SHELL-PERKINS

Operated by HIGHMARK ENERGY OPERATING, LLC (P-5 385847) in the DEEP ROCK (PENN.) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 28453District 08Field 23907710Hydrogen sulphide fieldNGPA filingOilCasinghead gasSaveExport
Value, all time
$8.8 M
Jan 1993 – May 2026
Value, last 12 filed months
$73 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 54 leases and 106 wells, and the rule below applies to all of them.

Discovered
1961-03-04
as the register files it
Field class
Oil
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 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: OPTIONAL 40 ACRE, DIAG. 2100

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
NGPA9none

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
OilDisposition204,993 bbl$7,816,801
Casinghead gasProduction384,918 Mcf$1,011,272
Total$8,828,073

137,674 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 32.2741, -102.6291. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.9 miles.

32.27425, -102.62898 · 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
60.0%
6 of 10 wells
With a plug date
60.0%
6 of 10 wells
Median depth
9,500 ft
10 wells filed one
Completion to plug
17.3 years
median over 6 wells

What the state filed about each well

On the RRC proration schedule
660.0%
A plug date is filed
660.0%
BothOn the schedule and plugged. Neither fact cancels the other.
660.0%
NeitherNo plug date, and not on the schedule.
440.0%

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, 10 of 10 wells. Median 9,500 ft, with the middle half between 9,400 and 9,500 ft; the shallowest is 9,350 ft and the deepest 9,590 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 10 wells, Oct 1983 – Feb 2006. This is the LAST completion filed on each wellbore, not the first — a well recompleted in 2019 counts once, in the 2010s.

Completions filed
Oct 1983 – Feb 2006
10 of 10 wells
Plug dates filed
Jan 1999 – Dec 2001
6 of 10 wells; 4 filed none

Last completion to plug: a median of 17.3 years across the 6 wells that filed both dates, with the middle half between 16.9 years and 17.6 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

10 wells

42-00339715109,400 ftFeb 2006
42-0033553099,400 ftApr 1986
42-0033482089,400 ftApr 1985
42-0033464979,590 ftFeb 1985Dec 2001Yes
42-0033445269,350 ftDec 1984Dec 2001Yes
42-0033445159,575 ftOct 1984
42-0033407849,500 ftJun 1984Dec 2001Yes
42-0033404639,500 ftMay 1984Dec 2001Yes
42-0033392929,500 ftMar 1984Dec 2001Yes
42-0033370419,500 ftOct 1983Jan 1999Yes

