WSJ News Exclusive Business The oil and gas giant has held informal early-stage talks to buy Pioneer Natural Resources, with a market capitalization of $49 billion. Share this:FacebookX Related Post navigation Exxon Mobil studies potential mega deal with Pioneer Natural Resources – WSJ (NYSE:XOM) BTC, ETH, BNB, XRP, ADA, DOGE, MATIC, SOL, DOT, LTC By Cointelegraph