SEALY-SMITH FOUNDATION -A-

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

Oil lease lease 4406District 08Field 62417001Hydrogen sulphide fieldNGPA filingOilCasinghead gasSaveExport
Value, all time
$8.0 M
Jan 1993 – May 2026
Value, last 12 filed months
$0
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 18 leases and 47 wells, and the rule below applies to all of them.

Discovered
1944-03-12
as the register files it
Field class
Oil and gas
the register's own label
Between wells
0 ft
minimum
From a lease line
330 ft
minimum

A drilling unit in this field needs at least 10 acres. The field rule took effect on 2019-06-01.

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: AND RECOMMENDATION

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
NGPA2none

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
OilDisposition77,022 bbl$2,138,112
Casinghead gasProduction1,484,139 Mcf$5,842,471
Total$7,980,583

245,093 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 (13)

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 31.7218, -102.9388. A lease has no coordinate of its own — that point is the mean of its wells, and they span 1.8 miles.

31.71828, -102.93923 · 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
84.6%
11 of 13 wells
With a plug date
46.2%
6 of 13 wells
Median depth
6,305 ft
13 wells filed one
Completion to plug
18.0 years
median over 5 wells

What the state filed about each well

On the RRC proration schedule
1184.6%
A plug date is filed
646.2%
BothOn the schedule and plugged. Neither fact cancels the other.
646.2%
NeitherNo plug date, and not on the schedule.
215.4%

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, 13 of 13 wells. Median 6,305 ft, with the middle half between 6,200 and 10,190 ft; the shallowest is 5,713 ft and the deepest 12,684 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, 11 of 13 wells, Mar 1981 – 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
Mar 1981 – Apr 2018
11 of 13 wells; 2 filed none
Plug dates filed
Apr 1982 – Jan 2023
6 of 13 wells; 7 filed none

Last completion to plug: a median of 18.0 years across the 5 wells that filed both dates, with the middle half between 6.4 years and 23.6 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

13 wells

42-49505276196,200 ftApr 1982Yes
42-4950529716,305 ft
42-495300743810,235 ftApr 2018Yes
42-49532614696,400 ftFeb 2018Jan 2023Yes
42-49505279225,713 ftFeb 2018Yes
42-49530206416,240 ftAug 2001Yes
42-49530200406,200 ftFeb 2000Yes
42-4950529566,147 ftJul 1998Dec 2004Yes
42-49530194396,200 ftJun 1998Jan 2022Yes
42-495033813010,190 ftOct 1995Oct 2013Yes
42-495033802912,684 ftFeb 1994Yes
42-495033863412,455 ftOct 1993
42-49530973438,365 ftMar 1981Dec 2012Yes

