A natural gas drilling rig in Fairfield Township, Pennsylvania. The area sits above the Marcellus Shale where the search for natural gas uses a controversial method known as hydrofracking.

At least for the moment, New York and California aren't part of the U.S. shale explosion. Yet according to a new study, they may reap the benefits nonetheless.

The American Petroleum Institute, an oil and gas industry group that favors fracking, released on Thursday a state-by-state analysis detailing how plentiful natural gas supplies could help create millions of direct and indirect jobs across the country. Interestingly, some of those jobs may appear in unlikely states that are not active participants in the shale boom.