DEEP ROCK ET AL -A-

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

Oil lease lease 21679District 08Field 82570500Hydrogen sulphide fieldNGPA filingOilCasinghead gasSaveExport
Value, all time
$9.6 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 194 leases and 1,113 wells, and the rule below applies to all of them.

Discovered
1953-04-01
as the register files it
Field class
Oil
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 2014-01-07.

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: DIAGONAL LIMITATION, TOP ALLOWABLE ADJUSTED.

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
NGPA3none

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
OilDisposition236,231 bbl$9,485,809
Casinghead gasProduction50,621 Mcf$160,003
Total$9,645,813

9,757 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 (4)

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 32.3319, -102.6516. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.3 miles.

32.33183, -102.65184 · 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%
2 of 4 wells
With a plug date
50.0%
2 of 4 wells
Median depth
4,550 ft
3 wells filed one
Completion to plug
43.0 years
median over 2 wells

What the state filed about each well

On the RRC proration schedule
250.0%
A plug date is filed
250.0%
BothOn the schedule and plugged. Neither fact cancels the other.
250.0%
NeitherNo plug date, and not on the schedule.
250.0%

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

Between 4,550 and 4,650 ft, median 4,550 ft, over the 3 wells that filed a depth.

Completions filed
May 1981 – Mar 2025
3 of 4 wells; 1 filed none
Plug dates filed
Jul 2022 – Jul 2026
2 of 4 wells; 2 filed none

Last completion to plug: a median of 43.0 years across the 2 wells that filed both dates, with the middle half between 41.8 years and 44.1 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

4 wells

42-003032293
42-003328937 S4,550 ftMar 2025
42-003328928S4,550 ftOct 1981Jul 2022Yes
42-003326691S4,650 ftMay 1981Jul 2026Yes

