SIMMANG, DOROTHY ET AL

Operated by EVEREST RESOURCE COMPANY (P-5 252057) in the GIDDINGS (AUSTIN CHALK-3) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 16123District 03Field 34733500OilCasinghead gasSaveExport
Value, all time
$7.0 M
Jan 1993 – May 2026
Value, last 12 filed months
$111 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 5,900 leases and 6,985 wells, and the rule below applies to all of them.

Discovered
1960-10-29
as the register files it
Field class
Oil and gas
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 80 acres. The field rule took effect on 2025-09-30.

The Commission's schedule remark for this field reads: DKT OG-25-00028011: UFT FIELD, ALLOCATION FORMULA SUSPENDED

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
OilDisposition160,702 bbl$6,023,778
Casinghead gasProduction309,178 Mcf$1,006,440
Total$7,030,217

74,966 Mcf of this lease's gas, across 47 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 (2)

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 30.3033, -96.8245. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.8 miles.

30.30331, -96.82451 · 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 2 wells
With a plug date
0.0%
0 of 2 wells
Median depth
8,878 ft
2 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.
2100.0%

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 7,954 and 9,802 ft, median 8,878 ft, over the 2 wells that filed a depth.

Completions filed
Nov 1982 – Aug 1993
2 of 2 wells

2 wells

42-2873187039,802 ftAug 1993
42-2873131427,954 ftNov 1982

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 202617541298.932.87$18,495
Mar 202617341489.753.15$16,831
Feb 2026037563.503.75$1,406
Jan 202618136359.138.00$13,606
Dec 202517240556.664.41$11,533
Nov 202517037658.593.93$11,437
Oct 2025039059.383.30$1,289
Sep 202515937462.743.08$11,126
Aug 2025034563.933.01$1,040
Jul 202515435566.743.32$11,455
Jun 202517231966.483.13$12,433
May 2025031360.553.23$1,012
Apr 202517828362.363.54$12,103
Mar 20250067.704.27$0
Feb 2025181070.884.34$12,829
Jan 2025174074.324.28$12,932
Dec 202409968.993.12$309
Nov 202418120269.052.20$12,942
Oct 2024178071.372.28$12,704
Sep 20240069.612.36$0
Aug 2024178075.632.06$13,462
Jul 2024016179.932.15$346
Jun 2024357078.082.63$27,875
May 20240078.812.20$0
Apr 2024178084.451.66$15,032
Mar 2024034080.301.55$525
Feb 202417733776.091.78$14,069
Jan 202418336173.023.30$14,553
Dec 2023038071.262.61$992
Nov 202318238477.892.81$15,254
Oct 202317740485.443.09$16,370
Sep 2023040389.042.74$1,102
Aug 2023040580.522.67$1,083
Jul 202318142674.852.64$14,673
Jun 202317640568.962.26$13,052
May 202316841570.622.23$12,789
Apr 202318140178.122.24$15,037
Mar 202317941172.852.39$14,024
Feb 2023035675.112.47$878
Jan 202335140176.533.39$28,221
Dec 202217841676.415.73$15,984
Nov 2022030785.005.65$1,733
Oct 202217943787.185.86$18,168
Sep 202218340984.888.16$18,872
Aug 2022142994.529.13$4,010
Jul 2022171426101.587.54$20,583
Jun 2022180452115.097.98$24,322
May 2022356418109.378.43$42,461
Apr 20222412104.226.84$3,026
Mar 20221710108.885.08$18,618
Feb 2022182091.054.86$16,571
Jan 202218237481.844.54$16,592
Dec 2021178071.323.90$12,695
Nov 2021135377.435.24$1,926
Oct 202118134579.795.71$16,413
Sep 202118033969.865.35$14,389
Aug 202132532366.024.22$22,820
Jul 2021031970.783.98$1,270
Jun 202118529569.493.38$13,853
May 202135924963.483.02$23,541
Apr 202117815760.362.76$11,177
Mar 2021219061.302.72$639
Feb 202117711057.805.55$10,841
Jan 2021017450.412.81$489
Dec 202035217144.642.68$16,171
Nov 202017915738.772.71$7,365