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 20261770106.413.05$18,835
Apr 2026012898.932.87$367
Mar 202614324889.753.15$13,615
Feb 2026022463.503.75$840
Jan 202618423259.138.00$12,735
Dec 2025024856.664.41$1,095
Nov 2025024058.593.93$942
Oct 2025024859.383.30$820
Sep 202515324062.743.08$10,338
Aug 2025024863.933.01$748
Jul 2025024866.743.32$822
Jun 202516524066.483.13$11,720
May 2025024860.553.23$802
Apr 2025024062.363.54$850
Mar 2025024867.704.27$1,059
Feb 2025022470.884.34$972
Jan 2025024874.324.28$1,061
Dec 202411724868.993.12$8,846
Nov 2024024069.052.20$528
Oct 2024024071.372.28$548
Sep 20240069.612.36$0
Aug 2024024875.632.06$512
Jul 2024024879.932.15$532
Jun 2024022478.082.63$590
May 202406478.812.20$141
Apr 202417724084.451.66$15,346
Mar 2024024880.301.55$383
Feb 2024023276.091.78$414
Jan 2024024873.023.30$818
Dec 202315624871.262.61$11,764
Nov 2023024077.892.81$674
Oct 2023024885.443.09$766
Sep 2023024089.042.74$656
Aug 2023024880.522.67$663
Jul 202314824874.852.64$11,733
Jun 2023024068.962.26$542
May 2023024870.622.23$552
Apr 202310524078.122.24$8,740
Mar 20230072.852.39$0
Feb 2023168075.112.47$12,618
Jan 202317224876.533.39$14,003
Dec 2022024876.415.73$1,421
Nov 2022024085.005.65$1,355
Oct 2022024887.185.86$1,454
Sep 2022024084.888.16$1,959
Aug 2022024894.529.13$2,264
Jul 20220248101.587.54$1,870
Jun 20220240115.097.98$1,915
May 20220246109.378.43$2,075
Apr 20220178104.226.84$1,217
Mar 2022169338108.885.08$20,117
Feb 2022026991.054.86$1,307
Jan 202217838081.844.54$16,292
Dec 202135040571.323.90$26,541
Nov 202135034677.435.24$28,912
Oct 202116738579.795.71$15,525
Sep 202118131169.865.35$14,309
Aug 202134037266.024.22$24,017
Jul 202117646170.783.98$14,293
Jun 202134434369.493.38$25,064
May 202117268663.483.02$12,989
Apr 202134943160.362.76$22,255
Mar 202117738761.302.72$11,902
Feb 202117223757.805.55$11,256
Jan 202133250350.412.81$18,150
Dec 202034046444.642.68$16,419
Nov 202034651138.772.71$14,797
Oct 202018753636.972.48$8,242
Sep 202032750837.091.99$13,140
Aug 202017740139.982.39$8,033
Jul 202031136938.371.83$12,607
Jun 202018039934.901.69$6,956
May 202033841916.921.81$6,479
Apr 202025055714.751.80$4,693
Mar 202044856130.341.86$14,634
Feb 202017241449.881.98$9,399
Jan 202031352557.252.09$19,019
Dec 201934151559.012.30$21,309
Nov 201936454055.302.75$21,615
Oct 201919658753.472.42$11,900
Sep 201935340855.052.66$20,517
Aug 201916410353.112.30$8,947
Jul 201934936556.272.46$20,536
Jun 201916931552.782.49$9,705
May 201934947558.482.74$21,711
Apr 201933731762.632.75$21,978
Mar 201917528156.803.06$10,800
Feb 201934648950.852.79$18,960
Jan 201917344546.033.23$9,400
Dec 201866147546.594.19$32,784
Nov 201818540152.934.24$11,491
Oct 201830636561.443.40$20,041
Sep 201816153159.543.11$11,236
Aug 201818055859.403.07$12,403
Jul 201835439965.142.93$24,229
Jun 201818236260.183.08$12,067
May 201834329365.382.90$23,275
Apr 201835815563.842.90$23,304
Mar 201835820861.222.79$22,496
Feb 201816930161.782.77$11,273
Jan 201835220862.874.01$22,964
Dec 201733214057.272.92$19,423
Nov 201733222355.423.12$19,095
Oct 201716939449.292.98$9,506
Sep 201726439247.523.09$13,755
Aug 201733243645.373.00$16,373
Jul 201733042643.873.09$15,792
Jun 201716538442.493.09$8,196
