PERINI

Operated by SOJOURNER DRILLING CORPORATION (P-5 800750) in the KIRBY (COOK) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 26511District 7BField 49601100OilCasinghead gasSaveExport
Value, all time
$1.8 M
Jan 1993 – May 2026
Value, last 12 filed months
$888
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 4 leases and 10 wells, and the rule below applies to all of them.

Discovered
1992-04-08
as the register files it
Field class
Oil
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
OilDisposition68,433 bbl$1,719,308
Casinghead gasProduction51,540 Mcf$62,783
Total$1,782,090

32,130 Mcf of this lease's gas, across 48 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 (3)

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 32.2736, -99.8441. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.2 miles.

32.27353, -99.84413 · 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
66.7%
2 of 3 wells
With a plug date
66.7%
2 of 3 wells
Median depth
3,875 ft
3 wells filed one
Completion to plug
8.9 years
median over 2 wells

What the state filed about each well

On the RRC proration schedule
266.7%
A plug date is filed
266.7%
BothOn the schedule and plugged. Neither fact cancels the other.
266.7%
NeitherNo plug date, and not on the schedule.
133.3%

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 3,100 and 3,902 ft, median 3,875 ft, over the 3 wells that filed a depth.

Completions filed
Apr 1992 – Sep 2004
3 of 3 wells
Plug dates filed
Aug 2002 – Feb 2012
2 of 3 wells; 1 filed none

Last completion to plug: a median of 8.9 years across the 2 wells that filed both dates, with the middle half between 8.2 years and 9.6 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

