Ammon News - Oil prices edged up on Tuesday after rising in the previous session, as market participants contemplated potential supply disruption from Russia after Ukrainian drone attacks on its refineries.

Brent crude futures edged up 15 cents to $67.59 a barrel by 0354 GMT while U.S. West Texas Intermediate crude was at $63.45, also up 15 cents. On Monday, Brent settled up 45 cents at $67.44 while WTI settled 61 cents higher at $63.30.

Ukraine has intensified attacks on Russia's energy infrastructure in an attempt to impair Moscow's war capability, as talks to end their conflict have stalled.

The U.S. dollar index, which measures the greenback's strength against six peers, slipped to a nearly one-week low. A weaker dollar makes oil less expensive for holders of other currencies.

Markets were also factoring in expectations of crude inventory declines in the U.S. last week, with official data expected on Wednesday at 1430 GMT.

U.S. crude inventories are forecast to fall 6.4 million barrels for the week ended September 12, following a 3.9 million build a week earlier, energy strategist Walt Chancellor at Macquarie Group said in a client note.

Reuters