November 13, 2008

Mariner Energy Discloses Results at the Surge Prospect on Garden Banks Block 334

HOUSTON, Nov. 13 /PRNewswire-FirstCall/ -- Mariner Energy, Inc. today announced that drilling is complete on its Surge prospect, a deepwater exploratory well located on Garden Banks Block 334 in the Gulf of Mexico. The well was successfully drilled to a total depth of approximately 15,000 feet but failed to encounter hydrocarbons in commercial quantities and was plugged. Mariner operated the well and holds a 40% working interest in the block, which is located in water depths of 2,500 feet.

About Mariner Energy, Inc.

Mariner Energy is an independent oil and gas exploration, development, and production company headquartered in Houston, Texas, with principal operations in the Permian Basin and the Gulf of Mexico. For more information about Mariner, visit the company's website at

Mariner Energy, Inc.

CONTACT: Patrick Cassidy of Mariner Energy, Inc., +1-713-954-5558,mobile, +1-713-261-2627, [email protected]

Web Site: