Schlumberger Ltd. is waiting for the rest of the world’s oil producers to catch up to the North American crude recovery. The world’s largest oilfield service provider sees international spending picking up in the second half of the year and into 2018, Chief Executive Officer Paal Kibsgaard told analysts and investors on an earnings conference call Friday. That will follow growth in North America, which has been adding rigs as oil prices stabilized and is forecast to see spending increase about 30 percent, he said. The promise of international growth was not enough for investors — Schlumberger fell the most in more than a month. “They’re a little bit less exposed to onshore North America than others,” Rob Desai, an analyst at Edward Jones in St. Louis who rates the shares a buy and owns none, said in a phone interview. “There will be a little bit slower international […]