Natural resources comprise a component of  the environment, formed without human interferebce and  was later involved in economic turnover. The problem of natural resources assessment is rather topical sincethey are involved in economic circulation, and, like any product, they shouldbe evaluated. Proper assessment of natural resources, on the one hand, provides  equal economic opportunities for businesses operating underdifferent conditions, and, on the other hand, it will ensure the creation of effective incentivesinappropriatenature management.

Currently, the most common are two approaches to natural resources cost valuation. The cost approach is based on cost accounting for natural resources  economic development. The natural resources economic assessment obtained in the course of this approach application consider labor costs socially necessary for quantitative and or qualitative properties of natural wealth reproduction as well as.

The efficient approach takes into accountconsidering consumerable properties of natural resources, i.e. their ability to satisfy certain needs. Of interest is the value of the natural resources of the goods or its substitutability economic assessment.

The differential rentis next to the generally accepted criterion of economic evaluation of all types of natural resources in most researches carried out in this sphere. The rental estimation equals in the valuepertaining to national economy additional charges which can arise up in the resource exclusion from exploitation. The method of the rent estimation determination has not been  finally developed yet, also, the rent estimations and payment for resources taking into account the rent are not available.

Traditionally, the rent is considered to arise from better quality of natural resources and their location. Sometimes it is  called  excessive income or residual income from  the limited natural resources use, and itis calculated as the difference between the cost of production and general costs of their production, including depreciation of fixed assets and return on equity. This figure valuesthe economic profit rather than remaining rent as it does not take into account anentrepreneur income which should be included into this formula. This approach is a classic one and itis now used to assess various natural resources.

Economic evaluation of natural resources should take into account the natural resources long-term national economic results. To do this, one should evaluate all the resources on a single methodological basis and take into account the potential effects of their use as well as take into account the time factor while conducting the resource assessment.

Conducting economic valuation of natural resources should be based on accounting data and natural resources monitoring as well as on natural resource registers. In assessing the natural resourcesit is necessary to ensure an integrated approach, to take into account the role of natural resources in socio-economic development of society, their properties, excellent quality, reproduction and health conditions, the cost of their production and use, external effects, time factor and other macroeconomic and microeconomic indicators on their use. One shouldalso consider the place and value of the natural resources sector in general, human activities impact on them and the cost of environmental protection measures.

Keywords: economic evaluation of natural resources, the cost approach, effective approach, rent.