Industry sources say Kuwait's crude oil production rose to 1.6 million barrels per day on Wednesday, one day after Kuwaiti oil workers ended a three-day strike. It's estimated that Kuwait's production will return to its normal level of 3 million barrels per day in about four days.  

Meanwhile, brent crude futures fell to around 43 U.S. dollars a barrel on Wednesday from Tuesday's close of 44 U.S. dollars. U.S. crude declined to around 41.5 U.S. dollars per barrel from Tuesday's close of 42.5 U.S. dollars. 

The Kuwait Oil Company was forced to cut output to as little as 1.1 million barrels per day (bpd) because of the strike.