July 7 (Reuters) - U.S. oil and gas major Exxon Mobil XOM.N warned in a regulatory filing on Monday that changes in oil prices would lower its second-quarter upstream earnings by $800 million to $1.2 billion.
Exxon had posted $6.8 billion in upstream earnings for the first quarter. Its total profit in that quarter was $7.71 billion.
(Reporting by Arunima Kumar in Bengaluru; Editing by Pooja Desai)
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