun. 30, 2026. Market cap equals the total value of a company's shares: price times shares outstanding. View historical data on Union Jack Oil and its competitors. According to the industry distribution chart, Union Jack Oil ranks #912 out of 1045 companies in the Oil & Gas industry, placing it in the top 87.3%.
Is Union Jack Oil's Market Cap too high?
Union Jack Oil's current Market Cap is £5.13 Mil. Based on the distribution chart, Union Jack Oil ranks #912 out of 1045 companies in the Oil & Gas industry, which is in the bottom quartile relative to peers.
How does Union Jack Oil's Market Cap compare to COP and EOG?
According to the Oil & Gas industry distribution chart, Union Jack Oil ranks #912 out of 1045 companies for Market Cap. This places Union Jack Oil in the lower half of its industry. The industry median Market Cap is 214.93. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Market Cap for an Oil & Gas company?
The median Market Cap among Oil & Gas companies is 214.93, based on 1,045 companies in the industry. Companies in the top quartile (top 25%) have a Market Cap significantly above this median, while those in the bottom quartile fall well below. However, Market Cap should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Market Cap mean?
A high Market Cap can signal that a stock is expensive relative to its fundamentals. Market cap equals the total value of a company's shares: price times shares outstanding. View historical data on Union Jack Oil and its competitors. For the Oil & Gas industry, the median Market Cap is 214.93 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Union Jack Oil's current Market Cap is £5.13 Mil. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Union Jack Oil stock overvalued right now?
Based on GuruFocus' analysis, Union Jack Oil (LSE:UJO) is currently considered Possible Value Trap. The stock's GF Value™ is £0.07, compared to a current price of £0.04 — trading 50% below its estimated fair value. The current Market Cap is £5.13 Mil. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Market Cap calculated?
Market Cap is calculated from a company's financial statements. For Union Jack Oil (LSE:UJO), the current Market Cap is £5.13 Mil as of Jun. 30, 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.

Union Jack Oil Business Description

Industry EnergyOil & Gas
Other Exchanges UJOGF:USA1UJ0:Germany
Address 6 Charlotte Street, Bath, GBR, BA1 2NE
Union Jack Oil PLC is an onshore oil and gas exploration and production company. It mainly focuses on segment Exploration & Evaluation and Development and Production. Its principal projects consist of Biscathorpe, Burton on the Wolds, Wressle, Fiskerton Airfield, and Keddington.