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 202600106.413.05$0
Apr 20260098.932.87$0
Mar 20260089.753.15$0
Feb 20260063.503.75$0
Jan 20260059.138.00$0
Dec 20250056.664.41$0
Nov 20250058.593.93$0
Oct 20250059.383.30$0
Sep 20250062.743.08$0
Aug 20250063.933.01$0
Jul 20250066.743.32$0
Jun 20250066.483.13$0
May 20250060.553.23$0
Apr 20250062.363.54$0
Mar 20250067.704.27$0
Feb 20250070.884.34$0
Jan 202538074.324.28$2,824
Dec 202434068.993.12$2,346
Nov 2024227669.052.20$1,686
Oct 2024317871.372.28$2,390
Sep 2024107969.612.36$883
Aug 2024156375.632.06$1,264
Jul 2024106079.932.15$928
Jun 2024165478.082.63$1,392
May 2024229478.812.20$1,940
Apr 20242710584.451.66$2,454
Mar 20241811080.301.55$1,615
Feb 20241010776.091.78$952
Jan 20241110173.023.30$1,136
Dec 20231210571.262.61$1,129
Nov 2023157377.892.81$1,373
Oct 20231611585.443.09$1,722
Sep 20231712389.042.74$1,850
Aug 20231410780.522.67$1,413
Jul 20231312174.852.64$1,293
Jun 20231611868.962.26$1,370
May 20231311970.622.23$1,183
Apr 20231511578.122.24$1,429
Mar 20231311672.852.39$1,225
Feb 20231719175.112.47$1,748
Jan 20231919276.533.39$2,105
Dec 20223520376.415.73$3,837
Nov 20222828385.005.65$3,978
Oct 20222131287.185.86$3,660
Sep 20221944884.888.16$5,270
Aug 20222746694.529.13$6,805
Jul 202227668101.587.54$7,781
Jun 202216389115.097.98$4,945
May 202233562109.378.43$8,349
Apr 202229494104.226.84$6,400
Mar 202222597108.885.08$5,426
Feb 20221566591.054.86$4,597
Jan 20221270281.844.54$4,168
Dec 20211373471.323.90$3,789
Nov 20211673177.435.24$5,067
Oct 2021232,11479.795.71$13,914
Sep 2021194,27369.865.35$24,192
Aug 202104,69966.024.22$19,833
Jul 202102,17070.783.98$8,641
Jun 202102,98369.493.38$10,084
May 202113,18163.483.02$9,663
Apr 2021143,00760.362.76$9,140
Mar 2021283,35961.302.72$10,843
Feb 2021313,36057.805.55$20,433
Jan 2021293,61450.412.81$11,618
Dec 2020273,78644.642.68$11,335
Nov 2020483,92138.772.71$12,473
Oct 20201853,92736.972.48$16,572
Sep 20202013,70337.091.99$14,828
Aug 20201683,99639.982.39$16,248
Jul 2020744,19738.371.83$10,499
Jun 2020194,51134.901.69$8,288
May 2020264,85916.921.81$9,258
Apr 20202149314.751.80$1,199
Mar 2020245,74430.341.86$11,390
Feb 202035049.881.98$1,746
Jan 202077057.252.09$4,408
Dec 201984059.012.30$4,957
Nov 201981055.302.75$4,479
Oct 201989053.472.42$4,759
Sep 201965055.052.66$3,578
Aug 201924053.112.30$1,275
Jul 201927056.272.46$1,519
Jun 201919052.782.49$1,003
May 201920058.482.74$1,170
Apr 201924062.632.75$1,503
Mar 2019248056.803.06$1,608
Feb 2019166750.852.79$1,001
Jan 2019176946.033.23$1,005
Dec 2018236546.594.19$1,344
Nov 201876852.934.24$659
Oct 2018168561.443.40$1,272
Sep 2018208359.543.11$1,449
Aug 2018297359.403.07$1,946
Jul 2018374165.142.93$2,530
Jun 2018514260.183.08$3,198
May 2018374265.382.90$2,541
Apr 2018353963.842.90$2,348
Mar 2018365061.222.79$2,343
Feb 2018444661.782.77$2,846
Jan 2018374562.874.01$2,507
Dec 2017234457.272.92$1,446
Nov 2017224255.423.12$1,350
Oct 2017255349.292.98$1,390
Sep 2017213347.523.09$1,100
Aug 2017203445.373.00$1,010
Jul 2017273243.873.09$1,283
Jun 2017203342.493.09$952
May 2017223245.373.26$1,103
Apr 2017193447.933.21$1,020
Mar 2017313446.772.98$1,551
Feb 2017193150.452.95$1,050
Jan 2017303249.413.42$1,592
