BP Biobutanol LLC in 2009. In 2009, BP obtained a production contract during the 2009/2010 Iraqi oil services contracts tender to develop the Rumaila field with joint venture partner CNPC, which contain an estimated of oil, accounting for 12% of Iraq's oil reserves estimated at . In June 2010, the BP/CNPC consortium took over development of the field, which was the epicentre of the 1990 Gulf war. On 1 October 2010, Bob Dudley replaced Tony Hayward as the company's CEO after the Deepwater Horizon oil spill. After the oil spill BP announced a divestment program to sell about $38 billion worth
Volume and extent of the Deepwater Horizon oil spill silts and sands onshore. On 26 May 2011, the Louisiana Department of Environmental Quality extended the state of emergency related to the spill. In April 2012, oil was found dotting of Louisiana's coast. As of December 2012, of coastline remain subject to evaluation and/or cleanup operations. On 15 May 2010, researchers from the National Institute for Undersea Science and Technology, aboard the research vessel "RV Pelican", identified oil plumes in the deep waters of the Gulf of Mexico, including one as large as long, wide and thick in spots. The shallowest oil plume the group detected was at about ,