A Chatham House report on the hidden Oil crisis in Saudi Arabia due to high domestic demand. From the Summary:
Domestic energy demand growth in Saudi Arabia is cause for international concern. If it continues at the current rate, it could jeopardize the country's ability to stabilize world oil markets.
Given Saudi Arabia's level of dependence on oil revenues, excessive consumption will cause economic and social pressures long before oil exports end – within a decade if nothing changes.
Current policies are not enough. Planned additions of renewable power supply would help maintain the fiscal balance for an additional two to three years; given the lead times nuclear power would have little or no impact.