In 2002, he completed postgraduate studies at the Institute of world economy and international relations at the National Academy of Sciences of Ukraine.

[1] Since June 2015, Olexandr Romanyuk was appointed the First Deputy Chairman of the management board – the executive director of Ukrgasvydobuvannya JSC.

[7][8][9] On February 26–28, 2019, within the framework of the Ukrainian Energy Forum, Olexandr Romanyuk spoke about the work UkrGasVydobuvannya performed on the existing fields.

[1] During the Ukrainian Energy Forum on July 14–16, 2021, the Division head`s announced Naftogaz has started research on the bottom relief in the Black Sea.

During this time, because of the full-scale was, UkrGasVydobuvannya recorded a 3% production decrease rate, – one of the lowest decline rates in the industry, having produced 12.5 billion cubic meters of Ukrainian gas in 2022[12] In March 2023, in his interview to Liga.Business edition Olexandr Romanyuk said that UkrGasVydobuvannya secretly produced gas in the occupied territories.