BP has announced that their latest sealing attempt in the Gulf of Mexico is successful. Currently no oil is leaking.
BP has attached a new containment cap that appears to work.
For the first 12 hours on July 15 (midnight to noon), approximately 5,875 barrels of oil were collected and approximately 3,430 barrels of oil and 22.5 million cubic feet of natural gas were flared.
Things can still change. A couple weeks ago BP also managed to temporarily seal the well, but it broke open again after a couple hours. Only time will tell if this sealing cap holds until the drilling is done for the holes to completely seal this well. Of course there is still plenty of oil that needs to be cleaned up.
More details on the BP site. Live feeds from the different cameras BP has at the well can be found here.