VOLLMERT 'B'

Operated by UNIT PETROLEUM COMPANY (P-5 877099) in the MENDOTA, NW. (GRANITE WASH) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Gas lease lease 208510District 10Field 604625002 tax incentive programmesCondensateGasSaveExport
Value, all time
$9.2 M
Nov 2004 – May 2026
Value, last 12 filed months
$5 k
at the published price for each month
Months reported
259
no gaps in the span
Streams
2
condensate, 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 718 leases and 729 wells, and the rule below applies to all of them.

Discovered
1965-01-23
as the register files it
Field class
Oil and gas
the register's own label
Between wells
467 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 2011-06-27.

The Commission's schedule remark for this field reads: WASH) FIELD EFFECTIVE 12/05/17.

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
High Cost Gas112007-09-27175413
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
CondensateDisposition19,806 bbl$1,310,804
GasProduction1,063,239 Mcf$7,890,767
Total$9,201,571

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 35.8656, -100.5491. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.0 miles.

35.86556, -100.54908 · 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
11,155 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 11,155 ft.

Completions filed
Nov 2003
1 of 1 wells

1 well

42-39331579511,155 ftNov 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 (259)

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

259 months

May 20260114106.413.05$347
Apr 2026010798.932.87$307
Mar 2026011389.753.15$356
Feb 2026010563.503.75$394
Jan 2026010759.138.00$856
Dec 2025011656.664.41$512
Nov 2025011258.593.93$440
Oct 2025011959.383.30$393
Sep 2025010862.743.08$332
Aug 2025011963.933.01$359
Jul 2025011966.743.32$395
Jun 2025011766.483.13$366
May 2025012360.553.23$398
Apr 2025011362.363.54$400
Mar 2025012467.704.27$529
Feb 2025010970.884.34$473
Jan 2025012674.324.28$539
Dec 2024012668.993.12$393
Nov 2024012869.052.20$281
Oct 2024013071.372.28$297
Sep 2024011969.612.36$281
Aug 2024012775.632.06$262
Jul 2024013079.932.15$279
Jun 2024013178.082.63$345
May 2024013778.812.20$301
Apr 2024013284.451.66$219
Mar 2024014380.301.55$221
Feb 2024012176.091.78$216
Jan 2024013873.023.30$455
Dec 2023014371.262.61$373
Nov 2023014377.892.81$401
Oct 2023014685.443.09$451
Sep 2023014489.042.74$394
Aug 2023015380.522.67$409
Jul 2023015374.852.64$404
Jun 2023014968.962.26$337
May 2023015970.622.23$354
Apr 2023015078.122.24$336
Mar 2023014872.852.39$354
Feb 2023013075.112.47$321
Jan 2023016576.533.39$559
Dec 2022017376.415.73$991
Nov 2022016485.005.65$926
Oct 2022015887.185.86$926
Sep 2022016484.888.16$1,339
Aug 2022018694.529.13$1,698
Jul 20220180101.587.54$1,358
Jun 20220194115.097.98$1,548
May 20220194109.378.43$1,636
Apr 20220179104.226.84$1,224
Mar 20220252108.885.08$1,279
Feb 2022027491.054.86$1,331
Jan 2022038381.844.54$1,738
Dec 2021039371.323.90$1,532
Nov 2021041277.435.24$2,158
Oct 202104379.795.71$246
Sep 20210069.865.35$0
Aug 20210066.024.22$0
Jul 20210070.783.98$0
Jun 20210069.493.38$0
