COLUNGA

Operated by TEXAS SECONDARY OIL CORPORATION (P-5 848010) 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 10747District 01Field 84560001OilCasinghead gasSaveExport
Value, all time
$699 k
Jan 1993 – May 2026
Value, last 12 filed months
$29 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
OilDisposition12,821 bbl$699,236
Casinghead gasProduction20 Mcf$0
Total$699,236

20 Mcf of this lease's gas, across 20 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 (8)

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 29.1979, -98.6614. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.2 miles.

29.19794, -98.66146 · 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 8 wells
With a plug date
0.0%
0 of 8 wells
Median depth
1,456 ft
7 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.
8100.0%

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, 7 of 8 wells. Median 1,456 ft, with the middle half between 1,424 and 1,534 ft; the shallowest is 1,400 ft and the deepest 1,560 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, 8 of 8 wells, Jan 1983 – Aug 1985. This is the LAST completion filed on each wellbore, not the first — a well recompleted in 2019 counts once, in the 2010s.

Completions filed
Jan 1983 – Aug 1985
8 of 8 wells

8 wells

42-0133330081,408 ftAug 1985
42-013318097Mar 1983
42-0133181061,440 ftMar 1983
42-0133181331,538 ftFeb 1983
42-0133181541,400 ftFeb 1983
42-0133181921,560 ftFeb 1983
42-0133184151,530 ftFeb 1983
42-0133177811,456 ftJan 1983

