Most of the reasons you cannot find what you are searching for are related to the specific search criteria.
Some generic reasons are:
Truncation of the data set. See Truncation
The name of something is not exactly as you expected. See Searching by Name and also Tips for Searching
(Note – Try using the wildcard character, the percentage sign ‘%’, before the text string to match names that contain the string.)
The well is old and does not have an API associated with it. See API is not associated to a lease
For specific types of searches, see The following:
Production Why Do I Get No Results
If you believe that Drillinginfo is missing data, please contact support@drillinginfo.com