LONG

Operated by OLD CHIEF OIL, LLC (P-5 102306) in the SOMERSET field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 11972District 01Field 84560001OilCasinghead gasSaveExport
Value, all time
$3.5 M
Jan 1993 – May 2026
Value, last 12 filed months
$76 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 1,033 leases and 5,137 wells, and the rule below applies to all of them.

Discovered
1911-12-31
as the register files it
Field class
Oil and gas
the register's own label
Between wells
330 ft
minimum
From a lease line
150 ft
minimum

A drilling unit in this field needs at least 2.05 acres. The field rule took effect on 1986-02-01.

The Commission's schedule remark for this field reads: RULES EFF. FOR SOMERSET FIELD 12-11-78.

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
OilDisposition75,775 bbl$3,472,190
Casinghead gasProduction70 Mcf$53
Total$3,472,243

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 (13)

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 29.2675, -98.6408. A lease has no coordinate of its own — that point is the mean of its wells, and they span 3.9 miles.

29.24629, -98.64155 · 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 13 wells
With a plug date
0.0%
0 of 13 wells
Median depth
1,268 ft
13 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.
13100.0%

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

Total depth in feet, 13 of 13 wells. Median 1,268 ft, with the middle half between 1,259 and 1,303 ft; the shallowest is 1,240 ft and the deepest 1,350 ft. The median is published rather than the mean, because a single mis-keyed depth moves a mean and cannot move a median.

When they were last completed

Last completion by decade, 13 of 13 wells, Feb 1988 – Apr 1989. This is the LAST completion filed on each wellbore, not the first — a well recompleted in 2019 counts once, in the 2010s.

Completions filed
Feb 1988 – Apr 1989
13 of 13 wells

13 wells

42-02937956201,302 ftApr 1989
42-02937955191,304 ftMar 1989
42-02937946141,265 ftOct 1988
42-02937944151,350 ftOct 1988
42-0293793461,268 ftMay 1988
42-0293794551,240 ftMay 1988
42-0293794341,240 ftMay 1988
42-02937896A 131,279 ftMay 1988
42-02937935121,265 ftMay 1988
42-0293791871,310 ftMay 1988
42-0293788111,303 ftMar 1988
42-02937917111,259 ftMar 1988
42-0293789521,257 ftFeb 1988

