Russia and Belarus have come closer to resolving their differences on oil and gas supplies, Russia’s economy minister said on Saturday after talks between the two countries.

Axar.az reports citing Reuters.

Russian President Vladimir Putin and his Belarusian counterpart Alexander Lukashenko were holding talks on Saturday on an integration road map in the southern Russian city of Sochi.

A lack of detail on what such a pact might include has fueled fears that Moscow aims to gain new influence in ex-Soviet Belarus as part of a plan to absorb it.

“A lot of progress has been made, even on oil and gas. The positions have come significantly closer,” Russian Economy Minister Maxim Oreshkin said, without providing any detail.

Oreshkin added that the two presidents would meet again in St. Petersburg on Dec. 20.

Lukashenko, who did not address the press after the talks, last month threatened not to sign an integration deal with Russia if it failed to resolve “oil and gas issues”.

Russia has provided energy subsidies to Belarus in the form of cheap oil and gas and low-cost loans to keep Minsk in its political orbit, but now plans to phase these out to lessen the burden on its economy.