Brief description: To avoid power-consuming and capital-intensive stages of syngas production, a promising alternative option of small-capacity GTL technologies was proposed, viz., direct partial oxidation of hydrocarbon gases and further carbonylation and/or oligomerization of the oxidation products. The process of direct oxidation of “fat” petroleum gases, which has been developed at IPCP RAS and ICP RAS, provides, depending on conditions of the process, either oxygen-containing products (methanol, formaldehyde, etc.) and CO, or light olefins and CO. Through interaction of oxygenates and CO or olefins and CO, a wide range of GTL products of a new type with high value added can be produced. The most of these products can be used directly at petroleum production, transportation and processing of produced petroleum stock or as fuel additives.