Scholars' Mine
Masters Theses
Student Research & Creative Works
1967
A subsurface geologic study of petroleum
possibilities in the Pennsylvanian rocks of Concho
County, Texas
Gregory Paul Kraus
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Part of the Geology Commons
Department: Geosciences and Geological and Petroleum Engineering
Recommended Citation
Kraus, Gregory Paul, "A subsurface geologic study of petroleum possibilities in the Pennsylvanian rocks of Concho County, Texas"
(1967). Masters Theses. 6955.
http://scholarsmine.mst.edu/masters_theses/6955
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l
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{) '
A SUBSURFACE GEOLOGIC STUDY OF
PETROLEUM POSSIBILITIES IN THE PENNSYLVANIAN ROCKS
OF CONCHO COUNTY, TEXAS
BY
GREGORY
P~AUS
- I 'l.slo -
A
THESIS
submitted to the £aculty o£
'.rHE UNIVERSITY OF MISSOURI AT ROLLA
in partial fulfillment o£ the requirements for the
Degree o£
MASTER OF SCIENCE IN GEOLOGY
Rolla, Missouri
1967
Approved by
1.32003
A BSTIL\CT
by Concho
broad,
County
]_ow
\v<ts
portion of'
<t
arch Hith a
karst
tt·nnsgrcssion inundated
\vi th_
and
trnnds
producer,
further
\vhere
but
an~<t
time!
Llll~
to
of
\\·<1:3
Ll:tno
tho
]_:imestones
Tf' more pul1'ol
011111
area i t HLL.l,
in all
features.
The
eastern-most
in
wc~stc1·n
the
trc~nd
is a
failed
of porosity on the upcli p
"reef" up,
ont against
subtlety of'
1'r':--o11LLs
to
Accumulation is generally con-
potenti_al.
the
Tl•r_)
log data.
scattered drilling has
The c;r·c,atost cloterrent
i:::;
i_ts
linwstono
apparont.ly pt'\)vail
the mapped <J.rca.
clean up ovor and wedge
•)ffot·t
to
r·clati.ve
r~lc~ctr·i_c
orogc~nic
trolled by the absence
fieJ.ds
a
s1a·r·oun<.Li_ng- basins.
northeast--southwest
prolific
pct1in:~1ll.a,
A mid-Pcnnsylv<tnL1n mat·inc
i t s position
loc a]_ pre-S tra \vn
portion of
,,,.,.,,pi c'd
the arch and i t became an
essc.)nti.ally 11t.iJLzini;
loca to
Tr~xas
Lhe
t:cl\''
Local sedimentation during Stt·awn
.lac 1·:;ely contr·ollcd by
~c~tt1cly
at'C'<l
shallow water deposition f'avorab_le
development.
nplift
Lhe
topogT<tphy de-veloping on
exposed Ellenburger s1u·..facc.
clear,
t i_IIIC
cat·_ly Pcnnsylv<ltl ian
D1tri.ng·
to
the
tr<:.'tp and
<lrc
p1·obalJ-Lli.Ly,
hn
sandstones
structur·al highs.
success
accut:tnLd. i_ons
and wl1ere
side of
in
tlte
cxpJ_or;tt_i_on
lack of W('!ll control.
-Lo he~
clne
d i_::::c:JvCt'r)d
to
Lll:.'
i_n
i;hr~
r·,)n::;i_dr't•ation
:ii
AC KNO \o/LEDG01 ENTS
Tho authoc \voulcl .like to express his si.ncere opprt'ciation
t o l\1 e s s r s • A • G •
Lhe
Humble O_i_l
data,
~ur-race
S t a r r ,
G :L b b on and II •
T •
A •
and Hefinint; C0111pany fo
and
coscarch grants
to ?-Irs.
B u s l1 n e ]_ l
P •
provid:Lng the
t'
of
sub-
V. H. McNutt for providing tho
which permitted
the
compleLLon of
this
study.
A special note of thanks to Mr. G. E. Thayer of Edgar Tobin
Aerial
Me.
Surveys
()11C'Olll'<1{~-(?lil(>tlt
ML~'sour·i_
at
Spccia.l
of Gt:!ology at
g·('no t•ous
s L L'Uc Live
h'ho:>n
HolJa,
study area,
_in
the
and
to
A
noto
Dr.
A.
C.
of thanks
Ln \vost-contcal
or
501ll'CO
the
typed
coopc~r.·aL-Lon
due
t _LJJHc) in disc us s ion
sug{Scstions.
who
is
Ln::;ight
a.nthor
Lhc~
made
Ls
into
Texas
tho
Spreng,
to Mr.
a~ffonled
poss i_ble
tho
complet_ion
eor
M.
the
L.
to
the
con-
Bi t'd
auLhor
of that
_l)l'Ob.lcms
and whose
Pt·o[<Jssor
for hL f3
a.nd
docpJ.y _indebted
lll<1.llUsct·ipt,
ProCc•:-;sor
acknowlcd,~·cd.
e·t·atc.)fully
Vl)'-'Y
or
Un_ivor::;ity of l\LLssouri at Ho.lla,
gi vi.ng of his
F:ina.lly,
Lor·otta,
.
aJ,d cxpct'i()llCOd guL<lance
appreciatLon
l~x-porience
::;pee Lll
<.ttld
of the
a s s i s t nnc e •
Tho
a
supplying maps
D. R. Stack of the Missouri Geological Survey for his
G' c) n j_ "- _l
ot'
for
l'C{';.Lon.
his HLfo,
por~;<)Vt't'anco
of
the~
rc'Lll-i.l'0-
j_:Li
TABLE 01." CONTENTS
PAGID
r•
L \TI~O l)!iCTTON
A •
0 h j 0 c t i_ v c> •
B.
r
Loca_tion
LI •
/\;\f
r t: •
HI·:C~TO~AL
OLL
FJNDI\'G
l'ILLLOSOPIIY.
GEOLOC~TC
IIJSTOI{Y.
P L' c' - P t) n 11 s y l -v a 11 i n n •
Pt'nns:y l_v;lnian.
Pos t-Pennsylvan Lan
A•
13.
C.
LV.
1
3
3
P 1·~.\:"'S Y I.V ,\NL\ N GEOLOGY TN CONCHO COUNTY
A.
S t L'a t Lgraphy
1.
Stra1vn
2.
Canyon
J.
Ci.·.:;co.
n. o i. L a ' 1< l (~ a s P 1 • o t l1 1c t i o n
v.
15
15
17
19
19
20
22
~I; 1
(~
l' I' i
I II'~
::; L I'll<' t
.
;::; i
~~ t
D.
E.
v [.
6
6
9
13
I';J\\'11
l'<t\\'11
C<Litynn
CO?\'CLfJSTON
p
I . () ·~
tll'c)
.:--l;J
l_'
s
22
:l.f;lp
2h
2h
ell I I ' C'
ps
l ::np;tc·h
L i Llw Cit<' i<~s
Sand TsolLLh
l\ND
;\I'
~lap.
HECO:'-l~IENDAT_[ONS
29
!U<:FEH ~NCES
AP
l'fap
1~ T·~ N D r X A
HeLl Data.
l 1 l·~N
IH X
B
:-1rlll:>~lt'Cace
VLTA
l'1ap D;ll;a.
Gh
iv
LIST OF ILLUSTRATIONS
FIGUH.ES
1•
PAGE
Locat~on
of study area relat~ve to major
structural features
Pennsylvan~an
2.
General~zed
County,
Plates
I.
II.
TJ:I.
IV.
strat~graph~c
sect~on
2
for Concho
16
Texas
(on back cover)
Structure map on the base of the Coleman
Structure map on the base of
Junct~on.
the Palo Pinto.
Isopach and Lithof'acies lllap of the Stt,rtwn Serj_es.
Iso.lith map of the lower Canyon sands.
I.
INTRODUCTION
Drilling and completion technology have been developed
to the state of the art where
ignored in favor of deeper,
shallow prospects have been
more prolific production.
Not
nearly enough exploratory wells have been drilled in the
past decade
to locate sufficient reserves to meet the
petroleum requirements of the future.
Indeed,
the present
status is one wherG more crude oil reserves are being produced than are being discovered.
This situation can be
rectified only by accelerating the industry's exploration
program to locate the necessary drillable prospects.
The study area is one that has been long neglected
by petroleum goologists primarily because of' its c.lose
proximity to
the Llano uplift,
ment is exposGd at the surface.
where the Precambrian baseDue to its geographic
position during Pennsylvanian time;
activity was at its maximum,
however,
when tectortic
conditions should have been
f'avorablc for petroleum accumulation.
Although middle and
late Pennsylvanian limestones have generally been considered
of' the tight platform variety,
charac te c.
they rapidly change in
Local reefing in tho Strawn Series is ovidc>nt
i'rom :fac ios studies and the 1Tuml1er of wells
from the Goon limestone.
that produce
Economic conditions are :lavoroble
primarily because potential producing horizons are
ltooo -root deep.
less
than
2
8
MATADOR
(I)
2
(I)
~
a:J
X
"'
....
~
~
0
,_
~
~
....
-o
<:,
,A
_,......,~liE ~toE
~
~
0
lA.
~
0
•
KERR
fl.
~
.,:,
0
Figure
1.
Location of study area relative to major
Pennsylvanian structural features
3
A•
.Q_b , j c c t i ve
This study
an attempt to supplement
the present
surface geologic know_lodge of Concho County for
of locating now production potential.
tl1e
This is a
sub-
pucpose
qualitative
analysis confined to the rocks of Pennsylvanian age primarily
because,
in that area,
istics favorable
B.
they are known to possess character-
to petroleum accumulation.
Location
Concho County is located in west-central Texas and
extends approximately from 31
]_aLLtndo and from 99° J7'
0
o6•
l~O" to 100° 06'
JO"
north
50" west lonr;itude.
Tts western boundary li_es UQarly 18 ndlcs east of the city
of San Angelo ]_ocatod i_n adjoin_j_ng 'I'om Groen County.
is
~its
largest
mun~ici_pality
and is situated in the south-
central portion of the county.
II.
AN OIL FINDTNG PfULOSOPHY
The area of
_in
the
quest
areas where
this
for petroleum.
prejudice
exploration effort,
The
a
study has been relatively undrilled
study area is
Any one
in geologj_c
could have
of a
thinking has
stymied the
just as well been selected.
one which f u l f i l l s
petrolewn-bearing province.
number of other
all
I t has
a
the
criteria for
thick sequence of
Pennsylvanian and Permian sediments deposited under concU_tions
favorable
to
of hydrocarbons.
to
the
origin,
migration ond accumulat i_on
Tectonic movement which occurred prior
and contempornneously with sedimontat:Lon prov~Lded an
idea_l
structura_l
climate.
The
sha]_]_ow,
sodiment-ft'ee
waters 1vhich persisted during mnch of the
j_clca_l
environment
The adverse
but are
t)Xplora tionist.
provid<Jd an
for reef development.
conditions which exist
ploration effort are not
factors,
t_Lme
on_ly those
to
st:if_le
j_nherent
often those
created by the
Tt
for example,
is
true,
to rationalize
c;eoloc;ic
that
but
in the <Jxea
inductive
that a l l
the
potential reservoir rocks
in
fact
reefing and 1vinnowed sands
they arc not.
qnent_ly cause a
prob]_I;}Jll is
the
Loca_l
the
area are non-porous.
sudden deviation from
the norm.
tho lack of sufficient geologic
explocationist must base his
c (lUp1 ad w:i__ th the
natural
ex-
skeptical
of study the rocks generally lack porosity,
reasoning must not be used
to
tho
The
data upon
reasoning.
cons o:cva t ism of the
This
Tn
rreprimary
ivhich
i'c1C t
tra:i__ne d
5
sc_Lontiric
mind may result
which mn.y ]_ater prove
As
to
to be
The
vision.
must
or prolific
procluc t Lon.
o:Ll
increasin~ly
He
explorationist must
strive
abandon prejudice
an attitude
willing to
or reasonable
cooperate
more
diffLcult
c]_osc~.
Geologists,
COllib_Lne
anticline
to
is
geophys:Lcists
I t wLLl be
c r i t i c a l now tools
and
present knowledge
thinking.
team errort.
their efi'orts
_fntu t'e •
expand his
imagination Gnd
His
optimism and courage.
in a
and subsurface
management
to
possess
in his geologic
surrace
O_f the
one
condemnation o_f an <lTc:>a
new-er and better c~xploration methods wi_ll bc~come
locate,
llliist
the
petro_leum reserves become
necessary.
to
in
The
and
must be
He must be
~3
era o _f the
essent:La_lly draw:Ln~
and
imp l e
to
a
one-i_noc~rs
petl'oleum
to locate the pett'olollln rnsorvos
the
team :responsibill-i;y
techniques.
provide an atmosphere
I t lviJ_l be
conducive
the
to
to
dcvc)lop
role
of
crcat_Lvo
th:Lnking.
New reserves
which,
to
ing more
examine
niques
date,
wiLl be
have been ignored in :favor of
:fami_liar characteristics.
the
premises
are based because
chl)lll_L s -try.
11
:tocato
open 11
must
standard procedures
success.
The
The
theories
the most modern concepts
explorationj_st
pctroJ.cum
in
subtle~
will
possessre-
of the
_for
past
tltc~
be
of physi_cs
ancl
then be better cquippod
stratigraphic
structure uncJ,~r· hydrodynam_ic
traps
oil-_fincling tech-
mic;ra Lion and ac c Itmula t ion o:f pet l'O l cum mu ::s t
rc)-eva_luated using
to
the
those
Geologists
on which our present
are y_ieldi_ng di_mird_shing
o ci gin,
found by concentrat Lng on
tt'aps
condiLLons.
n.nd in
6
III.
REGIONAL GEOLOGIC HISTORY
Most of the structural development which took place in
the mid-continent region of the southwestern United States
occurred during the Pennsylvanian Period.
I t is for
this
reason that the emphasis herein has been placed upon this
system.
Cheney
th~ Pennsylvanian
(1945, pp. 139-42) felt
so complex that he deemed six series essential to its
adequate classification.
almost continuous
geologic
Deposition and diastrophism were
throughout the period.
Consequently,
time-stratigraphic and rock divisions are often
More than one half of Paleozoic
to establish.
diff~cult
tectonic activity had occurred by Strawn time.
trending
t~oJ.ds
and faults
Northeast
of pre-middle Strawn ago
jn west-
con tral Texas are the product of 111ajor ear.ly and middle
Pennsylvanian orogeny.
North~estern
oriented structure
paralleling Precambrian trends prevail in post-middle Stra\vn
rocks.
A.
Pre-Pennsylvanian
In west-central Texas
the Precambrian basement is
essentially comprised of structurally complex granitic
granodioritic and dioritic rocks.
