LAMBSHEAD C 10

Operated by PETEX (P-5 659782) in the BIG BUFFALO (MISSISSIPPIAN) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 26536District 7BField 07770100OilCasinghead gasSaveExport
Value, all time
$1.3 M
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 13 leases and 14 wells, and the rule below applies to all of them.

Discovered
1991-07-21
as the register files it
Field class
Oil and gas
the register's own label
Between wells
no field rule filed
From a lease line
no field rule filed

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
OilDisposition51,182 bbl$1,270,387
Casinghead gasProduction33,946 Mcf$10,165
Total$1,280,552

29,726 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 32.9847, -99.2694. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.6 miles.

32.98472, -99.26937 · 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
4,881 ft
2 wells filed one
Completion to plug
11.3 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 4,800 and 4,961 ft, median 4,881 ft, over the 2 wells that filed a depth.

Completions filed
May 1997 – Dec 2011
2 of 2 wells
Plug dates filed
Mar 2023
1 of 2 wells; 1 filed none

Last completion to plug: a median of 11.3 years across the 1 well that filed both dates, with the middle half between 11.3 years and 11.3 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

2 wells

42-4473526314,800 ftDec 2011Mar 2023Yes
42-4473526724,961 ftMay 1997

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 2011164096.873.24$15,887
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 2011171098.134.40$16,780
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 2010181080.843.80$14,632
Oct 20100078.103.51$0
Sep 20100072.633.98$0
Aug 20100073.684.42$0
Jul 2010176072.554.74$12,769
Jun 20100070.364.91$0
May 20100071.124.24$0
Apr 201082081.694.12$6,699
Mar 2010179078.394.39$14,032
Feb 20100073.585.44$0
Jan 20100074.365.96$0
Dec 2009175071.445.48$12,502
Nov 20090074.593.75$0
Oct 20090072.544.11$0
Sep 2009173065.543.06$11,338
Aug 20091067.423.22$67
Jul 20090061.133.46$0
Jun 20090066.163.90$0
May 2009166054.743.93$9,087
Apr 20090046.773.59$0
Mar 2009167042.144.06$7,037
Feb 20090032.814.63$0
Jan 2009166035.865.37$5,953
Dec 20080037.105.98$0
Nov 20080055.496.86$0
Oct 2008178075.246.92$13,393
Sep 200800101.767.88$0
Aug 20081780114.228.48$20,331
Jul 20081780131.0811.39$23,332
Jun 200800131.3313.03$0
May 20081780123.1711.57$21,924
Apr 20081790110.3110.45$19,745
Mar 200800101.909.66$0
Feb 2008182092.538.77$16,840
Jan 20080090.388.21$0
Dec 2007174088.337.30$15,369
Nov 2007166091.677.29$15,217
Oct 20070082.856.92$0
Sep 2007178075.846.24$13,500
Aug 2007170069.066.39$11,740
Jul 20070070.906.39$0
Jun 2007169062.007.55$10,478
May 200775058.747.85$4,406
Apr 2007173059.617.81$10,313
Mar 20070056.927.30$0
Feb 2007169055.108.22$9,312
Jan 20070050.306.73$0
Dec 2006168056.656.92$9,517
Nov 2006179054.207.62$9,702
Oct 20060054.906.01$0
Sep 2006167060.085.04$10,033
Aug 2006177068.717.34$12,162
Jul 2006179069.376.34$12,417
Jun 20060066.286.38$0
May 20060066.016.42$0
Apr 20060064.397.36$0
Mar 2006181056.707.08$10,263
Feb 20060057.597.75$0
Jan 20060060.598.93$0
Dec 2005175054.9413.42$9,615
Nov 20050054.6910.59$0
Oct 200540058.3413.80$2,334
Sep 20050061.4512.08$0
Aug 2005177061.519.80$10,887
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 2005179045.226.31$8,094
Jan 20050043.166.32$0
Dec 20040039.866.75$0
Nov 2004176045.286.33$7,969
Oct 2004168049.706.52$8,350
Sep 20041043.245.28$43
Aug 2004177042.375.55$7,499
Jul 20040038.286.08$0
Jun 20040036.106.43$0
May 2004178037.486.49$6,671
Apr 20040034.475.86$0
Mar 20040034.365.53$0
Feb 20040032.455.51$0
Jan 2004176032.036.30$5,637
Dec 20030030.266.30$0
Nov 2003180028.804.60$5,184
Oct 20030028.174.76$0
Sep 2003355026.314.75$9,340
Aug 20030029.765.13$0
Jul 20030029.415.17$0
Jun 2003176028.565.98$5,027
May 2003176026.595.97$4,680
