Exxon Mobil Corp. ( NYSE:XOM ) said Thursday its second-quarter profit rose 49% to $15.9 billion. Excluding a gain of $7.5 billion for divestments and tax-related items, Exxon earned $8.4 billion in the second quarter. Total revenue rose to $127.36 billion from $125.49 billion. Analysts expected Exxon to earn $1.96 a share, according to a survey by FactSet Research.