An Arab couple who have seen Kirkuk change hands several times before said they now feel safer and more comfortable.
The short suspension in production helped push up world oil prices LCOc1 as the shutdown represented more than half of total Kurdish output.
Islamic State claimed a suicide bombing which killed 41 people and wounded more than 70.
The man had left territory controlled by Isis, but was caught by Peshmerga fighters.
Peter Van Buren looks at the heightened involvement and costs of the battle against Islamic State.
Security forces killed 12 militants who tried to storm a mosque and a house close to Shujairiya.
General Martin Dempsey said it also predicted a drawn-out campaign lasting several years.
They are hoping their support backed by US-led air strikes will keep ISIS from seizing the town.
Kobani, on the border with Turkey, has been encircled by the Sunni Muslim insurgents.
