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 is the only public facility of its type in California. It is open to anyone interested in studying these materials. Primary users are oil company personnel, students and faculty of colleges and universities, and government agencies. The facility is open several days a week, year round. Space is available for on-site examination, but materials may also be sent out on loan.

From time to time, the Repository organizes special displays, called "Open Houses", of representative core from important California reservoirs, such as the Stevens, Winters, Monterey, and Temblor. Maps, logs, cross-sections, and outcrop samples supplement these presentations. Special publications prepared by the Repository staff and other knowledgeable workers provide additional supporting information for these "Open Houses".

Materials from the Repository are used for seminars, schools, and professional meetings, as well as academic and petroleum research. The Repository is eager to cooperate and support any legitimate request for use of Repository facilities or materials.


click here to view our procedures, policies and fees