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 2026165098.932.87$16,323
Mar 20260089.753.15$0
Feb 2026165063.503.75$10,478
Jan 20260059.138.00$0
Dec 2025169056.664.41$9,576
Nov 2025152058.593.93$8,906
Oct 20250059.383.30$0
Sep 2025158062.743.08$9,913
Aug 20250063.933.01$0
Jul 2025158066.743.32$10,545
Jun 2025159066.483.13$10,570
May 2025172060.553.23$10,415
Apr 20250062.363.54$0
Mar 2025155067.704.27$10,494
Feb 2025163070.884.34$11,553
Jan 2025154074.324.28$11,445
Dec 202437068.993.12$2,553
Nov 20240069.052.20$0
Oct 20240071.372.28$0
Sep 20240069.612.36$0
Aug 20240075.632.06$0
Jul 20240079.932.15$0
Jun 20240078.082.63$0
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 20230071.262.61$0
Nov 2023139077.892.81$10,827
Oct 20230085.443.09$0
Sep 20230089.042.74$0
Aug 2023149080.522.67$11,997
Jul 20230074.852.64$0
Jun 2023149068.962.26$10,275
May 20230070.622.23$0
Apr 2023115078.122.24$8,984
Mar 20230072.852.39$0
Feb 202366075.112.47$4,957
Jan 2023162076.533.39$12,398
Dec 20220076.415.73$0
Nov 2022154085.005.65$13,090
Oct 20220087.185.86$0
Sep 20220084.888.16$0
Aug 20220094.529.13$0
Jul 202200101.587.54$0
Jun 20221550115.097.98$17,839
May 202200109.378.43$0
Apr 20221450104.226.84$15,112
Mar 202200108.885.08$0
Feb 2022159091.054.86$14,477
Jan 20220081.844.54$0
Dec 2021158071.323.90$11,269
Nov 20210077.435.24$0
Oct 2021159079.795.71$12,687
Sep 20210069.865.35$0
Aug 2021157066.024.22$10,365
Jul 20210070.783.98$0
Jun 2021138069.493.38$9,590
May 20210063.483.02$0
Apr 2021127060.362.76$7,666
Mar 2021106061.302.72$6,498
Feb 2021129057.805.55$7,456
Jan 2021152050.412.81$7,662
Dec 20200044.642.68$0
Nov 20200038.772.71$0
Oct 20200036.972.48$0
Sep 2020154037.091.99$5,712
Aug 2020153039.982.39$6,117
Jul 20200038.371.83$0
Jun 2020154034.901.69$5,375
May 2020167016.921.81$2,826
Apr 2020179014.751.80$2,640
Mar 20200030.341.86$0
Feb 2020140049.881.98$6,983
Jan 202083057.252.09$4,752
Dec 201963059.012.30$3,718
Nov 2019139055.302.75$7,687
Oct 201997053.472.42$5,187
Sep 2019140055.052.66$7,707
Aug 20190053.112.30$0
Jul 2019144056.272.46$8,103
Jun 2019100052.782.49$5,278
May 20190058.482.74$0
Apr 2019111062.632.75$6,952
Mar 201970056.803.06$3,976
Feb 201974050.852.79$3,763
Jan 201975046.033.23$3,452
Dec 201864046.594.19$2,982
Nov 201874052.934.24$3,917
Oct 201878061.443.40$4,792
Sep 2018150059.543.11$8,931
Aug 2018214059.403.07$12,712
Jul 2018122065.142.93$7,947
Jun 2018142060.183.08$8,546
May 2018143065.382.90$9,349
Apr 201856063.842.90$3,575
Mar 201879061.222.79$4,836
Feb 201882061.782.77$5,066
Jan 201893062.874.01$5,847
Dec 201790057.272.92$5,154
Nov 201799055.423.12$5,487
Oct 201792049.292.98$4,535
Sep 201750047.523.09$2,376
Aug 201775045.373.00$3,403
Jul 201779043.873.09$3,466
Jun 201773042.493.09$3,102
May 201757045.373.26$2,586
Apr 201780047.933.21$3,834
Mar 201785046.772.98$3,975
Feb 201790050.452.95$4,541
Jan 201779049.413.42$3,903
Dec 2016110048.763.72$5,364
Nov 20160042.492.64$0
Oct 201699046.193.09$4,573
Sep 201660041.553.10$2,493
Aug 201684041.442.92$3,481
Jul 201660041.622.92$2,497
Jun 201662045.352.69$2,812
May 2016111042.521.99$4,720
Apr 2016102036.561.99$3,729
Mar 2016116033.011.79$3,829
Feb 201699026.472.06$2,621
Jan 2016109027.352.36$2,981
Dec 201588032.362.00$2,848
Nov 201577038.792.17$2,987
Oct 201569043.552.43$3,005
Sep 201597042.992.76$4,170
Aug 201595040.162.87$3,815
Jul 2015171048.152.95$8,234
Jun 201542056.152.88$2,358
May 2015115055.212.96$6,349
Apr 2015106049.822.71$5,281
Mar 2015104042.892.93$4,461
Feb 2015102044.662.98$4,555
Jan 2015120043.433.10$5,212
Dec 2014102054.693.59$5,578
Nov 2014102070.464.25$7,187
Oct 2014121078.303.90$9,474
Sep 2014123086.164.05$10,598
Aug 201497089.394.04$8,671
Jul 2014110096.564.18$10,622
Jun 2014101098.164.74$9,914
May 2014121094.734.73$11,462
