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- 21:06, 18 April 2026 Verda.Majo talk contribs created page Petroleum (Created page with "'''Petroleum''', also known as '''crude oil''' or simply '''oil''' in its liquid state, is a substance formed by the decomposition of organic material over time. While referred to as crude oil in its liquid form, broader definitions of petroleum can also refer to natural gas or bitumen.<ref>{{Citation|year=1990|title=Petroleum fundamentals glossary|title-url=https://archive.org/details/petroleumfundame0000unse/page/19/mode/1up|publisher=The University of Texas at...") Tag: Visual edit