COX

Operated by SIMATA ENERGY, LLC (P-5 781975) in the COLEMAN RANCH field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 26541District 08Field 19541001Hydrogen sulphide fieldOilCasinghead gasSaveExport
Value, all time
$876 k
Jan 1993 – May 2026
Value, last 12 filed months
$41 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 54 leases and 388 wells, and the rule below applies to all of them.

Discovered
1946-09-10
as the register files it
Field class
Oil
the register's own label
Between wells
579 ft
minimum
From a lease line
330 ft
minimum

A drilling unit in this field needs at least 10 acres.

The register flags this field for hydrogen sulphide. That is a poisonous gas that occurs naturally in some formations. The flag is a property of the field as the Commission records it. It is not a measurement taken at this lease, and it is not a statement that gas is escaping anywhere.

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
OilDisposition16,202 bbl$875,593
Casinghead gasProduction21 Mcf$0
Total$875,593

21 Mcf of this lease's gas, across 21 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 32.5044, -101.0675. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.0 miles.

32.50445, -101.06751 · 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
2,912 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 2,912 ft.

Completions filed
Mar 1981
1 of 1 wells

1 well

42-3353193012,912 ftMar 1981

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 2026185098.932.87$18,302
Mar 20260089.753.15$0
Feb 20260063.503.75$0
Jan 2026182059.138.00$10,762
Dec 20250056.664.41$0
Nov 20250058.593.93$0
Oct 20250059.383.30$0
Sep 20250062.743.08$0
Aug 2025182063.933.01$11,635
Jul 20250066.743.32$0
Jun 20250066.483.13$0
May 20250060.553.23$0
Apr 2025172062.363.54$10,726
Mar 20250067.704.27$0
Feb 20250070.884.34$0
Jan 20250074.324.28$0
Dec 20240068.993.12$0
Nov 20240069.052.20$0
Oct 2024183071.372.28$13,061
Sep 20240069.612.36$0
Aug 20240075.632.06$0
Jul 20240079.932.15$0
Jun 2024183078.082.63$14,289
May 20240078.812.20$0
Apr 20240084.451.66$0
Mar 2024187080.301.55$15,016
Feb 20240076.091.78$0
Jan 20240073.023.30$0
Dec 20230071.262.61$0
Nov 2023184077.892.81$14,332
Oct 20230085.443.09$0
Sep 20230089.042.74$0
Aug 20230080.522.67$0
Jul 2023162074.852.64$12,126
Jun 20230068.962.26$0
May 20230070.622.23$0
Apr 2023182078.122.24$14,218
Mar 20230072.852.39$0
Feb 20230075.112.47$0
Jan 20230076.533.39$0
Dec 2022181076.415.73$13,830
Nov 20220085.005.65$0
Oct 20220087.185.86$0
Sep 20220084.888.16$0
Aug 2022180094.529.13$17,014
Jul 202200101.587.54$0
Jun 202200115.097.98$0
May 202200109.378.43$0
Apr 20221740104.226.84$18,134
Mar 202200108.885.08$0
Feb 20220091.054.86$0
Jan 2022133081.844.54$10,885
Dec 20210071.323.90$0
Nov 20210077.435.24$0
Oct 2021151079.795.71$12,048
Sep 20210069.865.35$0
Aug 20210066.024.22$0
Jul 2021139070.783.98$9,838
Jun 20210069.493.38$0
May 2021134063.483.02$8,506
Apr 20210060.362.76$0
Mar 20210061.302.72$0
Feb 2021151057.805.55$8,728
Jan 20210050.412.81$0
Dec 20200044.642.68$0
Nov 2020150038.772.71$5,816
Oct 20200036.972.48$0
Sep 20200037.091.99$0
Aug 2020131039.982.39$5,237
Jul 20200038.371.83$0
Jun 2020156034.901.69$5,444
May 20200016.921.81$0
Apr 20200014.751.80$0
Mar 2020147030.341.86$4,460
Feb 20200049.881.98$0
Jan 20200057.252.09$0
Dec 2019170059.012.30$10,032
Nov 20190055.302.75$0
Oct 20190053.472.42$0
Sep 2019182055.052.66$10,019
Aug 20190053.112.30$0
Jul 20190056.272.46$0
Jun 20190052.782.49$0
May 2019156058.482.74$9,123
Apr 20190062.632.75$0
Mar 20190056.803.06$0