3 wells

42-4413364063,100 ftSep 2004Feb 2012Yes
42-4413384573,875 ftNov 1997
42-4413295153,902 ftApr 1992Aug 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 20265089.753.15$449
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 20257062.743.08$439
Aug 20250063.933.01$0
Jul 20250066.743.32$0
Jun 20250066.483.13$0
May 20250060.553.23$0
Apr 20258062.363.54$499
Mar 20250067.704.27$0
Feb 20250070.884.34$0
Jan 20250074.324.28$0
Dec 20249068.993.12$621
Nov 20240069.052.20$0
Oct 20243071.372.28$214
Sep 20240069.612.36$0
Aug 20249075.632.06$681
Jul 20240079.932.15$0
Jun 20248078.082.63$625
May 20240078.812.20$0
Apr 20248084.451.66$676
Mar 20249080.301.55$723
Feb 20240076.091.78$0
Jan 20249073.023.30$657
Dec 20238071.262.61$570
Nov 20230077.892.81$0
Oct 20239085.443.09$769
Sep 20238089.042.74$712
Aug 20230080.522.67$0
Jul 20239074.852.64$674
Jun 20239068.962.26$621
May 20239070.622.23$636
Apr 20230078.122.24$0
Mar 20238072.852.39$583
Feb 20238075.112.47$601
Jan 20239076.533.39$689
Dec 20228076.415.73$611
Nov 20228085.005.65$680
Oct 20228087.185.86$697
Sep 202218084.888.16$1,528
Aug 20228094.529.13$756
Jul 202290101.587.54$914
Jun 202200115.097.98$0
May 202280109.378.43$875
Apr 202200104.226.84$0
Mar 202290108.885.08$980
Feb 20227091.054.86$637
Jan 20226081.844.54$491
Dec 20218071.323.90$571
Nov 20219077.435.24$697
Oct 20219079.795.71$718
Sep 20218069.865.35$559
Aug 202181066.024.22$5,348
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 20190346.033.23$10
Dec 201803046.594.19$126
Nov 201803052.934.24$127
Oct 201803061.443.40$102
Sep 201803059.543.11$93
Aug 201803059.403.07$92
Jul 201803065.142.93$88
Jun 20180060.183.08$0
May 201803065.382.90$87
Apr 201803063.842.90$87
Mar 201803061.222.79$84
Feb 201803061.782.77$83
Jan 201803062.874.01$120
Dec 201703057.272.92$88
Nov 201703055.423.12$94
Oct 20170049.292.98$0
Sep 20170047.523.09$0
Aug 20170045.373.00$0
Jul 201703043.873.09$93
Jun 201703042.493.09$93
May 20171633045.373.26$7,493
Apr 201703047.933.21$96
Mar 201703046.772.98$90
Feb 201703050.452.95$89
Jan 20170049.413.42$0
Dec 20160048.763.72$0
Nov 20160042.492.64$0
Oct 201603046.193.09$93
Sep 201603041.553.10$93
Aug 201603041.442.92$88
Jul 201603041.622.92$88
Jun 20160045.352.69$0
May 201603042.521.99$60
Apr 201603036.561.99$60
Mar 201603033.011.79$54
Feb 20161643026.472.06$4,403
Jan 201603027.352.36$71
Dec 201503032.362.00$60
Nov 20150038.792.17$0
Oct 201503043.552.43$73
Sep 201503042.992.76$83
Aug 201503040.162.87$86
Jul 201503048.152.95$88
Jun 201503056.152.88$86
May 201503055.212.96$89
Apr 20150049.822.71$0
Mar 201503042.892.93$88
Feb 20151653044.662.98$7,458
Jan 201503043.433.10$93
Dec 201403054.693.59$108
Nov 201403070.464.25$128
Oct 201403078.303.90$117
Sep 201403086.164.05$121
Aug 20141763089.394.04$15,854
Jul 201403096.564.18$125
Jun 201403098.164.74$142
May 201403094.734.73$142
Apr 201403095.944.81$144
Mar 20141783095.895.06$17,220
Feb 201403097.406.19$186
Jan 201403090.404.86$146
Dec 201303091.824.35$131
Nov 201303088.853.74$112
Oct 20131673097.423.78$16,383
Sep 2013030104.113.72$112
Aug 2013030104.253.52$106
Jul 2013030102.523.72$112
Jun 20131583094.403.93$15,033
May 201303094.834.15$124
Apr 201303093.964.28$128
Mar 201303093.623.91$117
Feb 201303091.233.42$103
Jan 201303091.603.42$103
Dec 20121563086.773.42$13,639
Nov 201203086.953.62$109
Oct 201203089.383.40$102
Sep 201203094.672.92$88
Aug 20121703092.662.91$15,839
Jul 201203085.133.02$91
Jun 201203079.822.52$76
May 201203091.612.49$75