Texas craton (Flawn,
elongated,
sh~eld
This is part of the
1956, p. 25), a great northwesterly
primarily subsurface,
Precambrian plutonic
which extends from central Texas into southeastern
Tho upper surf'ace or this
by
shield is typified
,,,uathered g-ranites and arkoses of p.robab_le late Cambrian
7
age.
Dur~ng
Paleozoic
t~me
the west Texas embayment.
the craton was depressed
This basin was fragmented by late
Pennsylvanian orogeny for1ning the Central
the M~dland and Delaware basins
term Eastern platform is used
M~dland
to form
(Flawn,
here~n
Bas~n
platform and
1956, p. 32).
to describe
The
the post
basin eastern shelf area.
Marine sediments were unconformably deposited on the
Precambrian surface when a
cegion.
Sandstones,
limestones and
feet
th~ck,
thin
to the north and west.
PI"Ol)a.ble
late Cambrian sea inundated the
dolom~tes,
1250 to 1650
occur southwest of the Llano uplift and gradually
of a
c~xistence
This
thick section suggests the
geosyncline which had deve]_oped j_n
a noctheast trending seaway during Cambrian time
195 2 ,
Go s s ,
pp •
(Cheney and
2 2l~ J- 4lt- ) •
The Ordovician showed l i t t l e apparent change in depositional environment from that of the Cambrian as indicated
by the lithologic
similarity of the lower and upper
the Ellenburger Group.
white,
gray,
The Ellenburger is
buff and brown,
coarsely crystalline dolomite and
Regional
th~nn~ng
character~zed
cherty and sandy,
of'
un~ts
by
medium to
l~mestone.
toward the northeast of the strati-
graphic section be-tween the base of the Cambrian and the top
of the Canyon was first recognized by Cheney (1929).
He
n;Jmed this .feature the Concho divide and later (19h0) r(-)named
it
the Concho arch.
Adams
(1954) restudied
th~s
structure
and proposed the term Texas peninsula for the middle Ordovician
8
to
m~ddle
Ponnsylvan~an,
reserved the
Paleozoic
term Concho arch for a
feature
trend~ng
ax~s.
restr~cted,
more
extending northwest from the Llano
ax~s
is controlled by the
util~zed
here~n
by
of the craton.
in
th~s
upl~ft.
Miss~ss~pp~an
t~me.
Upper
Pennsylvan~an
where exposed to
weather~ng
several hundred feet of
the
presence of a
o:[ the ElJ.enburger.
~ts
1958,
the
pen~n-
rejuvenated
~twas
was eroded of all. but
and a
Solution
karst
act~ v~
tho basal
topography
ty 1s subs tan t~<:lt ed
detrital zone of coarse
chat't and other residual
and
The Ellenburger Group
Pe>riod.
material and red and green shales.
i~ncludcs
submergence
against
sediments overlapped
sect~on,
developed on its surface.
~ts
(Rall and Rall,
snla and ,.;ere subsequently eroded when
to Lhe
(1954) as
Si1ur~an
depos~ted
shoreline in an onlapping series.
pl~ior
unt~1
Ordov~c~an,
rocks had apparently been
Mississ~ppian
w~ll
wr~ter.
low broad arch barely above sea level
Dcvon~an
by
mid-
Adam's usage
The Texas pen~nsula was descr~bed by Adams
a
He
(1956, pp. 31-32) suggested that th~s 1ater structure
Flawn
be
north-south
insoluble
The coarser
mater~als
detr~tus
from solution
Local sands were probably derived
~n
p0rt .from Cambrian sRndstones eroded :f'rom areas of more
extt~eme nplift
t.o Bir·d
(Chc~ncy
(1967, personal
and Goss, 1952, p. 22lt4).
commun:icat~on)
Accord~ng
the areas where
C:lJIIl>ri<Ul sands were cxpc:>ed aud capped with
P~:!'nn:=oylva.nian
OnG example is
the Bronte
9
~n
field located
horizons
B.
Coke County
wh~ch
produces
including Cambrian sandstone
from five
(Faulk,
1961,
6J).
p.
Pennsylvanian
Over much of west-central Texas PennsyJ.vanian rocks
rest
upon Mississippian strata.
In areas
of continuous
deposition,
early Pennsylvanian sedimentation differed
little
that
from
of preceding
~Hssissippian
time.
Early
lagoonal and marine marshes gave way seaward to a
limestone banks.
the
edge
The
limestones were
in turn replaced at
of deep water by poorly aerated shales
1962, pp.
l\Li.ld
lllOVPJJH~nts
band of
(Adams,
37'1--76).
lato l'LLssissippi.an-early Ponnsylvani_an
included fo.lding
mounta:Ln sys toms,
ot·o~~·enic
o:f tho Ouachita and Wichita
uplift. of the Llano
and Red H:i.vor regions,
and emergence and erosion o:f the Centra.l Basin plat:fonn.
Tllese
developments were
intense
succeeded in Atoka
The large,
deformation.
Pennsylvnnian ombayments
tecton·ic
raul t
displacem<'~nt.
structurally simple,
and arcl1es were
Mo
vomc~n
time by more
t s
along
system p.r--obably began in response
cax~.y
seg·ntnnted by .local
the Fort Chaclbont·ne
to moclera te
d.Lffe r·-
cntia]_ movement of the Texas arch and subsiding basins,
cnnt:i.nucd. intcrmittcntJ.y,
th L'ough
l he
~VI
g_ 50)
s IIgge s t
:~
Ill! I
i
l t
by an
<1 I LC ~ 0 I I :-3
Up\\'<ll.'d
though decroas.ing
Pen nsyl van i.an Pc r·iod.
l y
that
W
th i. s
i_ t ll c1 (") 1) 0
L'n.J.a.tivo
S .i.
block
t :i 0 n
dOCi'OaSO
Hall
typo
Tl1is
o
J.ll
j_n
<J.nd
m<~.gnLtiule,
and Hall
( 1 9 58,
PlJ.
C<tul tj_ng occurred
l1ypotht~sis
l;h:i.cknoss
:is vocLt'ied·
or tho
strati-
10
{:',Ti-lphic
units 1vhich Lilled -the
grabens
as
they were
displaced
down\vard.
Atoka
time
\vas
one
Texas hasin and tho
eastern
throng·ht
to be a
1 9 ho,
1o 1 ) •
third phase of
In early Strawn time
area
of
of
Tt~x:a
tho
a
the 'vichita orogeny
s
arch was
the
stable
t c r mc d
tho C o n r-ho
The
wosti:?rn
e.lement betwe<?n the
p l a t :f o r m by Ad a
;1. 1 T
h
p.
;.:G01) and Cheney and Goss (1952,
at'ca
p.
bj_os t t'oma.l
f1encl
lower Strruvn _l
and
hllt'Lal
of
the
from
and especj_ally :favorable
development.
LnH?S
!~ones
pre -PonnsyJ. van ian
supplied fresh
tJ'n.ppod
the
in
A
VPJ'clo
(;llC'
ha:-;in,
f_loods
a
for
<l•:tive 1'1at'ath.on
which con:c>0qucntly
t'c)CO
o1~
b:i.ohf~rmal
a l l but completed
l:he
sur _face.
of c.lastj_cs,
:in early St ca.wn
most
o_f which wore
snction accumulated
{jOOsyncl.Lnal
( ·1 9 5 1 ,
s
sources
subsi(Li.n{s Fot't 'vortll-Kcrr basj_n
LhLck clastic
Toxas
'v _ides pre ad do po s i t:ion o :f 11ppor
Renewed Onachita and Marathon upJ.:ift
time
111
the
19.58,
2248).
of shaJ__low water depos:Ltion remote
eXCf)Ssive clastics
of
(Chen.ey,
transgressing sea covered more
:-:>cdimcnLacy province controlled by
h a c~ n
h; 1 :-:>
tho
arch wore
Ld Lng F'o t't Ho t'th and Texas basins (na l l and Rall,
The
and
the Texas
than during any other Pennsylvanian epoch.
fLl.ttk
~n1h~3
flank
and
Folding wltich preceded Smithwick deposition is
iuundatoct.
p.
of wi_despread suhmergence,
Ln
tllc)
VaJ.
tronc;h which dOV<)lopod .ill
Ol'OGI)JllC
Lvo<l vory
belt.
1962,
(Adruns,
rr·ont
Tho Toxa:o; bas:in,
J:C'\v cJ_astics,
was
too
deep
11
to promote
l~mestone
veneer of shale
depos~t~on
dur~ng
reg~on
The Llano
m~ddle
subs~dence
Epochs.
Many features
~n
were
bas~ns
~rregular~t~es
floor
cont~nued
unable
while the Texas
~s
th~s
reg~on
result~ng
be~ng
Pennsylvan~an
are
from
time.
sub-
result~ng
sea-
where limestone growth
subs~ded.
Many reefs were
enough ru1d were
consp~cuous
p~nched
Bas~n
off
the northern
~n.
reef that
Similar growths lapped onto the Central
Matador-Red River peaks.
The
The Horseshoe atoll
the most
the form of
~n
d~f:f'erential
formed.
h~ghs
bas~n
rap~dly
subs~dence.
Midland basin
th~n
between the Morrow and Strawn
furn~shed
to grow upward
by further
and late
upl~ft
and
block movements probably
wh~le
only a
rece~ved
and Concho platform had undergone
repeated
s~dence
and
surv~ved.
platform and
Thin sections of dark siliceous ·
shale accumulated on bottoms too deep for limestone growth.
Thick sections accumulated in Strawn fault grabens and
deltaic fans
opposite mouths of steep gradient streams
(Adams,
1962, p. 379).
Mid-Strawn ti.me was one of extensive
tecton~c
adjustment.
The Central Basin platform and Matador-Red River range were
rejuvenated.
The 1>/ichi ta-Amar~llo-Bravo range
was the principal new uplift.
ro-elevated (Arlams,
to the north
The Ouachitas were probably
1962, p. 377}.
Submergence of the Texas
arch allowed waters from the Texas embayment area to flood
the Fort 1-lorth
bas~n.
12
Throughout the Canyon and Cisco Epochs tectonic activity
gradually diminished.
The principal source of clastics was
s t i l l the Ouachita-Marathon fold belt,
as well as the Llano
uplift which scpara ted the Fort \-lorth-Kerr basins.
The rate
of subsidence had decreased in the Fort Worth basin and i t
had become choked with debris by the end of the Canyon Epoch.
The pre-Canyon pattern of a
centrally subsiding embay-
ment with broad shelf margins was generally maintained
(Adams,
1962,
p.
In the Midland basin the thin dark
381).
shales and scattered sandstone lenses of late Pennsylvanian
time are not
easily difi'erentiated from
deposLtion.
Thick _limestone and c_lastic
on the
their
submecged shelf margins.
those of Strawn
sections accumulated
Waves and currents dropped
traction load on the subsiding Concho platform when
the depth below wave base became
action.
Thus
these sediments were deposited before reaching
the Midland basin.
first
too great for effective
This basinward thinning of strata was
described by Adams
(1951,
pp.
2604-05) as a
starved
basin facies.
Regional westward tilting,
of the
causing a
shoreward migration
strandline along the Eastern platform,
Canyon time and continued intermittently
Paleozoic.
During periods of cyclothemic
began in late
throughout
transgression of
the sea an orogenic ]_imestone wa_ll grew in quiet,
sediment-
Cree waters and bedded limestones spread shoreward.
period~;
of rc·gression,
floods
the
During
of land-derived detri_tus
13
overf.lowod the
subsequent
shales
shelf often ostab]_ishi_ng a
quiescicnt periods,
served as
a
sur:.faccs
foundation for
limestone wal_l while
now marg:Ln.
o:.f
these
the bedded shel:.f limestone migrated
pp.
J81-8J).
C.
Post-Pennsylvanian
The Permo-Pennsylvanian boundary was
intense
l'1ara thon
clinoform
seaward extension of the
shoreward with continued westward t i l t i n g
fairly
1962,
(Adams,
spanned by a
epoch of deformation centering along the
thrust belt,
the Amarillo-1Vi_chi ta mountains
the Centra]_ Dasin platfonn
1962, p.
(Adams,
l"">cnnsyl van. ian patterns.
g·radual.ly changed from a
typical lime-shale
Dy the
end of the
period a
sediments had filled
(Rall
to
The l\lidland bas.Ln
starved shale
sequence
and
J8J).
Sodinwntation on tho E:."lstorn platf'orm continued
Col]_ow ]_a to
In
faci_es
and Rall,
to
a
more
1958, p. 860).
thick sequence of Permian
the basin.
Regional westward t i l t l n g
had ca.Ut3ed subsi.dence of the Concho arch and platform
whLle
at
uplift.
the
same
time
accon.tuati.ng tho
According to Cheney and Goss
oast1vard reversal
of regional
Bond arch and LJ.nno
(1952,
p.
2258)
an
t i l tin~ had begun by Jurassic
time.
In
the L.lano
Com:1ncltcan
c arnLrian
to
t'P{~·ion
.l:i.mos tones
Pnttll
and
a
Cretaceous
shalot3
s·yl van:Lan ago.
sea <l0posited
overlapping rocks
Con ti.nentaJ.
or Pre-
o.levation clltt·ing
Lho
Cc.'no~oLc
f.lc~~-;ozojc
tho Llano
has
l'Ocks
caused erosion of
and has bt'oue·ht
upli.ft
(Chonoy
the
ro.latively
additional
and Goss,
1952,
thin
promi.ncnce
p.
2259).
to
15
IV.
PENNSYLVANIAN GEOLOGY IN CONCHO COUNTY
During the Pennsylvan.ian,
prior to middle Stra-..vn time,
the study area was primarily one of non-deposition and erosion
due to
its position on the Texas arch.
The southern portion
of this arch had been rejuvenated subsequent to Mississippian
deposition but the central segment had foundered beneath
a
transgressing sea.
By mid-Stra\vn time marine
had again completely submerged the Texas arch,
had become an area of clear,
and its flanks
shallow water deposition.
and shelf-type limestones formed a
has been referred to as
transgression
submarine p.lateau,
the Concho platform.
Reefs
which
Local sodimen-
tation j_n Concho County dur_i_ng th_i_s time was controlled
lan:~ely
by :its position on this platform relative to
Llano uplift and surrounding basins.
the
Shelf-type limestones
predominated but non-frame building organisms apparently
accumulated on local sea floor highs.
During Canyon and Cisco time
the subsiding Concho
platform hoarded the fine clastics which overflowed the Fort
Worth basin during periods of low sea level.
Limestone
formed during or following re_la tive rises in sea level while
fluvial
systems were aggrading their valleys and filling
their estuaries.
A.
Stratigraphy
In Concho County tho rocks of Pennsylvanian ago are
assigned to
sandstone of
tll.o Strav,,rn_,
rc-~putnd
Cnnyon and Cisco Ser:i_es.
Bend age has
boc~n
Pro - S t r a ,,rn
encountered in •,volls
Era System
Series
Leonard
Rock Units
Fusulinid
Zones
Valera anhydrite
Hords Creek ls.
