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Russian pranksters target Polish foreign minister in hoax call about Ukraine

Kremlin says Europe will pay more unless Ukraine extends gas transit deal

Russia fighting intense battles against major Ukrainian incursion

Ukraine PM says Lukoil sanctions do not threaten Slovakia's energy security

Fires in Canada's Jasper town coming under control, say authorities

Factbox-Slovakia, Hungary threaten Ukraine with court fight over blocked oil

Slovak PM blasts Ukraine's Lukoil sanctions as oil flow stops

Hungary says Ukraine halting Lukoil oil transit a threat to long-term supply

Kremlin: Interruptions in Russian oil transit via Ukraine a 'crisis' for buyers

Kurdish oil smuggling to Iran flourishes

Niger junta agrees to talks to repair ties with Benin

Fire at Alberta gas metering station prompts temporary highway closure

Blaze put out at Russian oil reservoir after Ukrainian drone strike, agencies report