Sounds like bad management more than depletion?
....
Economists say Uzbek oil production is falling by about 20% a year, so the current deficit can only get worse.
Uzbekistan needs to import oil, but the government cannot afford to, especially at current high world prices, and will not admit it needs to.
Private businessmen rarely speak publicly to avoid government reprisals.
But increasingly, they say the only solution is to end the government monopoly where the authorities set petrol prices, control distribution and restrict imports.
http://news.bbc.co.uk/2/hi/asia-pacific/4424476.stm