“By 2050 most geologists will agree that most of earth's oil and gas reserves were not produced by decaying plants.”

Created by gwern on 2010-07-30; known on 2050-01-01

• gwern estimated 30% on 2010-07-30
• gwern said “http://www.longbets.org/168” on 2010-07-30
• JoshuaZ estimated 1% on 2011-05-24
• pranomostro estimated 5% on 2019-01-14
• JoshuaZ estimated 1% on 2019-01-14
• Baeboo estimated 2% on 2019-01-15