Our history is a part of everything we do. The founder of Greg’s Petroleum Service, Harold ‘Greg’ Gregory, began working at Ken Teague’s Standard Oil Distributorship in the early 1960s. While working at that gas station in Delano, the idea of Greg’s Petroleum began to form. By 1963 he had bought the business and established Greg’s Petroleum Service as a fuel supplier and delivery service.

Over the years, different members of the family have joined the business and helped it grow. The family work ethic and history with the community helped establish Greg’s Petroleum Service as a leading fuel provider in the San Joaquin Valley and the surrounding areas. Today the company services many customers in agriculture, oil, construction, retail, and other vital industries. Providing the fuel and lubrication supplies these businesses require is a privilege and honor for the Greg’s Petroleum Service family.

We can contribute part of the success we have been able to achieve as a business to our partnership with strong brands to offer superior fuels and lubrication technologies. The three leading brands that we provide to our customers are Chevron, Valvoline™, and Havoline.

Chevron began with the Pacific Coast Oil Co., right here in California in 1879. Since then, it has grown to become one of the largest fuel providers in the world. Chevron fuel products have been a part of our company since the very beginning. We trust Chevron fuels because they offer superior technology, including the Techron additive in gasoline products to help reduce emissions, improve performance and keep engines clean. These are a few of the top Chevron products most popular among our customers:

HDAX® 5200 Low Ash Gas Engine Oil, SAE 15W-40, 30, 40 is a high-quality engine oil for low maintenance machinery. It offers valve protection and excellent low-temperature performance. It cleans cranks and pistons to help prevent future maintenance issues.
Chevron 1000 THF hydraulic oil is a top-rated product among our agricultural customers. It is a high-quality hydraulic tractor fluid formulated for transmissions and brakes. It is multifunctional for use in a variety of machinery and is ISOCLEAN certified.
Meropa® 100 Industrial Gear Oil is another popular order item. This lubricant provides quality protection to industrial gears and machinery, even under the most demanding conditions. It helps to minimize harmful deposits, which can damage mechanisms and helps to maintain long equipment and oil life.

Valvoline™ is a leading provider of motor oils and lubrication products. It all started in 1866 when Dr. John Ellis developed a petroleum-based lubricant for steam engines. He founded a company to research and develop more lubrication technology. Now, Valvoline™ is a leading provider of lubrication supplies, and is ranked the #3 passenger car motor oil brand and operates nearly 1,170 oil change locations across the country. It is the only motor oil brand with a dedicated engine lab for product testing. Here are a few most popular items ordered by our customers:

Havoline lubricant and motor oil products are a division of Chevron. These synthetic products provide the best protection for your engine and enhance performance. Designed for the latest engine changes and technology, their range of synthetic oil products are very popular with our customers and offer a variety of benefits.

These are just a few of the products we offer to our customers. We have an exhaustive supply list and can find the products you need for your equipment and business needs. Our team can provide recommendations based on the type of equipment you use so you get the best value for your money. We believe in offering our customers the best. That’s why we work with some of the most trusted brands in the industry.

Besides fuel and lubrication delivery services, Greg’s Petroleum Service has expanded to offer additional services including:

  • Oil Analysis: This is a preventative maintenance program designed to extend the life of your equipment and prevent costly repairs. Our analysis team will test oils in your machinery and provide detailed reports on the condition of the oil and how it affects performance. Customers who sign up for this program can then make more informed ordering decisions and avoid expensive repairs and equipment downtime.
  • Branding opportunities: Greg’s Petroleum Service is pleased to offer retail branding opportunities for customers who wish to start their own franchise business. We work with Chevron to provide retail branding opportunities as well as Havoline and Valvoline™ to offer quick lube and instant oil change business opportunities.
  • Automotive Chemical Supplier: We offer our customers more than fuel and lubricant products. We are proud to support many automotive repair shops with the shop chemicals and supplies they need to run their businesses.

These are only a few of the services we offer at Greg’s Petroleum Service. There are many more, and each helps to support local businesses in the area. As a family business for over 50 years, we’ve been fortunate to build a great customer base right in our home. We are grateful for Harold’s vision and commitment in starting this company. We are also appreciative of all the members of our team who work hard each day to serve our customers. It’s why we love what we do!