Coleman Junction ls.
"Wolfcamp
Dothan 1s.
Saddle Creek ls.
Crystal Falls ls.
Cisco
(Virgil)
Gunsight ls.
f/J
Q)
~----------------~~----------------------_._____ ~
Home Creek ls.
Ranger ls.
Canyon
(Missouri)
~
Palo Pinto ls.
Capps ls.
Goen ls.
Gardner ls.
Caddo ls.
Atoka (Bend)
•
'C
~
Canadian
Ellenburger Gp.
Croixian
"Wilberns sd.
0
Hickory sd.
Figure 2.
~
-~
E-t
Cross Cut ss.
Strawn
(Des Moines)
(.)
·~
Generalized stratigraphic section
for Concho County, Texas
----
17
of the West Palnt Rock fleld.
These deposlts,
where present,
are probab_ly confined to lows of physiographlc and tee tonlc
origin~
1.
Strawn Sarles
The rocks deposited durlng the Strawn Epoch unconform-
ably overlle
the Ellenburger Group of early Ordovician age.
A detrital zone is characterlstic of this hiatus and probably
represents
the insoluble resi.dues weathered from local rocks
of early Ordovlcian and Mississippian age.
nearly ubiquitous and ranges from perhaps
average
thickness.
This zone is
10 to 1-tO feet in
I t is essentially composed of red,
green or gray shale;
poorly sorted,
and gray chert pebbles;
partially rounded,
and scattered,
fine
brown,
brown
to very fine,
rounded quartz grains.
The Strawn Serles is predominantly a
which thins
150 feet
carbonate section
southeastward from approximately 600 feet
I t consists of flve
toward the Llano uplift.
successive unlts:
and Upper Capps.
to
the Caddo, Gardner,
Goen,
Lower Capps
Although there is no unlversal agreement
among geologists of the region as
graphlc nomenclature,
to the correct strati-
the names utillzed
here~n
are generally
accepted by local workers.
The
buf'f,
"Caddo lime"
brown and b]_ack
to
vc~ry
is composed predominantly of" green,
argil~Laceous,
sometimes siliceous,
firwly crystal line l_imostone interbedded with
18
l>_lack
sl1a.le.
This
un.i t
can generally be
corre.la-ted across
Llle mapped a t'ea.
L~3
'.!.'he Gat'unnr
pr:imat'i..ly gray,
quc)ntly black at'gi_llaceous,
to very
finely
crystalline
sha]_e.
T'h:i_s
e<t.~tel'D
portion. or
unit becomes
the
The Goen consists
bL'Own,
medium
dolomite.
i.l<_~ C
to
l.lllllll; 1 t C'd •
dt'Cini.tion
Those
of
\vOt'k.
ITow('VCt',
LJu::-
i.d
I' i_g
above
a
the
t' t'lll
of
11 J.'t'
the
eastccn
The C;Tpp:-3
('ll;Jlky,
mcdi11111
meet
the
str.i_ctest
(1958, pp.
the
i_ c
o:f
rrame-
and
.iS
1905-06) very s~Lmply
topographic
sea floor'
This wei ter w:ill
t'g<Hl
of a
quan. t i ta t i vely Un.importan t
"extensive
or
absence
and cot'als
20J-Oft.) has commented that
em_inence
bu:il t
.ris_ing
l a q;el_ y
uti_lize
limes torte b u:i l d-up
herein
by
the
regard 1 es s
ft'allltY\vo:rk bu:i.lcl-i_ng organisms.
l.itltn.log'ica.l]_y to
pOt'tion of'
cr:i_no~ids
pp.
abst::-nce
chant~'t~s
3cattered
( 1950,
0 l'g'<11li SillS 11
any o
do not
and
tan and
apparent
leve.l
1~
l:imeston.e
buf'f,
the
gene~
fo
in the
to
an
o t' 11
shale facies
]_oca1_ly where
accumulations
reef as
appaL'ent
The Goon
crystall:i.ne
Van Siclen
t:-oal
medium
interbedded with black
pr.imar:i__ly a
1' L'<lllltJ\VO L'k may be
ind igc' 110 liS
t
li.mestone
occurs
Ladd
t'arely preset'ved.
dcf_incs
sometimes glaucon.i._ti.c,
predominantly of' gray,
t'ec:>.f' clue
a
brown and :Ire-
county.
finely
"Hoofing"
burr,
a
shale
fac~ies
in
the
the )llapped area.
is
essentially e;ray,
to
V<'I'Y
buC.f' and brown,
l'inPly crystalline
.limc~stonc.
SOlllt)LLmes
Thi.s
19
un~t
generally
means of
2.
th~ns
electr~c
Canyon
to the east and can be correlated by
logs across the mapped area.
Ser~es
The Strawn-Canyon boundary is usually placed at
of the Capps
l~mestone,
Triticites.
The Canyon Series ranges from
the lowest occurrence of the
the top
fusul~n~d
approx~mately
~nto
to 900 feet in thickness and can be generally divided
lower clastic
800
a
section and an upper carbonate section.
The clastic section is essentially composed of thick
red,
green and gray shales interbedded with thin,
buff,
tan and brown,
finely
gray,
crystall~ne
fine
argil.laceous,
l~mestones
to very fine,
arenaceous,
medium to
and discontinuous,
lenticular sandstones.
gray,
wh~te
and
The Palo
Pinto formation is the only extensive limestone unit in
this section and i t can be correlated over long distances
by the utilization of electric logs.
The upper carbonate section consists primarily of thick,
buff,
tan and bro·wn,
coarse to very finely crystalline lime-
stone and dolomite,
and several thin,
gray,
sandstone lentils.
According to Jack~on (1964,
these sands are not to be confused with the
fine grained
p.
3231,
"Canyon"
sands
further west which are actually of Cisco age or younger.
3.
Cisco Series
Tl1e
Canyon-C~sco
top of the Home Creek
boundary is conveniently placed at the
l~mestone.
Th~s
series thins from
.:!o
approximateJ_y 750
feet
in
the
The
little
i,eet
southeast
in
the
northwest
portion of
tho
to
that
of Canyon deposition.
similarly uiv:idcd into
th<1n
tLme
Tld.s
diffct'cd
series
a
lower,
primarily clast:ic'
consisting of
thick red,
green,
gray and black,
shales;
and gray,
white
and brown,
upper,
coarse
clolom.Lte
mecliurn
crys taLl inc
to
f:inely
fj_ne
can lJc
section
arenaceous
grained sandstones;
limestone;
and an
section cons.i.sting of buff
crystaLlj_ne
.i_nterbedclod with ·thin,
calcat:'oous,
and
smaJ_l
and
somctinH~s
and gray
white
grained sandstones
limestone
amounts
o1,
and coal.
The
Permo-Pennsylvanian systemic
placed a t
B.
finely
to very fine
predomj_n.an·tly carbonate,
and brown,
sha.J.e
to
fine
500
::; tully at'ea.
sedj_mcntary pattern durj_ng Cisco
from
lc:!ss
the
and Gas
Oil
The
S t r.-:nvn age •
porosity on
apparently
ae;a.ins t
limes.
occurrence
stratigraphic
These
the
of the
u~Ufllly
fusu] __inid Sh,v<1gcr.i11a.
Production
major port:i_on of o:il
produced from
Cn.nyon
lowest
boundary i s
traps
updip
"reef"
sands tonos
s true tuca l
where
:i.n Concho
accumulations
generally exhibit
side
up.
and gas
of f'ields
small
A
where
pcrcontngc
Connty
in limestones of
absence
the
is
ol~
limestor1.cs
produced :ft'om
they clenn up over and 'vcdgo
hj_ghs;
and
f'rom Dc1H:i
is
sands
out
and Cj_ sc o
21
Surface
b<trrnn
graph
surveys
A
have
burst
been
of
1956 \vhen a
through
·the County have
and
subsurface
the
most
seismic
total
of
generally been
studies
successf'ul
and
seismo-
cxp.lora·ti.on
acti.vity occurred
in
1952
·15Lt- crew weeks were spent in
field.
Theee have
seacch
1953-55, and a
Several
of
these
t i - pay d:iscovcries.
was
co1nplotctl
pt:!
day
t'
day
rr.·om
:ft'om a
as
periods
brief,
a
(lual
successful
Sunray
but
of deveJ_opment
successful
Houston No.
day from
the
from
Bend
Gocn lJ.me
2
which fl.owed
pump.
is
be~ en
or oil
o..f o i l
per
Sunray Mid-
177 bbl.•
31 bbl.
llC\v
Carter No.
·185 bb.l.
70 bbl.
example
and yielded
sand on the
f']_o\v:ing
and pumping
Another
::;and.
completions have
M~d-Contincnt's
cliscovory,
the Goon li.me
Ca.nyon.
Cont~n.en.t's
the
three
1961, whi.ch resu.lted in the discovery of six
:Ln
Ci_clds.
been essentially
19Lt-1-h5,
activity:
J!lltl
in.
of' hydrocarbons,
mcthous.
tho
anomalies
o:f o i l
o:f' o i l
per
per
day
1
V.
PHESENTATION AND INTEHPHETATION OF DATA
The
t t' a
ted
c
uset'ul
data utili7-ed in this
fro m e l e c ·t r
l. c
l o g s~ '•
--
however,
in.forrnation concerning the
map p
c~
A.
Mnpping Procedures
d
study was
1..1 n
esscnt:ially ex-
sample cu·ttinc-s
precise
lithology of
lithofacies maps,
and a
Strawn isopach and
Canyon sand isolith map were
pnblished by
the Soutlnvest Happj_ng Company was
The
s
study.
system 1vas established :for
A gt'id
n i e n t
of this
1: 1~8000
the
tt ' o
purpose
A
s true ted for
c u
we _Ll
Lt'llC
the
horizons
tuce
maps wore
purpose
dr~:nvn on
the base
o:f
t'C(Sardnd as
att<~mpt
The
I i
constructed using
ho\vt~ver,
tecln1ique;
tho
inter-
the
mochani_cal contourLack:ing
of high well density.
a
This approach was
structura]_ high.
s
1; u
taken in
to _locate potential anoma_lies which would other-
Li_ 111 i.ti.n&
sut'faccs
for
tho Strawn isopach consi:-d.:cd
Lh(~ Ellr'nhuq_;nr unconformity and tho
111 1 !
limestones.
ic;norcd ~in any rut· thor cxploratj_on effort.
\v j :':lc be
of'
the
to tho contrary, any change in regional di_p was genc'J.'ally
data
;1n
tho
of
consistently correlated across
employed in areas
was
Lnt;
could be
contour~Lng
pretati_vo
]_and map,
_l o c a t ion •
Doth maps were
study area.
con-
nscd as
Coleman Junction and the base of the Palo Pinto
Tlu~se
the
i t s •
Shc-tJ.lo1v and deep structure maps,
b.:t5C~ •
provitlr)d
ne
b
0
t h
0
:f wh i c h
c o ul_ d
bc
·top
or
c on s i s t en t 1 y
tho Up_pcc Ca.pps
c o
I' r C'
Let t c d
o vnc
the mapped area.
logs
ft'Olll
that
the
of these beds,
however,
t~ l_c't:
t ,, Lc
involv<~d.
that record drilled thickness of the unLts
The attitude
so
This map was based upon cla ta
appt'oach ho t'Lzon tal
importance of obtaining true
thickness
is
negligible.
The lithofacies map was constructed utilizing the
Strawn isopach datum levels.
and the
Each electric log was analyzed
total carbonate section in the
difference between the
carbonate section is
loc;a.rithmic
thickness
the measur'e
of
the
set'ics
of clastics
impoctant decrease
in
illustrate a
the clastic
A
c~:.;_t't'pl
po:.;s ihly
the
agt,Togate
of the lower Canyon sands existing between
A count \vas made of the
an attempt
individual
Palo Pinto
sands
in the
limiting descrete
tho
.limostoru~s.
soqnonce
The
to evaluate their vertical distribution.
c r i t e r i a for
sands utilizing electric
\vore:
1.
The Spontaneous Potential deflection from
sha.le
2.
Individual
f:Lvo
J.
line must
Tho
:fc e t
shale
ion,
ratio.
top of the Capps and the base of tho
logs
toLl.l
pn~scnt.
sma.ll but
An isol:ith map was drawn to represent
thickness
nnd
contour interval was utilized wi_th ono
\vhi.ch was necessary to
The
sc:?cies mcasut'cd.
the
exceed -JO mv.
s<_1.nd bodies must be a
minimum of
thick.
interval separating d:i.stinct
mus-t be- in excess of five feet.
sands
in
B.
Structure Maps
Both structure maps
smaLl
p.l un-G·ing anticlines
features
of the region.
contours
in the extreme
well
spacing makes
from
a
Tt
is
orogenic
j_n rate
of d i_p
indicated by
Ho,v-eve r ,
present
to distinguish a
Both mapped horizons
fault
cLip graduaLly
the Llano upl.ift at
an angle
obvious
that
the Llano uplift played a
major
_in contro_lling Strawn deposition in Concho County.
This
:is
substantiated by a
general
thinning of
from approx~ima tely 600 feet
in the northwest
150
By a l l
in the
eaHtward loss
vidttal
ence
or
The
por'L i_ons
or :-; t
or
is
due
this
or
Capp:3
series
less
than
i_ndica tions,
this
south-
to the progressive thinning of indiThe gradua_l
shelf area relative
prcsoncc
tlris
to
thicken:ing or sedlments
is nndoubtedly in response
to
the
to
the
to
slo\v subs Ld-
uplirted Llano
rc~:Lo1~.
of structut·e .in the northern and weslr:'!t'n
the mapped area
t'<l_ wn 1>() c1 s •
the~
southeast.
Strawn units.
the northwest
of
Hap
ro_le
f'eet
<tiHi
clcgree.
Ii_t t'<t~_Tso pach
C.
of domes
southeast corner of the Palo
of faulting.
northwest away from
than one
in strike as
i t impossible
sharp monocline.
the
sudden increase
change
Pinto map may be evidence
lQ:3s
presence
str:Ucing northeast- southwest.
The
accompanied by an abrupt
to
the
tr(~nd parallels major early Pennsylvanian
Thi.s
the
reflect
That
nppet'
this
SIIJ.'J'acc
is
su~gested
thinning is
by local
the
result
thinning
of erosion
is another consi_clC'l:-"at_ion,
but
25
tho
presence of a
this
area.
s-trawn-Canyon uncon:formity is
Local
topographic
lows
obscure
in
thickening probably indicates buried
in tho eroded Ellenburger surface.
Strmvn Li_ thofacios Hap
D.
Widespread carbonate distribution over the mapped area
:indicates
Strawn
that
time.
i t was primarily a
shelf environment
Fine clastics in the
during
eastern portion of the
area wore probably derived primarily from the Ouachitas.
