HIRSCH ESTATE 538

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

Gas lease lease 133823District 04Field 078002002 tax incentive programmesCondensateGasSaveExport
Value, all time
$726 k
Jan 1993 – May 2026
Value, last 12 filed months
$7 k
at the published price for each month
Months reported
401
no gaps in the span
Streams
2
condensate, 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 164 leases and 164 wells, and the rule below applies to all of them.

Discovered
1979-07-17
as the register files it
Field class
Gas
the register's own label
Between wells
1,200 ft
minimum
From a lease line
467 ft
minimum

A drilling unit in this field needs at least 40 acres. The field rule took effect on 2010-11-02.

The Commission's schedule remark for this field reads: STATEWIDE RULES. NO P-15 & PLAT.

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
High Cost Gas111990-05-30122210
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
CondensateDisposition4,504 bbl$156,856
GasProduction288,981 Mcf$569,335
Total$726,192

149,508 Mcf of this lease's gas, across 42 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 (1)

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 27.7375, -99.1404. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.0 miles.

27.73750, -99.14042 · 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
0.0%
0 of 1 wells
With a plug date
0.0%
0 of 1 wells
Median depth
8,546 ft
1 wells filed one
Completion to plug
no well filed both dates

What the state filed about each well

On the RRC proration schedule
00.0%
A plug date is filed
00.0%
BothOn the schedule and plugged. Neither fact cancels the other.
00.0%
NeitherNo plug date, and not on the schedule.
1100.0%

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

The one well that filed a depth was drilled to 8,546 ft.

