Shell's better-than-expected integrated gas production guidance triggers a sense of relief among investors, AJ Bell's Dan Coatsworth writes. The second-quarter update is only a teaser designed to guide the market, he adds. Shell lifted its output estimate slightly to between 610,000 and 650,000 barrels of oil-equivalent a day due to strong production at assets outside of the Middle East. It had previously guided for 580,000 to 640,000 BOE a day. The unit produced 909,000 BOE a day in the first quarter. Shares rise 2.5% to 2,985.50 pence. (adam.whittaker@wsj.com)