WALSH-ENGLEMANN UNIT

Operated by KOUATLI, AIMAN M. (P-5 476360) in the CALDWELL (AUSTIN CHALK) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 13091District 03Field 14710500NGPA filingOilCasinghead gasSaveExport
Value, all time
$2.9 M
Jan 1993 – May 2026
Value, last 12 filed months
$5 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 256 leases and 330 wells, and the rule below applies to all of them.

Discovered
1978-06-29
as the register files it
Field class
Oil and 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 80 acres. The field rule took effect on 1991-11-25.

The Commission's schedule remark for this field reads: PER DOCKET 3-97101 EFF 11-25-91, PERM RULES. 80 ACRE OPT/3250 DIAG

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
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
OilDisposition48,473 bbl$2,062,331
Casinghead gasProduction201,370 Mcf$855,083
Total$2,917,414

41,362 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 (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 30.5452, -96.5754. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.0 miles.

30.54525, -96.57543 · 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
8,680 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 8,680 ft.

Completions filed
Jun 1980
1 of 1 wells

1 well

42-0513068318,680 ftJun 1980

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 2026015998.932.87$456
Mar 2026010989.753.15$343
Feb 202608663.503.75$323
Jan 202605559.138.00$440
Dec 2025010856.664.41$477
Nov 202509358.593.93$365
Oct 2025010859.383.30$357
Sep 2025011762.743.08$360
Aug 2025018363.933.01$552
Jul 2025016866.743.32$557
Jun 2025019866.483.13$619
May 202508660.553.23$278
Apr 2025017462.363.54$617
Mar 202517720167.704.27$12,841
Feb 2025015370.884.34$664
Jan 2025019774.324.28$843
Dec 2024023168.993.12$721
Nov 2024016069.052.20$352
Oct 2024012571.372.28$285
Sep 2024016469.612.36$388
Aug 2024018475.632.06$380
Jul 202406879.932.15$146
Jun 2024016378.082.63$429
May 202418717178.812.20$15,113
Apr 2024028584.451.66$473
Mar 2024037180.301.55$573
Feb 20240076.091.78$0
Jan 2024012973.023.30$425
Dec 2023025271.262.61$658
Nov 2023017177.892.81$480
Oct 2023026185.443.09$806
Sep 2023022989.042.74$626
Aug 2023022280.522.67$593
Jul 2023016574.852.64$436
Jun 2023021668.962.26$488
May 2023014370.622.23$319
Apr 2023020478.122.24$457
Mar 20230072.852.39$0
Feb 20231897975.112.47$14,391
Jan 2023012776.533.39$430
Dec 2022013776.415.73$785
Nov 2022022185.005.65$1,248
Oct 2022018787.185.86$1,097
Sep 202203284.888.16$261
Aug 2022014294.529.13$1,296
Jul 20220111101.587.54$837
Jun 20220238115.097.98$1,899
May 20220185109.378.43$1,560
Apr 2022050104.226.84$342
Mar 20220229108.885.08$1,163
Feb 2022011591.054.86$559
Jan 20220081.844.54$0
Dec 20210071.323.90$0
Nov 20211896777.435.24$14,985
Oct 2021015979.795.71$909
Sep 202118633269.865.35$14,770
Aug 2021016166.024.22$680
Jul 2021015070.783.98$597
Jun 2021023769.493.38$801
May 2021013263.483.02$398
Apr 20211805560.362.76$11,017
Mar 202101161.302.72$30
Feb 20210057.805.55$0
Jan 2021013250.412.81$371
Dec 2020180044.642.68$8,035
Nov 20201872538.772.71$7,318
Oct 20200036.972.48$0
Sep 202004037.091.99$80
Aug 202004339.982.39$103
Jul 202005938.371.83$108
Jun 202001534.901.69$25
May 2020011216.921.81$203
