Brookside Energy (ASX:BRK) Operating Margin %: 0.00% (As of Dec. 2025)


ASX:BRK Brookside Energy Ltd ASX:BRK
43 GF Score
Price A$0.40
GF Value A$0.58
Valuation Possible Value Trap
! 2 Warning Signs
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What is Brookside Energy Operating Margin %?

Brookside Energy ASX:BRK 43 Operating Margin % is 0.00% as of Dec. 2025. GuruFocus rates ASX:BRK with a GF Score™ of 43/100 and a GF Value™ of A$0.58 (Possible Value Trap). The stock has 2 warning signs investors should review. Among 916 Oil & Gas companies, Brookside Energy ranks better than 93.78% on this metric.

Operating Margin % is calculated as Operating Income divided by its Revenue. Brookside Energy's Operating Income for the six months ended in Dec. 2025 was A$36.41 Mil. Brookside Energy's Revenue for the six months ended in Dec. 2025 was A$0.00 Mil. Therefore, Brookside Energy's Operating Margin % for the quarter that ended in Dec. 2025 was 0.00%.

The historical rank and industry rank for Brookside Energy's Operating Margin % or its related term are showing as below:

ASX:BRK' s Operating Margin % Range Over the Past 10 Years
Min: -62.35   Med: 50.04   Max: 77.85
Current: 44.52


ASX:BRK's Operating Margin % is ranked better than
93.78% of 916 companies
in the Oil & Gas industry
Industry Median: 6.86 vs ASX:BRK: 44.52

Brookside Energy's 5-Year Average Operating Margin % Growth Rate was 0.00% per year.

Brookside Energy's Operating Income for the six months ended in Dec. 2025 was A$36.41 Mil. Its Operating Income for the trailing twelve months (TTM) ended in Dec. 2025 was A$23.95 Mil.


Brookside Energy  (ASX:BRK) Operating Margin % Explanation

Just like Gross Margin %, it is important to see a company maintains its operating margin over time. Among the same industry, a company with higher operating margin is more efficient in its operation. It is also more stable during industry slowdown or recessions. Peter Lynch prefers those with higher margins than those with lower margins.


Be Aware

Operating Margin % can be manipulated by adjusting the rate of depreciation, depletion and amortization (DDA).

If a company is facing competition, its Operating Margin % may decline. Often the Operating Margin % declines well before the company's Revenue or even profit decline. Therefore, Operating Margin % is a very important indicator of whether the company is facing problems.

For instance, by 2012, Nokia (NOK)'s problems were well known and its stock had lost more than 90% of its market value since 2007. But Nokia’s Operating Margin % had already been in decline since 2002, although its Earnings per Share (Diluted) were still rising. Investors who paid attention to Operating Margin % would have avoided this huge loss. The same can be said for Research-in-Motion (RIMM).

Therefore, Operating Margin % is a very important screening filter for GuruFocus. GuruFocus's Buffett-Munger screener requires that the profit margin is either consistent or expanding. The Model Portfolio of the Buffett-Munger screener has outperformed the market every year since inception in 2009.


Brookside Energy Operating Margin % Related Terms


Brookside Energy Operating Margin % Historical Data

* Premium members only.

The historical data trend for Brookside Energy's Operating Margin % 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.

Brookside Energy Operating Margin % Chart

Brookside Energy Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Operating Margin %
Get a 7-Day Free Trial Premium Member Only Premium Member Only -62.35 77.85 67.61 50.04 44.52

Brookside Energy Semi-Annual Data
Jun16 Dec16 Jun17 Dec17 Jun18 Dec18 Jun19 Dec19 Jun20 Dec20 Jun21 Dec21 Jun22 Dec22 Jun23 Dec23 Jun24 Dec24 Jun25 Dec25
Operating Margin % 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 0.00 0.00 0.00 0.00 0.00

ASX:BRK vs COP, EOG, OXY: Operating Margin % Comparison

For the Oil & Gas E&P subindustry, Brookside Energy's Operating Margin %, along with its competitors' market caps and Operating Margin % 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.


Brookside Energy Operating Margin % vs Oil & Gas Industry

For the Oil & Gas industry and Energy sector, Brookside Energy's Operating Margin % distribution charts can be found below:

* The bar in red indicates where Brookside Energy's Operating Margin % falls into.