May 201733447045.373.26$16,687
Apr 201733442947.933.21$17,386
Mar 201750242546.772.98$24,747
Feb 201733442250.452.95$18,096
Jan 201732249749.413.42$17,609
Dec 201634345848.763.72$18,430
Nov 201635148642.492.64$16,199
Oct 201649632446.193.09$23,911
Sep 201638349141.553.10$17,436
Aug 2016043141.442.92$1,260
Jul 201637945541.622.92$17,105
Jun 201633947145.352.69$16,639
May 201651545542.521.99$22,804
Apr 201618141436.561.99$7,442
Mar 201653945333.011.79$18,605
Feb 201618033226.472.06$5,450
Jan 201613529927.352.36$4,399
Dec 201534045432.362.00$11,911
Nov 201536648938.792.17$15,257
Oct 201518237243.552.43$8,829
Sep 201552139242.992.76$23,479
Aug 201534539740.162.87$14,996
Jul 201517849248.152.95$10,020
Jun 201535549056.152.88$21,346
May 201517261255.212.96$11,305
Apr 201553652049.822.71$28,111
Mar 201514540742.892.93$7,413
Feb 201535051044.662.98$17,149
Jan 201553483343.433.10$25,774
Dec 201418260754.693.59$12,134
Nov 201463558670.464.25$47,234
Oct 201434462778.303.90$29,381
Sep 201416867086.164.05$17,185
Aug 201447756789.394.04$44,927
Jul 201453763796.564.18$54,515
Jun 201418659398.164.74$21,067
May 201450456594.734.73$50,414
Apr 201432950795.944.81$34,002
Mar 201452767395.895.06$53,937
Feb 201433553897.406.19$35,960
Jan 201450566290.404.86$48,870
Dec 201332570691.824.35$32,916
Nov 201349363188.853.74$46,162
Oct 201350359497.423.78$51,247
Sep 2013335357104.113.72$36,204
Aug 2013512555104.253.52$55,331
Jul 2013335291102.523.72$35,426
Jun 201333632794.403.93$33,005
May 2013502094.834.15$47,605
Apr 20135077993.964.28$47,976
Mar 201333339693.623.91$32,725
Feb 201316944691.233.42$16,943
Jan 201350426491.603.42$47,069
Dec 201234439286.773.42$31,190
Nov 201234027486.953.62$30,556
Oct 201233220289.383.40$30,361
Sep 20124954594.672.92$46,993
Aug 20123354292.662.91$31,163
Jul 201232813785.133.02$28,336
Jun 201233218579.822.52$26,966
May 201233650791.612.49$32,043
Apr 2012512377101.652.00$52,798
Mar 2012338713105.052.22$37,091
Feb 2012342652101.102.57$36,252
Jan 201251862698.092.73$52,522
Dec 201136264696.873.24$37,160
Nov 201134466795.723.31$35,136
Oct 201150462784.983.65$45,118
Sep 201116461083.623.99$16,145
Aug 201153468683.404.15$47,382
Jul 201117053694.144.52$18,425
Jun 201134756492.904.64$34,853
May 201131166098.134.40$33,426
Apr 2011519745105.964.33$58,222
Mar 201134278996.364.06$36,156
Feb 201134157385.644.18$31,598
Jan 201135578086.504.59$34,287
Dec 201052980185.734.35$48,834
Nov 201035078780.843.80$31,281
Oct 201033672578.103.51$28,786
Sep 201035378472.633.98$28,758
Aug 201051781073.684.42$41,672
Jul 201034368172.554.74$28,110
Jun 201034875070.364.91$28,168
May 201032382071.124.24$26,445
Apr 201049476681.694.12$43,513
Mar 201053178878.394.39$45,083
Feb 201035270573.585.44$29,737
Jan 201036080174.365.96$31,547
Dec 200934679271.445.48$29,061
Nov 200935684974.593.75$29,739
Oct 200935533072.544.11$27,108
Sep 200952593365.543.06$37,268
Aug 20096921,00467.423.22$49,886
Jul 20093451,03661.133.46$24,679
Jun 20095311,06666.163.90$39,283
May 20095231,08154.743.93$32,873
Apr 200949575146.773.59$25,845
Mar 200950889142.144.06$25,024
Feb 200934083732.814.63$15,033
Jan 200950886335.865.37$22,852
Dec 200852191537.105.98$24,798
Nov 200851391055.496.86$34,709
