NEW YORK/HOUSTON, Oct 11 (Reuters) – Exxon Mobil (XOM.N) agreed to buy U.S. rival Pioneer Natural Resources (PXD.N) in an all-stock deal valued at $59.5 billion that would make it the biggest produce… [+5135 chars]Read More
Exxon secures lead in top US oilfield with 60 billion buy of shale rival Pioneer Reuters
