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A lost circulation of drilling mud triggered a catastrophic blowout on Pemex's S
Featured Event 1979 Event

June 3

Ixtoc I Blows Out: Gulf's Worst Spill Begins

A lost circulation of drilling mud triggered a catastrophic blowout on Pemex's Sedco 135F rig, igniting a fire that collapsed the tower and ruptured the wellhead. This disaster unleashed an estimated 140 million gallons of crude into the Gulf of Mexico over three months, creating the largest offshore oil spill in history at that time.

June 3, 1979

47 years ago

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