DUFF, A. H. ESTATE "A"

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 8045District 7CField 25930426NGPA filingOilCasinghead gasSaveExport
Value, all time
$10.6 M
Jan 1993 – May 2026
Value, last 12 filed months
$119 k
at the published price for each month
Months reported
401
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 72 leases and 121 wells, and the rule below applies to all of them.

Discovered
1965-06-18
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 40 acres.

The Commission's schedule remark for this field reads: CONSOLIDATED) FIELD EFFECTIVE 03/01/2026.

Severance-tax incentive filings

Applications the operator filed to have this lease's gas taxed at a reduced state rate. A filing is an application, and this page never calls one a reduction that was granted.

ProgrammeFilingsWith an approval dateDatedDocket
NGPA8none

This says nothing about a royalty. A severance tax is charged to the operator. Whether a reduced rate reaches a royalty owner depends on the wording of the lease instrument, which is a private contract this site does not hold.

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
OilDisposition86,681 bbl$3,367,907
Casinghead gasProduction2,125,641 Mcf$7,218,187
Total$10,586,095

455,491 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 (9)

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 31.0890, -100.6879. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.8 miles.

31.08834, -100.68590 · 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%
9 of 9 wells
With a plug date
11.1%
1 of 9 wells
Median depth
6,795 ft
9 wells filed one
Completion to plug
42.8 years
median over 1 well

What the state filed about each well

On the RRC proration schedule
9100.0%
A plug date is filed
111.1%
BothOn the schedule and plugged. Neither fact cancels the other.
111.1%
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

Total depth in feet, 9 of 9 wells. Median 6,795 ft, with the middle half between 6,730 and 6,807 ft; the shallowest is 6,636 ft and the deepest 6,820 ft. The median is published rather than the mean, because a single mis-keyed depth moves a mean and cannot move a median.

When they were last completed

Last completion by decade, 9 of 9 wells, Nov 1979 – Oct 1997. This is the LAST completion filed on each wellbore, not the first — a well recompleted in 2019 counts once, in the 2010s.

Completions filed
Nov 1979 – Oct 1997
9 of 9 wells
Plug dates filed
Aug 2022
1 of 9 wells; 8 filed none

Last completion to plug: a median of 42.8 years across the 1 well that filed both dates, with the middle half between 42.8 years and 42.8 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

9 wells

42-4513237596,636 ftOct 1997Yes
42-4513054626,776 ftApr 1990Yes
42-2353147836,807 ftDec 1989Yes
42-4513058866,701 ftSep 1989Yes
42-2353281486,809 ftDec 1987Yes
42-2353281376,800 ftDec 1987Yes
42-4133086346,820 ftMar 1980Yes
42-4133087856,795 ftFeb 1980Yes
42-4513053416,730 ftNov 1979Aug 2022Yes

