Quantification of a company’s competitiveness in the gas industry is necessary in order to find the possibility for that entity to maintain or increase its competitive advantage in the respective markets for goods and services. Therefore, the market opportunities of an economic entity are the result of the competitive advantages creation, the form, quantity, and quality of which determine the scope, nature and success of the entity’s activity in its market segment and the possibility of its expanding to new markets. The need to assess competitiveness is confirmed by the qualitative and quantitative analysis of the Russian companies’ activities in the oil and gas industry. The authors applied a dynamic method for assessing the competitiveness of a leading company in the Russian gas market. Based on the results of the study, it was concluded that it is advisable to use this method, because it makes it possible to identify the main factors that influenced the level of competitiveness of the investigated object. These factors, therefore, allows us to determine the main reserves for increasing the competitiveness of the analyzed enterprise. The practical application of this study finding is possible in the field of corporate governance and strategic planning for gas companies.