However, there was still some oil residue to be found.

A greenish slime, made of oil residue, floats on the top.

Afterwards, the tools are sandblasted to remove oil residue from the surface prior to grinding and painting.

The plant would run by mixing an oil residue, petroleum coke, in a chamber with steam and a controlled amount of oxygen.

I think the pet smells are manageable, but what can I do about the oil residue?

The Rock Island did not maintain the train properly; the cause of the file was oil residue which poor maintenance failed to remove.

First soak up any liquid oil residues with a paper towel.

Some experts, relying mostly on laboratory testing, had even declared that corals were not affected by oil residues.

The principal theory holds that the cause could have been explosions caused by oil residue in the cargo compartments.

The sands are completely dry, with no oil residue whatsoever.