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 20260734106.413.05$2,236
Apr 20263591,12498.932.87$38,741
Mar 202601,76089.753.15$5,543
Feb 202601,11563.503.75$4,182
Jan 202601,38959.138.00$11,109
Dec 202501,50756.664.41$6,651
Nov 202501,12758.593.93$4,425
Oct 20251781,42359.383.30$15,272
Sep 202501,48062.743.08$4,554
Aug 20251761,74663.933.01$16,515
Jul 202501,67966.743.32$5,566
Jun 202501,38066.483.13$4,318
May 20250060.553.23$0
Apr 2025047062.363.54$1,665
Mar 20251741,32267.704.27$17,423
Feb 202501,17970.884.34$5,118
Jan 202536168974.324.28$29,778
Dec 20241761,35668.993.12$16,375
Nov 202401,72569.052.20$3,792
Oct 202401,97971.372.28$4,515
Sep 202401,95869.612.36$4,629
Aug 202401,89075.632.06$3,900
Jul 202401,92479.932.15$4,130
Jun 202401,77278.082.63$4,667
May 20243562,04678.812.20$32,554
Apr 20241692,35584.451.66$18,179
Mar 202401,72180.301.55$2,659
Feb 202401,63076.091.78$2,907
Jan 202402,17773.023.30$7,179
Dec 202302,41471.262.61$6,302
Nov 202302,46177.892.81$6,909
Oct 202333549985.443.09$30,163
Sep 202301,46889.042.74$4,015
Aug 202301,36780.522.67$3,654
Jul 202302,57374.852.64$6,797
Jun 202301,73168.962.26$3,909
May 20231762,08270.622.23$17,067
Apr 202301,77078.122.24$3,961
Mar 202301,88272.852.39$4,504
Feb 202301,32375.112.47$3,262
Jan 20231742,69676.533.39$22,450
Dec 202202,05576.415.73$11,773
Nov 20221772,39285.005.65$28,551
Oct 20221681,86687.185.86$25,588
Sep 202201,54984.888.16$12,646
Aug 202201,24894.529.13$11,391
Jul 20220734101.587.54$5,536
Jun 202201,384115.097.98$11,040
May 202204,018109.378.43$33,884
Apr 20221794,157104.226.84$47,079
Mar 20221803,912108.885.08$39,457
Feb 202203,71491.054.86$18,046
Jan 202203,57181.844.54$16,204
Dec 202104,41471.323.90$17,211
Nov 20211813,65377.435.24$33,145
Oct 202102,74679.795.71$15,690
Sep 202103,28569.865.35$17,578
Aug 20211783,75666.024.22$27,604
Jul 202103,36070.783.98$13,380
Jun 20211783,58569.493.38$24,489
May 202103,60763.483.02$10,885
Apr 20211813,31760.362.76$20,075
Mar 202102,84161.302.72$7,719
Feb 202102,31557.805.55$12,844
Jan 20211813,26850.412.81$18,308
Dec 202003,54144.642.68$9,474
Nov 20201763,83138.772.71$17,192
Oct 202002,79036.972.48$6,915
Sep 202001,86037.091.99$3,703
Aug 202001,97639.982.39$4,713
Jul 202001,51038.371.83$2,756
Jun 20203322,03934.901.69$15,033
May 202002,11616.921.81$3,840
Apr 202002,23114.751.80$4,026
Mar 202002,55430.341.86$4,741
Feb 20201792,14449.881.98$13,175
Jan 202002,23157.252.09$4,673
Dec 20191812,35959.012.30$16,117
Nov 201902,32555.302.75$6,395
Oct 20191782,51053.472.42$15,588
Sep 20191822,31055.052.66$16,157
Aug 201902,48653.112.30$5,729
Jul 20191692,50956.272.46$15,682
Jun 201902,56952.782.49$6,400
May 20191772,28958.482.74$16,624
Apr 201901,40662.632.75$3,867
Mar 2019093056.803.06$2,848
Feb 20191701,40650.852.79$12,570
Jan 20193551,88746.033.23$22,432
Dec 20181701,91846.594.19$15,948
Nov 201801,94452.934.24$8,237
Oct 20181761,07761.443.40$14,473
Sep 201802,16659.543.11$6,732
Aug 20181741,80059.403.07$15,855
Jul 201802,37165.142.93$6,951
Jun 201802,16160.183.08$6,649
May 20181741,89665.382.90$16,876
Apr 201801,71363.842.90$4,969
Mar 201801,75861.222.79$4,899
Feb 201801,63861.782.77$4,531
Jan 20181781,73162.874.01$18,131
Dec 201701,72157.272.92$5,028
Nov 20171781,93855.423.12$15,908
Oct 201701,74049.292.98$5,192
