The Ukrainian energy system ... of Russia and Ukraine and will be in the standalone mode in recent days to test the system for future connection to the European network of power transmission ...

Ukrainian drones hit a fuel and energy facility in the Russian region of Kaluga, a source in Ukrainian military intelligence ...

If the deal goes through, Russia will effectively continue supplying gas to the EU disguised as Azerbaijani. Russia continues to transport its resources through Ukraine's gas transmission system, ...

(Reuters) - Oil prices rose on Friday after Russia said it had fired a ballistic missile at Ukraine and warned of a broadening conflict, raising the prospect of tightening crude supplies.

HOUSTON (Reuters) - Oil climbed nearly 2% on Thursday as tensions between Russia and Ukraine were rapidly rising as the countries launched missiles at each other, worrying markets about crude supply ...

Oil futures climbed more than 3% on ... The decision to allow Ukraine to use the Army Tactical Missile System, or ATACMS, for attacks into Russia comes as thousands of North Korean troops have ...

NEW YORK (Reuters) -Oil prices climbed ... its largest airstrike on Ukraine in almost three months on Sunday, causing severe damage to the country's power system. Brent and WTI fell more than ...