Reuters: The U.S. Department of Interior on Thursday unveiled its final regulations on drilling in the U.S. Arctic Outer Continental Shelf to boost safety in the environmentally sensitive region. The rules set safety standards for exploratory drilling on the U.S. Arctic Outer Continental Shelf for vessels on Alaska's Beaufort and Chukchi Seas. "The rules help ensure that any exploratory drilling operations in this highly challenging environment will be conducted in a safe and environmentally responsible...