Sep 201701,73247.523.09$5,347
Aug 20171751,87045.373.00$13,558
Jul 201701,44843.873.09$4,470
Jun 201702,02942.493.09$6,264
May 20171711,94345.373.26$14,099
Apr 201702,01147.933.21$6,459
Mar 20171792,67846.772.98$16,362
Feb 201702,52850.452.95$7,464
Jan 20171743,08749.413.42$19,151
Dec 201602,27948.763.72$8,484
Nov 201602,38142.492.64$6,296
Oct 201602,50046.193.09$7,726
Sep 20161782,25941.553.10$14,400
Aug 201601,91141.442.92$5,588
Jul 201602,83641.622.92$8,293
Jun 201602,62045.352.69$7,037
May 201602,66542.521.99$5,306
Apr 201602,63036.561.99$5,236
Mar 201602,79733.011.79$5,018
Feb 2016762,74326.472.06$7,672
Jan 20161702,95727.352.36$11,641
Dec 20151793,33432.362.00$12,465
Nov 201503,30638.792.17$7,165
Oct 201502,98343.552.43$7,238
Sep 20151703,37342.992.76$16,612
Aug 201504,00040.162.87$11,490
Jul 20151773,87048.152.95$19,920
Jun 201503,30756.152.88$9,534
May 20151773,78055.212.96$20,944
Apr 20151743,68249.822.71$18,634
Mar 20153004,08242.892.93$24,846
Feb 201503,79744.662.98$11,301
Jan 20151824,41843.433.10$21,603
Dec 20143624,45654.693.59$35,801
Nov 201404,59870.464.25$19,550
Oct 201404,90278.303.90$19,123
Sep 20143713,86386.164.05$47,593
Aug 20141764,02189.394.04$31,958
Jul 20141764,10696.564.18$34,156
Jun 201403,78198.164.74$17,910
May 20141863,88694.734.73$35,987
Apr 20141974,13395.944.81$38,776
Mar 201404,22395.895.06$21,355
Feb 20141844,01997.406.19$42,807
Jan 20143723,44890.404.86$50,389
Dec 201302,91391.824.35$12,685
Nov 201303,28188.853.74$12,265
Oct 20131683,29497.423.78$28,816
Sep 20131723,952104.113.72$32,599
Aug 20131824,417104.253.52$34,533
Jul 20133654,101102.523.72$52,666
Jun 201303,65094.403.93$14,357
May 20131844,59594.834.15$36,514
Apr 2013894,41593.964.28$27,270
Mar 20131844,39393.623.91$34,415
Feb 201303,35591.233.42$11,474
Jan 20131753,51691.603.42$28,054
Dec 20121873,99586.773.42$29,890
Nov 20121753,86386.953.62$29,219
Oct 20121914,00789.383.40$30,694
Sep 20121694,03594.672.92$27,775
Aug 20121843,82892.662.91$28,182
Jul 20123613,56885.133.02$41,510
Jun 201203,89079.822.52$9,799
May 20121874,03291.612.49$27,164
Apr 20121884,143101.652.00$27,383
Mar 20123974,426105.052.22$51,540
Feb 20121804,144101.102.57$28,849
Jan 201204,52798.092.73$12,377
Dec 20111903,45396.873.24$29,592
Nov 201103,32995.723.31$11,023
Oct 201103,70284.983.65$13,507
Sep 20113714,09783.623.99$47,353
Aug 20113784,14783.404.15$48,732
Jul 20111804,21794.144.52$35,994
Jun 201104,47792.904.64$20,773
May 20111915,38498.134.40$42,458
Apr 20111825,325105.964.33$42,359
Mar 20113555,72696.364.06$57,440
Feb 201104,87385.644.18$20,369
Jan 20111795,30286.504.59$39,813
Dec 20101874,28485.734.35$34,657
Nov 20101874,73580.843.80$33,088
Oct 20101884,66978.103.51$31,066
Sep 20101814,67872.633.98$31,762
Aug 20103584,83973.684.42$47,763
Jul 201005,39572.554.74$25,553
Jun 20101894,04470.364.91$33,156
May 201004,16071.124.24$17,619
Apr 20101794,39281.694.12$32,729
Mar 20101794,90578.394.39$35,558
Feb 201004,27273.585.44$23,250
Jan 20101364,49274.365.96$36,904
Dec 20091844,46071.445.48$37,602
Nov 20091784,94474.593.75$31,824
Oct 20091764,89072.544.11$32,866
Sep 20091834,66165.543.06$26,279
Aug 200904,71967.423.22$15,188
Jul 200904,14461.133.46$14,357
Jun 20091823,57866.163.90$25,977
May 20091514,36054.743.93$25,382
Apr 20091794,69346.773.59$25,208
