California Well Sample Repository


click the photo for a larger imageWe are the only facility in California providing permanent storage and public use of cores, sidewall samples, drill cuttings, outcrop samples, microfaunal slides, foundation borings, and mineral suites. Our collection, started in 1975, is housed in two 6,000 ft2 buildings on the campus of the California State University at Bakersfield (CSUB).

We have extensive catalogs on thousands of California oil, gas, water and core wells stored in our collection, with tens of thousands of catalog entries on core, cuttings, well logs, and paleotology samples available for view. These catalogs, in Microsoft Excel (.XLS) format, are available for download from this website. You may also visit us in person, and you will find us on the west side of Roadrunner Drive, which you can reach by entering the south gate of the CSUB campus from Camino Media Drive in Bakersfield.

We are open:
9am to 3pm
Tue, Wed, Thur

Or call or email our curator at (661) 654-2324 for more information.




The collection at the California Well Sample Repository includes:

Most of these cores and samples would never have been made available for study by the public, and would have been discarded and destroyed by their owners were it not for the Repository. Our collection includes materials from every major oil company in California, cores from many exploration wells drilled by independents, and cores from mining and geothermal companies.

click here to view our catalog

California cores in our collection
(click the map for a larger view)

San Joaquin Valley cores in our collection
(click the map for a larger view)



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