ConocoPhillips to buy Marathon Oil for $22.5 billion in latest energy merger
(Reuters) -ConocoPhillips on Wednesday agreed to buy Marathon Oil in a $22.5 billion all-stock deal, the latest in a series of mega-deals in the oil and gas industry as companies look to bolster reserves. The U.S. oil and gas industry has been riding a consolidation wave over the last two years. Last year was one…