Impurities

Industry Briefs

Mariner Energy said it restarted about 50 MMcfe/d of gas production from its Ochre and Pluto deepwater Gulf of Mexico projects, which were shut in because of hurricane activity last year and in 2004. Ochre, located in Mississippi Canyon Block 66, was shut in following Hurricane Ivan. Production has been restored at about 10.5 MMcfe/d. Mariner operates Ochre with a 75% working interest and Stone Energy has a 25% working interest. Pluto, located in Mississippi Canyon Block 718, was shut in for the drilling and completion of a new well. Start-up was delayed due to Hurricane Katrina. Production from Pluto has recommenced and the well is currently producing at a gross rate of 40 MMcfe/d. Mariner expects to achieve a gross production rate in the range of 40-50 MMcfe/d. Mariner operates Pluto with a 51% working interest and W&T Offshore has a 49% working interest. Mariner estimates that most of its remaining production shut in due to the damage caused by the 2005 hurricanes will recommence during the fourth quarter of 2006.

October 2, 2006

Industry Briefs

Mariner Energy said it restarted about 50 MMcfe/d of gas production from its Ochre and Pluto deepwater Gulf of Mexico projects, which were shut in because of hurricane activity last year and in 2004. Ochre, located in Mississippi Canyon Block 66, was shut in following Hurricane Ivan. Production has been restored at about 10.5 MMcfe/d. Mariner operates Ochre with a 75% working interest and Stone Energy has a 25% working interest. Pluto, located in Mississippi Canyon Block 718, was shut in for the drilling and completion of a new well. Start-up was delayed due to Hurricane Katrina. Production from Pluto has recommenced and the well is currently producing at a gross rate of 40 MMcfe/d. Mariner expects to achieve a gross production rate in the range of 40-50 MMcfe/d. Mariner operates Pluto with a 51% working interest and W&T Offshore has a 49% working interest. Mariner estimates that most of its remaining production shut in due to the damage caused by the 2005 hurricanes will recommence during the fourth quarter of 2006.

September 28, 2006