Great, friendly service from a trustworthy local company. We would highly recommend Duncan Oil for your heating oil needs.
Shaana & Larry DaumannBeavercreek Ohio Residents
ABOUT US 
“This company shall continue forever.”
– Roger McDaniel, CEO
Duncan Oil Company is a family owned and operated company providing quality petroleum products to customers for over 60 years. In that time Duncan has grown from a small company in Beavercreek, Ohio to a major fuel supplier with customers spanning across thirteen states.
Who we are
We specialize in supplying independent supermarket fuel centers, as well as assisting in the forecasting, designing, building, managing, and supporting of the fueling center. We are also a proud distributor for the Valero, Marathon, Clark, and VP Brand. As well, we also service and supply product for numerous unbranded customers.
We also operate a separate transport company, DOTS, as well as a construction and maintenance company, complete with environmental consultation, All In One. This enables us to be a complete “one-stop shop” for all of our customers’ petroleum needs.
Our vision
Our values
Our experience
Satisfied customers
Years of experience
Distributed brands
States serviced
OUR SERVICES
Because of our wide diversity in the fuel industry, we have a huge variety of services available to our customers. Whether it’s getting a timely fuel delivery to your home or gas station, repair to your fuel dispensers, or even environmental compliance with your on site fuel storage, Duncan Oil Company can assist you with virtually any asset you have when it comes to maintaining and running your fuel operations.
Residential
Since 1960 Duncan Oil has been the trusted choice for heating oil in Dayton and the surrounding areas. Proudly offering clean-burning propane and safe, economical heating oil, Duncan Oil will keep you and your family warm.
24/7 Customer Support
We offer emergency service for all of our customers. For residential, please call our tank wagon division at 1.888.DUNCAN.OIL. If you’re a retail location, please contact our DOTS Dispatch department at 877.315.3687.
Retail
We offer a complete, worry-free solution to all of your retail fueling needs with our industry-leading programs. To ensure your success, our marketers will perform a thorough evaluation of your site, including market research, on-site inspection, as well as analysis of competitive and economic conditions. We also offer pre-engineered layouts for C-stores, with fully customizable options to meet your specific needs.
Services
Staffed by industry veterans, All In One Maintenance is Duncan Oil’s own petroleum maintenance division that has been in operation for over twenty years. As the petroleum industry continues to grow with technological advancements, so does All In One’s repertoire. All In One serves the greater Ohio, Kentucky, and Indiana areas, covering every type of maintenance and environmental solution that your retail location could possibly need.
Wholesale
We offer wholesale fueling options for our customers who demand high volume fuel on tight deadlines. We will save you time and money by bringing your fuel to your location. Our wholesale tank wagon division can fill up to 5,000 gallons in a single load. We will even fill directly into your equipment to save you the hassle and time.
Performance Fuels
We at Duncan Oil are proud to offer our very own division specializing in fuels for racing applications, as well as performance enthusiasts. From the dirt track to the drag strip, and every Sunday cruise in between, Duncan Oil Performance Fuels has the right fuel for you and your vehicle.
CUSTOMER FEEDBACK
Duncan Oil has give us here at A&A Truck Plaza great service and support when needed. Keep up the good work. Thanks!
Sally CaseA&A Truck Plaza, Jackson, Ohio
Great selection and knowledge, both technical and on the track, of various brands of fuel. I couldn’t be happier with Duncan Oil Performance Fuels.
Ron LeachOwner: Ron's Custom Paint - Cincinnati, Ohio
I recently switched propane suppliers and have been thrilled with the friendly, knowledgeable staff and excellent customer service provided by Duncan Oil.
Mike HannahJamestown, Ohio Resident
I couldn’t ask for better support in a supplier. Duncan’s quick, responsive team goes above and beyond to help with my every need.
Lloyd GoffOwner: All in One Marathon, Dayton Ohio
I have been doing business with Duncan Oil for nearly 20 years, and in that time I feel that we have developed a strong, mutual relationship based upon loyalty and integrity.
Keith HuelskampOwner: Dixie Drive-Thru, Englewood Drive-Thru, Interstate
Drive-Thru, and Kettering Cruise-Thru
Duncan has always provided on-time delivery and friendly service. I know I can count on Duncan Oil.
Justin AdamsBeavercreek Ohio Resident
We have been doing business with Duncan 3 years and their customer service has always provide a prompt response, and that is appreciated.
Jimmy WadeMcCleary Oil Co., Chambersburg, PA
Duncan Oil has been a very loyal and responsible community oriented business.
Gary WiseWrestling Coach: Beavercreek High School, Beavercreek Ohio
I trust and recommend Duncan Oil Performance Fuels in every high-performance engine I build. From street to strip, Duncan has the right fuel for your needs.
Dave MiddletonOwner: Performance Clinic Custom Engines - Dayton, Ohio
We switched to Duncan Oil five years ago. They are reliable and on time. Duncan understands the importance of being here to keep my fleet on the road.
Bob KennedyOwner: Aqua Falls Water Co.
