It is a metallic green with black and yellow caution stripes in the center. It lays outside of your field of view, near where Murray is found pumping the oil.
The uranium barrels have a much larger explosion than normal red barrels do. The uranium barrel's explosion is the same orange/yellow color as the red barrel's.
- Uranium barrels only appear in one mission in the entire Sly Cooper series.
- The barrel is filled with the green uranium oil.
- Uranium oil can also be seen at the end of "The Claw" mission when Murray covers himself in it.