Completions filed
Dec 1991
1 of 1 wells

1 well

42-4793498428,546 ftDec 1991

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 2026092106.413.05$280
Apr 202608698.932.87$247
Mar 2026810289.753.15$1,039
Feb 2026012363.503.75$461
Jan 20261110159.138.00$1,458
Dec 202503456.664.41$150
Nov 2025920258.593.93$1,320
Oct 202502959.383.30$96
Sep 2025010062.743.08$308
Aug 2025011463.933.01$344
Jul 2025101266.743.32$707
Jun 2025011566.483.13$360
May 202503160.553.23$100
Apr 202527162.363.54$376
Mar 2025129667.704.27$1,222
Feb 202509270.884.34$399
Jan 2025010974.324.28$466
Dec 202406268.993.12$194
Nov 202486769.052.20$700
Oct 2024012571.372.28$285
Sep 2024011069.612.36$260
Aug 202405375.632.06$109
Jul 2024257979.932.15$2,168
Jun 2024011478.082.63$300
May 20240978.812.20$20
Apr 20243711284.451.66$3,310
Mar 20240480.301.55$6
Feb 2024529176.091.78$4,119
Jan 202408673.023.30$284
Dec 2023596771.262.61$4,379
Nov 202303177.892.81$87
Oct 20231021285.443.09$8,752
Sep 202308889.042.74$241
Aug 20230780.522.67$19
Jul 2023012174.852.64$320
Jun 202385368.962.26$5,868
May 20230370.622.23$7
Apr 20230178.122.24$2
Mar 2023939672.852.39$7,005
Feb 202307375.112.47$180
Jan 2023152376.533.39$1,226
Dec 202207576.415.73$430
Nov 202203085.005.65$169
Oct 2022432087.185.86$3,866
Sep 20220484.888.16$33
Aug 202207594.529.13$685
Jul 20225395101.587.54$6,100
Jun 2022044115.097.98$351
May 20220127109.378.43$1,071
Apr 2022048104.226.84$328
Mar 20222260108.885.08$2,700
Feb 2022013991.054.86$675
Jan 20220881.844.54$36
Dec 2021269371.323.90$2,217
Nov 2021010277.435.24$534
Oct 2021164179.795.71$1,511
Sep 2021010069.865.35$535
Aug 202107066.024.22$295
Jul 202109670.783.98$382
Jun 20211813269.493.38$1,697
May 2021018463.483.02$555
Apr 202101260.362.76$33
Mar 2021016461.302.72$446
Feb 2021613457.805.55$1,090
Jan 202101150.412.81$31
Dec 202002944.642.68$78
Nov 20201514938.772.71$985
Oct 202004236.972.48$104
Sep 20201113637.091.99$679
Aug 2020013439.982.39$320
Jul 202009738.371.83$177
Jun 2020013834.901.69$233
May 2020017616.921.81$319
Apr 2020226214.751.80$502
Mar 2020027030.341.86$501
Feb 2020124749.881.98$539
Jan 2020050557.252.09$1,058
Dec 201901959.012.30$44
Nov 201902155.302.75$58
Oct 2019639753.472.42$1,281
Sep 2019032255.052.66$856
Aug 20192130653.112.30$1,820
Jul 2019031956.272.46$785
Jun 20193332752.782.49$2,556
May 2019034758.482.74$951
Apr 20192928362.632.75$2,595
Mar 2019047756.803.06$1,461
Feb 20192629150.852.79$2,135
Jan 2019028146.033.23$907
Dec 20183539046.594.19$3,263
Nov 20181829152.934.24$2,186
Oct 2018029261.443.40$992
Sep 20183841859.543.11$3,562
Aug 2018050559.403.07$1,549
Jul 2018051465.142.93$1,507
Jun 20183844760.183.08$3,662
May 2018034365.382.90$995
Apr 20183954063.842.90$4,056
Mar 2018062661.222.79$1,745
Feb 2018041961.782.77$1,159
Jan 20184057062.874.01$4,800
Dec 2017069957.272.92$2,042
Nov 20174048655.423.12$3,732
Oct 2017057649.292.98$1,719
Sep 2017042947.523.09$1,324
Aug 20172056345.373.00$2,599
Jul 20172833843.873.09$2,272
Jun 2017031542.493.09$972
May 2017025945.373.26$845
Apr 20172214847.933.21$1,530
Mar 2017073546.772.98$2,193
Feb 20170050.452.95$0
Jan 20172148449.413.42$2,692
Dec 20160748.763.72$26
Nov 20160042.492.64$0
Oct 20161810646.193.09$1,159
Sep 20162426741.553.10$1,825
Aug 2016049241.442.92$1,439
Jul 2016018241.622.92$532
Jun 20163031845.352.69$2,215
May 2016049442.521.99$984
Apr 20163551236.561.99$2,299
Mar 2016045833.011.79$822
Feb 2016023826.472.06$491
Jan 20161618827.352.36$882
Dec 2015047032.362.00$941
Nov 2015035738.792.17$774
Oct 2015058243.552.43$1,412
Sep 2015025342.992.76$698
Aug 2015050340.162.87$1,445
Jul 20150048.152.95$0
Jun 2015014656.152.88$421
May 2015042555.212.96$1,256
Apr 20150149.822.71$3
Mar 20150242.892.93$6
