Star Energy Group (LSE:STAR) Effective Interest Rate on Debt %: 26.44% (As of Dec. 2025)


LSE:STAR Star Energy Group PLC LSE:STAR
42 GF Score
Price £0.18
GF Value £0.07
Valuation Significantly Overvalued
! 6 Warning Signs
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What is Star Energy Group Effective Interest Rate on Debt %?

Star Energy Group LSE:STAR +2.86% 42 Effective Interest Rate on Debt % is 26.44% as of Dec. 2025. GuruFocus rates LSE:STAR with a GF Score™ of 42/100 and a GF Value™ of £0.07 (Significantly Overvalued). The stock has 6 warning signs investors should review.

Effective Interest Rate on Debt % is the usage rate that a borrower actually pays on a debt. It is calculated as the positive value of Interest Expense divided by its average total debt. Total debt equals to Long-Term Debt & Capital Lease Obligation plus Short-Term Debt & Capital Lease Obligation. Star Energy Group's annualized positive value of Interest Expense for the quarter that ended in Dec. 2025 was £4.27 Mil. Star Energy Group's average total debt for the quarter that ended in Dec. 2025 was £16.13 Mil. Therefore, Star Energy Group's annualized Effective Interest Rate on Debt % for the quarter that ended in Dec. 2025 was 26.44%.


Star Energy Group  (LSE:STAR) Effective Interest Rate on Debt % Explanation

Effective Interest Rate on Debt % measures the usage rate that a borrower actually pays on a debt.


Star Energy Group Effective Interest Rate on Debt % Related Terms


Star Energy Group Effective Interest Rate on Debt % Historical Data

* Premium members only.

The historical data trend for Star Energy Group's Effective Interest Rate on Debt % 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.

Star Energy Group Effective Interest Rate on Debt % Chart

Star Energy Group Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Effective Interest Rate on Debt %
Get a 7-Day Free Trial Premium Member Only Premium Member Only 15.88 17.68 29.00 27.31 23.25

Star Energy Group Semi-Annual Data
Jun16 Dec16 Jun17 Dec17 Jun18 Dec18 Jun19 Dec19 Jun20 Dec20 Jun21 Dec21 Jun22 Dec22 Jun23 Dec23 Jun24 Dec24 Jun25 Dec25
Effective Interest Rate on Debt % 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 34.90 31.78 27.92 27.51 26.44

LSE:STAR vs COP, EOG, FANG: Effective Interest Rate on Debt % Comparison

For the Oil & Gas E&P subindustry, Star Energy Group's Effective Interest Rate on Debt %, along with its competitors' market caps and Effective Interest Rate on Debt % 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.


Star Energy Group Effective Interest Rate on Debt % vs Oil & Gas Industry

For the Oil & Gas industry and Energy sector, Star Energy Group's Effective Interest Rate on Debt % distribution charts can be found below:

* The bar in red indicates where Star Energy Group's Effective Interest Rate on Debt % falls into.


LSE:STAR
42GF Score
Star Energy Group PLC LSE:STAR
Effective Interest Rate on Debt % is just one metric. See GF Score™, valuation, warning signs, and more.
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Star Energy Group Effective Interest Rate on Debt % Calculation

Star Energy Group's annualized Effective Interest Rate on Debt % for the fiscal year that ended in Dec. 2025 is calculated as

Effective Interest Rate on Debt %
=-1  *  Interest Expense/( (Total Debt  (A: Dec. 2024 )+Total Debt  (A: Dec. 2025 ))/ count )
=-1  *  -4.438/( (19.709+18.468)/ 2 )
=-1  *  -4.438/19.0885
=23.25 %

where

Total Debt  (A: Dec. 2024 )
=Long-Term Debt & Capital Lease Obligation + Short-Term Debt & Capital Lease Obligation
=12.076 + 7.633
=19.709

Total Debt  (A: Dec. 2025 )
=Long-Term Debt & Capital Lease Obligation + Short-Term Debt & Capital Lease Obligation
=13.612 + 4.856
=18.468

Star Energy Group's annualized Effective Interest Rate on Debt % for the quarter that ended in Dec. 2025 is calculated as