Apr 2020022714.751.80$410
Mar 2020022730.341.86$421
Feb 2020030349.881.98$600
Jan 202016621757.252.09$9,958
Dec 2019028259.012.30$650
Nov 201917927455.302.75$10,652
Oct 2019016453.472.42$397
Sep 201915717955.052.66$9,119
Aug 2019033453.112.30$770
Jul 201917735156.272.46$10,823
Jun 2019026852.782.49$668
May 2019025158.482.74$688
Apr 2019035562.632.75$977
Mar 201934225656.803.06$20,210
Feb 2019027050.852.79$754
Jan 2019030446.033.23$981
Dec 2018021446.594.19$896
Nov 201817211852.934.24$9,604
Oct 20180761.443.40$24
Sep 201807259.543.11$224
Aug 201816511659.403.07$10,157
Jul 2018011565.142.93$337
Jun 201806460.183.08$197
May 201816721165.382.90$11,531
Apr 2018029163.842.90$844
Mar 2018031261.222.79$869
Feb 201816726661.782.77$11,053
Jan 2018015362.874.01$613
Dec 2017027657.272.92$806
Nov 2017030055.423.12$936
Oct 201716738149.292.98$9,368
Sep 20171896847.523.09$9,191
Aug 2017010745.373.00$321
Jul 2017019743.873.09$608
Jun 2017026842.493.09$827
May 2017031045.373.26$1,012
Apr 2017039047.933.21$1,253
Mar 201716542846.772.98$8,994
Feb 2017025250.452.95$744
Jan 2017027249.413.42$930
Dec 201633533648.763.72$17,585
Nov 2016029642.492.64$783
Oct 2016038046.193.09$1,174
Sep 201617139441.553.10$8,327
Aug 2016033341.442.92$974
Jul 2016039241.622.92$1,146
Jun 2016036545.352.69$980
May 2016040742.521.99$810
Apr 201619041936.561.99$7,781
Mar 2016034233.011.79$614
Feb 2016036926.472.06$761
Jan 201614540027.352.36$4,911
Dec 2015041932.362.00$839
Nov 2015049338.792.17$1,068
Oct 201518445343.552.43$9,112
Sep 2015041442.992.76$1,142
Aug 2015042240.162.87$1,212
Jul 201515441248.152.95$8,628
Jun 2015040556.152.88$1,168
May 20150055.212.96$0
Apr 201517739049.822.71$9,874
Mar 2015039542.892.93$1,159
Feb 2015036244.662.98$1,077
Jan 20158238943.433.10$4,767
Dec 201416738554.693.59$10,516
Nov 2014042270.464.25$1,794
Oct 20149242278.303.90$8,850
Sep 2014040586.164.05$1,638
Aug 201416945789.394.04$16,951
Jul 20144543196.564.18$6,147
Jun 201418045098.164.74$19,800
May 2014047694.734.73$2,250
Apr 201417342195.944.81$18,622
Mar 201417843395.895.06$19,258
Feb 2014023197.406.19$1,430
Jan 2014040490.404.86$1,964
Dec 201317344491.824.35$17,818
Nov 2013040488.853.74$1,510
Oct 2013047497.423.78$1,791
Sep 20130416104.113.72$1,547
Aug 20130460104.253.52$1,620
Jul 2013169464102.523.72$19,051
Jun 2013045194.403.93$1,774
May 2013048694.834.15$2,016
Apr 201318051193.964.28$19,101
Mar 2013053393.623.91$2,086
Feb 2013047691.233.42$1,628
Jan 2013055891.603.42$1,908
Dec 2012051086.773.42$1,744
Nov 201217351086.953.62$16,891
Oct 2012051789.383.40$1,758
Sep 2012051594.672.92$1,503
Aug 201217154892.662.91$17,439
Jul 2012054785.133.02$1,652
Jun 2012054679.822.52$1,375
May 201217455491.612.49$17,319
Apr 2012178570101.652.00$19,232
Mar 20120505105.052.22$1,122
Feb 20120307101.102.57$789
Jan 2012045098.092.73$1,230
Dec 2011048996.873.24$1,584
Nov 201117256295.723.31$18,325
Oct 2011053884.983.65$1,963
Sep 201117252083.623.99$16,455
Aug 2011052083.404.15$2,158
Jul 201117345694.144.52$18,346
Jun 2011049892.904.64$2,311
May 2011038998.134.40$1,713
Apr 2011175582105.964.33$21,065
Mar 201118063096.364.06$19,901
Feb 20110085.644.18$0
Jan 2011054586.504.59$2,501
Dec 201017862585.734.35$17,977
Nov 2010061480.843.80$2,330
Oct 201017864678.103.51$16,169
Sep 201017266472.633.98$15,135
