Sadighabadi, who is also deputy petroleum minister for petroleum products and distribution affairs, issued the decree on Saturday.

The newly-appointed NIORDC chief, who took his post last month, has since then replaced the directors of a number of the company's subsidiaries.

Last week, Sadighabadi put Alireza Tahaei Nejad at the helm of the legal department of NIORDC.

He also appointing Naser Babaei as the company's deputy director.