SEALY-SMITH FOUNDATION -A-

Operated by HILCORP ENERGY COMPANY (P-5 386310) in the MONAHANS, NORTH (GLORIETA) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 4410District 08Field 62417540OilCasinghead gasSaveExport
Value, all time
$11.0 M
Jan 1993 – May 2026
Value, last 12 filed months
$179 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 10 leases and 27 wells, and the rule below applies to all of them.

Discovered
1946-08-06
as the register files it
Field class
Oil and gas
the register's own label
Between wells
no field rule filed
From a lease line
no field rule filed

The Commission's schedule remark for this field reads: NET GOR 1200 PER WELL

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
OilDisposition115,157 bbl$5,431,404
Casinghead gasProduction1,326,993 Mcf$5,536,746
Total$10,968,150

108,151 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 (12)

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 31.7202, -102.9344. A lease has no coordinate of its own — that point is the mean of its wells, and they span 2.3 miles.

31.71854, -102.93645 · 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
50.0%
6 of 12 wells
With a plug date
41.7%
5 of 12 wells
Median depth
6,219 ft
12 wells filed one
Completion to plug
22.9 years
median over 3 wells

What the state filed about each well

On the RRC proration schedule
650.0%
A plug date is filed
541.7%
BothOn the schedule and plugged. Neither fact cancels the other.
541.7%
NeitherNo plug date, and not on the schedule.
650.0%

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, 12 of 12 wells. Median 6,219 ft, with the middle half between 5,933 and 6,387 ft; the shallowest is 4,057 ft and the deepest 10,235 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, 10 of 12 wells, Feb 1975 – Apr 2018. This is the LAST completion filed on each wellbore, not the first — a well recompleted in 2019 counts once, in the 2010s.

Completions filed
Feb 1975 – Apr 2018
10 of 12 wells; 2 filed none
Plug dates filed
Nov 2001 – Jan 2023
5 of 12 wells; 7 filed none

Last completion to plug: a median of 22.9 years across the 3 wells that filed both dates, with the middle half between 13.9 years and 24.8 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

12 wells

42-4950528485,215 ftNov 2001Yes
42-4950528594,057 ftMar 2012Yes
42-495300743810,235 ftApr 2018
42-49532614696,400 ftFeb 2018Jan 2023Yes
42-49533165805,852 ftJul 2006
42-49530206416,240 ftAug 2001
42-49532446625,960 ftAug 2001
42-49532451656,000 ftFeb 2000
42-49530200406,200 ftFeb 2000
42-4950529346,450 ftMar 1999Feb 2022Yes
42-4950529236,383 ftAug 1993Yes
42-4950529456,238 ftFeb 1975Nov 2001Yes

