SEALY-SMITH FOUNDATION -A-

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

Oil lease lease 4409District 08Field 62417360OilCasinghead gasSave
Value, all time
$44.8 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

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
OilDisposition1,182,601 bbl$41,519,246
Casinghead gasProduction873,817 Mcf$3,283,563
Total$44,802,809

210,651 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 (10)

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 31.7257, -102.9400. A lease has no coordinate of its own — that point is the mean of its wells, and they span 1.4 miles.

31.72514, -102.93957 · 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
80.0%
8 of 10 wells
With a plug date
10.0%
1 of 10 wells
Median depth
12,571 ft
10 wells filed one
Completion to plug
17.8 years
median over 1 wells

What the state filed about each well

On the RRC proration schedule
880.0%
A plug date is filed
110.0%
BothOn the schedule and plugged. Neither fact cancels the other.
110.0%
NeitherNo plug date, and not on the schedule.
220.0%

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

0k
2k
4k
6k
8k
10k
12k
15k
20k+

Total depth in feet, 10 of 10 wells. Median 12,571 ft, with the middle half between 12,463 and 12,746 ft; the shallowest is 12,150 ft and the deepest 13,200 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

80s
90s
00s
10s

Last completion by decade, 10 of 10 wells, Sep 1987 – Jul 2015. This is the LAST completion filed on each wellbore, not the first — a well recompleted in 2019 counts once, in the 2010s.

Completions filed
Sep 1987 – Jul 2015
10 of 10 wells
Plug dates filed
May 2022
1 of 10 wells; 9 filed none

Last completion to plug: a median of 17.8 years across the 1 well that filed both dates, with the middle half between 17.8 years and 17.8 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

10 wells

42-4950338432 L12,150 ftJul 2015
42-4950527720 T13,200 ftAug 2009Yes
42-4950529827 L12,573 ftJul 2008
42-495033873512,569 ftAug 2004May 2022Yes
42-495052782113,140 ftJun 1997Yes
42-4950338634 L12,455 ftOct 1993Yes
42-4950338331 L12,488 ftMay 1992Yes
42-495033853312,439 ftMar 1990Yes
42-4950528124 L12,600 ftNov 1988Yes
42-4950528023 L12,795 ftSep 1987Yes

