California Well Sample Repository


We 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).

Our catalog lists tens of thousands of core, cuttings, well logs, and paleontology samples that are available for view from the thousands of California oil, gas, water and core wells stored in our collection. This catalog, which is in Microsoft Excel (.XLS) format, is 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 is reached by entering the south gate of the CSUB campus from Camino Media Drive in Bakersfield.

We are open:  
Monday: 8:00am-2:00pm
Tuesday: 7:00am-10:30pm
Wednesday: 8:00am-2:00pm
Thursday: 7:00am-10:30am
Friday: CLOSED

You can also email our curator, or call him at (661) 654-2324 for more information.




The Repository operates on a modest annual budget of approximately $35,000, which provides for the curator, temporary student help, supplies, shelving, and equipment. Volunteer help aides appreciably with day-to-day operations.

Funding for the Repository comes from several sources consisting of user fees, interest from an endowment fund, individuals, corporate sponsors, and professional associations. Students and faculty of schools, colleges and universities are exempt from user fees.

If it were not for gifts from the private sector, this important segment of California geological history would be lost. Its existence and continued operation is predicated on annual gift support. Gifts to support the Repository should be made to the Cal State Bakersfield Foundation. For further information, please contact the Repository Curator at 661-664-2324 or the Foundation Manager at 661-664-2252.