IT AT 
K.I 
cknnfdy?] BEAHMONT DISTRICT. 69 
SPINDLETOP POOL. 
LIMITS OF THE POOL. 
The delimitation of this pool, as shown on the map (tig. 3, p. 86), 
has been practically completed by a series of borings made on almost 
every side of the heights and in close proximity to them. Outside of 
the line indicating the limits of the pool these borings have in every 
instance proved to be dry holes. To the south two Avells — the McFad- 
den oil and gas well (No. 40) and the Hebert well (No 39), drilled to 
depths of 1,500 and 2,000 feet, respectively — have been abandoned. 
On the east the Gober No. 1 (No. 37), 1,840 feet; the Stribling (No. 
30), 1,530 feet; and a little farther east the United States No. 7 (w^ell 
No. 38), 2,100 feet, have all been abandoned as dry. Northeast and 
north there are several wells of different depths, bat most of these 
have been abandoned as dry. Among them are the Bayou City (No. 
12), 2,010 feet; the Treadway (No. 18), 1,800 feet; the Allyne (No. 13), 
2,015 feet; the Chicago Crude (No. 21), 1,050 feet; and the T. and 
N. O. Company's well (No. 17) — the celebrated " Keiser-Kelly " — 
2,100 feet. In the same region the Slaughter-Masterson (No. 22) and 
the Ilarby (No. 4) wells are drilling. The Slaughter-Masterson is at 
present (May, 1902) one of the deepest wells in the field, being at a 
depth of more than 2,250 feet. The Harby has reached a depth of 
1,840 feet. 
On the west and southwest the Acme (No. 45), 1,080 feet; the 
Trenton Rock (No. 30), 1,500 feet; the Buffalo (No. 28), 1,400 feet, and 
the Federal Crude (No. 29), 2,350 feet, have been abandoned. A test 
well is now being made of the Federal Crude, and arrangements have 
been made to drill to 3,000 feet if necessary. 
These wells, all of which go to considerably greater depths than any 
of those within the productive territory, practically limit the Spindle- 
top pool to an oval area about 3,000 feet in length and 2,700 feet in 
width. This gives a total productive area of about 200 acres. The 
longer axis of the pool lies approximately southwest and northeast. 
CHARACTER OP OVERLYING BEDS. 
Notwithstanding the great number of wells which have been drilled 
on Spindletop, it is somewhat difficult to obtain accurate detailed 
well records. While the drillers and owners can supply the depth at 
which oil was found, very few appear to have kept anything like a 
reliable log. The general consensus of opinion, based on statements 
of the drillers and on the few logs obtainable, appears to be that the 
first 500 feet of strata from the surface are composed of sands and 
clays, with occasional deposits of shells and thin, irregular seams of 
sandstone. At depths varying from 500 to (500 feet many of the wells 
have passed through limestone and sandstone, which from their irreg- 
ularity and fractured condition are looked upon as large bowlders. 
