Protests ceased after Anas al-Saleh,the oil minister of Kuwait refused to negotiate with employees while they were on strike. The strike lasted 3 days and resulted in the county’s crude production dropping by almost 50%. Workers were protesting potential wage and benefit cuts as well as layoffs. These anticipated concessions are fueled by the Kuwait government's takeover of public sector payrolls.
See "Kuwait oil, gas workers end 3-day strike", CNBC, April 20, 2016