[Class : 40] Treatment Of Materials; Processing Of Oils, Fuels And Gas; Processing Of Natural Gas ; Refining Services; Oil And Fuel Refining; Refining Of Petrochemicals And Fuel Materials; Heat Treatment Of Pipes And Tubes Made Of Metal; Petroleum Gas Liquefaction Services; Treatment Of Oil Spills; Gas Production Services; Oil And Gas Well Treatment; Recycling Of Waste Oils And Industrail Oils; Technical Consulting In The Field Of Oil And Gas Production And Processing.