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 2026031106.413.05$94
Apr 2026534,05698.932.87$16,883
Mar 2026474,25789.753.15$17,625
Feb 2026312,29163.503.75$10,560
Jan 2026672,89559.138.00$27,116
Dec 2025953,17056.664.41$19,373
Nov 2025622,97258.593.93$15,302
Oct 2025563,54059.383.30$15,024
Sep 2025522,99162.743.08$12,466
Aug 2025743,49663.933.01$15,270
Jul 20251212,27966.743.32$15,631
Jun 20251151,80866.483.13$13,302
May 20251383,71360.553.23$20,358
Apr 20251563,51762.363.54$22,189
Mar 20251653,90267.704.27$27,825
Feb 20252233,33270.884.34$30,270
Jan 20251402,15874.324.28$19,638
Dec 2024266068.993.12$18,351
Nov 20242263,49469.052.20$23,287
Oct 20243374,67371.372.28$34,713
Sep 20241894,99369.612.36$24,962
Aug 20243114,51575.632.06$32,838
Jul 20242165,15779.932.15$28,335
Jun 20243024,75078.082.63$36,092
May 20243165,17478.812.20$36,279
Apr 20243765,99084.451.66$41,692
Mar 20242915,67380.301.55$32,133
Feb 20241224,56476.091.78$17,424
Jan 20241974,85973.023.30$30,408
Dec 20232865,98271.262.61$35,998
Nov 20233273,33877.892.81$34,842
Oct 20232195,00585.443.09$34,163
Sep 20231935,93289.042.74$33,409
Aug 20231675,13080.522.67$27,159
Jul 20231496,32074.852.64$27,849
Jun 20231786,11268.962.26$26,079
May 20231485,80970.622.23$23,391
Apr 20231735,05978.122.24$24,836
Mar 20231463,22572.852.39$18,354
Feb 20231672,99175.112.47$19,918
Jan 20231831,92676.533.39$20,530
Dec 20223742,00576.415.73$40,064
Nov 20223571,78185.005.65$40,401
Oct 20222892,57187.185.86$40,271
Sep 20222832,37084.888.16$43,369
Aug 20224512,66494.529.13$66,943
Jul 20226753,100101.587.54$91,947
Jun 20223811,901115.097.98$59,014
May 20224112,765109.378.43$68,268
Apr 20222873,614104.226.84$54,622
Mar 20222634,607108.885.08$52,022
Feb 20222754,18891.054.86$45,388
Jan 20222433,74181.844.54$36,863
Dec 20212653,90271.323.90$34,114
Nov 20212973,89577.435.24$43,394
Oct 20213944,65479.795.71$58,030
Sep 20214114,85869.865.35$54,707
Aug 20213665,33266.024.22$46,668
Jul 20211934,22470.783.98$30,481
Jun 20212503,31369.493.38$28,572
May 20213504,02063.483.02$34,349
Apr 20213824,46860.362.76$35,382
Mar 20213234,83261.302.72$32,928
Feb 20213181,14157.805.55$24,711
Jan 20213161,19350.412.81$19,282
Dec 20202931,22444.642.68$16,354
Nov 20202761,28238.772.71$14,170
Oct 20202331,44236.972.48$12,188
Sep 20202231,46337.091.99$11,184
Aug 20202241,60739.982.39$12,788
Jul 20202131,57938.371.83$11,055
Jun 20202141,64934.901.69$10,256
May 20203341,77616.921.81$8,874
Apr 202036418014.751.80$5,694
Mar 20204111,61430.341.86$15,466
Feb 2020392049.881.98$19,553
Jan 2020522057.252.09$29,885
Dec 2019453059.012.30$26,732
Nov 2019374055.302.75$20,682
Oct 2019276053.472.42$14,758
Sep 2019255055.052.66$14,038
Aug 2019337053.112.30$17,898
Jul 2019401056.272.46$22,564
Jun 2019305052.782.49$16,098
May 2019298058.482.74$17,427
Apr 2019354062.632.75$22,171
Mar 20192221,20456.803.06$16,296
Feb 201914694450.852.79$10,060
Jan 20191811,12946.033.23$11,976
Dec 20183401,37546.594.19$21,596
Nov 20181231,66452.934.24$13,561
Oct 20182952,30261.443.40$25,947
Sep 20183812,30759.543.11$29,855
Aug 20184772,39259.403.07$35,669
Jul 20184512,51565.142.93$36,752
Jun 20185602,70960.183.08$42,036
May 20184032,73165.382.90$34,270
Apr 20183722,39663.842.90$30,699
Mar 20183953,25661.222.79$33,256
Feb 20185112,91161.782.77$39,622
Jan 20186002,95362.874.01$49,562