Dec 2016243548.763.72$1,301
Nov 2016233542.492.64$1,070
Oct 2016304946.193.09$1,537
Sep 2016235441.553.10$1,123
Aug 2016255541.442.92$1,197
Jul 2016375741.622.92$1,707
Jun 2016485745.352.69$2,330
May 2016761,10742.521.99$5,436
Apr 2016863,30636.561.99$9,727
Mar 20161345,60633.011.79$14,481
Feb 2016763,92026.472.06$10,101
Jan 20163291,21527.352.36$11,871
Dec 20153643,94932.362.00$19,683
Nov 20151012,74738.792.17$9,871
Oct 2015202943.552.43$941
Sep 2015273742.992.76$1,263
Aug 2015366640.162.87$1,635
Jul 2015213748.152.95$1,120
Jun 2015155756.152.88$1,007
May 20151715155.212.96$1,385
Apr 2015152549.822.71$815
Mar 20151189842.892.93$3,107
Feb 2015121,42344.662.98$4,771
Jan 2015141,43043.433.10$5,042
Dec 2014181,50754.693.59$6,397
Nov 2014171,40370.464.25$7,163
Oct 2014511,51378.303.90$9,895
Sep 2014171,53986.164.05$7,691
Aug 2014151,75089.394.04$8,402
Jul 2014201,35996.564.18$7,611
Jun 2014181,60498.164.74$9,365
May 2014212,73994.734.73$14,935
Apr 20142512,94195.944.81$64,633
Mar 2014189,56395.895.06$50,084
Feb 20142187497.406.19$7,457
Jan 2014303,68590.404.86$20,624
Dec 2013206,46091.824.35$29,966
Nov 201365,36088.853.74$20,570
Oct 201347,40997.423.78$28,391
Sep 2013183,153104.113.72$13,596
Aug 2013242,459104.253.52$11,164
Jul 2013372,474102.523.72$12,991
Jun 2013402,42794.403.93$13,322
May 2013282,48094.834.15$12,945
Apr 2013362,61293.964.28$14,569
Mar 2013413,00893.623.91$15,608
Feb 2013212,56791.233.42$10,695
Jan 2013212,82291.603.42$11,575
Dec 2012192,71986.773.42$10,948
Nov 2012282,97986.953.62$13,233
Oct 2012272,94789.383.40$12,432
Sep 2012272,75594.672.92$10,596
Aug 2012333,40392.662.91$12,954
Jul 2012283,34985.133.02$12,500
Jun 2012303,08179.822.52$10,156
May 2012273,09291.612.49$10,167
Apr 2012303,088101.652.00$9,216
Mar 2012313,874105.052.22$11,865
Feb 2012362,808101.102.57$10,857
Jan 2012345,02898.092.73$17,082
Dec 2011322,77296.873.24$12,080
Nov 2011291,67095.723.31$8,306
Oct 2011332,89684.983.65$13,371
Sep 2011282,52083.623.99$12,386
Aug 2011363,09983.404.15$15,861
Jul 2011633,15694.144.52$20,187
Jun 2011603,48492.904.64$21,739
May 2011283,43998.134.40$17,896
Apr 2011313,445105.964.33$18,213
Mar 2011303,40396.364.06$16,698
Feb 2011242,30585.644.18$11,690
Jan 2011313,05886.504.59$16,714
Dec 2010303,96185.734.35$19,793
Nov 2010363,81180.843.80$17,374
Oct 2010562,90478.103.51$14,563
Sep 2010593,64472.633.98$18,786
Aug 2010323,15073.684.42$16,279
Jul 2010613,58972.554.74$21,425
Jun 2010783,58670.364.91$23,097
May 2010933,73171.124.24$22,416
Apr 2010573,66881.694.12$19,778
Mar 2010263,60878.394.39$17,872
Feb 2010343,14873.585.44$19,634
Jan 2010393,23974.365.96$22,218
Dec 2009373,14471.445.48$19,884
Nov 2009373,16774.593.75$14,641
Oct 2009373,18572.544.11$15,775
Sep 200922265.543.06$199
Aug 2009194867.423.22$1,435
Jul 2009551,12461.133.46$7,256
Jun 2009993,69266.163.90$20,930
May 2009933,37454.743.93$18,336
Apr 2009853,05246.773.59$14,925
Mar 2009983,22042.144.06$17,200
Feb 2009883,12732.814.63$17,375
Jan 2009922,80035.865.37$18,338
Dec 2008782,93637.105.98$20,443
Nov 2008574,70155.496.86$35,413
Oct 2008703,37775.246.92$28,642
Sep 2008596,116101.767.88$54,180
Aug 2008943,961114.228.48$44,338
Jul 20081143,707131.0811.39$57,164
