Before a North Dakota wheat farmer discovered an oil spill on his land on Sept. 29, the owner of the pipeline had used a high-tech device to detect problems on the line. San Antonio-based Tesoro ...

BP decided to shut down its largest Alaskan oil field after inspections by "smart pigs" — multimillion dollar robots that root through the pipelines — showed damage from corrosion. But the pigs still ...

Following disclosure that the aging transmission pipeline that exploded in San Bruno could not be inspected with the most advanced technology — robots called “smart pigs” — Pacific Gas & Electric has ...

Q: What is the route? A: It goes from Otay Mesa to Santee. I don’t have a precise route. Q: Does it go under residential neighborhoods and established businesses? A: It goes through residential and ...

Of all the technologies available to maintain the United States' 2 million miles of pipelines, one of the most critical devices evokes images of a muddy farm animal — the pig. Now erase the image. The ...

Don’t count the cross-Cascade fuel pipeline out just yet. Officials of the Olympic Pipe Line Company, which runs the north-south pipeline that went boom in Bellingham last month, said they’re only ...

In February, Exxon Mobil Corp. sent a small robotic device known as a "smart pig" through a 60-year-old oil pipeline in central Arkansas to find cracks or other problems. The next month, a 22-foot ...