MALAKOFF UNIT

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

Gas lease lease 151971District 04Field 940955102 tax incentive programmesCondensateGasSaveExport
Value, all time
$1.9 M
Sep 1994 – May 2026
Value, last 12 filed months
$10 k
at the published price for each month
Months reported
381
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 1 leases and 1 wells, and the rule below applies to all of them.

Discovered
1994-09-02
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 1994-12-19.

The Commission's schedule remark for this field reads: ALLOCATION BASED ON 95% DELIVERABILTY & 5% PER WELL

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 Gas112001-08-21144579
NGPA1none

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
CondensateDisposition1,165 bbl$30,151
GasProduction930,044 Mcf$1,887,290
Total$1,917,441

466,292 Mcf of this lease's gas, across 28 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 27.4049, -99.4720. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.0 miles.

27.40487, -99.47204 · 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
7,110 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 7,110 ft.

1 well

42-4793614127,110 ft

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 (381)

Volume × price = value, one row per cycle. The price columns are the same series published on the prices page — nothing here is modelled.

381 months

May 20260232106.413.05$707
Apr 2026023498.932.87$672
Mar 2026023889.753.15$750
Feb 2026024063.503.75$900
Jan 2026016259.138.00$1,296
Dec 2025027256.664.41$1,200
Nov 2025033358.593.93$1,308
Oct 20250059.383.30$0
Sep 2025012062.743.08$369
Aug 2025023463.933.01$705
Jul 2025026566.743.32$879
Jun 2025031266.483.13$976
May 2025032560.553.23$1,051
Apr 2025029462.363.54$1,042
Mar 2025030667.704.27$1,306
Feb 2025027470.884.34$1,189
Jan 2025023474.324.28$1,001
Dec 2024025668.993.12$799
Nov 2024029069.052.20$638
Oct 2024033771.372.28$769
Sep 2024029469.612.36$695
Aug 2024035275.632.06$726
Jul 2024030979.932.15$663
Jun 2024039178.082.63$1,030
May 2024039878.812.20$875
Apr 2024036584.451.66$606
Mar 2024034080.301.55$525
Feb 2024023476.091.78$417
Jan 2024028373.023.30$933
Dec 2023027171.262.61$708
Nov 2023026877.892.81$752
Oct 2023011385.443.09$349
Sep 20230089.042.74$0
Aug 2023021180.522.67$564
Jul 2023034074.852.64$898
Jun 2023036068.962.26$813
May 2023048670.622.23$1,083
Apr 2023047078.122.24$1,052
Mar 2023037972.852.39$907
Feb 2023023575.112.47$579
Jan 2023034176.533.39$1,155
Dec 2022026376.415.73$1,507
Nov 2022025285.005.65$1,423
Oct 2022037787.185.86$2,211
Sep 2022034184.888.16$2,784
Aug 202201894.529.13$164
Jul 20220454101.587.54$3,424
Jun 20220566115.097.98$4,515
May 20220514109.378.43$4,335
Apr 20220687104.226.84$4,697
Mar 20220549108.885.08$2,787
Feb 2022067291.054.86$3,265
Jan 2022078381.844.54$3,553
Dec 2021099071.323.90$3,860
Nov 202101,17177.435.24$6,132
Oct 2021062679.795.71$3,577
Sep 2021062169.865.35$3,323
Aug 202101,21166.024.22$5,111
Jul 202101,32670.783.98$5,280
Jun 202101,36769.493.38$4,621
May 202101,54963.483.02$4,674
Apr 202101,70860.362.76$4,711
Mar 202101,82961.302.72$4,969
