The Stevens sand, first penetrated in 1936 by the Shell Oil Company's discovery well at Ten Sections oil field, is present beneath a large part of the southern San Joaquin Valley in Kern County, California. It has a maximum known thickness of about 2,000 feet, and at present is yielding commercial production from seven different structures.

It comprises a series of more or less interconnected sands that lies below the top of a prominent chert zone within the upper Miocene. This paper deals primarily with the distribution, character and probable origin of the sand body.

End_of_Article - Last_Page 946------------