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Credit rating Agency Standard & Poor's said that GCC countries need to raise around $300 billion between 2018 and 2021, the majority of demand coming from Saudi Arabia.
Saudi Arabia has become the world's leading source of international debt, borrowing $52 billion through a mix of conventional and Islamic international bonds since it entered global markets for the first time in late 2016.
Standard & Poor's expects the collection of 70 percent of the $300 billion needed by countries in the region through debt and the remaining 30 percent from assets. Qatar and Bahrain are expected to collect their funding needs through debt almost exclusively while Kuwait and Abu Dhabi will rely more on their assets.
Standard & Poor's estimates that the total deficit of the Gulf Arab Governments will reach about $75 billion next years, up from $ 190 billion in 2016.

Source (CNBC Arabic site, Edited)