Oil prices have hit a record high approaching $128 a barrel on speculation that China will need to import more fuel, stretching supplies.
With more energy needed to rebuild areas devastated by the earthquake this week, US light sweet crude hit $127.82 a barrel before falling to $126.29.
Prices were also supported by Goldman Sachs forecasting that oil would reach $141 a barrel later this year.
London Brent crude also rose, touching $125.82 a barrel before also slipping.
"Tight supply conditions continue to be the primary catalyst for higher crude prices," Goldman Sachs analysts said.
The bank had previously predicted that US crude would reach $107 a barrel in the second half of the year.
Earlier this month, Goldman Sachs predicted that oil could reach $200 a barrel in the not too distant future