Petroleum and Natural Gas Fields in Wyoming Page: 48
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PETROLEUM AND NATURAL GAS FIELDS IN WYOMING
of about 6,800 feet. Analysis of the gas is
given in table 8 (p. 287).
In December 1952 one well was furnishing
gas for Powder River, Wyo. Peak production
for the field was 434 million cubic feet during
1925. Gas was delivered into the Big Sand
Draw-Casper gasline, at least through 1925.
Cumulative gas production through 1956
amounted to 1,326 million cubic feet.
North Boone dome is a small anticline in
secs. 28, 29, and 32, T. 36 N., R. 85 W., 3 miles
northwest of the Boone Dome gasfield, Na-
trona County. The Steel shale forms the sur-
face at an elevation of about 6,000 feet. The
Teapot sandstone member of the Mesaverde
formation dips 15 on the east flank of the
structure toward a synclinal axis about 1/2
mile east of the anticlinal axis and 50 to 65
on the west flank at a point 1 mile west of
the axis.
In 1917 a well drilled in the SE1/SE1/4 sec.
29 had a good showing of gas from the Shan-
non sand at 660 to 690 feet. Nine wells were
drilled on this structure from 191.7 to 1933;
good showings of gas were obtained in most of
these wells. One well had a showing of oil.
None of the wells was large enough to have
commercial value. A well in the SE1/4SW/4
sec. 28 was drilled to 7,805 feet in the Ten-
sleep formation and then abandoned.
BORIE
The Borie field (fig. 29) is in the east half
of T. 13 N., R. 68 W., Laramie County, about
10 miles west of Cheyenne. The structure is
reported to be an elongated dome, with the
axis trending north and south. It is on the
east-dipping flank of the Laramie Mountains.
The surface formation is the Ogallala. Eleva-
tions of the wells range from 6,400 to 6,600
feet.
Borie field was discovered in 1949 on com-
pletion of a well in the NW1/4SW1/4 sec. 13.
Initial daily production was 248 barrels of
38.4 API gravity oil from the Muddy sand
at 8,483 to 8,570 feet. The well had been
drilled into granite at 11,374 feet before being
plugged back to the Muddy sand. A total of
13 wells had been drilled in the field by late
1957. Of these, eight were completed as oil
wells in the Muddy sand, and five were dry
holes. The log of the discovery well showed
the depth, in feet, to the top of formations
as follows: Niobrara, 7,550; Timpas, 7,825;
Codell, 7,840; Muddy, 8,483; Dakota, 8,630;
Fuson, 8,699; Lakota, 8,733; Morrison, 8,769;
Sundance, 9,004; Jelm, 9,172; Chugwater,9,226; Casper, 10,160; Fountain, 10,970; and
granite, 11,205. Analysis of crude oil from the
Muddy sand is given on page 344.
On December 18, 1957, seven wells were pro-
ducing a total of 230 barrels of oil daily with
only a trace of water. The total reported oil
production to January 1, 1957, was 1,295,251
barrels. The oil is trucked to Cheyenne.
BOX CREEK
Box Creek is a one-well oilfield in the SE1/4
sec. 17, T. 37 N., R. 67 W., Converse County.
The structure is a stratigraphic trap. The
Fort Union formation is exposed on the sur-
face at an elevation of 4,347 feet. The one
well was completed in August 1955. Initial
flowing production was 87 barrels of oil in
17 hours from the Newcastle sand. The well
has been reported shut in since completion.
BRIDGE CREEK
The Bridge Creek oilfield is in sec. 31, T.
39 N., R. 61 W., Niobrara County, about 6
miles southwest of Mule Creek field. The
structure was outlined by surface geology,
seismic work, and core drilling before oil was
discovered. A map of the area, published by
the Federal Geological Survey, indicates a
monoclinal fold. Exploration for oil in this
area was based partly on the possibility of
shoreline accumulations on the east side of
the Powder River geologic basin. The Pierre
shale is exposed at the surface at an average
elevation of 3,950 feet.
The discovery well, in the SE1/, sec. 31, was
completed August 22, 1948. Initial production
was 60 barrels of 380 API gravity oil a day,
by swabbing, from the Dakota sand from 2,570
to 2,574 feet. The log of the well showed the
depth, in feet, to the top of formations, as fol-
lows: Niobrara, 540; Carlile, 1,356; Greenhorn,
1,575; Belle Fourche, 1,672; Mowry, 2,075;
Newcastle, 2,389; Skull Creek, 2,397; and Da-
kota, 2,538.
The discovery well was the second well
drilled in the field. The first well was drilled
to 5,329 feet and topped the Pahasapa at 5,190
feet; water was found in the Leo sand.
Twelve wells have been drilled in the Bridge
Creek area; oil has been produced from one
well, two wells were suspended indefinitely,
and nine were abandoned as failures.
The field was abandoned late in 1953. The
last reported oil production was 3,751 barrels
for 1953. Cumulative production to the end
of 1953 was 49,923 barrels of oil. The oil pro-
duced at the field was transported by truck.48
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Biggs, Paul & Espach, Ralph H. Petroleum and Natural Gas Fields in Wyoming, report, 1960; Washington D.C.. (https://digital.library.unt.edu/ark:/67531/metadc38797/m1/62/: accessed April 24, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.