SLC SEC. 121

Operated by ALLEGIANCE OPERATING INC. (P-5 13425) in the S. L. C. (TANNEHILL) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 10912District 7BField 79275333OilCasinghead gasSaveExport
Value, all time
$1.4 M
Jan 1993 – May 2026
Value, last 12 filed months
$0
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 9 leases and 29 wells, and the rule below applies to all of them.

Discovered
1958-07-21
as the register files it
Field class
Oil
the register's own label
Between wells
660 ft
minimum
From a lease line
330 ft
minimum

A drilling unit in this field needs at least 20 acres.

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
OilDisposition44,976 bbl$1,406,614
Casinghead gasProduction125 Mcf$259
Total$1,406,872

48 Mcf of this lease's gas, across 48 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 (5)

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 32.9562, -100.0170. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.3 miles.

32.95701, -100.01671 · 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
20.0%
1 of 5 wells
With a plug date
20.0%
1 of 5 wells
Median depth
2,500 ft
5 wells filed one
Completion to plug
13.3 years
median over 1 well

What the state filed about each well

On the RRC proration schedule
120.0%
A plug date is filed
120.0%
BothOn the schedule and plugged. Neither fact cancels the other.
120.0%
NeitherNo plug date, and not on the schedule.
480.0%

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 2,495 and 3,210 ft, median 2,500 ft, over the 5 wells that filed a depth.

Completions filed
Jul 1972 – Apr 1979
5 of 5 wells
Plug dates filed
Oct 1985
1 of 5 wells; 4 filed none

Last completion to plug: a median of 13.3 years across the 1 well that filed both dates, with the middle half between 13.3 years and 13.3 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

5 wells

42-2538103632,500 ftApr 1979
42-2538103522,501 ftApr 1979
42-2538103412,496 ftApr 1979
42-2538103742,495 ftMar 1979
42-2538103853,210 ftJul 1972Oct 1985Yes

