Monitoring the company's operations is extremely important for the company's management, but also for investors who want to invest in the company. Business can be monitored by analyzing the underlying reports. Data from financial statements are most often analyzed by vertical and horizontal analysis, and analysis of financial indicators. The aim of this paper is to investigate and present the changes in INA’s notation by statistical analysis of the most important items in the financial statements. The theoretical part of the paper contains basic financial reports and data crucial for monitoring the company’s operations. In the empirical part of the paper the business of INA d.d. has been analyzed in the period from 2014. to 2019. We can conclude from the analysis that the company INA d.d. operates profitably. The company achieved a net operating profit of HRK 489,000,000, which is 58,45% less than in 2018. In 2014. And 2015, the company operated at a loss, while in other years it operated at a profit. The profit in relation to revenue recorded the highest percentage in 2017. (6,27%), while the lowest percentage was recorded in 2014. (-7,68%) when the company was operating at a loss. We can conclude that the company operates profitably. Spreman’s correlation coefficient shows that there is a presence of positive, strong and statistically significant correlations the price of fuel on the international market and income.