GIS Mapping

​​​​​​​Geographical Information System (GIS) mapping uses spatial (geographical) data to create information-rich maps that benefit understanding, analysis, and decision-making. A GIS system allows multiple categories of data to be selected for representation on a map.

oil and gas well locations
Oil and gas wells south of Bakersfield

GIS mapping is useful for the Geologic Energy Management Division (CalGEM, formerly DOGGR), industry operators, the public, and other users in various ways. For example, GIS aids in planning for spill management by mapping the locations of wells and associated facilities, other structures, and natural resources.

CalGEM also hosts several interactive maps to allow easy viewing and querying of its GIS data.


GIS mapping helps CalGEM in its mission of ensuring public safety and environmental protection as it oversees California’s oil, gas, and geothermal production. 

Interactive Maps

Well Finder: An Interactive map viewer that includes location of wells, fields, seeps, and notices and permits in California. 

​Data and Maps

CalGEM provides GIS data in downloadable shapefile (SHP) and tabular comma-separated value (CSV) formats. The division also hosts datasets as dynamic map services, indicated as REST links. Find descriptions, update details, and all relevant links below.

The "Readme" document contains definitions of well data elements.

Data Disclaimer

The well information and data represented on this site varies in accuracy, scale, origin, and completeness, and may be changed at any time without notice. While CalGEM makes every effort to provide accurate information, CalGEM makes no warranties as to the suitability of this product for any particular purpose. Any use of this information is at the user's own risk.




Note: For information not found in these tables, please contact the appropriate district office directly.