However,
shale is less predominant where
limestone lapped onto
pt'<)::3Qnco
wc:-:-;t<~t'll
flanks
of the Llano upJ_i:ft.
~in
o_f g]_auconito in tho Gardner ]_i_mostone
of tho county sug-,';ests a
p<_trt
c•nvi_t·oniHent
It
the
platform type
clut'Lng
"roof'"
of
the
tho
do;_~p
wal:.er
-that portion of Strawn time.
j_s evident :from the map that
to
relatively
Tho
up in producing fields.
mapped area a
the limestones
In tho western portion
decrease in the clastic
correlates with thinning of tho
tend
series.
t'a tio
Thi_s
is
froqttc'n tJ_y
probab_ly
indicative of roofing a]_ong structural highs durj_ng Str;:nv-n
do p o s
i_
t -i_ on •
Canyon Sand Tso_lith Hap
E.
Ea r·_ly Canyon
.low sea love]_.
f i n
0
Pillto
c l as t -i c s
·
t -Tille
mns t
This
b u bvo en
wllLch domLn<:~.to
is
evident
(;he
tho
11ave beel"'~ a
:fcom the
1)eriocl of ro.latLvc_l·ythick
top o f' tho Capps and
sectLon of
the bas o
sltuLf in tho mapped area.
Tlw
Pa
1_ o
:::;ands
in th_is
section are generaLly thin lentj_cu_lar bodies
coJIIposed of f:in.e
a
to very fine
random aerial distribution.
to be
area.
and exhi_hiting
Localized sands
appear
assoc:iatc:!d with structure in portions of the
It
is
probable
of thoir fines
orr
quartz grains,
that
those
mapped
sands have been winnowed
over sea-floor highs,
becoming argillaceous
their f]_anks belo1..r effective wave base.
2'7
VI.
CONCLUSION AND RECOMMENDATIONS
petroleum potent~al
The
Concho County
~s
Thj_s
too
area was
undaform
further \vest
rocks
here
wh-ich are
areas
tu ce.
HeLls
the
Strawn and Canyon
pr~mar~ly
dj_rect
a
t~me.
from strat~graphic
of' absence
of
of
the
developed
Strawn
facies.
Pro-
accumulations
poros~ty
and of sands wedc-ing out
drj_l.led on surface anoma]_j_os
cosul ted in a
as
The
of
standat'ds.
seaward edge
l~mestone
platform
result
reef~ng
of' local
large by 1vest Texas
the growth of large b~oherms
predom~nantly
the
the Pennsylvan~an rocks
far removed from
dur~ng
are
~s
due Lion
obv~ously not
perm~t
to
~n
in
updip
from
over s t t'uc-
tho
county have
Those barren stt·ncLtll'e.s
(lllcHl LL ty of dry holes.
were pt'obably formed subsequent to source bod clopo:.:: it.ion,
L hey may simp]_ y
discovered in
to
tho
_lack porosity.
the area,
considerat~on
it
of
w~ll,
I f more pe tro]_oum
in a l l
preva~l~ng
is
or
to be
probab~lity,
bo
due
stra t~graphj_c
subsurface
condit-ions.
Subsurf'ace
pnt'poso
of
structur·e maps were
coconnaissanco.
constructed i'or
These maps
reflect
probably associated with pre-Strawn tec·tonic
porosity
is kno 1..rn to be
nnd Canyon sands
i_ n t e J:'Va l s.
-ill_
(h-..
·
0
ll
. 10
c 1_as
1
COlllll;y,
Loc <:Ll
1l; 1.c
•
this
_-L·
s
activity.
in tho
Tho
eastet'n-most
thc':;e
sudden dec roo_se
\vestern port.ion of
·tht'eo l><_1.t'a.lle_l northeast-southwest
appacon t.ly pt'c.'va-Ll.
Sj_n_c e
in Strawn limos
augmented by a
ol)v_ious
so.le
anorna_l~es
efFort has been concentrated in
s t 1·uc t u l'C~,
t; _1_· 0 ,
ra··-
J
0
W.l<J.L'
]_ocal.ly favorab_le
the
trend i.s
a
trnnds
proJ_j_f'ic
28
hut
lJI'c.Hltwcr',
::;cattet'od drill_ing has failed
to
locate
:lurthcr
prJ(r'nLial.
Tt
Ls
Lhc
t'r'<t:'<JtJ;1hlc~
l't'~~'t'ves
i~
l'r'nt
The
in
r~,·r'•'il
\,';~\·
trJ
this
of' success
of
~nhtlcty
of
logs is
this
j_s
:'tt·atic;t'aphic
<tlld
the
trap and
still
CtlJ'Lllct'
the
the
to
exists
a
petroleum
The greatest
deter-
_lack of wel.l
contro]_.
single most
valuable
subsurface
explora-
the
cspecj_ally true when attempting to
accumulations.
:-;cJtdlH'I'll H1111nr'ls Counti.cs
lrl<'iiLr)
there
in locating further
ini'onnation available
and
that
portion of the county.
of Ql.rJc Lt'ic
tionist,
l.rwatL?
ch<.1ncc
!l1o
11sc
sour·ce
opLnion of this writer
Porosity and facies
is pt'obab_ly
pt·oduction in the
the
_limestones
best
of'
Stra~nl.
29
REFERENCES
Adams, J. E. (1962) Foreland Pennsylvanian Hocks of Tcx<ts
and Eastern Now Mexico:
in PennsyJ.van.ian Sys tom in
the United States (a symposium); Am. Assoc. Petrol.
Goal., p. 372-384.
Adams, J. E. , and others (1951) Starved Pennsylvanian
Midland Basin:
Am. Assoc. Petrol. Geol. Bulletin,
Vol. 35, No. 12, p. 2600-2607.
Bishop, H.
Sons,
S. (1960) Subsurface Mapping:
Inc., New York.
198 p.
John 1vi.ley and
Cheney, H. G. and Goss, L. F. (1952) Tectonics of Central
Texas:
Am. Assoc. Petrol. Geol. Bulletin, Vol. 36,
No. 12, p. 2237-2265.
Cheney, H. G., and others (1945) Classification of Mi.ssisj_ppian and Pennsylvall:i_an Hocks of Not'th Amct'ica:
A1n.
Assoc. Pott'o_l. Geol. Bulletin, VoJ_. 29, No. 2, p. ~~~5-­
-, 69.
Cheney, M. G. (19h0) Geo_loe-y or North-Contra]_ T'ex:as:
in
\\'est Texas-New Mexico Symposium, Part I; Am. As~,;oc.
Petrol. Cool. Bulletin, Vol. 24, No. 1, p. 65-118.
EardJ.ey, -A. J. (1951) Structural Geology or North Amor_i_ca:
Harper and Brothers, Ne"iv York. 62h p.
Fla,,rn, P. T. (1956) Basement Hocks of Texas and Southeast
New Mex.ico:
Bulletin 5605, The Univers~ity or Texa::3,
Austin. 261 p.
Haun,
. J. D. and LeRoy, L. iY. ( 1958) Subsurface Geology in
Po troJ_oum Exploration (a symposium) :
Colo raclo School
of Mines, Golden.
887 p.
IIubbet't, M. K. ( 1966) History of Petroleum GeoJ.ogy and I t s
Dearing Upon Present and Future Exploration:
Am. Assoc.
Petrol. Gool. Bulletin, Vol. 50, No. 12, p. 250h-2518 •
..Jackson, iv. E. (-196h) DopositioHal Topoeraphy and Cycl:i.c
Deposition in West-Central Texas:
Am. Assoc. Petrol.
Gool. lhd_]_etin, VoJ.• lt8, No. 3, Pt. I, P• 317-328.
Kl'tlmbei_n, iv. c. and Slos:3, L. L. (1951)
Sc~dillle.ntatton:
second edition, i-1.
Co., Sa_n Francisco.
660 P•
L<ldd,
I£. s. ( 1950) Recent Hoefs:
Bullotin, Vol. Jh, No. 2, P·
AJll.
Stra.ti.graphy and
H. Freeman and
Assoc.
20 3-2 ]l-t-.
Petrol.
Geol.
JO
Lr)Roy, L. \v. ( 1950) Subsurface Geologic Methods (a sympo:3 ium):
second edition, Colorado School of Mines, Golden. 11S6 p.
Levorsen, A. I. (195h) Geo.logy of Petroleum:
and Co., San Francisco.
703 p.
i.J".
II.
Freeman
Link, T. A. (1950) Theory of Transgressive and Regressive
Reef (Bioherm) Development and Origin of Oil:
Am.
Assoc. Petrol. Gool. Bulletin, Vol. J4, No. 2, p. 263291-1-.
Moore, C. A. (1963) Handbook of Subsurface Geology:
and Row, New York.
235 p.
Harper
Murphy, J. A. (1962) Developments in West Texas and Southeastern New Mexico in 1961:
Am. Assoc. Petrol. Geol.
Bulletin, Vol. 46, No. 6, p. 879-889.
Myers, D. A., Stafford, P. T., Burnside, R. J. (1956) Geology
of the Late PaJ_eozo:ic''"'Horsesho...e Atoll in W"est Texas:
Bu]_letin 5607, The University of Texas, Austin.
113 p.
Ha:Ll, H. W. and HaJ.l, E. P. (1958) Ponnsylvani<1.n Subsut'face
Geology of Sutton and Schl_eicher Counties, Texas:
Am.
Assoc. Petrol. Geol. DtLlletin, VoJ_. h2, No. h, p. 8]9-870.
G • C • ( 1 9 6 2 ) Two Tc xa s Count i e s No e d De t tor Ex p lor ation:
Oil and Gas Journal, Vol. 60, No. 1, p. 122-126.
no 1) e r t s ,
Schlwnberger Well Surveying Corporation (1958) Introduction
to Schlumberger Hell Logging:
Document No. 8.
176 p.
Sloss, L. L., Dapples, E. C., Krurnbein, W. C. (1960) Lithofacies Maps; An Atlas of the United States and Southern
Canada:
John iviley and Sons, Inc., New York.
108 p.
Taylor, :F'. B. (1967) Outlook for ShaLlow· Oil Exploration and
Dovc!lopment, United States:
Am. Assoc. Petro.l. Geol.
DulloLin, Vol. 51, ?<•1. 1, p. ·134-1'-~1.
Van Siclen, D. C. (1958) Depositional Topography -- Examples
and Theory:
Am. Assoc. Petrol. Geol. Bulletin, Vol. h2,
No.8, p. 1897-1913.
ivec)ller, J. M. ( 1960) Stt'atit?;raphic Princi.ples and Practice:
IIat'por and Row, New York.
725 p.
Host Toxas-Sn.n Angelo Geological Sociot·ie:'!s (1961) Upper
F:ield Trip
Pet'lll ian to Pl ioceno-S<:tn AngeJ_o Area:
Guidebook, Oct. 19-20.
83 p.
Honds, E. H., nnd others ( ·19h6) Deve]_opments in Host Tcx<ts
and S o 11 t h c> <l :c-:; t o :c n Now l\1 ex i c o :in 1 9 ! ~ 5 :
Am • As ~3 o c • P e t r o l •
C::-eol_. BuJ.lctLn, Vol. JO, No. 6, p. 930-95'7·
APPENDIX A
Well Data
Ref.
Co-ord.
Operator
Field
Location
T.D.
(Feet)
lv'ildca t
Christien-Kirchner
Sur. No. 60
4281
Dry
Jane Mullins
Sur. No. 1
4310
Dry
Sec. 287, Elk. 72,
T & NO Sur.
3850
Dry
\{ell
Xame
'' 0.
.i.'
Status
E-3
Wooley
~0.
2
B-8
H. Central
& Fisher
)J"o. 1 Carter
\v'ildca t
3
H-3
\{estbrook
Xo.
1 Xorman
1{.
4
F-2
Allison &
Prestridge
No.
1 Sims
\vildca t
Edward Grobe
Sur. No. 47
4190
Dry
5
G-12
Amerada
Xo.
1 Jacoby
Wildcat
Fisher & Miller
Sur. No. 2874
J665
Dry
6
N-6
Amerada
No.
1 Buie
Wildcat
Fredrich Stanz
Sur. No. 1727
2995
Dry
7
N-6
Amerada
No. 2 Buie
Wildcat
J. McGregor
Sur. No. 42
2234
Plugged
8
N-6
Amerada
No. J Buie
Wildcat
J. McGregor
Sur. No. 42
2490
Dry
9
M-6
Amerada
No. 4 Buie
Wildcat
F. A. Bremer
Sur. No. 1830
2292
Dry
1 Sims
Paint Rk.
w
.....
ivell Data (Continued)
Ref.
Co-ord.
Well
Name
Operator
No.
Location
Field
T.D.
(Feet)
Status
-:o
o-6
Amerada
No.
"I Riley
1\fildcat
J. F. Irwin
Sur. No. 1730
2840
Dry
1 ·1
P-7
Amerada
No.
1 Riley
Wildcat
Curtis Morris
Sur. No. 742
2625
pry
12
M-6
Amerada
No.
1 Wade
Wildcat
Fisher & Miller
Sur. No. 2771
2862
Plugged
.I J
H-6
Amerada
No.
1 Whitfield
ioiildca t
Fisher & Miller
Sur. No. 2769
JOSO
Plugged
1 Lt
M-6
Amerada
No.
2 ivhi tfield
i.fildca t
Fisher & ~1iller
Sur. No. 2769
2510
Dry
-·~
G-10
Anderson,
et al.
No.
1 Martin
Eden
'h'illiam Hughes
Sur. Xo. 6
J995
Dry
16
E-15
Anderson
No.
1 lvilson
1\ildca t
Thomas Green
Sur. Xo.
2198
Dry
'17
E-15
Anderson
No.
2 i.filson
ivildc at
Sec. 76, Dlk. 8,
li & TC Sur.
1 J92
DI·y
i8
Yl-6
Anthony &
Garner
No.
1 Iilli tfield
\,· il ck a •~
F' is l1e 1~ &. :-!iller
1 7 J~~
DI'Y
250J
D1·y
~
19
:'-1- L~
Apache Drlg. .:-io. 2 Hartgrove
Sur. Xo.
\·: ildc at,
2769
Sec . 49, Blk. 70
& TC Sur.
.,
n
-
•v
Well Da~a (Continued)
Rei'.
No.
Co-ord.
\{ell
Name
Operator
Field
Location
T.D.
(Feet)
Status
20
0-7
Baker &
Fidel
No.
1 Hill
Wildcat
J. Frederick
Sur. No. 1694
2J67
Dry
21
J-5
Becker,
et al.
No.
1 Sansom
1\Tildcat
F. Schrader
140J
Plugged
Sur. No.
JJ7
:?2
L-12
Belcher
No.
1-A Loveless
Wildcat
Sec. 10' Blk. 71 ,
H & GN Sur.
J590
Dry
2J
M-J
Birdwell &
Son, et al.
