DUFF, A. H. ESTATE

Operated by TREK RESOURCES, INC. (P-5 867578) in the DOVE CREEK (CANYON -D-) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 7973District 7CField 25930426OilCasinghead gasSave
Value, all time
$5.3 M
Jan 1993 – May 2026
Value, last 12 filed months
$41 k
at the published price for each month
Months reported
401
no gaps in the span
Streams
2
oil, casinghead gas

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
OilDisposition55,248 bbl$1,962,412
Casinghead gasProduction979,647 Mcf$3,299,693
Total$5,262,105

206,789 Mcf of this lease's gas, across 48 months, carries no value here. No free Texas wellhead gas price exists before 1997, so those months are left out of the total rather than valued at zero. The total above is therefore a floor, not an estimate.

Wells on this lease (7)

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 31.0998, -100.6868. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.7 miles.

31.10036, -100.68566 · 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
100.0%
7 of 7 wells
With a plug date
14.3%
1 of 7 wells
Median depth
6,780 ft
7 wells filed one
Completion to plug
8.8 years
median over 1 wells

What the state filed about each well

On the RRC proration schedule
7100.0%
A plug date is filed
114.3%
BothOn the schedule and plugged. Neither fact cancels the other.
114.3%
NeitherNo plug date, and not on the schedule.
00.0%

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

Between 6,700 and 6,852 ft, median 6,780 ft, over the 7 wells that filed a depth.

Completions filed
Sep 1979 – Jan 1998
7 of 7 wells
Plug dates filed
Oct 2006
1 of 7 wells; 6 filed none

Last completion to plug: a median of 8.8 years across the 1 well that filed both dates, with the middle half between 8.8 years and 8.8 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

7 wells

42-4513061076,760 ftJan 1998Yes
42-4513237786,700 ftDec 1997Oct 2006Yes
42-2353150656,852 ftMar 1990Yes
42-4513058666,780 ftJun 1983Yes
42-2353146946,808 ftJan 1980Yes
42-4513053536,755 ftNov 1979Yes
42-4513049626,805 ftSep 1979Yes

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 (401)

