ROBINSON

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

Oil lease lease 68589District 8AField 84521380OilCasinghead gasSaveExport
Value, all time
$15.1 M
Jun 2003 – May 2026
Value, last 12 filed months
$54 k
at the published price for each month
Months reported
276
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 22 leases and 29 wells, and the rule below applies to all of them.

Discovered
2001-07-07
as the register files it
Field class
Oil
the register's own label
Between wells
no field rule filed
From a lease line
no field rule filed

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
OilDisposition227,162 bbl$15,068,608
Casinghead gasProduction22 Mcf$130
Total$15,068,738

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 33.5312, -100.8459. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.0 miles.

33.53116, -100.84594 · 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
5,150 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 5,150 ft.

Completions filed
Jun 2003
1 of 1 wells

1 well

42-1253086925,150 ftJun 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 (276)

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

276 months

May 202600106.413.05$0
Apr 20260098.932.87$0
Mar 202671089.753.15$6,372
Feb 2026135063.503.75$8,573
Jan 20260059.138.00$0
Dec 202594056.664.41$5,326
Nov 2025170058.593.93$9,960
Oct 20250059.383.30$0
Sep 20250062.743.08$0
Aug 20250063.933.01$0
Jul 2025177066.743.32$11,813
Jun 2025179066.483.13$11,900
May 20250060.553.23$0
Apr 2025180062.363.54$11,225
Mar 2025169067.704.27$11,441
Feb 20250070.884.34$0
Jan 2025147074.324.28$10,925
Dec 2024161068.993.12$11,107
Nov 2024179069.052.20$12,360
Oct 2024178071.372.28$12,704
Sep 2024182069.612.36$12,669
Aug 2024172075.632.06$13,008
Jul 2024179079.932.15$14,307
Jun 20240078.082.63$0
May 2024158078.812.20$12,452
Apr 2024144084.451.66$12,161
Mar 2024175080.301.55$14,053
Feb 2024180076.091.78$13,696
Jan 2024332073.023.30$24,243
Dec 2023162071.262.61$11,544
Nov 2023174077.892.81$13,553
Oct 2023180085.443.09$15,379
Sep 2023358089.042.74$31,876
Aug 2023165080.522.67$13,286
Jul 2023170074.852.64$12,725
Jun 2023331068.962.26$22,826
May 2023179070.622.23$12,641
Apr 2023180078.122.24$14,062
Mar 2023535072.852.39$38,975
Feb 2023175075.112.47$13,144
Jan 2023168076.533.39$12,857
Dec 2022350076.415.73$26,744
Nov 2022339085.005.65$28,815
Oct 2022364087.185.86$31,734
Sep 2022368084.888.16$31,236
Aug 2022176094.529.13$16,636
Jul 20221760101.587.54$17,878
Jun 20223580115.097.98$41,202
May 20221780109.378.43$19,468
Apr 20223590104.226.84$37,415
Mar 20223370108.885.08$36,693
Feb 2022189091.054.86$17,208
Jan 2022350081.844.54$28,644
Dec 2021363071.323.90$25,889
Nov 2021345077.435.24$26,713
Oct 2021357079.795.71$28,485
Sep 2021177069.865.35$12,365
Aug 2021178066.024.22$11,752
Jul 2021522070.783.98$36,947
Jun 2021162069.493.38$11,257
May 2021347063.483.02$22,028
Apr 2021359060.362.76$21,669
Mar 2021362061.302.72$22,191
Feb 2021167057.805.55$9,653
Jan 2021181050.412.81$9,124
Dec 2020354044.642.68$15,803
Nov 2020175038.772.71$6,785
Oct 2020362036.972.48$13,383
Sep 20200037.091.99$0
Aug 2020344039.982.39$13,753
Jul 2020356038.371.83$13,660
Jun 2020531034.901.69$18,532
May 20200016.921.81$0
Apr 2020484014.751.80$7,139
Mar 2020190030.341.86$5,765