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 2026155059.138.00$9,165
Dec 20250056.664.41$0
Nov 20250058.593.93$0
Oct 2025155059.383.30$9,204
Sep 20250062.743.08$0
Aug 20250063.933.01$0
Jul 2025152066.743.32$10,144
Jun 20250066.483.13$0
May 20250060.553.23$0
Apr 2025135062.363.54$8,419
Mar 20250067.704.27$0
Feb 20250070.884.34$0
Jan 20250074.324.28$0
Dec 2024162068.993.12$11,176
Nov 20240069.052.20$0
Oct 20240071.372.28$0
Sep 20240069.612.36$0
Aug 2024150075.632.06$11,345
Jul 20240079.932.15$0
Jun 20240078.082.63$0
May 20240078.812.20$0
Apr 2024146084.451.66$12,330
Mar 20240080.301.55$0
Feb 20240076.091.78$0
Jan 20240073.023.30$0
Dec 20230071.262.61$0
Nov 20230077.892.81$0
Oct 20230085.443.09$0
Sep 2023151089.042.74$13,445
Aug 20230080.522.67$0
Jul 20230074.852.64$0
Jun 20230068.962.26$0
May 20230070.622.23$0
Apr 2023140078.122.24$10,937
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 2022138094.529.13$13,044
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 2021158066.024.22$10,431
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 2021158050.412.81$7,965
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 2019128053.112.30$6,798
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 2019139046.033.23$6,398
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 2018143065.382.90$9,349
Apr 20180063.842.90$0
Mar 20180061.222.79$0
Feb 20180061.782.77$0
Jan 20180062.874.01$0
Dec 20170057.272.92$0
Nov 20170055.423.12$0
Oct 2017143049.292.98$7,048
Sep 20170047.523.09$0
Aug 20170045.373.00$0
Jul 20170043.873.09$0
Jun 2017148042.493.09$6,289
May 20170045.373.26$0
Apr 20170047.933.21$0
Mar 20170046.772.98$0
Feb 2017140050.452.95$7,063
Jan 20170049.413.42$0
Dec 20160048.763.72$0
Nov 20160042.492.64$0
Oct 20160046.193.09$0
Sep 2016163041.553.10$6,773
Aug 20160041.442.92$0
Jul 20160041.622.92$0
Jun 20160045.352.69$0
May 2016166042.521.99$7,058
Apr 20160036.561.99$0
Mar 20160033.011.79$0
Feb 20160026.472.06$0
Jan 2016150027.352.36$4,103
Dec 20150032.362.00$0
Nov 20150038.792.17$0
Oct 20150043.552.43$0
Sep 2015148042.992.76$6,363
Aug 20150040.162.87$0
Jul 20150048.152.95$0
Jun 2015155056.152.88$8,703
May 20150055.212.96$0
Apr 20150049.822.71$0
Mar 20150042.892.93$0
Feb 2015165044.662.98$7,369
Jan 20150043.433.10$0
Dec 20140054.693.59$0
Nov 20140070.464.25$0
Oct 2014163078.303.90$12,763
Sep 20140086.164.05$0
Aug 20140089.394.04$0
Jul 20140096.564.18$0
Jun 20140098.164.74$0
May 2014164094.734.73$15,536
Apr 20140095.944.81$0
Mar 20140095.895.06$0
Feb 20140097.406.19$0
Jan 2014163090.404.86$14,735
Dec 20130091.824.35$0
Nov 20130088.853.74$0
Oct 2013168097.423.78$16,367
Sep 201300104.113.72$0
Aug 201300104.253.52$0
Jul 20131610102.523.72$16,506
Jun 20130094.403.93$0
May 20130094.834.15$0
Apr 20130093.964.28$0
Mar 2013159093.623.91$14,886
Feb 20130091.233.42$0
Jan 20130091.603.42$0
Dec 20120086.773.42$0
Nov 2012177086.953.62$15,390
Oct 20120089.383.40$0
Sep 2012161094.672.92$15,242
Aug 20120092.662.91$0
Jul 20120085.133.02$0
Jun 2012155079.822.52$12,372
May 20120091.612.49$0
Apr 201200101.652.00$0
Mar 20121530105.052.22$16,073
Feb 201200101.102.57$0
Jan 20120098.092.73$0
Dec 20110096.873.24$0
Nov 2011166095.723.31$15,890
Oct 20110084.983.65$0
Sep 20110083.623.99$0
Aug 20110083.404.15$0
Jul 2011155094.144.52$14,592
Jun 20110092.904.64$0
May 20110098.134.40$0
Apr 201100105.964.33$0
Mar 2011145096.364.06$13,972
Feb 20110085.644.18$0
Jan 20110086.504.59$0
Dec 2010168085.734.35$14,403
Nov 20100080.843.80$0
Oct 20100078.103.51$0
Sep 20100072.633.98$0
Aug 20100073.684.42$0
Jul 20100072.554.74$0
Jun 2010162070.364.91$11,398
May 20100071.124.24$0
Apr 2010161081.694.12$13,152
Mar 20100078.394.39$0
Feb 20100073.585.44$0
Jan 2010169074.365.96$12,567
Dec 20090071.445.48$0
Nov 20090074.593.75$0
Oct 20090072.544.11$0
Sep 2009160065.543.06$10,486
Aug 20090067.423.22$0
Jul 20090061.133.46$0
Jun 2009162066.163.90$10,718
May 20090054.743.93$0
Apr 20090046.773.59$0
Mar 2009158042.144.06$6,658
Feb 20090032.814.63$0
