here's a link to an article from fn arena which is pretty interesting and contains reference to the 20th century being all about gasoline and the 21st century being the age of diesel.
the article is applicable to many other stocks.
http://www.fnarena.com/index2.cfm?type=dsp_newsitem&n=D8A558D9-1871-E587-E1199C9F57D331BE