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Sunoco LPSUN -0.83%80 Operating Margin % is 8.09% as of Mar. 2026, which is 134% above its 10-year median of 3.45. GuruFocus rates SUN with a GF Score™ of 80/100 and a GF Value™ of $52.39 (Significantly Overvalued). The stock has 12 warning signs investors should review. Among 918 Oil & Gas companies, Sunoco LP ranks worse than 55.88% on this metric.
Operating Margin % is calculated as Operating Income divided by its Revenue. Sunoco LP's Operating Income for the
three
months ended in Mar. 2026 was $865 Mil. Sunoco LP's Revenue for the
three
months ended in Mar. 2026 was $10,690 Mil. Therefore, Sunoco LP's Operating Margin % for the quarter that ended in Mar. 2026 was 8.09%.
Warning Sign:
Sunoco LP operating margin has been in a 5-year decline. The average rate of decline per year is -1.8%.
The historical rank and industry rank for Sunoco LP's Operating Margin % or its related term are showing as below:
SUN'
s Operating Margin % Range Over the Past 10 Years
Min: 2.14 Med: 3.45 Max: 4.87
Current: 4.87
SUN's Operating Margin % is ranked worse than 55.88% of 918
companies
in the Oil & Gas industry
Industry Median: 7.11
vs SUN: 4.87
Sunoco LP's 5-Year Average Operating Margin % Growth Rate was -1.80% per year.
Sunoco LP's Operating Income for the
three
months ended in Mar. 2026 was $865 Mil.
Its Operating Income for the trailing twelve months (TTM) ended in Mar. 2026 was $1,880 Mil.
Warning Sign:
Sunoco LP has recorded a loss in operating income at least once over the past 3 years.
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 Nokias 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.
Sunoco LP Operating Margin % Related Terms
Sunoco LP Operating Margin % Historical Data
* Premium members only.
The historical data trend for Sunoco LP'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.
SUN vs DINO, PBF, IEP: Operating Margin % Comparison
For the Oil & Gas Refining & Marketing subindustry, Sunoco LP'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.
Sunoco LP Operating Margin % vs Oil & Gas Industry
For the Oil & Gas industry and Energy sector, Sunoco LP's Operating Margin % distribution charts can be found below:
* The bar in red indicates where Sunoco LP's Operating Margin % falls into.
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.
Sunoco LP's Operating Margin % for the fiscal year that ended in Dec. 2025 is calculated as
* 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.
Sunoco LP (SUN) has a Operating Margin % of 8.09% as of Mar. 2026. Operating margin is the ratio of total operating income to net sales. View historical data on Sunoco LP and its competitors. This is 134% above median its historical median of 3.45. Over the past decade, Sunoco LP's Operating Margin % has ranged from 2.14 to 4.87. According to the industry distribution chart, Sunoco LP ranks #513 out of 918 companies in the Oil & Gas industry, placing it in the top 55.9%.
Is Sunoco LP's Operating Margin % too high?
Sunoco LP's current Operating Margin % of 8.09% is 134% above median its 10-year median of 3.45. Over the past 10 years, this metric has ranged from a low of 2.14 to a high of 4.87. The Oil & Gas industry median Operating Margin % is 7.11. Sunoco LP's value of 8.09% is 13.8% above this industry median. Based on the distribution chart, Sunoco LP ranks #513 out of 918 companies in the Oil & Gas industry, which is below the industry midpoint. Overall, Sunoco LP has a GF Score™ of 80/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Sunoco LP's Operating Margin % compare to DINO and PBF?
According to the Oil & Gas industry distribution chart, Sunoco LP ranks #513 out of 918 companies for Operating Margin %. This places Sunoco LP in the lower half of its industry. The industry median Operating Margin % is 7.11. Sunoco LP's value of 8.09% is 13.8% above this benchmark. Historically, Sunoco LP's own Operating Margin % has ranged from 2.14 to 4.87 over the past decade. While the company's 10-year median is 3.45 vs. the industry median of 7.11, Sunoco LP 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 Operating Margin % for an Oil & Gas company?
The median Operating Margin % among Oil & Gas companies is 7.11, based on 918 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. Sunoco LP's current Operating Margin % of 8.09% is 13.8% 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 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 Sunoco LP and its competitors. For the Oil & Gas industry, the median Operating Margin % is 7.11 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Sunoco LP's current Operating Margin % is 8.09%, which is 134% above median its own 10-year median of 3.45. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Sunoco LP stock overvalued right now?
Based on GuruFocus' analysis, Sunoco LP (SUN) is currently considered Significantly Overvalued. The stock's GF Value™ is $52.39, compared to a current price of $73.71 — trading 40.7% above its estimated fair value. The current Operating Margin % is 8.09%, which is 134% above median its 10-year median of 3.45 and 13.8% above the Oil & Gas industry median of 7.11. Sunoco LP's overall GF Score™ is 80/100 with 12 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 Sunoco LP (SUN), the current Operating Margin % is 8.09% as of Mar. 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 Sunoco LP (SUN) Overvalued in 2026?
Based on GuruFocus' analysis, Sunoco LP stock appears to be overvalued.
The current stock price of $73.71 is trading 40.7% above its estimated GF Value™ of $52.39.
GuruFocus considers Sunoco LP to be Significantly Overvalued.
Key valuation signals for SUN:
Operating Margin %: 8.09% (134% above median its 10-year median of 3.45)
GF Value™: $52.39 vs. price of $73.71 (40.7% above fair value)
Industry Position: 13.8% above the Oil & Gas median (#513 of 918)
No single metric tells the full story. See the SUN stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Sunoco LP is a Delaware limited partnership formed in June 2012 by Susser Holdings Corporation or SUSS. In September 2012, the Company completed its initial public offering. The Company, along with its wholly owned subsidiary, is an independent motor fuel distributor by gallons in Texas, and among the distributors of Valero and Chevron branded motor fuel in the United States. The Company also receives rental income from real estate that it leases or subleases. SUSS operated approximately 580 retail convenience stores under its proprietary Stripes convenience store brand at year-end, mainly in growing Texas markets. Stripes is an independent chain of convenience stores in Texas based on store count and retail motor fuel volumes sold. Its business is integral to the success of SUSS' retail operations, and SUSS purchases substantially all of its motor fuel from the Company. In addition to distributing motor fuel, it also distributes other petroleum products such as propane and lube oil, and receives rental income from real estate that it leases or subleases. The Company purchases motor fuel mainly from independent refiners and oil companies and distributes it throughout Texas and in Louisiana, New Mexico and Oklahoma. The Company competes mainly with other independent motor fuel distributors. The Company is subject to various federal, state and local environmental laws and regulations, including those relating to underground storage tanks; the release or discharge of hazardous materials into the air, water and soil; the generation, storage, handling, use, transportation and disposal of regulated materials; the exposure of persons to regulated materials; and the remediation of contaminated soil and groundwater.
80GF Score
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