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 20233075.112.47$225
Jan 2023223676.533.39$1,806
Dec 2022293076.415.73$2,388
Nov 2022334985.005.65$3,082
Oct 2022315687.185.86$3,031
Sep 2022346584.888.16$3,417
Aug 2022315994.529.13$3,469
Jul 20222839101.587.54$3,138
Jun 20222945115.097.98$3,697
May 20222946109.378.43$3,560
Apr 20222641104.226.84$2,990
Mar 20223445108.885.08$3,930
Feb 2022376791.054.86$3,694
Jan 2022659381.844.54$5,742
Dec 2021578671.323.90$4,401
Nov 2021577177.435.24$4,785
Oct 2021617079.795.71$5,267
Sep 2021586869.865.35$4,416
Aug 2021606866.024.22$4,248
Jul 20216414670.783.98$5,111
Jun 20214910269.493.38$3,750
May 20215710463.483.02$3,932
Apr 20215510160.362.76$3,598
Mar 2021577961.302.72$3,709
Feb 2021314257.805.55$2,025
Jan 2021325550.412.81$1,768
Dec 2020305644.642.68$1,489
Nov 2020282538.772.71$1,153
Oct 2020334636.972.48$1,334
Sep 20203335937.091.99$1,939
Aug 2020326939.982.39$1,444
Jul 20203533538.371.83$1,954
Jun 2020921534.901.69$3,236
May 202016415616.921.81$3,058
Apr 202016814514.751.80$2,740
Mar 202017017330.341.86$5,479
Feb 202015618249.881.98$8,142
Jan 202022915357.252.09$13,431
Dec 20192409559.012.30$14,381
Nov 20191967355.302.75$11,040
Oct 201930216753.472.42$16,552
Sep 20192656555.052.66$14,761
Aug 20192315853.112.30$12,402
Jul 201928514356.272.46$16,389
Jun 201936912252.782.49$19,780
May 201932815058.482.74$19,592
Apr 201922316062.632.75$14,407
Mar 201919623456.803.06$11,849
Feb 201916415950.852.79$8,783
Jan 201920124446.033.23$10,040
Dec 201822820546.594.19$11,481
Nov 201821916652.934.24$12,295
Oct 201823329961.443.40$15,332
Sep 201825328259.543.11$15,940
Aug 201819330659.403.07$12,403
Jul 201825016165.142.93$16,757
Jun 201824112960.183.08$14,900
May 201820312165.382.90$13,623
Apr 201821312763.842.90$13,966
Mar 201822617561.222.79$14,323
Feb 201818010561.782.77$11,411
Jan 20182326762.874.01$14,854
Dec 201733315657.272.92$19,527
Nov 20173559855.423.12$19,980
Oct 201729323749.292.98$15,149
Sep 20172563,12447.523.09$21,810
Aug 201728520245.373.00$13,537
Jul 201732913443.873.09$14,847
Jun 201731926942.493.09$14,385
May 201737621745.373.26$17,767
Apr 20173822,08347.933.21$24,999
Mar 201745825946.772.98$22,193
Feb 201737734850.452.95$20,047
Jan 201752321049.413.42$26,559
Dec 20163421,27148.763.72$21,408
Nov 201659416542.492.64$25,675
Oct 20165688746.193.09$26,505
Sep 201650020741.553.10$21,417
Aug 201646917641.442.92$19,950
Jul 201639518241.622.92$16,972
Jun 201646512845.352.69$21,432
May 20164119242.521.99$17,659
Apr 20163818636.561.99$14,101
Mar 20164309133.011.79$14,358
Feb 2016447026.472.06$11,832
Jan 20165328927.352.36$14,761
Dec 2015428032.362.00$13,850
Nov 2015492038.792.17$19,085
Oct 201543013143.552.43$19,044
Sep 20153972942.992.76$17,147
Aug 201531911340.162.87$13,136
Jul 20153006548.152.95$14,636
Jun 20154547056.152.88$25,694
May 20155839655.212.96$32,471
Apr 20154998449.822.71$25,088
Mar 20155696542.892.93$24,595
Feb 20154876744.662.98$21,949
Jan 20155528443.433.10$24,234
Dec 20146717054.693.59$36,948
Nov 20145156570.464.25$36,563
Oct 20146002478.303.90$47,074
Sep 2014449486.164.05$38,702
Aug 20144842789.394.04$43,374
Jul 20145479696.564.18$53,220
Jun 201444413098.164.74$44,199
May 20145387494.734.73$51,315
Apr 20144806595.944.81$46,364
Mar 20145086595.895.06$49,041
Feb 20143296597.406.19$32,447
Jan 201436811190.404.86$33,807
Dec 20134248791.824.35$39,311
Nov 201342511788.853.74$38,199
Oct 201346717597.423.78$46,157
Sep 2013411121104.113.72$43,239
Aug 201343378104.253.52$45,415
Jul 201336584102.523.72$37,732
Jun 20134126094.403.93$39,129
May 2013398094.834.15$37,742
Apr 20134073693.964.28$38,396
Mar 201347515193.623.91$45,060
Feb 201339311591.233.42$36,247
Jan 20134018491.603.42$37,019
Dec 20124391386.773.42$38,136
Nov 20124151286.953.62$36,128
Oct 20123856489.383.40$34,629
Sep 20121831294.672.92$17,360
Aug 20122693092.662.91$25,013
