Focused on building reliable datasets, financial models, and research tools for value-minded investors. Committed to turning complex data into practical guidance for value-investing and long-term wealth.
Dr. Charlie Tian is the founder and CEO of GuruFocus.com, a leading global investment research platform established in 2004. With a Ph.D. in physics, Dr. Tian transitioned from science to finance, applying a data-driven, disciplined approach to value investing.
Star Petroleum Refining PCLBKK:SPRC +6.60%72 5-Year Yield-on-Cost % is 4.29 as of Jul. 27, 2026, which is 31% below its 10-year median of 6.20. GuruFocus rates BKK:SPRC with a GF Score™ of 72/100 and a GF Value™ of ฿6.73 (Significantly Overvalued). The stock has 5 warning signs investors should review. Among 500 Oil & Gas companies, Star Petroleum Refining PCL ranks worse than 53.8% on this metric.
The historical rank and industry rank for Star Petroleum Refining PCL's 5-Year Yield-on-Cost % or its related term are showing as below:
BKK:SPRC'
s 5-Year Yield-on-Cost % Range Over the Past 10 Years
Min: 0.64 Med: 6.2 Max: 13.88
Current: 4.29
During the past 13 years, Star Petroleum Refining PCL's highest Yield on Cost was 13.88. The lowest was 0.64. And the median was 6.20.
BKK:SPRC's 5-Year Yield-on-Cost % is ranked worse than 53.8% of 500
companies
in the Oil & Gas industry
Industry Median: 4.835
vs BKK:SPRC: 4.29
Star Petroleum Refining PCL (BKK:SPRC) 5-Year Yield-on-Cost % Explanation
Of course the risk here is that the company may not raise its dividends as it did before. The key is to select the companies that can consistently raise its dividends. Usually companies with long history of raising dividends tend to do so.
Star Petroleum Refining PCL 5-Year Yield-on-Cost % Related Terms
BKK:SPRC vs MPC, VLO, PSX: 5-Year Yield-on-Cost % Comparison
For the Oil & Gas Refining & Marketing subindustry, Star Petroleum Refining PCL's 5-Year Yield-on-Cost %, along with its competitors' market caps and 5-Year Yield-on-Cost % 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 Petroleum Refining PCL 5-Year Yield-on-Cost % vs Oil & Gas Industry
For the Oil & Gas industry and Energy sector, Star Petroleum Refining PCL's 5-Year Yield-on-Cost % distribution charts can be found below:
* The bar in red indicates where Star Petroleum Refining PCL's 5-Year Yield-on-Cost % falls into.
Star Petroleum Refining PCL 5-Year Yield-on-Cost % Calculation
Dividend Yield % and dividend growth of a stock is an important factor for income investors. But if company A raises its dividend constantly faster than company B, company A's future dividend yield might be much higher than Company B's even if their yields are the same now and their stock prices do not change.
Yield on Cost assumes that you buy and the stock today, and hold it for 5 years. If the company raises it dividends at the same rate as it did over the past 5 years, the dividends investors receive annually in 5 years relative to the stock price today.
Star Petroleum Refining PCL (BKK:SPRC) has a 5-Year Yield-on-Cost % of 4.29 as of Jul. 27, 2026. 5-Year Yield on Cost measures the expected yield based on a company's current yield and 5-year dividend growth. View historical data on Star Petroleum Refining PCL and its competitors. This is 31% below median its historical median of 6.20. Over the past decade, Star Petroleum Refining PCL's 5-Year Yield-on-Cost % has ranged from 0.64 to 13.88. According to the industry distribution chart, Star Petroleum Refining PCL ranks #269 out of 500 companies in the Oil & Gas industry, placing it in the top 53.8%.
Is Star Petroleum Refining PCL's 5-Year Yield-on-Cost % too high?
