Under an international energy assistance program, Russia is to supply a total 100,000 metric tons of heating oil to North Korea in exchange for a pledge to abandon its nuclear program.
"Russia is currently completing the third shipment of 50,000 tons of heating oil to North Korea. In the next several months we will be able to deliver the remaining 50,000 tons," Alexei Borodavkin said.
Four days of international negotiations in Beijing on North Korea's denuclearization process ended on Wednesday with no deal reached.
The six countries - the two Koreas, the U.S., China, Russia and Japan - discussed a Chinese-drafted verification protocol on means of probing North Korea's past nuclear activities.
Currently, the main stumbling block in the negotiations, which have been ongoing since 2003, is the U.S. demand for nuclear inspectors to be able to take samples from North Korean facilities out of the country for analysis.
The negotiations have been complicated by North Korea's refusal to acknowledge Japan as a participant over Tokyo's failure to meet its obligations under a 2007 six-party agreement to provide fuel aid to Pyongyang in exchange for the dismantling of North Korean nuclear facilities and disclosure of all information on past nuclear activities.
