Brent crude rose 2.57% on the day to above $88 a barrel, while WTI crude futures climbed 2.33% to above $83, according to Bitget market data cited by BlockBeats on Aug. 27. The gains came as three people close to the Kremlin said Russia was preparing to intensify military strikes after concluding that negotiations over a peace agreement had reached an impasse. Sources said Moscow was considering heavier conventional ballistic-missile attacks on infrastructure in Kyiv and other Ukrainian cities. They said the negotiating frameworks had effectively collapsed, returning the two sides to their starting point, and that Putin would not end the war because of sanctions-related economic pressure or Ukraine's attacks on Russian refineries and logistics networks. Moscow is increasingly viewing Ukraine's airstrikes as attacks by NATO (North Atlantic Treaty Organization) countries because NATO members provide Kyiv with weapons and intelligence. The sources said hostilities had not yet reached their peak of military escalation.