The size of the oil spill, leaked out of this well, is 2.5 km on 10 metres. The well is pressured by temporary gap-closure, OilCapital reported. Oil spill from oil well #1 in the Caspian Sea was discovered in May, 14. The oil field was dumped more than 10 years ago, when the level of the Caspian Sea was increasing. There was no time for final conservation of the oil well. Nowadays the well stands for potential environmental risk.