KEY POINTS
  • The oil rally is not justified by market fundamentals, analysts say, but fear and uncertainty will keep upward pressure on prices.
  • Oil prices are trading at four-year highs above $85 a barrel ahead of Trump's deadline for oil buyers to cut off imports from Iran.
  • Goldman Sachs and Barclays say OPEC can make up for supply shortfalls, but the market is not yet convinced.

Investment banks and hedge funds say oil prices have rallied too far too fast, but the fear and uncertainty gripping the market will keep pressure on crude futures in the coming weeks.

Brent crude hit a new four-year high of $86.74 on Wednesday, fueled by concerns about a shortfall in global supply as U.S. sanctions whittle away at Iranian crude exports. The market is just one month away from the Nov. 4 deadline that President Donald Trump set for oil buyers to stop purchasing Iran's crude.