World oil production was 79.984 million barrels per day in 2009, a decrease of -2.6% from the previous year. Total world oil output in this note is summed from four major producing zones chosen because of the markedly different circumstances pertaining in each. An area plot shows production from the OPEC group of nations, the U.S.A., Eastern Europe/CIS (but not including new members of the expanded European Union), and the remainder termed Rest-of-World. After a long period of steady increases before 2004, R-O-W production fell 376,000 barrels per day in 2009 from the previous year. The share of the R-O-W group in world production also fell regularly to 32.79% in 2009 from the high of 37.43% reached in 2002. R-O- W production is also plotted separately versus OPEC production in a second graph for additional clarity.

The per capita consumption of oil and total primary energy were calculated for the world from 1965-2009 using data derived from the BP Statistical Review of World Energy and the World Factbook of the Central Intelligence Agency of the U.S.A. Per capita world oil consumption has remained remarkably constant at an average 4.54 barrels per capita (Standard Deviation = 0.10) for the 27 years inclusive from 1983-2009. Canadian per capita oil consumption of Canada of 23.75 barrels per capita in 2009 was also compared with that of India (1.00 barrels per capita): the value of the Canada-to-India ratio of 23.8 may be decreasing again after stabilizing following a period of steep decline which lasted until 2000.