Oct 200834493875.246.92$32,375
Sep 2008510853101.767.88$58,617
Aug 2008544864114.228.48$69,465
Jul 2008359883131.0811.39$57,115
Jun 2008524727131.3313.03$78,292
May 2008516902123.1711.57$73,996
Apr 2008523602110.3110.45$63,986
Mar 2008707197101.909.66$73,947
Feb 200850734492.538.77$49,930
Jan 200834225890.388.21$33,027
Dec 200753235888.337.30$49,606
Nov 200756654791.677.29$55,874
Oct 200718348282.856.92$18,498
Sep 200736728275.846.24$29,594
Aug 200755930569.066.39$40,553
Jul 200736747470.906.39$29,048
Jun 200736254162.007.55$26,528
May 200718568958.747.85$16,273
Apr 200736578959.617.81$27,916
Mar 200754585956.927.30$37,294
Feb 200774963855.108.22$46,512
Jan 200718854150.306.73$13,096
Dec 200637175556.656.92$26,241
Nov 200655675254.207.62$35,864
Oct 200654862154.906.01$33,820
Sep 200636072160.085.04$25,261
Aug 200670080068.717.34$53,969
Jul 200655870469.376.34$43,174
Jun 200655364066.286.38$40,739
May 200654986266.016.42$41,778
Apr 200672395464.397.36$53,576
Mar 200688795356.707.08$57,043
Feb 200636972457.597.75$26,863
Jan 200636175160.598.93$28,582
Dec 200557076254.9413.42$41,538
Nov 200536776454.6910.59$28,161
Oct 200555575158.3413.80$42,739
Sep 200518459761.4512.08$18,518
Aug 200554867261.519.80$40,291
Jul 200537767655.697.84$26,297
Jun 200536556652.337.38$23,278
May 200536862445.226.65$20,791
Apr 200537548649.207.36$22,027
Mar 200555478450.377.15$33,514
Feb 200535267445.226.31$20,172
Jan 200552375843.166.32$27,365
Dec 200417249839.866.75$10,218
Nov 200451461245.286.33$27,148
Oct 200434776949.706.52$22,256
Sep 200434957743.245.28$18,140
Aug 200435182442.375.55$19,446
Jul 200452984838.286.08$25,410
Jun 200450281636.106.43$23,372
May 200435686037.486.49$18,928
Apr 200435696534.475.86$17,925
Mar 200453564634.365.53$21,955
Feb 200435663332.455.51$15,040
Jan 200453179132.036.30$21,991
Dec 200336081530.266.30$16,029
Nov 200335883228.804.60$14,134
Oct 200353286328.174.76$19,094
Sep 200335677826.314.75$13,061
Aug 200335288229.765.13$15,000
Jul 200335281529.415.17$14,567
Jun 200335477228.565.98$14,729
May 200352884226.595.97$19,069
Apr 200335673526.675.41$13,469
Mar 200317796331.146.10$11,382
Feb 200352682933.487.93$24,181
Jan 200336291530.315.58$16,080
Dec 200253694926.914.85$19,030
Nov 200236096824.664.14$12,882
Oct 200235895426.464.23$13,507
Sep 200253099027.443.64$18,142
Aug 20023481,04225.963.16$12,331
Jul 20023541,03124.583.06$11,858
Jun 20025311,00723.733.34$15,962
May 200236399824.663.58$12,528
Apr 200236826923.653.51$9,648
Mar 200237071622.003.10$10,362
Feb 200254266018.222.38$11,443
Jan 200253674117.172.38$10,964
Dec 200154072216.932.36$10,849
Nov 200117777818.072.41$5,070
Oct 20015431,00719.782.53$13,287
Sep 20013561,02324.262.25$10,940
Aug 20014941,09324.873.05$15,623
Jul 200171589923.933.20$19,984
Jun 2001098124.563.82$3,752
May 20015131,06725.524.31$17,688
Apr 20015421,03624.685.34$18,904
Mar 20014871,06124.545.38$17,655
Feb 20013671,04427.755.77$16,205
Jan 20013591,14127.478.40$19,445
Dec 20007201,14826.889.12$29,826
Nov 20003601,16432.215.66$18,182
Oct 20005441,30131.235.15$23,683
Sep 20005241,35131.875.19$23,707
Aug 20005851,20429.644.54$22,806
Jul 20005751,35128.534.09$21,930
Jun 20005141,36429.304.40$21,058
May 20006981,41427.263.68$24,231