Oct 202036116636.972.48$13,758
Sep 20203037.091.99$111
Aug 202017920639.982.39$7,648
Jul 2020529038.371.83$20,298
Jun 20204034.901.69$140
May 20200016.921.81$0
Apr 2020176014.751.80$2,596
Mar 20200030.341.86$0
Feb 202033938549.881.98$17,672
Jan 202018343057.252.09$11,377
Dec 2019142459.012.30$1,036
Nov 201917740855.302.75$10,910
Oct 201935642153.472.42$20,054
Sep 2019143355.052.66$1,206
Aug 201917043153.112.30$10,022
Jul 201935445456.272.46$21,036
Jun 2019141252.782.49$1,079
May 201916721958.482.74$10,366
Apr 201918142162.632.75$12,494
Mar 2019241856.803.06$1,394
Feb 201933338750.852.79$18,014
Jan 201918042946.033.23$9,670
Dec 2018143446.594.19$1,863
Nov 201818042552.934.24$11,328
Oct 201817844161.443.40$12,435
Sep 201816542959.543.11$11,157
Aug 201817938559.403.07$11,813
Jul 201835041665.142.93$24,019
Jun 201835145560.183.08$22,523
May 20187942765.382.90$6,404
Apr 201818242563.842.90$12,852
Mar 201818145561.222.79$12,349
Feb 201816441461.782.77$11,277
Jan 201834743962.874.01$23,576
Dec 201735045557.272.92$21,374
Nov 201735644755.423.12$21,123
Oct 201717642749.292.98$9,949
Sep 201749622147.523.09$24,252
Aug 201735234745.373.00$17,013
Jul 201717342043.873.09$8,886
Jun 201751441242.493.09$23,112
May 201718042645.373.26$9,557
Apr 201717839647.933.21$9,803
Mar 201717839246.772.98$9,495
Feb 2017436150.452.95$1,268
Jan 201716943749.413.42$9,844
Dec 201634650948.763.72$18,766
Nov 201617847242.492.64$8,811
Oct 2016044046.193.09$1,360
Sep 201634742841.553.10$15,745
Aug 201618641841.442.92$8,930
Jul 201617245441.622.92$8,486
Jun 20161191345.352.69$5,432
May 201647712642.521.99$20,533
Apr 201618022636.561.99$7,031
Mar 201618123333.011.79$6,393
Feb 201616727026.472.06$4,978
Jan 201635854627.352.36$11,082
Dec 201535257932.362.00$12,550
Nov 2015633738.792.17$963
Oct 201518528643.552.43$8,751
Sep 201517519842.992.76$8,069
Aug 201517012440.162.87$7,183
Jul 201517326748.152.95$9,116
Jun 201517725356.152.88$10,668
May 201517826355.212.96$10,605
Apr 2015027249.822.71$736
Mar 201517026542.892.93$8,069
Feb 201517422144.662.98$8,429
Jan 201535125243.433.10$16,025
Dec 201417228254.693.59$10,419
Nov 201416942970.464.25$13,732
Oct 201435152178.303.90$29,516
Sep 201453194886.164.05$49,586
Aug 201418563689.394.04$19,103
Jul 201417465196.564.18$19,522
Jun 201417467898.164.74$20,291
May 201417370694.734.73$19,725
Apr 201417262195.944.81$19,488
Mar 201433267295.895.06$35,234
Feb 2014159097.406.19$3,751
Jan 201434664790.404.86$34,423
Dec 201317866891.824.35$19,253
Nov 201333358988.853.74$31,789
Oct 2013165697.423.78$2,577
Sep 2013167661104.113.72$19,844
Aug 2013334587104.253.52$36,887
Jul 2013345668102.523.72$37,853
Jun 201334170594.403.93$34,963
May 201333759494.834.15$34,422
Apr 201318780593.964.28$21,018
Mar 201334778193.623.91$35,542
Feb 201317166091.233.42$17,857
Jan 201335169491.603.42$34,525
Dec 201217567486.773.42$17,490
Nov 201234089886.953.62$32,818
Oct 201232369389.383.40$31,226
Sep 20123392,20794.672.92$38,534
Aug 201234163292.662.91$33,435
Jul 201233449685.133.02$29,932
Jun 2012047679.822.52$1,199
May 201217542391.612.49$17,084
Apr 2012344527101.652.00$36,020
Mar 2012170542105.052.22$19,063
Feb 2012179526101.102.57$19,449
Jan 201217355498.092.73$18,484
Dec 201117440496.873.24$18,164
Nov 201117136595.723.31$17,577
Oct 201135246484.983.65$31,606
Sep 2011236983.623.99$1,638
Aug 201117934483.404.15$16,356
Jul 201151156394.144.52$50,649
Jun 201116945492.904.64$17,807
May 201117681298.134.40$20,848
Apr 2011500641105.964.33$55,758
Mar 201117168696.364.06$19,261
Feb 2011384285.644.18$3,776
Jan 201134965286.504.59$33,180