Feb 202101,79957.805.55$9,981
Jan 202102,32450.412.81$6,531
Dec 202002,37744.642.68$6,360
Nov 202002,83838.772.71$7,681
Oct 202002,41236.972.48$5,978
Sep 202002,97937.091.99$5,931
Aug 202003,40839.982.39$8,128
Jul 202003,69638.371.83$6,746
Jun 2020092134.901.69$1,557
May 2020027816.921.81$505
Apr 2020026414.751.80$476
Mar 2020027930.341.86$518
Feb 2020025749.881.98$509
Jan 2020027057.252.09$566
Dec 2019026159.012.30$601
Nov 2019025255.302.75$693
Oct 2019027053.472.42$653
Sep 2019027155.052.66$720
Aug 2019027953.112.30$643
Jul 2019028156.272.46$691
Jun 2019027252.782.49$678
May 2019028158.482.74$770
Apr 2019027262.632.75$748
Mar 2019028256.803.06$864
Feb 2019026350.852.79$734
Jan 2019031246.033.23$1,007
Dec 2018030046.594.19$1,256
Nov 2018027452.934.24$1,161
Oct 2018026761.443.40$907
Sep 2018028959.543.11$898
Aug 2018031059.403.07$951
Jul 2018030965.142.93$906
Jun 2018031860.183.08$978
May 2018034765.382.90$1,007
Apr 2018033663.842.90$975
Mar 2018034861.222.79$970
Feb 2018032361.782.77$893
Jan 2018033562.874.01$1,343
Dec 2017033457.272.92$976
Nov 2017030855.423.12$960
Oct 2017032349.292.98$964
Sep 2017031447.523.09$969
Aug 2017033845.373.00$1,015
Jul 2017034343.873.09$1,059
Jun 2017033742.493.09$1,040
May 2017037845.373.26$1,234
Apr 2017033747.933.21$1,082
Mar 2017035046.772.98$1,044
Feb 2017032750.452.95$966
Jan 2017035949.413.42$1,227
Dec 2016034548.763.72$1,284
Nov 2016032342.492.64$854
Oct 2016034346.193.09$1,060
Sep 2016035341.553.10$1,095
Aug 2016034841.442.92$1,018
Jul 2016034941.622.92$1,021
Jun 2016034845.352.69$935
May 2016036742.521.99$731
Apr 2016034836.561.99$693
Mar 2016037133.011.79$666
Feb 2016035426.472.06$731
Jan 2016038127.352.36$901
Dec 2015040532.362.00$811
Nov 2015032138.792.17$696
Oct 2015039543.552.43$959
Sep 2015038042.992.76$1,048
Aug 2015039940.162.87$1,146
Jul 2015041748.152.95$1,228
Jun 2015037556.152.88$1,081
May 2015040955.212.96$1,209
Apr 2015042249.822.71$1,142
Mar 2015041442.892.93$1,215
Feb 2015038544.662.98$1,146
Jan 2015041243.433.10$1,277
Dec 2014039754.693.59$1,426
Nov 2014040270.464.25$1,709
Oct 2014041678.303.90$1,623
Sep 2014041686.164.05$1,683
Aug 2014043589.394.04$1,755
Jul 2014043596.564.18$1,818
Jun 2014042098.164.74$1,989
May 2014044294.734.73$2,089
Apr 2014043395.944.81$2,082
Mar 2014044595.895.06$2,250
Feb 2014040197.406.19$2,483
Jan 2014045190.404.86$2,192
Dec 2013046291.824.35$2,012
Nov 2013045188.853.74$1,686
Oct 2013048397.423.78$1,825
Sep 20130474104.113.72$1,762
Aug 20130498104.253.52$1,754
Jul 20130498102.523.72$1,851
Jun 2013049994.403.93$1,963
May 2013059194.834.15$2,452
Apr 2013040793.964.28$1,743
Mar 2013050493.623.91$1,972
Feb 2013046891.233.42$1,601
Jan 2013038391.603.42$1,310
Dec 2012049786.773.42$1,700
Nov 2012046286.953.62$1,675
Oct 2012052589.383.40$1,785
Sep 2012051394.672.92$1,497
Aug 2012053192.662.91$1,544
Jul 2012050085.133.02$1,510
Jun 2012046779.822.52$1,176
May 2012040291.612.49$1,000
Apr 20120367101.652.00$733
Mar 20120452105.052.22$1,004
Feb 20120465101.102.57$1,195
Jan 2012052098.092.73$1,422
Dec 2011044996.873.24$1,455
Nov 20117245195.723.31$8,385
Oct 2011049284.983.65$1,795
