Crude oil is stored in limestone cave and under limestone strata under the sea because it is acidic and its acidity has to be neutralized before it can be process further. Without neutralizing its acidity, petroleum products derived from it create green colored smog when burnt.
In part, crude oil acquires its acidity when it is treated with chemicals to kill all micro-organisms in it when it is first extracted.
Oil slick from oil spills is sometime believed to have curative power. I remember a place by the sea where dirt was used to cover an oil spill that flooded a small inlet. The dirt was thick enough to stand on and the "land" heaved and abated when you stand on it. That place provided a kind of black mud (I believe in retrospect to be crude oil from an oil spill) that "cured" many skin diseases.
Some even drink a suspension of the black mud in soapy water.
Barefoot doctors indeed, but if you are interested in alien germs then maybe you are also interested in alien cures. What was used to treat crude oil that imbue it with curative power?
What chemicals/additives/medications made crude oil safe to handle in the first place?
Good night.