Apr 2014117095.944.81$11,225
Mar 2014145095.895.06$13,904
Feb 2014150097.406.19$14,610
Jan 2014153090.404.86$13,831
Dec 2013196091.824.35$17,997
Nov 2013162088.853.74$14,394
Oct 2013202097.423.78$19,679
Sep 20132020104.113.72$21,030
Aug 20132010104.253.52$20,954
Jul 20132020102.523.72$20,709
Jun 2013233094.403.93$21,995
May 2013234094.834.15$22,190
Apr 2013254093.964.28$23,866
Mar 2013188093.623.91$17,601
Feb 2013251091.233.42$22,899
Jan 2013251091.603.42$22,992
Dec 2012348086.773.42$30,196
Nov 2012153086.953.62$13,303
Oct 2012300089.383.40$26,814
Sep 2012300094.672.92$28,401
Aug 2012338092.662.91$31,319
Jul 2012262085.133.02$22,304
Jun 2012322079.822.52$25,702
May 2012363091.612.49$33,254
Apr 20123200101.652.00$32,528
Mar 20123270105.052.22$34,351
Feb 20123690101.102.57$37,306
Jan 2012389098.092.73$38,157
Dec 2011359096.873.24$34,776
Nov 2011264095.723.31$25,270
Oct 2011305084.983.65$25,919
Sep 2011362083.623.99$30,270
Aug 2011309083.404.15$25,771
Jul 2011160094.144.52$15,062
Jun 2011160092.904.64$14,864
May 2011275098.134.40$26,986
Apr 20112700105.964.33$28,609
Mar 2011254096.364.06$24,475
Feb 2011122085.644.18$10,448
Jan 2011292086.504.59$25,258
Dec 2010260085.734.35$22,290
Nov 2010378080.843.80$30,558
Oct 2010256078.103.51$19,994
Sep 2010292072.633.98$21,208
Aug 2010353073.684.42$26,009
Jul 2010200072.554.74$14,510
Jun 2010198070.364.91$13,931
May 2010253071.124.24$17,993
Apr 2010153081.694.12$12,499
Mar 2010251078.394.39$19,676
Feb 2010173073.585.44$12,729
Jan 2010181074.365.96$13,459
Dec 2009253071.445.48$18,074
Nov 2009140074.593.75$10,443
Oct 2009311072.544.11$22,560
Sep 2009212065.543.06$13,894
Aug 2009309067.423.22$20,833
Jul 2009305061.133.46$18,645
Jun 2009210066.163.90$13,894
May 2009252054.743.93$13,794
Apr 2009242046.773.59$11,318
Mar 2009197042.144.06$8,302
Feb 2009225032.814.63$7,382
Jan 2009159035.865.37$5,702
Dec 2008264037.105.98$9,794
Nov 2008171055.496.86$9,489
Oct 2008145075.246.92$10,910
Sep 20081380101.767.88$14,043
Aug 20081900114.228.48$21,702
Jul 20081740131.0811.39$22,808
Jun 20081810131.3313.03$23,771
May 20081630123.1711.57$20,077
Apr 20081700110.3110.45$18,753
Mar 20081470101.909.66$14,979
Feb 2008204092.538.77$18,876
Jan 2008258090.388.21$23,318
Dec 2007231088.337.30$20,404
Nov 2007258091.677.29$23,651
Oct 200783082.856.92$6,877
Sep 2007210075.846.24$15,926
Aug 2007181069.066.39$12,500
Jul 2007228070.906.39$16,165
Jun 2007227062.007.55$14,074
May 2007156058.747.85$9,163
Apr 2007168059.617.81$10,014
Mar 2007286056.927.30$16,279
Feb 2007143055.108.22$7,879
Jan 2007214050.306.73$10,764
Dec 2006190056.656.92$10,764
Nov 2006205054.207.62$11,111
Oct 2006150054.906.01$8,235
Sep 2006245060.085.04$14,720
Aug 2006201068.717.34$13,811
Jul 2006144069.376.34$9,989
Jun 2006292066.286.38$19,354
May 2006166066.016.42$10,958
Apr 2006142064.397.36$9,143
Mar 2006174056.707.08$9,866
Feb 2006224057.597.75$12,900
Jan 2006185060.598.93$11,209
Dec 2005182054.9413.42$9,999
Nov 2005161054.6910.59$8,805
Oct 2005195058.3413.80$11,376
Sep 2005245061.4512.08$15,055
Aug 2005171061.519.80$10,518
Jul 2005208055.697.84$11,584
Jun 2005195052.337.38$10,204
May 2005211045.226.65$9,541
Apr 2005174049.207.36$8,561
Mar 2005160050.377.15$8,059
Feb 2005222045.226.31$10,039
Jan 2005178043.166.32$7,682
Dec 2004256039.866.75$10,204
Nov 2004175045.286.33$7,924
Oct 2004177049.706.52$8,797
Sep 2004181043.245.28$7,826
Aug 2004252042.375.55$10,677
Jul 2004215038.286.08$8,230
Jun 2004171036.106.43$6,173
May 2004301037.486.49$11,281
Apr 2004156034.475.86$5,377
Mar 2004208034.365.53$7,147
Feb 2004159032.455.51$5,160
Jan 2004214032.036.30$6,854
Dec 2003226030.266.30$6,839
Nov 2003290028.804.60$8,352
Oct 2003226028.174.76$6,366
Sep 2003153026.314.75$4,025
Aug 2003235029.765.13$6,994
