"An environmental group petitioned the federal government on Thursday to immediately inspect more than 200 miles (320 km) of undersea oil pipelines off California's coast.

The Center for Biological Diversity cited extensive corrosion that is believed to have caused an onshore pipeline to burst in May west of Santa Barbara, unleashing the biggest oil spill to hit that region in more than four decades.

The failed pipeline, which had been inspected by its owner, Texas-based Plains All American Pipeline, weeks before the rupture, is decades younger than much of California's offshore infrastructure, the group said in its petition."

Steve Gorman reports for Reuters August 6, 2015. [2]