Feb 2020355049.881.98$17,707
Jan 2020367057.252.09$21,011
Dec 2019346059.012.30$20,417
Nov 2019183055.302.75$10,120
Oct 2019350053.472.42$18,715
Sep 2019177055.052.66$9,744
Aug 2019184053.112.30$9,772
Jul 2019179056.272.46$10,072
Jun 2019356052.782.49$18,790
May 2019180058.482.74$10,526
Apr 20190062.632.75$0
Mar 2019369056.803.06$20,959
Feb 2019373050.852.79$18,967
Jan 2019190046.033.23$8,746
Dec 2018558046.594.19$25,997
Nov 20180052.934.24$0
Oct 2018185061.443.40$11,366
Sep 2018183059.543.11$10,896
Aug 2018356059.403.07$21,146
Jul 2018555065.142.93$36,153
Jun 2018185060.183.08$11,133
May 2018175065.382.90$11,442
Apr 2018344063.842.90$21,961
Mar 2018541061.222.79$33,120
Feb 2018176061.782.77$10,873
Jan 2018355062.874.01$22,319
Dec 2017525057.272.92$30,067
Nov 2017173055.423.12$9,588
Oct 2017525049.292.98$25,877
Sep 2017339047.523.09$16,109
Aug 2017339045.373.00$15,380
Jul 2017340043.873.09$14,916
Jun 2017513042.493.09$21,797
May 2017352045.373.26$15,970
Apr 2017348047.933.21$16,680
Mar 2017352046.772.98$16,463
Feb 2017522050.452.95$26,335
Jan 2017176049.413.42$8,696
Dec 2016526048.763.72$25,648
Nov 2016353042.492.64$14,999
Oct 2016178046.193.09$8,222
Sep 2016166041.553.10$6,897
Aug 2016311041.442.92$12,888
Jul 2016513041.622.92$21,351
Jun 2016304045.352.69$13,786
May 2016356042.521.99$15,137
Apr 2016335036.561.99$12,248
Mar 2016512033.011.79$16,901
Feb 2016333026.472.06$8,815
Jan 2016535027.352.36$14,632
Dec 2015338032.362.00$10,938
Nov 2015547038.792.17$21,218
Oct 2015519043.552.43$22,602
Sep 2015533042.992.76$22,914
Aug 2015345040.162.87$13,855
Jul 2015499048.152.95$24,027
Jun 2015798056.152.88$44,808
May 2015333055.212.96$18,385
Apr 2015508049.822.71$25,309
Mar 2015891042.892.93$38,215
Feb 2015346044.662.98$15,452
Jan 2015508043.433.10$22,062
Dec 2014714054.693.59$39,049
Nov 2014492070.464.25$34,666
Oct 2014816078.303.90$63,893
Sep 2014475086.164.05$40,926
Aug 2014665089.394.04$59,444
Jul 2014510096.564.18$49,246
Jun 2014696098.164.74$68,319
May 2014683094.734.73$64,701
Apr 2014714095.944.81$68,501
Mar 2014684095.895.06$65,589
Feb 2014849097.406.19$82,693
Jan 2014675090.404.86$61,020
Dec 20131,163091.824.35$106,787
Nov 2013693088.853.74$61,573
Oct 2013695097.423.78$67,707
Sep 20135090104.113.72$52,992
Aug 20131,1960104.253.52$124,683
Jul 20131,2310102.523.72$126,202
Jun 2013925094.403.93$87,320
May 20131,123094.834.15$106,494
Apr 20131,132093.964.28$106,363
Mar 20131,120093.623.91$104,854
Feb 2013916091.233.42$83,567
Jan 2013917091.603.42$83,997
Dec 20121,143086.773.42$99,178
Nov 20121,128086.953.62$98,080
Oct 20121,325089.383.40$118,429
Sep 2012940094.672.92$88,990
Aug 20121,123092.662.91$104,057
Jul 20121,496085.133.02$127,354
Jun 20121,166079.822.52$93,070
May 20121,124091.612.49$102,970
Apr 20121,3130101.652.00$133,466
Mar 20121,1260105.052.22$118,286
Feb 20121,1320101.102.57$114,445
Jan 20121,131098.092.73$110,940
Dec 20111,130096.873.24$109,463
Nov 20111,133095.723.31$108,451
Oct 20111,320084.983.65$112,174
Sep 20111,313083.623.99$109,793
Aug 20111,103083.404.15$91,990
Jul 20111,405094.144.52$132,267
Jun 20111,117092.904.64$103,769
May 20111,123098.134.40$110,200
Apr 20119390105.964.33$99,496
Mar 20111,321096.364.06$127,292
Feb 2011942085.644.18$80,673
Jan 2011947086.504.59$81,916
