What happened to all that deepwater crude gusher oil, so visible from space, spreading like a magical sheen on the surface of the waters in the Gulf of Mexico ?
It’s now lying as a 5cm layer of gunk on the sea floor, that’s what. That’s where you’ll find Ground Zero for BP’s careless “blame the cement” spill mess-tastrophe :-
https://www.desdemonadespair.net/2010/09/oil-layers-two-inches-thick-coat-gulf.html
If ever there were an advertisement for the campaigns to end the age of fossil fuels, this, I think, is it.