Leading to the disaster
1. Said it could handle a spill of 250,000 barrel per day, and claimed an average of 900 barrels per day in the first 77 days.
http://www.timesonline.co.uk/tol/comment/columnists/guest_contributors/article7150054.ece#cid=OTC-RSS&attr=2270657
2. "Internal BP documents show that BP engineers had concerns as early as 2009 that the metal casing BP wanted to use might collapse under high pressure."
http://en.wikipedia.org/wiki/Deepwater_Horizon_explosion
3. Did not circulate mud properly, possibly causing a build-up of gas at the bottom. http://online.wsj.com/article/SB10001424052748704026204575266560930780190.html
4. Workers removed mud before setting the cement plug, leaving nothing to hold gas from escaping up to rig.
http://online.wsj.com/article/SB10001424052748704026204575266560930780190.html
5. Installed only 6 of the 21 devices Halliburton recommended.
http://online.wsj.com/article/SB10001424052748704026204575266560930780190.html
6. "Halliburton warned that if BP didn't use more centering devices, the well would likely have 'a SEVERE gas flow problem.'"
http://online.wsj.com/article/SB10001424052748704026204575266560930780190.html
7. On just the Deepwater Horizon rig the Coast Guard has issued pollution violations 18 times in the last 10 years.
http://en.wikipedia.org/wiki/Deepwater_Horizon_explosion
8. Stressed workers were behind schedule and felt pushed to finish earlier than safe.
http://online.wsj.com/article/SB10001424052748704026204575266560930780190.html
9. Did not do a test on the cement around the pipe.
http://online.wsj.com/article/SB10001424052748704026204575266560930780190.html
10. "Years of Internal BP Probes Warned that Neglect Could Lead to Accidents"
http://www.democracynow.org/2010/6/9/years_of_internal_bp_probes_warned
11. Six weeks before disaster they failed to investigated a "well control situation".
http://www.businessweek.com/news/2010-05-31/bp-cited-well-control-situation-six-weeks-before-blowout.html
12. Didn't use remote control or acoustically activated triggers, which could have stopped the disaster.
http://en.wikipedia.org/wiki/Deepwater_Horizon_explosion
13. Did not stop drilling despite leak noted on April 9, 11 days before the disaster.
http://www.nytimes.com/2010/07/21/us/21hearings.html?src=mv