Endeavor Energy Partners is exploring a sale that could value the largest privately-held oil and gas producer in the Permian basin of the United States at between $25 billion and $30 billion, according to people familiar with the matter. The sale would come almost 45 years after Texas oilman Autry Stephens started the company that would become Endeavor. Stephens has asked JPMorgan Chase bankers to prepare to launch a sale process for Endeavor in the first quarter of 2024, the sources said, cautioning no transaction is certain and asking not to be identified because the deliberations are conf...