Petroleum

{
  "id": "MLC-T-OAG-002759",
  "term": "Petroleum",
  "field": "Oil and gas",
  "definition": "A naturally occurring complex mixture of hydrocarbons, found in liquid (crude oil) or gaseous (natural gas) forms within the Earth's crust. It originates from the decomposition of organic matter over geological time under specific temperature and pressure conditions. Petroleum serves as a primary energy source and a raw material for numerous chemical products.",
  "subject": "Geology",
  "url": "https://mlchart.com/terminology/oil-and-gas/petroleum/"
}