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Details About U.S Crude Oil Classes and Oil Production Chemicals

The EPA has strict standards for crude oil. In this guide, you’ll learn what they are and more.

Class A Oil

A Class A oil is a flammable, volatile oil. It has a strong odor and a high evaporation rate.

Class B

Class B oils are non-sticky oils. They won’t adhere to most surfaces, so they’re fairly safe for the environment. When compared to other grades, Class B oils are less hazardous.

Heat makes a non-sticky oil sticky, and a sticky oil will adhere to porous surfaces. If a Class B evaporates, it will produce a dense residue like a Class D or C oil.

Class C

All oils in this category are black or brown with a thick consistency. Heavy crude is a good example. It’s very brown, dense, and tough to flush. This oil will sink to the ocean floor if it spills, and it will threaten marine life.

Class D

Class D oils are non-fluid oils. Paraffin, residual, and heavy crude oils fall in this category.

Oil Production Chemicals

Oil production chemicals protect pipes, improve drilling, and more. The most commonly used compounds are:

  • Sodium Carbonate
  • Potassium Hydroxide
  • Phosphoric Acid
  • Ethylene

Key Considerations

In the oil industry, crude oil prices will rise and fall. This happens when:

  • The weather stops oil production
  • There is good supply and no demand
  • Politics change the fuel industry

This is why Flatirons Chemicals offers a very cost-efficient business suite for oil production. For more details, visit

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