BANGKOK, Sept 22 (Reuters) - Thailand's top oil and gasexplorer, PTT Exploration and Production Pcl, said onMonday it has acquired 20 pct stake from Royal Dutch Shell in Brazilian offshore oil and gas concession BM-ES-23.
"The joint venture partners plan to conduct exploration andappraisal drilling during 2014-2015," the company's CEO TevinVongvanich said in a statement. (Reporting by Apornrath Phoonphongphiphat; Editing by RichardPullin)