DARWIN

Operated by TRILOGY OPERATING, INC. (P-5 869713) in the DEADWOOD (FUSSELMAN) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 43173District 08Field 23736500Hydrogen sulphide fieldOilCasinghead gasSaveExport
Value, all time
$3.1 M
Sep 2012 – May 2026
Value, last 12 filed months
$5 k
at the published price for each month
Months reported
165
no gaps in the span
Streams
2
oil, casinghead gas

The Railroad Commission's own record for the field this lease produces from, including the spacing rule that governs how close together its wells may be drilled.

These are facts about the field, not about this lease. The field holds 21 leases and 34 wells, and the rule below applies to all of them.

Discovered
1977-07-03
as the register files it
Field class
Oil and gas
the register's own label
Between wells
1,320 ft
minimum
From a lease line
660 ft
minimum

A drilling unit in this field needs at least 80 acres. The field rule took effect on 1978-10-10.

The register flags this field for hydrogen sulphide. That is a poisonous gas that occurs naturally in some formations. The flag is a property of the field as the Commission records it. It is not a measurement taken at this lease, and it is not a statement that gas is escaping anywhere.

The Commission's schedule remark for this field reads: OPTIONAL 80 ACRE UNITS - DIAGONAL 3250'

What this lease produced, and what it was worth

Oil and condensate are valued on the volume the state records as disposed of; gas and casinghead gas on the volume produced. They are different columns of different files, and the difference is not cosmetic.

StreamBasisVolumeValue
OilDisposition32,608 bbl$2,862,254
Casinghead gasProduction56,135 Mcf$208,049
Total$3,070,304

Wells on this lease (1)

Every wellbore the Railroad Commission records against this lease key, with the depth, the last completion and the plug date exactly as filed. A well with no plug date is not stated to be producing — the state files no such flag.

These wells centre on 32.1449, -101.4333. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.0 miles.

32.14492, -101.43334 · centre of the wells drawn, derived

What these wells add up to

Every figure below is counted over all of this lease's wells, not over the rows listed above. The Railroad Commission files two facts about a well's state — a plug date and a proration-schedule flag — and a well can carry both, so they are published as separate counts and never merged into a status.

On the schedule
0.0%
0 of 1 wells
With a plug date
0.0%
0 of 1 wells
Median depth
10,074 ft
1 wells filed one
Completion to plug
no well filed both dates

What the state filed about each well

On the RRC proration schedule
00.0%
A plug date is filed
00.0%
BothOn the schedule and plugged. Neither fact cancels the other.
00.0%
NeitherNo plug date, and not on the schedule.
1100.0%

A plug date is the date the Commission recorded the wellbore as sealed with cement and abandoned. It is the only end-of-life fact Texas files. There is no "active" flag on a well, so this page does not print one — a well with no plug date is not stated to be producing.

How deep they were drilled

The one well that filed a depth was drilled to 10,074 ft.

Completions filed
Sep 2012
1 of 1 wells

1 well

42-22737000110,074 ftSep 2012

The API number is the state's, prefixed 42 for Texas. A well is matched to this lease by the lease key the Commission files on the wellbore record, so a well that has moved between leases appears under each one it was filed against.

Every month this lease reported (165)

Volume × price = value, one row per cycle. The price columns are the same series published on the prices page — nothing here is modelled.