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

401 months

May 20260653106.413.05$1,989
Apr 2026081998.932.87$2,350
Mar 2026071889.753.15$2,261
Feb 2026078063.503.75$2,925
Jan 2026079459.138.00$6,350
Dec 2025079456.664.41$3,504
Nov 2025078958.593.93$3,098
Oct 202501,03659.383.30$3,424
Sep 202501,12262.743.08$3,452
Aug 202501,37763.933.01$4,151
Jul 202501,27366.743.32$4,220
Jun 202501,00566.483.13$3,144
May 202501,01160.553.23$3,268
Apr 20251471,01462.363.54$12,760
Mar 202501,00267.704.27$4,277
Feb 2025085970.884.34$3,729
Jan 2025052274.324.28$2,233
Dec 20242811,25768.993.12$23,310
Nov 202401,25769.052.20$2,763
Oct 20241471,50171.372.28$13,916
Sep 202401,48469.612.36$3,509
Aug 202401,37775.632.06$2,842
Jul 202401,34679.932.15$2,889
Jun 202401,34478.082.63$3,540
May 202401,55178.812.20$3,410
Apr 202414980284.451.66$13,914
Mar 202401,30580.301.55$2,016
Feb 20241451,23676.091.78$13,238
Jan 2024058073.023.30$1,913
Dec 2023094371.262.61$2,462
Nov 202301,52677.892.81$4,284
Oct 202301,72285.443.09$5,316
Sep 202301,15889.042.74$3,167
Aug 202301,12380.522.67$3,002
Jul 202304074.852.64$106
Jun 202312277068.962.26$10,152
May 2023077870.622.23$1,733
Apr 202301,09878.122.24$2,457
Mar 20231481,12172.852.39$13,465
Feb 202301,17875.112.47$2,905
Jan 2023064576.533.39$2,185
Dec 202201,12876.415.73$6,462
Nov 202214481585.005.65$16,842
Oct 202201,53387.185.86$8,989
Sep 20221441,27284.888.16$22,607
Aug 202201,11194.529.13$10,140
Jul 202201,081101.587.54$8,153
Jun 20221481,282115.097.98$27,260
May 202200109.378.43$0
Apr 20221240104.226.84$12,923
Mar 202200108.885.08$0
Feb 20220091.054.86$0
Jan 2022252081.844.54$20,624
Dec 20210071.323.90$0
Nov 20210077.435.24$0
Oct 20210079.795.71$0
Sep 20210069.865.35$0
Aug 2021125066.024.22$8,253
Jul 20210070.783.98$0
Jun 2021125069.493.38$8,686
May 20210063.483.02$0
Apr 20210060.362.76$0
Mar 20210061.302.72$0
Feb 20210057.805.55$0
Jan 2021124050.412.81$6,251
Dec 20200044.642.68$0
Nov 2020122038.772.71$4,730
Oct 2020034836.972.48$862
Sep 2020084237.091.99$1,676
Aug 202012483139.982.39$6,940
Jul 2020056438.371.83$1,029
Jun 202012458034.901.69$5,308
May 2020064816.921.81$1,176
Apr 2020099214.751.80$1,790
Mar 20201261,14830.341.86$5,954
Feb 202001,07149.881.98$2,121
Jan 202001,24257.252.09$2,602
Dec 20191271,09059.012.30$10,006
Nov 2019097155.302.75$2,671
Oct 201912553753.472.42$7,983
Sep 2019099055.052.66$2,631
Aug 2019079653.112.30$1,834
Jul 20191261,14356.272.46$9,902
Jun 2019076152.782.49$1,896
May 201912744658.482.74$8,649
Apr 201901,04262.632.75$2,866
Mar 201901,13556.803.06$3,475
Feb 201901,10550.852.79$3,085
Jan 20191241,02146.033.23$9,004
Dec 20181221,14646.594.19$10,480
Nov 2018077652.934.24$3,288
Oct 2018056961.443.40$1,934
Sep 2018083459.543.11$2,592
Aug 2018079259.403.07$2,429
Jul 20181221,15565.142.93$11,333
Jun 201801,06860.183.08$3,286
May 201812683465.382.90$10,657
Apr 2018092363.842.90$2,677
Mar 2018060561.222.79$1,686
Feb 2018081261.782.77$2,246
Jan 20181261,06262.874.01$12,180
Dec 201701,03957.272.92$3,035
Nov 20171271,05955.423.12$10,341
Oct 201701,00049.292.98$2,984
Sep 2017091147.523.09$2,813
Aug 20171231,09645.373.00$8,873
Jul 201701,23543.873.09$3,813
Jun 201701,17142.493.09$3,615
