Flaming Oil

Flaming oil is a simple incendiary weapon used on Britannia, which functions somewhat similarly to a contemporary Terran Molotov cocktail. Flasks of this substance appear in Ultima IV, V, VI, and VII.

While oil flasks did appear in Ultima IX, they could not be lit and thrown. However, archers with sufficient training can coat their arrow tips with the oil and lit them for create flaming arrows for added damage.

Description
Flasks of flaming oil create a sudden conflagration upon impact, resulting in a fiery field which may block the advance of an enemy. Volatile and unreliable in its effects, this substance was generally used as a weapon of last resort by those desperate to escape a battle with their lives, and it fell out of use toward the late Age of Armageddon.

Trivia

 * In Ultima IV, enemies killed with flaming oil did not grant experience points.