Dec 201017274385.734.35$17,976
Nov 20103381,37580.843.80$32,543
Oct 201034888678.103.51$30,288
Sep 2010074972.633.98$2,981
Aug 201017169773.684.42$15,680
Jul 20103131,25772.554.74$28,662
Jun 201034273070.364.91$27,648
May 20103401,29471.124.24$29,661
Apr 201050355381.694.12$43,370
Mar 201017379078.394.39$17,029
Feb 20105161,19473.585.44$44,465
Jan 20105381,39774.365.96$48,338
Dec 200952782471.445.48$42,167
Nov 200934273574.593.75$28,267
Oct 20096701,18772.544.11$53,481
Sep 20093621,02465.543.06$26,864
Aug 20095141,73267.423.22$40,228
Jul 200916759161.133.46$12,256
Jun 200916756166.163.90$13,234
May 200951655154.743.93$30,409
Apr 200934644846.773.59$17,790
Mar 200918045842.144.06$9,444
Feb 200952939332.814.63$19,177
Jan 2009101,01235.865.37$5,794
Dec 200834262637.105.98$16,430
Nov 200818945455.496.86$13,602
Oct 200817428675.246.92$15,071
Sep 20083219101.767.88$2,030
Aug 2008169199114.228.48$20,991
Jul 2008177248131.0811.39$26,026
Jun 2008366333131.3313.03$52,407
May 2008335300123.1711.57$44,734
Apr 2008334885110.3110.45$46,096
Mar 2008174318101.909.66$20,804
Feb 200835019892.538.77$34,122
Jan 20081791,04290.388.21$24,728
Dec 200733534888.337.30$32,132
Nov 200734928391.677.29$34,056
Oct 200717535082.856.92$16,921
Sep 20075211,21575.846.24$47,099
Aug 20073511,02369.066.39$30,775
Jul 200735486070.906.39$30,592
Jun 200735259762.007.55$26,330
May 200735576158.747.85$26,824
Apr 200717966259.617.81$15,837
Mar 2007273656.927.30$5,488
Feb 20075401,36955.108.22$41,002
Jan 200717980850.306.73$14,439
Dec 200617483256.656.92$15,613
Nov 20065511,55854.207.62$41,732
Oct 200637997854.906.01$26,689
Sep 20063741,03860.085.04$27,699
Aug 20065491,01368.717.34$45,157
Jul 200618767669.376.34$17,260
Jun 200617767766.286.38$16,053
May 20065181,63366.016.42$44,685
Apr 200654587864.397.36$41,555
Mar 200618377756.707.08$15,880
Feb 200617763657.597.75$15,123
Jan 20063441,35660.598.93$32,957
Dec 200569497254.9413.42$51,168
Nov 200517566454.6910.59$16,601
Oct 20055221,42958.3413.80$50,168
Sep 200551375961.4512.08$40,692
Aug 200517765161.519.80$17,265
Jul 20055211,49255.697.84$40,717
Jun 200517459452.337.38$13,490
May 20055191,33745.226.65$32,362
Apr 200534762049.207.36$21,636
Mar 20056931,18450.377.15$43,378
Feb 200517264045.226.31$11,817
Jan 20053431,20743.166.32$22,435
Dec 200468464139.866.75$31,592
Nov 200469545145.286.33$34,325
Oct 20048611,31649.706.52$51,366
Sep 200433943843.245.28$16,973
Aug 200417632542.375.55$9,261
Jul 200417343538.286.08$9,269
Jun 2004047836.106.43$3,075
May 200434640237.486.49$15,579
Apr 200434638534.475.86$14,182
Mar 2004336134.365.53$2,099
Feb 200451137432.455.51$18,643
Jan 2004031032.036.30$1,953
Dec 200333949730.266.30$13,390
Nov 200334375728.804.60$13,357
Oct 200336591728.174.76$14,647
Sep 20033731,39026.314.75$16,415
Aug 20033531,20329.765.13$16,676
Jul 200335192729.415.17$15,116
Jun 200318195328.565.98$10,871
May 200318897626.595.97$10,828
Apr 200336195226.675.41$14,776
Mar 200318094231.146.10$11,348
Feb 200336180833.487.93$18,490
Jan 200317194230.315.58$10,441
Dec 200235692226.914.85$14,055
Nov 200217989924.664.14$8,133
Oct 200255093926.464.23$18,524
Sep 200218491227.443.64$8,364
Aug 200235295225.963.16$12,150
Jul 20023631,53224.583.06$13,613
Jun 200254394123.733.34$16,027
May 200217998124.663.58$7,930
Apr 200272687823.653.51$20,254
Mar 200221,44022.003.10$4,512
Feb 200278371818.222.38$15,972
Jan 200238973717.172.38$8,430
Dec 20013881,27116.932.36$9,574
Nov 200159076418.072.41$12,499
Oct 200120376719.782.53$5,955
Sep 200155458524.262.25$14,757
Aug 20013831,49924.873.05$14,102
