Oil falls 2% from highest in almost 3 weeks, focus on Russian supply risks

Oil prices fell by about 2% on Tuesday a day after surging nearly 2%, as investors watched developments in the war in Ukraineand assessed potential disruption to Russian fuel supplies.

Brent crude was down $1.28, or 1.9%, at $67.52 a barrel by 11:19 a.m. EDT, a day after hitting its highest since early August. West Texas Intermediate (WTI) crude lost $1.30, or about 2%, to $63.50.

"Front and center in this week’s trade is the possibility that U.S. tariffs on India could be doubled to 50% as early as tomorrow in further restricting Russian export flows that are already being inhibited by recent Ukrainian attacks on Russian oil refineries," analysts at energy advisory firm Ritterbusch and Associates said in a note.

India is the third-largest buyer of Russian crude. Indian exports could face U.S. duties of up to 50% - among the highest imposed by Washington.

Oil's rally on Monday was primarily driven by supply risks after Ukraine strikes on Russian energy infrastructure and the possibility of further U.S. sanctions on Russian oil.

Ukraine's attacks in response to Russia's advances in the conflict and its pounding of Ukrainian gas and power facilities have disrupted Moscow's oil processing and exports and created gasoline shortages in some parts of Russia.

Russia has revised up its crude oil export plan from western ports by 200,000 barrels per day (bpd) in August from the initial schedule after Ukrainian drone attacks disrupted refinery operations and freed up more crude for shipment, three people familiar with the matter said.