A 60-year-old Elkton woman was injured Wednesday morning in a rollover accident on Highway 138 in Oakland, according to the Oregon State Police. Carol Ann Michels was traveling east in a 2001 Chevy Monte Carlo when for unknown reasons she left the road and traveled into a ditch around 9:45 a.m. near Milepost 6. The car rolled at least once and came to a stop on its roof, partially blocking the eastbound lane. Michels complained of back pain after the accident and was transported to Mercy Medical Center, where she was treated and released, a hospital spokeswoman said. …