SUMMARY OF CONCLUSIONS, 
115 
ing the largest proportion of sulphur are in general the heavy oils 
close to the surface or to the outcrop of the oil measures. 
The marked differences in chemical composition between the waters 
close to the oil measures and those at higher levels are believed to 
afford a means of estimating the position of a water with respect to 
oil. This knowledge should be useful in determining the source of 
water flooding an oil well and also in prospecting for oil or gas. The 
distance above the oil measures at which the marked changes in the 
composition of the water occur depends on local conditions, which 
remain to be determined in each field. The order of change, however, 
has been found to be uniform, and it is believed that the use of analy¬ 
ses in estimating the position of a water with regard to the oil will 
prove valuable to those engaged in the exploitation and development 
of the California oil fields. 
List of water analyses. 
Owner. 
Designation. 
Location. 
Analy¬ 
sis No. 
Page. 
Sec. 
T. 
R. 
Coal in ga field: 
Aenrn Oil Co 
Well No. 1. 
2 
20 S. 
14 E. 
46 
73 
Amerinn.n Petroleum Co.. 
Well No. 2 N. 
30 
20 S. 
15 E. 
61 
76 
Well No. 21. 
30 
20 S. 
15 E. 
62 
* 76 
A<jsor.in.ted Oil Co_ _. 
Water well. 
36 
20 S. 
14 E. 
74 
81 
Oil well. 
36 
20 S. 
14 E. 
75 
81 
Oilwell. 
36 
20 S. 
14 E. 
76 
81 
Oil well. 
36 
20 S. 
14 E. 
77 
81 
Assnniatnd Pipeline Co . 
Water well. 
18 
20 S. 
15 E. 
10 
59 
California Oil & Gas Co . 
Water well No. 1. 
6 
21 S. 
15 E. 
12 
59 
California Oilfields (Ltd.). 
Well No. 2. 
10 
19 S. 
15 E. 
15 
62 
Well No. 16. 
14 
19 S. 
15 E. 
16 
62 
Well No. 16. 
26 
19 S. 
15 E. 
27 
66 
Well No. 37. 
27 
19 S. 
15 E. 
35 
69 
Well No. 5. 
29 
19 S. 
15 E. 
34 
69 
Well No. 1. 
34 
19 S. 
15 E. 
40 
70 
Well No. 15. 
34 
19 S. 
15 E. 
36 
69 
W T ell No. 31. 
34 
19 S. 
15 E. 
41 
70 
Oilwell. 
2 
20 S. 
15 E. 
39 
69 
Coalinpa TTomestaPe Oil Co. . .. 
Water well. 
26 
20 S. 
14 E. 
29 
66 
Coalmine .. . 
26 
20 S. 
14E. 
80 
81 
T) ia 7. Creep 
19 S. 
14 E. 
2 
57 
tTern Trading &. Oil Co.. 
Oilwell. 
35 
19 S. 
15 E. 
37 
69 
Oilwell. 
11 
20 S. 
15 E. 
42 
70 
Oilwell. 
13 
20 S. 
14 E. 
19 
62 
Water well. 
15 
20 S. 
14E. 
43 
70 
.Oilwell. 
25 
20 S. 
14 E. 
22 
63 
Oilwell. 
25 
20 S. 
14 E. 
23 
63 
Oilwell. 
25 
20 S. 
14 E. 
24 
63 
T.ns Gatos Creep 
20 S. 
14 E. 
1 
57 
T.neille Oil Co 
Wells Nos. 1 and 2. 
6 
21 S. 
15 E. 
64 
76 
Nevada Petroleum Co.. 
Well No. 1. 
20 
20 S. 
15 E. 
63 
76 
Well No. 3. 
30 
20 S. 
15 E. 
20 
62 
OznrP Oil Co 
Well No. 3. 
26 
20 S. 
14 E. 
21 
62 
Premier Oil Co. 
Well No. 3. 
24 
19 S. 
14 E. 
18 
62 
"Reeord Oil Co 
Well No. 5. 
22 
19 S. 
15 E. 
17 
62 
Santa Rosa Oil & Development 
Water well. 
12 
21 S. 
HE. 
30 
66 
CO. 
RAution Ravati Oil Co 
Well No. 5. 
7 
20 S. 
15 E. 
60 
76 
Standard Oil Co. 
Domengine No.l. 
27 
18 S. 
15 E. 
78 
81 
Dom engine No.l. 
27 
18 S. 
15 E. 
79 
81 
Water well No. 3 . 
28 
19 S. 
ih E , 
8 
59 
Oilwell. 
36 
19 S. 
15 E. 
38 
69 
Water well No. 2 . 
36 
19 S. 
15 E. 
9 
59 
f Trei Hat*< 5 Oil Co 
Water well . 
24 
20 S. 
14 E. 
11 
59 
Union Oil Co . 
La Vista No. 4 . 
4 
20 S. 
15 E. 
28 
66 
