Indian refiners Mangalore Refinery and Petrochemical Ltd (MRPL) and Bharat Petroleum Corp Ltd (BPCL) issued tenders this week seeking crude oil, trade sources said on Tuesday, after harsher U.S. sanctions disrupted Russian supply.

On Jan. 10 the US Treasury’s Office of Foreign Assets Control sanctioned 161 tankers and traders involved in about 2,000 shipments since the invasion began. It also acted against Moscow-based ship insurers and two companies — Surgutneftgas and Gazpromneft — which in the first 10 months of last year accounted for almost 30% of Russia’s oil exports.

Crude oil purchases by Indian Oil Corp. may shift as the new US sanctions on Russia affect supplies from Moscow, pushing the South Asian country’s biggest refiner to seek alternatives.

Ukraine claimed Saturday to have struck one of Russia’s largest oil refineries in a drone attack, starting a fire at the facility more than 700 miles into Russian territory.

Liskynska oil depot (Voronezh Oblast, Russia) – hit for the second time in a week, as Ukraine’s Defense Forces first targeted the facility on Jan. 17, causing significant damage. The facility, owned by Rosneft,