Timur-Vasile Chis had previously served as head of the Project Evaluation and Monitoring Division within Conpet.
Dan-Silviu Baciu has been general manager of the company since December 2017.
The Board of Directors also appointed Sanda Toader to the position of economic manager economic, effective November 7, for a four-year period.
Conpet is 58.71% owned by the Romanian state. Conpet has a market capitalization of RON735 million after its shares have decreased by 14% this year on the Bucharest Stock Exchange.
Conpet reported a turnover of RON184 million in January-June 2018, down 0.7% on the year, and a net profit of RON21.6 million, down 39% on the year.