The answer to that is crude oil extracted from pig manure, according to these resourceful and brave chemists from the National Institute of Standards and Technology (NIST).
The NIST team said they were able to analyze the chemical components of pig manure-based crude oil, which was developed by engineer Yuanhui Zhang of the University of Illinois Urbana-Champaign.
The chemical analysis could help reveal the potential processing needed to transform pig manure crude oil into fuel for vehicles or heating.
The researchers said they’re not planning a major foray into pig manure but the effort may have a payoff.
“Who knows, it might help decrease the nuisance of manure piles,” said NIST chemist Tom Bruno.