VI 
CONTENTS. 
The Puente Hills Oil District, Southern California, by George 
H. Eldridge. Page. 
Introduction. 102 
A ckno wledgments. 102 
Location and topography...■-. 102 
Geology. 103 
Formations. 103 
Lower Puente shale. 103 
Puente sandstone. 104 
Upper Puente shale....:. 104 
Correlation of the Puente formation with the Monterey. 105 
Post-Puente diabase. 106 
Fernando formation. 106 
Pleistocene. 107 
Structure. 108 
General structural relations of the fields.:. 108 
Coyote Hills anticline. 109 
Geologic relations of oil-bearing strata. 109 
Oilfields.. 110 
- Whittier field. 110 
Location. 110 
Geology. 110 
Structure. 112 
Oil wells. 113 
La Habra. Canyon field. 115 
Location. 115 
Geology. 115 
Structure. 116 
Oil wells. 117 
Puente field.i. 117 
Location. 117 
Geology. 117 
Structure. 118 
Oil wells. 119 
Brea Canyon field. 120 
Location. 120 
Geology. 120 
Structure. 121 
Oil wells. 123 
Olinda field.,.. 125 
Location. 125 
Geology. 125 
Structure. 126 
Oil wells. 131 
Chino field. 132 
Conclusions concerning future development. 132 
Petroleum of the Puente Hills district.•. 133 
Yield and gravity of oil in different fields. 133 
Factors in yield of wells. 133 
Associated hydrocarbons. 134 
Storage and transportation.,.... 134 
Utilization of the oil. 135 
Production. 136 
Prices. 136 
Oil companies in Puente Hills district. 137 