May 20210063.483.02$0
Apr 20210060.362.76$0
Mar 20210061.302.72$0
Feb 20210057.805.55$0
Jan 20210050.412.81$0
Dec 20200044.642.68$0
Nov 20200038.772.71$0
Oct 20200036.972.48$0
Sep 20200037.091.99$0
Aug 20200039.982.39$0
Jul 20200038.371.83$0
Jun 20200034.901.69$0
May 20200016.921.81$0
Apr 20200014.751.80$0
Mar 20200030.341.86$0
Feb 20200049.881.98$0
Jan 20200057.252.09$0
Dec 20190059.012.30$0
Nov 20190055.302.75$0
Oct 20190053.472.42$0
Sep 20190055.052.66$0
Aug 2019015453.112.30$355
Jul 2019021156.272.46$519
Jun 2019021352.782.49$531
May 2019021758.482.74$595
Apr 2019022462.632.75$616
Mar 2019023056.803.06$704
Feb 2019020250.852.79$564
Jan 2019022746.033.23$733
Dec 2018021146.594.19$883
Nov 2018020652.934.24$873
Oct 2018020761.443.40$703
Sep 2018023459.543.11$727
Aug 2018024759.403.07$757
Jul 2018023965.142.93$701
Jun 2018025960.183.08$797
May 2018028465.382.90$824
Apr 2018730763.842.90$1,337
Mar 201817021061.222.79$10,993
Feb 2018019461.782.77$537
Jan 2018019262.874.01$770
Dec 2017024457.272.92$713
Nov 2017024055.423.12$748
Oct 2017027749.292.98$826
Sep 2017027647.523.09$852
Aug 2017029445.373.00$883
Jul 2017028843.873.09$889
Jun 2017026542.493.09$818
May 2017056845.373.26$1,854
Apr 2017056447.933.21$1,811
Mar 2017059146.772.98$1,763
Feb 2017051850.452.95$1,529
Jan 2017057549.413.42$1,966
Dec 2016058048.763.72$2,159
Nov 2016032642.492.64$862
Oct 2016034246.193.09$1,057
Sep 2016033141.553.10$1,026
Aug 2016035141.442.92$1,026
Jul 2016036441.622.92$1,064
Jun 2016031345.352.69$841
May 2016037542.521.99$747
Apr 2016035836.561.99$713
Mar 2016039733.011.79$712
Feb 2016038626.472.06$797
Jan 2016039927.352.36$943
Dec 2015040132.362.00$803
Nov 201517942338.792.17$7,860
Oct 2015043443.552.43$1,053
Sep 2015044242.992.76$1,219
Aug 2015043240.162.87$1,241
Jul 2015048148.152.95$1,417
Jun 2015043456.152.88$1,251
May 2015045255.212.96$1,336
Apr 2015045949.822.71$1,242
Mar 2015043542.892.93$1,277
Feb 2015043644.662.98$1,298
Jan 2015046143.433.10$1,429
Dec 2014041054.693.59$1,472
Nov 2014046070.464.25$1,956
Oct 2014048678.303.90$1,896
Sep 2014050386.164.05$2,035
Aug 2014049289.394.04$1,985
Jul 2014031496.564.18$1,312
Jun 2014040698.164.74$1,923
May 2014046594.734.73$2,198
Apr 2014042895.944.81$2,058
Mar 2014042095.895.06$2,124
Feb 2014042897.406.19$2,650
Jan 201418748390.404.86$19,253
Dec 2013051991.824.35$2,260
Nov 2013058788.853.74$2,194
Oct 2013053997.423.78$2,037
Sep 20130460104.113.72$1,710
Aug 20130472104.253.52$1,663
Jul 20130475102.523.72$1,766
Jun 2013050494.403.93$1,982
May 2013052994.834.15$2,195
Apr 2013049493.964.28$2,116
Mar 2013036493.623.91$1,424
Feb 2013036191.233.42$1,235
Jan 2013043191.603.42$1,474
Dec 2012038886.773.42$1,327
Nov 2012045786.953.62$1,657
Oct 2012069389.383.40$2,356
Sep 2012087194.672.92$2,542
Aug 2012077492.662.91$2,251
Jul 2012079685.133.02$2,405
Jun 2012082579.822.52$2,078
May 201201,04391.612.49$2,595
Apr 201201,090101.652.00$2,177
Mar 201201,044105.052.22$2,320
Feb 20120848101.102.57$2,180
Jan 2012080498.092.73$2,198
Dec 2011063596.873.24$2,057
Nov 2011084995.723.31$2,811
Oct 2011057884.983.65$2,109
Sep 201118194083.623.99$18,882
Aug 201101,16583.404.15$4,834
