The second-largest US oil producer Chevron in the second quarter increased its net profit to 3 billion 410 million dollars from 1 billion 450 million dollars for the same period last year. Earnings per share were 1 dollar 78 cents, falling short of the analysts' forecasts of 2 dollars 9 cents per share. Revenue increased to 42 billion 240 million dollars from 34 billion 480 million, while the experts had predicted 45 billion 650 million dollars. Last quarter, Chevron increased oil and gas production to 2 million 830 thousand oil equivalent. In the field of exploration and production, its profit rose to 3 billion 300 thousand dollars from 853 million dollars a year earlier.