May 201711695645.373.26$8,383
Apr 20171241,06347.933.21$9,357
Mar 201701,10546.772.98$3,297
Feb 2017091150.452.95$2,690
Jan 20171181,13949.413.42$9,724
Dec 201601,09348.763.72$4,069
Nov 201601,14142.492.64$3,017
Oct 20161241,26346.193.09$9,631
Sep 20161241,05741.553.10$8,430
Aug 201601,28241.442.92$3,749
Jul 201601,30541.622.92$3,816
Jun 20161241,35045.352.69$9,249
May 201601,24942.521.99$2,487
Apr 201601,20036.561.99$2,389
Mar 201601,30433.011.79$2,339
Feb 20161271,09126.472.06$5,613
Jan 20161251,17127.352.36$6,187
Dec 201501,36932.362.00$2,740
Nov 201501,31538.792.17$2,850
Oct 201501,51643.552.43$3,679
Sep 20151201,46442.992.76$9,197
Aug 201501,57040.162.87$4,510
Jul 20151261,63848.152.95$10,891
Jun 201501,50556.152.88$4,339
May 20151251,28955.212.96$10,711
Apr 201501,28549.822.71$3,478
Mar 20151681,29742.892.93$11,012
Feb 201501,24844.662.98$3,714
Jan 201501,39343.433.10$4,319
Dec 20141251,57654.693.59$12,496
Nov 201401,36670.464.25$5,808
Oct 20141301,40178.303.90$15,644
Sep 201401,76586.164.05$7,140
Aug 20141301,75489.394.04$18,698
Jul 20141301,81696.564.18$20,143
Jun 201401,85998.164.74$8,806
May 20141312,02694.734.73$21,986
Apr 20141802,00095.944.81$26,887
Mar 201401,35495.895.06$6,847
Feb 20141342,26697.406.19$27,083
Jan 20143962,07790.404.86$45,894
Dec 201301,72991.824.35$7,529
Nov 201301,52788.853.74$5,708
Oct 20131401,79197.423.78$20,408
Sep 20131171,628104.113.72$18,233
Aug 201301,759104.253.52$6,196
Jul 20131141,755102.523.72$18,212
Jun 201301,33094.403.93$5,231
May 201301,30494.834.15$5,410
Apr 20131131,40793.964.28$16,643
Mar 201301,37693.623.91$5,384
Feb 20131321,34491.233.42$16,639
Jan 201301,57091.603.42$5,369
Dec 20121331,64686.773.42$17,170
Nov 2012351,68086.953.62$9,133
Oct 2012701,60889.383.40$11,723
Sep 201201,75194.672.92$5,110
Aug 20121311,95092.662.91$17,809
Jul 20121241,00685.133.02$13,595
Jun 201201,64679.822.52$4,146
May 20121321,55291.612.49$15,954
Apr 20121301,651101.652.00$16,511
Mar 201201,728105.052.22$3,840
Feb 20122571,717101.102.57$30,396
Jan 201201,88198.092.73$5,143
Dec 20111391,95996.873.24$19,812
Nov 201101,64595.723.31$5,447
Oct 20111271,96284.983.65$17,951
Sep 20111261,98283.623.99$18,436
Aug 20111411,88083.404.15$19,560
Jul 201102,07994.144.52$9,391
Jun 20111211,74192.904.64$19,319
May 201101,81298.134.40$7,982
Apr 20111291,722105.964.33$21,131
Mar 201101,74796.364.06$7,088
Feb 201101,36685.644.18$5,710
Jan 20111111,39386.504.59$15,994
Dec 20101341,42685.734.35$17,688
Nov 201001,63780.843.80$6,213
Oct 20101281,34478.103.51$14,713
Sep 201001,42072.633.98$5,651
Aug 20101291,50273.684.42$16,143
Jul 201001,82572.554.74$8,644
Jun 20101561,74370.364.91$19,535
May 20101321,88371.124.24$17,363
Apr 201001,99781.694.12$8,233
Mar 20101332,01178.394.39$19,251
Feb 201002,12973.585.44$11,587
Jan 20101582,31674.365.96$25,562
Dec 200902,17371.445.48$11,916
Nov 20091212,16874.593.75$17,159
Oct 20091312,31972.544.11$19,034
Sep 200902,00265.543.06$6,136
Aug 20091141,93667.423.22$13,917
Jul 200901,98861.133.46$6,887
Jun 2009911,94866.163.90$13,608
May 20091331,96054.743.93$14,975
Apr 200901,73346.773.59$6,217
Mar 20091201,79742.144.06$12,351
Feb 200901,77132.814.63$8,205
Jan 20091231,83235.865.37$14,250
