WIER

Operated by AARONMARK SERVICES, LLC (P-5 891) in the PEARSALL (AUSTIN CHALK) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 12528District 01Field 69981125OilCasinghead gasSaveExport
Value, all time
$1.1 M
Jan 1993 – May 2026
Value, last 12 filed months
$62 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 1,992 leases and 3,388 wells, and the rule below applies to all of them.

Discovered
1936-12-28
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 2025-06-17.

The Commission's schedule remark for this field reads: LEASE PLAT. PRORATION PLAT IS NOT REQUIRED.

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
OilDisposition23,731 bbl$1,105,264
Casinghead gasProduction43 Mcf$81
Total$1,105,345

28 Mcf of this lease's gas, across 28 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 28.9228, -98.8077. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.0 miles.

28.92278, -98.80770 · 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
8,774 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 8,774 ft.

Completions filed
May 1990
1 of 1 wells

1 well

42-1633268618,774 ftMay 1990

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 20261740106.413.05$18,515
Apr 20260098.932.87$0
Mar 20260089.753.15$0
Feb 2026180063.503.75$11,430
Jan 20260059.138.00$0
Dec 2025158056.664.41$8,952
Nov 20250058.593.93$0
Oct 20250059.383.30$0
Sep 20250062.743.08$0
Aug 2025177063.933.01$11,316
Jul 20250066.743.32$0
Jun 2025171066.483.13$11,368
May 20250060.553.23$0
Apr 2025163062.363.54$10,165
Mar 20250067.704.27$0
Feb 2025131070.884.34$9,285
Jan 20250074.324.28$0
Dec 2024116068.993.12$8,003
Nov 20240069.052.20$0
Oct 2024168071.372.28$11,990
Sep 20240069.612.36$0
Aug 20240075.632.06$0
Jul 2024141079.932.15$11,270
Jun 20240078.082.63$0
May 2024156078.812.20$12,294
Apr 20240084.451.66$0
Mar 2024169080.301.55$13,571
Feb 20240076.091.78$0
Jan 2024122073.023.30$8,908
Dec 2023163071.262.61$11,615
Nov 20230077.892.81$0
Oct 2023119085.443.09$10,167
Sep 2023137089.042.74$12,198
Aug 2023145080.522.67$11,675
Jul 2023173074.852.64$12,949
Jun 2023170068.962.26$11,723
May 20230070.622.23$0
Apr 20230078.122.24$0
Mar 20230072.852.39$0
Feb 20230075.112.47$0
Jan 20230076.533.39$0
Dec 20220076.415.73$0
Nov 20220085.005.65$0
Oct 20220087.185.86$0
Sep 20220084.888.16$0
Aug 20220094.529.13$0
Jul 202200101.587.54$0
Jun 202200115.097.98$0
May 202200109.378.43$0
Apr 202200104.226.84$0
Mar 202200108.885.08$0
Feb 20220091.054.86$0
Jan 20220081.844.54$0
Dec 20210071.323.90$0
Nov 20210077.435.24$0
Oct 20210079.795.71$0
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 20190053.112.30$0
Jul 20190056.272.46$0
Jun 20190052.782.49$0
May 20190058.482.74$0
Apr 20190062.632.75$0
Mar 20190056.803.06$0
Feb 20190050.852.79$0
Jan 20190046.033.23$0
Dec 20180046.594.19$0
Nov 20180052.934.24$0
Oct 20180061.443.40$0
Sep 20180059.543.11$0
Aug 20180059.403.07$0
Jul 20180065.142.93$0
Jun 20180060.183.08$0
May 20180065.382.90$0
Apr 20180063.842.90$0
Mar 20180061.222.79$0
Feb 20180061.782.77$0
Jan 20180062.874.01$0
Dec 2017180057.272.92$10,309
Nov 20170055.423.12$0
Oct 20170049.292.98$0
Sep 2017171047.523.09$8,126
Aug 20170045.373.00$0
Jul 20170043.873.09$0
Jun 20170042.493.09$0
May 20170045.373.26$0
Apr 20170047.933.21$0
Mar 20170046.772.98$0
Feb 20170050.452.95$0
Jan 20170049.413.42$0
Dec 20160048.763.72$0
Nov 20160042.492.64$0
Oct 20160046.193.09$0
Sep 20160041.553.10$0
Aug 20160041.442.92$0
Jul 20160041.622.92$0
Jun 20160045.352.69$0
