Saad al-Karbalaie was shot dead after armed men forced him to stop his car as he was leaving his office in the northern Iraqi city of Kirkuk.
Gunmen have shot dead a senior oil official working for Iraq's state-run North Oil Company, police and company officials have said, Al Jazeera reported.
Karbalaie, NOC's director of operations, was killed in Kirkuk on Sunday after armed men forced him to stop his vehicle as he was leaving his office, going on to shoot him, police sources said.
There was no immediate claim of responsibility for the attack on Karbalaie, who was supervising production and export facilities in the northern oil city.
The incident follows several attacks in Baghdad on Sunday in which at least seven people were killed in a series of blasts in public places. Al Jazeera's Jane Arraf, reporting from Baghdad, said at least 19 were injured in the blasts.
