LAMMERTS

Operated by INEOS USA OIL & GAS LLC (P-5 424176) in the PEARSALL (AUSTIN CHALK) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 5478District 01Field 69981125OilCasinghead gasSaveExport
Value, all time
$443 k
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 1,992 leases and 3,388 wells, and the rule below applies to all of them.

Discovered
1936-12-28
as the register files it
Field class
Oil and gas
the register's own label
Between wells
0 ft
minimum
From a lease line
330 ft
minimum

A drilling unit in this field needs at least 80 acres. The field rule took effect on 2025-06-17.

The Commission's schedule remark for this field reads: LEASE PLAT. PRORATION PLAT IS NOT REQUIRED.

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
OilDisposition21,417 bbl$435,075
Casinghead gasProduction8,503 Mcf$7,628
Total$442,703

6,715 Mcf of this lease's gas, across 47 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 28.6265, -99.3003. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.5 miles.

28.62651, -99.30029 · 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
9,185 ft
2 wells filed one
Completion to plug
35.0 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 7,535 and 10,834 ft, median 9,185 ft, over the 2 wells that filed a depth.

Completions filed
Sep 1977 – Dec 1990
2 of 2 wells
Plug dates filed
Sep 2012
1 of 2 wells; 1 filed none

Last completion to plug: a median of 35.0 years across the 1 well that filed both dates, with the middle half between 35.0 years and 35.0 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

