Colin J. Campbell (24 July 1931 – 13 November 2022) was a British petroleum geologist who predicted that oil production would peak by 2007. He claimed the consequences of this are uncertain but drastic, due to the world's dependency on fossil fuels for the vast majority of its energy. His theories have received wide attention but are disputed and have not significantly changed governmental energy policies at this time. To deal with declining global oil production, he proposed the Rimini protocol. Influential papers by Campbell include The Coming Oil Crisis, written with Jean Laherrère in 1998 and credited with convincing the International Energy Agency of the coming peak; and The End of Cheap Oil, published the same year in Scientific American. The Association for the Study of Peak Oil and Gas, founded by Campbell in 2000, has been gaining recognition in the recent years. The association has organised yearly international conferences since 2002. The most recent conference of the USA chapter (ASPO-USA) was at the University of Texas in Austin, TX on 30 November and 1 December 2012. Remarks The most famous peak oil petrogeologist is M. King Hubbert, who predicted in 1956 that oil production would peak in the United States between 1965 and 1970. US oil production peaked in 1970. Hubbert's theories, particularly his evaluation of oil availability in any given area reaching a peak, to be followed by inevitable and sometimes rapid decline, were expounded in his Hubbert peak theory, and became popular during the 1973 energy crisis, and during the 1979 energy crisis when even the United States Secretary of Energy, James Schlesinger announced, as he left his post that year, that 'Mid-East production is unlikely to expand much, if at all, and is unlikely to drop below current levels'. (Wall Street Journal 1979). In December 2000 Colin Campbell warned in a public lecture held at the Clausthal University of Technology that 'There is, I think, a strong danger of some ill-considered military intervention to try to secure oil. A stock market crash seems inevitable, as some investment managers are now telling us. The global market may collapse because of high transport costs and global recession. Self-sufficiency will become a priority.' Current debate Global oil discovery peaked in 1964, and since the early 1980s oil production has outpaced new discoveries. According to Campbell: There are no new potential oil fields sufficiently large to reduce this future