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28 GAS RESOURCES OF PARTS OF NORTH TEXAS.
Driller's log of Developers Oil Co.'s well No. 12, near middle of NE. 4 block 9,
about 1 mile southwest of Petrolia.
Thick- Depth.
ness.
Feet. Feet.
Soiland clay .............................................................10 10
R ock .. ................................................................................ 2 12
Hardpan.......................................................20 32
Red clay................................................................................ 8 40
Sandstone, soft.................................................................. 3 43
Shale....................-- ...............-- ...............................------------ 45 88
Sand, hard....................................................................... 7 95
Gravel and clay ...................."--........................................ 30 125
Shale, soft ........................................................." ....... 70 195
Sand, oil ................................................................ 3 198
Sand, hard ............................................................... 7 205
Shale, soft ......................................... ...............- 200 405
Clay, blue............................................................................... 40 445
Sand rock................................................................. .35 480
Sand.................................................................................... 3 483
Clay....................................................................................80 563
Clay and rock........................................................................ 6 569
Sand..... ............................................................. 82 651
Sand rock............................................................................... 15 666
Gumbo ................................................................................ 20 66
Oilsand .................................................................4 690
Sand rock.......................................................................76 696
Shale-d --.............................................................................. 35 731
Oilsand............................................ ................................. 3 734
Sand rock d"........................................................................... 2 736
"Pack sand. .................. . ....................................... 10 746
Shale................................60 806
Clayd r. ........... ................................................................... 15 821
Sand rock.................... ........ ...................................32 853
Clay ro. ............................................................................... 8 861
Sand rock............................. .......... ........20 881
Shale .................................................................. 125 906
Sand rock .. t.. ...................................................................... 412 918
Sand, salt water .......................................................... 34 952
Clay.................................................................... 8 960
Sand rock........................................ ............................... 9 969
Shale n................................................................................,11 980
Do ................................................................. 15 995
Oilsand...2................................................. 7 1,002
Clay, blue ............................................................... 18 1,020
Shale, soft .............................................................. 20 1,040
Sandstone ............................................................... 17 1,057
Shale.......................................................... .. .10 1,067
Sand rock d . .......................................................................... 8 1,075
Shaler. ............................................................................... 30 1,105
Shale.andclay.................................................. ... 15 1,120
Sand rock .......................................................... 16 1,136
Do ................................................................. 27 1,163
Shells and clay............... ........................................................... 24 1,187
Shale .......................................................................... 8 1,195
Sandrock................ ............................................................... 9 1,204
Clay, blue................ ............................................................... 18 1,222
Clay....................................."-----------"- ..................."-----. 15 1,237
Rock . ............................................................................... 6 1,243
Shale............................................................................. 20 1,263
Sandstone............................................................................... 6 1,269
Gumbo ............................................................................... 5 1,274
Sandstone................ ............................................................... 10 1,284
Sandrock.............................................................................. 2 1,286
Shale................................................................................... 10 1,296
Sandrock................ ............................................................... 8 1,304
Clay ................................................................... 20 1,324
Shale............. .......................................... ......... 20 1,344
Broken rock............... ............................................................. ( 16 1,360
Sand rock .............................................................(?) (?)
Sand. ............................................................................... (?) 1,395
Clay, blue ............................................................ 6.30 1,425
Shaler. ............................................................................... 65 1,490
Sandrock................ ............................................................... 5 1,495
Sand ................................................................... 3 1,498
Clay.................................................................................... 12 1,510
Sandy shale ............................................................. 42 1,552
Sand rock.................................. ............................. 15 1,567
Sand.................................................................................... 5 1,572
R ock.................................................................................... 3 1,575
Shale................................................................................... 6 1,581
Sand rock............................................................................... 3 1,584
Shale................................................................................... 18 1,602
Sand rock ............................................................. ..8 1,610