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 20250074.324.28$0
Dec 20240068.993.12$0
Nov 20240069.052.20$0
Oct 20240071.372.28$0
Sep 2024025569.612.36$603
Aug 2024053375.632.06$1,100
Jul 2024050979.932.15$1,093
Jun 2024046778.082.63$1,230
May 2024050378.812.20$1,106
Apr 2024058184.451.66$964
Mar 2024056880.301.55$878
Feb 2024051176.091.78$911
Jan 2024047873.023.30$1,576
Dec 2023050171.262.61$1,308
Nov 2023035177.892.81$985
Oct 2023054485.443.09$1,679
Sep 2023058489.042.74$1,597
Aug 2023050580.522.67$1,350
Jul 2023057374.852.64$1,514
Jun 2023056268.962.26$1,269
May 2023056370.622.23$1,254
Apr 2023054578.122.24$1,220
Mar 2023052472.852.39$1,254
Feb 2023060675.112.47$1,494
Jan 2023060576.533.39$2,050
Dec 2022864276.415.73$4,289
Nov 20222061585.005.65$5,172
Oct 20221553987.185.86$4,468
Sep 20221542284.888.16$4,718
Aug 20222349494.529.13$6,683
Jul 202216209101.587.54$3,202
Jun 20222368115.097.98$3,190
May 202262132109.378.43$7,894
Apr 202250107104.226.84$5,943
Mar 2022365108.885.08$3,945
Feb 20220091.054.86$0
Jan 20220081.844.54$0
Dec 20210071.323.90$0
Nov 20210077.435.24$0
Oct 20210079.795.71$0
Sep 20210069.865.35$0
Aug 20210066.024.22$0
Jul 20210070.783.98$0
Jun 20210069.493.38$0
May 20210063.483.02$0
Apr 20210060.362.76$0
Mar 20210061.302.72$0
Feb 20210057.805.55$0
Jan 20210050.412.81$0
Dec 20200044.642.68$0
Nov 20200038.772.71$0
Oct 20200036.972.48$0
Sep 20200037.091.99$0
Aug 20200039.982.39$0
Jul 20200038.371.83$0
Jun 20200034.901.69$0
May 20200016.921.81$0
Apr 20200014.751.80$0
Mar 202022030.341.86$667
Feb 202075049.881.98$3,741
Jan 202098057.252.09$5,611
Dec 201990059.012.30$5,311
Nov 201987055.302.75$4,811
Oct 2019132053.472.42$7,058
Sep 2019144055.052.66$7,927
Aug 2019253053.112.30$13,437
Jul 2019342056.272.46$19,244
Jun 2019314052.782.49$16,573
May 2019375058.482.74$21,930
Apr 2019302062.632.75$18,914
Mar 20192713956.803.06$15,512
Feb 20191673350.852.79$8,584
Jan 20191995146.033.23$9,325
Dec 20182976146.594.19$14,093
Nov 2018483452.934.24$2,685
Oct 2018824161.443.40$5,177
Sep 2018894059.543.11$5,423
Aug 2018833359.403.07$5,031
Jul 20180065.142.93$0
Jun 20180060.183.08$0
May 20180065.382.90$0
Apr 20180063.842.90$0
Mar 20180061.222.79$0
Feb 20180061.782.77$0
Jan 20180062.874.01$0
Dec 20170057.272.92$0
Nov 20170055.423.12$0
Oct 20170049.292.98$0
Sep 20170047.523.09$0
Aug 20170045.373.00$0
Jul 20170043.873.09$0
Jun 20170042.493.09$0
May 20170045.373.26$0
Apr 20170047.933.21$0
Mar 20170046.772.98$0
Feb 20170050.452.95$0
Jan 20170049.413.42$0
Dec 20160048.763.72$0
Nov 20160042.492.64$0
Oct 20160046.193.09$0
Sep 20160041.553.10$0
Aug 20160041.442.92$0
Jul 20160041.622.92$0
Jun 20160045.352.69$0
May 20160042.521.99$0
Apr 20160036.561.99$0
Mar 20160033.011.79$0
Feb 20160026.472.06$0
Jan 20160027.352.36$0
Dec 20150032.362.00$0
Nov 20150038.792.17$0
Oct 20150043.552.43$0
Sep 20150042.992.76$0
Aug 20150040.162.87$0
Jul 20150048.152.95$0
Jun 20150056.152.88$0
May 201546455.212.96$2,551
Apr 20152718549.822.71$13,731
Mar 201548820042.892.93$21,517
Feb 20157086044.662.98$31,798
Jan 20155921643.433.10$25,760
Dec 2014658854.693.59$36,015
Nov 2014752270.464.25$52,994
Oct 20141,27314978.303.90$100,257
Sep 20141,12177386.164.05$99,712