Jun 20081133,394131.3313.03$59,073
May 20081343,232123.1711.57$53,913
Apr 20081143,281110.3110.45$46,878
Mar 20081343,331101.909.66$45,846
Feb 20081693,26792.538.77$44,291
Jan 20081433,95990.388.21$45,411
Dec 20071555,42588.337.30$53,304
Nov 20071424,36791.677.29$44,860
Oct 20071414,82082.856.92$45,046
Sep 20071074,12875.846.24$33,891
Aug 20071663,00869.066.39$30,679
Jul 20071965,58370.906.39$49,560
Jun 20071497,78062.007.55$67,965
May 20071275,77558.747.85$52,772
Apr 20071083,36359.617.81$32,687
Mar 20071448,06456.927.30$67,080
Feb 20071584,35155.108.22$44,454
Jan 20071996,27050.306.73$52,187
Dec 20061845,90756.656.92$51,291
Nov 20061766,54954.207.62$59,426
Oct 20062025,09054.906.01$41,700
Sep 20061215,21160.085.04$33,519
Aug 20061587,38268.717.34$65,039
Jul 20061427,95569.376.34$60,307
Jun 20061625,91666.286.38$48,504
May 20062137,56466.016.42$62,659
Apr 20062427,89364.397.36$73,679
Mar 20062008,69156.707.08$72,898
Feb 20061786,78557.597.75$62,842
Jan 20061877,31960.598.93$76,713
Dec 20052327,30154.9413.42$110,692
Nov 20052026,93454.6910.59$84,467
Oct 20051956,75158.3413.80$104,511
Sep 20052036,82961.4512.08$94,962
Aug 20052957,16761.519.80$88,359
Jul 20052787,36855.697.84$73,274
Jun 20052675,69552.337.38$56,007
May 20052495,02345.226.65$44,669
Apr 20052375,26549.207.36$50,413
Mar 20052425,94150.377.15$54,697
Feb 20051695,81445.226.31$44,340
Jan 20051906,31243.166.32$48,106
Dec 20042315,69639.866.75$47,662
Nov 20042735,24645.286.33$45,571
Oct 20042238,27649.706.52$65,002
Sep 20042125,68143.245.28$39,185
Aug 20041615,29442.375.55$36,207
Jul 20041928,41638.286.08$58,554
Jun 20042041,00236.106.43$13,810
May 20042028,41937.486.49$62,249
Apr 20041925,89634.475.86$41,160
Mar 20042288,15834.365.53$52,949
Feb 20042706,86432.455.51$46,580
Jan 20042568,60432.036.30$62,402
Dec 200326416730.266.30$9,041
Nov 20032505,12528.804.60$30,750
Oct 20034364,07928.174.76$31,697
Sep 20032287,67026.314.75$42,426
Aug 20032538,08429.765.13$48,998
Jul 20031815,23629.415.17$32,398
Jun 20031905,34528.565.98$37,405
May 20032125,22426.595.97$36,838
Apr 20032748,03826.675.41$50,771
Mar 20032528,89531.146.10$62,072
Feb 20032218,72033.487.93$76,513
Jan 200329610,15330.315.58$65,646
Dec 20022529,46126.914.85$52,703
Nov 20022269,83924.664.14$46,277
Oct 20022549,37826.464.23$46,382
Sep 20022599,79927.443.64$42,728
Aug 20022769,52425.963.16$37,300
Jul 20021668,29824.583.06$29,487
Jun 20022548,77023.733.34$35,304
May 20023389,79424.663.58$43,437
Apr 20022707,52223.653.51$32,805
Mar 20022937,10922.003.10$28,503
Feb 20022406,33018.222.38$19,411
Jan 20022417,19017.172.38$21,219
Dec 20012466,61816.932.36$19,812
Nov 20012537,06618.072.41$21,569
Oct 20013526,46119.782.53$23,302
Sep 20013126,35424.262.25$21,874
Aug 20013096,74424.873.05$28,275
Jul 20013046,98923.933.20$29,619
Jun 20012346,32624.563.82$29,939
May 20012466,49225.524.31$34,241
Apr 20012536,50824.685.34$40,966
Mar 20012706,48024.545.38$41,465
Feb 20012355,72927.755.77$39,561
Jan 20012846,53727.478.40$62,704
Dec 20002876,94426.889.12$71,061
Nov 20002806,88232.215.66$47,957
Oct 20002677,50931.235.15$46,976
Sep 20002706,98631.875.19$44,838
Aug 20002796,92929.644.54$39,732
Jul 20002757,21528.534.09$37,353
