280 RECORD OF DEEP- WELL DRILLING FOR 1905. 
1680. Well near Dayton, Liberty County. 
[Well completed in 1905. Authority, Sun Company, owner. No samples.] 
This well, known as the Sun Company Quintette No. 1, on the J. B. Harrison tract, was, 
up to December 1, 1905, the deepest hole in the Dayton field. The center of development of 
this field was about one-fourth of a mile farther north. Oil was found there at a depth of 
about 800 feet. This log shows no striking features; the formations penetrated probably 
include Columbia and Lafayette sands and the "buried beds." The gravel from 240 to 437 
feet is believed to occur in and at the top of the Lafayette. 
Record of well in the northeast corner of 50 acres in the northwest corner of the S. \ sec. 125, 
Houston and Texas Central Railroad survey. 
Feet. 
Yellow surface clay 0- 20 
Blue shale 20- 33 
White sand 33- 53 
Sand and clay 53- 158 
White quicksand 158- 171 
Blue shale 171- 180 
White sand 180 186 
Blue shale. 186- 193 
Gumbo 193 240 
Sand and gravel 240 325 
Gumbo 325 347 
Sand, putty sand 347- 358 
Sand and gravel 358- 437 
Shale 437- 443 
Sand 443- 465 
Gumbo 465- 481 
Sand 481- 496 
Gumbo 496- 51< 
Sand, putty sand _ 513 52/ 
Gumbo 527 - 56/ 
Sand, putty sand 565- 59' 
Shale , 597- 60 
Sand 601 61! 
Gumbo. . . : 613- 62 
Shale, rock, and clay 621- 66< 
Shale 660- 67 
Hard rock 672- 67 
Gumbo 673- 67 
Sand 679- 70 i 
Shale '. 705 73 
Gumbo 730- 7£ 
Rock. . . . 795- 7£ ) 
Gumbo 799- 8C j 
Shale . '. 806- 81 ] 
Gumbo 818 & ] 
Yellow clay 845- SI ' 
Gumbo 855- 8; 
Clay 875- 85 
Gumbo 884- 8! \ 
Sand, putty sand 890- 8" [ 
Limestone 895- 8' ( ; 
Sand, putty sand. 896- 9 \ 
