MALLET "C"

Operated by EXTEX OPERATING COMPANY (P-5 257062) in the SLAUGHTER field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 5985District 8AField 83991001Hydrogen sulphide fieldNGPA filingOilCasinghead gasSaveExport
Value, all time
$4.5 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 160 leases and 6,532 wells, and the rule below applies to all of them.

Discovered
1937-12-31
as the register files it
Field class
Oil
the register's own label
Between wells
880 ft
minimum
From a lease line
440 ft
minimum

A drilling unit in this field needs at least 17 acres. The field rule took effect on 1993-02-02.

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: UNITS MAY BE 17.7 AC. OR UP TO 35.4 AC.

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
OilDisposition114,115 bbl$4,153,224
Casinghead gasProduction118,828 Mcf$309,169
Total$4,462,394

56,580 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 (13)

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 33.4135, -102.6204. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.8 miles.

33.41349, -102.62136 · 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
53.8%
7 of 13 wells
With a plug date
30.8%
4 of 13 wells
Median depth
5,107 ft
12 wells filed one
Completion to plug
26.4 years
median over 3 wells

What the state filed about each well

On the RRC proration schedule
753.8%
A plug date is filed
430.8%
BothOn the schedule and plugged. Neither fact cancels the other.
430.8%
NeitherNo plug date, and not on the schedule.
646.2%

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, 12 of 13 wells. Median 5,107 ft, with the middle half between 5,071 and 5,200 ft; the shallowest is 217 ft and the deepest 5,750 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, 11 of 13 wells, Apr 1965 – Dec 1991. This is the LAST completion filed on each wellbore, not the first — a well recompleted in 2019 counts once, in the 2010s.

Completions filed
Apr 1965 – Dec 1991
11 of 13 wells; 2 filed none
Plug dates filed
Jul 2004 – Oct 2013
4 of 13 wells; 9 filed none

Last completion to plug: a median of 26.4 years across the 3 wells that filed both dates, with the middle half between 25.4 years and 35.3 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

13 wells

42-0790149375,051 ftJul 2004Yes
42-079015054
42-0790150235,120 ftDec 1991
42-0790148955,078 ftOct 1990Yes
42-0790145015,189 ftApr 1990Yes
42-0790149625,030 ftJun 1989Oct 2013Yes
42-0793043495,750 ftFeb 1988
42-07932135125,200 ftFeb 1986Jul 2012Yes
42-07932136115,200 ftNov 1985
42-07931027105,200 ftFeb 1979
42-0790149865,094 ftAug 1978Yes
42-0790149585,078 ftJul 1966Sep 2010Yes
42-079818021WS217 ftApr 1965