Jan 2009170035.865.37$6,096
Dec 20080037.105.98$0
Nov 20080055.496.86$0
Oct 2008157075.246.92$11,813
Sep 200800101.767.88$0
Aug 20081620114.228.48$18,504
Jul 200800131.0811.39$0
Jun 20081650131.3313.03$21,669
May 200800123.1711.57$0
Apr 20081620110.3110.45$17,870
Mar 200800101.909.66$0
Feb 20080092.538.77$0
Jan 20080090.388.21$0
Dec 20070088.337.30$0
Nov 2007148091.677.29$13,567
Oct 20070082.856.92$0
Sep 20070075.846.24$0
Aug 20070069.066.39$0
Jul 20070070.906.39$0
Jun 20070062.007.55$0
May 20070058.747.85$0
Apr 20070059.617.81$0
Mar 20070056.927.30$0
Feb 2007160055.108.22$8,816
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 2006158068.717.34$10,856
Jul 20065069.376.34$347
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 2006151060.598.93$9,149
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 2005168049.207.36$8,266
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 2004152043.245.28$6,572
Aug 20040042.375.55$0
Jul 20040038.286.08$0
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 2004162032.036.30$5,189
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 20030026.595.97$0
Apr 20030026.675.41$0
Mar 2003163031.146.10$5,076
Feb 20033033.487.93$100
Jan 20030030.315.58$0
Dec 20020026.914.85$0
Nov 20020024.664.14$0
Oct 20020026.464.23$0
Sep 20020027.443.64$0
Aug 20020025.963.16$0
Jul 2002161024.583.06$3,957
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 20020017.172.38$0
Dec 20010016.932.36$0
Nov 20010018.072.41$0
Oct 20010019.782.53$0
Sep 20010024.262.25$0
Aug 20010024.873.05$0
Jul 2001175023.933.20$4,188
Jun 20010024.563.82$0
May 20010025.524.31$0
Apr 20010024.685.34$0
Mar 20010024.545.38$0
Feb 20010027.755.77$0
Jan 20010027.478.40$0
Dec 20000026.889.12$0
Nov 20000032.215.66$0
Oct 20000031.235.15$0
Sep 2000164031.875.19$5,227
Aug 20000029.644.54$0
Jul 20000028.534.09$0
Jun 20000029.304.40$0
May 20000027.263.68$0
Apr 20000024.513.12$0
Mar 2000140028.422.86$3,979
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 1999159021.752.62$3,458
Aug 19990019.262.88$0
Jul 19990017.892.37$0
Jun 19990015.942.36$0
May 19990015.792.32$0
Apr 1999163015.102.21$2,461
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 1998170012.421.97$2,111
Sep 1998156012.592.08$1,964
Aug 199810011.301.91$113
Jul 19980011.742.24$0
Jun 19980011.242.24$0
May 1998161012.622.21$2,032
Apr 19980013.042.51$0
Mar 19980012.802.31$0
Feb 19980013.952.30$0
Jan 1998177014.702.15$2,602
Dec 19970016.322.41$0
Nov 19970018.193.09$0
Oct 1997159019.253.15$3,061
Sep 19970017.742.95$0
Aug 1997134017.862.55$2,393
Jul 1997132017.582.25$2,321
Jun 19970017.242.26$0
May 19970018.972.31$0
Apr 199758017.882.08$1,037
Mar 1997136018.951.94$2,577
Feb 19970020.492.21$0
Jan 19970023.483.54$0
Dec 19960023.32$0
Nov 19960021.97$0
Oct 1996144023.31$3,357
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 1996145017.07$2,475
Dec 19950017.19$0
Nov 19950016.00$0
Oct 19950015.43$0
Sep 19950016.18$0
Aug 19950015.92$0
Jul 1995117015.24$1,783
Jun 19950016.41$0
May 199542017.56$738
Apr 19950017.73$0
Mar 19950016.44$0
Feb 19950016.58$0
Jan 19950015.92$0
Dec 19940015.03$0
Nov 19940015.90$0
Oct 19940015.58$0
Sep 19940015.29$0
Aug 1994158116.13$2,549
Jul 19940117.56$0
Jun 19940117.09$0
May 19940115.88$0
Apr 19940114.14$0
Mar 1994152112.46$1,894
Feb 19940112.50$0
Jan 1994155112.66$1,962
Dec 19930112.33$0
Nov 19930114.49$0
Oct 19930115.85$0
Sep 1993154115.03$2,315
Aug 1993140115.66$2,192
Jul 19930115.46$0
Jun 19930116.79$0
May 1993147117.68$2,599
Apr 1993147118.05$2,653
Mar 19930118.14$0
Feb 19930117.90$0
Jan 1993161116.93$2,726

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.

Jan 2026 — as filed, then multipliedworked
Oil                  155 bbl  × $ 59.13 =     $9,165
Casinghead gas         0 Mcf  × $  8.00 =         $0

────────────────────────────────────────────────────
Month total                                   $9,165

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/10747 is the state's own key, not one this site invented.