Diamondback Energy (NASDAQ:FANG) stock rose after the oil producer said it would pay 26billionforprivatelyheldEndeavorEnergy.Thecashandstockdeal,withDiamondbackholdingamajoritystake,continuesatrendofconsolidationintheoilbusinessaroundtheheavily−frackedPermianBasinofwestTexasandNewMexico.LastfallExxonMobil(NYSE:XOM)saiditwillbuyPioneerNatural(NYSE:PXD)for64.5 billion. Then Chevron (NYSE:CVX) bought Hess (NYSE:HES), for $53 billion. FANG stock opened this mor ...