Apr 201217430101.652.00$17,747
Mar 2012030105.052.22$67
Feb 2012030101.102.57$77
Jan 201203098.092.73$82
Dec 20111793096.873.24$17,437
Nov 201103095.723.31$99
Oct 201103084.983.65$109
Sep 20111653083.623.99$13,917
Aug 201103083.404.15$124
Jul 201103094.144.52$136
Jun 201103092.904.64$139
May 201103098.134.40$132
Apr 201116430105.964.33$17,507
Mar 201103096.364.06$122
Feb 201103085.644.18$125
Jan 201103086.504.59$138
Dec 20101703085.734.35$14,705
Nov 201003080.843.80$114
Oct 201003078.103.51$105
Sep 20101633072.633.98$11,958
Aug 201003073.684.42$133
Jul 201003072.554.74$142
Jun 20101663070.364.91$11,827
May 201003071.124.24$127
Apr 201003081.694.12$124
Mar 20101723078.394.39$13,615
Feb 201013073.585.44$237
Jan 201013074.365.96$253
Dec 200903071.445.48$165
Nov 200903074.593.75$113
Oct 20091743072.544.11$12,745
Sep 200903065.543.06$92
Aug 20091653067.423.22$11,221
Jul 200913061.133.46$165
Jun 200903066.163.90$117
May 20091743054.743.93$9,643
Apr 200903046.773.59$108
Mar 2009123042.144.06$627
Feb 20091713032.814.63$5,750
Jan 200903035.865.37$161
Dec 200813037.105.98$216
Nov 20081683055.496.86$9,528
Oct 200803075.246.92$208
Sep 200816830101.767.88$17,332
Aug 2008130114.228.48$369
Jul 200816830131.0811.39$22,363
Jun 2008230131.3313.03$654
May 200817730123.1711.57$22,148
Apr 2008030110.3110.45$314
Mar 200817230101.909.66$17,817
Feb 200813092.538.77$356
Jan 200803090.388.21$246
Dec 20071743088.337.30$15,588
Nov 200703091.677.29$219
Oct 20071823082.856.92$15,286
Sep 200703075.846.24$187
Aug 200703069.066.39$192
Jul 20071743070.906.39$12,528
Jun 200703062.007.55$226
May 20071763058.747.85$10,574
Apr 200703059.617.81$234
Mar 20071643056.927.30$9,554
Feb 200703055.108.22$246
Jan 20070050.306.73$0
Dec 20061843056.656.92$10,631
Nov 200603054.207.62$229
Oct 20061753054.906.01$9,788
Sep 200603060.085.04$151
Aug 20061713068.717.34$11,970
Jul 200603069.376.34$190
Jun 20061623066.286.38$10,929
May 200603066.016.42$193
Apr 20061763064.397.36$11,553
Mar 20061803056.707.08$10,418
Feb 200603057.597.75$233
Jan 200603060.598.93$268
Dec 20051843054.9413.42$10,511
Nov 200503054.6910.59$318
Oct 20051693058.3413.80$10,273
Sep 20051703061.4512.08$10,809
Aug 200503061.519.80$294
Jul 20051733055.697.84$9,870
Jun 20051803052.337.38$9,641
May 200503045.226.65$200
Apr 20051733049.207.36$8,732
Mar 20051773050.377.15$9,130
Feb 20051823045.226.31$8,419
Jan 200503043.166.32$190
Dec 20041823039.866.75$7,457
Nov 20041783045.286.33$8,250
Oct 20041833049.706.52$9,291
Sep 20041763043.245.28$7,769
Aug 20041813042.375.55$7,835
Jul 20041743038.286.08$6,843
Jun 20041973036.106.43$7,305
May 20043463037.486.49$13,163
Apr 20041763034.475.86$6,242
Mar 20041793034.365.53$6,316
Feb 20041713032.455.51$5,714
Jan 20040032.036.30$0
Dec 20031783030.266.30$5,575
Nov 20031793028.804.60$5,293
Oct 20031793028.174.76$5,185
Sep 20031743026.314.75$4,720
Aug 20031763029.765.13$5,392
Jul 20033583029.415.17$10,684
Jun 20031783028.565.98$5,263
May 20031763026.595.97$4,859
Apr 20033633026.675.41$9,843
Mar 20033523031.146.10$11,144
Feb 20031813033.487.93$6,298
Jan 20033623030.315.58$11,140
Dec 20021823026.914.85$5,043
Nov 20023623024.664.14$9,051
Oct 20021743026.464.23$4,731
Sep 20021783027.443.64$4,993
Aug 20023503025.963.16$9,181
Jul 20021743024.583.06$4,369
Jun 20023533023.733.34$8,477
May 20023493024.663.58$8,714
Apr 20023583023.653.51$8,572
Mar 20021773022.003.10$3,987
Feb 20023583018.222.38$6,594
Jan 20023623017.172.38$6,287
Dec 20015443016.932.36$9,281
