I was surprised to recently read that there are bacteria and archea living inside oil wells. https://www.slb.com/~/media/Files/resources/oilfield_review/ors89/

I was surprised to recently read that there are bacteria and archea living inside oil wells. https://www.slb.com/~/media/Files/resources/oilfield_review/ors89/jan89/4_bacteria.pdf https://www.slb.com/~/media/Files/resources/oilfield_review/...