Kuwait's finance ministry has said the country has posted a preliminary budget surplus of KD8.3bn ($28.7bn) in the 11 months through February, Bloomberg has reported. Revenue climbed 98% more than forecast for the fiscal year through March to KD16bn, while spending was KD7.7bn, compared with KD12.1bn projected for the year. Oil revenue was KD15.2bn in the period and non-oil revenue KD847.6m, data from the ministry showed.