102 OTL FIELDS OF TEXAS-LOUISIANA COASTAL PLAIN, [bull. 213. 
Log of United States well east of Spindletop, on Bullock league — Continued. 
17 
18 
19 
20 
21 
22 
23 
24 
25 
26 
27 
28 
29 
30 
31 
32 
33 
34 
Character of strata. 
Gray sand with indications of oil at 1.155 feet 
Blue clay 
Sand with shells 
Hard rock 
Sand with shells 
Blue and red clays 
Sandstone with oil indications below _ ^_ 
Sand with strong indications of oil 
Soft mud 
Sand with shells and indications of oil _ 
Soft sand with indications of oil 
Sandstone and sand with oil in sand 
Red and blue clay with slight indications of 
oil 
Soft mud 
Sand r 
Soft mud 
Sand . 
Blue clay 
Coarse sand and shells 
Thickness. 
Feet. 
199 
4 
108 
4 
23 
35 
90 
30 
53 
107 
30 
80 
15 
20 
65 
50 
50 
50 
25 
Prom- 
Feet. 
1 , 037 
1,236 
1,240 
1 . 348 
1,352 
1,375 
1,410 
1,500 
1,530 
1,583 
1,690 
1,720 
1 , 800 
1,815 
1 . 835 
1,900 
1,950 
2,000 
2, 050 
To— 
Feet. 
1,236 
1,240 
1,348 
1 , 352 
1,375 
1,410 
1,500 
1,530 
1,583 
1,690 
1,720 
1,800 
1,815 
1,835 
1,900 
1,950 
2,000 
2,050 
2,075 
West and south of Spindletop wells have been drilled to depths 
ranging from 1,200 to 2,400 feet. None of these records are available, 
but in general the deposits drilled through were similar in character 
to those found in the wells along the north and northwestern edges of 
this lower field. All these wells have been abandoned, with the excep- 
tion of the Federal Crude. This latter well, which in June, 1902, 
reached a depth of 2,350 feet, passed through considerable quantities 
of gas between 2,000 and 2,100 feet. Between 2,200 and 2,350 the 
drill was in gray sandstone with shells and pyrites, with considerable 
gas. These claj^s and sandstones may possibly be an extension of the 
clays and sandstones found at Rockland and westward along the 
Neches River to Corrigan, in Polk County, and form the floor on which 
the beds grouped as the Coastal Plain formations were laid down. 
This well is the most important one drilling on the western side of 
the field. It is located in an almost direct line along the course of 
the Spindletop anticline and may be expected to decide the question 
as to the conditions under which the oil-bearing rocks occur in their 
westward extension. 