Mar 20091885,21742.144.06$29,098
Feb 20091924,70532.814.63$28,098
Jan 20091815,63535.865.37$36,756
Dec 20083745,25237.105.98$45,267
Nov 200805,49855.496.86$37,718
Oct 20083656,08375.246.92$69,569
Sep 200805,058101.767.88$39,842
Aug 20083555,347114.228.48$85,907
Jul 20083665,102131.0811.39$106,084
Jun 20081874,949131.3313.03$89,057
May 20083714,004123.1711.57$92,040
Apr 200804,178110.3110.45$43,680
Mar 20081864,819101.909.66$65,525
Feb 200804,70992.538.77$41,301
Jan 20083735,34190.388.21$77,539
Dec 20071925,53488.337.30$57,368
Nov 200705,51991.677.29$40,243
Oct 20073665,88882.856.92$71,080
Sep 20073665,82175.846.24$64,105
Aug 200706,10269.066.39$38,979
Jul 20071825,76570.906.39$49,730
Jun 20071805,27562.007.55$50,978
May 20073645,65758.747.85$65,768
Apr 20071895,34959.617.81$53,016
Mar 20071885,50356.927.30$50,884
Feb 20073544,68555.108.22$57,997
Jan 20071865,39150.306.73$45,620
Dec 20061906,30356.656.92$54,370
Nov 20061806,19354.207.62$56,931
Oct 20063674,24554.906.01$45,677
Sep 20061854,89960.085.04$35,792
Aug 20063674,64768.717.34$59,325
Jul 20063584,60769.376.34$54,056
Jun 200605,55166.286.38$35,437
May 20061785,39566.016.42$46,413
Apr 20063775,90164.397.36$67,709
Mar 20061745,34756.707.08$47,738
Feb 200605,05757.597.75$39,197
Jan 20061816,09060.598.93$65,371
Dec 20051865,78154.9413.42$87,773
Nov 20051845,58654.6910.59$69,210
Oct 20051866,18858.3413.80$96,219
Sep 20051795,88061.4512.08$82,024
Aug 20051755,28561.519.80$62,541
Jul 20051756,17355.697.84$58,165
Jun 20051676,09952.337.38$53,756
May 20053526,60445.226.65$59,842
Apr 20051866,26849.207.36$55,287
Mar 20051746,51750.377.15$55,393
Feb 20053546,24745.226.31$55,438
Jan 20051776,53443.166.32$48,949
Dec 20043486,05339.866.75$54,736
Nov 20041905,55845.286.33$43,788
Oct 20041805,32149.706.52$43,613
Sep 20041806,10543.245.28$40,041
Aug 20043056,14942.375.55$47,054
Jul 20041866,41338.286.08$46,138
Jun 20041766,47936.106.43$48,033
May 20043216,76037.486.49$55,934
Apr 20041855,65034.475.86$39,477
Mar 20041786,83434.365.53$43,909
Feb 20043696,11632.455.51$45,671
Jan 20041835,36932.036.30$39,684
Dec 20031826,42130.266.30$45,970
Nov 20031856,59028.804.60$35,610
Oct 20033677,33028.174.76$45,227
Sep 20031836,42126.314.75$35,310
Aug 20031777,19629.765.13$42,181
Jul 20033236,84529.415.17$44,894
Jun 20031686,07428.565.98$41,139
May 20031627,71226.595.97$50,369
Apr 20033857,42126.675.41$50,395
Mar 20031837,71731.146.10$52,742
Feb 20032796,32233.487.93$59,448
Jan 20033727,21730.315.58$51,561
Dec 20023686,74026.914.85$42,617
Nov 20021067,59024.664.14$34,013
Oct 20022527,28826.464.23$37,490
Sep 20021827,46927.443.64$32,145
Aug 20022977,88325.963.16$32,653
Jul 20023597,31624.583.06$31,224
Jun 20022325,74123.733.34$24,670
May 20021795,49724.663.58$24,115
Apr 20021685,10323.653.51$21,897
Mar 20022755,44622.003.10$22,947
Feb 20023615,19218.222.38$18,912
Jan 20023616,19417.172.38$20,913
Dec 20012176,93216.932.36$20,064
Nov 20011836,53018.072.41$19,015
Oct 20013196,75219.782.53$23,385
Sep 20012724,59524.262.25$16,944
Aug 20011844,85324.873.05$19,393
Jul 20013465,33223.933.20$25,327
Jun 20013544,99924.563.82$27,811
May 20013695,57725.524.31$33,439
Apr 20013486,83424.685.34$45,050
Mar 20011888,07224.545.38$48,012
Feb 20011887,37327.755.77$47,738
Jan 20013738,16227.478.40$78,797
