Sinclair Oil overview

Sinclair Oil Corporation is an American petroleum corporation, founded by Harry F. Sinclair on May 1, 1916, as the Sinclair Oil and Refining Corporation by combining the assets of 11 small petroleum companies. Originally a New York corporation, Sinclair Oil reincorporated in Wyoming in 1976.
The staff at Sinclair Oil come from unusually diverse demographic backgrounds. The company is 34.6% female and 29.2% ethnic minorities. Despite its diversity in other areas, Sinclair Oil employees are noticeably lacking in political diversity. It has an unusually high proportion of employees who are members of the Republican Party, at 92.3%. Employees seem to enjoy working in an otherwise diverse workplace that is dominated by members of the Republican Party. Sinclair Oil has great employee retention with staff members usually staying with the company for 3.9 years.
A large utilities company with 1,200 employees and an annual revenue of $5.1B, Sinclair Oil is headquartered in Utah.

The Organization’s Mission

Sinclair relentlessly pursues a safe, reliable, environmentally responsible and a profitable operation, ensuring a sustainable future for our owners and employees and the communities where we operate.







Founded in



Salt Lake City, UT


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The team at Sinclair Oil

Key People
  • Ross Matthews (ceo)
  • Harry Sinclair (founder)
  • Clint Ensign (VP)
  • Holding (former CEO, Owner)

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Sinclair Oil Rankings

Sinclair Oil is ranked #55 on the Best Companies to Work For in Utah list. Zippia's Best Places to Work lists provide unbiased, data-based evaluations of companies. Rankings are based on government and proprietary data on salaries, company financial health, and employee diversity.

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Sinclair Oil careers

On average, employees at Sinclair Oil stay with the company for 3.9 years. Employees most commonly join Sinclair Oil after leaving Servtech. When they leave Sinclair Oil, they most frequently get their next job at Firestone Complete Auto Care.

Average Length of Employment
Marathon Oil4.0 years

Sinclair Oil

3.9 years
Hess2.7 years
Top Employers Before Sinclair Oil
Walmart6.5 %
Chevron6.5 %
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Top Employers After Sinclair Oil
Gateway7.0 %
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Sinclair Oil Financial Performance

Performance Score
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> $1B

Founded in


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Sinclair Oil Competitors

Average Salary
Star Transportation
Star Transportation

Frequently Asked Questions about Sinclair Oil

When was Sinclair Oil founded?

Sinclair Oil was founded in 1916.

How many Employees does Sinclair Oil have?

Sinclair Oil has 1,200 employees.

How much money does Sinclair Oil make?

Sinclair Oil generates $5.1B in revenue.

What industry is Sinclair Oil in?

Sinclair Oil is in the energy industry.

What is Sinclair Oil's mission?

Sinclair Oil's mission statement is "Sinclair relentlessly pursues a safe, reliable, environmentally responsible and a profitable operation, ensuring a sustainable future for our owners and employees and the communities where we operate."

What type of company is Sinclair Oil?

Sinclair Oil is a private company.

Who are Sinclair Oil's competitors?

Sinclair Oil competitors include Hess, CITGO Petroleum, Marathon Oil, Valero Energy, ONEOK, Marathon Petroleum, The Gas Company, Sunoco, Gate Petroleum, Admiral Petroleum Company, ConocoPhillips, Star Transportation, Phillips Petroleum International Investment Co, Penn Virginia, Murphy Oil USA, EAST COAST ENERGY, Henry, RaceTrac, Dead River, Condon Oil.

Who works at Sinclair Oil?

Ross Matthews (ceo)

Harry Sinclair (founder)

Clint Ensign (VP)

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You can find out what it is like to work at Sinclair Oil, also known as SINCLAIR OIL AND REFINING CORP, Sinclair Oil, Sinclair Oil & Refining Corporation and Sinclair Oil Corporation.

Zippia gives an in-depth look into the details of Sinclair Oil, including salaries, political affiliations, employee data, and more, in order to inform job seekers about Sinclair Oil. The employee data is based on information from people who have self-reported their past or current employments at Sinclair Oil. While we have made attempts to ensure that the information displayed are correct, Zippia is not responsible for any errors or omissions, or for the results obtained from the use of this information. The data presented on this page does not represent the view of Sinclair Oil and its employees or that of Zippia.