Nov 20011833018.072.41$3,379
Oct 20013593019.782.53$7,177
Sep 20013583024.262.25$8,753
Aug 20011803024.873.05$4,568
Jul 20013543023.933.20$8,567
Jun 20013513024.563.82$8,735
May 20013603025.524.31$9,316
Apr 20013643024.685.34$9,144
Mar 20010024.545.38$0
Feb 200113027.755.77$201
Jan 200103027.478.40$252
Dec 20001853026.889.12$5,246
Nov 20001813432.215.66$6,022
Oct 20001805731.235.15$5,915
Sep 20003507531.875.19$11,543
Aug 200017311329.644.54$5,641
Jul 200035613428.534.09$10,705
Jun 200017011729.304.40$5,495
May 200032111327.263.68$9,166
Apr 200018612524.513.12$4,948
Mar 200031712428.422.86$9,364
Feb 200035012127.622.73$9,997
Jan 200017612725.272.48$4,763
Dec 199933616324.282.42$8,553
Nov 199935014823.192.43$8,477
Oct 199917119320.982.80$4,129
Sep 199929919621.752.62$7,017
Aug 199932220519.262.88$6,791
Jul 199930123117.892.37$5,933
Jun 199933121915.942.36$5,793
May 199934624715.792.32$6,037
Apr 199934724215.102.21$5,774
Mar 199951924512.471.84$6,922
Feb 19993722649.981.82$4,192
Jan 199951729310.381.90$5,923
Dec 19985342339.201.77$5,326
Nov 199835535210.892.19$4,635
Oct 199850942712.421.97$7,163
Sep 199852238712.592.08$7,378
Aug 199867444011.301.91$8,455
Jul 199851050411.742.24$7,115
Jun 199865641811.242.24$8,309
May 199851150612.622.21$7,565
Apr 199866051313.042.51$9,892
Mar 199870352312.802.31$10,206
Feb 199867350013.952.30$10,538
Jan 199883461214.702.15$13,579
Dec 199799374316.322.41$17,997
Nov 199733937618.193.09$7,328
Oct 199736933219.253.15$8,149
Sep 199717134117.742.95$4,041
Aug 199717136617.862.55$3,989
Jul 199734431917.582.25$6,764
Jun 199717028317.242.26$3,570
May 199731022618.972.31$6,402
Apr 199717724417.882.08$3,673
Mar 199734633218.951.94$7,200
Feb 199717424320.492.21$4,101
Jan 199739628123.483.54$10,293
Dec 199633025123.32$7,696
Nov 199616723021.97$3,669
Oct 199634928123.31$8,135
Sep 199634228322.22$7,599
Aug 199617732920.26$3,586
Jul 199632025519.55$6,256
Jun 199631225318.73$5,844
May 199633725319.43$6,548
Apr 199634324121.51$7,378
Mar 199634426319.38$6,667
Feb 199633726216.98$5,722
Jan 199638129517.07$6,504
Dec 199535847017.19$6,154
Nov 199536051816.00$5,760
Oct 199536057315.43$5,555
Sep 199534450716.18$5,566
Aug 199554461115.92$8,660
Jul 199536255915.24$5,517
Jun 199554061016.41$8,861
May 199517159617.56$3,003
Apr 199553757017.73$9,521
Mar 199536749116.44$6,033
Feb 199554661616.58$9,053
Jan 199554361615.92$8,645
Dec 199451660415.03$7,755
Nov 199454564915.90$8,666
Oct 199454573915.58$8,491
Sep 199473374015.29$11,208
Aug 199471271816.13$11,485
Jul 199454283917.56$9,518
Jun 199471683417.09$12,236
May 199460678615.88$9,623
Apr 199453466814.14$7,551
Mar 199488777312.46$11,052
Feb 199470769412.50$8,838
Jan 199471382012.66$9,027
Dec 199389599812.33$11,035
Nov 19931,0981,20514.49$15,910
Oct 19931,2681,62515.85$20,098
Sep 19931,4452,33815.03$21,718
Aug 19931,9721,84215.66$30,882
Jul 199371973215.46$11,116
Jun 199390366716.79$15,161
May 19931,08763617.68$19,218
Apr 19931,08364418.05$19,548
Mar 19931,26776618.14$22,983
Feb 19931,10673417.90$19,797
Jan 19931,2871,14616.93$21,789

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.

Mar 2026 — as filed, then multipliedworked
Oil                    5 bbl  × $ 89.75 =       $449
Casinghead gas         0 Mcf  × $  3.15 =         $0

────────────────────────────────────────────────────
Month total                                     $449

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/26511 is the state's own key, not one this site invented.