Oil Rig Operator: Milestone Reached Three Years After Gulf Coast Disaster

Oil Rig Operator: Milestone Reached Three Years After Gulf Coast Disaster
In this Wednesday April 21, 2010 photo released by the U.S. Coast Guard, a fire aboard the mobile offshore drilling unit Deepwater Horizon burns 52-miles southeast of Venice, La.

It has been three years and two months since the Deepwater Horizon disaster claimed eleven lives and sent millions of barrels of oil spewing into the Gulf of Mexico. Now, the operator of the offshore oil rig says it has reached a milestone. ABC'S Jim Ryan reports.