Effective Interest Rate on Debt %
=-1  *  Interest Expense/( (Total Debt  (Q: Jun. 2025 )+Total Debt  (Q: Dec. 2025 ))/ count )
=-1  *  -4.266/( (13.8+18.468)/ 2 )
=-1  *  -4.266/16.134
=26.44 %

where

Total Debt  (Q: Jun. 2025 )
=Long-Term Debt & Capital Lease Obligation + Short-Term Debt & Capital Lease Obligation
=11.669 + 2.131
=13.8

Total Debt  (Q: Dec. 2025 )
=Long-Term Debt & Capital Lease Obligation + Short-Term Debt & Capital Lease Obligation
=13.612 + 4.856
=18.468

* 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.

In the calculation of annual Effective Interest Rate on Debt %, the Interest Expense of the last fiscal year and the average total debt over the fiscal year are used. In calculating the quarterly data, the Interest Expense data used here is two times the semi-annual (Dec. 2025) interest expense data. Effective Interest Rate on Debt % is displayed in the 30-year financial page.

What does a Effective Interest Rate on Debt % of 26.44% mean?
Star Energy Group (LSE:STAR) has a Effective Interest Rate on Debt % of 26.44% as of Dec. 2025. Effective interest rate on debt is the rate a company actually pays on its debt. View historical data on Star Energy Group and its competitors.
Is Star Energy Group's Effective Interest Rate on Debt % too high?
Star Energy Group's current Effective Interest Rate on Debt % is 26.44%. Overall, Star Energy Group has a GF Score™ of 42/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Star Energy Group's Effective Interest Rate on Debt % compare to COP and EOG?
Star Energy Group's Effective Interest Rate on Debt % of 26.44% can be compared against companies in the Oil & Gas industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Effective Interest Rate on Debt % for an Oil & Gas company?
A good Effective Interest Rate on Debt % depends on the Oil & Gas industry context. However, Effective Interest Rate on Debt % 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 Effective Interest Rate on Debt % mean?
A high Effective Interest Rate on Debt % can signal that a stock is expensive relative to its fundamentals. Effective interest rate on debt is the rate a company actually pays on its debt. View historical data on Star Energy Group and its competitors. Star Energy Group's current Effective Interest Rate on Debt % is 26.44%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Star Energy Group stock overvalued right now?
Based on GuruFocus' analysis, Star Energy Group (LSE:STAR) is currently considered Significantly Overvalued. The stock's GF Value™ is £0.07, compared to a current price of £0.18 — trading 157.1% above its estimated fair value. The current Effective Interest Rate on Debt % is 26.44%. Star Energy Group's overall GF Score™ is 42/100 with 6 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Effective Interest Rate on Debt % calculated?
Effective Interest Rate on Debt % is calculated from a company's financial statements. For Star Energy Group (LSE:STAR), the current Effective Interest Rate on Debt % is 26.44% 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 Star Energy Group (LSE:STAR) Overvalued in 2026?

Based on GuruFocus' analysis, Star Energy Group stock appears to be overvalued. The current stock price of £0.18 is trading 157.1% above its estimated GF Value™ of £0.07. GuruFocus considers Star Energy Group to be Significantly Overvalued.

Key valuation signals for LSE:STAR:

  • Effective Interest Rate on Debt %: 26.44%
  • GF Value™: £0.07 vs. price of £0.18 (157.1% above fair value)
  • GF Score™: 42/100 with 6 warning signs

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


Star Energy Group Business Description

Industry EnergyOil & Gas
Other Exchanges IGESF:USAK1P3:Germany
Address Barfield Lane off Wragby Road, Welton Gathering Centre, Sudbrooke, Lincoln, GBR, LN2 2QX
Star Energy Group PLC is an onshore energy business. Its main focus has been on oil and gas extraction. The group's principal activities are exploring for, appraising, developing and producing oil and gas and developing geothermal projects. Its business segments includes Oil and Gas, which generates the majority of the revenue, and the Geothermal segment. The company has two geographical areas of operation, the United Kingdom and Croatia. All revenues are derived in the United Kingdom. Its products lines are Oil sales, Electricity sales, Gas sales, and Other.
42GF Score

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Effective Interest Rate on Debt % is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

£0.18
Price
£0.07
GF Value