BP Places New Containment Cap Atop Leaking Gulf Oil Well

A new containment cap has just moved into position atop the ruptured oil well beneath the site of the Deepwater Horizon disaster, and officials are taking a wait-and-see attitude about the new equipment, MSNBC reports.

"Until we have the cap on, securely fitted in place, and know it's operating per the design, we have to recognize this is a complex operation," BP's COO said today, the 83rd day since the explosion that set off the worst environmental disaster in American history.

The new BP containment cap was installed on the Deepwater Horizon LMRP at approximately 9:00 p.m. ET, BP announced in a statement. The installation process is finished and the new cap has been sealed. Testing will begin on July 13, 2010 to determine how much oil the new cap is preventing from flowing. The test, referred to as a well integrity test, will take between 6 and 48 hours to complete.