SAN RAMON, Calif.--(BUSINESS WIRE)--Chevron Corporation (NYSE:CVX) today reported earnings of $571 million ($0.30 per share – diluted) for second quarter 2015, compared with earnings of $5.7 billion ($2.98 per share – diluted) in the 2014 second quarter. Included in the quarter were impairments of $1.96 billion and other charges of approximately $670 million relating to project suspensions and adverse tax effects, all of which were non-cash charges stemming from a downward revision in the compa