May 20160042.521.99$0
Apr 20160036.561.99$0
Mar 20160033.011.79$0
Feb 20160026.472.06$0
Jan 20160027.352.36$0
Dec 20150032.362.00$0
Nov 20150038.792.17$0
Oct 20150043.552.43$0
Sep 20150042.992.76$0
Aug 20150040.162.87$0
Jul 20150048.152.95$0
Jun 20150056.152.88$0
May 20150055.212.96$0
Apr 20150049.822.71$0
Mar 20150042.892.93$0
Feb 20150044.662.98$0
Jan 20150043.433.10$0
Dec 20140054.693.59$0
Nov 20140070.464.25$0
Oct 20140078.303.90$0
Sep 2014100086.164.05$8,616
Aug 20140089.394.04$0
Jul 201459096.564.18$5,697
Jun 201498098.164.74$9,620
May 20140094.734.73$0
Apr 20140095.944.81$0
Mar 20140095.895.06$0
Feb 201498097.406.19$9,545
Jan 20140090.404.86$0
Dec 2013154091.824.35$14,140
Nov 20130088.853.74$0
Oct 20130097.423.78$0
Sep 2013620104.113.72$6,455
Aug 20131680104.253.52$17,514
Jul 201300102.523.72$0
Jun 20130094.403.93$0
May 2013148094.834.15$14,035
Apr 20130093.964.28$0
Mar 2013230093.623.91$21,533
Feb 20130091.233.42$0
Jan 20130091.603.42$0
Dec 2012173086.773.42$15,011
Nov 20120086.953.62$0
Oct 20120089.383.40$0
Sep 20120094.672.92$0
Aug 20120092.662.91$0
Jul 2012127085.133.02$10,812
Jun 20120079.822.52$0
May 2012143091.612.49$13,100
Apr 201200101.652.00$0
Mar 20121360105.052.22$14,287
Feb 201200101.102.57$0
Jan 2012137098.092.73$13,438
Dec 201193096.873.24$9,009
Nov 20110095.723.31$0
Oct 2011122084.983.65$10,368
Sep 20110083.623.99$0
Aug 2011145083.404.15$12,093
Jul 20110094.144.52$0
Jun 2011157092.904.64$14,585
May 2011170098.134.40$16,682
Apr 20111790105.964.33$18,967
Mar 20110096.364.06$0
Feb 20110085.644.18$0
Jan 20110086.504.59$0
Dec 20100085.734.35$0
Nov 2010110080.843.80$8,892
Oct 20100078.103.51$0
Sep 2010125072.633.98$9,079
Aug 20100073.684.42$0
Jul 2010185072.554.74$13,422
Jun 20100070.364.91$0
May 20100071.124.24$0
Apr 201077081.694.12$6,290
Mar 20100078.394.39$0
Feb 20100073.585.44$0
Jan 201052074.365.96$3,867
Dec 2009113071.445.48$8,073
Nov 200974074.593.75$5,520
Oct 2009124072.544.11$8,995
Sep 20090065.543.06$0
Aug 200975067.423.22$5,057
Jul 20090061.133.46$0
Jun 2009162066.163.90$10,718
May 2009150054.743.93$8,211
Apr 20090046.773.59$0
Mar 20090042.144.06$0
Feb 20090032.814.63$0
Jan 200972035.865.37$2,582
Dec 20080037.105.98$0
Nov 20080055.496.86$0
Oct 200868075.246.92$5,116
Sep 2008390101.767.88$3,969
Aug 20081600114.228.48$18,275
Jul 200800131.0811.39$0
Jun 2008910131.3313.03$11,951
May 20081580123.1711.57$19,461
Apr 200800110.3110.45$0
Mar 200800101.909.66$0
Feb 2008171092.538.77$15,823
Jan 2008156090.388.21$14,099
Dec 20070088.337.30$0
Nov 2007167091.677.29$15,309
Oct 2007330082.856.92$27,341
Sep 2007167075.846.24$12,665
Aug 2007301069.066.39$20,787
Jul 2007163070.906.39$11,557
Jun 2007321062.007.55$19,902
May 2007340058.747.85$19,972
Apr 2007157059.617.81$9,359
Mar 20070056.927.30$0
Feb 20070055.108.22$0
Jan 20070050.306.73$0
Dec 20060056.656.92$0
Nov 20060054.207.62$0
Oct 20060054.906.01$0
Sep 20060060.085.04$0
Aug 20060068.717.34$0
Jul 20060069.376.34$0
Jun 20060066.286.38$0
May 20060066.016.42$0
Apr 20060064.397.36$0
Mar 20060056.707.08$0
Feb 20060057.597.75$0
Jan 20060060.598.93$0
Dec 20050054.9413.42$0
Nov 20050054.6910.59$0
Oct 20050058.3413.80$0
Sep 20050061.4512.08$0
Aug 20050061.519.80$0
Jul 20050055.697.84$0
Jun 20050052.337.38$0
May 20050045.226.65$0
Apr 20050049.207.36$0
Mar 20050050.377.15$0
Feb 20050045.226.31$0
Jan 20050143.166.32$6
Dec 20040039.866.75$0
Nov 20040045.286.33$0
Oct 2004155049.706.52$7,704
Sep 20040043.245.28$0
Aug 20040142.375.55$6
Jul 20040138.286.08$6
