SEALY SMITH FOUNDATION -A-

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

Oil lease lease 25430District 08Field 62416666Hydrogen sulphide fieldNGPA filingOilCasinghead gasSaveExport
Value, all time
$3.4 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 19 leases and 28 wells, and the rule below applies to all of them.

Discovered
1895-12-04
as the register files it
Field class
Oil and gas
the register's own label
Between wells
1,700 ft
minimum
From a lease line
660 ft
minimum

A drilling unit in this field needs at least 80 acres. The field rule took effect on 1995-03-01.

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: FIELD CHANGED FROM ONE WELL TO PRORATED 04/29/17

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
NGPA6none

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
OilDisposition90,510 bbl$2,510,273
Casinghead gasProduction377,981 Mcf$893,887
Total$3,404,160

184,210 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 31.7115, -102.9163. A lease has no coordinate of its own — that point is the mean of its wells, and they span 1.9 miles.

31.71085, -102.91820 · 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
44.4%
4 of 9 wells
With a plug date
11.1%
1 of 9 wells
Median depth
9,250 ft
9 wells filed one
Completion to plug
2.8 years
median over 1 well

What the state filed about each well

On the RRC proration schedule
444.4%
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.
555.6%

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 9,250 ft, with the middle half between 9,106 and 9,300 ft; the shallowest is 9,090 ft and the deepest 13,140 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, May 1979 – Apr 1998. This is the LAST completion filed on each wellbore, not the first — a well recompleted in 2019 counts once, in the 2010s.

Completions filed
May 1979 – Apr 1998
9 of 9 wells
Plug dates filed
Dec 1986
1 of 9 wells; 8 filed none

Last completion to plug: a median of 2.8 years across the 1 well that filed both dates, with the middle half between 2.8 years and 2.8 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

9 wells

42-49531117479,287 ftApr 1998Yes
42-495033792811,105 ftMar 1998Yes
42-495052782113,140 ftJun 1997Yes
42-49531160509,200 ftMar 1984Dec 1986Yes
42-49531240529,250 ftDec 1980
42-49531125499,300 ftJun 1980
42-49531124489,096 ftMay 1980
42-49531053469,090 ftJun 1979
42-49531041459,106 ftMay 1979