Sep 2011046383.623.99$1,845
Aug 2011044583.404.15$1,846
Jul 2011047094.144.52$2,123
Jun 2011050892.904.64$2,357
May 2011046598.134.40$2,048
Apr 20110533105.964.33$2,310
Mar 2011044496.364.06$1,801
Feb 2011050885.644.18$2,123
Jan 2011042886.504.59$1,964
Dec 2010052385.734.35$2,274
Nov 2010046880.843.80$1,776
Oct 2010051978.103.51$1,821
Sep 2010049572.633.98$1,970
Aug 2010049373.684.42$2,179
Jul 2010048172.554.74$2,278
Jun 2010047970.364.91$2,352
May 2010043771.124.24$1,851
Apr 2010043881.694.12$1,806
Mar 2010046278.394.39$2,028
Feb 2010039773.585.44$2,161
Jan 2010044974.365.96$2,678
Dec 2009044871.445.48$2,457
Nov 2009045174.593.75$1,692
Oct 2009046272.544.11$1,899
Sep 2009051065.543.06$1,563
Aug 2009058667.423.22$1,886
Jul 2009058561.133.46$2,027
Jun 2009068466.163.90$2,664
May 2009064254.743.93$2,520
Apr 2009068546.773.59$2,457
Mar 2009080842.144.06$3,280
Feb 2009038932.814.63$1,802
Jan 2009071835.865.37$3,856
Dec 2008097537.105.98$5,828
Nov 2008057555.496.86$3,945
Oct 2008055975.246.92$3,869
Sep 20080590101.767.88$4,647
Aug 20080674114.228.48$5,718
Jul 20080678131.0811.39$7,722
Jun 20080857131.3313.03$11,169
May 200801,200123.1711.57$13,889
Apr 200801,092110.3110.45$11,417
Mar 200801,206101.909.66$11,655
Feb 200801,31392.538.77$11,516
Jan 200801,27690.388.21$10,471
Dec 200701,06588.337.30$7,777
Nov 200701,16991.677.29$8,524
Oct 200701,16682.856.92$8,071
Sep 200701,05375.846.24$6,575
Aug 200701,53469.066.39$9,799
Jul 200701,14170.906.39$7,289
Jun 200701,18162.007.55$8,915
May 200701,10058.747.85$8,631
Apr 200701,28159.617.81$9,998
Mar 200701,31356.927.30$9,587
Feb 2007097755.108.22$8,027
Jan 2007022750.306.73$1,527
Dec 2006067656.656.92$4,677
Nov 2006071554.207.62$5,447
Oct 200601,36454.906.01$8,203
Sep 2006081160.085.04$4,085
Aug 200601,30468.717.34$9,571
Jul 200601,47069.376.34$9,324
Jun 200601,42766.286.38$9,110
May 200601,16766.016.42$7,498
Apr 200601,49864.397.36$11,026
Mar 200601,98956.707.08$14,088
Feb 2006161,36757.597.75$11,517
Jan 200602,26060.598.93$20,189
Dec 200501,70354.9413.42$22,846
Nov 200502,60454.6910.59$27,572
Oct 200508,47258.3413.80$116,878
Sep 200503,93661.4512.08$47,543
Aug 200502,25161.519.80$22,053
Jul 200501,21855.697.84$9,554
Jun 2005020552.337.38$1,513
May 20050045.226.65$0
Apr 20050049.207.36$0
Mar 20050050.377.15$0
Feb 20050045.226.31$0
Jan 20050043.166.32$0
Dec 20040039.866.75$0
Nov 2004111045.286.33$5,026
Oct 200407,55549.706.52$49,222
Sep 200401,81143.245.28$9,569
Aug 200402,03042.375.55$11,268
Jul 2004068538.286.08$4,168
Jun 200401,02136.106.43$6,568
May 200401,47437.486.49$9,573
Apr 200401,75234.475.86$10,264
Mar 200402,38534.365.53$13,189
Feb 200401,66532.455.51$9,174
Jan 200402,50832.036.30$15,800
Dec 200302,55530.266.30$16,101
Nov 200303,64428.804.60$16,745
Oct 200303,18628.174.76$15,164
Sep 200301,47826.314.75$7,020
Aug 2003085229.765.13$4,371
Jul 200301,38229.415.17$7,146
Jun 20031561,35428.565.98$12,556
May 200301,55126.595.97$9,264
Apr 200301,19126.675.41$6,440
Mar 200301,56131.146.10$9,516
Feb 2003082533.487.93$6,539
Jan 200301,04230.315.58$5,816
Dec 200201,25026.914.85$6,067
Nov 200201,50824.664.14$6,239
