Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Name | Type | Entered service | Water depth | Location | Customer |
| --- | --- | --- | --- | --- | --- |
| Cajun Express | semi | 2001 | ft (m) | Brazil | Petrobras |
| Deepwater Champion | ship | 2011 | ft (m) | Gulf of Mexico | ExxonMobil |
| Deepwater Discovery | ship | 2000 | ft (m) | Brazil | Devon |
| Deepwater Expedition | ship | 1999 | ft (m) | Malaysia | Petronas /BHP |
| Deepwater Frontier | ship | 1999 | ft (m) | India | Reliance |
| Deepwater Horizon | semi | 2001 | ft (m) | Gulf of Mexico | BP |
| Deepwater Millennium | ship | 1999 | ft (m) | Mozambique | Anadarko |
| Deepwater Nautilus | semi | 2000 | ft (m) | Gulf of Mexico | Shell |
| Deepwater Pathfinder | ship | 1998 | ft (m) | Gulf of Mexico | Eni |
| Development Driller III | semi | 2009 | ft (m) | Gulf of Mexico | BP |
| Dhirubhai Deepwater KG1 | ship | 2009 | ft (m) | India | Reliance |
| Dhirubhai Deepwater KG2 | ship | 2010 | ft (m) | India | Reliance |
| Discoverer Americas | ship | 2009 | ft (m) | Gulf of Mexico | Statoil |
| Discoverer Clear Leader | ship | 2009 | ft (m) | Gulf of Mexico | Chevron |
| Discoverer Deep Seas | ship | 2001 | ft (m) | Gulf of Mexico | Chevron |
| Discoverer Enterprise | ship | 1999 | ft (m) | Gulf of Mexico | BP |
| Discoverer India | ship | 2010 | ft (m) | Gulf of Mexico | Chevron |
| Discoverer Inspiration | ship | 2010 | ft (m) | Gulf of Mexico | Chevron |
| Discoverer Luanda | ship | 2011 | ft (m) | Angola | BP |
| Discoverer Spirit | ship | 2000 | ft (m) | Gulf of Mexico | Anadarko |
| GSF C.R. Luigs | ship | 2000 | ft (m) | Gulf of Mexico | BHP Billiton |
| GSF Development Driller I | semi | 2004 | ft (m) | Gulf of Mexico | BHP Billiton |
| GSF Development Driller II | semi | 2004 | ft (m) | Gulf of Mexico | BP |
| GSF Explorer | ship | 1972/1998 | ft (m) | Indonesia | Marathon-led Consortium |
| GSF Jack Ryan | ship | 2000 | ft (m) | Nigeria | Total |
| Petrobras 10000 | ship | 2009 | ft (m) | Brazil | Petrobras |
| Sedco Energy | semi | 2001 | ft (m) | Ghana | Tullow |
| Sedco Express | semi | 2001 | ft (m) | Mediterranean Sea | Noble Energy |
| Transocean Barents | semi | 2009 | ft (m) | Norway | Det Norske Oljeselskap ASA |
| Transocean Spitsbergen | semi | 2009 | ft (m) | Norway | Statoil ASA |
Question:
What is the name of the location and ship type in the Gulf of Mexico that entered service in 1999?
Answer:
Discoverer Enterprise