The Market Trends That Might Signal Oil Has Bottomed Explorers once again idled drilling rigs in U.S. oilfields as crude inventories continue climbing, boosted by a surge in imports. Rigs targeting oil in the U.S. fell by 15 to 372, after one rig was added last week, Baker Hughes Inc. said on its website Friday. More than 150 have been parked since the start of the year. Natural gas rigs gained 3 to 92, bringing the total down by 12 to 464. Production fell last week by 30,000 barrels a day last week […]