Oct 200201,60026.464.23$6,767
Sep 200201,73427.443.64$6,303
Aug 200201,85225.963.16$5,860
Jul 200201,84724.583.06$5,655
Jun 200201,66423.733.34$5,555
May 200201,69324.663.58$6,068
Apr 200202,06523.653.51$7,253
Mar 200201,79422.003.10$5,566
Feb 200201,60518.222.38$3,813
Jan 200202,02917.172.38$4,820
Dec 200101,89916.932.36$4,490
Nov 200101,99918.072.41$4,809
Oct 200102,04219.782.53$5,164
Sep 200102,06324.262.25$4,644
Aug 200101,72724.873.05$5,273
Jul 200102,11623.933.20$6,765
Jun 200101,86924.563.82$7,147
May 200102,32125.524.31$9,997
Apr 200102,21224.685.34$11,802
Mar 200102,21224.545.38$11,893
Feb 200101,77627.755.77$10,242
Jan 200101,97127.478.40$16,554
Dec 200001,74226.889.12$15,891
Nov 200002,41032.215.66$13,636
Oct 200002,32331.235.15$11,953
Sep 200002,01831.875.19$10,466
Aug 200002,51829.644.54$11,434
Jul 200002,55228.534.09$10,437
Jun 200002,80929.304.40$12,352
May 200003,13127.263.68$11,521
Apr 200002,77224.513.12$8,638
Mar 200002,49928.422.86$7,147
Feb 200002,99827.622.73$8,174
Jan 200003,76525.272.48$9,339
Dec 199904,01824.282.42$9,739
Nov 199903,99223.192.43$9,716
Oct 199985,86320.982.80$16,606
Sep 199903,29421.752.62$8,626
Aug 199901,88419.262.88$5,418
Jul 199902,53417.892.37$6,012
Jun 1999993,00515.942.36$8,676
May 199901,76515.792.32$4,097
Apr 199903,47615.102.21$7,675
Mar 199905,06612.471.84$9,313
Feb 19991045,1839.981.82$10,460
Jan 199905,71710.381.90$10,862
Dec 199803,7229.201.77$6,600
Nov 199803,07010.892.19$6,710
Oct 199803,59012.421.97$7,069
Sep 199805,16412.592.08$10,755
Aug 199806,25411.301.91$11,929
Jul 199807,36511.742.24$16,477
Jun 199805,81311.242.24$13,005
May 199807,30212.622.21$16,111
Apr 1998578,04813.042.51$20,906
Mar 199805,42012.802.31$12,517
Feb 199806,13213.952.30$14,098
Jan 199805,97214.702.15$12,868
Dec 199705,44716.322.41$13,133
Nov 199752,78518.193.09$8,692
Oct 199704,59219.253.15$14,464
Sep 1997134,42917.742.95$13,318
Aug 199705,05617.862.55$12,917
Jul 199705,08317.582.25$11,421
Jun 199704,51817.242.26$10,198
May 199705,43018.972.31$12,535
Apr 199705,72717.882.08$11,928
Mar 199706,24918.951.94$12,118
Feb 199706,04020.492.21$13,324
Jan 199706,00123.483.54$21,242
Dec 199606,91623.32$0
Nov 1996827,03121.97$1,802
Oct 199608,00423.31$0
Sep 199607,70122.22$0
Aug 199607,67320.26$0
Jul 199608,75919.55$0
Jun 199609,21218.73$0
May 1996010,50119.43$0
Apr 1996011,09021.51$0
Mar 1996011,22619.38$0
Feb 199609,91016.98$0
Jan 1996012,71317.07$0
Dec 1995014,45317.19$0
Nov 199511813,66216.00$1,888
Oct 1995016,55215.43$0
Sep 1995017,96116.18$0
Aug 19959517,79515.92$1,512
Jul 1995020,66315.24$0
Jun 1995025,82116.41$0
May 1995023,84917.56$0
Apr 19956723,14817.73$1,188
Mar 19957622,13616.44$1,249
Feb 1995027,27816.58$0
Jan 19954631,56815.92$732
Dec 1994017,01815.03$0
Nov 19944021,66515.90$636
Oct 1994030,57615.58$0
Sep 1994031,41115.29$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                  232 Mcf  × $  3.05 =       $707

────────────────────────────────────────────────────
Month total                                     $707

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/151971 is the state's own key, not one this site invented.