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 2024160068.993.12$11,038
Nov 20240069.052.20$0
Oct 20240071.372.28$0
Sep 20240169.612.36$2
Aug 20240175.632.06$2
Jul 20240079.932.15$0
Jun 20240178.082.63$3
May 20240278.812.20$4
Apr 20240284.451.66$3
Mar 20240280.301.55$3
Feb 20240176.091.78$2
Jan 20240073.023.30$0
Dec 20230071.262.61$0
Nov 20230077.892.81$0
Oct 20230185.443.09$3
Sep 20230089.042.74$0
Aug 20230080.522.67$0
Jul 20230074.852.64$0
Jun 20230068.962.26$0
May 20230570.622.23$11
Apr 20230878.122.24$18
Mar 20230972.852.39$22
Feb 20230875.112.47$20
Jan 20230276.533.39$7
Dec 20220076.415.73$0
Nov 202202085.005.65$113
Oct 202208087.185.86$469
Sep 2022016684.888.16$1,355
Aug 2022011794.529.13$1,068
Jul 20220195101.587.54$1,471
Jun 20220194115.097.98$1,548
May 20220243109.378.43$2,049
Apr 20220209104.226.84$1,429
Mar 202216773108.885.08$18,554
Feb 202202891.054.86$136
Jan 202211214481.844.54$9,820
Dec 2021014571.323.90$565
Nov 202116611177.435.24$13,435
Oct 202105079.795.71$286
Sep 20211674469.865.35$11,902
Aug 2021014266.024.22$599
Jul 202109570.783.98$378
Jun 202104669.493.38$156
May 20211603763.483.02$10,268
Apr 202101560.362.76$41
Mar 202102261.302.72$60
Feb 202102457.805.55$133
Jan 20211672750.412.81$8,494
Dec 202002344.642.68$62
Nov 202001838.772.71$49
Oct 20201653436.972.48$6,184
Sep 202003637.091.99$72
Aug 2020014239.982.39$339
Jul 20201699938.371.83$6,665
Jun 202009234.901.69$156
May 2020010416.921.81$189
Apr 202003214.751.80$58
Mar 20201653530.341.86$5,071
Feb 202001349.881.98$26
Jan 20200157.252.09$2
Dec 20190059.012.30$0
Nov 20190355.302.75$8
Oct 201904453.472.42$106
Sep 201905655.052.66$149
Aug 2019010153.112.30$233
Jul 2019011456.272.46$280
Jun 2019010552.782.49$262
May 201916710258.482.74$10,046
Apr 201906262.632.75$171
Mar 201903356.803.06$101
Feb 201904150.852.79$114
Jan 20191684646.033.23$7,882
Dec 201803746.594.19$155
Nov 20181713452.934.24$9,195
Oct 201806061.443.40$204
Sep 201804159.543.11$127
Aug 20181714759.403.07$10,302
Jul 2018015465.142.93$452
Jun 2018010560.183.08$323
May 201817312965.382.90$11,685
Apr 2018012463.842.90$360
Mar 20180861.222.79$22
Feb 20181701361.782.77$10,539
Jan 201803262.874.01$128
Dec 2017159157.272.92$9,109
Nov 201701155.423.12$34
Oct 20171664549.292.98$8,316
Sep 201701047.523.09$31
Aug 20171632445.373.00$7,467
Jul 201703443.873.09$105
Jun 201701742.493.09$52
May 20171682145.373.26$7,691
Apr 201702447.933.21$77
Mar 20171682346.772.98$7,926
Feb 201705050.452.95$148
Jan 201703549.413.42$120
Dec 20161712148.763.72$8,416
Nov 201607142.492.64$188
Oct 20161675246.193.09$7,874
Sep 201604641.553.10$143
Aug 20161724041.442.92$7,245
Jul 20161594641.622.92$6,752
Jun 20160745.352.69$19
May 201609442.521.99$187
Apr 201616615236.561.99$6,372
Mar 201604733.011.79$84
Feb 20160326.472.06$6
Jan 20160027.352.36$0
Dec 20150532.362.00$10
Nov 20151605838.792.17$6,332
Oct 201502943.552.43$70
Sep 2015013842.992.76$381
Aug 20151584740.162.87$6,480
Jul 201502148.152.95$62
Jun 20151683156.152.88$9,523
May 201503255.212.96$95
Apr 20151654949.822.71$8,353
Mar 20151603442.892.93$6,962
Feb 201503144.662.98$92
Jan 20151561543.433.10$6,822
Dec 20141652754.693.59$9,121
Nov 20141722370.464.25$12,217
Oct 20141594278.303.90$12,614
Sep 20143274086.164.05$28,336
Aug 20141627789.394.04$14,792
Jul 20141696496.564.18$16,586
Jun 20141645998.164.74$16,378
May 20143266294.734.73$31,175
Apr 20141656795.944.81$16,152
Mar 20141646295.895.06$16,039
Feb 20143294797.406.19$32,336
Jan 20141657590.404.86$15,281
Dec 20131606591.824.35$14,974
Nov 201333211988.853.74$29,943
Oct 20131694097.423.78$16,615
Sep 201333595104.113.72$35,230
Aug 2013165177104.253.52$17,825
Jul 2013324154102.523.72$33,789
Jun 201316110294.403.93$15,600
May 201316919994.834.15$16,852
Apr 201316917193.964.28$16,612
Mar 201333017393.623.91$31,572
Feb 201316414091.233.42$15,441