Jul 20123536885.133.02$30,256
Jun 20123146679.822.52$25,230
May 20122657891.612.49$24,471
Apr 201232075101.652.00$32,678
Mar 201229769105.052.22$31,353
Feb 201227343101.102.57$27,711
Jan 20123255498.092.73$32,027
Dec 20112664296.873.24$25,903
Nov 20112784295.723.31$26,749
Oct 20113255984.983.65$27,834
Sep 20112846683.623.99$24,011
Aug 20114648683.404.15$39,054
Jul 20114699294.144.52$44,567
Jun 20114748392.904.64$44,420
May 20116138698.134.40$60,533
Apr 2011535116105.964.33$57,191
Mar 201144612196.364.06$43,468
Feb 20113809285.644.18$32,928
Jan 20115048286.504.59$43,972
Dec 201047110785.734.35$40,844
Nov 201046712480.843.80$38,223
Oct 201052514078.103.51$41,494
Sep 201047213672.633.98$34,823
Aug 201051014073.684.42$38,196
Jul 201054712172.554.74$40,258
Jun 201052914470.364.91$37,928
May 201065512871.124.24$47,126
Apr 201058212881.694.12$48,071
Mar 201059013778.394.39$46,851
Feb 201051813273.585.44$38,833
Jan 201058213674.365.96$44,089
Dec 200954915571.445.48$40,071
Nov 200957615974.593.75$43,560
Oct 20091,0157572.544.11$73,936
Sep 20091,18716965.543.06$78,314
Aug 20091,37113667.423.22$92,871
Jul 20091,12618161.133.46$69,459
Jun 20091,00115066.163.90$66,810
May 200986710654.743.93$47,876
Apr 200983712346.773.59$39,588
Mar 20091,12513242.144.06$47,943
Feb 20091,06711332.814.63$35,532
Jan 20091,1239635.865.37$40,786
Dec 20081,02310037.105.98$38,551
Nov 20081,0067455.496.86$56,331
Oct 20081,1646875.246.92$88,050
Sep 20081,24883101.767.88$127,650
Aug 20081,170142114.228.48$134,842
Jul 20081,139108131.0811.39$150,530
Jun 200881654131.3313.03$107,869
May 2008918106123.1711.57$114,297
Apr 2008806102110.3110.45$89,976
Mar 200887348101.909.66$89,423
Feb 20086354392.538.77$59,134
Jan 2008579890.388.21$52,396
Dec 20075981688.337.30$52,938
Nov 200792613891.677.29$85,893
Oct 20071,37812682.856.92$115,039
Sep 20071,45511175.846.24$111,040
Aug 20071,1956969.066.39$82,967
Jul 20075453270.906.39$38,845
Jun 20074811262.007.55$29,913
May 20076232058.747.85$36,752
Apr 20075571559.617.81$33,320
Mar 20075432456.927.30$31,083
Feb 20075603955.108.22$31,176
Jan 20076634150.306.73$33,625
Dec 20067019156.656.92$40,341
Nov 200658014954.207.62$32,571
Oct 200658812754.906.01$33,045
Sep 200672415960.085.04$44,299
Aug 200657015568.717.34$40,302
Jul 200658215769.376.34$41,369
Jun 200662315866.286.38$42,301
May 200660716266.016.42$41,109
Apr 200660615964.397.36$40,191
Mar 200650313156.707.08$29,448
Feb 200654012257.597.75$32,044
Jan 20065939160.598.93$36,743
Dec 20055015954.9413.42$28,316
Nov 20055297354.6910.59$29,704
Oct 20054523558.3413.80$26,853
Sep 20055086461.4512.08$31,990
Aug 200555511261.519.80$35,235
Jul 20054167855.697.84$23,779
Jun 20054428152.337.38$23,728
May 20055353045.226.65$24,392
Apr 20054116749.207.36$20,714
Mar 20054457850.377.15$22,973
Feb 20054607345.226.31$21,262
Jan 20056639343.166.32$29,203
Dec 20045436639.866.75$22,090
Nov 2004666045.286.33$30,156
Oct 20047095549.706.52$35,596
Sep 200461510543.245.28$27,147
Aug 200456212642.375.55$24,511
Jul 200460815138.286.08$24,193
Jun 200454612936.106.43$20,540
May 200455912437.486.49$21,757
Apr 200460411534.475.86$21,494
Mar 20045948534.365.53$20,880
Feb 20045625832.455.51$18,556
Jan 20046579132.036.30$21,617
Dec 20036319130.266.30$19,668
Nov 200358310428.804.60$17,268
Oct 200364911128.174.76$18,811
Sep 200360910626.314.75$16,526
Aug 200364314729.765.13$19,890
Jul 200353011429.415.17$16,177
Jun 200355711028.565.98$16,566
May 200363213926.595.97$17,635
Apr 200360712626.675.41$16,870
Mar 200363213131.146.10$20,479
Feb 200357910933.487.93$20,249
Jan 200360611330.315.58$18,999
Dec 200268011326.914.85$18,847
Nov 200268710724.664.14$17,384
Oct 200256512626.464.23$15,483
Sep 200266514427.443.64$18,771
Aug 200265622125.963.16$17,729
Jul 200268913424.583.06$17,346
Jun 200255420923.733.34$13,844
May 200258216324.663.58$14,936
