TSX:SOBOOil and Gas
Will Keystone Failure Root Cause Findings and PHMSA Plan Change South Bow’s (TSX:SOBO) Narrative
South Bow Corp. has released an independent root cause analysis of the April 2025 Keystone Pipeline failure, finding that a fatigue crack along the pipe’s manufactured long-seam weld, exacerbated by long-term hydrogen exposure, led to the incident and prompting enhanced inspections and integrity digs under PHMSA oversight.
The company’s detailed disclosure and submission of a remedial work plan, including modified inspection processes and multiple in-line inspections, highlight a focus on...