Jan 201316612691.603.42$15,637
Dec 201233416186.773.42$29,532
Nov 2012014386.953.62$518
Oct 201233812589.383.40$30,635
Sep 201216914794.672.92$16,428
Aug 201233216592.662.91$31,243
Jul 201216220085.133.02$14,395
Jun 201233120179.822.52$26,927
May 201216920991.612.49$16,002
Apr 2012336208101.652.00$34,570
Mar 2012168197105.052.22$18,086
Feb 2012331168101.102.57$33,896
Jan 201217215398.092.73$17,290
Dec 201116215196.873.24$16,182
Nov 201133214795.723.31$32,266
Oct 201116917184.983.65$14,986
Sep 201133118983.623.99$28,432
Aug 201116417083.404.15$14,383
Jul 201133320994.144.52$32,293
Jun 201116720392.904.64$16,456
May 201134016898.134.40$34,104
Apr 2011344158105.964.33$37,135
Mar 201117417596.364.06$17,477
Feb 201116412585.644.18$14,567
Jan 201117122486.504.59$15,819
Dec 201033824485.734.35$30,038
Nov 201033619280.843.80$27,891
Oct 201016517678.103.51$13,504
Sep 201033217972.633.98$24,825
Aug 201033719373.684.42$25,683
Jul 201016121872.554.74$12,713
Jun 201016720870.364.91$12,771
May 201032115271.124.24$23,473
Apr 201015911381.694.12$13,455
Mar 201033511178.394.39$26,748
Feb 201033110973.585.44$24,948
Jan 201016812774.365.96$13,250
Dec 200917115671.445.48$13,072
Nov 200933516174.593.75$25,592
Oct 200917016972.544.11$13,026
Sep 200932717165.543.06$21,956
Aug 200932323067.423.22$22,517
Jul 200916822761.133.46$11,056
Jun 200931619866.163.90$21,678
May 200948918654.743.93$27,498
Apr 2009018746.773.59$671
Mar 200932818242.144.06$14,561
Feb 2009167832.814.63$5,516
Jan 2009334035.865.37$11,977
Dec 2008172037.105.98$6,381
Nov 2008334055.496.86$18,534
Oct 2008334375.246.92$25,151
Sep 20081720101.767.88$17,503
Aug 200833917114.228.48$38,865
Jul 200834248131.0811.39$45,376
Jun 2008166187131.3313.03$24,238
May 2008340321123.1711.57$45,593
Apr 2008168310110.3110.45$21,773
Mar 2008342386101.909.66$38,580
Feb 200833833192.538.77$34,178
Jan 200833127090.388.21$32,131
Dec 200716825288.337.30$16,680
Nov 20071648891.677.29$15,676
Oct 20073338382.856.92$28,164
Sep 200732710775.846.24$25,468
Aug 200716717069.066.39$12,619
Jul 200733926570.906.39$25,728
Jun 200729121062.007.55$19,627
May 200734023058.747.85$21,776
Apr 200717019159.617.81$11,624
Mar 200749822656.927.30$29,996
Feb 200716915555.108.22$10,585
Jan 20071689350.306.73$9,076
Dec 200634810656.656.92$20,448
Nov 200634214154.207.62$19,610
Oct 200632717754.906.01$19,017
Sep 200616818660.085.04$11,030
Aug 200633528068.717.34$25,073
Jul 200632931369.376.34$24,808
Jun 200634231966.286.38$24,704
May 200616931866.016.42$13,199
Apr 200633527864.397.36$23,617
Mar 200632528856.707.08$20,467
Feb 200633126257.597.75$21,093
Jan 200632120260.598.93$21,254
Dec 200516325754.9413.42$12,403
Nov 200534622154.6910.59$21,263
Oct 200534727458.3413.80$24,024
Sep 200517419761.4512.08$13,072
Aug 200551017461.519.80$33,075
Jul 200517418955.697.84$11,173
Jun 200534327552.337.38$19,979
May 200517227845.226.65$9,627
Apr 200533730949.207.36$18,855
Mar 200533934550.377.15$19,544
Feb 200517159645.226.31$11,495
Jan 200534649943.166.32$18,088
Dec 200434329339.866.75$15,650
Nov 2004342045.286.33$15,486
Oct 200434217649.706.52$18,144
Sep 200432938343.245.28$16,250
Aug 2004161042.375.55$6,822
Jul 200416912,57538.286.08$82,978
Jun 200416138836.106.43$8,308
May 200417429037.486.49$8,405
Apr 200451034434.475.86$19,595
Mar 200414644634.365.53$7,483
Feb 200416932032.455.51$7,247
Jan 200435324232.036.30$12,831
Dec 200333918530.266.30$11,424
Nov 200334612028.804.60$10,516
Oct 200317410928.174.76$5,420
Sep 2003337026.314.75$8,866
Aug 2003172029.765.13$5,119
Jul 200334427029.415.17$11,513
Jun 200334223828.565.98$11,191
May 200333724226.595.97$10,406
Apr 2003344026.675.41$9,174
Mar 200317210631.146.10$6,002
Feb 2003336033.487.93$11,249
Jan 200331821130.315.58$10,816
Dec 20023287326.914.85$9,181
Nov 200232710824.664.14$8,511
Oct 200232016026.464.23$9,144
Sep 200222313727.443.64$6,617