Feb 2019152050.852.79$7,729
Jan 20190046.033.23$0
Dec 20180046.594.19$0
Nov 2018163052.934.24$8,628
Oct 20180061.443.40$0
Sep 20180059.543.11$0
Aug 20180059.403.07$0
Jul 2018160065.142.93$10,422
Jun 20180060.183.08$0
May 20180065.382.90$0
Apr 2018149063.842.90$9,512
Mar 20180061.222.79$0
Feb 20180061.782.77$0
Jan 2018154062.874.01$9,682
Dec 20170057.272.92$0
Nov 20170055.423.12$0
Oct 20170049.292.98$0
Sep 2017155047.523.09$7,366
Aug 20170045.373.00$0
Jul 20170043.873.09$0
Jun 2017154042.493.09$6,543
May 20170045.373.26$0
Apr 20170047.933.21$0
Mar 2017155046.772.98$7,249
Feb 20170050.452.95$0
Jan 20170049.413.42$0
Dec 20160048.763.72$0
Nov 2016156042.492.64$6,628
Oct 20160046.193.09$0
Sep 20160041.553.10$0
Aug 20160041.442.92$0
Jul 2016146041.622.92$6,077
Jun 20160045.352.69$0
May 20160042.521.99$0
Apr 20160036.561.99$0
Mar 2016164033.011.79$5,414
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 2015168042.892.93$7,206
Feb 20150044.662.98$0
Jan 20150043.433.10$0
Dec 20140054.693.59$0
Nov 2014168070.464.25$11,837
Oct 20140078.303.90$0
Sep 20140086.164.05$0
Aug 2014161089.394.04$14,392
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 2014163097.406.19$15,876
Jan 20140090.404.86$0
Dec 20130091.824.35$0
Nov 20130088.853.74$0
Oct 2013165097.423.78$16,074
Sep 201300104.113.72$0
Aug 20131630104.253.52$16,993
Jul 201300102.523.72$0
Jun 20130094.403.93$0
May 20130094.834.15$0
Apr 2013163093.964.28$15,315
Mar 20130093.623.91$0
Feb 20130091.233.42$0
Jan 2013165091.603.42$15,114
Dec 20120086.773.42$0
Nov 20120086.953.62$0
Oct 2012164089.383.40$14,658
Sep 20120094.672.92$0
Aug 20120092.662.91$0
Jul 20120085.133.02$0
Jun 2012155079.822.52$12,372
May 20120091.612.49$0
Apr 20121760101.652.00$17,890
Mar 201200105.052.22$0
Feb 201200101.102.57$0
Jan 2012157098.092.73$15,400
Dec 20110096.873.24$0
Nov 20110095.723.31$0
Oct 20110084.983.65$0
Sep 20110083.623.99$0
Aug 2011146083.404.15$12,176
Jul 20110094.144.52$0
Jun 20110092.904.64$0
May 20110098.134.40$0
Apr 20111490105.964.33$15,788
Mar 20110096.364.06$0
Feb 20110085.644.18$0
Jan 2011158086.504.59$13,667
Dec 20100085.734.35$0
Nov 2010154080.843.80$12,449
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 20100081.694.12$0
Mar 2010154078.394.39$12,072
Feb 20100073.585.44$0
Jan 20100074.365.96$0
Dec 20090071.445.48$0
Nov 20090074.593.75$0
Oct 2009158072.544.11$11,461
Sep 20090065.543.06$0
Aug 20090067.423.22$0
Jul 20090061.133.46$0
Jun 2009156066.163.90$10,321
May 20090054.743.93$0
Apr 20090046.773.59$0
Mar 2009153042.144.06$6,447
Feb 20090032.814.63$0
Jan 20090035.865.37$0
Dec 20080037.105.98$0
Nov 2008145055.496.86$8,046
Oct 20080075.246.92$0
Sep 200800101.767.88$0
Aug 200800114.228.48$0
Jul 20081520131.0811.39$19,924
Jun 200800131.3313.03$0
May 200800123.1711.57$0
Apr 200800110.3110.45$0
Mar 200800101.909.66$0
Feb 2008146092.538.77$13,509
Jan 20080090.388.21$0
Dec 20070088.337.30$0
Nov 20070091.677.29$0
Oct 2007114082.856.92$9,445
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 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 200640060.085.04$2,403
Aug 20060068.717.34$0
Jul 2006115069.376.34$7,978
Jun 20060066.286.38$0
May 20060066.016.42$0
Apr 200654064.397.36$3,477
Mar 2006147056.707.08$8,335
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 2005115061.4512.08$7,067
Aug 20050061.519.80$0
Jul 200548055.697.84$2,673
Jun 20050052.337.38$0
May 20050045.226.65$0
Apr 200567049.207.36$3,296
Mar 20050050.377.15$0
Feb 200573045.226.31$3,301
Jan 2005152043.166.32$6,560
Dec 20040039.866.75$0
Nov 20040045.286.33$0
Oct 20040049.706.52$0
Sep 20040043.245.28$0
