A rod-like boring pipe Enbridge left in the Straits of Mackinac bottom after it broke last fall is about five times longer than the Canadian oil transport giant initially told state regulators, ...

SEATTLE — Experts say they've at least partially solved the mystery of what's been blocking a massive tunnel-boring machine beneath downtown Seattle for the past month: a steel pipe. The $80 million, ...

Crews discovered an 8-inch steel pipe protruding through one of the openings of Bertha the tunnel boring machine today. The Seattle Tunnel Partners aren't ready to say exactly what is blocking Bertha, ...

Rising oil prices are driving new U.S. drilling activity, increasing demand for OCTG, tubing, casing, drill pipe, and line pipe. As oil prices strengthen, operators are expanding drilling programs and ...