Oil and Alaska go hand in hand. This is because oil and natural gases are some of Alaska's biggest and most abundant resources. Oil plays a big role in how Alaska's resources are handled because of the large impact oil has on world economies. Oil is such an important worldwide industry in fact that oil levels and resources fuel industry changes, drive markets, effect politics, provide money for governments and consistently maintains itself as one of the world's leading and most important resources.
(source: http://www.alaskajobfinder.com/jobSeekers/alaska-oil-jobs.shtml)