The long-term climb in oil prices is concerning even top oil-service executives. With U.S. West Texas Intermediate crude at $74.11 a barrel and global supply shortages showing no signs of abating, chieftains like Core Laboratories President and CEO David Demshur are getting worried that if the world’s demand for oil isn’t met, prices could skyrocket to dangerous levels. “If you look at domestic activity here in the U.S., [it’s] fabulous,” Demshur told CNBC. “All of our operations here in the U.S. are doing great. Internationally, year over year, activity level’s only up 1 percent. This gives me great concern about what crude oil prices are going to do over the next couple or three years.” In a Tuesday interview with ” Mad Money ” host Jim Cramer, Demshur noted that in the past 23 years, oil demand has grown by roughly 1 percent each year. But in the last […]