(For a Reuters live blog on U.S., UK and European stock markets, click LIVE/ or type LIVE/ in a news window) * FTSE 100 up 0.5%, FTSE 250 adds 0.3% June 2 (Reuters) - London’s FTSE 100 index edged higher on Wednesday, helped by gains in heavyweight energy and consumer staples stocks, while Bloomsbury Publishing jumped following a strong earnings update. The blue-chip index rose 0.5%, with oil majors BP and Royal Dutch Shell climbing 0.7% and 1% respectively, on higher crude prices. Large dollar-earning consumer staples companies including Reckitt Benckiser Group, Diageo and Unilever provided the biggest boost to the index. The domestically focused mid-cap FTSE 250 index advanced 0.3%, touching a record high. Bloomsbury Publishing added 5.5% as the Harry Potter publisher declared a special dividend and lifted targets for the current year, after strong book sales during lockdowns drove a 22% surge in its annual earnings. (Reporting by Devik Jain in Bengaluru; Editing by Subhranshu Sahu) Our Standards: The Thomson Reuters Trust Principles.