Oil slipped on signs that Iran will attend negotiations with the US in Islamabad before a ceasefire between the sides ends.
Brent dropped as much as 1.1% to $94.44 a barrel after gaining 5.6% on Monday. Iran is sending a team to the Pakistani capital, according to people familiar with the plans who declined to be identified, although it is not clear who would lead the delegation. Earlier, Tehran had said it was hesitant to participate in further peace talks with the US.