Jun 20040036.106.43$0
May 2004158137.486.49$5,928
Apr 20040134.475.86$6
Mar 20040134.365.53$6
Feb 200493132.455.51$3,023
Jan 2004171032.036.30$5,477
Dec 20030030.266.30$0
Nov 20030028.804.60$0
Oct 20030028.174.76$0
Sep 20030026.314.75$0
Aug 200345029.765.13$1,339
Jul 200345029.415.17$1,323
Jun 20030028.565.98$0
May 20030126.595.97$6
Apr 20030026.675.41$0
Mar 20030031.146.10$0
Feb 20030133.487.93$8
Jan 20030130.315.58$6
Dec 2002268126.914.85$7,217
Nov 2002311124.664.14$7,673
Oct 2002154126.464.23$4,079
Sep 2002158127.443.64$4,339
Aug 2002169125.963.16$4,390
Jul 20020024.583.06$0
Jun 20020023.733.34$0
May 20020024.663.58$0
Apr 20020023.653.51$0
Mar 20020022.003.10$0
Feb 20020018.222.38$0
Jan 2002345017.172.38$5,924
Dec 2001483016.932.36$8,177
Nov 20010018.072.41$0
Oct 20010019.782.53$0
Sep 20010024.262.25$0
Aug 20010024.873.05$0
Jul 20010023.933.20$0
Jun 20010024.563.82$0
May 20010025.524.31$0
Apr 2001488024.685.34$12,044
Mar 20010024.545.38$0
Feb 2001321027.755.77$8,908
Jan 2001319027.478.40$8,763
Dec 20000026.889.12$0
Nov 20000032.215.66$0
Oct 2000294031.235.15$9,182
Sep 2000322031.875.19$10,262
Aug 2000462029.644.54$13,694
Jul 2000169028.534.09$4,822
Jun 2000667029.304.40$19,543
May 2000488027.263.68$13,303
Apr 2000625024.513.12$15,319
Mar 2000470028.422.86$13,357
Feb 20000027.622.73$0
Jan 20000025.272.48$0
Dec 19990024.282.42$0
Nov 19990023.192.43$0
Oct 19990020.982.80$0
Sep 19990021.752.62$0
Aug 19990019.262.88$0
Jul 19990017.892.37$0
Jun 19990015.942.36$0
May 19990015.792.32$0
Apr 19990015.102.21$0
Mar 19990012.471.84$0
Feb 1999009.981.82$0
Jan 19990010.381.90$0
Dec 1998009.201.77$0
Nov 19980010.892.19$0
Oct 19980012.421.97$0
Sep 19980012.592.08$0
Aug 19980011.301.91$0
Jul 19980011.742.24$0
Jun 19980011.242.24$0
May 1998243012.622.21$3,067
Apr 19980013.042.51$0
Mar 19980012.802.31$0
Feb 19980013.952.30$0
Jan 19980014.702.15$0
Dec 19970016.322.41$0
Nov 19970018.193.09$0
Oct 19970019.253.15$0
Sep 19970017.742.95$0
Aug 19970017.862.55$0
Jul 19970017.582.25$0
Jun 19970017.242.26$0
May 19970018.972.31$0
Apr 19970017.882.08$0
Mar 19970018.951.94$0
Feb 19970020.492.21$0
Jan 19970023.483.54$0
Dec 19960023.32$0
Nov 19960021.97$0
Oct 19960023.31$0
Sep 19960022.22$0
Aug 19960020.26$0
Jul 19960019.55$0
Jun 19960018.73$0
May 19960019.43$0
Apr 19960021.51$0
Mar 19960019.38$0
Feb 19960016.98$0
Jan 19960017.07$0
Dec 19950017.19$0
Nov 19950016.00$0
Oct 19950015.43$0
Sep 19950016.18$0
Aug 19950015.92$0
Jul 19950015.24$0
Jun 19950116.41$0
May 19950117.56$0
Apr 19950117.73$0
Mar 19950116.44$0
Feb 1995163116.58$2,703
Jan 19950115.92$0
Dec 19940115.03$0
Nov 19940115.90$0
Oct 19940115.58$0
Sep 19940115.29$0
Aug 19940116.13$0
Jul 1994153117.56$2,687
Jun 19940017.09$0
May 1994135015.88$2,144
Apr 19940114.14$0
Mar 1994267112.46$3,327
Feb 19940112.50$0
Jan 1994319112.66$4,039
Dec 1993802112.33$9,889
Nov 19930114.49$0
Oct 1993499115.85$7,909
Sep 19930115.03$0
Aug 1993318115.66$4,980
Jul 1993815115.46$12,600
Jun 19930116.79$0
May 1993652117.68$11,527
Apr 1993347118.05$6,263
Mar 1993680118.14$12,335
Feb 1993357117.90$6,390
Jan 1993710116.93$12,020

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                  174 bbl  × $106.41 =    $18,515
Casinghead gas         0 Mcf  × $  3.05 =         $0

────────────────────────────────────────────────────
Month total                                  $18,515

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. 01/O/12528 is the state's own key, not one this site invented.