[Philo-Junius]

I believe your chart includes spills of refined products by boaters and so forth. If you just look at production and transport, the natural seeps overwhelm everything else.

[chiller]

Fossil fuels my ass. There weren’t THAT many decompsed dinos or trees. The earth’s core could be the only source for so much oil

Next to inexhaustible.

[thackney]

I believe your chart includes spills of refined products by boaters and so forth.

Yes it does. It includes spills on land at a gas station filling station that eventually get washed into the water if not captured. It is a total source of all petroleum that ends up in the waters.