The world's fourth-largest oil exporter and OPEC member is seen booking the largest fiscal surplus in the Gulf this year as oil prices stay well above its budget assumption of $43 a barrel.
Kuwait had assumed crude, the main revenue earner, would fetch $35 a barrel in the year to end-March 2010. Benchmark US crude traded above $70 a barrel on Monday.
The preliminary data on Monday also showed budget spending in 2009/10 came in at 9.75 billion dinars compared with a planned 12.12 billion.
Independent economic analyst Hajjaj BuKhadour said political disputes sometimes delay the execution of budgeted projects, which cuts actual spending.
"... because of disputes between parliament and cabinet, development is hindered and many projects are delayed," he said.
The report did not say when final figures were expected. Some ministries are often late reporting actual spending.
Kuwait originally forecast the deficit at 4.86 billion dinars. Revenues reached 17.92 billion dinars in the year to March 31, compared with 8.07 billion planned, according to data posted on the Finance Ministry's website.
Oil revenues were 16.85 billion dinars, up from the original plan of 6.92 billion.
The Gulf state invests 10 percent of its revenues in a fund for future generations, which is managed by the OPEC producer's sovereign wealth fund. After the payment, the budget surplus amounted to 6.39 billion dinars, according to the data.
Kuwait posted a surplus of 2.74 billion dinars in the fiscal year of 2008/09. It forecasts a deficit of 7.41 billion dinars in its current 2010/11 budget, which has not been passed by parliament yet.
