THEORETICAL JUSTIFICATION OF DEFINITION OF THE CONCEPT "OIL AND GAS CLUSTER"
The relevance of a subject is that so far the uniform concept of essence of an oil and gas cluster, features of his designation and determination of its structure and substantial characteristics isn't created. Very small number of scientific works is devoted to a research of definition of the concept "oil and gas cluster". In the few scientific works authors give definition to the concept «oil and gas cluster», generally this concept is considered in a context «an industrial cluster» or just a cluster. The author has developed definition of the concept «oil and gas cluster» on the basis of which the structure of an oil and gas cluster necessary for formation of the engendering cluster in which the main participants (elements) - subjects of an oil and gas cluster are allocated, such as is offered: oil and gas extraction enterprises, oil and gas processing plants (cluster kernel); research and educational organizations, branch institutes; non-profit and public organizations, merging of employers, Chamber of Commerce and Industry; governmental bodies and institutions; leasing and insurance companies; transport and logistic and engineering infrastructure (objects of pipeline transport); Gas station and other enterprises for realization of oil-gazo products; supervisory board of an oil and gas cluster, buyers. The author has characterized each element entering a cluster from the point of view of what role he will play in an oil and gas cluster. The interrelation of elements with a cluster kernel representing one or several oil and gas extraction and oil processing enterprises capable to make qualitative products for needs of the region and competing in the world market is shown. Author's definition of the concept "oil and gas cluster" forms unambiguous understanding of essence of his phenomenon and structure.