Dec 20101,318085.734.35$112,992
Nov 20101,517080.843.80$122,634
Oct 20101,318078.103.51$102,936
Sep 20101,496072.633.98$108,654
Aug 20101,674073.684.42$123,340
Jul 20101,486072.554.74$107,809
Jun 20101,498070.364.91$105,399
May 20101,501071.124.24$106,751
Apr 20101,682081.694.12$137,403
Mar 20101,127078.394.39$88,346
Feb 20101,323073.585.44$97,346
Jan 20101,695074.365.96$126,040
Dec 20091,683071.445.48$120,234
Nov 20091,135074.593.75$84,660
Oct 20091,721072.544.11$124,841
Sep 20091,120065.543.06$73,405
Aug 20091,281067.423.22$86,365
Jul 20091,273061.133.46$77,818
Jun 20091,300066.163.90$86,008
May 2009934054.743.93$51,127
Apr 20091,291046.773.59$60,380
Mar 20091,484042.144.06$62,536
Feb 20091,116032.814.63$36,616
Jan 20091,302035.865.37$46,690
Dec 20081,326037.105.98$49,195
Nov 20081,315055.496.86$72,969
Oct 20081,303075.246.92$98,038
Sep 20081,4780101.767.88$150,401
Aug 20081,3020114.228.48$148,714
Jul 20089150131.0811.39$119,938
Jun 20081,0960131.3313.03$143,938
May 20081,4800123.1711.57$182,292
Apr 20081,3090110.3110.45$144,396
Mar 20081,5050101.909.66$153,360
Feb 20081,673092.538.77$154,803
Jan 20081,508090.388.21$136,293
Dec 20071,516088.337.30$133,908
Nov 20071,687091.677.29$154,647
Oct 20071,499082.856.92$124,192
Sep 20071,658075.846.24$125,743
Aug 20071,665069.066.39$114,985
Jul 20071,655070.906.39$117,340
Jun 20071,841062.007.55$114,142
May 20071,549058.747.85$90,988
Apr 20071,499059.617.81$89,355
Mar 20071,672056.927.30$95,170
Feb 20071,480055.108.22$81,548
Jan 20071,260050.306.73$63,378
Dec 20061,816056.656.92$102,876
Nov 20061,678054.207.62$90,948
Oct 20061,242054.906.01$68,186
Sep 20061,398060.085.04$83,992
Aug 20061,952068.717.34$134,122
Jul 20061,432069.376.34$99,338
Jun 20061,763066.286.38$116,852
May 20061,949066.016.42$128,653
Apr 20061,737064.397.36$111,845
Mar 20061,444056.707.08$81,875
Feb 20061,092057.597.75$62,888
Jan 20061,432060.598.93$86,765
Dec 20051,235054.9413.42$67,851
Nov 20051,281054.6910.59$70,058
Oct 20051,256058.3413.80$73,275
Sep 20051,449061.4512.08$89,041
Aug 20051,570061.519.80$96,571
Jul 20051,555055.697.84$86,598
Jun 20051,188152.337.38$62,175
May 20051,528145.226.65$69,103
Apr 20051,904049.207.36$93,677
Mar 20051,556050.377.15$78,376
Feb 20051,053045.226.31$47,617
Jan 20052,229143.166.32$96,210
Dec 20041,713139.866.75$68,287
Nov 20042,093145.286.33$94,777
Oct 20042,243149.706.52$111,484
Sep 20041,681143.245.28$72,692
Aug 20041,593142.375.55$67,501
Jul 20041,536138.286.08$58,804
Jun 20041,413136.106.43$51,016
May 20042,449137.486.49$91,795
Apr 20042,215134.475.86$76,357
Mar 20041,900134.365.53$65,290
Feb 20042,325132.455.51$75,452
Jan 20041,954132.036.30$62,593
Dec 20031,948130.266.30$58,953
Nov 20032,003128.804.60$57,691
Oct 20033,310128.174.76$93,247
Sep 20031,107126.314.75$29,130
Aug 20031,916129.765.13$57,025
Jul 20032,349129.415.17$69,089
Jun 2003364128.565.98$10,402

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.

Mar 2026 — as filed, then multipliedworked
Oil                   71 bbl  × $ 89.75 =     $6,372
Casinghead gas         0 Mcf  × $  3.15 =         $0

────────────────────────────────────────────────────
Month total                                   $6,372

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/68589 is the state's own key, not one this site invented.