Dec 20081291,38137.105.98$13,040
Nov 200801,42155.496.86$9,749
Oct 20082012,13475.246.92$29,895
Sep 200801,969101.767.88$15,510
Aug 20081242,369114.228.48$34,260
Jul 20081232,153131.0811.39$40,644
Jun 20081131,763131.3313.03$37,817
May 200801,589123.1711.57$18,392
Apr 20081272,055110.3110.45$35,494
Mar 20081241,934101.909.66$31,326
Feb 200801,84492.538.77$16,173
Jan 20081261,87190.388.21$26,741
Dec 20071071,58788.337.30$21,040
Nov 200701,91791.677.29$13,978
Oct 20071202,22982.856.92$25,371
Sep 20071282,32275.846.24$24,206
Aug 20071302,51769.066.39$25,056
Jul 200702,24670.906.39$14,347
Jun 20072592,21662.007.55$32,785
May 200702,45158.747.85$19,231
Apr 200702,31659.617.81$18,077
Mar 20071252,43656.927.30$24,903
Feb 20071342,25355.108.22$25,894
Jan 20071322,76050.306.73$25,206
Dec 20061242,77056.656.92$26,189
Nov 20061332,58054.207.62$26,862
Oct 20062562,49654.906.01$29,065
Sep 200603,49360.085.04$17,595
Aug 20061282,78568.717.34$29,237
Jul 20061492,42169.376.34$25,692
Jun 200602,50866.286.38$16,011
May 20061352,78566.016.42$26,805
Apr 20061373,22164.397.36$32,530
Mar 20061152,74456.707.08$25,956
Feb 20061222,24557.597.75$24,427
Jan 20061272,99360.598.93$34,432
Dec 20051353,02854.9413.42$48,039
Nov 20051262,60354.6910.59$34,453
Oct 20051232,59058.3413.80$42,907
Sep 2005643,00661.4512.08$40,242
Aug 20051453,04961.519.80$38,790
Jul 20051062,44555.697.84$25,081
Jun 20051362,87552.337.38$28,337
May 20051313,02145.226.65$26,017
Apr 20051322,54049.207.36$25,190
Mar 20051293,31050.377.15$30,180
Feb 20051283,03445.226.31$24,939
Jan 20051293,41643.166.32$27,164
Dec 20041283,15939.866.75$26,429
Nov 20041202,88245.286.33$23,678
Oct 20041473,61849.706.52$30,878
Sep 20041343,05643.245.28$21,942
Aug 20043223,25542.375.55$31,711
Jul 2004363,89038.286.08$25,046
Jun 20041403,79936.106.43$29,493
May 20042514,41037.486.49$38,049
Apr 20042684,19934.475.86$33,838
Mar 20041343,51434.365.53$24,037
Feb 20042643,87132.455.51$29,895
Jan 20041373,76532.036.30$28,106
Dec 20033676,89030.266.30$54,524
Nov 20031884,47228.804.60$25,964
Oct 20033365,20628.174.76$34,244
Sep 20031894,92526.314.75$28,363
Aug 20031654,34829.765.13$27,214
Jul 20031862,65929.415.17$19,220
Jun 20031831,91428.565.98$16,678
May 20031752,57226.595.97$20,015
Apr 20032872,33626.675.41$20,286
Mar 20031732,86831.146.10$22,871
Feb 20032652,75233.487.93$30,684
Jan 20033773,11230.315.58$28,798
Dec 20021853,21526.914.85$20,583
Nov 2002733,31324.664.14$15,506
Oct 20022903,56126.464.23$22,733
Sep 20021843,86027.443.64$19,081
Aug 20023634,12625.963.16$22,479
Jul 200202,96824.583.06$9,087
Jun 2002813,06223.733.34$12,144
May 20021843,55524.663.58$17,279
Apr 20021503,28623.653.51$15,089
Mar 20022773,78122.003.10$17,825
Feb 20022293,72118.222.38$13,012
Jan 20023773,61417.172.38$15,059
Dec 2001933,69516.932.36$10,311
Nov 20013033,66918.072.41$14,301
Oct 20012303,63819.782.53$13,749
Sep 20013403,40824.262.25$15,921
Aug 20011833,66824.873.05$15,750
Jul 20011523,13223.933.20$13,651
Jun 20013484,65224.563.82$26,337
May 20011884,50125.524.31$24,185
Apr 20011764,97424.685.34$30,882
Mar 20012532,73924.545.38$20,935
Feb 20011983,10327.755.77$23,390
Jan 20013833,09227.478.40$36,490
Dec 20001923,36426.889.12$35,849