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 20260098.932.87$0
Mar 20260089.753.15$0
Feb 20260063.503.75$0
Jan 20260059.138.00$0
Dec 20250056.664.41$0
Nov 20250058.593.93$0
Oct 20250059.383.30$0
Sep 20250062.743.08$0
Aug 20250063.933.01$0
Jul 20250066.743.32$0
Jun 20250066.483.13$0
May 20250060.553.23$0
Apr 20250062.363.54$0
Mar 20250067.704.27$0
Feb 2025166070.884.34$11,766
Jan 20250074.324.28$0
Dec 20240068.993.12$0
Nov 20240069.052.20$0
Oct 20240071.372.28$0
Sep 2024164069.612.36$11,416
Aug 20240075.632.06$0
Jul 20240079.932.15$0
Jun 2024175078.082.63$13,664
May 20240078.812.20$0
Apr 20240084.451.66$0
Mar 20240080.301.55$0
Feb 20240076.091.78$0
Jan 20240073.023.30$0
Dec 2023173071.262.61$12,328
Nov 20230077.892.81$0
Oct 20230085.443.09$0
Sep 20230089.042.74$0
Aug 2023178080.522.67$14,333
Jul 20230074.852.64$0
Jun 20230068.962.26$0
May 20230070.622.23$0
Apr 2023174078.122.24$13,593
Mar 20230072.852.39$0
Feb 20230075.112.47$0
Jan 2023104076.533.39$7,959
Dec 20220076.415.73$0
Nov 2022161085.005.65$13,685
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 20221810104.226.84$18,864
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 2018115062.874.01$7,230
Dec 20170057.272.92$0
Nov 20170055.423.12$0
Oct 20170049.292.98$0
Sep 20170047.523.09$0
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 201736049.413.42$1,779
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 2015102032.362.00$3,301
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 2015149056.152.88$8,366
May 20150055.212.96$0
Apr 20150049.822.71$0
Mar 20150042.892.93$0
Feb 2015162044.662.98$7,235
Jan 20150043.433.10$0
Dec 20140054.693.59$0
Nov 20140070.464.25$0
Oct 2014180078.303.90$14,094
Sep 20140086.164.05$0
Aug 20140089.394.04$0
Jul 20140096.564.18$0
Jun 2014157098.164.74$15,411
May 20140094.734.73$0
Apr 20140095.944.81$0
Mar 20140095.895.06$0
Feb 2014176097.406.19$17,142
Jan 20140090.404.86$0
Dec 20130091.824.35$0
Nov 20130088.853.74$0
Oct 2013171097.423.78$16,659
Sep 201300104.113.72$0
Aug 201300104.253.52$0
Jul 201300102.523.72$0
Jun 20130094.403.93$0
May 2013178094.834.15$16,880
Apr 20130093.964.28$0
Mar 2013140093.623.91$13,107
Feb 20130091.233.42$0
Jan 20130091.603.42$0
Dec 20120086.773.42$0
Nov 20120086.953.62$0
Oct 2012153089.383.40$13,675
Sep 20120094.672.92$0
Aug 20120092.662.91$0
Jul 2012159085.133.02$13,536
Jun 20120079.822.52$0
May 2012173091.612.49$15,849
Apr 201200101.652.00$0
Mar 201200105.052.22$0
Feb 20121660101.102.57$16,783
Jan 20120098.092.73$0
Dec 20110096.873.24$0
Nov 2011167095.723.31$15,985
Oct 20110084.983.65$0
Sep 20110083.623.99$0
Aug 2011157083.404.15$13,094
Jul 20110094.144.52$0
Jun 2011182092.904.64$16,908
May 20110098.134.40$0
Apr 20111680105.964.33$17,801
Mar 20110096.364.06$0
Feb 20110085.644.18$0
Jan 2011166086.504.59$14,359
Dec 20100085.734.35$0
Nov 20100080.843.80$0
Oct 2010154078.103.51$12,027
Sep 20100072.633.98$0
Aug 2010169073.684.42$12,452
Jul 20100072.554.74$0
Jun 20100070.364.91$0
May 2010133071.124.24$9,459
Apr 2010157081.694.12$12,825
Mar 2010176078.394.39$13,797
Feb 2010184073.585.44$13,539
Jan 2010179074.365.96$13,310
Dec 20090071.445.48$0
Nov 2009165074.593.75$12,307
Oct 2009153072.544.11$11,099
Sep 2009182065.543.06$11,928
Aug 2009163067.423.22$10,989
Jul 20090061.133.46$0
Jun 2009146066.163.90$9,659
May 2009178054.743.93$9,744
Apr 2009176046.773.59$8,232
Mar 2009154042.144.06$6,490
Feb 20090032.814.63$0
Jan 2009139035.865.37$4,985
Dec 2008180037.105.98$6,678
Nov 2008173055.496.86$9,600
Oct 2008170075.246.92$12,791
Sep 20081660101.767.88$16,892
Aug 200800114.228.48$0
Jul 20081700131.0811.39$22,284
Jun 20081560131.3313.03$20,487
May 200800123.1711.57$0
Apr 200800110.3110.45$0
Mar 200800101.909.66$0
Feb 2008161092.538.77$14,897
Jan 20080090.388.21$0
Dec 20070088.337.30$0
Nov 2007168091.677.29$15,401
Oct 20070082.856.92$0
Sep 2007171075.846.24$12,969
Aug 20070069.066.39$0
Jul 20070070.906.39$0
Jun 20070062.007.55$0
May 20070058.747.85$0
Apr 2007157059.617.81$9,359
Mar 20070056.927.30$0
Feb 2007147055.108.22$8,100
Jan 20070050.306.73$0
Dec 2006176056.656.92$9,970
Nov 20060054.207.62$0
Oct 20060054.906.01$0
Sep 20060060.085.04$0
Aug 2006168068.717.34$11,543
Jul 2006173069.376.34$12,001
Jun 20060066.286.38$0
May 2006174066.016.42$11,486
Apr 2006179064.397.36$11,526
