Oil, Gas, and Geothermal - Well Stimulation Regulations

​​​​​​ Senate Bill 4 Well Stimulation Treatment


OAL Reference Number: Z-2013-1105-01
The Office of Administrative Law approved the rulemaking and filed the regulations with the Secretary of State on December 30, 2014. The regulations became effective July 1, 2015.


Final text of regulations, approved by OAL 12-30-14​

Well Stimulation Treatment Neighbor Notification Form (7/15 version), 12-30-14​

OAL Approval, 12-30-14​

Updated Informative Digest, 12-30-14​

Final Statement of Reasons, 12-30-14​

Public Comment Summaries and Responses (11-15-13 comment period), 12-30-14​

Public Comment Summaries and Responses (6-13-14 comment period), 12-30-14​

Public Comment Summaries and Responses (10-9-14 comment period), 12-30-14​

DOC filed a CEQA notice of exemption with the Office of Planning and Research on November 3, 2014.

CEQA Notice of Exemption​, 11-3-14

DOC sent out public notice to interested parties on October 9, 2014, that revisions to the text of the proposed regulations are available for review and comment. The public comment period ran until October 24, 2014.

15-Day Public Notice, 10-09-14

Second Revised Text of Proposed Regulations, 10-09-14 

Emergency Regulations, 07-01-14


DOC sent out public notice to interested parties on June 13, 2014, that revisions to the text of the proposed regulations and documents added to the rulemaking record were available for review and comment. The public comment period ran until July 28, 2014.

45-Day Public Notice​, 6-13-14

First Revised Text of Proposed Regulations​, 6-13-14

Well Stimulation Treatment Neighbor Notification Form ​(1/15 version), 6-13-14

DOGGR Discussion of Calculated Acid Volume Threshold, 6-13-14

DOC submitted the following documents for this rulemaking to the Office of Administrative Law on Tuesday, November 5, 2013. The public comment period ran until January 14, 2014.

60-Day Public Notice, 11/15/13 

Text of Proposed Reg​​ulations​, 11/15/13

Initial Stat​ement of Reasons (ISOR)​, 11/15/13 

Preliminary Economic and Fiscal Impact Statement​ (STD. 399), 11/15/13  

Economic Impact Analysis​, 11/15/13



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