Oil major Chevron Corp ( CVX.N ) said on Tuesday it should be able to raise production as planned by between 4 and 7 percent in 2018 and buy back shares for the first time in at least three years even without a substantial rise in oil prices. The No.2 U.S. oil producer’s shares rose as much as 2 percent after Chevron cut $2 billion off the top-end of its capital spending plans and promised, cashflow permitting, to return to share buybacks for the first time since 2015. The company now expects to invest between $18 billion and $20 billion each year until 2020, compared to an earlier forecast of $17 billion to $22 billion and reassured investors paying dividends remained a top priority. Chief Executive […]