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WOLBERT

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 27163District 08Field 19541001Hydrogen sulphide fieldOilCasinghead gasSaveExport
Value, all time
$529 k
Jan 1993 – May 2026
Value, last 12 filed months
$11 k
at the published price for each month
Months reported
401
no gaps in the span
Streams
2
oil, casinghead gas

The COLEMAN RANCH field

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
OilDisposition12,748 bbl$529,409
Casinghead gasProduction21 Mcf$0
Total$529,409

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 (2)

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 32.5053, -101.0718. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.1 miles.

32.50526, -101.07176 · 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
50.0%
1 of 2 wells
With a plug date
50.0%
1 of 2 wells
Median depth
2,946 ft
2 wells filed one
Completion to plug
20.0 years
median over 1 well

What the state filed about each well

On the RRC proration schedule
150.0%
A plug date is filed
150.0%
BothOn the schedule and plugged. Neither fact cancels the other.
150.0%
NeitherNo plug date, and not on the schedule.
150.0%

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 2,933 and 2,959 ft, median 2,946 ft, over the 2 wells that filed a depth.

Completions filed
Jan 1982 – Aug 1982
2 of 2 wells
Plug dates filed
Jan 2002
1 of 2 wells; 1 filed none

Last completion to plug: a median of 20.0 years across the 1 well that filed both dates, with the middle half between 20.0 years and 20.0 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