Aug 200231811725.963.16$8,625
Jul 20021677324.583.06$4,328
Jun 20023264823.733.34$7,896
May 20023316124.663.58$8,381
Apr 20023048623.653.51$7,492
Mar 200217010322.003.10$4,060
Feb 20023439118.222.38$6,466
Jan 200231412417.172.38$5,686
Dec 200132411416.932.36$5,755
Nov 200117111118.072.41$3,357
Oct 200133454719.782.53$7,990
Sep 200115858324.262.25$5,146
Aug 200132151324.873.05$9,550
Jul 200131337823.933.20$8,699
Jun 200148268024.563.82$14,438
May 200116427725.524.31$5,378
Apr 200116930724.685.34$5,809
Mar 200135730024.545.38$10,374
Feb 200135828927.755.77$11,601
Jan 200125719927.478.40$8,731
Dec 200042926526.889.12$13,949
Nov 200027832532.215.66$10,793
Oct 200028329631.235.15$10,361
Sep 200033529231.875.19$12,191
Aug 200030833629.644.54$10,655
Jul 200035830928.534.09$11,477
Jun 200033016129.304.40$10,377
May 200035711227.263.68$10,144
Apr 2000358024.513.12$8,775
Mar 2000300028.422.86$8,526
Feb 2000344027.622.73$9,501
Jan 2000351025.272.48$8,870
Dec 1999424024.282.42$10,295
Nov 1999311023.192.43$7,212
Oct 1999528020.982.80$11,077
Sep 19994531021.752.62$9,879
Aug 19995671619.262.88$10,966
Jul 1999468017.892.37$8,373
Jun 1999539015.942.36$8,592
May 1999512015.792.32$8,084
Apr 1999573015.102.21$8,652
Mar 1999542012.471.84$6,759
Feb 199945329.981.82$4,525
Jan 1999581810.381.90$6,046
Dec 1998516199.201.77$4,781
Nov 19985261310.892.19$5,757
Oct 19985852412.421.97$7,313
Sep 1998508012.592.08$6,396
Aug 1998576011.301.91$6,509
Jul 199852914011.742.24$6,524
Jun 199860127211.242.24$7,364
May 199855426612.622.21$7,578
Apr 199862947913.042.51$9,402
Mar 199861568712.802.31$9,459
Feb 199857766913.952.30$9,587
Jan 199864265114.702.15$10,840
Dec 199772457516.322.41$13,202
Nov 199755072318.193.09$12,237
Oct 199770289019.253.15$16,317
Sep 199759668217.742.95$12,588
Aug 199767769517.862.55$13,867
Jul 199763569617.582.25$12,727
Jun 199765568617.242.26$12,841
May 199768059518.972.31$14,273
Apr 199771859017.882.08$14,067
Mar 199764256818.951.94$13,267
Feb 199758067520.492.21$13,373
Jan 199770365323.483.54$18,818
Dec 199663871923.32$14,878
Nov 199668261721.97$14,984
Oct 199654656823.31$12,727
Sep 199663280122.22$14,043
Aug 199673286720.26$14,830
Jul 199664286419.55$12,551
Jun 199662581018.73$11,706
May 199669087119.43$13,407
Apr 199667972321.51$14,605
Mar 199675476119.38$14,613
Feb 199666887816.98$11,343
Jan 199673078117.07$12,461
Dec 199575788817.19$13,013
Nov 199571689916.00$11,456
Oct 19957471,09315.43$11,526
Sep 19957511,26016.18$12,151
Aug 19958051,37215.92$12,816
Jul 19957251,48815.24$11,049
Jun 19956301,42016.41$10,338
May 19956591,39317.56$11,572
Apr 19957631,34617.73$13,528
Mar 19958051,64316.44$13,234
Feb 199574984716.58$12,418
Jan 19958491,50115.92$13,516
Dec 19947681,39515.03$11,543
Nov 19948171,23015.90$12,990
Oct 19948151,98315.58$12,698
Sep 19948371,57915.29$12,798
Aug 19948681,89016.13$14,001
Jul 19948881,35417.56$15,593
Jun 19947761,46517.09$13,262
May 19949271,13515.88$14,721
Apr 19948481,07314.14$11,991
Mar 19949571,22012.46$11,924
Feb 19948681,22612.50$10,850
Jan 19949511,27312.66$12,040
Dec 19931,0221,26012.33$12,601
Nov 19939581,17414.49$13,881
Oct 19931,0211,32315.85$16,183
Sep 19939511,40315.03$14,294
Aug 19931,0681,30115.66$16,725
Jul 19931,0411,19415.46$16,094
Jun 19931,0501,39416.79$17,630
May 19931,0861,20317.68$19,200
Apr 19931,0741,52518.05$19,386
Mar 19931,1421,13018.14$20,716
Feb 19939991,07117.90$17,882
Jan 19931,1361,36916.93$19,232

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.

Dec 2024 — as filed, then multipliedworked
Oil                  160 bbl  × $ 68.99 =    $11,038
Casinghead gas         0 Mcf  × $  3.12 =         $0

────────────────────────────────────────────────────
Month total                                  $11,038

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. 8A/O/5985 is the state's own key, not one this site invented.