@kmccune US oil production is RISING but self-sufficiency went out the window in the late 60s. You have to look at all the oil available in the world, and divide it by the number of users. At the current $100 per barrel price, a lot of oil is being discovered, but it is expensive.
With respect to “tar sands”, now called oil sands, since it’s oil in there, a colleague at university is studying the “wells to wheels” carbon generation of various oils around the world. The most carbon is generated by the sticky stuff from California. This is the same stuff Schwartzenegger condemned if it came from Canada (much cleaner), but protected when it came from the Brea tar pits.
I could send you a copy of the study, if you’re interested.
Light oil from Nigeria generates a lot of carbon because of the poor way in which it is produced, with all the associated gas being burned (flared). So, Canadian oil sands oil has a carbon footprint of 105 compared to light Nigerian oil at 100!!!
Venezuelan heavy oil comes in about the same at 105 or higher.
Believe it or not there are countries that have no oil at all, and those countries use it sparingly because it all has to be imported. Japan is a good example.
At this time, worldwide, the amount of heavier oil is starting to equal the light oil produced. Hence the ability of US refineries to be able to process all grades. More heavy oil is being found than light oil at this time. All the more reason to be frugal in its use. Making oil from coal is possible, but really messy and it generates huge amounts of carbon. The US has some of the world’s largest deposits of coal, but even Al Gore would disapprove of it being turned into gasoline for the sake of self-sufficincy. Only Germany during WW II and South Africa under Apartheid made oil from coal.
In short, the quickest way to reduce the “wells to wheels” generation of Carbon is to use less oil in the first place.
A country need not be self-sufficient in everything. Very few countries are. Almost 50% of “Florida” orange juice comes from Brazil! If it was more than 50% it could not be called Florida Orange Juice. Read the fine print on the carton or jug.
When I make coffee in the morning I don’t think about the Colombian coffee pickers, and so on.