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 20240069.612.36$0
Aug 20240075.632.06$0
Jul 20240079.932.15$0
Jun 20240078.082.63$0
May 20240078.812.20$0
Apr 20240084.451.66$0
Mar 20240080.301.55$0
Feb 20240076.091.78$0
Jan 20240073.023.30$0
Dec 20230071.262.61$0
Nov 20230077.892.81$0
Oct 20230085.443.09$0
Sep 20230089.042.74$0
Aug 20230080.522.67$0
Jul 20230074.852.64$0
Jun 20230068.962.26$0
May 20230070.622.23$0
Apr 20230078.122.24$0
Mar 20230072.852.39$0
Feb 20230075.112.47$0
Jan 20230076.533.39$0
Dec 20220076.415.73$0
Nov 20220085.005.65$0
Oct 20220087.185.86$0
Sep 20220084.888.16$0
Aug 20220094.529.13$0
Jul 202200101.587.54$0
Jun 202200115.097.98$0
May 202200109.378.43$0
Apr 202200104.226.84$0
Mar 202200108.885.08$0
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 20200030.341.86$0
Feb 20200049.881.98$0
Jan 20200057.252.09$0
Dec 20190059.012.30$0
Nov 20190055.302.75$0
Oct 20190053.472.42$0
Sep 20190055.052.66$0
Aug 20190053.112.30$0
Jul 20190056.272.46$0
Jun 20190052.782.49$0
May 20190058.482.74$0
Apr 20190062.632.75$0
Mar 20190056.803.06$0
Feb 20190050.852.79$0
Jan 20190046.033.23$0
Dec 20180046.594.19$0
Nov 20180052.934.24$0
Oct 20180061.443.40$0
Sep 20180059.543.11$0
Aug 20180059.403.07$0
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 20166042.521.99$255
Apr 20162110336.561.99$973
Mar 2016284533.011.79$1,005
Feb 2016274026.472.06$797
Jan 2016738227.352.36$2,190
Dec 20155312932.362.00$1,973
Nov 20155012138.792.17$2,202
Oct 2015608643.552.43$2,822
Sep 2015816442.992.76$3,659
Aug 20151159940.162.87$4,903
Jul 2015816948.152.95$4,103
Jun 20155911456.152.88$3,642
May 20155917155.212.96$3,763
Apr 20154914449.822.71$2,831
Mar 20155242342.892.93$3,472
Feb 20156031244.662.98$3,608
Jan 20157028643.433.10$3,927
Dec 20148930154.693.59$5,948
Nov 20148628070.464.25$7,250
Oct 201412730378.303.90$11,126
Sep 20148530786.164.05$8,566
Aug 20147434489.394.04$8,003
Jul 201410127896.564.18$10,914
Jun 20149032398.164.74$10,364
May 201410512594.734.73$10,537
Apr 201412449795.944.81$14,287
Mar 20149031495.895.06$10,218
Feb 20141044097.406.19$10,377
Jan 201416313990.404.86$15,411
Dec 201313421291.824.35$13,227
Nov 20139521988.853.74$9,259
Oct 201314829697.423.78$15,537
Sep 2013102144104.113.72$11,155
Aug 2013109111104.253.52$11,754
Jul 2013119103102.523.72$12,583
Jun 201312311894.403.93$12,075
May 201313312694.834.15$13,135
Apr 201312012593.964.28$11,811
Mar 20139012393.623.91$8,907
Feb 20136417391.233.42$6,430
Jan 20136516091.603.42$6,501
Dec 20125813986.773.42$5,508
Nov 20128615086.953.62$8,021
Oct 201210614589.383.40$9,967
Sep 201212514094.672.92$12,242
Aug 201210817592.662.91$10,516
Jul 20128416785.133.02$7,655
Jun 20128915479.822.52$7,492
May 20128215591.612.49$7,898
Apr 201289155101.652.00$9,356
Mar 201295183105.052.22$10,386
Feb 2012110142101.102.57$11,486
Jan 201210410298.092.73$10,480
Dec 2011965996.873.24$9,491
Nov 2011893695.723.31$8,638
Oct 201110211684.983.65$9,091
Sep 20118510983.623.99$7,542
Aug 20119112583.404.15$8,108
Jul 2011649994.144.52$6,472
Jun 20116210092.904.64$6,224
May 20114312298.134.40$4,757
Apr 201162136105.964.33$7,159
Mar 20116117096.364.06$6,568
Feb 2011499785.644.18$4,602
Jan 20116415986.504.59$6,266
Dec 20106116085.734.35$5,925
Nov 20106819180.843.80$6,222
Oct 20106814478.103.51$5,816
Sep 20107519172.633.98$6,207
Aug 201011416873.684.42$9,142
Jul 201012325572.554.74$10,131
Jun 201013331770.364.91$10,914
May 20109426071.124.24$7,786