Dec 20003679,37626.889.12$95,398
Nov 20003757,30632.215.66$53,416
Oct 20003098,95731.235.15$55,738
Sep 20001828,95831.875.19$52,261
Aug 20003639,48629.644.54$53,833
Jul 20003649,34428.534.09$48,600
Jun 20001759,08429.304.40$45,072
May 20003619,44127.263.68$44,581
Apr 20001858,74824.513.12$31,793
Mar 20003639,06828.422.86$36,249
Feb 20003659,17627.622.73$35,100
Jan 20001829,76625.272.48$28,824
Dec 199936910,64324.282.42$34,755
Nov 199940610,28923.192.43$34,458
Oct 199918210,90920.982.80$34,404
Sep 19993659,72221.752.62$33,399
Aug 19991998,09019.262.88$27,096
Jul 199934110,42917.892.37$30,842
Jun 199950810,11915.942.36$32,000
May 19991631,18315.792.32$5,320
Apr 199945610,20715.102.21$29,423
Mar 199936510,16612.471.84$23,240
Feb 199936510,1039.981.82$22,008
Jan 199954111,05210.381.90$26,614
Dec 199854811,0529.201.77$24,640
Nov 199834211,03210.892.19$27,837
Oct 199835211,32312.421.97$26,669
Sep 199841710,72812.592.08$27,592
Aug 199836411,37211.301.91$25,804
Jul 199836511,88911.742.24$30,884
Jun 199853911,94811.242.24$32,789
May 199854012,76512.622.21$34,979
Apr 199854612,25913.042.51$37,833
Mar 199857712,64212.802.31$36,582
Feb 199869010,91513.952.30$34,721
Jan 199869612,75814.702.15$37,722
Dec 19974611,93116.322.41$29,518
Nov 199769412,49118.193.09$51,199
Oct 199787314,04219.253.15$61,035
Sep 199751211,74917.742.95$43,800
Aug 199734310,16417.862.55$32,092
Jul 19975528,89417.582.25$29,688
Jun 19971957,33217.242.26$19,912
May 19973568,70918.972.31$26,858
Apr 19975827,76217.882.08$26,573
Mar 19975688,50018.951.94$27,246
Feb 19971945,81320.492.21$16,798
Jan 19973727,12323.483.54$33,948
Dec 19967428,13323.32$17,303
Nov 19961897,43521.97$4,152
Oct 19965497,99523.31$12,797
Sep 19963598,22522.22$7,977
Aug 19965358,61120.26$10,839
Jul 19965879,29419.55$11,476
Jun 19961808,96718.73$3,371
May 19963677,89519.43$7,131
Apr 19965236,60921.51$11,250
Mar 19965466,41519.38$10,581
Feb 19969329,07916.98$15,825
Jan 19963648,53917.07$6,213
Dec 19955729,06917.19$9,833
Nov 19953869,74816.00$6,176
Oct 1995010,15515.43$0
Sep 199538810,09716.18$6,278
Aug 199537610,91715.92$5,986
Jul 199537410,06415.24$5,700
Jun 19953729,40316.41$6,105
May 19951809,26817.56$3,161
Apr 19955279,04117.73$9,344
Mar 19953689,19416.44$6,050
Feb 19955628,69316.58$9,318
Jan 19955449,56415.92$8,660
Dec 19943669,79915.03$5,501
Nov 19947438,91015.90$11,814
Oct 19943449,85315.58$5,360
Sep 19943549,90215.29$5,413
Aug 199468210,29216.13$11,001
Jul 19943469,89017.56$6,076
Jun 199453010,20317.09$9,058
May 199468310,07315.88$10,846
Apr 199436010,01814.14$5,090
Mar 199453010,07512.46$6,604
Feb 19945359,07012.50$6,688
Jan 19947279,13612.66$9,204
Dec 199354510,21112.33$6,720
Nov 199354810,20514.49$7,941
Oct 199372210,84615.85$11,444
Sep 199352110,67915.03$7,831
Aug 199352710,73415.66$8,253
Jul 199369511,32715.46$10,745
Jun 19935339,96716.79$8,949
May 19935319,53817.68$9,388
Apr 199353310,79918.05$9,621
Mar 199391510,17718.14$16,598
Feb 199337310,17517.90$6,677
Jan 199372411,20216.93$12,257

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       734 Mcf  × $  3.05 =     $2,236

────────────────────────────────────────────────────
Month total                                   $2,236

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/8045 is the state's own key, not one this site invented.