Exxon and Chevron Earnings Fall Back to Earth The Wall Street JournalExxon stock falls as earnings miss on lower natural gas prices and squeezed refining margins CNBCExxon profit drops 28%, falls short of estimates Yahoo FinanceExxon Misses Estimates on Non-Cash Charges Despite Guyana Boost BloombergExxon Mobil's stock falls after profit drops below expectations, as refining margins and natural gas prices dropped