KIEV, Oct. 14 - Prime Minister Yuriy Yekhanurov warned a reshuffle is possible among top managers of Naftogaz Ukrayiny, the state oil and gas company, for delays with clearing a natural gas debt owed to Turkmenistan.

Yekhanurov reacted to a sharp criticism from Turkmen President Separmurat Niyazov, who had Wednesday accused Ukraine of delaying clearance of about $500 mln debt for earlier gas supplies.