BAGHDAD (Reuters) -A drone attack targeted an oilfield operated by Norwegian oil and gas firm DNO in Tawke, in the Zakho Administration area of northern Iraq, on Thursday, the Kurdistan region's counter-terrorism service said. The attack is the second on the DNO-operated field since a wave of drone attacks began early this week.

Drone attacks for a third day on oilfields in Iraq's semi-autonomous Kurdistan region have slashed crude output by 140,000 to 150,000 barrels per day, two energy officials said on Wednesday, as infrastructure damage forced multiple shutdowns.

The US on Wednesday condemned drone attacks on oil fields in the Iraqi Kurdish region. "The United States strongly condemns the drone attacks that have been targeting oil fields in the Iraqi Kurdistan Region since July 14,