2 wells

42-283313801H10,834 ftDec 1990
42-2833058317,535 ftSep 1977Sep 2012Yes

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 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 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 20230077.892.81$0
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 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 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 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 20180062.874.01$0
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 20170049.413.42$0
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 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 20120086.773.42$0
Nov 20120086.953.62$0
Oct 20120089.383.40$0
Sep 20120094.672.92$0
Aug 20120092.662.91$0
Jul 20120085.133.02$0
Jun 20120079.822.52$0
May 20120091.612.49$0
Apr 201200101.652.00$0
Mar 201200105.052.22$0
Feb 201200101.102.57$0
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 20110083.404.15$0
Jul 20110094.144.52$0
Jun 20110092.904.64$0
May 20110098.134.40$0
Apr 201100105.964.33$0
Mar 20110096.364.06$0
Feb 20110085.644.18$0
Jan 20110086.504.59$0
Dec 20100085.734.35$0
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 20100070.364.91$0
May 20100071.124.24$0
Apr 20100081.694.12$0
Mar 20100078.394.39$0
Feb 201031073.585.44$2,281
Jan 20100074.365.96$0
Dec 20090071.445.48$0
Nov 20090074.593.75$0
Oct 20090072.544.11$0
Sep 2009017365.543.06$530
Aug 2009021467.423.22$689
Jul 200928412661.133.46$17,797
Jun 20090066.163.90$0
May 2009030854.743.93$1,209
Apr 2009018946.773.59$678
Mar 2009012142.144.06$491
Feb 2009013232.814.63$612
Jan 200908635.865.37$462
Dec 2008041137.105.98$2,457
Nov 20080055.496.86$0
Oct 20080075.246.92$0
Sep 200800101.767.88$0
Aug 200800114.228.48$0
Jul 200800131.0811.39$0
Jun 200800131.3313.03$0
May 200800123.1711.57$0
Apr 200800110.3110.45$0
Mar 200800101.909.66$0
Feb 20080092.538.77$0
Jan 20080090.388.21$0
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 2007145058.747.85$8,517
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 2006130054.906.01$7,137
Sep 20060060.085.04$0
Aug 20060068.717.34$0
Jul 20060069.376.34$0
Jun 20060066.286.38$0
May 20060066.016.42$0
Apr 20060064.397.36$0
Mar 20060056.707.08$0
Feb 2006129057.597.75$7,429
Jan 20060060.598.93$0
Dec 20050054.9413.42$0
Nov 2005149054.6910.59$8,149
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 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 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 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 20030026.595.97$0
Apr 2003354026.675.41$9,441
Mar 20030031.146.10$0
Feb 200396033.487.93$3,214
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 2002168024.583.06$4,129
Jun 2002170023.733.34$4,034
May 2002159024.663.58$3,921
Apr 2002180023.653.51$4,257
Mar 20020022.003.10$0
Feb 2002177018.222.38$3,225
Jan 2002184017.172.38$3,159
Dec 2001188016.932.36$3,183
Nov 2001179018.072.41$3,235
Oct 20010019.782.53$0
Sep 20010024.262.25$0
Aug 20010024.873.05$0
Jul 20010023.933.20$0
Jun 2001185024.563.82$4,544
May 20010025.524.31$0
Apr 2001159024.685.34$3,924
Mar 20010024.545.38$0
Feb 2001150027.755.77$4,163
Jan 2001155027.478.40$4,258
Dec 20000026.889.12$0
Nov 2000180032.215.66$5,798
Oct 2000312031.235.15$9,744
Sep 2000181031.875.19$5,768
Aug 20000029.644.54$0
Jul 2000182028.534.09$5,192
Jun 20000029.304.40$0
May 2000166027.263.68$4,525
Apr 2000157024.513.12$3,848
Mar 2000157028.422.86$4,462
Feb 2000310027.622.73$8,562
Jan 2000476025.272.48$12,029
Dec 1999527024.282.42$12,796
Nov 19990023.192.43$0
Oct 19990020.982.80$0
Sep 19990021.752.62$0
Aug 1999162019.262.88$3,120
Jul 19990017.892.37$0
Jun 1999157015.942.36$2,503
May 19990015.792.32$0
Apr 19990115.102.21$2
Mar 1999167112.471.84$2,084
Feb 1999019.981.82$2
Jan 1999335110.381.90$3,479
Dec 199833119.201.77$3,047
Nov 19980110.892.19$2
Oct 19980112.421.97$2
Sep 19980112.592.08$2
Aug 19980111.301.91$2
Jul 1998118111.742.24$1,388
Jun 19980111.242.24$2
May 19980112.622.21$2
Apr 19980113.042.51$3
Mar 1998182112.802.31$2,332
Feb 1998175113.952.30$2,444
Jan 1998352114.702.15$5,177
Dec 1997123116.322.41$2,010
Nov 19970118.193.09$3
Oct 1997162119.253.15$3,122
Sep 1997297117.742.95$5,272
Aug 1997122117.862.55$2,181
Jul 1997311117.582.25$5,470
Jun 19970117.242.26$2
May 1997192118.972.31$3,645
Apr 19970117.882.08$2
Mar 1997313118.951.94$5,933
Feb 19970120.492.21$2
Jan 1997189123.483.54$4,441
Dec 1996180123.32$4,198
Nov 1996188121.97$4,130
Oct 1996180123.31$4,196
Sep 1996164122.22$3,644
Aug 1996190120.26$3,849
Jul 1996347119.55$6,784
Jun 1996168118.73$3,147
May 1996180119.43$3,497
Apr 1996161121.51$3,463
Mar 1996157119.38$3,043
Feb 1996177116.98$3,005
Jan 1996333117.07$5,684
Dec 1995179117.19$3,077
Nov 1995195116.00$3,120
Oct 1995353115.43$5,447
Sep 1995176116.18$2,848
Aug 1995482115.92$7,673
Jul 19950115.24$0
Jun 19950116.41$0
May 1995181117.56$3,178
Apr 1995152117.73$2,695
Mar 1995327116.44$5,376
Feb 1995170016.58$2,819
Jan 199516335515.92$2,595
Dec 19943434315.03$5,155
Nov 199412614515.90$2,003
Oct 19941647815.58$2,555
Sep 199433111215.29$5,061
Aug 199416141616.13$2,597
Jul 199434036217.56$5,970
Jun 199435542117.09$6,067
May 199418842815.88$2,985
Apr 199416021114.14$2,262
Mar 199433036812.46$4,112
Feb 199434335412.50$4,288
Jan 199415351212.66$1,937
Dec 199364932012.33$8,002
Nov 1993032014.49$0
Oct 199334851315.85$5,516
Sep 1993161115.03$2,420
Aug 199332629415.66$5,105
Jul 199353352715.46$8,240
Jun 19931737116.79$2,905
May 19933542117.68$6,259
Apr 19931659418.05$2,978
Mar 199334433118.14$6,240
Feb 199352629117.90$9,415
Jan 199333310516.93$5,638

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 2010 — as filed, then multipliedworked
Oil                   31 bbl  × $ 73.58 =     $2,281
Casinghead gas         0 Mcf  × $  5.44 =         $0

────────────────────────────────────────────────────
Month total                                   $2,281

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/5478 is the state's own key, not one this site invented.