While some countries like Germany, where nearly half the homes rely on gas for heating, are more exposed than others, the European Union is seeking to band together.

Brent rose 45 cents, or 0.4%, to $101.67 a barrel, WTI was up 32 cents, or 0.3%, at $95.21 a barrel.

The EU’s sixth round of sanctions over the invasion of Ukraine includes a ban on Russian oil, as well as the use by third countries of the bloc’s companies for insurance and financial services.

Brent gained 42 cents, or 0.4%, to $96.90 a barrel, WTI rose 40 cents, or 0.4%, to $90.76 a barrel.

Brent fell $1.60, or 1.6%, to $95.12 a barrel, WTI were down $1.56, or 1.7%, at $89.21 a barrel.

Brent fell 36 cents, or 0.4%, to $96.23 a barrel, WTI was at $90.29 a barrel, down 21 cents.

Russia's crude exports rose by 140,000 b/d on the month to average 3.36 million b/d from Aug 1-16 to remain above pre-war levels for the fifth month in a row,

Brent fell 84 cents, or 0.9%, to $94.26 a barrel, WTI dipped 45 cents, or 0.5%, to $88.96 a barrel.

Brent fell $1.14, or 1.2%, to $97.01 a barrel, WTI was at $91.03 a barrel, down $1.06, or 1.2%.

When Russia invaded Ukraine in March, things went from tightness of supply to impending disaster. Russia, through a complex network of pipelines, is the principal supplier of natural gas to Europe and all petroleum products to Germany. Now it has curtailed normal flows.