Oil, Gas, and Geothermal Publications

​Most of our publications may be downloaded in PDF format from this site, requiring Adobe Acrobat Reader. Installation is free.

Annual Reports

Annual Reports contain a summary of oil, gas, and geothermal field operations by district, including drilling, production, injection, and reserve statistics on a calendar- year basis.

Legislative Reports

Required reports submitted to the California State Legislature by the Geologic Energy Management Division (CalGEM).

Laws and Regulations

California Laws for the Conservation of Oil, Gas, and Geothermal Resources (now Geologic Energy Management or CalGEM) and the California Code of Regulations (Title 14, Division 2, Chapters 2, 3 and 4)

Statistics and Production

Information on production, injection, and drilling statistics

Technical Reports

Information on reporting production from oil, gas, and geothermal wells; water-shutoff tests; blowout prevention;​​drilling in an H2S environment; and cyclic steaming above fracturing pressure and associated surface expressions.
Oil and Gas


High Pressure Cyclic Steam​

Instruction Manuals

Open-File Reports

General Information