Aug 20141,14890489.394.04$106,267
Jul 20141,55773996.564.18$153,433
Jun 20141,24374798.164.74$125,551
May 20141,5041,16594.734.73$147,980
Apr 20141,9586,45895.944.81$218,908
Mar 20141,3024,44195.895.06$147,306
Feb 20141,39543997.406.19$138,591
Jan 20142,2381,78390.404.86$210,982
Dec 20131,8193,25391.824.35$181,186
Nov 20131,4412,72588.853.74$138,220
Oct 20132,1893,72497.423.78$227,327
Sep 20131,5481,674104.113.72$167,386
Aug 20131,6751,208104.253.52$178,874
Jul 20132,1911,265102.523.72$229,324
Jun 20132,0721,06194.403.93$199,770
May 20132,08773794.834.15$200,968
Apr 20131,7451,14693.964.28$168,868
Mar 20132,1102,07593.623.91$205,657
Feb 20131,6011,66091.233.42$151,736
Jan 20131,6851,80291.603.42$160,509
Dec 20121,4731,61486.773.42$133,332
Nov 20121,8201,38986.953.62$163,284
Oct 20122,1371,24189.383.40$195,224
Sep 20122,31614194.672.92$219,667
Aug 20122,3871,60192.662.91$225,835
Jul 20122,2781,71485.133.02$199,104
Jun 20122,2231,60279.822.52$181,475
May 20122,0091,67291.612.49$188,205
Apr 20122,1741,731101.652.00$224,444
Mar 20122,3552,041105.052.22$251,928
Feb 20122,5641,604101.102.57$263,343
Jan 20122,4522,79698.092.73$248,161
Dec 20112,3371,51896.873.24$231,303
Nov 20112,21989395.723.31$215,360
Oct 20112,7011,71784.983.65$235,796
Sep 20112,3381,45583.623.99$201,303
Aug 20112,8161,75383.404.15$242,128
Jul 20112,9171,70894.144.52$282,322
Jun 20112,5331,60392.904.64$242,753
May 20112,5432,13498.134.40$258,944
Apr 20112,7622,380105.964.33$302,975
Mar 20112,3172,31196.364.06$232,643
Feb 20112,0321,64285.644.18$180,884
Jan 20112,4302,07986.504.59$219,735
Dec 20103,1152,79885.734.35$279,214
Nov 20103,4462,51780.843.80$288,127
Oct 20104,0242,87178.103.51$324,348
Sep 20101,9051,42672.633.98$144,035
Aug 20102,1671,78073.684.42$167,531
Jul 20102,1572,12972.554.74$166,574
Jun 20102,6451,99270.364.91$195,884
May 20103,0172,13871.124.24$223,624
Apr 20103,1162,63281.694.12$265,397
Mar 20101,3341,84978.394.39$112,687
Feb 20103,2852,50073.585.44$255,316
Jan 20102,8791,53474.365.96$223,231
Dec 20091,78773871.445.48$131,710
Nov 20092,6362,53074.593.75$206,111
Oct 20093,0463,22172.544.11$234,196
Sep 20092,6231,60665.543.06$176,833
Aug 20092,62521967.423.22$177,682
Jul 20092,9922,02861.133.46$189,927
Jun 20093,3584,85266.163.90$241,064
May 20093,0654,18054.743.93$184,188
Apr 20092,9383,54446.773.59$150,124
Mar 20093,1772,60542.144.06$144,452
Feb 20093,1372,64432.814.63$115,175
Jan 20093,1382,46035.865.37$125,741
Dec 20083,1122,94137.105.98$133,034
Nov 20082,7243,62855.496.86$176,044
Oct 20083,1633,14775.246.92$259,768
Sep 20083,0607,316101.767.88$369,014
Aug 20082,9203,162114.228.48$360,346
Jul 20082,1182,105131.0811.39$301,602
Jun 20082,9513,128131.3313.03$428,321
May 20082,9212,911123.1711.57$393,472
Apr 20082,9783,153110.3110.45$361,467
Mar 20082,9852,777101.909.66$331,009
Feb 20082,0061,67992.538.77$200,341
Jan 20081,8402,35290.388.21$185,599
Dec 20072,2032,90488.337.30$215,796
Nov 20073,1193,45791.677.29$311,126
Oct 20072,1212,67282.856.92$194,220
Sep 20072,0932,17475.846.24$172,308
Aug 20072,4541,72969.066.39$180,518
Jul 20072,1582,12370.906.39$166,564
Jun 20072,0903,21262.007.55$153,826
May 200768178958.747.85$46,193
