The former chief executive of British oil company BP is jumping into the American artificial-intelligence boom. Bernard Looney is taking on the chief executive role at Prometheus Hyperscale, a data-center developer that hopes to funnel tens of billions of dollars into two projects in Wyoming and another in Texas. The move marks the latest push by oil-and-gas veterans to capitalize on a building boom that has strained power markets and driven the U.S. construction sector in recent years. With energy-hungry projects requiring huge workforces and sprawling supply chains, companies including SLB, Baker Hughes and even major oil companies have vied…