No.
1 Barr
Wildcat
F. J. McCarthy
Sur. No. 2
2504
Dry
24
M-5
Birdwell &
Son, et al.
No.
1 Crunk
\-lildca t
Fisher & Miller
Sur. No. 2771
2505
Dry
25
F-J
Blanco
No.
1 Sims
\Vildca t
c.
Guenther
Sur. No. 52-C
4100
Dry
26
i\1- J
Dro1-..rn &
Stone
No.
1
sel ey
\Vildcat
John Xinor
Sur. Ko. 48
J270
Dry
27
G-1J
CB Drlg.
No.
1 Pfluger
\Vildcat
)~_.
Sa tor
Sur. No. 2088
21JO
Oil Prod.
28
G-1J
CD Drlg.
No. 2 Pfluger
\{ i ldc at;
A. Sat: or
Sur. Xo. 2088
J6i~
0
Dry
29
I-5
C:VlS Oil
No.
Paint: Hk.
Ott-o He gar
Sur. Xo. J27
27 ~~ J
Dry
~1o
1 Joan
'-·~
~
Well Data (Continued)
Ref.
Co-ord.
Well
Name
Operator
No.
No. 1 Sansom
Status
Location
T.D.
(Feet)
1-lildca t
Sec. 127, Blk. 72'
T & NO Sur.
1502
Dry
Pfluger
Fisher & Miller
Sur. No. 2871
2135
Oil Prod.
Field
30
I-6
C)1S Oil
31
G-13
Concho Drlg. No.
32
H-9
Continental
No. 1 Hall
Wildcat
Heinrich Graman
Sur. No. 1998
3800
Dry
33
H-5
Continental
No. 1 Campbell
Paint Rk.
Carl Frantz
Sur. No. 304
3506
Gas Prod.
34
I-5
Continental
No. 1 Mciver
Paint Rk.
H. Heidelberg
Sur. No. 314
3444
Gas Prod.
35
H-4
Continental
No. 2 Hartgrove
Paint Rk.
Sec. 134, Blk. 72'
T & NO Sur.
3652
Gas. Prod.
36
G-7
Continental
No. 1 Cox
N. Speck
Sec. 149, Elk. 72'
T & NO Sur.
3668
Plugged
37
G-7
Continental
No. 2 Cox
N. Speck
Sec. 149, Elk. 72,
T & NO Sur.
3654
Plugged
38
N-10
Cosden
No. 1 Jenkins
Wildcat
Thomas McCarthy
Sur. No. 6
28J1
Dry
J9
I-1J
Davisson &
Fitzgerald
No. 1 Lapp
Wildcat
Gideon Page
Sur. No. 25
2938
Dry
1 Lubke
-
\....,j
....
1vell Data (Continued)
Rei'.
Co-ord.
Operator
Well
Name
}J·o •
Field
Location
T.D.
(Feet)
Status
40
E-14
Davisson &
Fitzgerald
No.
1 Sorrell
Wildcat
Sec. 65, Blk. 8,
H & TC Sur.
3399
Dry
41
I-14
Davisson &
Fitzgerald
No. 2 Lockett
Wildcat
Wilhelm Gotthardt
Sur. No. 2044
2970
Dry
42
L-5
Davis &
No. 1 Fuller
Davis, et al.
Wildcat
Fisher & Miller
Sur. No. 2785
2780
Dry
43
D-4
1{. Central
No. 1 Brosig
Wildcat
S.P.R.R.
Sur. No. 3
477 5
Dry
Drlg.
44
E-15
Dorie
No. 1 Wilhelm
Wildcat
Thomas Green
Sur. No. 2
4148
Dry
45
F-14
Dobbs &
Bradshaw
No. 1 Weity
Wildcat
w.
F. Cornelius
Sur. No. 2
4301
Dry
~-6
D-10
El Paso
Nat. Gas
No. 1 Cox
Wildcat
Sec. 35, Blk. 9,
H & TC Sur.
4778
Dry
47
E-9
Ellett &
Sartain
No. 1 Judge
Wildcat
Sec. 7' Blk. 9,
H & TC Sur.
4313
Dry
48
F-11
\{.
Central
Drlg.
No. 1 Jones
\ifildca t
TCRR Sur. No. 7
3892
Dry
49
G-10
Eltex Ltd.
No. 1 Martin
Wildcat
\ifilliam Hughes
Sur. No. 6
4381
Plugged
w
v•
Well Data (Continued)
H.ef.
Co-ord.
Operator
\{ell
Field
Location
T.D.
(Feet)
Name
No.
Status
50
G-10
Eltex Ltd.
No. 2 Martin
1-lil dca t
Sec. 174, Blk. 72'
T & NO Sur.
4053
Dry
51
G-10
Eltex Ltd.
No. 3 Martin
1-lildca t
Sec. 174, Blk. 72,
T & NO Sur.
4252
pry
52
G-10
Eltex Ltd.
No. 4 Martin
Eden
William Hughes
Sur. No. 6
4050
Plugged
_)...)
=:.-,
G-10
Eltex Ltd.
No. 5 Hartin
Eden
John Gibson
Sur. No. 1
4003
Dry
5h
F-9
Eltex Ltd.
No. 1 Metinger
Wildcat
GC & SF Sur. No. 1
4405
Dry
55
H-8
Eltex Ltd.
No. 1 Roberts
Wildcat
Sec. 147, Blk. 72,
T & NO Sur.
4070
Dry
56
H-14
Eltex Inc.
No. 1 Lockett
Wildcat
A. Robinson
Sur. No. 2043
3735
Dry
Jl
~'7
D-1
Fisher
No.
1 Moeller
\fildca t
Sec. 19' Blk. 1 '
\o/CRR Sur.
4145
Dry
58
C-9
Fisher
No. 2 Cox
Wildcat
Sec. 22, Blk. 9,
H & TC· Sur.
3850
Dry
59
B-10
Fisher
No. 1 Denis
Wildcat
L. c. De Renne
Sur. No. 2
4302
Dry
60
C-10
Fisher
No. 2 Denis
i{ildca t
Sec. 26, Blk. 9,
H & TC Sur.
4133
Dry
w
0\
lvell Da-ca (Continued)
Ref.
Co-ord.
"\{ell
Name
Operator
~o.
Field
Location
T.D.
(Feet)
Status
61
D-10
Fisher
Xo.
1-A Cox
lvildca t
Sec. 28, Blk. 9,
H & TC Sur.
J72J
Dry
62
B-10
Fisher,
e-c al.
Xo.
1 Denis
"Wildcat
Sec. 24, Blk. 9,
H & TC Sur.
4416
Dry
6J
D-7
Guffey
No.
1 Steakley
11ildca t
Conrad Kirschauser
Sur. No. 616
4212
Dry
64
E-7
Grimm
::--;o.
1 Lehr
11ildca t
Sec. 21 ' Blk.
4150
Dry
65
B-11
General
Crude
No.
1 Denis
Wildcat
Robert M. Williamson 4951
Sur.
Dry
66
D-9
Gordon
No.
1
Mcintyre
Wildcat
Sec. 2, Blk. 9,
J841
Dry
67
C-9
Gordon
No.
1
Judge
Wildcat
Sec. 1 ' Blk. 9,
H & TC Sur.
4260
Dry
68
0-9
Gilmore &
Smith
No.
1 Mitchell
Wildcat
J. B. Wallace
Sur. No. 10
2010
Dry
69
G-11
Vantex
No.
1 Jacoby
lvildca t
BS & F Sur. No. 70
4J05
Dry
70
L-4
Graham
No.
1 Hartgrove
\o/ildca t
E. F. Lewis
Sur. No. 88
2552
Gas Prod.
71
}I-5
Graham &
AB Tex
No.
1 McCullough
Wildca.t
Blk. 70,
Sec.
H & TC Sur.
J075
Dry
H & TC Sur.
1 0'
H & TC Sur.
so,
w
--J
- - - -
- -
- - - - - -
- - - - - -
Well Data (Con -c:inued)
H.ef' •
Co-ord.
Operator
IV ell
Name
No.
Field
Location
T.D.
(Feet)
Status
72
F-5
Gulf shore &
Tucker
No.
1 Trail
1Vildca t
Sec. 2, Blk. 1 1 '
H & TC Sur.
4110
Dry
73
G-6
Hatch
No.
1 Meixner
Wildcat
Sec.
1 51 ' Blk. 72,
T & NO Sur.
J665
Dry
74
G-7
Hatch
No. 2 Meixner
N. Speck
Sec. 151 ' Blk. 72
T & NO Sur.
3575
Oil Prod.
75
B-J
Hankamer
No.
1 Murphy
w·ildcat
German Immigration
Sur. No. J67
4520
Dry
76
E-J
Hayes &
\iatts
No.
1 Dodson
Wildcat
German Immigration
Sur. No. 118
4122
Dry
77
I-5
Holland
No.
1 Sansom
1</ildca t
Ludewig Steinbrink
Sur. No. 328
1408
Dry
78
I-6
Holland
No. 1-317 Sansom
\{ildc at
Sec. 317, Blk. 72'
J612
Dry
79
J-9
IIovgard &
Fitzgerald
No.
1 Stansberry
\{ildca t
P. :--lcGregor
Sur. No. 4
3204
Dry
80
H-5
Holland,
et al.
No.
1
Paint Hk.
J.
3662
Gas Procl.
81
H-5
Holland,
et al.
No.
1 Hays
Paint Rk.
Sec.
3683
Gas Prod.
T & NO Sur.
Hutcheson
:--r.
Goforth
Sur. Xo. 1 36
T &
1 35, Blk. 7 2'
:'\0 Sur.
c...:
-:.;:,
11ell Data (Continued)
~ef'.
Co-ord.
Well
Name
Operator
.:o.
1 Mciver
Field
Status
Location
T.D.
(Feet)
Paint Rk.
Sec. 307, Blk. 72'
T & NO Sur.
3436
Gas Prod.
82
H-4
Holland
No.
83
J-4
Holland,
et al.
No. 1 Hartgrove
Wildcat
T. F. Benge
Sur. No. 2
3796
Dry
84
J-6
Holland
No. 1 Sansom
Wildcat
Sec. 1 26' Blk. 72,
T & NO Sur.
3500
Dry
85
A-4
Union Prod.
No. 2 Campbell
Wildcat
J. Von Wameln
Sur. No. 1618
4510
Dry
86
A-4
Union Prod.
No. 1 Campbell
Wildcat
Rudolph Roko
Sur. No. 1617
5850
Plugged
87
H-6
Holland,
et al.
No. 1 Campbell
1vildca t
Sec. 137, Blk. 72,
T & NO Sur.
3769
Gas Prod.
88
F-13
Hovgard &
Fitzgerald
No. 1 Blaylock
Wildcat
J. A. Hall
Sur. No. 2
3720
Dry
89
K-7
Hovgard &
Fitzgerald
No. 1-B Glass
Wildcat
Conrad Meddeleger
Sur. No. 361
2225
Dry
90
K-7
Hovgard &
Fitzgerald
No. 1 Glass
11ildca t
T. F. Benge
Sur. No. 98
3085
Dry
91
G-7
Hovgard & •
Fitzgerald
No. 1 Cave
Wildcat
Carl Lehmann
Sur. No. 296
3810
Gas Prod.
\....)
'.0
Well Data (Continued)
Ref.
No.
Co-ord.
Operator
1vell
Name
Field
Location
T.D.
(Feet)
Status
92
I-10
Hovgard &
Fitzgerald
No.
1 Loveless
Wildcat
0. F. Wedin
Sur. No. 82
1750
Dry
93
F-13
Hovgard &
Fitzgerald
No. 2 Blaylock
Wildcat
J. A. Hall
Sur. No. 2
1942
Dry
94
B-5
The Texas Co.No. 1 Lindermann
Wildcat
A. M. Neill
Sur. No. 20
4795
Dry
95
I-10
Hovgard &
Fitzgerald
Wildcat
Indianola RR
Sur. No. 9
1750
Dry
A-14
Tucker Drlg. No. 1-C Henderson
Ha Jo
Sec. 24, Elk. 8,
H & TC Sur.
4430
Plugged
97
D-14
Tucker &
Henderson
No.
1 Canning
Wildcat
Sec. 50, Blk. 8,
H & TC Sur.
4197
Dry
98
J-3
Humble
No.
1 Ulrich
Wildcat
Gustav Schumann
Sur. No. 241
3653
Dry
99
G-7
Humble
No. 2 Cox
N. Speck
Sec. 1 49, Elk. 7 2,
T & NO Sur.
3690
Oil Prod.
-100
C-8
Humble
No.
Lightsey
Wildcat
EL & RR Sur. No. 3
4483
Dry
1 01
I-4
Humble
No.
1 Hartgrove
Paint H.k.
Ridge Goodrum
Sur. No. 132
3705
Gas Prod.
-102
H-h
Humble
No.
1 Sims
\-lildca t
\vilhelm Kramer
Sur. No. 309
5060
Plugged
No.
1 Spiller
0
lvell Data (Continued)
Ref'.
Co-ord.
\'fell
Name
Operator
No.
Field
Location
T. D.
(Feet)
Status
1 OJ ·
G-7
Humble
l\o.
1 Cox
N. Speck
Sec. 149, Blk. 72,
T & NO Sur.
3750
Oil Prod.
104
H-4
Humble
No.
1 Paint Rock
Paint Rk.
Edward Kramer
Sur. No. JOS
JJJ5
Plugged
105
K-6
Xelson,
Bunker,
Hunt
No. 1 Barr
Wildcat
Texas Trunk R.R.
Sur. No. 1 1
.3540
Dry
"i06
I-1.3
Johnson
No.
1 Lockett
Wildcat
Wilhelm Gotthardt
Sur. No. 2044
J566
Dry
107
N-J
Johnson,
et al.
No.
1 Hafner
lvildca t
Blasius Albrecht
Sur. No. 1850
JOOJ
Dry
108
0-11
Lamb & Ford
No. 1 Baker
1-!ildca t
Francis Wurzbach
Sur. No. 1669
1970
Dry.
109
P-11
Lamb & Ford
No. 1 Rice
Wildcat
R. \{. Hoskins
Sur. No. 18
2000
Dry
11 0
I-10
Lattner,
et al.
Xo.
1 Burk
Wildcat
Indianola R.R.
Sur. No. 1 J
2212
Dry
111
G-5
Luling
·No.
1 Dutton
iVildcat
Sec. 291 , Elk. 72,
T & NO Sur.
3510
Dry
11 2
K-6
Long Inc.
No.
1 Barr
Wildcat
HT & B Sur. No.
JJ05
Dry
.357
·-
......
Well Data (Continued)
Ret.
1
•
Co-ord.
Operator
Well
Name
~Jo.
-l " J
H-l~
11 L1
G-11
I ')
Field
Luling
No. 2 Houston
\v.
Lauderdale
No.