Apr 20071,9491,91659.617.81$131,135
Mar 20072,8764,14156.927.30$193,939
Feb 20072,4742,45955.108.22$156,521
Jan 20073,0913,35450.306.73$178,039
Dec 20062,4582,72156.656.92$158,071
Nov 20062,7904,01354.207.62$181,787
Oct 20062,8333,07954.906.01$174,048
Sep 20063,2333,79160.085.04$213,335
Aug 20063,1404,39168.717.34$247,979
Jul 20063,7574,86469.376.34$291,474
Jun 20063,5884,38266.286.38$265,787
May 20063,1004,68166.016.42$234,706
Apr 20061,5251,77764.397.36$111,274
Mar 20063,2094,57156.707.08$214,326
Feb 20062,7753,36157.597.75$185,864
Jan 20063,2244,26060.598.93$233,398
Dec 20053,1713,88654.9413.42$226,347
Nov 20053,2034,05554.6910.59$218,108
Oct 20052,8123,41058.3413.80$211,096
Sep 20052,7133,91961.4512.08$214,051
Aug 20051,4261,57161.519.80$103,104
Jul 20051,5141,32455.697.84$94,700
Jun 20053,1962,28652.337.38$184,120
May 20053,9212,82045.226.65$196,064
Apr 20053,8503,19149.207.36$212,907
Mar 20054,2213,93450.377.15$240,759
Feb 20053,6803,11545.226.31$186,071
Jan 20053,1753,31743.166.32$158,004
Dec 20043,3573,22439.866.75$155,576
Nov 20044,1484,52045.286.33$216,435
Oct 20044,2775,01249.706.52$245,221
Sep 20044,0655,59543.245.28$205,334
Aug 20044,3805,11642.375.55$213,978
Jul 20043,9944,31938.286.08$179,168
Jun 20044,3335,40736.106.43$191,205
May 20044,6625,29637.486.49$209,127
Apr 20044,2534,81334.475.86$174,798
Mar 20044,1204,25434.365.53$165,088
Feb 20044,5484,58032.455.51$172,817
Jan 20044,7624,78532.036.30$182,671
Dec 20034,4404,62730.266.30$163,512
Nov 20035,1634,53728.804.60$169,543
Oct 20035,2694,29828.174.76$168,885
Sep 20034,0503,39826.314.75$122,694
Aug 20035,6154,90229.765.13$192,248
Jul 20036,07812,70429.415.17$244,444
Jun 20035,1324,39628.565.98$172,871
May 20034,0878,37926.595.97$158,718
Apr 20034,0064,35526.675.41$130,389
Mar 20034,2704,53731.146.10$160,626
Feb 20034,0884,24333.487.93$170,496
Jan 20032,7801,98430.315.58$95,337
Dec 20025,0985,97926.914.85$166,208
Nov 20025,6016,74424.664.14$166,020
Oct 20025,5686,63826.464.23$175,402
Sep 20026,7158,27927.443.64$214,355
Aug 20024,0543,91025.963.16$117,614
Jul 20024,7596,31624.583.06$136,314
Jun 20023,3493,64023.733.34$91,623
May 20026,6907,90824.663.58$193,318
Apr 20026,8527,64123.653.51$188,887
Mar 20026,9588,73822.003.10$180,188
Feb 20024,9466,33918.222.38$105,176
Jan 20025,4955,79817.172.38$108,123
Dec 20015,9884,98116.932.36$113,154
Nov 20015,9005,09418.072.41$118,867
Oct 20015,2983,13319.782.53$112,717
Sep 20015,6543,32224.262.25$144,645
Aug 20014,5501,55724.873.05$117,912
Jul 20016,7342,21323.933.20$168,220
Jun 20017,0882,46024.563.82$183,489
May 20017,4142,50025.524.31$199,974
Apr 20017,1322,58324.685.34$189,799
Mar 20017,8683,09524.545.38$209,721
Feb 20016,5962,68827.755.77$198,541
Jan 20017,8552,54527.478.40$237,152
Dec 20007,3312,71826.889.12$221,852
Nov 20007,9392,82832.215.66$271,716
Oct 20005,8432,40331.235.15$194,842
Sep 20007,8722,96631.875.19$266,264
Aug 20007,9382,86729.644.54$248,301
Jul 20007,9353,11828.534.09$239,137
Jun 20008,4573,23729.304.40$262,024
May 20008,4913,47327.263.68$244,244
Apr 20007,8803,32424.513.12$203,496
Mar 20007,2972,88828.422.86$215,640
Feb 20008,1683,22727.622.73$234,399
Jan 20008,3632,91925.272.48$218,574