ASX:BRK
43GF Score
Brookside Energy Ltd ASX:BRK
Operating Margin % is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Brookside Energy Operating Margin % Calculation

Operating Margin % - also known as operating income margin, operating profit margin and return on sales (ROS) - is the ratio of Operating Income divided by net sales or Revenue, usually presented in percent.

Brookside Energy's Operating Margin % for the fiscal year that ended in Dec. 2025 is calculated as

Operating Margin %=Operating Income (A: Dec. 2025 ) / Revenue (A: Dec. 2025 )
=23.949 / 53.789
=44.52 %

Brookside Energy's Operating Margin % for the quarter that ended in Dec. 2025 is calculated as

Operating Margin %=Operating Income (Q: Dec. 2025 ) / Revenue (Q: Dec. 2025 )
=36.408 / 0
= %

* 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 Operating Margin % →
What does a Operating Margin % of 0.00% mean?
Brookside Energy (ASX:BRK) has a Operating Margin % of 0.00% as of Dec. 2025. Operating margin is the ratio of total operating income to net sales. View historical data on Brookside Energy and its competitors. According to the industry distribution chart, Brookside Energy ranks #57 out of 916 companies in the Oil & Gas industry, placing it in the top 6.2%.
Is Brookside Energy's Operating Margin % too high?
Brookside Energy's current Operating Margin % is 0.00%. Based on the distribution chart, Brookside Energy ranks #57 out of 916 companies in the Oil & Gas industry, which is in the top quartile — a strong position relative to peers. Overall, Brookside Energy has a GF Score™ of 43/100 and is considered Possible Value Trap, reflecting its overall financial health beyond just this single metric.
How does Brookside Energy's Operating Margin % compare to COP and EOG?
According to the Oil & Gas industry distribution chart, Brookside Energy ranks #57 out of 916 companies for Operating Margin %. This places Brookside Energy in the top 6% of its industry — outperforming the majority of peers. The industry median Operating Margin % is 6.86. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Operating Margin % for an Oil & Gas company?
The median Operating Margin % among Oil & Gas companies is 6.86, based on 916 companies in the industry. Companies in the top quartile (top 25%) have a Operating Margin % significantly above this median, while those in the bottom quartile fall well below. However, Operating Margin % 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 Operating Margin % mean?
A high Operating Margin % can signal that a stock is expensive relative to its fundamentals. Operating margin is the ratio of total operating income to net sales. View historical data on Brookside Energy and its competitors. For the Oil & Gas industry, the median Operating Margin % is 6.86 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Brookside Energy's current Operating Margin % is 0.00%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Brookside Energy stock overvalued right now?
Based on GuruFocus' analysis, Brookside Energy (ASX:BRK) is currently considered Possible Value Trap. The stock's GF Value™ is A$0.58, compared to a current price of A$0.40 — trading 31% below its estimated fair value. The current Operating Margin % is 0.00%. Brookside Energy's overall GF Score™ is 43/100 with 2 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Operating Margin % calculated?
Operating Margin % is calculated from a company's financial statements. For Brookside Energy (ASX:BRK), the current Operating Margin % is 0.00% as of Dec. 2025. 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 Brookside Energy (ASX:BRK) Overvalued in 2026?

Based on GuruFocus' analysis, Brookside Energy stock appears to be undervalued. The current stock price of A$0.40 is trading 31% below its estimated GF Value™ of A$0.58. GuruFocus considers Brookside Energy to be Possible Value Trap.

Key valuation signals for ASX:BRK:

  • Operating Margin %: 0.00%
  • GF Value™: A$0.58 vs. price of A$0.40 (31% below fair value)
  • GF Score™: 43/100 with 2 warning signs

No single metric tells the full story. See the ASX:BRK stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Brookside Energy Business Description

Industry EnergyOil & Gas
Other Exchanges RDFEF:USA8F3:Germany
Address 50 Kings Park Road, Level 1, West Perth, WA, AUS, 6005
Brookside Energy Ltd is engaged in the exploration and appraisal of oil and gas projects. The company's segments include Oil and gas exploration and Corporate. The company derives majority of its revenue from Oil and Gas Exploration. It is focused on Anadarko Basin in the western part of Oklahoma which is oil and gas rich, and generally well explored.
43GF Score

Get the complete analysis for ASX:BRK

Operating Margin % is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

A$0.40
Price
A$0.58
GF Value