What is the residue left from setting a black puddle on fire ?

Résumé éditeur

"I don't know when my obsession with black puddles started but here's a list of its requirements: First of all, it has to look like oil, petroleum, pitch black, so the sun can prettily reflect off of it and look like the moon in the pitch black sky Bonus point if the oil is moving, like a bit of a wind as a paid actor, so the moon can show off all of her different sides you know Second of all, in imagination land, the sun, its heat, could set the black puddle on fire cause it's oil, and oil is highly inflammable, that's a known fact Its shape? it doesn't matter! You cannot control a puddle's form, that's against the law of attraction, everybody knows that ..."