Apr 20107622981.694.12$7,153
Mar 20105123478.394.39$5,025
Feb 20107317073.585.44$6,297
Jan 20106815474.365.96$5,975
Dec 20095010071.445.48$4,120
Nov 2009748174.593.75$5,824
Oct 2009807972.544.11$6,128
Sep 2009775665.543.06$5,218
Aug 2009931067.423.22$6,302
Jul 20091327361.133.46$8,322
Jun 200913219466.163.90$9,489
May 200912524654.743.93$7,808
Apr 200911529346.773.59$6,430
Mar 200913242042.144.06$7,267
Feb 200911844732.814.63$5,943
Jan 200911362035.865.37$7,382
Dec 20089767937.105.98$7,657
Nov 20085981155.496.86$8,838
Oct 20087388675.246.92$11,625
Sep 200886803101.767.88$15,077
Aug 2008102980114.228.48$19,964
Jul 20081281,190131.0811.39$30,332
Jun 20081071,129131.3313.03$28,766
May 20081081,204123.1711.57$27,238
Apr 20081481,275110.3110.45$29,656
Mar 20081591,253101.909.66$28,311
Feb 20081691,10892.538.77$25,355
Jan 20081531,16890.388.21$23,412
Dec 20071831,12888.337.30$24,401
Nov 20071491,26091.677.29$22,846
Oct 20071491,43582.856.92$22,278
Sep 20071431,09575.846.24$17,682
Aug 200716591569.066.39$17,240
Jul 20071681,22170.906.39$19,711
Jun 20071791,38562.007.55$21,553
May 20071851,58058.747.85$23,264
Apr 20071731,19959.617.81$19,671
Mar 20072001,43056.927.30$21,826
Feb 20071771,47355.108.22$21,855
Jan 20071921,37250.306.73$18,887
Dec 20061891,34756.656.92$20,026
Nov 20061641,57554.207.62$20,886
Oct 20061522,37454.906.01$22,622
Sep 20061771,93860.085.04$20,396
Aug 20061771,48568.717.34$23,061
Jul 20061361,35769.376.34$18,041
Jun 20061521,17366.286.38$17,563
May 20061501,04766.016.42$16,628
Apr 200611359564.397.36$11,656
Mar 200610967856.707.08$10,983
Feb 200610966857.597.75$11,455
Jan 200612469660.598.93$13,731
Dec 200515674154.9413.42$18,511
Nov 200515967454.6910.59$15,832
Oct 200519779258.3413.80$22,419
Sep 200527366961.4512.08$24,857
Aug 200545770361.519.80$34,997
Jul 200543550955.697.84$28,218
Jun 200539146952.337.38$23,923
May 200536749445.226.65$19,881
Apr 200533152449.207.36$20,142
Mar 200530550650.377.15$18,983
Feb 200523949445.226.31$13,926
Jan 200524565943.166.32$14,741
Dec 200426755139.866.75$14,362
Nov 200414062745.286.33$10,308
Oct 200411867749.706.52$10,275
Sep 200413860143.245.28$9,143
Aug 200422277142.375.55$13,686
Jul 200417792138.286.08$12,379
Jun 20041621,04836.106.43$12,590
May 20041671,02137.486.49$12,890
Apr 20041621,00734.475.86$11,484
Mar 20041721,03334.365.53$11,623
Feb 200414183432.455.51$9,170
Jan 200414481832.036.30$9,765
Dec 200314380530.266.30$9,400
Nov 200311742928.804.60$5,341
Oct 200312961328.174.76$6,552
Sep 200313652026.314.75$6,048
Aug 200314454229.765.13$7,066
Jul 200314054229.415.17$6,920
Jun 200313559328.565.98$7,404
May 200313753226.595.97$6,820
Apr 200313538826.675.41$5,698
Mar 200314540331.146.10$6,972
Feb 200316332333.487.93$8,017
Jan 200329437930.315.58$11,027
Dec 200220534726.914.85$7,201
Nov 200215222324.664.14$4,671
Oct 200216129526.464.23$5,508
Sep 200214933227.443.64$5,295
Aug 200222242025.963.16$7,092
Jul 200219350924.583.06$6,302
Jun 200223265323.733.34$7,685
May 20022851,07324.663.58$10,874
Apr 200216045123.653.51$5,368
Mar 200212037522.003.10$3,804
Feb 200213936018.222.38$3,388
Jan 200215240817.172.38$3,579
Dec 200116140016.932.36$3,671
Nov 200115639718.072.41$3,774
Oct 20011901,34719.782.53$7,165
Sep 20011681,32124.262.25$7,050
Aug 20011671,43324.873.05$8,528
Jul 20011681,47223.933.20$8,726
Jun 20011641,52124.563.82$9,844
May 20011771,60225.524.31$11,417
Apr 20011771,56424.685.34$12,713
Mar 20011891,55624.545.38$13,004
