There is a lot of different ways for the identification and valuation of environmental aspects. Below described methods is used in Slovnaft refinery for several years. It approved in all segments of environment because of its complexity. The second benefit of this methods that the all of information are summarized into one document for the specific aspect – i.e. into the card of environmental aspect. Register of environmental aspects is subsequently elaborated according to this card, so it can give information to user about whole of Slovnaft refinery immediately. The aim of Slovnaft refinery is the solution to all environmental aspects, the aspects that are rated according to this method as very important, must be solved as a priority. The last review of environmental aspects in Slovnaft refinery was in October 2011. In compare with the results of last years we can clearly state that during this period reached a continual improvement in environment protection. A considerable amount of eliminated cards of environmental aspects shows evidence of this fact. Other environmental aspects are revaluated – those became less important. This reality is the result of that the MOL Group (Slovnaft is a part of MOL Group) has the basic vision to become the most respected and successful integrated oil company in East Europe. In this sense it has to be fully aware of responsible approach to health, safety, environment and community, so it wants to fulfil the obligations beyond liabilities provided by low. Budget is allocated for the realization of minor and major investment projects in variously segments of environment every year. The aim of these investments is to reduce the negative impact of the activities of the petrochemical industry. Certain environmental aspects were excluded from the register of environmental aspects because of the permanent closure of production units. The cause the shut down can be a variety of reasons.