Nov 20003773,59432.215.66$32,478
Oct 20004364,16431.235.15$35,042
Sep 20001843,48431.875.19$23,934
Aug 20003684,63329.644.54$31,945
Jul 20003704,48928.534.09$28,915
Jun 20003654,26029.304.40$29,427
May 20002444,96927.263.68$24,936
Apr 20003713,77024.513.12$20,841
Mar 20001883,31928.422.86$14,834
Feb 20001862,82327.622.73$12,834
Jan 20003433,66825.272.48$17,766
Dec 19991863,67024.282.42$13,411
Nov 19993293,92923.192.43$17,193
Oct 19991884,39020.982.80$16,253
Sep 19991843,52321.752.62$13,228
Aug 19993474,37819.262.88$19,273
Jul 19993693,89917.892.37$15,851
Jun 19991844,44415.942.36$13,430
May 19991729,46515.792.32$24,684
Apr 19992673,44815.102.21$11,645
Mar 19993704,17512.471.84$12,289
Feb 19993724,2489.981.82$11,435
Jan 19993675,07710.381.90$13,456
Dec 19983735,3579.201.77$12,931
Nov 19981873,62210.892.19$9,953
Oct 19983905,26712.421.97$15,216
Sep 19983145,41112.592.08$15,222
Aug 19983676,42211.301.91$16,396
Jul 19983697,20111.742.24$20,443
Jun 19983698,08111.242.24$22,227
May 19981836,88312.622.21$17,496
Apr 19981885,25513.042.51$15,617
Mar 19983385,12112.802.31$16,153
Feb 19981794,85413.952.30$13,657
Jan 19981776,29014.702.15$16,156
Dec 19973516,64416.322.41$21,748
Nov 19971786,83918.193.09$24,358
Oct 19971786,72319.253.15$24,603
Sep 19973517,22617.742.95$27,579
Aug 19971826,69817.862.55$20,362
Jul 19971966,37817.582.25$17,777
Jun 19971864,57117.242.26$13,524
May 19973893,91418.972.31$16,415
Apr 19973843,66917.882.08$14,508
Mar 19973794,11818.951.94$15,167
Feb 199701,74520.492.21$3,849
Jan 19973631,25523.483.54$12,966
Dec 19963773,19723.32$8,792
Nov 19961923,47921.97$4,218
Oct 19961772,43923.31$4,126
Sep 19963642,03122.22$8,088
Aug 19963644,69320.26$7,375
Jul 19963244,35119.55$6,334
Jun 19961873,43518.73$3,503
May 19963796,79919.43$7,364
Apr 19963746,11821.51$8,045
Mar 19965367,71719.38$10,388
Feb 19963623,95716.98$6,147
Jan 19963603,10117.07$6,145
Dec 199503,10317.19$0
Nov 19951822,49116.00$2,912
Oct 19951772,73415.43$2,731
Sep 19951902,29616.18$3,074
Aug 199502,56115.92$0
Jul 19951783,78115.24$2,713
Jun 19951774,07716.41$2,905
May 19953473,75417.56$6,093
Apr 199503,75417.73$0
Mar 19951853,90716.44$3,041
Feb 19953694,04416.58$6,118
Jan 19953594,33415.92$5,715
Dec 19941804,04415.03$2,705
Nov 19947074,32615.90$11,241
Oct 19941844,92815.58$2,867
Sep 19941864,54715.29$2,844
Aug 19943554,73416.13$5,726
Jul 19941775,01117.56$3,108
Jun 19944975,45117.09$8,494
May 19941753,68015.88$2,779
Apr 19943483,29114.14$4,921
Mar 19943233,88812.46$4,025
Feb 19942143,46712.50$2,675
Jan 19943423,38012.66$4,330
Dec 19933684,91612.33$4,537
Nov 19935315,18514.49$7,694
Oct 19933605,00815.85$5,706
Sep 19938694,87415.03$13,061
Aug 19931835,29515.66$2,866
Jul 19933445,41115.46$5,318
Jun 19933515,09016.79$5,893
May 19933524,03617.68$6,223
Apr 19935435,40718.05$9,801
Mar 19933535,75818.14$6,403
Feb 19935386,00817.90$9,630
Jan 19933566,90116.93$6,027

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       653 Mcf  × $  3.05 =     $1,989

────────────────────────────────────────────────────
Month total                                   $1,989

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. 7C/O/7973 is the state's own key, not one this site invented.