GULF OF MEXICO - The mobile offshore drilling unit Development Driller III (near) is prepared to drill a relief well at the Deepwater Horizon site May 18, 2010, as the MODU Q4000 holds position directly over the damaged blowout preventer. While the drillship Discover Enterprise (far) continues to capture oil from the ruptured riser, preparations for the possible utilization of a "junk shot" or the "top kill" method are being made aboard the Q4000. U.S. Coast Guard photo by Petty Officer 3rd Class Patrick Kelley.