THOMAS UNIT

Operated by SCHALK OIL COMPANY, INC. (P-5 750400) in the SOLDIER MOUND (STOCKWETHER) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 68520District 8AField 84521375OilCasinghead gasSave
Value, all time
$18.6 M
Jan 2003 – May 2026
Value, last 12 filed months
$147 k
at the published price for each month
Months reported
281
no gaps in the span
Streams
2
oil, casinghead gas

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
OilDisposition297,759 bbl$18,596,311
Casinghead gasProduction28 Mcf$167
Total$18,596,478

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 33.5213, -100.8429. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.0 miles.

33.52128, -100.84291 · 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
5,104 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 5,104 ft.

Completions filed
Jan 2003
1 of 1 wells

1 well

42-1253082615,104 ftJan 2003

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 (281)

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

281 months

May 20261320106.413.05$14,046
Apr 2026238098.932.87$23,545
Mar 2026187089.753.15$16,783
Feb 2026163063.503.75$10,351
Jan 20260059.138.00$0
Dec 2025166056.664.41$9,406
Nov 2025167058.593.93$9,785
Oct 2025169059.383.30$10,035
Sep 2025172062.743.08$10,791
Aug 2025319063.933.01$20,394
Jul 2025173066.743.32$11,546
Jun 2025153066.483.13$10,171
May 2025166060.553.23$10,051
Apr 2025174062.363.54$10,851
Mar 2025159067.704.27$10,764
Feb 2025160070.884.34$11,341
Jan 2025174074.324.28$12,932
Dec 2024161068.993.12$11,107
Nov 2024179069.052.20$12,360
Oct 2024164071.372.28$11,705
Sep 2024173069.612.36$12,043
Aug 2024178075.632.06$13,462
Jul 2024333079.932.15$26,617
Jun 2024139078.082.63$10,853
May 2024165078.812.20$13,004
Apr 2024175084.451.66$14,779
Mar 2024165080.301.55$13,250
Feb 2024170076.091.78$12,935
Jan 2024177073.023.30$12,925
Dec 2023348071.262.61$24,798
Nov 20230077.892.81$0
Oct 2023336085.443.09$28,708
Sep 2023165089.042.74$14,692
Aug 2023158080.522.67$12,722
Jul 2023168074.852.64$12,575
Jun 2023166068.962.26$11,447
May 2023174070.622.23$12,288
Apr 2023172078.122.24$13,437
Mar 2023344072.852.39$25,060
Feb 20230075.112.47$0
Jan 2023182076.533.39$13,928
Dec 2022177076.415.73$13,525
Nov 2022356085.005.65$30,260
Oct 2022182087.185.86$15,867
Sep 2022328084.888.16$27,841
Aug 2022174094.529.13$16,446
Jul 20221470101.587.54$14,932
Jun 20221590115.097.98$18,299
May 20223420109.378.43$37,405
Apr 20221610104.226.84$16,779
Mar 20223400108.885.08$37,019
Feb 2022166091.054.86$15,114
Jan 2022328081.844.54$26,844
Dec 2021171071.323.90$12,196
Nov 2021162077.435.24$12,544
Oct 2021319079.795.71$25,453
Sep 2021326069.865.35$22,774
Aug 2021170066.024.22$11,223
Jul 2021333070.783.98$23,570
Jun 2021168069.493.38$11,674
May 2021325063.483.02$20,631
Apr 2021328060.362.76$19,798
Mar 2021324061.302.72$19,861
Feb 2021308057.805.55$17,802
Jan 2021184050.412.81$9,275
Dec 2020468044.642.68$20,892
Nov 2020300038.772.71$11,631
Oct 2020126036.972.48$4,658
Sep 2020164037.091.99$6,083
Aug 2020316039.982.39$12,634
Jul 2020319038.371.83$12,240
Jun 2020472034.901.69$16,473
May 2020151016.921.81$2,555
Apr 2020333014.751.80$4,912
Mar 2020145030.341.86$4,399
Feb 2020331049.881.98$16,510
Jan 2020320057.252.09$18,320
Dec 2019346059.012.30$20,417