Jul 2003241029.415.17$7,088
Jun 2003157028.565.98$4,484
May 2003275026.595.97$7,312
Apr 2003231026.675.41$6,161
Mar 2003216031.146.10$6,726
Feb 2003238033.487.93$7,968
Jan 2003147030.315.58$4,456
Dec 2002210026.914.85$5,651
Nov 200274024.664.14$1,825
Oct 2002304026.464.23$8,044
Sep 2002222027.443.64$6,092
Aug 2002222025.963.16$5,763
Jul 2002149024.583.06$3,662
Jun 2002330023.733.34$7,831
May 2002135024.663.58$3,329
Apr 2002215023.653.51$5,085
Mar 2002268022.003.10$5,896
Feb 2002140018.222.38$2,551
Jan 2002312017.172.38$5,357
Dec 2001237016.932.36$4,012
Nov 2001141018.072.41$2,548
Oct 2001323019.782.53$6,389
Sep 2001158024.262.25$3,833
Aug 2001232024.873.05$5,770
Jul 2001221023.933.20$5,289
Jun 2001251024.563.82$6,165
May 2001233025.524.31$5,946
Apr 2001261024.685.34$6,441
Mar 2001278024.545.38$6,822
Feb 2001145027.755.77$4,024
Jan 2001238027.478.40$6,538
Dec 2000250026.889.12$6,720
Nov 2000226032.215.66$7,279
Oct 2000252031.235.15$7,870
Sep 2000295031.875.19$9,402
Aug 2000247029.644.54$7,321
Jul 2000256028.534.09$7,304
Jun 2000446029.304.40$13,068
May 2000162027.263.68$4,416
Apr 2000260024.513.12$6,373
Mar 2000245028.422.86$6,963
Feb 2000224027.622.73$6,187
Jan 2000292025.272.48$7,379
Dec 1999276024.282.42$6,701
Nov 1999293023.192.43$6,795
Oct 1999312020.982.80$6,546
Sep 1999331021.752.62$7,199
Aug 1999340019.262.88$6,548
Jul 1999258017.892.37$4,616
Jun 19990015.942.36$0
May 1999241015.792.32$3,805
Apr 199929015.102.21$438
Mar 1999264012.471.84$3,292
Feb 199919909.981.82$1,986
Jan 1999341010.381.90$3,540
Dec 199817209.201.77$1,582
Nov 1998141010.892.19$1,535
Oct 1998334112.421.97$4,150
Sep 1998174112.592.08$2,193
Aug 1998502111.301.91$5,675
Jul 1998326111.742.24$3,829
Jun 1998348111.242.24$3,914
May 1998353112.622.21$4,457
Apr 1998339113.042.51$4,423
Mar 19980112.802.31$2
Feb 1998140113.952.30$1,955
Jan 19980114.702.15$2
Dec 1997179116.322.41$2,924
Nov 1997162118.193.09$2,950
Oct 1997162119.253.15$3,122
Sep 1997310117.742.95$5,502
Aug 1997150117.862.55$2,682
Jul 1997165117.582.25$2,903
Jun 1997223117.242.26$3,847
May 1997262118.972.31$4,972
Apr 1997256117.882.08$4,579
Mar 1997160118.951.94$3,034
Feb 1997449120.492.21$9,202
Jan 1997171123.483.54$4,019
Dec 1996498123.32$11,613
Nov 19960121.97$0
Oct 1996153123.31$3,566
Sep 1996344122.22$7,644
Aug 1996299120.26$6,058
Jul 1996309119.55$6,041
Jun 1996429118.73$8,035
May 1996174119.43$3,381
Apr 1996257121.51$5,528
Mar 1996284119.38$5,504
Feb 1996306116.98$5,196
Jan 1996478117.07$8,159
Dec 1995348117.19$5,982
Nov 1995276116.00$4,416
Oct 1995347115.43$5,354
Sep 1995481116.18$7,783
Aug 1995315115.92$5,015
Jul 1995172115.24$2,621
Jun 1995329116.41$5,399
May 1995523117.56$9,184
Apr 1995351117.73$6,223
Mar 1995345116.44$5,672
Feb 1995358116.58$5,936
Jan 1995518115.92$8,247
Dec 1994340115.03$5,110
Nov 1994173115.90$2,751
Oct 1994285115.58$4,440
Sep 1994350115.29$5,352
Aug 1994347116.13$5,597
Jul 1994344117.56$6,041
Jun 1994490117.09$8,374
May 1994520115.88$8,258
Apr 1994333114.14$4,709
Mar 1994505112.46$6,292
Feb 1994354112.50$4,425
Jan 1994519112.66$6,571
Dec 1993355112.33$4,377
Nov 1993353114.49$5,115
Oct 1993460115.85$7,291
Sep 1993353115.03$5,306
Aug 1993475115.66$7,439
Jul 1993398115.46$6,153
Jun 1993359116.79$6,028
May 1993179117.68$3,165
Apr 1993353118.05$6,372
Mar 1993356118.14$6,458
Feb 1993538117.90$9,630
Jan 1993499116.93$8,448

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.

Apr 2026 — as filed, then multipliedworked
Oil                  165 bbl  × $ 98.93 =    $16,323
Casinghead gas         0 Mcf  × $  2.87 =         $0

────────────────────────────────────────────────────
Month total                                  $16,323

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/11972 is the state's own key, not one this site invented.