1 McTaggart
Paint Rk.
Location
T.D.
(Feet)
Status
Peter Bock
Sur. No. 288
3775
Oil Prod.
Wildcat
A. McGregor
Sur. No. 6
3906
Dry
& Straughn
115
G-4
Luling
No. 1 Houston
Wildcat
Peter Bock
Sur. No. 288
3755
Dry
116
G-7
Luling
No. 1-A Moore
Wildcat
Justus Pfannstiel
Sur. No. 280
3605
Dry
117
G-7
Luling
No. 1 Cox
Wildcat
Justus Pfannstiel
Sur. No. 279
3304
Dry
118
B-10
McLean
No. 1 Denis
Wildcat
G. 11. Sevier
Sur. No. 2
4757
Dry
119
C-12
Mabee Drlg.
No. 1 Denis
Wildcat
Sec. 39, Blk. 8,
H & TC Sur.
4500
Dry
120
G-13
Malco Ref.
No. 1 Green
Pfluger
J. H. Johnson
Sur. No. 68
2220
Dry
"1 21
K-4
Magnolia &
Sun
No. 1 Fuller
\hldca t
J. Men ten
Sur. No. 230
3500
Dry
122
M-7
Graham &
AB Tex
No.
Bryson
Wildcat
Sec. 56, Blk. 70,
H & TC Sur.
2670
Dry
Tucker,
et al.
No. 1 Henderson
w.
Sec. L~ 3' Blk. 8,
H & TC S·ur.
4J60
Oil
123
D-13
1
._
Eden
Prod.~
Well Da-ca (Continued)
D0 1.....
-
1 ~~ '+
r•
1 'l
c.--.__)
T-1 IC k:C
'
~t
\__.
125
;:J
Ll-
1
l
1
I
~-L
1
~ ..
Xo.
'
Fi_c>ld
h'cll
X arne
Operator
Co-ord.
.'. \ - u.
2 Hendccson
\\'
.
EcJ,•n
1
.L
"'' ')'I
I~
I
120
D- I ;
(<;
Chambers
X o.
11~·
i.l < l(__: <-L
I
3- 1 1
D-1J
L ( \ Ll 11
p'
'· ;d.
'
:-rc L<} Ll. n
r[l.lC j...:_(~
J-. J
,...... 0
•
1 -13
Chamber~
kilck;tL
'
:--:0. 1 Chambc t's
Xo.
')
__)
Henderson
\•,'ildc at;
\\'
.
Eden
I
.; .I '
T.D.
(Feet)
8
Blk.
TC S11r.
'
_,\. L ()\,- ,.
Sur. Xo. -'lJ7-1/2
~1.
:-:icc.
J9,
II & TC
. Do
lJlk.
9'
Sur.
Sur,
l{c'nnc
Xo. 1
Sec,
'I Ll '
\\'
H & TC
ct al.
,..,
.
(.;
"
~:~:L.. c~;}t1
~ :1:_-,
:-:) (. ('
iT
•
'T ;-) ;;: 1) l~ i. 11 s
i2G
Location
Blk.
Sur.
8'
Status
:12 !19
Dry
I;7 1 1
P lu,~GC! d
h200
Dry
.'1 J 90
Dry
ll1 26
Dry
Tucker Drlg.
Xo.
1 Kec__ic
\\ilclca_t
s. H. Hen cl (} r s on
Sur. ::-Jo. Jli
5150
Dry
0-9
:-JcGarr,
ct al.
:Xo.
1 Able
Hildcat
Heinrick Janszen
Sur. No. 17 1+7
2200
Dry
1J 1
F-9
Progress
:Xo.
2-A Speck
Wildcat
GC & SF Sur,
4J65
Oil Prod,
1J2
F-9
;..ridhurst
::\0 •
5 Speck
Speck
BS & F Sur, No,
J600
Oil Prod.
1JJ
P-l+
~Iinnick
Xo.
1 Brown
Wildcat
J. loJ'aldschmidt
Sur. No. 171J
2J72
Dry
1J4
H-11
:'-1urray
No.
1 Watkins
\oJ'ildca t
Rudolph Frei
Sur. No. 2065
J611
Dry
129
...-;.'
1 JO
/
No.
1
-
.....
w
Well Data (continued)
Hef.
Co-ord.
Operator
1vell
::\arne
)lo.
T.D.
(Feet)
Status
c.
Waring
Sur. No. 162
J512
Dry
Pfluger
Fisher & :Vliller
Sur. No. 2871
21 L~ 7
.Ory
1 \<iooten
1-iildcat
Soc. 166, Blk. 72,
T & ::-.JO Sur.
J57 Lt
Dry
1 Barr
Kildcat
Texas Trunk R.R.
Sur. No. 1 1
J220
Dry
"I Drinkard
Comm.
Wildcat
o.
F. Wedin
Sur. No. 82
3660
Dry
No.
1 Drinkard
Wildcat
J. v. Massey
Sur. No. 81
3569
Gas Prod.
Northern
Ord. , Inc.
No.
1 Henry
Wildcat
Bush Henry
Sur. No. 2
3365
Gas Prod.
H-12
Northern
Ord. , Inc.
No.
1
Lee
Wildcat
A. McGregor
Sur. No. 5
J450
Dry
H-11
Northern
Ord., Inc.
No.
1
Pfluger
1-Jildca t
F. s. Millard
3395
Gas Prod.
Owens
No.
21lt5
Dry
I-14
:--rurray
Xo.
iJ6
G-lJ
).1urray,
et al.
~o.
1 Lubke
1 J7
G-14
~ash-Cook
Xo.
1]8
K-5
;\olson,
Bunker
Hunt
~0.
1 J'l -q
I-10
Xorthern
Ord.
::\0 •
1 L~o
I-1 1
:0Jorthern
Ord.
1 q •j
I-11
It 2
1 ]_~ J
144
Location
l<iildca t
1J5
-i
Field
0-8
Lockett
\
Sur. No.
1-B \{hi two r th
lhldcat
172
F. J. McCarthy
Sur. No. 8
-
.;:-
Well Data (Continued)
Hef'.
1\-0.
-·
, J-
I Lj
Co-ord.
F-2
Operator
Pan Am
11ell
Name
No.
1 Sims
Field
IHldca"t
Location
T.D.
(Feet)
Sec. 544, Blk. 301 '
'-l-060
Dry
Status
T & NO Sur.
1 !t6
0-13
Plymouth
No.
1 Miller
lvildca t
Sec. 1774, Blk. 70,
H & TC Sur.
1830
Dry
147
0-13
Plymou-r;h
No.
3 Miller
Wildcat
J. 1v. Francis
Sur. No. 20
1770
Dry
I 48
B-12
Progress
No. 2 Henderson
lvildcat
M. Meyer
Sur. No. 900
3252
Dry
149
I-5
Progress
No.
1 Sansom
Wildcat
Ludewig Steinbrink
Sur. No. 328
3800
Dry
150
F-9
Progress
i'Jo.
1 Speck
Wildcat
BS
& F
3702
Dry
151
F-9
Progress
No.
1 Speck
lvildca t
GC
&
SF Sur. No.
1
J402
Dry
152
F-9
Progress
No. J Speck
Speck
GC
&
SF Sur. No.
1
J716
Oil Prod.
153
F-8
Progress
No. 4 Speck
Speck
B & SF Sur. No. 1
J8JO
Oil Prod.
154
F-8
Progress
No. 2 Speck
11ildca t
lvlichael Theis
Sur. No. 2002
J686
Plugged
135
B-13
Progress
No.
1 Henderson
\Hldca t
c.
H. Hearn
Sur. ~0. 108
4805
Dry
156
F-14
Turner
West
No.
1
Hildcat
J. H. Johnson
Sur. Ko. 4
J7J7
Dry
&
Davis
Sur. No.
1
-
vi
Well Data (Con-cinued)
ReF.
Co-ord.
Operator
lvell
Name
Xo.
Field
Location
T.D.
(Feet)
Status
157
C-2
Hheay &
Reynolds
No.
1 Kudlueek
lvildcat
James Caruthers
Sur. No. 182-1/2
4~-32
Dry
158
F-15
Reaves
~0.
1 ;'\ichols
Kildca t
EL & RR Sur. No.
143 3665
Dry
159
K-8
Humble
Xo.
1 Jones
lvildca t
Sec. 101 ' Elk. 72,
T & NO Sur.
3691
Dry
160
l\-15
Plymouth
~o.
2
liildca t
Sec. 25, Elk. 70,
H & TC Sur.
2125
Dry
1 61
H-13
Texrado
~0.
1 Lubke
l.fildca t
Jacob Weinheimer
Sur. No. 2090
J604
Dry
162
A-14
Tucker Drlg. No.
1-E He:::1derson
loJildca t
Sec. 22, Elk. 8,
H & TC Sur.
4982
Dry
163
D-5
Strake
No.
1-C Smith
Wildcat
German Immigration
Sur. No. 610
h7JO
Dry
164
E-1h
Pan Am.
No. 1-A Henderson
Ha Jo
Sec. 26, Elk. 8,
H & TC Sur.
h8J5
Dry
165
E-1h
Tucker Drlg. No. 1-D Henderson
Ha Jo
Sec. 25, Elk. 8,
H & TC Sur.
h520
Plugged
166
0-11
Snowden
No.
Wildcat
Godfrey Linzel
Sur. No. 176h
2795
Dry
167
A-14
Pan Am.
No. 2 Henderson
Ha Jo
Sec. 2~-' Elk. 8,
H & TC Sur.
4460
Plugged
~liller
1 Taylor
-
0\
lifell Data (Continued)
I<..=: f'.
Co-ord.
Operator
Hell
Name
No.
Location
T.D.
(Feet)
Status
\{il dca t
Sec. 99, Blk. 72'
T & NO Sur.
J465
Dry
Wildcat
EL & RR Sur. No. J
1500
Dry
Pfluger
Carl Sa tor
Sur. No. 2093
2215
Dry
lvildca t
L. Steinbrink
Sur. No. 336
1454
Dry
1 Able
lofildca t
B. Derleth
Sur. .No. 1808
2762
Dry
No.
1 Simpson
\{il dca t
Sec.
1 1 9 , Blk. 72'
T & KO Sur.
3479
Dry
i'Jo •
1 Stansoerry
Hildcat
I
"• ?-IcGre gor
3450
Dry
H. F. Hotheimer
L~ 1 1 6
Dry
168
J-7
The Texas
Co.
No.
16S)
I-6
Raiborn
No.
170
G-13
Ray
No.
1 McVey
17 1
J-5
Rock Hill
No.
1
I I ;...
7 ")
N-9
Sartain
No.
173
J-9
Saxon Expl.
17h
J-10
Saxon Expl.
·~
Field
1 Rainwater
Sansom
~Iciver
Sur. .No. 8
'i75
A-10
Seneca
No.
1
Chambers
Wildcat
Sur. Xo.
176
K-11
Sartain
No.
1 Stephens
'! 77
K-7
Saxon Expl.
No.
1
178
K-10
Saxon Expl.
1\0.
1 Stephens
Glass
439
\Vildca t
Fisher & :'-I iller
Sur. Xo. 2821
3050
Dry
\oiildcat
1'.
Bongo
Stu-. ;\ 0. 98
3125
Drj
\Vildca"L
.i\r1.11il
J002
Dry
}'.
S Lt l~ •
Schul t;z
:\o. 1 9 ~t 1
-
~
Well Data (Continued)
Ref.
Co-ord.
Operator
No.
Well
Name
Field
Location
T.D.
(Feet)
Status
"179
G-8
Sunray
Mid-Cont.
No. 9 Carter
N. Speck
Robert Lackey
Sur. No. 18
3673
Gas Prod.
180
0-8
Owens
No. 1-C Whitworth
1vildca t
Sec. 7, Elk. 70,
H & TC Sur.
2505
Dry
181
L-8
Seaboard
No. 1 London
Wildcat
Sec. 81 ' Elk. 71 '
H & GN Sur.
3158
Dry
182
0-10
Simpson-Fell No. 1 McCall
Wildcat
Sec. 1 2' Elk. 70,
H & TC Sur.
2565
Dry
183
L-5
Skelly
No. 1 Hartgrove
Wildcat
E. F. Lewis
Sur. No. 88
3283
Dry
181+
N-5
Skelly
No. 1 McCullough
Wildcat
T. J. Caswell
Sur. No. 44
3097
Dry
185
G-4
Skelly
No. 1 Trail
Wildcat
R. T. Trail
Sur. No. 2
3975
Dry
186
G-3
Sun
No. 2 Norman
w.
Heinrich Schumann
Sur. No. 261
3820
Dry
187
E-14
s.
No. 1 Henderson
1'lildca t
Sec. 63, Elk. 8,
H & TC Sur.
4093
Dry
188
E-14
Smith &
Tucker
No. 1 Henderson
1Hldcat
Sec. 24, Elk. 8,
H & TC Sur.
4839
Plugged
Minerals
Paint Rk.
....co
\fell Data (Continue d)
'"!")
£'
,-, (: l
•
Co-ord.
Field
Well
Name
Operator
Xo.
189
G-8
Sun
No. 3 Watkins
N. Speck
190
B-14
Smith &
Tucker
Ko. 3 Henderson
Ha Jo
Location
T.D.
(Feet)
Status
James Hughes
Sur. No. 158
3784
Oil Prod.
Sec. 25, Blk. 8,
TC Sur.
4659
:Pry
H &
1 91
G-7
Sunray DX
No. 2 Bartnecht
K. Speck
Carl Schartz
Sur. Ko. 276
3700
Dry
192
F-9
Spoor
No. 2 Speck
Wildcat
GC
3725
Dry
193
F-2
Texaco, Inc. No. 1 Sims
Wildcat
P. H. Brooks
Sur. No. 2
4270
Dry
194
G-7
Southern
Petr. Expl.
No.
1
Bartnecht
\Hldca t
Henry Robertson
Sur. No. 9
3922
Dry
195
K-6
Stewart
No.
1
Barr
\vildca t
E. Miller
Sur. No. 358
3205
Dry
196
H-4
Sunray
Mid-Cont.
No. 1-A Houston
w.
Paint Rk.
Ridge Good run
Sur. No. 2
3790
Plugged
197
G-4
Sunray
Mid-Cont.
No. 2 Houston
w.
Paint Rk.
Sec. 1 ' Blk. 72,
-'- & NO Sur.
3853
Oil Prod.
1<)8
H-3
Sun
No. 1 Waide
Wildcat
J. Glaesener
Sur. No. 257
2455
Dry
199
H-J
Sun
No. 1 \{ardlow
lvildca t
Johann Jahn
Sur. No. 256
3862
Dry
&.
SF Sur. No. 1
rn
,_
\0
1vell Data (Conr,inued)
Bef'.
Co-ord.
\.Jell
Name
Operator
Xo.
1 Norman
Location
Field
w.
Paint Rk.
