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 ...

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 ...

Baker Hughes has acquired Cornerstone Pipeline Inspection Group, a privately held company that owns a fleet of so-called "smart pigs" for doing pipeline inspections. In this case, the pigs are not ...