Mad Dog Oil Field is an offshore oil field located along the Sigsbee Escarpment at Green Canyon blocks 825, 826 and 782, Western Atwater Foldbelt, Gulf of Mexico. The field is located about 190 mi south of New Orleans and 150 mi southwest of Venice, Louisiana, United States. It is in the depth of 5000 to 7000 ft of water. The field was discovered in May 1998 and it became operational in 2005. It is owned by BP (60.5%), BHP (23.9%), and Chevron Corporation (15.6%). The operator is BP. The gross estimated reserves are ranged from 200 to 450 Moilbbl of oil equivalent. The field has production capacity around 100000 oilbbl/d of oil and 60 Mcuft/d of natural gas. Oil is transported to Ship Shoal 332B via the Caesar pipeline, while natural gas is transported via the Cleopatra pipeline. The field is operated by using a truss spar oil platform manufactured in Finland. The hull measures are 128 ft in diameter and 555 ft in length. Its weight is 20,800 tonnes. The deck measures are 220 by. It includes production facilities with 13 production slots, a drilling riser slot and two service slots, and quarters for 126 personnel. The front-end engineering design of the second spar will be done by Technip. It was reported on September 16, 2008 that Mad Dog was damaged due to Hurricane Ike. The drilling derrick was toppled over and was on the sea bed. A new drilling package was built and replaced the damaged one on the spar in early 2012.