200
G-4
Sun
No.
201
G-7
Sunray
};Iid-C on t.
No. 1 Carter
N. Speck
202
G-8
Sunray
;.Iid-C on t.
No.
1
Kitchens
N
20J
J-5
Sun
No.
1
Core Hole
Hildcat
20h
D-1]
Sun
No.
1 Henderson
\hldca t
.
Speck
T.D.
(Foet)
Sr,atus
s.
R. Goodrum
Sur. No. 256
J546
Oil Prod.
Sec. 157, Blk. 72
T & NO Sur.
J992
Dual Oil
Plants & Bacon
Sur. No. 4
3698
Dual Oil
Sec. J50, Blk. 7 1 '
H & GN Sur.
1385
Dry
Sec. SJ, Blk. 8,
4210
Dry
Sec. J55, Blk. 71 '
1350
Dry
Sec.
J975
Gas Prod.
H & TC Sur.
205
K-5
Sun
No.
2 Core Hole
\hldca t
H &. GN Sur.
206
F-10
Sunray DX
No.
1
Ellis
s.
Speck
J 1 ' Blk. 9,
II & TC Sur.
207
F-10
Sunray
:'-lid-Cont.
No.
1 Hall
s.
Speck
Louis;:l Robbins
Sur. Xo. 1
4065
Gas Prod.
208
F-11
Sunray DX
Xo. 2 Hall
s.
Speck
Lr olln Gibbs
Sur. Xo. J
J920
Gas Prod.
209
D-1J
Sunray DX
No.
\vildca t
Sec. 52, Blk. 8,
4255
Dry
1
Carming
H & TC Sur.
\.~
c
l·lell Data (Continue d)
I{e :f.
:;:..; 0
Co-ord.
Operator
Field
Well
Name
0
Paint Rk.
Location
Status
3830
Oil Prod.
Sec.
Elk. 8,
H & TC Sur.
ss,
4)20
Plugged
Ridge Goodrum
Sur. No. 2
3760
Oil Prod.
Carl Schartz
Sur. No. 278
3730
Dual 0.l~1
Eden
Sec. 54' Blk. 8,
H & TC Sur.
4230
Oil Prod.
No. 5 Henderson
IV. Eden
Sec. 4), Blk. 8,
H & TC Sur.
4161
Dry
Sunray
Mid-Cont.
No.
w.
Paint Rk.
Sec. 1 ' Blk. 72,
H & TC Sur.
3828
Dual Oil
G-4
Sunray
Hid-Cont.
No. 1 West
u.
Paint Rk.
s. R. Goodrum
Sur. No. 2
3.542
Dry
218
G-8
Sunray
l\Iid-Cont.
No. 6 Carter
N. Speck
Robert Lackey
Sur. No. 18
3743
Gas Prod.
219
G-7
Sunray
::'>Iid-Cont.
No. 7 Carter
N. Speck
Sec. 157, Blk. 72'
T & NO Sur.
3770
Dual Oil
220
G-8
Sunray
:'>licl-C on t.
~o.
r, Carter
N. Speck
Sec.
3737
Dual Oil
2'10
G-4
Sunray
:-1id-Con t.
No. J Houston
\{.
2"I
D-12
Sunray
Hid-Cont.
No. 1 Henderson
lvildca t
2~2
H-4
Sunray
Nid-Cont.
No.
w.
213
G-8
Sunray
Hid-Cont.
No. 2 Cox
N
2 1 L~
D-13
Sunray
Mid-Cont.
No. 3 Henderson
w.
215
D-12
St:nray
Mid-Cont.
216
H-4
,.,
')
r:-
~
I
~I
I
1
Houston
1 Houston
"-
Paint Rk.
. Speck
Sec. 1 ' Elk. 72,
T & NO Sur.
T.D.
(Feet)
157, Blk. 72'
T & l\0 Sur.
\_,I
_.
Well Data (Continued)
R.e :f.
Co-ord.
Operator
Xo.
·vrell
Name
Field
Location
T.D.
(Feet)
Status
221
G-8
Sunray
?-Iid-Cont.
No. J Carter
N. Speck
Sec. 1 -7 f Elk. 72'
T & NO Sur.
3707
Dual Oil
222
G-8
Sunray
}Iid-Cont.
No. 4 Carter
N. Speck
Sec. 157, Elk. 72,
T & NO Sur.
3725
Dual Oil
2')-_)')
G-8
Sunray
Nid-Cont.
No. 5 Carter
N. Speck
Sec. 157, Elk. 72,
T & NO Sur.
3'720
Dual Oil
22L~
G-6
Sunray DX
No. 1 Trail
Paint Rk.
Sec.
3720
Dry
I
.)
153' Blk. 72,
T & NO Sur.
0 ') t:':
h.-C-..)
G-7
Sunray
Nid-Cont.
No. 1 Cox
N. Speck
Carl Schartz
Sur. No. 278
3705
Dual Oil
226
G-8
Sunray
Hid-Cont.
No. 2 Kitchens
N. Speck
Plants & Bacon
Sur. No. 4
3705
Gas Prod..
227
G-7
Sunray
Jvlid-Cont.
No. 3 Cox
N. Speck
Carl Schartz
Sur. No. 278
J71J
Dual 0 & G
228
G-8
Sunray
Mid-Cont.
No. 1 Kitchens
N. Specl<
Robert Lackey
Sur. No. 18
3730
Oil Prod.
229
D-12
Sunray
Nid-Cont.
No. 4 Henderson
w.
Sec. 54, Blk. 8,
4226
Oil Prod.
230
G-7
Sunray
:-.1id-Cont.
No. 1 Carter
3710
Dual Oil
Eden
H & TC Sur.
N. Speck
Carl Schartz
Sur. No. 276
vl
i'V
1vell Data (Continued)
Ref.
Co-ord.
\{ell
Name
Operator
~o.
231
G-8
Sunray
Mid-Cont.
No. 8 Carter
Field
Location
T.D.
(Feet)
Sec. 157, Blk. 72'
& NO Sur.
J680
Oil Prod.
Wildcat
Friedrich Schilling
Sur. No. 286
4000
Dry
K. Speck
Status
rn
1.
232
G-4
Sunray
;-Iid-C on t.
No.
2J
. .~ J')
D-13
Sunray
)fid-Cont.
No. 6 Henderson
Wildcat
Sec. 54, Elk, 8,
H & TC Sur.
4075
Dry
23L~
E-13
Sunray
Mid-Cont.
No. 2 Henderson
Wildcat
Sec. 70, Elk. 8,
H & TC Sur.
4240
Dry
1 Sanger
APPENDIX B
Subsurface Map Data
Re1"',
No.
1
2
J
L~
5
6
'"1
I
8
9
10
1 "j
1 ')
' r-
- ,.,
i _)
·: !-!
15
16
17
18
19
20
2'1
22
23
El, K.B,
(Ft. :.1.S.L.)
167l~
1860
1724
1692
2070
1620
1585
1585
1616
1582
1534
1565
1620
1646
2131
2311
2314
1604
1626
1612
1767
2007
1561
El, Base
El. Base
Coleman
Palo
Junction
Pinto
(Ft. M.S.L.) (Ft. M.S.L.)
379
297
602
454
1001
1267
1189
1212
1181
1_348
1164
1178
1196
803
993
972
117 2
1080
1562
830
151 2
1 02L~
-1529
-1637
-1231
-14_34
852
405
510
- 480
- 524
- 306
56
530
- 530
- 511
-1034
-
Isopach
Data
Sand
Isolith
Data
No.
Discrete
Sands
Base
Palo Pinto
To
Top Capps
Isopach
Data
Lime
Isolith
Data
Clas-cic
Ratio
Data
Top Capps
To
Top Ellenburger
J67
488
360
334
426
.355
0
0
505
.355
1j2.L~
0
0
78
58
0
0
13
4
475
512
258
380
265
287
108
1I 1 . 3
1/1.3
1.4
355
50
5
385
32.5
335
362
5
0
4
5
4
12
364
365
396
338
119
1 •j 0
156
118
2. ·1
2.3
1.5
1.9
425
73
0
55
50
32
88
315
210
1/2.0
639
100
JO
323
LJ-5
4
2
297
97
2. 1
- 161
314
70
25
5
1
213
118
1I 1 . 2
-
707
\J!
+·
Subsurface Map Data (Continued)
"' •
,...
.1:\.e~.
No.
2h
...:. ;;
~-
26
?'7
•- I
28
29
JO
31
'l ')
J'-
33
34
35
36
J7
~)8
J9
L~o
41
Ll·2
·'-~ 3
1, ,•,
'+~
•.
hs
it-6
L~.I '7
0
l..j 8
49
El. K. B.
:YI.S.L.)
(Ft.
159L~
1670
1629
2101
2103
'171 1+
1796
2093
2088
1737
1696
1683
1857
1828
1979
2078
2307
2091
1609
1675
2374
228L~
1979
1888
2175
2166
El. Base
Coleman
Junction
(Ft. M.S.L.)
El. Base
Palo
Pinto
(Ft. M.S.L.)
1162
428
963
1045
1033
744
779
1053
871
727
- 524
-1460
- 776
- 837
1555
1179
917
1246
1069
297
956
1008
567
568
845
807
-1073
947
--1149
-1104
-1117
-1158
-1177
41
560
- 991
484
- 61-t6
--1612
-
911
8J1
-1356
-1J26
-1015
-1021
Isopach
Da-ca
Sand
Isolith
Data
No.
Discrete
Sands
Base
Palo Pinto
To
Top Capps
Isopach
Data
Lime
Isolith
Data
Clas ·ci c
Ratio
Data
Top Capps
To
Top Ellenburger
326
343
357
so
415
333
125
10
6
380
338
349
362
375
370
328
65
0
3
0
1
I 1•s
515
468
305
128
1
2
250
430
130
235
1I 1 . 1
1;-·' ')
80
5
305
120
1.5
0
462
247
1I 1 . 1
58
98
0
3
2
2
4
5
197
77
1.6
80
70
5
3
6
4-L~o
68
1 35
L~6o
60
538
230
211
373
J68
383
170
121
22J
21J
112.5
112.8
111. J
1I 1 . s
111. 1:
318
173
1I 1 . 2
365
363
L155
L~ 3
L~o
itS
428
0
h3L~
S6
425
40
5
4
0
3
2
2.7
.
'-•
\.i1
vl
Subsurface i\'Iap Data (Continued)
R.ef.
v
.i.\0.
50
r; 1
52
53
slt
55
~
I'
~~
'7
)0
_}/
58
59
60
61
62
6J
6h
65
66
67
68
69
70
'71
, ....
"'?
73
71~
75
El. K.B.
'"'+ M.S.L.)
\
.1.
..., •
2179
2162
2171
21 L~s
1964
1982
2128
17 37
1894
20L~2
1970
1951
1994
1757
1785
2066
1900
1871
1770
2157
1685
1603
17 41
1818
1798
1674
El. Base
El. Base
Palo
Coleman
Pinto
Junction
(Ft. M.S.L.) (Ft. M.S.L.)
819
819
811
810
694
776
1210
JOJ
488
4J8
474
564
418
L~o4
509
482
475
466
1565
934
1009
11 4J
544
6'-i·7
700
169
-1016
-1013
-1022
-1027
-1170
-1024
- 537
-1636
-1416
-1528
-1460
-1359
-1531
-1488
-1398
-1481
-1418
-1451
40
- 908
- 710
- 563
-1324
-1212
-1172
-1780
Isopach
Data
Sand
Isolith
Data
No.
Discrete
Sands
Isopach
Data
Lime
Isolith
Data
Clastic
Ratio
Data
Top Capps
To
Top Ellenburger
Base
Palo Pinto
To
Top Capps
11 0
92
95
72
88
35
105
425
421
4J2
422
L~o 1
387
J6J
352
473
495
490
460
490
399
407
498
485
453
76
110
105
50
83
0
0
103
0
0
421
50
J44.
350
J60
J60
390
25
0
37
23
0
0
10
3
8
5
4
2
5
0
5
5
5
J
J20
324
315
321
375
J44
224
190
174
190
201
225
174
89
1I 1 . s
111.2
1I 1 . s
1I 1 . 7
1I 1. s
1. 0
1.5
6
J65
44.6
420
395
230
256
245
255
1I 1 . 7
111.4
1I 1. 4
1I 1. s
405
245
1I 1 . 5
4
JOO
160
1I 1 . 1
2
0
1
1
0
400
450
115
265
1I
2.5
552
322
1I 1. 4
0
0
6
0
0
1 • L~
\..;1
0\
Subsur.face
Ref.
~o.
"['"
..u_t. 1\: • B •
-~ L • )
( F c • ...vi . ~.
l'.~l. Base
Colem&n
Junction
(Ft. ;.: • S • L. )
80
: G3 i
1G96
iS57
2055
1 7! J
6
761
792
1088
708
S1
~ 70~,
689
76
-~
'
;
'
I
?S
~'9
-
K?
'
'8"
_)
....
0'-1-
;)5
s(s
87
t~8
(j9
90
91
cp
- .....
~)
3
9L~
95
96
97
98
99
';00
101
,....,
..:
'">'!
_) j
"""'
665
1652
17 16
1729
17:9
17 L~2
2165
1749
80!1
....
1 ,·
1
1
j
'! 1 /
1
I
0
18 3I1
2101
21 ~ J
1 7 ~~0
2082
2291
2234
163h
'j 850
i 837
1661
876
:29
1 35
662
950
969
1000
708
109J
973
257
1109
634
802
801
665
El. Base
Palo
Pineo
(Ft. ~I. S. L. )
~:ar)
D<t ta (Cont:inued)
Isopc-.ch
D<~ra
Sand
Isolith
Data
Xo.
Discrete
Sands
Isopach
Data
Limo
Isolith
Data
Clastic
Ratio
Data
Top Capps
To
Top Ellenburger
Base
Palo Pin-co
To
Top Capps
-1511
362
0
0
1196
31 1
1I 1 . 7
-1008
- 665
-11 22
- 1 1 l,ll
-11 30
- 978
J62
hos
]"15
2r)
,_
1
7
0
:,26
0
!128
2116
263
111 . l:
1/1.6
-1 811
-1826
-115 J
391
529
5h1
h20
205
126
289
J 11
250
1 . l~
2. ·1
111.2
1 I 1 . lr
1I 1 • 5
-
8hl~
3!~9
95
0
0
373
J8
2
J65
70
20
5
L~o5
I •-1-)
I,
'-i·
389
345
0
6
385
2
1185
9L~5
l~hJ
35
0
1 JO
- 752
387
J77
65
JO
5
- 1 1 11
J
370
225
1I 1 . 6
-1665
403
37
J
L187
327
1I 1 . 5
-1436
-111 4
-1022
-1160
513
90
71
7
6
2
J
3
0
-
~33
- 1 L~91
661
-1149
L16h
372
376
4J7
355
?-
'-J
L~8
58
0
J
288
21J
L~69
25L~
1I'~.u0
1I 1 • 2
455
490
260
260
1 1• 1
1I 1 . J
I
\.;:
-J
Subsur:face
P..e T.