Jul 201101,33294.144.52$6,017
Jun 201101,27892.904.64$5,930
May 201102,01598.134.40$8,876
Apr 201101,868105.964.33$8,095
Mar 201101,45096.364.06$5,883
Feb 20111891,45785.644.18$22,276
Jan 201102,07886.504.59$9,535
Dec 201001,76585.734.35$7,674
Nov 201002,12380.843.80$8,057
Oct 20101842,11878.103.51$21,802
Sep 201002,38672.633.98$9,495
Aug 201002,48373.684.42$10,973
Jul 201002,38572.554.74$11,297
Jun 201002,49870.364.91$12,266
May 201002,37671.124.24$10,063
Apr 201002,13481.694.12$8,798
Mar 20101812,38578.394.39$24,656
Feb 201002,54273.585.44$13,834
Jan 201002,46774.365.96$14,713
Dec 20091722,93671.445.48$28,388
Nov 200902,93274.593.75$10,999
Oct 200903,10372.544.11$12,754
Sep 20091953,53865.543.06$23,623
Aug 200903,32767.423.22$10,708
Jul 200902,86161.133.46$9,912
Jun 20091744,50266.163.90$29,047
May 200904,99054.743.93$19,589
Apr 20091774,77546.773.59$25,409
Mar 200905,72642.144.06$23,242
Feb 20091605,82432.814.63$32,232
Jan 20091767,12835.865.37$44,596
Dec 20081868,06337.105.98$55,094
Nov 20081798,56855.496.86$68,712
Oct 2008010,13375.246.92$70,140
Sep 200835511,686101.767.88$128,176
Aug 200818213,073114.228.48$131,687
Jul 200835713,595131.0811.39$201,635
Jun 200817612,774131.3313.03$189,593
May 200853513,458123.1711.57$221,663
Apr 200817913,266110.3110.45$158,440
Mar 200835913,722101.909.66$169,192
Feb 200819012,76692.538.77$129,546
Jan 200836614,05490.388.21$148,402
Dec 200737414,09488.337.30$135,949
Nov 200736114,37391.677.29$137,896
Oct 200731615,33682.856.92$132,336
Sep 200735615,09275.846.24$121,236
Aug 200719315,56369.066.39$112,744
Jul 200756816,32870.906.39$144,573
Jun 200719317,31662.007.55$142,675
May 200758114,09458.747.85$144,713
Apr 200738616,86259.617.81$154,621
Mar 200719217,08656.927.30$135,690
Feb 200719614,52955.108.22$130,170
Jan 200738816,95650.306.73$133,577
Dec 200619815,90256.656.92$121,234
Nov 200638417,02954.207.62$150,531
Oct 200638516,90154.906.01$122,776
Sep 200657218,20360.085.04$126,058
Aug 200619120,36668.717.34$162,608
Jul 200618921,47669.376.34$149,328
Jun 200637821,99466.286.38$165,461
May 200656121,57466.016.42$175,645
Apr 200619319,39264.397.36$155,162
Mar 200637620,80556.707.08$168,679
Feb 200619518,68557.597.75$156,060
Jan 200619521,06260.598.93$199,969
Dec 200537620,80754.9413.42$299,792
Nov 200538721,02954.6910.59$243,828
Oct 200538122,98958.3413.80$339,378
Sep 200538223,03861.4512.08$301,750
Aug 200538024,74261.519.80$265,767
Jul 200557325,15755.697.84$229,233
Jun 200537425,64152.337.38$208,829
May 200538627,53645.226.65$200,601
Apr 200558029,53549.207.36$245,928
Mar 200538735,15650.377.15$271,030
Feb 200575440,70745.226.31$291,035
Jan 20051,35145,74043.166.32$347,487
Dec 200417811,69339.866.75$86,035
Nov 200405645.286.33$355

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
Condensate             0 bbl  × $106.41 =         $0
Gas                  114 Mcf  × $  3.05 =       $347

────────────────────────────────────────────────────
Month total                                     $347

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. 10/G/208510 is the state's own key, not one this site invented.