Aug 2010069973.684.42$3,089
Jul 201017259372.554.74$15,287
Jun 201017267670.364.91$15,421
May 2010072671.124.24$3,075
Apr 201017675681.694.12$17,494
Mar 201017876878.394.39$17,324
Feb 201019270373.585.44$17,953
Jan 201019378874.365.96$19,051
Dec 2009080671.445.48$4,420
Nov 200918678774.593.75$16,826
Oct 200918681672.544.11$16,846
Sep 200918881265.543.06$14,810
Aug 200919079567.423.22$15,369
Jul 2009074161.133.46$2,567
Jun 200919881066.163.90$16,255
May 2009086654.743.93$3,400
Apr 200920079246.773.59$12,195
Mar 200919384542.144.06$11,563
Feb 2009079432.814.63$3,679
Jan 200919863835.865.37$10,527
Dec 200820288237.105.98$12,766
Nov 200819395855.496.86$17,282
Oct 20081981,06675.246.92$22,276
Sep 2008200814101.767.88$26,764
Aug 2008192866114.228.48$29,277
Jul 20082101,067131.0811.39$39,679
Jun 20080576131.3313.03$7,507
May 2008198986123.1711.57$35,800
Apr 20082001,009110.3110.45$32,611
Mar 20082001,012101.909.66$30,160
Feb 200801,01092.538.77$8,858
Jan 20081851,06390.388.21$25,443
Dec 20073851,25988.337.30$43,200
Nov 20071951,18891.677.29$26,538
Oct 20071971,09982.856.92$23,929
Sep 20071931,12275.846.24$21,643
Aug 20073901,31669.066.39$35,340
Jul 2007081270.906.39$5,187
Jun 20071881,13462.007.55$20,216
May 20071951,12358.747.85$20,266
Apr 20071951,21459.617.81$21,099
Mar 20071941,28056.927.30$20,389
Feb 20073921,21555.108.22$31,582
Jan 20071921,09450.306.73$17,017
Dec 200601,14756.656.92$7,935
Nov 20063901,25354.207.62$30,683
Oct 20061921,46554.906.01$19,351
Sep 20065571,66660.085.04$41,857
Aug 2006099468.717.34$7,296
Jul 20061901,57669.376.34$23,176
Jun 20063601,64366.286.38$34,350
May 20063871,45766.016.42$34,907
Apr 200601,37364.397.36$10,106
Mar 20065721,79356.707.08$45,132
Feb 20063751,90757.597.75$36,378
Jan 20063701,93660.598.93$39,713
Dec 20055922,39154.9413.42$64,601
Nov 20055622,73054.6910.59$59,642
Oct 20059352,97158.3413.80$95,535
Sep 20057421,88761.4512.08$68,389
Aug 20057382,53261.519.80$70,200
Jul 200537266255.697.84$25,909
Jun 20050052.337.38$0
May 20050045.226.65$0
Apr 200503749.207.36$272
Mar 200505850.377.15$415
Feb 20050045.226.31$0
Jan 20050443.166.32$25
Dec 200401539.866.75$101
Nov 20040845.286.33$51
Oct 200405649.706.52$365
Sep 2004011243.245.28$592
Aug 2004018142.375.55$1,005
Jul 20046327238.286.08$4,067
Jun 2004031736.106.43$2,039
May 2004134537.486.49$2,278
Apr 200417338434.475.86$8,213
Mar 200418645134.365.53$8,885
Feb 2004042532.455.51$2,342
Jan 2004049332.036.30$3,106
Dec 200318848030.266.30$8,714
Nov 2003039428.804.60$1,810
Oct 200317720128.174.76$5,943
Sep 2003016726.314.75$793
Aug 200315410929.765.13$5,142
Jul 200318725829.415.17$6,834
Jun 2003026728.565.98$1,597
May 200317929126.595.97$6,498
Apr 2003029526.675.41$1,595
Mar 200317526731.146.10$7,077
Feb 2003017533.487.93$1,387
Jan 200318020830.315.58$6,617
Dec 200216422326.914.85$5,496
Nov 2002023724.664.14$980
Oct 200217926926.464.23$5,874
Sep 2002022827.443.64$829
Aug 200217624125.963.16$5,332
Jul 2002023224.583.06$710
Jun 200217730923.733.34$5,232
May 2002026424.663.58$946
Apr 200216529923.653.51$4,952
Mar 2002036022.003.10$1,117
Feb 200218130218.222.38$4,015
Jan 200218133017.172.38$3,892
Dec 2001029616.932.36$700
Nov 200116830718.072.41$3,774
Oct 200114730719.782.53$3,684
Sep 2001034524.262.25$777
Aug 200116447824.873.05$5,538
