WellSTAR is the Geologic Energy Management Division's Well Statewide Tracking and Reporting System. It is a comprehensive electronic database under ongoing development to better handle data collection and analysis, streamline operations and processes, and adhere to requirements in Oil and Gas Production: Water Use: Reporting, Senate Bill 1281 (Pavley-2014) and Oil and Gas: Well Stimulation, Senate Bill 4 (Pavley-2013), as well as other state and federal laws.
Accessing WellSTAR
The link above serves members of the public who are not representing a formal
organization.
The link above can be used by representatives of oil and gas companies as well as other entities engaged in regulatory work with the Department of Conservation, e.g., laboratories and other state agencies. Login credentials are required for access. If your organization does not already have access to WellSTAR, follow the instructions below to request it.
Establishing A New Organization With WellSTAR Access:
Fill out the OG150 Form and the WellSTAR Operator Administrator Form and email them to wellstar@conservation.ca.gov. Note: while oil and gas operators must fill out the entire OG150 Form, organizations other than oil and gas operators only need to fill out the first page. Department of Conservation staff will review the request and create the organization in WellSTAR. Once the organization is created in WellSTAR, you will receive an email with your username and temporary password.
Accessing Well Finder
The link above provides instructions on how to access and use Well Finder. Well Finder is a well-search tool that displays maps and other information about oil and gas wells and their associated facilities throughout California. A user can search by address, oil and gas field names, latitude/longitude, unique well number (also known as “API”) or Public Land Survey System (PLSS) section/township/range.
Help Using WellSTAR
New to WellSTAR? The page linked above has video and PDF-based training guides on a variety of topics, including WellSTAR navigation and instructions for filling and submitting specific forms. For shorter trainings, see the frequently asked questions (FAQs) below:
> FAQs for Operators <
Use the link above to view frequently asked questions about WellSTAR use.
Before reporting a technical issue, make sure that it can’t be more easily resolved by clearing your browser’s cache. Instructions for clearing your cache in Chrome can be found here.
If the issue persists, contact technical support by filling out the WellSTAR Issue Report Template linked above and emailing it to WellSTAR@conservation.ca.gov.
Well Stimulation and Well Maintenance:
For assistance or questions regarding well stimulation and well maintenance data, please email: WST@conservation.ca.gov.
Data Dashboards
The page linked above contains links to dashboards which display a variety of data, including well production volumes, well injection volumes, submitted permits, issued permits, general well information, underground gas storage, and well stimulation.
WellSTAR For Operators:
Operators Workshops
Next Operator Workshop: July 2025
Is there a subject you want training on? Submit a topic suggestion for a future workshop by emailing it to wellstar@conservation.ca.gov. The subject line of your email should read “Operator Workshop Suggestion”.
Forms
The page linked above contains links to Electronic Data Delivery (EDD) Forms, Business to Government Forms, and Oil and Gas Paper Forms.
Notice to Operators (NTOs)
The link above contains archived Notices to Operators from before the creation of WellSTAR until the present time. Subjects covered by NTOs include updates to regulatory requirements, guidance for compliance, and notifications of upcoming deadlines.
Release Notes
Next WellSTAR release: June 2025
Release notes describe changes and updates to WellSTAR software. The link below includes all release notes from WellSTAR’s inception to the present day.
