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The Division oversees the drilling, operation, maintenance, and plugging and abandonment of oil, gas, and geothermal wells. The regulatory program emphasizes the wise development of oil, gas, and geothermal resources in the state through sound engineering practices that protect the environment, prevent pollution, and ensure public safety.

Oil and gas operations are divided into six geographic districts. A district boundary map and contact information are listed on this page.   Latest Division news, including publications, changes to laws and regulations, and other developments are listed.
Information regarding drilling and operating oil and gas wells is provided for anyone interested in owning oil or gas wells in California.   Operators may download Division forms.
The Division has a program to reduce the number of idle wells by encouraging operators to reactivate or plug and abandon them. In addition, information on orphan wells can be found at this site.   Injection wells are used to increase oil recovery and safely dispose of the salt and fresh water produced with oil and natural gas.
Information may be found on annual reports, laws and regulations, instruction manuals, production statistics, technical reports, open-file reports, and videos.   The Division of Oil, Gas, and Geothermal Resources prepares and publishes oil, gas, and geothermal field maps for the State of California. The maps are updated on a regular basis and cost $3 apiece.
Download monthly production and injection databases (DBF) for all district offices from 1977 to present.   View monthly production and injection data, by well or by lease, from 1977 to present.
View the latest oil and gas production and drilling statistics.   Access the Division FTP site.
View a brief history of oil and gas production in California.    
Basic information on oil and gas in California, including an award-winning children's comic book, pictures of drilling rigs, natural oil and gas seeps, a general information primer for adults, and other items of interest related to oil and gas.

Note:

Most publications may be downloaded from this site. Others may be ordered by telephone or over-the-counter from any Division office. Mail orders are accepted in the Sacramento office only. Prices include shipping and handling, except for express delivery charges. Allow 4-6 weeks for delivery. All sales under $25 are on a cash or credit card basis (we accept MasterCard, Visa, and American Express). Cash, check, money order, or credit card authorization for the full amount, payable to the Department of Conservation, must be received before materials will be mailed.

For further information on purchasing these publications, contact Addy Macias, Division headquarters office (916) 445-2341.