Jul 200115848223.933.20$5,322
Jun 2001044024.563.82$1,683
May 200118133925.524.31$6,079
Apr 200116834524.685.34$5,987
Mar 2001031424.545.38$1,688
Feb 200118926127.755.77$6,750
Jan 200118953227.478.40$9,660
Dec 2000051726.889.12$4,716
Nov 200013261232.215.66$7,714
Oct 200017923331.235.15$6,789
Sep 200016924031.875.19$6,631
Aug 200017131029.644.54$6,476
Jul 2000032528.534.09$1,329
Jun 200016821629.304.40$5,872
May 200016159927.263.68$6,593
Apr 200019045624.513.12$6,078
Mar 2000057828.422.86$1,653
Feb 200016562527.622.73$6,261
Jan 200019655825.272.48$6,337
Dec 199918641624.282.42$5,524
Nov 1999036323.192.43$884
Oct 199919056520.982.80$5,570
Sep 199916347621.752.62$4,792
Aug 199918351819.262.88$5,014
Jul 199917856917.892.37$4,534
Jun 199915765215.942.36$4,043
May 199918854515.792.32$4,233
Apr 199932658315.102.21$6,210
Mar 199935738112.471.84$5,152
Feb 19991784609.981.82$2,613
Jan 199919351310.381.90$2,978
Dec 19981805279.201.77$2,591
Nov 1998048910.892.19$1,069
Oct 1998046412.421.97$914
Sep 199834449312.592.08$5,358
Aug 199817638011.301.91$2,714
Jul 1998038411.742.24$859
Jun 1998026811.242.24$600
May 199833443012.622.21$5,164
Apr 199817426213.042.51$2,925
Mar 1998010412.802.31$240
Feb 199818123713.952.30$3,070
Jan 1998118714.702.15$418
Dec 199718114716.322.41$3,308
Nov 1997017118.193.09$528
Oct 199718219.253.15$278
Sep 19971117.742.95$21
Aug 19970017.862.55$0
Jul 19971815817.582.25$3,312
Jun 1997057817.242.26$1,305
May 199732567318.972.31$7,719
Apr 19973831,07417.882.08$9,085
Mar 199731083218.951.94$7,488
Feb 199718699720.492.21$6,010
Jan 199729599123.483.54$10,434
Dec 199619370123.32$4,501
Nov 199634471921.97$7,558
Oct 199618086723.31$4,196
Sep 199629169322.22$6,466
Aug 199618662720.26$3,768
Jul 199641764419.55$8,152
Jun 199617480018.73$3,259
May 199634965019.43$6,781
Apr 199618281921.51$3,915
Mar 19963521,13119.38$6,822
Feb 199652897516.98$8,965
Jan 199637986017.07$6,470
Dec 1995073917.19$0
Nov 19953571,17516.00$5,712
Oct 19951811,05115.43$2,793
Sep 19953571,17216.18$5,776
Aug 19953521,14815.92$5,604
Jul 19951761,03515.24$2,682
Jun 19953261,12516.41$5,350
May 19953311,35917.56$5,812
Apr 19953501,37817.73$6,206
Mar 19953321,42416.44$5,458
Feb 19953591,29916.58$5,952
Jan 19953811,61715.92$6,066
Dec 19943511,54415.03$5,276
Nov 19945302,01115.90$8,427
Oct 199419065815.58$2,960
Sep 19945091,18115.29$7,783
Aug 199434965016.13$5,629
Jul 199419577517.56$3,424
Jun 199419567517.09$3,333
May 199418563715.88$2,938
Apr 199435656414.14$5,034
Mar 199435270012.46$4,386
Feb 199436355312.50$4,538
Jan 199452051912.66$6,583
Dec 19935853312.33$715
Nov 199317750114.49$2,565
Oct 199337455015.85$5,928
Sep 199316958215.03$2,540
Aug 199317661815.66$2,756
Jul 199319057115.46$2,937
Jun 199318655716.79$3,123
May 199335354517.68$6,241
Apr 199316852318.05$3,032
Mar 199336758318.14$6,657
Feb 199316362417.90$2,918
Jan 199318970016.93$3,200

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.

Apr 2026 — as filed, then multipliedworked
Oil                    0 bbl  × $ 98.93 =         $0
Casinghead gas       159 Mcf  × $  2.87 =       $456

────────────────────────────────────────────────────
Month total                                     $456

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. 03/O/13091 is the state's own key, not one this site invented.