10The third angel sounded his trumpet, and a great star, blazing like a torch, fell from the sky on a third of the rivers and on the springs of water— 11the name of the star is Wormwood (as in, Bitter). A third of the waters turned bitter, and many people died from the waters that had become bitter.
Only thing is unless the sea is the sky and we didn’t know it, that great star would come from the ocean.
Well, is oil bitter? Then again I guess it’s all about how literal you want to be.