Reuters: Petty legal filings. Diversionary ballot measures. Counting abstentions as no votes. These are just some of the tactics U.S. oil companies used this spring to quash efforts by investors to win the right to nominate climate experts for board seats. Led by New York City Comptroller Scott Stringer and proposed at 75 U.S. companies in various industries this year, the so-called proxy access measure would give investor groups who own 3 percent of a company for more than three years the right to nominate...