112 OIL FIELDS OF TEXAS-LOUISIANA COASTAL PLAIN, [bull. 212. 
due to the escape at these points of petroleum from the underlying j 
beds. 
WELL RECORDS. 
Some prospecting has been done in this district, but thus far no 
producing territory has been developed, although traces of oil have 
been found. All the wells thus far drilled have been relatively shal- 
low, and they have not exhausted the possibilities even in their imme- 
diate vicinity. Owing to the southeastward dip of the Coastal Plain 
formations the oil-bearing horizons must be sought at considerably 
greater depth in this district than at Beaumont. 
Two wells have been drilled on Hildebrands Bayou, on the Grange 
league, one at Nederland, one at Port Arthur, and three at Sabine 
Pass, all of which have been abandoned. The sections shown by 
these wells are more uniform than is usually the case in the Coastal 
Plain formations. The following may be taken as typical: 
Log of Port Arthur Oil t 'ompany's well, 2\ miles west of Port Arthur. 
| Elevation, about 25 feet.] 
( lharacter oJ si rata. 
11) 
11 
12 
13 
II 
i:> 
Hi 
Blue surface clay 
Wet blue sand 
Dry white sand 
Blue clay 
Dry sancL 
Blue clay 
Whitish-yellow wet sand 
Dry sand 
Hard blue clay 
Sand with a little oil 
Hard blue clay 
Bluish wet sand 
Blue clay 
Wet sand 
Sand and clay 
Conglomerate of sand, mud, and clay 
Thickness. 
Feet. 
87 
22 
182 
40 
70 
40 
25 
30 
227 
H 
53f 
148 
45 
30 
119 
140 
From- 
Vert. 

87 
109 
291 
331 
401 
441 
466 
496 
723 
724 \ 
778 
926 
971 
1,001 
1.120 
To 
Feet. 
87 
109 
291 
331 
401 
441 
466 
496 
723 
TZU. 
778 
926 
971 
1.001 
1,120 
1,260 
At Sabine Pass four wells have been drilled within a radius of 5 
miles. In general the section shown by these wells consists of alter- 
nate beds of blue clay and sand, the heavy blue clays predominating. 
Three were drilled in prospecting for petroleum and the fourth for 
the purpose of supplying water to the hotel at Sabine Pass. The 
following section may be taken as typical of the four: 