Feb 2015026444.662.98$786
Jan 2015092643.433.10$2,871
Dec 2014018954.693.59$679
Nov 20140070.464.25$0
Oct 201407978.303.90$308
Sep 2014043786.164.05$1,768
Aug 2014030989.394.04$1,247
Jul 20140096.564.18$0
Jun 20140098.164.74$0
May 20140594.734.73$24
Apr 201405,07895.944.81$24,421
Mar 201401,04195.895.06$5,264
Feb 201401,38597.406.19$8,576
Jan 201402,01090.404.86$9,770
Dec 20130091.824.35$0
Nov 2013031488.853.74$1,174
Oct 2013042397.423.78$1,599
Sep 20130294104.113.72$1,093
Aug 2013037104.253.52$130
Jul 20130598102.523.72$2,223
Jun 2013041694.403.93$1,636
May 2013035894.834.15$1,485
Apr 2013040293.964.28$1,722
Mar 2013037593.623.91$1,467
Feb 2013057691.233.42$1,970
Jan 20130091.603.42$0
Dec 2012022886.773.42$780
Nov 2012030686.953.62$1,109
Oct 2012044989.383.40$1,526
Sep 201201094.672.92$29
Aug 2012036092.662.91$1,047
Jul 2012019085.133.02$574
Jun 2012054379.822.52$1,368
May 2012031591.612.49$784
Apr 201200101.652.00$0
Mar 201200105.052.22$0
Feb 201200101.102.57$0
Jan 2012043698.092.73$1,192
Dec 2011032496.873.24$1,050
Nov 2011054895.723.31$1,815
Oct 2011014584.983.65$529
Sep 2011039883.623.99$1,586
Aug 2011037083.404.15$1,535
Jul 2011037394.144.52$1,685
Jun 2011013892.904.64$640
May 2011050898.134.40$2,238
Apr 20110402105.964.33$1,742
Mar 2011058996.364.06$2,390
Feb 2011042085.644.18$1,756
Jan 2011030586.504.59$1,400
Dec 2010088085.734.35$3,826
Nov 2010028180.843.80$1,066
Oct 2010074578.103.51$2,614
Sep 2010050872.633.98$2,022
Aug 2010029873.684.42$1,317
Jul 2010055072.554.74$2,605
Jun 2010024670.364.91$1,208
May 2010071171.124.24$3,011
Apr 2010051881.694.12$2,136
Mar 20100078.394.39$0
Feb 2010011673.585.44$631
Jan 2010092574.365.96$5,517
Dec 20090071.445.48$0
Nov 2009035474.593.75$1,328
Oct 2009076872.544.11$3,157
Sep 20090165.543.06$3
Aug 2009010867.423.22$348
Jul 2009046961.133.46$1,625
Jun 2009055366.163.90$2,154
May 2009016154.743.93$632
Apr 2009040846.773.59$1,464
Mar 2009059342.144.06$2,407
Feb 20090032.814.63$0
Jan 2009027635.865.37$1,482
Dec 2008039737.105.98$2,373
Nov 2008035455.496.86$2,429
Oct 2008033375.246.92$2,305
Sep 20080343101.767.88$2,702
Aug 20087293114.228.48$3,285
Jul 20080305131.0811.39$3,474
Jun 20080279131.3313.03$3,636
May 20080342123.1711.57$3,958
Apr 20080417110.3110.45$4,360
Mar 20080378101.909.66$3,653
Feb 2008040592.538.77$3,552
Jan 2008056690.388.21$4,644
Dec 20075355388.337.30$8,719
Nov 2007047991.677.29$3,493
Oct 2007090882.856.92$6,285
Sep 20070075.846.24$0
Aug 20070069.066.39$0
Jul 200708470.906.39$537
Jun 2007057962.007.55$4,371
May 2007059558.747.85$4,669
Apr 2007065259.617.81$5,089
Mar 2007042056.927.30$3,067
Feb 2007062355.108.22$5,119
Jan 2007035850.306.73$2,408
Dec 2006030856.656.92$2,131
Nov 2006038554.207.62$2,933
Oct 2006054754.906.01$3,290
Sep 20065846160.085.04$5,807
Aug 2006049168.717.34$3,604
Jul 2006049269.376.34$3,121
Jun 2006045166.286.38$2,879
May 2006029066.016.42$1,863
Apr 2006034364.397.36$2,525
Mar 2006710156.707.08$1,112
Feb 2006031157.597.75$2,411
Jan 2006057960.598.93$5,172
Dec 2005064654.9413.42$8,666
Nov 2005074754.6910.59$7,910
Oct 2005041658.3413.80$5,739
Sep 2005073161.4512.08$8,830
Aug 200501,76461.519.80$17,282
Jul 200507455.697.84$580
Jun 200508852.337.38$650
May 200518845.226.65$631
Apr 2005025549.207.36$1,877
Mar 2005610150.377.15$1,025
Feb 20051827945.226.31$2,575
Jan 20051342743.166.32$3,261
Dec 2004920339.866.75$1,729
Nov 20041638145.286.33$3,136
Oct 2004823249.706.52$1,909
Sep 20040443.245.28$21
Aug 20042042.375.55$85
Jul 20041960038.286.08$4,378
Jun 20041767536.106.43$4,956
May 2004728237.486.49$2,094
Apr 2004714034.475.86$1,061
Mar 20040034.365.53$0
Feb 20045032.455.51$162
Jan 20042436332.036.30$3,055
Dec 20032871930.266.30$5,378
