HAYES 
KENNEDY. 
^ D ] REGION SURROUNDING SPINDLETOP. 97 
Loij of Harley well, Jeff Chaison tract, Jefferson County, Tex. — Continued. 
Character of strata. 
Thickness. 
From— 
To— 
Feet. 
Feet. 
Feet. 
50 
Hard blue clay with some shells 
13 
1 . 267 
1,280 
51 
Red clay 
37 
1,280 
1,317 
52 
Fine gray sand 1 
40 
1,317 
1,357 
53 
Red and blue clay . - . 
23 
1,357 
1,380 
54 
Fine white sand 
10 
1,380 
1,390 
55 
Blue, red, and brownish clay 
4 
1,390 
1,394 
56 
Blue and red hard clay, with streaks of rock 
from a few inches to 2 feet, mostly lime- 
stones. Strong indications of oil between 
1,450 and 1,460 
205 
1,394 
1,599 
57 
Blue clay with streaks of limestone from 2 
inches to 2 feet 
15 
1,599 
1,614 
58 
Red, blue, and brown clay with limestone 
rock; mostly rock .... 
9 
1,614 
1,623 
59 
Light-blue clay 
2 
1,623 
1,625 
60 
Limestones in thin layers with a few inches 
of mud between 
24 
1,625 
1,649 
61 
Fine white sand with blue clay and limestone 
12 
1,649 
1,661 
62 
Blue clay mixed with some limestone and 
sandstone 
8 
1,661 
1,669 
63 
Sandstone with thin deposits of clay . 
31 
1,669 
1,700 
64 
Blue clay with streaks of limestone and pyrites 
5 
1,700 
1,705 
65 
Sandstone with small quartz crystals and 
black specks and indications of oil at 1,735__ 
38 
1,705 
1,743 
66 
Fine white sand with indications of oil at 1 ,761 _ 
20 
1,743 
1,763 
67 
Blue and red clay and shale and mud 
31 
1,763 
1,794 
68 
Limestone with some very dark-red and blue 
clay 
41 
1,794 
1,835 
69 
Limestone 
2 
1,835 
1,837 
70 
Limestone and clay 
3 
1,837 
1,840 
In this well small seeps or pockets of petroleum were found at 
several depths between 805 and 1,761. Fairly strong indications of 
oil appeared between 1,450 and 1,460, and again between 1,743 and 
1,761. Salt water having a strong flow also appeared at 1,830 feet, 
and small flows of gas were found. 
The Slaughter-Masterson well located on Lot 2 of the Veatch survey 
is one of the deepest wells in the field, having readied a depth of 
2,250 feet. From its location as well as depth it is one of the most 
important holes drilled in this section. The following log has been 
supplied by Mr. Andrews, manager of the company. Owing to the 
death of the driller who was in charge at the beginning, the log of 
the first 360 feet can not be given. 
Bull. 212—03 7 
