After the take-over of railway transport in the above mentioned locations the name of the company was changed to ORLEN UNIPETROL DOPRAVA a.s. At that time the company managed approx. 3 thousand carriages out of which 1 thousand carriages of its own.

An important milestone was 2004, when the company started to organize transport with its own trains. In this country it was the case of the transfer of semi-finished products between the Litvínov and Kralupy nad Vltavou sidings. The first export transport was realized on the Rumburk - Ebersbach route in the same year. Gradually, the percentage of transports with the use of the company's own trains increased, mainly in the sphere of transport of chemical products between individual locations of the ORLEN Unipetrol Group.

After the sale of the ORLEN Unipetrol Group to the Polish Orlen S.A. Group within synergic effects the volume of technological transport between Poland and the Czech Republic increased. In 2007, the legal status of the company was changed from an incorporated to a limited company, one of the principal railway forwarders in the Czech Republic.

The company thus became one of the main rail transport operators in the Czech Republic. In October 2025, 100% of the shares in ORLEN Unipetrol Doprava were acquired by ORLEN Kolej, and the company thus became part of the logistics services of the ORLEN S.A. group. ORLEN Kolej operates in Poland and Germany, cooperates with business partners throughout Europe, and provides comprehensive services in the field of international rail transport. Following the acquisition of ORLEN Unipetrol Doprava, ORLEN Kolej will operate more than 200 locomotives and transport approximately 20 million tons of cargo annually.