Not a lot of info has been disclosed about the selloff of the privately held Texas oil company Endeavor Energy, considering that at this point it is considered confidential info. Unofficially, Chevron and Exxon Mobil are going to put in a bid. If Chevron wins the bid and acquires Endeavor Energy, it would gain the drilling rights on 329,000 net acres of assets in the Permian, of which only 2% is developed.
https://www.bloomberg.com/news/articles/2018-11-12/chevron-exxon-mobil-are-said-to-weigh-bids-for-endeavor-energy