Jun 20002757,18329.304.40$39,643
May 20002857,76027.263.68$36,324
Apr 20002627,45624.513.12$29,655
Mar 20002247,00728.422.86$26,404
Feb 20002196,58527.622.73$24,003
Jan 20002587,11425.272.48$24,166
Dec 19992726,71324.282.42$22,875
Nov 19992436,36923.192.43$21,137
Oct 19992024,54620.982.80$16,984
Sep 19991936,36621.752.62$20,869
Aug 19992096,94519.262.88$23,996
Jul 19992087,45317.892.37$21,402
Jun 19992168,04115.942.36$22,437
May 19992197,89515.792.32$21,782
Apr 19991636,16215.102.21$16,067
Mar 19997057,99312.471.84$23,485
Feb 19996787,9919.981.82$21,292
Jan 19997269,27510.381.90$25,158
Dec 19987568,4139.201.77$21,874
Nov 19987356,76910.892.19$22,799
Oct 19987117,44512.421.97$23,491
Sep 19981694,42412.592.08$11,341
Aug 19982067,40211.301.91$16,446
Jul 19982025,91411.742.24$15,603
Jun 19982126,24411.242.24$16,352
May 19982356,99012.622.21$18,388
Apr 19981485,90113.042.51$16,714
Mar 1998811,24212.802.31$3,905
Feb 19982505,71613.952.30$16,629
Jan 19982916,62814.702.15$18,560
Dec 19973016,78616.322.41$21,274
Nov 19972837,04018.193.09$26,889
Oct 19972909,11219.253.15$34,284
Sep 19978883517.742.95$4,028
Aug 1997721,04117.862.55$3,945
Jul 1997851,25517.582.25$4,314
Jun 19971351,12417.242.26$4,864
May 19971701,28018.972.31$6,180
Apr 19976707,89317.882.08$28,419
Mar 19976189,68718.951.94$30,496
Feb 19975954,46820.492.21$22,048
Jan 1997752,33523.483.54$10,026
Dec 1996652,15923.32$1,516
Nov 1996631,44621.97$1,384
Oct 1996692,60023.31$1,608
Sep 19965014,18322.22$11,132
Aug 19965443,25720.26$11,021
Jul 19967641919.55$1,486
Jun 19966646918.73$1,236
May 19968652819.43$1,671
Apr 19963631,64121.51$7,808
Mar 19966765,27619.38$13,101
Feb 19966454,84716.98$10,952
Jan 19966304,59617.07$10,754
Dec 19956705,26117.19$11,517
Nov 19956345,39416.00$10,144
Oct 19956765,97615.43$10,431
Sep 19957495,82416.18$12,119
Aug 19957425,52515.92$11,813
Jul 19958045,82015.24$12,253
Jun 19957234,71016.41$11,864
May 19957764,66717.56$13,627
Apr 19958276,55117.73$14,663
Mar 19959426,76316.44$15,486
Feb 19959066,26316.58$15,021
Jan 19951,0007,33415.92$15,920
Dec 19949486,33415.03$14,248
Nov 19949626,95815.90$15,296
Oct 19941,0187,44715.58$15,860
Sep 19945403,46515.29$8,257
Aug 19941,0306,08116.13$16,614
Jul 19941,1215,85117.56$19,685
Jun 19941,1584,89217.09$19,790
May 19941,2005,05015.88$19,056
Apr 19941,1285,32314.14$15,950
Mar 19949133,48712.46$11,376
Feb 19946513,19112.50$8,138
Jan 19946664,64712.66$8,432
Dec 19939666,10312.33$11,911
Nov 19931,0296,44414.49$14,910
Oct 19931,4568,22715.85$23,078
Sep 19937887,73215.03$11,844
Aug 19937666,71015.66$11,996
Jul 19938575,96315.46$13,249
Jun 19938176,00116.79$13,717
May 19937795,77417.68$13,773
Apr 19937565,90718.05$13,646
Mar 19937086,49318.14$12,843
Feb 19937387,54817.90$13,210
Jan 19939417,95616.93$15,931

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.

Jan 2025 — as filed, then multipliedworked
Oil                   38 bbl  × $ 74.32 =     $2,824
Casinghead gas         0 Mcf  × $  4.28 =         $0

────────────────────────────────────────────────────
Month total                                   $2,824

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/4406 is the state's own key, not one this site invented.