The Oil & Gas industry is basically the largest industry worldwide, bypassing any other industry. The Oil drives the human civilization upwards (well, at least until something better is discovered and developed) and almost all modern things are somehow related to oil.
The largest Oil producers are Saudi Arabia, Russia, the United States, Iran, China, Norway, Canada, the United Arab Emirates. The largest Oil exporters are Saudi Arabia, Russia, Norway, the United Arab Emirates, while the largest oil importers are the United States, China, Australia, India.
How can I get into this industry? What Jobs are available?
People are currently in high demand within the Oil & Gas Industry. There are many positions one can consider, but for most of them, a university degree or prior similar, relevant, experience is required. For instance, if you have no engineering degree, you could get a job as a roughneck but not as a structural engineer. You should know that the Oil & Gas industry is extremely specialized and very competitive.
Information on available jobs can be found Oil and Gas Jobs Career Center.