Nov 2019331055.302.75$18,304
Oct 2019327053.472.42$17,485
Sep 2019340055.052.66$18,717
Aug 2019159053.112.30$8,444
Jul 2019456056.272.46$25,659
Jun 2019345052.782.49$18,209
May 2019364058.482.74$21,287
Apr 2019487062.632.75$30,501
Mar 2019314056.803.06$17,835
Feb 2019320050.852.79$16,272
Jan 2019509046.033.23$23,429
Dec 2018488046.594.19$22,736
Nov 2018323052.934.24$17,096
Oct 2018333061.443.40$20,460
Sep 2018342059.543.11$20,363
Aug 2018335059.403.07$19,899
Jul 2018534065.142.93$34,785
Jun 2018348060.183.08$20,943
May 2018507065.382.90$33,148
Apr 2018343063.842.90$21,897
Mar 2018529061.222.79$32,385
Feb 2018334061.782.77$20,635
Jan 2018685062.874.01$43,066
Dec 2017524057.272.92$30,009
Nov 2017336055.423.12$18,621
Oct 2017651049.292.98$32,088
Sep 2017657047.523.09$31,221
Aug 2017346045.373.00$15,698
Jul 2017337043.873.09$14,784
Jun 2017159042.493.09$6,756
May 2017171045.373.26$7,758
Apr 2017160047.933.21$7,669
Mar 2017172046.772.98$8,044
Feb 2017304050.452.95$15,337
Jan 2017162049.413.42$8,004
Dec 2016169048.763.72$8,240
Nov 2016344042.492.64$14,617
Oct 2016164046.193.09$7,575
Sep 2016169041.553.10$7,022
Aug 2016330041.442.92$13,675
Jul 2016165041.622.92$6,867
Jun 2016339045.352.69$15,374
May 2016171042.521.99$7,271
Apr 2016173036.561.99$6,325
Mar 2016342033.011.79$11,289
Feb 2016173026.472.06$4,579
Jan 2016351027.352.36$9,600
Dec 2015185032.362.00$5,987
Nov 2015340038.792.17$13,189
Oct 2015175043.552.43$7,621
Sep 2015328042.992.76$14,101
Aug 2015337040.162.87$13,534
Jul 2015174048.152.95$8,378
Jun 2015342056.152.88$19,203
May 2015351055.212.96$19,379
Apr 2015179049.822.71$8,918
Mar 2015543042.892.93$23,289
Feb 2015180044.662.98$8,039
Jan 2015362043.433.10$15,722
Dec 2014358054.693.59$19,579
Nov 2014365070.464.25$25,718
Oct 2014348078.303.90$27,248
Sep 2014357086.164.05$30,759
Aug 2014352089.394.04$31,465
Jul 2014535096.564.18$51,660
Jun 2014344098.164.74$33,767
May 2014356094.734.73$33,724
Apr 2014368095.944.81$35,306
Mar 2014366095.895.06$35,096
Feb 2014539097.406.19$52,499
Jan 2014557090.404.86$50,353
Dec 2013167091.824.35$15,334
Nov 2013266088.853.74$23,634
Oct 2013476097.423.78$46,372
Sep 20134670104.113.72$48,619
Aug 20137900104.253.52$82,358
Jul 20131530102.523.72$15,686
Jun 2013551094.403.93$52,014
May 2013529094.834.15$50,165
Apr 2013552093.964.28$51,866
Mar 2013733093.623.91$68,623
Feb 2013358091.233.42$32,660
Jan 2013561091.603.42$51,388
Dec 2012924086.773.42$80,175
Nov 2012557086.953.62$48,431
Oct 2012560089.383.40$50,053
Sep 2012929094.672.92$87,948
Aug 2012555092.662.91$51,426
Jul 2012727085.133.02$61,890
Jun 2012733079.822.52$58,508
May 20121,117091.612.49$102,328
Apr 20127410101.652.00$75,323
Mar 20129710105.052.22$102,004
Feb 20129190101.102.57$92,911
Jan 2012932098.092.73$91,420
Dec 2011931096.873.24$90,186
Nov 2011926095.723.31$88,637
Oct 20111,098084.983.65$93,308
Sep 20111,110083.623.99$92,818
Aug 20111,280083.404.15$106,752
Jul 20111,091094.144.52$102,707
Jun 20111,261092.904.64$117,147
May 20111,281098.134.40$125,705
Apr 20111,6590105.964.33$175,788
Mar 20111,470096.364.06$141,649
Feb 20111,490085.644.18$127,604
Jan 20111,661086.504.59$143,677
Dec 20102,044085.734.35$175,232
Nov 20101,852080.843.80$149,716
Oct 20101,856078.103.51$144,954
Sep 20102,031072.633.98$147,512
Aug 20102,028073.684.42$149,423