Apr 200250915123.653.51$12,568
Mar 200269514722.003.10$15,746
Feb 200263610018.222.38$11,825
Jan 200262612217.172.38$11,038
Dec 20015929916.932.36$10,257
Nov 200156010318.072.41$10,367
Oct 200157012219.782.53$11,583
Sep 200157312924.262.25$14,191
Aug 200158314924.873.05$14,954
Jul 200152914723.933.20$13,129
Jun 200146719424.563.82$12,211
May 200145715725.524.31$12,339
Apr 200134811924.685.34$9,224
Mar 20011,10513024.545.38$27,816
Feb 20011,09111727.755.77$30,950
Jan 20011,26110627.478.40$35,530
Dec 20001,03010126.889.12$28,608
Nov 20001,18912132.215.66$38,982
Oct 20001,39716431.235.15$44,472
Sep 20001,01616131.875.19$33,215
Aug 200099916729.644.54$30,369
Jul 200092612728.534.09$26,938
Jun 20001,17714229.304.40$35,111
May 20001,1724927.263.68$32,129
Apr 20001,225024.513.12$30,025
Mar 20001,271028.422.86$36,122
Feb 20001,154027.622.73$31,873
Jan 20001,1677325.272.48$29,671
Dec 19991,43919624.282.42$35,414
Nov 19991,23119323.192.43$29,017
Oct 19991,10418020.982.80$23,667
Sep 19991,05020521.752.62$23,374
Aug 19991,20423619.262.88$23,868
Jul 19991,26324417.892.37$23,174
Jun 19991,23922015.942.36$20,269
May 19991,62626015.792.32$26,278
Apr 19991,17122515.102.21$18,179
Mar 19991,43624812.471.84$18,363
Feb 19991,1731719.981.82$12,017
Jan 19991,06712110.381.90$11,305
Dec 19981,1921489.201.77$11,229
Nov 19981,18212410.892.19$13,143
Oct 19981,25327112.421.97$16,096
Sep 19981,16123912.592.08$15,115
Aug 19981,26324911.301.91$14,747
Jul 19981,10122911.742.24$13,438
Jun 19981,06422411.242.24$12,461
May 19981,19913812.622.21$15,436
Apr 19981,13111013.042.51$15,024
Mar 19989494412.802.31$12,249
Feb 19989022413.952.30$12,638
Jan 19981,0242614.702.15$15,109
Dec 19971,1194816.322.41$18,378
Nov 19971,2343718.193.09$22,561
Oct 19971,1835019.253.15$22,930
Sep 19971,25613917.742.95$22,692
Aug 19971,23810717.862.55$22,384
Jul 19971,1018217.582.25$19,540
Jun 19971,1597917.242.26$20,159
May 19971,1307218.972.31$21,602
Apr 19971,1125517.882.08$19,997
Mar 19971,1905118.951.94$22,649
Feb 19978659920.492.21$17,942
Jan 199775618923.483.54$18,420
Dec 19961,11525623.32$26,002
Nov 19961,08222721.97$23,772
Oct 19961,12726323.31$26,270
Sep 199693224822.22$20,709
Aug 19961,01029620.26$20,463
Jul 19961,04128519.55$20,352
Jun 19961,02828118.73$19,254
May 19961,04315919.43$20,265
Apr 19968886321.51$19,101
Mar 19961,0959919.38$21,221
Feb 19961,0509416.98$17,829
Jan 19961,01611517.07$17,343
Dec 199596315017.19$16,554
Nov 199593417416.00$14,944
Oct 199587112815.43$13,440
Sep 199595317316.18$15,420
Aug 199593318815.92$14,853
Jul 199569210015.24$10,546
Jun 199588314916.41$14,490
May 19951,03019017.56$18,087
Apr 19951,09425817.73$19,397
Mar 19951,22422316.44$20,123
Feb 199587916716.58$14,574
Jan 19951,20118815.92$19,120
Dec 19941,20718515.03$18,141
Nov 19941,13024215.90$17,967
Oct 19941,17528715.58$18,307
Sep 19941,30210415.29$19,908
Aug 19941,14228716.13$18,420
Jul 19941,18125617.56$20,738
Jun 19941,12323517.09$19,192
May 19941,12318815.88$17,833
Apr 19941,16023014.14$16,402
Mar 19941,21423212.46$15,126
Feb 19941,23719112.50$15,463
Jan 19941,71819112.66$21,750
Dec 19931,03414912.33$12,749
Nov 19931,34318514.49$19,460
Oct 19931,38227915.85$21,905
Sep 19931,38828215.03$20,862
Aug 19931,47829715.66$23,145
Jul 19931,30727215.46$20,206
Jun 19931,1378316.79$19,090
May 19931,64911517.68$29,154
Apr 19931,32624518.05$23,934
Mar 19931,53726918.14$27,881
Feb 19931,34323717.90$24,040
Jan 19931,47124216.93$24,904

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.

Feb 2023 — as filed, then multipliedworked
Oil                    3 bbl  × $ 75.11 =       $225
Casinghead gas         0 Mcf  × $  2.47 =         $0

────────────────────────────────────────────────────
Month total                                     $225

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/21679 is the state's own key, not one this site invented.