165 months

May 2026017106.413.05$52
Apr 20269398.932.87$899
Mar 202602589.753.15$79
Feb 202691863.503.75$639
Jan 202692659.138.00$740
Dec 202502456.664.41$106
Nov 202510958.593.93$621
Oct 2025101559.383.30$643
Sep 202501062.743.08$31
Aug 202592163.933.01$639
Jul 20259966.743.32$631
Jun 202501766.483.13$53
May 202592760.553.23$632
Apr 202591462.363.54$611
Mar 202591767.704.27$682
Feb 202592470.884.34$742
Jan 2025131274.324.28$1,018
Dec 202401768.993.12$53
Nov 2024123869.052.20$912
Oct 2024114071.372.28$876
Sep 202402969.612.36$69
Aug 2024113175.632.06$896
Jul 202403379.932.15$71
Jun 202494778.082.63$827
May 202495278.812.20$824
Apr 202495284.451.66$846
Mar 202405380.301.55$82
Feb 202495676.091.78$785
Jan 2024126573.023.30$1,091
Dec 202395971.262.61$795
Nov 2023185477.892.81$1,554
Oct 2023173585.443.09$1,561
Sep 202303789.042.74$101
Aug 2023124180.522.67$1,076
Jul 202304074.852.64$106
Jun 202303968.962.26$88
May 202383770.622.23$647
Apr 202383778.122.24$708
Mar 2023264072.852.39$1,990
Feb 202393675.112.47$765
Jan 202394276.533.39$831
Dec 202294576.415.73$946
Nov 202284385.005.65$923
Oct 2022194887.185.86$1,938
Sep 202294184.888.16$1,099
Aug 2022183694.529.13$2,030
Jul 20221032101.587.54$1,257
Jun 20221434115.097.98$1,882
May 2022832109.378.43$1,145
Apr 2022931104.226.84$1,150
Mar 20222035108.885.08$2,355
Feb 2022103391.054.86$1,071
Jan 2022193581.844.54$1,714
Dec 2021123271.323.90$981
Nov 2021484177.435.24$3,931
Oct 20212812779.795.71$2,960
Sep 202107969.865.35$423
Aug 202103066.024.22$127
Jul 202183470.783.98$702
Jun 2021173969.493.38$1,313
May 202193563.483.02$677
Apr 202193360.362.76$634
Mar 2021384061.302.72$2,438
Feb 202187857.805.55$895
Jan 2021383350.412.81$2,008
Dec 202004744.642.68$126
Nov 20200938.772.71$24
Oct 202001136.972.48$27
Sep 202002237.091.99$44
Aug 202002739.982.39$64
Jul 202003038.371.83$55
Jun 202002634.901.69$44
May 202002516.921.81$45
Apr 202002814.751.80$51
Mar 202003230.341.86$59
Feb 202002049.881.98$40
Jan 202002657.252.09$54
Dec 201922159.012.30$166
Nov 201902355.302.75$63
Oct 201911953.472.42$99
Sep 201941455.052.66$257
Aug 201932853.112.30$224
Jul 201939856.272.46$410
Jun 2019109952.782.49$774
May 2019610058.482.74$625
Apr 20191311062.632.75$1,117
Mar 20191910956.803.06$1,413
Feb 2019510950.852.79$559
Jan 2019513346.033.23$660
Dec 20185210646.594.19$2,866
Nov 20187612452.934.24$4,548
Oct 2018412361.443.40$664
Sep 2018912559.543.11$924
Aug 20181015059.403.07$1,054
Jul 20186065.142.93$391
Jun 20181060.183.08$60
May 20183065.382.90$196
Apr 20187063.842.90$447
Mar 20180061.222.79$0
Feb 20180061.782.77$0
Jan 20180062.874.01$0
Dec 20171415357.272.92$1,249
Nov 2017489255.423.12$3,003
Oct 20171478849.292.98$3,041
Sep 20171476747.523.09$3,033
Aug 20171181645.373.00$2,951
Jul 20171077143.873.09$2,819
Jun 2017147342.493.09$820
May 2017810445.373.26$702
Apr 201799947.933.21$749
Mar 2017510046.772.98$532
Feb 201769350.452.95$577
Jan 2017110849.413.42$419
Dec 2016210448.763.72$485
Nov 20160042.492.64$0
Oct 2016011846.193.09$365
Sep 201645041.553.10$1,870
Aug 201617477741.442.92$9,483
Jul 201610398741.622.92$7,173
Jun 201612434745.352.69$6,555
May 20169390342.521.99$5,752
Apr 201613592636.561.99$6,779
Mar 201616496433.011.79$7,143
Feb 201616586726.472.06$6,157
Jan 2016541,09127.352.36$4,056
Dec 201599032.362.00$3,204
Nov 201592038.792.17$3,569
Oct 201525619743.552.43$11,627
Sep 201522921742.992.76$10,443
Aug 201526228040.162.87$11,326
Jul 201523040348.152.95$12,261
Jun 201562747356.152.88$36,570
May 201514240055.212.96$9,022
Apr 20159340749.822.71$5,735
Mar 201530545542.892.93$14,417
Feb 201514748644.662.98$8,011
Jan 201530545543.433.10$14,657
Dec 201423550054.693.59$14,648
Nov 201425151970.464.25$19,892
Oct 201447451978.303.90$39,139
Sep 201430357786.164.05$28,441
Aug 20144101,26089.394.04$41,734
Jul 201428130096.564.18$28,387
Jun 201441833998.164.74$42,637
May 201457298094.734.73$58,818
Apr 20145741,80095.944.81$63,726
Mar 20141,0572,01595.895.06$111,545
Feb 20147161,51497.406.19$79,113
Jan 20148682,30090.404.86$89,647
Dec 20139152,10591.824.35$93,181
Nov 20139631,62888.853.74$91,648
Oct 20131,20594997.423.78$120,978
Sep 20131,4551,145104.113.72$155,737
Aug 20131,6941,652104.253.52$182,419
Jul 20132,1221,611102.523.72$223,537
Jun 20131,8241,62094.403.93$178,558
May 20131,5111,40194.834.15$149,101
Apr 20132,8683,02293.964.28$282,419
Mar 20133,1643,22293.623.91$308,821
Feb 20132,4073,04791.233.42$230,011
Jan 20131,4462,35191.603.42$140,494
Dec 20120086.773.42$0
Nov 20120086.953.62$0
Oct 20120089.383.40$0
Sep 20120094.672.92$0

How to read this page

The arithmetic is one multiplication per stream per month. Here it is, worked, on a real row from the table above.

May 2026 — as filed, then multipliedworked
Oil                    0 bbl  × $106.41 =         $0
Casinghead gas        17 Mcf  × $  3.05 =        $52

────────────────────────────────────────────────────
Month total                                      $52

The volumes are the state's, unchanged

Every barrel and every Mcf on this page is a number the Railroad Commission of Texas published in its monthly production query. Nothing is modelled, estimated or filled in.

The dollars are a multiplication, not a valuation

Volume × a published monthly price. It is not what the operator was paid: it takes no account of a contract, a differential, a transportation deduction, or the share any one owner holds.

Oil and gas are priced differently

Oil is a Texas realisation — the crude oil first purchase price. Gas is a benchmark, because no free Texas wellhead gas series exists at any date. The prices page publishes the difference rather than correcting it away.

A lease is not a well

The state reports oil on lease and gas on well, and this page is the lease grain. 08/O/43173 is the state's own key, not one this site invented.