Alta Resources, LLC has drawn interest from potential buyers including EQT Corporation (NYSE:EQT) and Chesapeake Energy Corp.(NYSE:CHK), according to people familiar with the matter. EQT and Chesapeake are weighing offers for Alta that could value the company at more than $3 billion, said the people, who asked to not be identified because the matter is private. Alta, whose backers include The Blackstone Group Inc. (NYSE:BX)'s credit arm, is working with an adviser on a potential sale, the people said.

Representatives for EQT, Chesapeake and Blackstone declined to comment. Representatives for Alta didn't respond to requests for comment.