From D&D Wiki
|This material is published under the OGL|
A pint of oil burns for 6 hours in a lantern. Use a flask of oil as a grenadelike weapon. Use the rules for alchemist's fire, except that it takes a full-round action to prepare a flask with a fuse. Once it is thrown, there is only a 50% chance that the flask ignites successfully.
A pint of oil poured on the ground covers an area 5 feet square (provided the surface is smooth). If lit, the oil burns for 2 rounds and deals 1d3 points of damage to each creature in the area.