BP Plc is started containment operation for a new plan to cap a leaking oil well in the Gulf of Mexico after began its three day attempt for capping the well with a “Top Kill” plan. But they failed to prevent the flow of oil. In US history, Gulf of Mexico has been described as the worst environmental disaster.

BP Plc. is a third largest energy company and the fourth largest company British global energy company in the world. It’s headquarter is situated at St James’s, City of Westminster, London and at Two Westlake Park in the Energy Corridor area of Houston, Texas.

BP began using high-horsepower pumps on May 26 to ram a mixture of mud-like drilling fluid and rubber scrap into the oil and gas that’s been spilling for over five weeks, this plan is known as ‘top kill.’

BP engineers rushed Sunday to implement a new high-risk plan to stop the overwhelming Gulf oil leak. After hours the British oil giant recognized failure in its “top kill” plan attempt to plug the underwater well. Company officials said it could take a week to implement the next bid placing a cap over the leak.

BP Managing Director Bob Dudley said CNN’s “State of the Union” program of the newest attempt to deal with the ruptured well nearly a mile (1,600 meters) under water, “Right now we are going to a containment operation.”

Dudley said, “Because this is being done at 5,000 feet with robots, we’re going to take our time, do it extremely carefully. By the end of the week, we should have this in place.”

A combination of heavy drilling fluid and eventually cement will be used for the “top kill” plan to seal the well. According to officials the new attempt plans for reducing the leak, and might temporarily improve the amount of oil gushing into the Gulf of Mexico.

Thousands of oil gallons spew uncontrolled into the ocean each day in the meantime. BP is also drilling a relief well which is regarded as more permanent solution to the worst oil spill in U.S. history. But work will run another two months for finishing; the spill of oil may not be stopped up to August.

There are minimum 20 million gallons expected to have leaked into the ocean after the BP-leased Deepwater Horizon oil rig blasted on April 20 and sank, killing 11 workers.

Robots are using for cutting a damaged “riser” pipe carrying oil from the wellhead and placing a containment device named a Lower Marine Riser Package (LMRP) over the leak.

Managing Director of BP Bob Dudley said ABC’s This Week, “The relief well at the end of August is certainly the end point in this game.” He also said, “The failure … of the blowout presenters is something that’s also very, very troubling. It will impact the industry. It is the piece of equipment that is not expected to fail, and that’s going to have implications for everyone around the world.”

Carol Browner who is top environmental advisor of President Barack Obama told on Sunday that the spill was “probably the biggest environmental disaster we’ve ever faced in this country.” She added, “I think what the American people need to know is that it is possible that we will have oil leaking from this well until August when the relief wells will be finished.”

Carol Browner said, “When you cut the riser, the kink may be holding some of the oil in and so we could see an increase, experts are saying, of as much as 20 percent.” She added, “Once the cap is on, the question is how snug is that fit? If its a snug fit then there could be very, very little oil, if they’re not able to get a snug fit then there could be more.”

By the lack of progress, that is a nightmare scenario for a region under siege and increasingly disappointed.

Obama visited Louisiana on Friday for the second time since the spill began. On Saturday he promised to do anything to help those whose livings have been upended by this disaster.

He said, “We will not relent until this leak is contained, until the waters and shores are cleaned up, and until the people unjustly victimized by this manmade disaster are made whole.” He put in order to Interior Secretary Ken Salazar and other top environmental officials for coming back to the region next week.

An expected 12,000 to 19,000 barrels of crude have leaked into the Gulf each day since the spill began.

Due to this danger disaster stretches of coastal fishing waters has already stopped up, this is endangering the seafood industry and tourism, and threatening a catastrophe for Louisiana marshes, home to many rare species.

According to Government data which was released on Thursday it is suggested between 18.6 million gallons and 29.5 million gallons of oil have poured into the Gulf — far more than the roughly 11 million gallons of crude spilled in the 1989 Exxon Valdez disaster.

Later than The New York Times stated internal company files explained the firm had serious concerns about the Deepwater rig weeks before facing the April accident, this spill has been a public relations nightmare for BP which faced new allegations of inattention Sunday.

Congressman Ed Markey was required BP to make available a live video feed of the oil leak. He said Sunday that he had no confidence whatsoever in BP. BP has been making it up as they go along the whole way. He said on “Face the Nation. I don’t think that people should really believe what BP is saying in terms of the likelihood of anything that they’re doing is going to turn out as they’re predicting.”

The well will be not finished until the middle of the Atlantic hurricane season. The project will be started on Tuesday. The crude will not affect the arrangement of storms, other than the cyclones could push the oil deeper into coastal marshes and estuaries and turn the oil into crashing black surf.

On Saturday BP Chief Operating Officer Doug Suttles said, “This scares everybody, the fact that we can’t make this well stop flowing, the fact that we haven’t succeeded so far.”

Suttles said that at the beginning of the top kill effort, BP put the chances of it succeeding at 60 per cent to 70 per cent. The company created three pumping attempts, injecting over 30,000 barrels of mud into the hole.

Through scientists BP Plc CEO Tony Hayward on Sunday disputed states that the Gulf oil spill have set large undersea plumes adrift and said the cleanup fight has narrowed to face slicks rolling into Louisiana’s coastal marshes.

The University of South Florida, the University of Georgia, Southern Mississippi University and other institutions continue to study they took water samples in the Gulf over the last several weeks.

Marine scientist James Cowan of Louisiana State University said, “There’s been enough evidence from enough different sources.” He was finding a plume last week of oil on 50 miles from the spill site which is reached to depths of at least 400 feet.“