Plains All American Pipeline LP (PAA)

[Timothy Smith]

Plains All American Pipeline (PAA +0.2%), responsible for an oil spill that blackened California beaches, kept shoddy records on emergency training and how it would protect pristine coastline in the event of a break, federal regulators said Friday.

Among its findings, the Pipeline and Hazardous Materials Safety Administration said PAA failed to properly document pressure tests on tanks and failed to keep adequate records on how it would prevent spills in sensitive environmental areas, or respond if one did occur.

The cause of the California pipeline break is still under investigation, and prosecutors are considering possible charges.