Nov 2003048528.804.60$2,229
Oct 200305528.174.76$262
Sep 2003037826.314.75$1,795
Aug 200303529.765.13$180
Jul 2003041129.415.17$2,125
Jun 200306228.565.98$371
May 200307126.595.97$424
Apr 20030026.675.41$0
Mar 2003032931.146.10$2,006
Feb 2003085933.487.93$6,808
Jan 200304830.315.58$268
Dec 20020626.914.85$29
Nov 20020024.664.14$0
Oct 20020026.464.23$0
Sep 2002053427.443.64$1,941
Aug 2002090825.963.16$2,873
Jul 2002029124.583.06$891
Jun 2002010223.733.34$341
May 2002040724.663.58$1,459
Apr 2002065423.653.51$2,297
Mar 2002067622.003.10$2,097
Feb 2002066018.222.38$1,568
Jan 200207917.172.38$188
Dec 2001038716.932.36$915
Nov 2001020818.072.41$500
Oct 2001016819.782.53$425
Sep 200105224.262.25$117
Aug 200105924.873.05$180
Jul 20010023.933.20$0
Jun 20010624.563.82$23
May 20010025.524.31$0
Apr 2001059824.685.34$3,191
Mar 2001049724.545.38$2,672
Feb 2001034127.755.77$1,967
Jan 2001012927.478.40$1,083
Dec 2000021026.889.12$1,916
Nov 2000024232.215.66$1,369
Oct 200006131.235.15$314
Sep 2000035631.875.19$1,846
Aug 2000021429.644.54$972
Jul 2000032228.534.09$1,317
Jun 200005629.304.40$246
May 20000027.263.68$0
Apr 20000024.513.12$0
Mar 200001,75428.422.86$5,016
Feb 200003,34927.622.73$9,131
Jan 20000025.272.48$0
Dec 19990024.282.42$0
Nov 19990023.192.43$0
Oct 19990020.982.80$0
Sep 19990321.752.62$8
Aug 19990019.262.88$0
Jul 19990017.892.37$0
Jun 199901,26215.942.36$2,981
May 199904,09215.792.32$9,498
Apr 199901015.102.21$22
Mar 19990012.471.84$0
Feb 1999009.981.82$0
Jan 19990010.381.90$0
Dec 199802549.201.77$450
Nov 19980010.892.19$0
Oct 1998059112.421.97$1,164
Sep 199802,99112.592.08$6,229
Aug 1998046411.301.91$885
Jul 19983011.742.24$35
Jun 1998341,52711.242.24$3,798
May 1998582,23212.622.21$5,657
Apr 1998501,82413.042.51$5,222
Mar 19980012.802.31$0
Feb 19980013.952.30$0
Jan 19980014.702.15$0
Dec 199715416.322.41$147
Nov 19971318.193.09$27
Oct 1997301,30619.253.15$4,691
Sep 1997472,40017.742.95$7,925
Aug 1997502,70117.862.55$7,793
Jul 19971307,05217.582.25$18,131
Jun 1997371,72117.242.26$4,523
May 1997542,37818.972.31$6,514
Apr 1997582,78417.882.08$6,836
Mar 1997951,92118.951.94$5,525
Feb 199715595420.492.21$5,280
Jan 19971182,13823.483.54$10,339
Dec 19961251,44923.32$2,915
Nov 19961982,38121.97$4,350
Oct 19962142,89323.31$4,988
Sep 19961783222.22$378
Aug 19962083820.26$405
Jul 1996491,62319.55$958
Jun 1996542,92118.73$1,011
May 1996773,70619.43$1,496
Apr 1996462,13921.51$989
Mar 19965962519.38$1,143
Feb 19961352,19516.98$2,292
Jan 1996953,60517.07$1,622
Dec 1995863,99517.19$1,478
Nov 1995603,30916.00$960
Oct 1995532,81015.43$818
Sep 1995543,37616.18$874
Aug 1995551,80215.92$876
Jul 1995913,71215.24$1,387
Jun 1995454,17216.41$738
May 1995623,63317.56$1,089
Apr 1995484,17017.73$851
Mar 19951096,53516.44$1,792
Feb 1995654,17016.58$1,078
Jan 1995665,46915.92$1,051
Dec 1994355,14015.03$526
Nov 199425,35615.90$32
Oct 1994683815.58$93
Sep 1994121,58715.29$183
Aug 1994112,24016.13$177
Jul 1994102,37517.56$176
Jun 199402,46917.09$0
May 199402,73315.88$0
Apr 199403,39414.14$0
Mar 199403,82312.46$0
Feb 199403,79412.50$0
Jan 199409,77612.66$0
Dec 199306,74712.33$0
Nov 1993010,03514.49$0
Oct 199309,70015.85$0
Sep 199306,96415.03$0
Aug 19930015.66$0
Jul 19930015.46$0
Jun 199305316.79$0
May 1993112417.68$18
Apr 19930018.05$0
Mar 19930018.14$0
Feb 19930017.90$0
Jan 19930016.93$0

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
Condensate             0 bbl  × $106.41 =         $0
Gas                   92 Mcf  × $  3.05 =       $280

────────────────────────────────────────────────────
Month total                                     $280

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. 04/G/133823 is the state's own key, not one this site invented.