Dec 19999,4083,00824.282.42$235,717
Nov 19999,5213,26823.192.43$228,746
Oct 19997,9392,35720.982.80$173,169
Sep 19996,3573,04721.752.62$146,244
Aug 19997,0963,34419.262.88$146,285
Jul 19998,3134,29917.892.37$158,918
Jun 19996,9983,70815.942.36$120,307
May 19997,5783,91815.792.32$128,750
Apr 19994,4722,23015.102.21$72,451
Mar 19995,2673,70812.471.84$72,496
Feb 19995,6474,0409.981.82$63,701
Jan 19996,1334,71910.381.90$72,626
Dec 19985,9573,9409.201.77$61,791
Nov 19986,3523,79210.892.19$77,462
Oct 19986,0533,93812.421.97$82,933
Sep 19986,3394,71812.592.08$89,634
Aug 19986,2425,97411.301.91$81,929
Jul 19985,3244,23011.742.24$71,967
Jun 19986,9925,46711.242.24$90,821
May 19987,7366,12012.622.21$111,131
Apr 19984,9255,16613.042.51$77,165
Mar 19986,85343112.802.31$88,714
Feb 19985,438013.952.30$75,860
Jan 19986,33917814.702.15$93,567
Dec 19976,563016.322.41$107,108
Nov 19976,154018.193.09$111,941
Oct 19976,38825419.253.15$123,769
Sep 19976,27575517.742.95$113,549
Aug 19977,00880217.862.55$127,212
Jul 19978,1681,02017.582.25$145,885
Jun 19976,58331617.242.26$114,204
May 19977,734218.972.31$146,719
Apr 19977,683117.882.08$137,374
Mar 19978,59132618.951.94$163,432
Feb 19978,35327820.492.21$171,766
Jan 199710,38764623.483.54$246,173
Dec 19969,0651,33423.32$211,396
Nov 19968,7537,64021.97$192,303
Oct 19969,3057,52723.31$216,900
Sep 19967,9374,75022.22$176,360
Aug 19969,0841,12920.26$184,042
Jul 19969,56620019.55$187,015
Jun 19968,30939418.73$155,628
May 199610,38120219.43$201,703
Apr 19965,6903,21021.51$122,392
Mar 19965,0455,18219.38$97,772
Feb 19964,8144,65316.98$81,742
Jan 19964,7065,88517.07$80,331
Dec 19955,0045,91817.19$86,019
Nov 19954,7345,78416.00$75,744
Oct 19955,0495,68215.43$77,906
Sep 19955,5144,39816.18$89,217
Aug 19955,4625,25015.92$86,955
Jul 19955,9203,86215.24$90,221
Jun 19955,3233,74116.41$87,350
May 19955,7084,06917.56$100,232
Apr 19956,0853,61917.73$107,887
Mar 19956,9373,25616.44$114,044
Feb 19956,6714,25116.58$110,605
Jan 19957,3613,18115.92$117,187
Dec 19946,9743,80015.03$104,819
Nov 19947,0787,13315.90$112,540
Oct 19947,5827,06115.58$118,128
Sep 19947,4834,85515.29$114,415
Aug 19945,8697,98816.13$94,667
Jul 19946,3925,26517.56$112,244
Jun 19946,5996,20417.09$112,777
May 19946,8386,50515.88$108,587
Apr 19946,4286,39714.14$90,892
Mar 19945,2093,68912.46$64,904
Feb 19944,2433,89112.50$53,038
Jan 19944,7803,65612.66$60,515
Dec 19935,1653,24712.33$63,684
Nov 19935,4914,29814.49$79,565
Oct 19937,0523,97615.85$111,774
Sep 19933,8164,17215.03$57,354
Aug 19933,7114,97515.66$58,114
Jul 19934,1576,06715.46$64,267
Jun 19934,0725,08916.79$68,369
May 19933,7634,58917.68$66,530
Apr 19933,6634,80618.05$66,117
Mar 19933,4323,20518.14$62,256
Feb 19933,4902,08417.90$62,471
Jan 19933,6712,58216.93$62,150

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.

Sep 2024 — as filed, then multipliedworked
Oil                    0 bbl  × $ 69.61 =         $0
Casinghead gas       255 Mcf  × $  2.36 =       $603

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Month total                                     $603

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/4409 is the state's own key, not one this site invented.