No.
102
1Ci ~}
1 ol~
'105
10G
10'?
108
109
i 10
1 I .,
1 '12
11J
1 1 11
i 15
1
I
IG
'1 1 7
1
I
IX
1 19
1:20
1 0 1
I·- I
'---
1 'J ')
-1
, I ')
I •'- )
El. K.D.
(Ft. rvr. s. L. )
169 I
1 tiG(;
17 :1'3
1 c;5 5
21 2 '3
15"17
1 90(~
1 87 :~
~2 111 )
'17 .. 15
1()()?
1710
21 J.'i
1"""7I
188 'j
1So·11
1901
21 JO
210J
1622.
1r) 7 .'t
I~
;! 1 ~)
J
't
:! 1 K~l
1 ;zs
!26
;:o:~~
21 15
127
1980
1
•
I)
~-t
~~1. Dase
El. Base
Coleman
Palo
Junction
Pinto
(Ft. N.S.L. ) (Ft. H.S.L. )
() <> I
() )7
656
99·'1
1 ;2 :2 1
I 1 10
17 5it
1 o;!R
():2<)
<) :2.'1
(i i 0
C)(;
J,
) C) I
(>ot;
()()\_)
')(, ()
()()
')
1 0') -)
9:-~2
I I q !t
(> (_; 1
{; )7
. , 7 ~~
')07
lj 10
- 1 1 ().\
-1 159
-1 1G2
- ?62
512
617
159
178
-12:2'}
-
-
I
81:--i
·-
~Iap
Daca (Continued)
Isopach
Data
Sand
Isolith
Data
Ko.
Discrete
Sands
Baso
Palo Pinto
To
Top Capps
y~
I
J85
J59
J7J
J67
J.'lS
80
J
~10
')
~. 8
!j
8)
JO
6
.';Q
5
0
0
J
lO
rJ
"-
)
Y>~2
o).'t
!, ~:n
7t)
-1.'2_)0
'J)S
!)
0
-1 I .'; 9
1 lu6
'1u 5
:!o
1
-
·~
-- 1(l :,
- 1TJ.)
~!
-
K·'i~
10n
1
-1
- I !1 ')2
-- i \ ') 1
- 1)55
I.,,..~
•-
)
I
~---;·,
0
/:.76
271
,
J'l 5
2JJ
lj GJ
I
I
,, lJ
5
J
1
I
')
-
282
''
·- '
' 1~9
.j.li)
l () ')
~.:;;
.', 0 1
·-
)
'-
...
.';) j
: .,;J
I
·--
: . ·"
')
: \ i
~
()
;\))
,....:..
-:
(.)
·~~~
'
·i
,·_,
'
)
I
,;
)0•)
·, ~ j
·'19:,
.'•95
;o:.!.
·I
12~
8
');:---;
-'12K
")-..":"
')
.,
·~
)
til
·I
'
:-: ') f,
• u
,:._
1I:
·~
.~~ ) _)
()
., . (I
' ')
)
.
:! • c;
~
) _j
I
.J
I
1/:
I_)
,-)--
)
)
I.
1
ib
1
i
i
_)_}
l ~.
')()0
A
')"":
'))
)\)0
Clas::-ic
I< a "t j_ o
Data
buq~;er
()
r, ' ) -
Lime
Isolith
Data
Top Capps
To
Top Ellen-
J~29
'3 . , ::
y; )
Isopach
Daca
I
')
. \)
;I: . -'
,I .
I
'
•
(I
'
.. ,
I
il::.o
•I·
' ..
-)
'-.
'l.
Subsurface Map Data (Continue d)
Ref.
No.
128
1 29
130
1 31
1')')
133
1 Jl~
135
136
•j 37
138
1 J9
1ho
141
j-
11~2
143
1l~ L~
1 LiS
1Lr6
1
I
L1- '7
<
1 Lt8
1~9
150
.i 51
152
153
El. K.B.
(Ft. M.S.L.)
2193
1837
1705
1986
19 3~·
1452
2067
2126
2096
2132
1623
2080
2087
2099
2072
2086
1729
1711
1951
1954
2062
1710
1955
1960
1954
1929
El. Base
El. Base
Coleman
Palo
Junction
Pinto
(Ft. M.S.L.) (Ft. M.S.L.)
671
191
1560
706
700
979
1 JJ8
1041
1157
1095
1071
1OLJ.7
1050
10L11
1509
LJ.1 6
5Lr4
785
702
695
693
684
Isopach
Data
Sand
Isolith
Data
Base
Palo Pinto
To
Top Capps
492
478
357
395
410
Jlt5
403
Jlt4
143
28
68
87
130
5
55
70
-
393
330
405
400
394
J88
J80
-
792
- 705
- 698
- 721
- 7Lj8
- 774
Isopach
Data
Lime
Isolith
Data
Clastic
Ratio
Data
Top Capps
To
Top Ellenburger
-1242
-1750
45
- 1 1Lt9
-1146
- 26J
- 833
- 380
6L~J
No.
Discrete
Sands
8
2
5
L~L~ 5
285
1I 1 . s
li.
373
21J
1I 1 • 3
J
5
269
218
14L~
11 3
1I 1 • 2
1I 1 • 1
100
6
252
11 2
1.3
70
90
80
4
6
295
293
160
11 8
1I 1. 2
1.5
423
233
1I ' 1 . 2
J80
210
1/1.2
5L~
45
3
1
4
4
J
26l.J.
96
-1 Ll·9LJ.
317
366
330
-1015
-1165
-1166
-1148
-1184
355
405
0
100
0
5
408
397
1 LrO
6
6
s·1o
105
~~1
\.?
Subsurface Hap Data (Continued)
Re:f.
No.
--4
l)
15.5
·,5o
157
ij8
159
160
El. K.B.
(Ft. M.S.L.)
196L:
2102
21()0
1725
2802
1862
199h
1 61
205L~
162
J6J
2203
173h
2303
2300
1882
2328
1751
1827
2095
1709
1828
208J
201+5
19h8
1970
1705
1973
1953
164
165
166
167
168
169
.170
171
172
17'>
,_j
1 7 I,.
17.5
176
177
178
179
El. Base
El. Base
Coleman
Palo
Jtmc-i:;ion
Pinto
(Ft. M.S.L.) (Ft. M.S.L.)
729
)LIS
1006
248
1098
1046
1 11 7
578
J86
633
660
1697
-1136
-1LI-so
827
-1681
733
683
362
716
-1462
-15 J6
-1391
-1390
61
- 1 L~ 27
809
-
Isopach
Data
Sand
Isolith
Data
No.
Discrete
Sands
Base
Palo Pinto
To
Top Capps
395
501
L~46
Isopach
Data
Lime
Isolith
Data
Clastic
Hatio
Data
Top Capps
To
Top Ellenburger
115
84
90
0
70
165
25
60
106
2
5
3
0
4
3
2
5
7
392
207
564
195
260
175
232
436
1I
J82
257
102
361+
11 0
11 0
100
82
261
3SJ
282
1I 1 • s
1l2o6
1l2o8
189
64
2.0
1 9
1.0
1I 1 • 8
111 • 3
0
357
430
420
283
390
535
327
534
510
290
520
347
167
115
0
95
0
12
6
0
0
331
136
1. h
172
722
707
328
380
356
58
65
55
2
7
4
251
251
262
71
.126
107
3o5
1 0
1.4
J45
773
337
-11 4-2
341
Ll-02
360
390
28
1i 0
3
5
199
64
2. 1
8
l+S
2
185
55
2
9J6
791
-
797
1h54
10h0
1075
359
134-J
977
1328
685
-
L~88
1• ~
111. J
L8
6
10~8
0
0
lj.
c;-,
0
Subsurface :Vfap Data (Continued)
E,.L. K.B.
Ref.
1.\0 •
180
1 K1
; 32
J
~~ J
: 8'+
185
186
!87
i88
~89
j 90
-; 91
192
193
-~
9 1-t
lc:; _)
196
197
'198
~99
200
201
202
203
204
205
IF~
\
v.
:VI. S • L. )
1GL~G
1733
1956
1656
16 ·1 J
1731
1693
2327
2279
1963
2380
1900
1972
1937
1868
1645
1720
1?25
1 62~9
1 652
1729
1876
'1912
1721
2193
17 31
El. Base
El. Base
Coleman
Palo
Junction
Pinto
(Ft. :VI. S. L. ) (Ft. :Vl.S.L.)
1546
1097
1616
1 oL;-4
1197
545
561
893
6Lt1
690
668
642
687
434
668
606
595
602
597
579
673
704
817
687
864
62
- 632
18
649
- 1168
-1307
-1267
-1006
-1Lt11
-11Lt7
-1352
-119 5
-117 3
-1469
-1187
- 750
-1215
-1245
Isopach
Data
Sand
Isolith
Data
No.
Discrete
Sands
Base
Palo Pinto
To
Top Capps
3~2
347
358
462
515
395
518
370
Lto5
344
375
365
357
353
3
6
6
6
3
75
96
52
125
50
120
0
55
62
5
3
11
2
6
0
1
JO
0
2
0
-1253
-1251
-1149
-1125
390
387
388
0
57
36
0
1
2
-1217
500
17.5
8
36L~
Lime
Isolith
Data
Clastic
Rat.io
Data
Top Capps
To
Top Ellenburger
25
155
70
40
35
15
381
327
360
Isopach
Data
1
6
~~
265
274
205
375
435
450
499
248
395
85
74
75
140
100
250
329
178
265
2. 1
2.7
1.7
3.4
111.3
1I 1 . 9
112.5
112.0
357
2h2
112.
520
390
315
260
1I 1 • 5
112.0
L~68
457
288
277
1I 1 • 6
1I 1 . 5
501
341
112. 1
360
230
1I 1 • s
328
223
112.
1•
7
I
1
...C\
Subsurface Map Data (Continued)
Ret~.
,...,
HO.
206
207
208
209
210
11
212
21J
214
215
216
~~
217
218
219
220
22"1
222
223
~2 ?4
225
' ) r) ( '
,._,:_
. ..)
;!2.~?
0')0
?.... ,_LJ
229
230
23i
E.,..... K.B.
(Ft. M.S.L.)
2084
2073
2125
2221
17 3LJ.
2157
1687
1899
2202
2198
1701
17h7
1962
1910
1923
1902
190L1
1917
1771
1871
1939
191LJ1968
2198
1860
1938
El. Base
El. Base
Coleman
Palo
Pinto
Junction
(Ft. M.S.L.) (Ft. M.S.L.)
688
735
773
751
566
709
610
703
659
660
609
587
691
669
68ll.
679
672
673
616
681
716
70L1-
708
651
664.
667
-1174
-1127
-1085
-1159
- 1 2iJ-6
-1188
-1223
-1116
- 12LJ. 3
-1267
-1224
-12118
-1128
-1170
-1142
-1153
-1152
-1156
-1229
-11L1-1
-1094
-111 6
-1108
-1247
-1166
-1162
Isopach
Data
Sand
Isolith
Data
No •
Discrete
Sands
Clastic
Ratio
Data
200
1I 1 . .J
L~80
21l.J
307
250
285
112.7
111.9
1IJ.J
1I 1 . 5
465
260
111.3
Top Capps
To
Top Ellenburger
Base
Palo Pinto
To
Top Capps
439
435
468
486
350
490
355
395
479
4-7 5
365
350
392
378
391
389
396
395
3h5
383
391
390
388
478
386
392
Lime
Isolith
Data
Isopach
Data
110
65
68
78
7
3
J
1--t
329
330
294
lJ-67
105
32
38
1 4LJ.
150
65
26
IJ-8
LJ-5
66
70
80
52
35
25
lj 4
...
l·?_
58
1 JO
h5
86
3
3
3
7
9
2
1
4
1
3
3
3
4
2
2
2
2
3
8
1
5
325
C\
i\)
Subsurface Map Data (Continued)
Ref.
No.
232
2JJ
234
El. K.B.
(Ft. ~1.S.L.)
17 36
2184
2157
El. Base
El. Base
Palo
Coleman
Pinto
Junction
(Ft. M.S.L.) (Ft. M.S.L.)
563
671
772
-1274
-1 211
-1123
Isopach
Data
Sand
Isolith
Data
No.
Discrete
Sands
Isopach
Data
Lime
Isolith
Data
Clastic
Ratio
Data
Base
Palo Pinto
To
Top Capps
Top Capps
To
Top Ellenburger
353
495
480
437
252
1/1.4
290
215
1/2.9
193
160
8
8
--
0\
w
VITA
GrGt.:,'OL'Y Paul KL'aus was
Ohio.
He
parochial
Science
t~eccivcd
schools
deGree
1965.
April,
his
of
born cTanuary
primary and
that
the
for
The
i;hc
a
Master
in the Department
of Geology at
the
the
require-
emp.loyed in.
the Hcsearch Deprrrtment
of'
1960 to Soptember,
and by the Univorsi.ty of' Dayton Rosearch Tnstitute
On
1962 to September,
April 8,
They have
age
Th.c
ur
was granted a
of' Science degree.
author was
f'torn Scph'tllber,
.1'1arl-c,
Bachelor of
completing
Standat'd Hegister Company f'rom Narch,
1962,
from
lli1iversity of Dayton in
University of l\1issouTi at Rolla while
mcnts
awarded a
In September of that year he
teaching assistantship
19h0 jn Dayton,
secondary education
city and was
in ecology by
1J,
two
1965.
1961 he 1vas married to Loretta Taulbee.
children,
Gregory Stephen,
age
5
and Drunian
J.
<tuLilot'
.L:3
a
mcml1er of
Pc:l:t'Olc'l.\J!l Gcoloe;i;:;ts,
Cc011hysicists,
Sie:;tJia Gai!lma
thr)
Lhc
tho Amecican Assoca.tion
Society Ol Exploration
Society oJ' Automotive Ene;ineers and
J<~psilon.
Upon gt'adlla t i llG hl?
and Hc.f'itti.ng ComlJ;tny
1vil l
be
t?Tnployf)<i by tlw
in Lo:::> Angeles,
CaLil'ot'nia.
Humble
Oil
.....,.
J
K
-
p
0
N
PLATE Ill
ISOPACH AND
MAP
UTHOFACIES
2
OF THE
STRAWN SERIES
CONCHO COUNTY, TEXAS
...
0
.. . .. ..
4000
1000
11000
'-----~~.~~~~.~.~--~
COli TOUR IIT[RVAI. •U
~[T
3
4
......
7
••••
••
...
...
....
..
10
II
I
I
I
'
I
I
I
I
00
I
I
I
/
\
I
\
/
\
' ....
14
--
15
A
8
c
F
.
I
L
_,
I