Exxon reportedly could buy Pioneer for $60 billion. Here’s why analysts say it’s a good deal.

Reports have again surfaced that Exxon Mobil Corp. (NYSE: XOM) is working out a deal to buy Irving, Texas-based Pioneer Natural Resources Co. (NYSE: PXD), and some analysts believe the reported $60 billion price tag is a good deal, considering Pioneer’s unique portfolio. Click through the story to find out why.