Duke Energy Corp (DUK)

[Timothy Smith]

Duke is the largest electric utility in the nation with 7.3 million electric customers in Indiana, Florida, Kentucky, Ohio, and the Carolinas.

It's interesting to note that both of these companies are key partners in the build-out of the $5 billion Atlantic Coast Pipeline.

Dominion Resources and AGL Resources are involved in the project as well.

The pipeline would carry natural gas from fracking operation in the Marcellus Shale in West Virginia. Duke would use it to help power customers' home and businesses.