In the course of a regional seismograph survey an anticlinal dip reversal was obtained in the foothill

End_Page 2779------------------------------

topography on the south side of Cuyama Valley, California. Further investigation of this significant anomaly led to the mapping of an anticline closed on three sides with indications of the presence of faulting on the fourth side to aid in creating a trap. On the basis of this information a test well was drilled which resulted in the discovery of the South Cuyama oil field May 4, 1949. Illustrations are shown on the key seismograph cross sections and some of the difficulties of the work discussed. The original seismograph contour map as well as the map drawn from well data are shown to enable an evaluation of the seismograph prediction. As of June 30, 1953, the field contained 235 producing wells and had a cumulative production of 44,172,749 barrels of oil and 29,312,888 Mcf. of gas.

End_of_Article - Last_Page 2780------------