A CNC metal milling lathe machine cutting metal in an industrial manufacturing factory

We serve our fellow industrial manufacturers

Dennis Oil Company, family-owned since 1940, is a large manufacturer/wholesaler of industrial manufacturing lubricants and factory supplies. We offer a comprehensive line of gear oils, hydraulic fluids, greases, and other products to support the manufacturing industry.

Industrial Manufacturing Products

Cutting Oils

Specialty oils are used during any process that removes metal or shapes metal.


High-temperature, extreme pressure, food-grade, open-gear and semi-fluid, universal, moly, high-shock & load, sprayable, and roller lube.

Gear Lubricants

Specialty high-performance gear lubricants for industrial and automotive applications including multi-grades, sprayable open-gear, and food-grade oils.

Industrial Oils

Specialty and multi-purpose turbine oil, oven-chain lubricants, power steering,  premium food-grade, form oil, heat-transfer oils, and rock drill oils.

Hydraulic Oils

Hydraulic oils to handle any hydraulic system, R &O, anti-wear, J20-C, and CAT applications.


Specialty hand, degreasers, asphalt cleaners, and industrial-strength cleaners for a variety of applications.

Other products

  • Heavy-Duty Engine Oils
  • Automotive Oils
  • Transmission Fluids
  • Compressor Oils
  • Bar and Chain Oils
  • Food Grade Lubricants
  • Oil and Fuel Additives
  • Anti- Freeze

We understand manufacturing

factory worker

We understand the needs of our manufacturing clients, because we’ve been in the manufacturing business for more than 80 years.

We know how important it is to have the right amount of product, on a dependable schedule, at a fair price. We’ve seen firsthand how the right lubricants and fluids keep a shop operating, day after day, with less wear and tear or downtime.

Running out of hydraulic fluid unexpectedly could shut your operation down, which costs you money. We solve that problem before it happens, by managing your supply inventory. We can keep your tanks full, so you can keep working.

We also deliver 80-plus years of product knowledge and experience, so you get the best product for the job.

Premium industrial-manufacturing lubricants keep your factory running smoothly

See why American factories have trusted Dennis Oil Company for more than 80 years!

  • Reliable product sourcing: Since we manufacture many of our products in-house, we are more protected from supply and demand issues that hit the market.
  • Effortless inventory: We can manage your inventory for you, so your tanks are always full.
  • High-quality products: We offer products that meet or exceed industry standards – backed by third-party laboratory testing.

Quick delivery: With four locations, we can get products to your shop quickly.

We Deliver Real Customer Service

Call us today

  • A real person will answer your phone call.
  • Our salespeople will meet you in person at your location.
  • Our delivery drivers will come to your door.

With four locations in Missouri, we travel as far as Kansas, Oklahoma, and Arkansas.