The source said LUKOIL, Russia's second-biggest oil producer after Rosneft (ROSN.MM), plans to boost shipments to 1.145 million tonnes this month after they fell to 980,500 tonnes in June from 1.17 million tonnes in May.
LUKOIL, in which U.S. oil giant ConocoPhillips has a 20 percent stake, processes more than 35 million tonnes of crude oil per year at its four domestic refineries.
Vysotsk, which is supplied by rail, gets around 600,000 tonnes of fuel oil every year by small river tankers during summer navigation lasting from May to November.
These volumes are transported from LUKOIL's Volga region refineries to Baltic sea via the Volgobalt system of canals and the river of Neva.
"The outlet will get 80,000 tonnes of fuel oil via river in July after 94,400 tonnes in June from LUKOIL's refineries on Volga," the source said.
Following are details of Vysotsk's oil products exports. Forecasts and results were given by the industry source (in thousands of tonnes):
May June July (forecast)
Vacuum gas 331,500 317,000 320,000
Diesel 452,800 368,000 410,000
Fuel oil 385,000 295,500 415,000
Total 1,169,300 980,500 1,145,000