Star Petroleum Refining PCL's current 5-Year Yield-on-Cost % of 4.29 is 31% below median its 10-year median of 6.20. Over the past 10 years, this metric has ranged from a low of 0.64 to a high of 13.88. The Oil & Gas industry median 5-Year Yield-on-Cost % is 4.84. Star Petroleum Refining PCL's value of 4.29 is 11.3% below this industry median. Based on the distribution chart, Star Petroleum Refining PCL ranks #269 out of 500 companies in the Oil & Gas industry, which is below the industry midpoint. Overall, Star Petroleum Refining PCL has a GF Score™ of 72/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Star Petroleum Refining PCL's 5-Year Yield-on-Cost % compare to MPC and VLO?
According to the Oil & Gas industry distribution chart, Star Petroleum Refining PCL ranks #269 out of 500 companies for 5-Year Yield-on-Cost %. This places Star Petroleum Refining PCL in the lower half of its industry. The industry median 5-Year Yield-on-Cost % is 4.84. Star Petroleum Refining PCL's value of 4.29 is 11.3% below this benchmark. Historically, Star Petroleum Refining PCL's own 5-Year Yield-on-Cost % has ranged from 0.64 to 13.88 over the past decade. While the company's 10-year median is 6.20 vs. the industry median of 4.84, Star Petroleum Refining 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 5-Year Yield-on-Cost % for an Oil & Gas company?
The median 5-Year Yield-on-Cost % among Oil & Gas companies is 4.84, based on 500 companies in the industry. Companies in the top quartile (top 25%) have a 5-Year Yield-on-Cost % significantly above this median, while those in the bottom quartile fall well below. However, 5-Year Yield-on-Cost % should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Star Petroleum Refining PCL's current 5-Year Yield-on-Cost % of 4.29 is 11.3% 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 5-Year Yield-on-Cost % mean?
A high 5-Year Yield-on-Cost % can signal that a stock is expensive relative to its fundamentals. 5-Year Yield on Cost measures the expected yield based on a company's current yield and 5-year dividend growth. View historical data on Star Petroleum Refining PCL and its competitors. For the Oil & Gas industry, the median 5-Year Yield-on-Cost % is 4.84 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Star Petroleum Refining PCL's current 5-Year Yield-on-Cost % is 4.29, which is 31% below median its own 10-year median of 6.20. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Star Petroleum Refining PCL stock overvalued right now?
Based on GuruFocus' analysis, Star Petroleum Refining PCL (BKK:SPRC) is currently considered Significantly Overvalued. The stock's GF Value™ is ฿6.73, compared to a current price of ฿10.50 — trading 56% above its estimated fair value. The current 5-Year Yield-on-Cost % is 4.29, which is 31% below median its 10-year median of 6.20 and 11.3% below the Oil & Gas industry median of 4.84. Star Petroleum Refining PCL's overall GF Score™ is 72/100 with 5 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is 5-Year Yield-on-Cost % calculated?
5-Year Yield-on-Cost % is calculated from a company's financial statements. For Star Petroleum Refining PCL (BKK:SPRC), the current 5-Year Yield-on-Cost % is 4.29 as of Jul. 27, 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 Star Petroleum Refining PCL (BKK:SPRC) Overvalued in 2026?
Based on GuruFocus' analysis, Star Petroleum Refining PCL stock appears to be overvalued.
The current stock price of ฿10.50 is trading 56% above its estimated GF Value™ of ฿6.73.
GuruFocus considers Star Petroleum Refining PCL to be Significantly Overvalued.
Key valuation signals for BKK:SPRC:
5-Year Yield-on-Cost %: 4.29 (31% below median its 10-year median of 6.20)
GF Value™: ฿6.73 vs. price of ฿10.50 (56% above fair value)
Industry Position: 11.3% below the Oil & Gas median (#269 of 500)
No single metric tells the full story. See the BKK:SPRC stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Star Petroleum Refining PCL operates petroleum refinery in Thailand. The company produces multiple petroleum products such as Liquefied Petroleum Gas, gasoline, jet fuel, diesel, fuel oil, asphalt, and others. Geographically the majority of its sales are conducted in Thailand. However, the company also produces petroleum products for international markets.
72GF Score
Get the complete analysis for BKK:SPRC
5-Year Yield-on-Cost % is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
Quick Browse
Personalize
Premium Gurus 
Create New Portfolio
BKK:SPRC has been successfully added to your 