2 wells

42-3353230222,933 ftAug 1982——
42-3353193112,959 ftJan 1982Jan 2002Yes

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 2025189059.383.30$11,223
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 2025188067.704.27$12,728
Feb 20250070.884.34$0
Jan 20250074.324.28$0
Dec 20240068.993.12$0
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 2024178078.082.63$13,898
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 2023186077.892.81$14,488
Oct 20230085.443.09$0
Sep 20230089.042.74$0
Aug 20230080.522.67$0
Jul 20230074.852.64$0
Jun 20230068.962.26$0
May 20230070.622.23$0
Apr 20230078.122.24$0
Mar 2023179072.852.39$13,040
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 2022182084.888.16$15,448
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 2021160077.435.24$12,389
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 2021130063.483.02$8,252
Apr 20210060.362.76$0
Mar 20210061.302.72$0
Feb 20210057.805.55$0
Jan 20210050.412.81$0
Dec 2020141044.642.68$6,294
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 2020161034.901.69$5,619
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 2019141055.302.75$7,797
Oct 20190053.472.42$0
Sep 20190055.052.66$0
Aug 20190053.112.30$0
Jul 20190056.272.46$0
Jun 2019154052.782.49$8,128
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 2018147052.934.24$7,781
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 2018147063.842.90$9,384
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 20170049.292.98$0
Sep 2017157047.523.09$7,461
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 2017165049.413.42$8,153
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 2016163033.011.79$5,381
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 20140086.164.05$0
Aug 20140089.394.04$0
Jul 20140096.564.18$0
Jun 20140098.164.74$0
May 20140094.734.73$0
Apr 20140095.944.81$0
Mar 20140095.895.06$0
Feb 20140097.406.19$0
Jan 20140090.404.86$0
Dec 20130091.824.35$0
Nov 20130088.853.74$0
Oct 20130097.423.78$0
Sep 201300104.113.72$0
Aug 201300104.253.52$0
Jul 201300102.523.72$0
Jun 20130094.403.93$0
May 20130094.834.15$0
Apr 20130093.964.28$0
Mar 20130093.623.91$0
Feb 20130091.233.42$0
Jan 20130091.603.42$0
Dec 20121086.773.42$87
Nov 20121086.953.62$87
Oct 2012143089.383.40$12,781
Sep 20120094.672.92$0
Aug 20120092.662.91$0
Jul 20120085.133.02$0
Jun 2012161079.822.52$12,851
May 20120091.612.49$0
Apr 201200101.652.00$0
Mar 201200105.052.22$0
Feb 20121430101.102.57$14,457
Jan 20120098.092.73$0
Dec 20110096.873.24$0
Nov 20110095.723.31$0
Oct 20110084.983.65$0
Sep 20110083.623.99$0
Aug 2011150083.404.15$12,510
Jul 20110094.144.52$0
Jun 20110092.904.64$0
May 20110098.134.40$0
Apr 20111540105.964.33$16,318
Mar 20110096.364.06$0
Feb 20110085.644.18$0
Jan 20110086.504.59$0
Dec 20100085.734.35$0
Nov 2010142080.843.80$11,479
Oct 20100078.103.51$0
Sep 20100072.633.98$0
Aug 20100073.684.42$0
Jul 2010157072.554.74$11,390
Jun 20100070.364.91$0
May 20100071.124.24$0
Apr 2010168081.694.12$13,724
Mar 20100078.394.39$0
Feb 20100073.585.44$0
Jan 20100074.365.96$0
Dec 20090071.445.48$0
Nov 20090074.593.75$0
Oct 2009152072.544.11$11,026
Sep 20090065.543.06$0
Aug 20090067.423.22$0
Jul 20090061.133.46$0
Jun 2009150066.163.90$9,924
May 20090054.743.93$0
Apr 20090046.773.59$0
Mar 20090042.144.06$0
Feb 2009151032.814.63$4,954
Jan 20090035.865.37$0
Dec 20080037.105.98$0
Nov 20080055.496.86$0
Oct 20080075.246.92$0
Sep 20081460101.767.88$14,857
Aug 200800114.228.48$0
Jul 200800131.0811.39$0
Jun 20081490131.3313.03$19,568
May 200800123.1711.57$0
Apr 200800110.3110.45$0
Mar 200800101.909.66$0
Feb 20080092.538.77$0
Jan 2008120090.388.21$10,846
Dec 20070088.337.30$0
Nov 20070091.677.29$0
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 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 2006107060.085.04$6,429
Aug 20060068.717.34$0
Jul 200632069.376.34$2,220
Jun 20060066.286.38$0
May 20060066.016.42$0
Apr 200696064.397.36$6,181
Mar 20060056.707.08$0
Feb 20060057.597.75$0
Jan 2006146060.598.93$8,846
Dec 20050054.9413.42$0
Nov 20050054.6910.59$0
Oct 20050058.3413.80$0
