Brent fell $1.02, or 1.2%, to $85.25 per barrel , WTI were down 97 cents, or 1.2%, at $77.53 per barrel.

Naftogaz and Gazprom signed in December 2019 a gas transit agreement under ship-or-pay terms, meaning Gazprom is obliged to pay for transit whether it uses it or not.

Brent was up $1.49, or 1.8%, to $85.55 a barrel, WTI was up $1.37, or 1.8%, at $78.08.

Brent were up 70 cents, or 0.78%, to $90.53, WTI was up 71 cents, or 86%, at $83.65.

Brent rose $2.28, or 2.5%, to $92.90 a barrel, WTI was at $86.16 a barrel, up$2.22, or 2.6%.

Benchmark futures jumped as much as 10% for a second day of gains. In the latest move to ensure supply, Germany said it will nationalize Uniper SE and avert a collapse of the energy sector with winter just days away.

G7 countries have also agreed to finalize a price cap for Russian crude. The US Treasury has indicated that three separate price caps will be introduced -- for crude, high-value refined products and low-value refined products.

Brent fell $1.17, or 1.3%, to $90.18, WTI dropped $1.14, or 1.3%, to $83.97.

Benchmark prices dropped as much as 8.8% on Monday, extending last week’s decline. Germany, the U.K. and others plan to spend billions to ease their reliance on Russian imports, rescue local energy companies, and cap prices to alleviate pressures on businesses and households.

Brent were up $1.04, or 1.1%, at $91.88 a barrel, WTI gained 69 cents, or 0.8%, to $85.79, down 1.2% this week.