Aug 2004133042.375.55$5,635
Jul 20040038.286.08$0
Jun 20040036.106.43$0
May 200441037.486.49$1,537
Apr 200462034.475.86$2,137
Mar 200496034.365.53$3,299
Feb 20040032.455.51$0
Jan 20040032.036.30$0
Dec 2003152030.266.30$4,600
Nov 20030028.804.60$0
Oct 20030028.174.76$0
Sep 200373026.314.75$1,921
Aug 20030029.765.13$0
Jul 20030029.415.17$0
Jun 200378028.565.98$2,228
May 20030026.595.97$0
Apr 2003150026.675.41$4,001
Mar 20030031.146.10$0
Feb 20030033.487.93$0
Jan 2003131030.315.58$3,971
Dec 20020026.914.85$0
Nov 20020024.664.14$0
Oct 20020026.464.23$0
Sep 200263027.443.64$1,729
Aug 20020025.963.16$0
Jul 200280024.583.06$1,966
Jun 20020023.733.34$0
May 2002128024.663.58$3,156
Apr 20020023.653.51$0
Mar 20020022.003.10$0
Feb 200273018.222.38$1,330
Jan 20020017.172.38$0
Dec 2001113016.932.36$1,913
Nov 20010018.072.41$0
Oct 20010019.782.53$0
Sep 200192024.262.25$2,232
Aug 20010024.873.05$0
Jul 200177023.933.20$1,843
Jun 20010024.563.82$0
May 200163025.524.31$1,608
Apr 2001100024.685.34$2,468
Mar 20010024.545.38$0
Feb 20010027.755.77$0
Jan 200193027.478.40$2,555
Dec 200086026.889.12$2,312
Nov 20000032.215.66$0
Oct 20000031.235.15$0
Sep 2000136031.875.19$4,334
Aug 20000029.644.54$0
Jul 20000028.534.09$0
Jun 2000100029.304.40$2,930
May 20000027.263.68$0
Apr 20000024.513.12$0
Mar 20000028.422.86$0
Feb 20000027.622.73$0
Jan 20000025.272.48$0
Dec 1999150024.282.42$3,642
Nov 19990023.192.43$0
Oct 19990020.982.80$0
Sep 1999147021.752.62$3,197
Aug 19990019.262.88$0
Jul 19990017.892.37$0
Jun 19990015.942.36$0
May 1999152015.792.32$2,400
Apr 19990015.102.21$0
Mar 19990012.471.84$0
Feb 1999009.981.82$0
Jan 1999150010.381.90$1,557
Dec 1998009.201.77$0
Nov 19980010.892.19$0
Oct 19980012.421.97$0
Sep 199898012.592.08$1,234
Aug 19980011.301.91$0
Jul 1998147011.742.24$1,726
Jun 19980011.242.24$0
May 19980012.622.21$0
Apr 1998165013.042.51$2,152
Mar 19980012.802.31$0
Feb 19980013.952.30$0
Jan 19980014.702.15$0
Dec 199783016.322.41$1,355
Nov 19970018.193.09$0
Oct 19970019.253.15$0
Sep 199785017.742.95$1,508
Aug 19970017.862.55$0
Jul 1997156017.582.25$2,742
Jun 19970017.242.26$0
May 199766018.972.31$1,252
Apr 19970017.882.08$0
Mar 19970018.951.94$0
Feb 199797020.492.21$1,988
Jan 19970023.483.54$0
Dec 199699023.32$2,309
Nov 19960021.97$0
Oct 1996153023.31$3,566
Sep 19960022.22$0
Aug 19960020.26$0
Jul 19960019.55$0
Jun 199678018.73$1,461
May 199651019.43$991
Apr 19960021.51$0
Mar 1996112019.38$2,171
Feb 19960016.98$0
Jan 19960017.07$0
Dec 1995129017.19$2,218
Nov 19950016.00$0
Oct 199570015.43$1,080
Sep 19950016.18$0
Aug 1995138015.92$2,197
Jul 19950015.24$0
Jun 19950016.41$0
May 19950017.56$0
Apr 19950017.73$0
Mar 19950016.44$0
Feb 19950016.58$0
Jan 199582015.92$1,305
Dec 19940015.03$0
Nov 199465015.90$1,034
Oct 19940015.58$0
Sep 199482115.29$1,254
Aug 199465116.13$1,048
Jul 19940117.56$0
Jun 19940117.09$0
May 199488115.88$1,397
Apr 19940114.14$0
Mar 199481112.46$1,009
Feb 19940112.50$0
Jan 199494112.66$1,190
Dec 19930112.33$0
Nov 1993120114.49$1,739
Oct 19930115.85$0
Sep 19930115.03$0
Aug 199391115.66$1,425
Jul 19930115.46$0
Jun 199380116.79$1,343
May 19930117.68$0
Apr 199396118.05$1,733
Mar 19930118.14$0
Feb 199377117.90$1,378
Jan 19930116.93$0

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                  185 bbl  × $ 98.93 =    $18,302
Casinghead gas         0 Mcf  × $  2.87 =         $0

────────────────────────────────────────────────────
Month total                                  $18,302

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. 08/O/26541 is the state's own key, not one this site invented.