US scientists reported on Wednesday that approximately 74 percent of the oil from the BP spill in the Gulf of Mexico has been removed, with 26 percent still remaining in various forms such as sheen, tarballs, buried in sediment, or washed ashore. According to the report "BP Deepwater Horizon Oil Budget : What Happened to the Oil?" burning, skimming, and direct recovery from the wellhead accounted for one quarter (25 percent) of the oil removed, while 25 percent naturally evaporated or dissolved and 24 percent was dispersed into small droplets. The remaining oil is either on or just beneath the water's surface, washed ashore, or buried in sand and sediments at the sea bottom. The Unified Command, consisting of government and private efforts, has dealt with 33 percent of the spilled oil so far. The report discovered that a total of 33 percent of the oil spill was removed through various methods such as direct capture, burning, skimming, and chemical dispersion. The remaining 74 percent was naturally removed. Carol Browner, an adviser to President Barack Obama, stated that the majority of the oil seems to have disappeared according to the initial assessment of scientists, which she believes is a significant milestone.