Queries can be performed using the attribute data associated with a shape file theme. Queries result in a new shape file (theme) being created with a subset of the records from the original theme. The following queries are available:

Expression Query - These are queries based on SQL statements, such as,  TD>10000 or OWNER="Smith"

Spatial Query - These queries perform queries using the "shape" data for two themes, a "source" and "selection" theme. These queries are good for finding wells falling inside leases or pipelines crossing leases.

Distance Query - Distance queries use a "source" and "selection" theme to find all of the "source" records within a distance to the "selection" theme records. This query can be used to find wells within a given distance to a pipeline theme.