Compressed gas Whether it is sold as an energy source or a petroleum product used to power engines, compressed natural gas is considered as the fuel of the future because of its environment-friendly features. CNG is manufactured at the newly-constructed NIS plant at the Palić oil and gas field. The procedure of compressing natural gas under high pressure and loading it into special vehicles with batteries of cylinders is technically safe owing to tailor-made compressors. CNG stands for compressed natural gas, i.e. one of the forms that natural gas is transformed into for the purposes of easier transportation and storage. Its main ingredient is methane, which has the smallest CО₂ emission coefficient value per unit of released energy, as compared against other petroleum products, and as such contributes towards improvement of air quality. It is used as an industry and household heating fuel, as well as an engine fuel for internal combustion engines. It is regarded as the fuel of the future, because of its environment-friendly properties and excellent performances provided to the vehicles, and also because of its cost-effectiveness. In addition, compressed natural gas enables an easier start-up and better performances of the engine. NIS is the first large petrol station network in the country to include compressed natural gas in its product range, thus confirming once again its position of the leader in innovations on the market of Serbia and the region. NIS continues to develop this activity further, planning to make this type of energy-generating product available to its customers at around 20 locations throughout Serbia by end of 2020. NIS Petrol filling station “Novi Sad 10” is the first retail unit of this product. In July 2016, NIS has started selling the CNG at the NIS Petrol station “Čačak 1” as well. NIS intends to extend this activity, so its plan is to develop retail of CNG at 20 filling stations in Serbia by 2020.