Jul 200193877423.933.20$24,921
Jun 200137675524.563.82$12,122
May 2001062325.524.31$2,683
Apr 20015641,34124.685.34$21,074
Mar 200156276324.545.38$17,894
Feb 200137877227.755.77$14,942
Jan 200156775327.478.40$21,900
Dec 200037969526.889.12$16,528
Nov 20003761,54532.215.66$20,853
Oct 200037372931.235.15$15,400
Sep 200092159431.875.19$32,433
Aug 200037661329.644.54$13,928
Jul 20005661,05428.534.09$20,459
Jun 20005631,25329.304.40$22,006
May 20003851,02627.263.68$14,271
Apr 20009392,48724.513.12$30,764
Mar 200057667428.422.86$18,297
Feb 200037771227.622.73$12,354
Jan 20005781,24725.272.48$17,699
Dec 19997551,35724.282.42$21,620
Nov 19997371,65523.192.43$21,119
Oct 19993601,45020.982.80$11,618
Sep 19991,0761,58721.752.62$27,559
Aug 19991,0661,43019.262.88$24,643
Jul 19995551,15017.892.37$12,657
Jun 19991871,04215.942.36$5,442
May 19993711,02015.792.32$8,226
Apr 199921,07015.102.21$2,393
Mar 19991871,06612.471.84$4,292
Feb 19991779859.981.82$3,557
Jan 199931,07410.381.90$2,072
Dec 199831,0149.201.77$1,826
Nov 19983701,04410.892.19$6,311
Oct 19983701,08612.421.97$6,734
Sep 19985521,09912.592.08$9,238
Aug 1998161,15311.301.91$2,380
Jul 19985561,21611.742.24$9,248
Jun 199861,20011.242.24$2,752
May 19985141,29812.622.21$9,351
Apr 19983681,24313.042.51$7,913
Mar 19983871,30112.802.31$7,958
Feb 19983721,22613.952.30$8,008
Jan 19985681,45014.702.15$11,474
Dec 19973701,48816.322.41$9,626
Nov 19975481,48918.193.09$14,567
Oct 19977571,50819.253.15$19,322
Sep 19975681,70417.742.95$15,111
Aug 19977531,77117.862.55$17,973
Jul 19971,1241,84617.582.25$23,908
Jun 19977481,87617.242.26$17,130
May 19979262,11018.972.31$22,437
Apr 19971,3132,05017.882.08$27,746
Mar 19979502,04818.951.94$21,974
Feb 19979501,70220.492.21$23,220
Jan 19971,3241,82323.483.54$37,540
Dec 19961,1461,90723.32$26,725
Nov 19961,1471,82721.97$25,200
Oct 19961,4941,83023.31$34,825
Sep 19961,4572,01322.22$32,375
Aug 19961,4652,95120.26$29,681
Jul 19961,6692,31219.55$32,629
Jun 19961,4771,58518.73$27,664
May 19961,1271,80719.43$21,898
Apr 19961,2921,68721.51$27,791
Mar 19961,2971,30619.38$25,136
Feb 19961,1011,71716.98$18,695
Jan 19961,1161,53917.07$19,050
Dec 19951,2991,41017.19$22,330
Nov 19951,655016.00$26,480
Oct 19951,6031,82815.43$24,734
Sep 19953661,72616.18$5,922
Aug 19955111,45715.92$8,135
Jul 19955271,10315.24$8,031
Jun 199570689216.41$11,585
May 199537598317.56$6,585
Apr 199555547017.73$9,840
Mar 19951,09094716.44$17,920
Feb 199571965216.58$11,921
Jan 19951,06586415.92$16,955
Dec 199472682815.03$10,912
Nov 199491194215.90$14,485
Oct 19949041,26815.58$14,084
Sep 19941,0841,12415.29$16,574
Aug 19941,41778016.13$22,856
Jul 19941,2611,85417.56$22,143
Jun 19941,7231,94017.09$29,446
May 19942,1152,26915.88$33,586
Apr 19942,3182,61414.14$32,777
Mar 19941,9662,35812.46$24,496
Feb 19942,1642,07912.50$27,050
Jan 19942,3342,18412.66$29,548
Dec 19932,6841,27412.33$33,094
Nov 19931,4461,09614.49$20,953
Oct 19931,3321,50815.85$21,112
Sep 19931,7211,60515.03$25,867
Aug 19931,7041,73815.66$26,685
Jul 19937421,67215.46$11,471
Jun 19937311,68316.79$12,273
May 19937431,69317.68$13,136
Apr 19935411,80618.05$9,765
Mar 19935601,93418.14$10,158
Feb 19935491,81517.90$9,827
Jan 19935622,08916.93$9,515

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                  175 bbl  × $ 98.93 =    $17,313
Casinghead gas       412 Mcf  × $  2.87 =     $1,182

────────────────────────────────────────────────────
Month total                                  $18,495

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/16123 is the state's own key, not one this site invented.