Dec 20175462,88257.272.92$39,689
Nov 20174652,33355.423.12$33,045
Oct 20175882,46349.292.98$36,331
Sep 20175352,50247.523.09$33,148
Aug 20174962,50945.373.00$30,042
Jul 20176722,44643.873.09$37,032
Jun 20174942,43142.493.09$28,495
May 20175382,42045.373.26$32,306
Apr 20174652,59547.933.21$30,622
Mar 20177632,55346.772.98$43,303
Feb 20174732,31350.452.95$30,692
Jan 20177952,43449.413.42$47,602
Dec 20166542,54148.763.72$41,349
Nov 20165932,41842.492.64$31,591
Oct 20167383,11946.193.09$43,727
Sep 20165943,91341.553.10$36,813
Aug 20167084,26041.442.92$41,797
Jul 20167672,59141.622.92$39,500
Jun 20167102,84745.352.69$39,845
May 20168793,49142.521.99$44,326
Apr 20168471,62336.561.99$34,198
Mar 20161,1232,27533.011.79$41,152
Feb 20168312,52926.472.06$27,215
Jan 20168112,58827.352.36$28,300
Dec 20153172,36332.362.00$14,987
Nov 20153482,26738.792.17$18,412
Oct 20154071,62243.552.43$21,661
Sep 20155471,21942.992.76$26,878
Aug 20157141,91740.162.87$34,181
Jul 20153941,07348.152.95$22,131
Jun 20153091,63456.152.88$22,061
May 20154342,01155.212.96$29,905
Apr 20154811,89449.822.71$29,090
Mar 20154182,54042.892.93$25,382
Feb 2015981,31044.662.98$8,275
Jan 2015841,01643.433.10$6,798
Dec 20141071,08554.693.59$9,748
Nov 20141031,01070.464.25$11,552
Oct 20141531,08978.303.90$16,228
Sep 20141031,10886.164.05$13,357
Aug 2014911,28789.394.04$13,328
Jul 20141211,00296.564.18$15,872
Jun 20141091,16298.164.74$16,204
May 20141281,22194.734.73$17,897
Apr 201415577995.944.81$18,617
Mar 201412537795.895.06$13,893
Feb 201413939297.406.19$15,966
Jan 20142443790.404.86$22,237
Dec 201325323291.824.35$24,241
Nov 201319216288.853.74$17,665
Oct 20132787497.423.78$27,362
Sep 20131701,251104.113.72$22,350
Aug 20132311,725104.253.52$30,158
Jul 20132961,752102.523.72$36,859
Jun 20132601,73694.403.93$31,372
May 20132081,78594.834.15$27,131
Apr 20131991,57493.964.28$25,439
Mar 201326295793.623.91$28,273
Feb 201319579291.233.42$20,498
Jan 20132001,10991.603.42$22,113
Dec 20121553,45086.773.42$25,249
Nov 20122203,73586.953.62$32,668
Oct 20122033,28189.383.40$29,298
Sep 20121654,14794.672.92$27,723
Aug 20122075,81992.662.91$36,103
Jul 20121975,66085.133.02$33,868
Jun 20122085,24779.822.52$29,820
May 20121905,27391.612.49$30,527
Apr 20122085,225101.652.00$31,576
Mar 20122234,500105.052.22$33,426
Feb 20122554,739101.102.57$37,961
Jan 20122423,45398.092.73$33,179
Dec 20112244,28996.873.24$35,594
Nov 20112232,73095.723.31$30,385
Oct 20112265,25484.983.65$38,375
Sep 20111654,48783.623.99$31,682
Aug 20111685,33583.404.15$36,148
Jul 20111605,31294.144.52$39,058
Jun 20111635,67492.904.64$41,469
May 20111425,93598.134.40$40,077
Apr 20111556,345105.964.33$43,918
Mar 20111376,63096.364.06$40,101
Feb 20111144,89485.644.18$30,220
Jan 20111286,73886.504.59$41,991
Dec 20101225,35285.734.35$33,728
Nov 20101524,67480.843.80$30,027
Oct 20101695,03478.103.51$30,863
Sep 20101496,02772.633.98$34,806
Aug 20101274,29073.684.42$28,316
Jul 20101355,25372.554.74$34,675
Jun 20101785,87970.364.91$41,392
May 20102246,92571.124.24$45,260
Apr 20102145,90981.694.12$41,843
Mar 20101536,55478.394.39$40,757
Feb 20101915,86573.585.44$45,973
Jan 20101956,37574.365.96$52,521
Dec 20092076,87271.445.48$52,472
Nov 20091997,10974.593.75$41,513
Oct 20092007,17972.544.11$44,015
Sep 20091933,31665.543.06$22,812
