Updated

BP is confirming that it plans to use a relief well to shove mud and then cement into the underground reservoir feeding the blown-out Gulf of Mexico well.

Chief Operating Officer Doug Suttles said Friday that crews still "plan to move forward with the bottom kill" at this point.

The company has been hedging on what exactly it will do with the 18,000-foot relief well when it's finished later this month.

Crews have already plugged up the well from the top with mud and cement. But federal officials want BP to plug it from the bottom to make sure it's permanently sealed.

Suttles says crews are preparing to drill the final 100 feet of the primary relief well.