The Daily Ardmoreite. [volume] (Ardmore, Okla.) 1893-current, 1922-06-30
Report Issued
On Ell Dorado

An exhaustive study of the I'll Dorado
tArk.) oil and gas field, giving the
history of the field and drawing con.
clusions as to possible extensions, has
Just come from the press in booklet
form. The publication was issued un
der the joint auspices OF the United
states Bureau of Mines, the United
ates Geological Survey, the Univer
SKY of Arkansas and the Arkansa.
State Bureau of Mines. Manufacturer
and Agriculture.
The booklet discusses the history OF
development of the field with recon-
mendations as to drilling methods. wa
ter condition, protection in case OF
deeper production, production record
production methods and many other
features of the field. Numerous illus
trations and maps. including a large
ownership map OF the field, are con
tained in the publication.
The first well that produced com
mercial quantities of oil in the FL Do
rado field was brought in Jan. 10. 1921
Up to Nov. /, 1921. the field had pro
duced approximately 10000 900 barrels
or oil from a proven area OF about 4
$40 acres, an average OF 2,150 barrels
TO the acre. The maximum daily flow
of the field was about 1900 barrels
which flow was recorded for few days
in August 1921. The production de
creased TO about Al 900 barrels day by
the middle OF October. 1921. The ini
tial production Of the oil wells ranged
from only few barrels TO $4,000 bar
rels Of oil day and the gas wells up
to maximum of 100000 900 cubic feet
of gas daily.
The El Dorado field furnished the
first commercial production OF oil for
the state of Arkansas Gas had been
produced since about 1905 in the Fort
Smith gas field, which lies near the
Ell Dorado. The Arkansas legislature
because Of this gas production, passed
an act in 1917 which dealt with the
conservation of oil and gas. FL Dorado
the first oil producing field of com
mercial worth in the state. therefore
lations OF the Conservation Commits
sion.
The following regarding possibility
of similar fields is quoted from the
booklet Parallel belts of faults sep
arated my areas almost unfaulted may
do elsewhere in the mid-continent re
gion, notably in northern Oklahoma
and southern Kansas. IL such v bel,
exists within few miles of El Dorado
the other favorable conditions that
combined to produce the El Dorado
pool probably exists there and a field
much like the El Dorado field may be
developed"
Detiled analyses of the oil from the
lei Dorado field show that its gravity
is about 3s.2 Baume and II contains
about 30 per cent Of gasoline and naph
tina and ~ per cent of Kerosene. the
remainder being gus oil and lubricatins
oil. The producing sand Of the III
Dorado field is the Nacatoch sand. II
Is about $50 TO 1870 feet thick In the
field, the upper part being principally
sand. but tho formation also includes
shaly sandstone and streaSs OF gumbo
and shale. In all the pay streaks oil
seems to be present only In the topmost
few feet of the sand and IL everywhere
underlain by salt water. Salt water
Is also closely associated with gas In
the gas.yielding part of the field.
Copies OF this booklet on the e
Dorado field are being distributed fre<
upon request by the Dallas office Of the
United States Bureau Of Mines. In the
Insurance building.