The terminal, operated by Kazakh state energy firm KazMunaiGas , shipped 2.827 million tonnes of oil and oil products in January-October, down from 3.085 million tonnes in the same period last year, said the official, who asked not to be identified.
Shipments in October came to 308,141 tonnes, up from 368,148 tonnes in the same month last year and 292,630 tonnes in September this year.
In 2015, the terminal shipped 3.616 million tonnes of oil and oil products, down from 4.355 million in 2014.
Crude and refined oil products from Azerbaijan, Kazakhstan and Turkmenistan are shipped out of Georgia's Black Sea ports of Batumi, Supsa, Poti and the terminal in Kulevi.
Some products are shipped across the Caspian Sea in small tankers, unloaded in the Azeri port of Baku and then sent by rail to Georgian ports for export to the Mediterranean.