Aug 200916840567.423.22$12,630
Jul 20091663,20961.133.46$21,265
Jun 20091845,89966.163.90$35,150
May 20092155,48254.743.93$33,290
Apr 20092025,70346.773.59$29,907
Mar 20092306,45642.144.06$35,897
Feb 20092065,99032.814.63$34,511
Jan 20091995,77535.865.37$38,154
Dec 20081955,00437.105.98$37,144
Nov 20081183,59355.496.86$31,197
Oct 20081314,31775.246.92$39,739
Sep 20081421,137101.767.88$23,406
Aug 20081483,976114.228.48$50,633
Jul 20081443,860131.0811.39$62,839
Jun 20081444,063131.3313.03$71,863
May 20081444,249123.1711.57$66,916
Apr 20081463,787110.3110.45$55,698
Mar 20081584,335101.909.66$57,994
Feb 20081694,09292.538.77$51,527
Jan 20081533,72590.388.21$44,394
Dec 20071843,02288.337.30$38,319
Nov 20071713,91991.677.29$44,252
Oct 20071994,69782.856.92$49,000
Sep 20071784,11875.846.24$39,213
Aug 20072153,08969.066.39$34,580
Jul 20072254,06870.906.39$41,939
Jun 20072473,61162.007.55$42,571
May 20072074,86758.747.85$50,347
Apr 20071993,54859.617.81$39,555
Mar 20072483,87756.927.30$42,426
Feb 20072364,44555.108.22$49,524
Jan 20073024,98450.306.73$48,717
Dec 20063025,20256.656.92$53,098
Nov 20062545,12454.207.62$52,799
Oct 20062705,40454.906.01$47,322
Sep 20061904,94560.085.04$36,324
Aug 20061664,65568.717.34$45,573
Jul 20062134,35869.376.34$42,418
Jun 20062334,94966.286.38$47,037
May 20062815,53366.016.42$54,098
Apr 20063145,76464.397.36$62,644
Mar 20062915,49856.707.08$55,442
Feb 20062375,86157.597.75$59,078
Jan 20063246,67960.598.93$79,297
Dec 20054216,95854.9413.42$116,474
Nov 20053876,76054.6910.59$92,743
Oct 20053756,88958.3413.80$116,916
Sep 20052645,59261.4512.08$83,769
Aug 20052996,86061.519.80$85,598
Jul 20052604,58955.697.84$50,474
Jun 20051864,54752.337.38$43,295
May 20052204,64045.226.65$40,810
Apr 20051964,93149.207.36$45,938
Mar 20051485,07650.377.15$43,773
Feb 20051574,73345.226.31$36,974
Jan 20052314,67443.166.32$39,520
Dec 20042375,08639.866.75$43,783
Nov 20042564,59445.286.33$40,674
Oct 20042785,18449.706.52$47,591
Sep 20042365,54543.245.28$39,504
Aug 20042455,81642.375.55$42,663
Jul 20042065,17838.286.08$39,390
Jun 20041885,53936.106.43$42,419
May 20041545,41037.486.49$40,908
Apr 20042955,34634.475.86$41,488
Mar 20042584,97234.365.53$36,361
Feb 20042704,95232.455.51$36,045
Jan 20042884,99732.036.30$40,704
Dec 20032925,64830.266.30$44,428
Nov 20032505,57628.804.60$32,823
Oct 20032176,32628.174.76$36,222
Sep 20031935,70126.314.75$32,154
Aug 20031995,88929.765.13$36,131
Jul 20032295,94029.415.17$37,450
Jun 20032475,20728.565.98$38,208
May 20032745,21626.595.97$38,439
Apr 20032705,67826.675.41$37,903
Mar 20032996,01031.146.10$45,948
Feb 200329145833.487.93$13,373
Jan 200342853130.315.58$15,937
Dec 200224143126.914.85$8,577
Nov 200222973924.664.14$8,704
Oct 200226683626.464.23$10,574
Sep 20022371,30927.443.64$11,262
Aug 20024231,90625.963.16$17,012
Jul 20023201,95824.583.06$13,861
Jun 20023391,88523.733.34$14,337
May 20023432,22324.663.58$16,426
Apr 20022642,47023.653.51$14,919
Mar 20023182,82122.003.10$15,749
Feb 20026032,53818.222.38$17,016
Jan 20027912,97017.172.38$20,637
Dec 20018392,90716.932.36$21,078
Nov 20018122,91418.072.41$21,683
Oct 20013522,51219.782.53$13,315
Sep 20013112,47024.262.25$13,106
Aug 20012672,62324.873.05$14,649
Jul 20012402,74923.933.20$14,532
Jun 20012332,78824.563.82$16,384
May 20012532,95325.524.31$19,176
Apr 20012532,86824.685.34$21,546
