The result of the combustion of fire hazardous materials at the facilities of the oil and gas complex is extensive fires, characterizing the rapid temperature rise, and as a result the destruction of load-bearing structures occurs. The dynamics of the development of such fire type requires a different approach to test the structures in order to determine the limit of fire resistance. The article presents European and American normative documents that contain methods for testing structures taking into account the requirements for the hydrocarbon temperature regime of a fire. I-steel cross-sections with flame retardant coating "Fendolite MII" are tested, and the fire resistance of these structures is defined. Conclusions on the need to conduct numerous fire tests with different types of fire protection under a hydrocarbon fire regime in Russia were made in order to obtain the necessary experimental database sufficient to create a unified methodology for calculating and introducing it into national standards.