I noticed you didn't attempt to prove this critical part of your post.
Geez, I guess Libertarians are just as uninformed as Republicans, oh wait, they vote Republican! Let me know if these articles answer your question, don't know if I can draw you a more explicit picture.
Wiki:
The Deepwater Horizon oil spill (also referred to as the BP oil spill, the Gulf of Mexico oil spill, the BP oil disaster, or the Macondo blowout)[4][5][6] is an oil spill in the Gulf of Mexico which flowed for three months in 2010. It is the largest accidental marine oil spill in the history of the petroleum industry.[7][8][9] The spill stemmed from a sea-floor oil gusher that resulted from the April 20, 2010, explosion of Deepwater Horizon, which drilled on the BP-operated Macondo Prospect.
The explosion killed 11 men working on the platform and injured 17 others.[10] On July 15, 2010, the leak was stopped by capping the gushing wellhead,[11] after it had released about 4.9 million barrels (780,000 m3) of crude oil.[2] An estimated 53,000 barrels per day (8,400 m³/d) escaped from the well just before it was capped.[9] It is believed that the daily flow rate diminished over time, starting at about 62,000 barrels per day (9,900 m³/d) and decreasing as the reservoir of hydrocarbons feeding the gusher was gradually depleted.[9] On September 19, 2010, the relief well process was successfully completed, and the federal government declared the well "effectively dead".[12]
The spill caused extensive damage to marine and wildlife habitats and to the Gulf's fishing and tourism industries.[13][14] In late November 2010, 4,200 square miles (11,000 km²) of the Gulf were re-closed to shrimping after tar balls were found in shrimpers' nets.[15] The amount of Louisiana shoreline affected by oil grew from 287 miles (462 km) in July to 320 miles (510 km) in late November 2010.[16] In January 2011, an oil spill commissioner reported that tar balls continue to wash up, oil sheen trails are seen in the wake of fishing boats, wetlands marsh grass remains fouled and dying, and that crude oil lies offshore in deep water and in fine silts and sands onshore.[17] A research team found oil on the bottom of the seafloor in late February 2011 that did not seem to be degrading.[18] Skimmer ships, floating containment booms, anchored barriers, sand-filled barricades along shorelines, and dispersants were used in an attempt to protect hundreds of miles of beaches, wetlands, and estuaries from the spreading oil. Scientists have also reported immense underwater plumes of dissolved oil not visible at the surface[19] as well as an 80-square-mile (210 km²) "kill zone" surrounding the blown well.[20]
The U.S. Government has named BP as the responsible party, and officials have committed to holding the company accountable for all cleanup costs and other damage.[21] After its own internal probe,
BP admitted that it made mistakes which led to the Gulf of Mexico oil spill.[22]
An overwhelming body of evidence from investigative hearings, media reports, and Deepwater Horizon rig workers demonstrates that the April 20 explosion and subsequent oil spill was a direct product of the negligence and cost-cutting of BP. In the months, days and hours leading up to the disaster, the energy giant ignored numerous warnings that a blowout was likely so that it could hurry its Macondo well into production.
This blatant disregard for workers’ and environmental safety was possible only due to the near total absence of government regulation. BP and rig operator Transocean could trample over safety concerns in the knowledge that there would be no consequences from the federal agency with primary jurisdiction over deep-sea oil drilling, the Minerals Management Service (MMS) of the US Department of the Interior.
One year since the BP oil spill: A colossal failure of the ?free market?