Sep 19:  BP confirmed that well "bottom kill" operations on the MC252  well in the Gulf of Mexico were complete, with both the casing and annulus  of the well sealed by cement. The MC252 well has been shut-in since July 15 and  cementing operations in August, following the static kill ("top kill"), provided  an effective cement plug in the well's casing. The relief well drilled by the  DDIII drilling rig intercepted the annulus of the MC252 well on September 15,  followed by pumping of cement into the annulus on September 17. BP, the Federal  government scientific team and the National Incident Commander (NIC) have now  concluded that these operations have also successfully sealed the annulus of the  MC252 well. While it was leaking the well is estimated to have spewed some  4.9 million barrels of oil into the Gulf of  Mexico.  
     President Obama issued a  statement on September 19, saying, "Today, we achieved an important milestone in  our response to the BP oil spill -- the final termination of the damaged well  that sat deep under the Gulf of Mexico. I commend Admiral Thad Allen,  Secretaries Salazar, Chu, Napolitano, Administrators Jackson and Lubchenco,  Carol Browner, the federal science and engineering teams, and the thousands of  men and women who worked around the clock to respond to this crisis and  ultimately complete this challenging but critical step to ensure that the well  has stopped leaking forever. However, while we have seen a diminished need for  our massive response that encompassed more than 40,000 people, 7,000 vessels and  the coordination of dozens of federal, state and local agencies and other  partners, we also remain committed to doing everything possible to make sure the  Gulf Coast recovers fully from this disaster. This road will not be easy, but we  will continue to work closely with the people of the Gulf to rebuild their  livelihoods and restore the environment that supports them. My administration  will see our communities, our businesses and our fragile ecosystems through this  difficult time."
  
     NIC Thad Allen issued a  statement saying, "After months of extensive operations planning and execution  under the direction and authority of the U.S. government science and engineering  teams, BP has successfully completed the relief well by intersecting and  cementing the well nearly 18,000 feet below the surface. With this  development, which has been confirmed by the Department of the Interior's Bureau  of Ocean Energy Management, we can finally announce that the Macondo 252 well is  effectively dead.   Additional regulatory steps will be undertaken but  we can now state, definitively, that the Macondo well poses no continuing threat  to the Gulf of Mexico.  From the beginning, this response has been driven  by the best science and engineering available.  We insisted that BP develop  robust redundancy measures to ensure that each step was part of a deliberate  plan, driven by science, minimizing risk to ensure we did not inflict additional  harm in our efforts to kill the well. I commend the response personnel,  both from the government and private sectors, for seeing this vital procedure  through to the end.  And although the well is now dead, we remain committed  to continue aggressive efforts to clean up any additional oil we may see going  forward."
  
     BP  America Chairman and President Lamar McKay on completion of the MC252 Relief  Well in the Gulf of Mexico issued a statement  saying, "Today's completion of relief  well operations on the Macondo well is a significant technological  accomplishment and another important milestone in our continued efforts to  restore the Gulf Coast. Our work is not finished, however. BP remains committed  to remedying the harm that the spill caused to the Gulf of Mexico, the Gulf  Coast environment, and to the livelihoods of the people across the region. BP  will continue sharing what we have learned in an effort to prevent a tragedy  like this from ever being repeated. We also believe that the industry will gain  important insights on how to be better prepared to respond to any future  incidents."
 
    Tony Hayward, BP group chief  executive said, "This is a significant milestone in the response to the  Deepwater Horizon tragedy and is the final step in a complex and unprecedented  subsea operation -- finally confirming that this well no longer presents a  threat to the Gulf of Mexico. However, there is still more to be done. BP's  commitment to complete our work and restore the damage done to the Gulf of  Mexico, the Gulf coast and the livelihoods of the people across the region  remains unchanged."
    BP said it will now proceed to  complete the abandonment of the MC252 well, which includes removing portions of  the casing and setting cement plugs. A similar plugging and abandonment of both  relief wells will occur as well. BP will also now begin the process of  dismantling and recovering containment equipment and decontaminating vessels  that were in position at the wellsite. BP said that  approximately  25,200 personnel, more than 2,600 vessels and dozens of aircraft remain engaged  in the Gulf response effort. The company indicated that no volumes of oily  liquid have been recovered from the surface of the Gulf of Mexico since July 21  and the last controlled burn operation occurred on July 20. BP, as part of  Unified Command, continues to conduct overflights and other reconnaissance to  search for oil on the surface. At peak, approximately 3.5 million feet of  containment boom was deployed in response to the oil spill. Currently 670,000  feet of containment boom remains deployed. 
          
     On August 23 processing of claims from  individuals and businesses related to the Deepwater Horizon incident transferred  to the Gulf Coast Claims Facility (GCCF). To date, over 68,000 claims have been  submitted to the GCCF, with over 19,000 claims totaling over $240 million being  paid, including a $34.5 million fund for real estate brokers and agents. Prior  to the transfer to the GCCF, BP had made 127,000 claims payments, totaling  approximately $399 million.
    BP said the cost of the  response to September 17 amounts to approximately $9.5 billion, including the  cost of the spill response, containment, relief well drilling, static kill and  cementing, grants to the Gulf states, claims paid and Federal costs. On June 16,  BP announced an agreed package of measures, including the creation of a $20  billion escrow account to satisfy certain obligations arising from the oil and  gas spill.
  
     The Department of Interior, Bureau of Ocean Energy  Management, Regulation and Enforcement (BOEM) and Department of Energy (DOE)  reported on the next steps and said; Oversight of the well now transitions from  the National Incident Command to BOEM under a process laid out in the National  Response Framework; DOI and BOEM will oversee the continuing decommissioning of  the Macondo well and its associated relief wells; The relief wells will be  plugged and decommissioned accorded to the regulatory guidelines that require  the setting of multiple cement plugs and testing of plugs; and Before proceeding  with the decommissioning of the relief wells, BP will be required to submit to  BOEM an Application for Permit to Modify (APM) for approval that outlines its  procedures to permanently plug the relief  well.