Jul 20102,199072.554.74$159,537
Jun 20102,206070.364.91$155,214
May 20102,025071.124.24$144,018
Apr 20102,018081.694.12$164,850
Mar 20102,199078.394.39$172,380
Feb 20101,838073.585.44$135,240
Jan 20102,011074.365.96$149,538
Dec 20092,393071.445.48$170,956
Nov 20092,197074.593.75$163,874
Oct 20092,376072.544.11$172,355
Sep 20092,219065.543.06$145,433
Aug 20092,007067.423.22$135,312
Jul 20092,019061.133.46$123,421
Jun 20092,351066.163.90$155,542
May 20092,396054.743.93$131,157
Apr 20092,183046.773.59$102,099
Mar 20092,176042.144.06$91,697
Feb 20091,972032.814.63$64,701
Jan 20092,413035.865.37$86,530
Dec 20082,224037.105.98$82,510
Nov 20082,018055.496.86$111,979
Oct 20082,194075.246.92$165,077
Sep 20082,3780101.767.88$241,985
Aug 20082,0070114.228.48$229,240
Jul 20082,1990131.0811.39$288,245
Jun 20082,3750131.3313.03$311,909
May 20082,2220123.1711.57$273,684
Apr 20082,3830110.3110.45$262,869
Mar 20081,8130101.909.66$184,745
Feb 20082,178092.538.77$201,530
Jan 20082,170090.388.21$196,125
Dec 20072,174088.337.30$192,029
Nov 20072,365091.677.29$216,800
Oct 20072,007082.856.92$166,280
Sep 20072,013075.846.24$152,666
Aug 20072,281069.066.39$157,526
Jul 20071,627070.906.39$115,354
Jun 20071,618062.007.55$100,316
May 20071,816058.747.85$106,672
Apr 20072,186059.617.81$130,307
Mar 20072,097056.927.30$119,361
Feb 20072,307055.108.22$127,116
Jan 20071,717050.306.73$86,365
Dec 20062,128056.656.92$120,551
Nov 20062,141054.207.62$116,042
Oct 20062,553054.906.01$140,160
Sep 20062,303060.085.04$138,364
Aug 20062,516068.717.34$172,874
Jul 20062,351069.376.34$163,089
Jun 20062,307066.286.38$152,908
May 20062,675066.016.42$176,577
Apr 20062,002064.397.36$128,909
Mar 20061,722056.707.08$97,637
Feb 20062,310057.597.75$133,033
Jan 20062,174060.598.93$131,723
Dec 20051,990054.9413.42$109,331
Nov 20052,168054.6910.59$118,568
Oct 20052,423058.3413.80$141,358
Sep 20052,665061.4512.08$163,764
Aug 20052,941061.519.80$180,901
Jul 20052,782055.697.84$154,930
Jun 20052,522152.337.38$131,984
May 20052,730145.226.65$123,457
Apr 20052,889049.207.36$142,139
Mar 20052,716050.377.15$136,805
Feb 20052,754145.226.31$124,542
Jan 20052,897143.166.32$125,041
Dec 20042,693139.866.75$107,350
Nov 20042,919145.286.33$132,179
Oct 20042,728149.706.52$135,588
Sep 20042,576143.245.28$111,392
Aug 20042,708142.375.55$114,744
Jul 20042,590138.286.08$99,151
Jun 20042,241136.106.43$80,907
May 20042,776137.486.49$104,051
Apr 20042,546134.475.86$87,766
Mar 20042,289134.365.53$78,656
Feb 20042,745132.455.51$89,081
Jan 20042,397132.036.30$76,782
Dec 20032,551130.266.30$77,200
Nov 20032,450128.804.60$70,565
Oct 20032,623128.174.76$73,895
Sep 20032,648126.314.75$69,674
Aug 20032,987129.765.13$88,898
Jul 20033,191129.415.17$93,852
Jun 20032,856128.565.98$81,573
May 20033,198126.595.97$85,041
Apr 20032,790126.675.41$74,415
Mar 20033,613131.146.10$112,515
Feb 20033,097133.487.93$103,695
Jan 20032,688130.315.58$81,479

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
Oil                  132 bbl  × $106.41 =    $14,046
Casinghead gas         0 Mcf  × $  3.05 =         $0

────────────────────────────────────────────────────
Month total                                  $14,046

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/68520 is the state's own key, not one this site invented.