Mar 20012702,85624.545.38$21,981
Feb 20012352,50227.755.77$20,950
Jan 20012842,55127.478.40$29,227
Dec 20002872,70926.889.12$32,427
Nov 20002782,59532.215.66$23,637
Oct 20002682,83031.235.15$22,931
Sep 20002702,72631.875.19$22,743
Aug 20002792,70429.644.54$20,548
Jul 20002752,81528.534.09$19,358
Jun 20002752,80329.304.40$20,383
May 20002883,02827.263.68$18,993
Apr 20004432,92524.513.12$19,972
Mar 20004424,95228.422.86$26,723
Feb 2000964,65427.622.73$15,341
Jan 2000612,59525.272.48$7,978
Dec 19991214,74424.282.42$14,436
Nov 19991114,65523.192.43$13,904
Oct 1999953,43220.982.80$11,615
Sep 19991073,10021.752.62$10,446
Aug 19991123,27219.262.88$11,566
Jul 19991173,68517.892.37$10,835
Jun 19991083,52415.942.36$10,046
May 19991223,84515.792.32$10,851
Apr 1999843,00115.102.21$7,895
Mar 1999853,15512.471.84$6,860
Feb 19991133,5759.981.82$7,626
Jan 19991214,15010.381.90$9,141
Dec 19981263,7649.201.77$7,834
Nov 19981253,31210.892.19$8,600
Oct 19981243,52512.421.97$8,482
Sep 19982348,02312.592.08$19,655
Aug 199824410,76211.301.91$23,284
Jul 19982388,59811.742.24$22,030
Jun 19982321,88111.242.24$6,816
May 19982562,10512.622.21$7,875
Apr 19981711,77713.042.51$6,682
Mar 19988393,68212.802.31$19,243
Feb 19986663,63013.952.30$17,637
Jan 19987764,21014.702.15$20,479
Dec 19978044,31016.322.41$23,513
Nov 19977544,47118.193.09$27,523
Oct 19977725,78719.253.15$33,089
Sep 19971121,30817.742.95$5,852
Aug 19973676317.862.55$2,592
Jul 19974992017.582.25$2,929
Jun 19975406,44217.242.26$23,850
May 19976227,33718.972.31$28,737
Apr 1997401,00917.882.08$2,817
Mar 199710315418.951.94$2,250
Feb 199710010220.492.21$2,274
Jan 19971232,16823.483.54$10,562
Dec 1996432,00523.32$1,003
Nov 1996421,34321.97$923
Oct 1996452,41523.31$1,049
Sep 19962091,39422.22$4,644
Aug 19962391,17620.26$4,842
Jul 19962521,25719.55$4,927
Jun 19962191,40818.73$4,102
May 19962731,58419.43$5,304
Apr 199615065421.51$3,227
Mar 19961501,14719.38$2,907
Feb 19961431,05416.98$2,428
Jan 199614099917.07$2,390
Dec 19951491,14417.19$2,561
Nov 19951411,17316.00$2,256
Oct 19951531,29915.43$2,361
Sep 19953901,42416.18$6,310
Aug 19953861,35115.92$6,145
Jul 19954181,42315.24$6,370
Jun 19953761,15216.41$6,170
May 19954031,14117.56$7,077
Apr 19954303,99517.73$7,624
Mar 19954904,21116.44$8,056
Feb 19954713,89916.58$7,809
Jan 19955204,56615.92$8,278
Dec 19944933,94315.03$7,410
Nov 19945004,33115.90$7,950
Oct 19945324,63615.58$8,289
Sep 19944023,15915.29$6,147
Aug 19944743,71016.13$7,646
Jul 19945163,56917.56$9,061
Jun 19945332,98517.09$9,109
May 19945523,08115.88$8,766
Apr 19945193,24714.14$7,339
Mar 19944202,12712.46$5,233
Feb 19943252,09312.50$4,063
Jan 19943552,47612.66$4,494
Dec 19933832,10612.33$4,722
Nov 19934072,22314.49$5,897
Oct 19935232,59315.85$8,290
Sep 19932832,43715.03$4,253
Aug 19932752,11515.66$4,307
Jul 19933081,88415.46$4,762
Jun 19932891,89216.79$4,852
May 19932821,82117.68$4,986
Apr 19932731,86218.05$4,928
Mar 19932522,04718.14$4,571
Feb 19932682,23917.90$4,797
Jan 19934152,36116.93$7,026

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        31 Mcf  × $  3.05 =        $94

────────────────────────────────────────────────────
Month total                                      $94

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/4410 is the state's own key, not one this site invented.