Feb 20011641,36727.755.77$12,435
Jan 20011991,39127.478.40$17,149
Dec 20001971,43726.889.12$18,404
Nov 20001931,46232.215.66$14,489
Oct 20001871,57831.235.15$13,960
Sep 20001891,48931.875.19$13,746
Aug 20001951,47729.644.54$12,486
Jul 20001931,53828.534.09$11,796
Jun 20001931,47729.304.40$12,150
May 20002001,63827.263.68$11,479
Apr 20001841,58424.513.12$9,446
Mar 20001491,98328.422.86$9,905
Feb 20001461,88027.622.73$9,158
Jan 20001722,02825.272.48$9,377
Dec 19991821,91524.282.42$9,060
Nov 19991671,87423.192.43$8,434
Oct 19991431,38720.982.80$6,889
Sep 19991931,27321.752.62$7,532
Aug 199918685319.262.88$6,035
Jul 199918173517.892.37$4,982
Jun 199916832615.942.36$3,448
May 199914730315.792.32$3,024
Apr 199911825015.102.21$2,334
Mar 199911831512.471.84$2,051
Feb 19991123159.981.82$1,690
Jan 19998630310.381.90$1,468
Dec 19981263329.201.77$1,748
Nov 199812529210.892.19$1,999
Oct 199812131112.421.97$2,115
Sep 1998902,01712.592.08$5,334
Aug 1998942,70511.301.91$6,222
Jul 1998922,16211.742.24$5,917
Jun 1998972,28211.242.24$6,196
May 19981072,55512.622.21$6,988
Apr 19981172,93113.042.51$8,869
Mar 1998631,18112.802.31$3,534
Feb 19981393,28313.952.30$9,487
Jan 19981623,80714.702.15$10,585
Dec 19971673,89716.322.41$12,122
Nov 19971574,04318.193.09$15,342
Oct 19971615,23319.253.15$19,582
Sep 1997611,16417.742.95$4,522
Aug 19970017.862.55$0
Jul 19972017.582.25$35
Jun 19971695,28117.242.26$14,834
May 19971986,01418.972.31$17,639
Apr 19971986,46717.882.08$17,010
Mar 19972682,10118.951.94$9,153
Feb 19972601,39620.492.21$8,407
Jan 19973242,28023.483.54$15,678
Dec 19962832,10723.32$6,600
Nov 19962731,41221.97$5,998
Oct 19962902,53923.31$6,760
Sep 19962511,72622.22$5,577
Aug 19962871,45620.26$5,815
Jul 19962521,25719.55$4,927
Jun 19962191,40818.73$4,102
May 19962741,58419.43$5,324
Apr 199620990421.51$4,496
Mar 19961,6824,64519.38$32,597
Feb 19961,6054,45216.98$27,253
Jan 19961,5694,22117.07$26,783
Dec 19951,6684,83217.19$28,673
Nov 19951,5784,95416.00$25,248
Oct 19951,6815,48915.43$25,938
Sep 19951,6786,07716.18$27,150
Aug 19951,6625,76615.92$26,459
Jul 19951,8026,07315.24$27,462
Jun 19951,6204,91516.41$26,584
May 19951,7374,87017.56$30,502
Apr 19951,8526,13617.73$32,836
Mar 19952,1116,33216.44$34,705
Feb 19952,0305,86416.58$33,657
Jan 19952,2406,86715.92$35,661
Dec 19942,1235,93015.03$31,909
Nov 19942,1546,51415.90$34,249
Oct 19942,2706,97215.58$35,367
Sep 19948532,24215.29$13,042
Aug 19942,0395,69916.13$32,889
Jul 19942,2205,48317.56$38,983
Jun 19942,2924,58517.09$39,170
May 19942,3754,73215.88$37,715
Apr 19942,2334,98814.14$31,575
Mar 19941,8093,26812.46$22,540
Feb 19941,3963,27412.50$17,450
Jan 19941,0423,39212.66$13,192
Dec 19936662,48812.33$8,212
Nov 19937092,62714.49$10,273
Oct 19939103,06415.85$14,424
Sep 19934922,88115.03$7,395
Aug 19934792,49915.66$7,501
Jul 19935362,22615.46$8,287
Jun 19935022,23516.79$8,429
May 19934862,15117.68$8,592
Apr 19934772,20118.05$8,610
Mar 19934382,42018.14$7,945
Feb 19934793,15117.90$8,574
Jan 19938103,30216.93$13,713

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 2016 — as filed, then multipliedworked
Oil                    6 bbl  × $ 42.52 =       $255
Casinghead gas         0 Mcf  × $  1.99 =         $0

────────────────────────────────────────────────────
Month total                                     $255

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/25430 is the state's own key, not one this site invented.