• Bluffton: 260-824-2220
  • Fort Wayne: 800-322-8454

About Us

National Oil is a petroleum distributor based in Bluffton, Indiana.  In business for over 70 years, we provide the following products:

  • Motor vehicle gasolines and diesel fuels
  • Motor oils and greases
  • Home heaing oil
  • Farm Diesel

We also cater to wholesale customers with the following services:

  • Convenience stores for sale or lease
  • Partial financing of stores
  • Remodeling of existing stores and building new stores
  • Distribution network for fuel delivery
  • Managed inventory
  • Sales team to keep your business functioning smoothly


With origins dating back to the 1930’s as the “Airplane Service Station” at the corner of highways 1 and 124 in Bluffton, National Oil was founded in 1940 as a provider of bulk tank fuel deliveries to farmers, home heating oil deliveries to consumers, and more recently as a leading provider of Marathon, Phillips, Sunoco, and Clark gasolines and distillates to dealers in Indiana, northwest Ohio, southern Michigan, and eastern Illinois.