Fossil Fuel Production and Use: Lots of Fun With Charts

This chart is a combination of three that I posted previously which give an overview of which countries produce and consume the most coal, oil and natural gas.

To make the above chart, I had to convert the coal, oil and gas numbers--which were denominated in short tons, barrels per day, and cubic feet--into the common unit of BTUs (British Thermal Units).  Arriving at the conversion factors can be a fairly technical exercise, of which there is good discussion here: http://www.aps.org/policy/reports/popa-reports/energy/units.cfm

I used the following factors, which were suggested as averages:
Oil: 1 barrel = 5.8 MBtu
Coal: 1 short ton =  25.2 MBtu
Natural Gas: 1 cubic foot = 1000 Btu