Mazut is a heavy, low quality fuel oil, used in generating plants and similar applications. In the United States and Western Europe, mazut is blended or broken down with the end product being diesel.

Mazut is using for heating houses in former Global Word that do not have the facilities to blend or break it down into more traditional petro-chemicals. In the west, furnaces that burn mazut are commonly called "waste oil" heaters or "waste oil" furnaces.



  • "Very Low Sulphur" is mazut with a sulphur content of 0.5%
  • "Low Sulphur" is a mazut with a sulphur content of 0.5-1.0%
  • "Normal Sulphur" is a mazut with a sulphur content of 1.0-2.0%
  • "High Sulphur" is a mazut with a sulphur content of 2.0-3.5%

The number of producers in Russia is limited. Refineries that produce this are generally the largest of oil companies such as Lukoil and Rosneft, etc.


  • Most of the remainder of this specific product is reserved by state quotas for state controlled companies abroad.
At present, as evidenced by the above market conditions, demand exceeds many times the available supply. In such cases, the refineries dictate terms for the sale. At present, universally, whether state controlled corporation or private company, domestic or foreign, are for total cash pre-payment, 100%, 21 days in advance of the delivery date. Said another way, the delivery date is set only after the cash payment is registered (cleared) at the refinery’s bank account. The arrangement is not negotiable with the refineries. (Please refer to producer’s own web sites for confirmation of this fact.) Low to high sulfur mazut is available from Russia and other CIS countries (Kazakhstan, Azerbaijan, Turkmenistan). The technical specifications are represented in the same way, according to the Russian GOST standard 10585-99. Many people ask the difference between origins, and the main difference is the price. The Russian origin mazut demands higher prices.