| 1 | All available bathymetric data. |
| 2 | Track charts with locations of geological, geophysical, and geochemical data; seismic lines to be reviewed; site locations. |
| 3 | Structure maps, sedimentary thickness maps, and maps of estimated depth to base of clathrate horizons. |
| 4 | Seismic reflection data sufficient to defend the safety of each site. In the event a site is moved, it is necessary to base the new location on additional seismic data. Documentation should be available for alternate locations. Drilling below the depth of resolution of seismic data will not be approved. Interval velocity information should also be provided. |
| 5 | Seismic refraction, gravity and magnetic data. |
| 6 | Hydrocarbon occurrences at nearby boreholes or exploration wells should be tabulated. Oil companies should have been encouraged to release such data. Potential source rocks should have been identified and mapped. |
| 7 | International jurisdiction and extent of nearby oil leases. |
| 8 | Lithologic descriptions of available cores and dredges, together with existing analyses of sediments and bottom water for presence of hydrocarbons. |
| 9 | Regional geologic maps and cross-sections for consideration of possible relationship of onshore and offshore geologic sections. Reservoir data should also be made available, if possible. |