In a story that ran Aug. 11 about the partial shutdown of an oil field in Prudhoe Bay, Alaska, The Associated Press, relying on information from BP PLC, erroneously reported that the eastern pipeline had not undergone a high-tech "smart pig" inspection since 1992. On Saturday, Aug. 12, the company told the AP that some of its employees were misinformed, and that the eastern pipeline, which began operating in 1977, never had the smart pig inspection. Below is a corrected version of the story: --- PRUDHOE BAY, Alaska (AP) - Federal regulators ordered BP PLC to conduct more rigorous tests...