Apr 20030026.675.41$0
Mar 2003178031.146.10$5,543
Feb 20030033.487.93$0
Jan 2003180030.315.58$5,456
Dec 2002177026.914.85$4,763
Nov 2002178024.664.14$4,389
Oct 2002178026.464.23$4,710
Sep 2002176027.443.64$4,829
Aug 2002177025.963.16$4,595
Jul 2002176024.583.06$4,326
Jun 20020023.733.34$0
May 2002176024.663.58$4,340
Apr 2002177023.653.51$4,186
Mar 2002180022.003.10$3,960
Feb 2002182018.222.38$3,316
Jan 2002177017.172.38$3,039
Dec 20010016.932.36$0
Nov 2001180018.072.41$3,253
Oct 2001173019.782.53$3,422
Sep 2001176024.262.25$4,270
Aug 2001173024.873.05$4,303
Jul 2001170023.933.20$4,068
Jun 2001178024.563.82$4,372
May 2001177025.524.31$4,517
Apr 2001178024.685.34$4,393
Mar 2001179024.545.38$4,393
Feb 2001178027.755.77$4,940
Jan 2001181027.478.40$4,972
Dec 2000181026.889.12$4,865
Nov 2000180032.215.66$5,798
Oct 2000179031.235.15$5,590
Sep 2000177031.875.19$5,641
Aug 2000177029.644.54$5,246
Jul 2000174028.534.09$4,964
Jun 2000176029.304.40$5,157
May 2000175027.263.68$4,771
Apr 2000177024.513.12$4,338
Mar 2000180028.422.86$5,116
Feb 2000177027.622.73$4,889
Jan 20001814825.272.48$4,693
Dec 199936212424.282.42$9,090
Nov 199917812223.192.43$4,425
Oct 199918011620.982.80$4,102
Sep 199935512621.752.62$8,051
Aug 199917514319.262.88$3,782
Jul 199917711917.892.37$3,449
Jun 19991779115.942.36$3,036
May 199918010115.792.32$3,077
Apr 199908015.102.21$177
Mar 19990012.471.84$0
Feb 19990179.981.82$31
Jan 19990010.381.90$0
Dec 1998343319.201.77$3,211
Nov 199809210.892.19$201
Oct 199835615812.421.97$4,733
Sep 199817710512.592.08$2,447
Aug 199817612511.301.91$2,227
Jul 199817516011.742.24$2,412
Jun 199834918811.242.24$4,343
May 199817419112.622.21$2,617
Apr 199835616413.042.51$5,053
Mar 199818115212.802.31$2,668
Feb 199835813013.952.30$5,293
Jan 199818013614.702.15$2,939
Dec 199736211116.322.41$6,175
Nov 199718013018.193.09$3,676
Oct 199727112119.253.15$5,598
Sep 199717314317.742.95$3,492
Aug 199734216517.862.55$6,530
Jul 199717615817.582.25$3,449
Jun 199724512217.242.26$4,499
May 199734519718.972.31$6,999
Apr 19971405717.882.08$2,622
Mar 19971919418.951.94$3,802
Feb 199719310120.492.21$4,177
Jan 199733410223.483.54$8,203
Dec 199636019023.32$8,395
Nov 199636221221.97$7,953
Oct 199636018223.31$8,392
Sep 199618014422.22$4,000
Aug 199630136420.26$6,098
Jul 199635536919.55$6,940
Jun 199635518018.73$6,649
May 199636124719.43$7,014
Apr 199619020421.51$4,087
Mar 199654727519.38$10,601
Feb 199618913516.98$3,209
Jan 199636822217.07$6,282
Dec 199553928117.19$9,265
Nov 199518120516.00$2,896
Oct 199547318715.43$7,298
Sep 199553621916.18$8,672
Aug 199551924915.92$8,262
Jul 199570323415.24$10,714
Jun 199570217616.41$11,520
May 199570726417.56$12,415
Apr 199569723817.73$12,358
Mar 199552728116.44$8,664
Feb 199551623216.58$8,555
Jan 199553931815.92$8,581
Dec 199467726315.03$10,175
Nov 199470835415.90$11,257
Oct 199471332815.58$11,109
Sep 1994112315.29$15
Aug 19940016.13$0
Jul 199452232117.56$9,166
Jun 199488491417.09$15,108
May 199488173615.88$13,990
Apr 19949061,13714.14$12,811
Mar 19941,06274812.46$13,233
Feb 199485724212.50$10,713
Jan 199488455612.66$11,191
Dec 199389352612.33$11,011
Nov 19931,0801,00114.49$15,649
Oct 19931,2041,62015.85$19,083
Sep 19931,3291,53415.03$19,975
Aug 19938791,28415.66$13,765
Jul 19936981,09515.46$10,791
Jun 19936981,29516.79$11,719
May 19931,0601,70917.68$18,741
Apr 19938912,07118.05$16,083
Mar 19938842,14318.14$16,036
Feb 19935322,05117.90$9,523
Jan 19937212,06716.93$12,207

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.

Dec 2011 — as filed, then multipliedworked
Oil                  164 bbl  × $ 96.87 =    $15,887
Casinghead gas         0 Mcf  × $  3.24 =         $0

────────────────────────────────────────────────────
Month total                                  $15,887

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. 7B/O/26536 is the state's own key, not one this site invented.