As the Deepwater Horizon oil rig continues to spew 210,000 barrels of oil a day into the Gulf of Mexico, the Associated Press takes a look at the rig’s history. Its nine years in operation have seen many smaller spills and fires caused by human error, malfunctioning equipment and weather.
The article does not attempt to determine what caused the rig to explode and sink last week, killing 11 workers. But it details a number of problems, including a 2005 fire caused when a worker forgot he was refilling a crane fuel tank, spilling diesel fuel that then ignited. Bad weather and human error caused it to float off course in 2003 and spill 944 barrels of oil.
The rig, which drilled the world’s deepest offshore well, also collided with a towing vessel in 2003 and sustained $95,000 in damage to its hull, which, if not properly repaired could have compromised its structural integrity or weakened the structure supporting its drilling apparatus, the AP reports.
An offshore drilling inspector told the AP that the Deepwater Horizon’s record of spills and accidents wasn’t unusual in the industry.
A spokesman for Transocean Ltd., the company that owns the rig, told the AP the company will conduct its own investigation of the explosion. Any suggestion that prior incidents were related to last week’s catastrophe are “speculation” he said.
More than two dozen Gulf Coast individuals and businesses have filed suit against oil services contractor Halliburton, which had finished cementing the well shortly before the blast, the AP reports. The plaintiffs claim the oil spill, which is likely to be larger than the Exxon Valdez spill, will harm their livelihoods.
Related: Oil Spill Safeguard Used in Other Nations Not Required in U.S.