Mar 20060056.707.08$0
Feb 2006156057.597.75$8,984
Jan 2006168060.598.93$10,179
Dec 20050054.9413.42$0
Nov 2005165054.6910.59$9,024
Oct 20050058.3413.80$0
Sep 2005138061.4512.08$8,480
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 20050043.166.32$0
Dec 20040039.866.75$0
Nov 20040045.286.33$0
Oct 20040049.706.52$0
Sep 20040043.245.28$0
Aug 20040042.375.55$0
Jul 200479038.286.08$3,024
Jun 20040036.106.43$0
May 20040037.486.49$0
Apr 20040034.475.86$0
Mar 20040034.365.53$0
Feb 20040032.455.51$0
Jan 20040032.036.30$0
Dec 20030030.266.30$0
Nov 20030028.804.60$0
Oct 20030028.174.76$0
Sep 20030026.314.75$0
Aug 20030029.765.13$0
Jul 20030029.415.17$0
Jun 20030028.565.98$0
May 20030126.595.97$6
Apr 20030126.675.41$5
Mar 20030131.146.10$6
Feb 20030133.487.93$8
Jan 20030130.315.58$6
Dec 20020126.914.85$5
Nov 20020124.664.14$4
Oct 20020126.464.23$4
Sep 20020127.443.64$4
Aug 20020125.963.16$3
Jul 20020124.583.06$3
Jun 20020123.733.34$3
May 20020124.663.58$4
Apr 20020123.653.51$4
Mar 20020122.003.10$3
Feb 20020118.222.38$2
Jan 20020117.172.38$2
Dec 2001158116.932.36$2,677
Nov 2001331118.072.41$5,984
Oct 20010119.782.53$3
Sep 20010124.262.25$2
Aug 20010124.873.05$3
Jul 20010123.933.20$3
Jun 20010124.563.82$4
May 20010125.524.31$4
Apr 2001144124.685.34$3,559
Mar 2001144124.545.38$3,539
Feb 200127127.755.77$755
Jan 20010127.478.40$8
Dec 2000283126.889.12$7,616
Nov 2000349132.215.66$11,247
Oct 20000131.235.15$5
Sep 2000357131.875.19$11,383
Aug 2000169129.644.54$5,014
Jul 2000354128.534.09$10,104
Jun 2000178129.304.40$5,220
May 2000173127.263.68$4,720
Apr 2000102124.513.12$2,503
Mar 2000318128.422.86$9,040
Feb 2000166127.622.73$4,588
Jan 2000275125.272.48$6,952
Dec 1999352124.282.42$8,549
Nov 1999347123.192.43$8,049
Oct 1999526120.982.80$11,038
Sep 1999331121.752.62$7,202
Aug 1999358119.262.88$6,898
Jul 1999355117.892.37$6,353
Jun 1999525115.942.36$8,371
May 1999165115.792.32$2,608
Apr 1999359115.102.21$5,423
Mar 1999343112.471.84$4,279
Feb 199934919.981.82$3,485
Jan 1999363110.381.90$3,770
Dec 199835319.201.77$3,249
Nov 1998532110.892.19$5,796
Oct 1998182112.421.97$2,262
Sep 1998335112.592.08$4,220
Aug 1998323111.301.91$3,652
Jul 1998347111.742.24$4,076
Jun 1998168111.242.24$1,891
May 1998301112.622.21$3,801
Apr 1998300113.042.51$3,915
Mar 1998351112.802.31$4,495
Feb 1998318113.952.30$4,438
Jan 1998357114.702.15$5,250
Dec 1997183116.322.41$2,989
Nov 1997355118.193.09$6,461
Oct 1997359119.253.15$6,914
Sep 1997357117.742.95$6,336
Aug 1997341117.862.55$6,093
Jul 1997179117.582.25$3,149
Jun 1997332117.242.26$5,726
May 1997527118.972.31$10,000
Apr 1997182117.882.08$3,256
Mar 1997521118.951.94$9,875
Feb 1997201120.492.21$4,121
Jan 1997509123.483.54$11,955
Dec 1996365123.32$8,512
Nov 1996350121.97$7,690
Oct 1996460123.31$10,723
Sep 1996439122.22$9,755
Aug 1996182120.26$3,687
Jul 1996494119.55$9,658
Jun 1996339118.73$6,349
May 1996480119.43$9,326
Apr 1996353121.51$7,593
Mar 1996487119.38$9,438
Feb 1996483116.98$8,201
Jan 1996522117.07$8,911
Dec 1995486117.19$8,354
Nov 1995356116.00$5,696
Oct 1995479115.43$7,391
Sep 1995474116.18$7,669
Aug 1995332115.92$5,285
Jul 1995668115.24$10,180
Jun 1995514116.41$8,435
May 1995313117.56$5,496
Apr 1995338117.73$5,993
Mar 1995296116.44$4,866
Feb 1995521116.58$8,638
Jan 1995511115.92$8,135
Dec 1994383115.03$5,756
Nov 1994338115.90$5,374
Oct 1994503115.58$7,837
Sep 1994529115.29$8,088
Aug 1994340116.13$5,484
Jul 1994533117.56$9,359
Jun 1994341117.09$5,828
May 1994323115.88$5,129
Apr 1994336114.14$4,751
Mar 1994500112.46$6,230
Feb 1994166112.50$2,075
Jan 1994330112.66$4,178
Dec 1993329112.33$4,057
Nov 1993361114.49$5,231
Oct 1993521115.85$8,258
Sep 1993337115.03$5,065
Aug 1993339115.66$5,309
Jul 1993164115.46$2,535
Jun 1993307116.79$5,155
May 1993150117.68$2,652
Apr 1993323118.05$5,830
Mar 1993317118.14$5,750
Feb 1993308117.90$5,513
Jan 1993306116.93$5,181

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.

Feb 2025 — as filed, then multipliedworked
Oil                  166 bbl  × $ 70.88 =    $11,766
Casinghead gas         0 Mcf  × $  4.34 =         $0

────────────────────────────────────────────────────
Month total                                  $11,766

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. 7B/O/10912 is the state's own key, not one this site invented.