Apr 20005861,34624.513.12$18,557
Mar 20008271,40028.422.86$27,507
Feb 20003131,29627.622.73$12,179
Jan 20006161,34525.272.48$18,903
Dec 19997531,28624.282.42$21,400
Nov 19996221,34123.192.43$17,688
Oct 19996341,43520.982.80$17,325
Sep 19995331,35621.752.62$15,144
Aug 19996521,46419.262.88$16,767
Jul 19996371,48417.892.37$14,917
Jun 19997001,43615.942.36$14,550
May 19995891,62915.792.32$13,081
Apr 19997161,80915.102.21$14,806
Mar 19996711,94612.471.84$11,945
Feb 19995761,7819.981.82$8,986
Jan 19997352,38510.381.90$12,161
Dec 19988011,9849.201.77$10,887
Nov 19987831,48110.892.19$11,764
Oct 19989732,00712.421.97$16,037
Sep 19981,4181,84412.592.08$21,693
Aug 19986121,56211.301.91$9,895
Jul 19986331,92211.742.24$11,731
Jun 19981,2921,87311.242.24$18,712
May 19988302,19712.622.21$15,322
Apr 19986041,68213.042.51$12,090
Mar 19989421,79912.802.31$16,212
Feb 19988451,93613.952.30$16,239
Jan 19981,0372,09014.702.15$19,747
Dec 19977681,77116.322.41$16,804
Nov 19979701,83318.193.09$23,305
Oct 19978762,23819.253.15$23,912
Sep 19971,1082,09017.742.95$25,832
Aug 19971,0912,63817.862.55$26,225
Jul 19971,2272,37217.582.25$26,900
Jun 19978252,26617.242.26$19,338
May 19971,0472,26618.972.31$25,093
Apr 19971,2822,10917.882.08$27,315
Mar 19971,4301,99218.951.94$30,961
Feb 19978211,38420.492.21$19,875
Jan 19971,2412,89723.483.54$39,393
Dec 19961,0682,79023.32$24,906
Nov 19961,0281,82421.97$22,585
Oct 19961,9622,64523.31$45,734
Sep 19961,0392,42022.22$23,087
Aug 19961,1332,61720.26$22,955
Jul 19961,0292,67319.55$20,117
Jun 19961,2862,63618.73$24,087
May 19961,1752,76719.43$22,830
Apr 19961,2182,53721.51$26,199
Mar 19961,5402,59619.38$29,845
Feb 19969152,35316.98$15,537
Jan 19961,4592,36417.07$24,905
Dec 19951,0852,29217.19$18,651
Nov 19951,3062,67616.00$20,896
Oct 19951,6662,87915.43$25,706
Sep 19959902,85216.18$16,018
Aug 19951,3933,02615.92$22,177
Jul 19951,3873,09715.24$21,138
Jun 19951,2972,97616.41$21,284
May 19951,2712,72517.56$22,319
Apr 19951,4312,84117.73$25,372
Mar 19951,6802,96416.44$27,619
Feb 19951,2802,55516.58$21,222
Jan 19951,2101,78015.92$19,263
Dec 19941,4822,93515.03$22,274
Nov 19941,2682,80815.90$20,161
Oct 19941,4372,89115.58$22,388
Sep 19941,4452,71615.29$22,094
Aug 19941,48692716.13$23,969
Jul 19941,39355417.56$24,461
Jun 19941,29765717.09$22,166
May 19941,7793,55215.88$28,251
Apr 19941,2712,11014.14$17,972
Mar 19941,3923,68612.46$17,344
Feb 19941,6672,83412.50$20,838
Jan 19941,5423,28012.66$19,522
Dec 19931,7643,98412.33$21,750
Nov 19931,6903,52014.49$24,488
Oct 19931,6303,58015.85$25,836
Sep 19931,6823,60715.03$25,280
Aug 19931,5763,81215.66$24,680
Jul 19931,6384,05115.46$25,323
Jun 19931,5483,32816.79$25,991
May 19931,6614,37917.68$29,366
Apr 19931,8234,55018.05$32,905
Mar 19931,8294,31718.14$33,178
Feb 19931,5513,23717.90$27,763
Jan 19931,7683,47416.93$29,932

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                  177 bbl  × $106.41 =    $18,835
Casinghead gas         0 Mcf  × $  3.05 =         $0

────────────────────────────────────────────────────
Month total                                  $18,835

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/28453 is the state's own key, not one this site invented.