The smell of mergers and acquisitions is in the air following more than $110 billion worth of oil megadeals this month—Chevron’s agreement to buy Hess and Exxon Mobil’s deal for Permian giant Pioneer Natural Resources. Who’s next?

Deal talks are already under way. Devon Energy, another top Permian producer, is said to be eyeing targets that include Marathon Oil and CrownRock, according to a report from Bloomberg. Gas producer Chesapeake Energy is reportedly considering an acquisition of Southwestern Energy, according to Reuters.