Sep 200543061.4512.08$2,642
Aug 20050061.519.80$0
Jul 2005101055.697.84$5,625
Jun 20050052.337.38$0
May 20050045.226.65$0
Apr 200589049.207.36$4,379
Mar 20050050.377.15$0
Feb 200571045.226.31$3,211
Jan 20050043.166.32$0
Dec 20040039.866.75$0
Nov 20040045.286.33$0
Oct 200458049.706.52$2,883
Sep 20040043.245.28$0
Aug 2004134042.375.55$5,678
Jul 20040038.286.08$0
Jun 20040036.106.43$0
May 20040037.486.49$0
Apr 20040034.475.86$0
Mar 200466034.365.53$2,268
Feb 20040032.455.51$0
Jan 200469032.036.30$2,210
Dec 200357030.266.30$1,725
Nov 20030028.804.60$0
Oct 200344028.174.76$1,239
Sep 200373026.314.75$1,921
Aug 20030029.765.13$0
Jul 20030029.415.17$0
Jun 200372028.565.98$2,056
May 20030026.595.97$0
Apr 200394026.675.41$2,507
Mar 20030031.146.10$0
Feb 20030033.487.93$0
Jan 200382030.315.58$2,485
Dec 20020026.914.85$0
Nov 200289024.664.14$2,195
Oct 20020026.464.23$0
Sep 20020027.443.64$0
Aug 200237025.963.16$961
Jul 2002156024.583.06$3,834
Jun 20020023.733.34$0
May 20020024.663.58$0
Apr 20020023.653.51$0
Mar 20020022.003.10$0
Feb 200279018.222.38$1,439
Jan 20020017.172.38$0
Dec 2001107016.932.36$1,812
Nov 20010018.072.41$0
Oct 20010019.782.53$0
Sep 2001131024.262.25$3,178
Aug 20010024.873.05$0
Jul 20010023.933.20$0
Jun 20010024.563.82$0
May 200193025.524.31$2,373
Apr 200142024.685.34$1,037
Mar 20010024.545.38$0
Feb 20010027.755.77$0
Jan 200161027.478.40$1,676
Dec 200077026.889.12$2,070
Nov 20000032.215.66$0
Oct 20000031.235.15$0
Sep 200041031.875.19$1,307
Aug 200040029.644.54$1,186
Jul 2000101028.534.09$2,882
Jun 20000029.304.40$0
May 20000027.263.68$0
Apr 2000100024.513.12$2,451
Mar 2000109028.422.86$3,098
Feb 2000153027.622.73$4,226
Jan 20000025.272.48$0
Dec 19990024.282.42$0
Nov 19990023.192.43$0
Oct 19990020.982.80$0
Sep 199976021.752.62$1,653
Aug 1999151019.262.88$2,908
Jul 19990017.892.37$0
Jun 19990015.942.36$0
May 19990015.792.32$0
Apr 19990015.102.21$0
Mar 1999152012.471.84$1,895
Feb 1999009.981.82$0
Jan 19990010.381.90$0
Dec 1998009.201.77$0
Nov 19980010.892.19$0
Oct 199847012.421.97$584
Sep 199853012.592.08$667
Aug 19980011.301.91$0
Jul 1998113011.742.24$1,327
Jun 19980011.242.24$0
May 19980012.622.21$0
Apr 199871013.042.51$926
Mar 199836012.802.31$461
Feb 199874013.952.30$1,032
Jan 19980014.702.15$0
Dec 19970016.322.41$0
Nov 1997160018.193.09$2,910
Oct 19970019.253.15$0
Sep 19970017.742.95$0
Aug 19970017.862.55$0
Jul 199775017.582.25$1,319
Jun 19970017.242.26$0
May 199794018.972.31$1,783
Apr 19970017.882.08$0
Mar 19970018.951.94$0
Feb 199793020.492.21$1,906
Jan 19970023.483.54$0
Dec 199690023.32—$2,099
Nov 19960021.97—$0
Oct 1996140023.31—$3,263
Sep 1996155022.22—$3,444
Aug 19960020.26—$0
Jul 199637019.55—$723
Jun 199678018.73—$1,461
May 1996159019.43—$3,089
Apr 199660021.51—$1,291
Mar 199660019.38—$1,163
Feb 199665016.98—$1,104
Jan 199684017.07—$1,434
Dec 199583017.19—$1,427
Nov 199590016.00—$1,440
Oct 199587015.43—$1,342
Sep 199573016.18—$1,181
Aug 199567015.92—$1,067
Jul 199569015.24—$1,052
Jun 199554016.41—$886
May 1995133017.56—$2,335
Apr 199570017.73—$1,241
Mar 199527016.44—$444
Feb 199597016.58—$1,608
Jan 199580015.92—$1,274
Dec 199459015.03—$887
Nov 199494015.90—$1,495
Oct 199475015.58—$1,169
Sep 199475115.29—$1,147
Aug 199477116.13—$1,242
Jul 199489117.56—$1,563
Jun 199474117.09—$1,265
May 199485115.88—$1,350
Apr 199486114.14—$1,216
Mar 199487112.46—$1,084
Feb 199491112.50—$1,138
Jan 1994155112.66—$1,962
Dec 19930112.33—$0
Nov 199380114.49—$1,159
Oct 199381115.85—$1,284
Sep 199386115.03—$1,293
Aug 1993110115.66—$1,723
Jul 199367115.46—$1,036
Jun 199386116.79—$1,444
May 199381117.68—$1,432
Apr 199390118.05—$1,625
Mar 199385118.14—$1,542
Feb 199391117.90—$1,629
Jan 199385116.93—$1,439

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.

Oct 2025 — as filed, then multipliedworked
Oil                  189 bbl  × $ 59.38 =    $11,223
Casinghead gas         0 Mcf  × $  3.30 =         $0

────────────────────────────────────────────────────
Month total                                  $11,223

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/27163 is the state's own key, not one this site invented.