https://www.nytimes.com/2020/02/07/world/europe/belarus-lukashenko-russia-putin.html

Putin Reject Oil Deal With Belarus, Increasing Pressure for Merger

A meeting with President Vladimir V. Putin of Russia and President Alexsandr G Lukashenko of Belarus where they discussed Russia providing cut-rate oil supplies for Belarus' failing economy. Russia has rejected the plea and instead plan to untied the two countries making Belarus a union state. Russia has since stoped selling oil to Belarus and they have since bought oil from Norway.  Belarus is a country to the north of Russia, to the south of Lithuania, to the east of Poland, and to the west of Ukraine. Since Belarus was a former Soviet land and fear an repture from Russia. Geographically Belarus is right next to Russia and is dependent on Russian oil supplies which doesn't put them in the best of places.