BROWNLEE BROS.-COOK

Operated by PRESIDIO PETROLEUM LLC (P-5 676084) in the NORTHRUP (CLEVELAND) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Gas lease lease 81518District 10Field 66124200NGPA filingCondensateGasSaveExport
Value, all time
$737 k
Jan 1993 – May 2026
Value, last 12 filed months
$18 k
at the published price for each month
Months reported
401
no gaps in the span
Streams
2
condensate, 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 97 leases and 97 wells, and the rule below applies to all of them.

Discovered
1959-12-08
as the register files it
Field class
Oil and gas
the register's own label
Between wells
1,320 ft
minimum
From a lease line
660 ft
minimum

A drilling unit in this field needs at least 160 acres. The field rule took effect on 1994-06-27.

The Commission's schedule remark for this field reads: OPTIONAL 160 ACRE UNITS WITH A MAXIMUM DIAGONAL OF 4500'

Severance-tax incentive filings

Applications the operator filed to have this lease's gas taxed at a reduced state rate. A filing is an application, and this page never calls one a reduction that was granted.

ProgrammeFilingsWith an approval dateDatedDocket
NGPA1none

This says nothing about a royalty. A severance tax is charged to the operator. Whether a reduced rate reaches a royalty owner depends on the wording of the lease instrument, which is a private contract this site does not hold.

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
CondensateDisposition450 bbl$8,924
GasProduction313,021 Mcf$728,150
Total$737,073

119,217 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 (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 36.2627, -100.6511. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.0 miles.

36.26274, -100.65108 · 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
7,258 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 7,258 ft.

Completions filed
Feb 1979
1 of 1 wells

1 well

42-3573088027,258 ftFeb 1979

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 20260431106.413.05$1,313
Apr 2026038298.932.87$1,096
Mar 2026042889.753.15$1,348
Feb 2026039963.503.75$1,496
Jan 2026042559.138.00$3,399
Dec 2025041856.664.41$1,845
Nov 2025038258.593.93$1,500
Oct 2025034059.383.30$1,124
Sep 2025043862.743.08$1,348
Aug 2025046863.933.01$1,411
Jul 2025039066.743.32$1,293
Jun 2025040166.483.13$1,255
May 2025042360.553.23$1,367
Apr 2025040562.363.54$1,435
Mar 2025041067.704.27$1,750
Feb 2025039170.884.34$1,697
Jan 2025044074.324.28$1,883
Dec 2024043968.993.12$1,370
Nov 2024040169.052.20$882
Oct 2024040171.372.28$915
Sep 2024035469.612.36$837
Aug 2024039775.632.06$819
Jul 2024041279.932.15$884
Jun 2024042878.082.63$1,127
May 2024044678.812.20$981
Apr 2024043084.451.66$713
Mar 2024045780.301.55$706
Feb 2024043876.091.78$781
Jan 2024049573.023.30$1,632
Dec 2023046671.262.61$1,217
Nov 2023042477.892.81$1,190
Oct 2023044085.443.09$1,358
Sep 2023047689.042.74$1,302
Aug 2023033580.522.67$895
Jul 2023040374.852.64$1,065
Jun 2023036868.962.26$831
May 2023038870.622.23$864
Apr 2023043078.122.24$962
Mar 2023047272.852.39$1,130
Feb 2023040675.112.47$1,001
Jan 2023025376.533.39$857
Dec 2022027376.415.73$1,564
Nov 2022027985.005.65$1,575
Oct 2022034787.185.86$2,035
Sep 2022013484.888.16$1,094
Aug 2022026394.529.13$2,400
Jul 20220231101.587.54$1,742
Jun 20220383115.097.98$3,055
May 20220257109.378.43$2,167
Apr 20220339104.226.84$2,318
Mar 20220265108.885.08$1,345
Feb 2022041291.054.86$2,002
Jan 2022054581.844.54$2,473
Dec 2021012271.323.90$476
Nov 2021032977.435.24$1,723
Oct 2021039879.795.71$2,274
Sep 2021041169.865.35$2,199
Aug 2021054666.024.22$2,304
Jul 2021098870.783.98$3,934
Jun 202108869.493.38$297
May 20210063.483.02$0
Apr 20210060.362.76$0
Mar 202105661.302.72$152
Feb 202105357.805.55$294
Jan 202105250.412.81$146
Dec 202004744.642.68$126
Nov 202008838.772.71$238
Oct 202004136.972.48$102
Sep 20200037.091.99$0
Aug 20200039.982.39$0
Jul 20200038.371.83$0
Jun 2020094034.901.69$1,589
May 2020037516.921.81$681
Apr 2020053514.751.80$965
Mar 2020048330.341.86$897
Feb 2020039149.881.98$774
Jan 202001,46957.252.09$3,077
Dec 201901,60459.012.30$3,696
Nov 2019099455.302.75$2,734
Oct 2019052853.472.42$1,277
Sep 2019096855.052.66$2,572
Aug 2019051053.112.30$1,175
Jul 2019043456.272.46$1,068
Jun 2019026552.782.49$660
May 2019021058.482.74$575
Apr 2019044462.632.75$1,221
Mar 2019077256.803.06$2,364
Feb 20190050.852.79$0
Jan 2019035646.033.23$1,149
Dec 2018043646.594.19$1,825
Nov 2018044752.934.24$1,894
Oct 2018089861.443.40$3,051
Sep 2018040859.543.11$1,268
Aug 2018029059.403.07$889
Jul 2018033365.142.93$976
Jun 2018047760.183.08$1,468
May 2018036365.382.90$1,053
Apr 2018042763.842.90$1,239
Mar 201806061.222.79$167
Feb 201802061.782.77$55
Jan 2018044462.874.01$1,780
Dec 2017033557.272.92$979
Nov 2017045255.423.12$1,410
Oct 2017036849.292.98$1,098
Sep 2017046847.523.09$1,445
Aug 2017045645.373.00$1,370
Jul 2017036343.873.09$1,121
Jun 2017045942.493.09$1,417
May 2017048845.373.26$1,593
Apr 2017045147.933.21$1,448
Mar 2017073646.772.98$2,196
Feb 2017059250.452.95$1,748
Jan 2017073649.413.42$2,516
Dec 2016088248.763.72$3,284
Nov 2016070342.492.64$1,859
Oct 2016089746.193.09$2,772
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 201601736.561.99$34
Mar 20160033.011.79$0
Feb 201602026.472.06$41
Jan 2016028527.352.36$674
Dec 2015022832.362.00$456
Nov 2015054038.792.17$1,170
Oct 2015037143.552.43$900
Sep 2015045942.992.76$1,266
Aug 2015034740.162.87$997
Jul 2015043248.152.95$1,272
Jun 2015022856.152.88$657
May 2015052355.212.96$1,546
Apr 2015059249.822.71$1,602
Mar 2015030742.892.93$901
Feb 2015058144.662.98$1,729
Jan 2015062343.433.10$1,932
Dec 2014071754.693.59$2,575
Nov 2014048270.464.25$2,049
Oct 2014053978.303.90$2,103
Sep 2014063086.164.05$2,549
Aug 2014066889.394.04$2,695
Jul 2014042996.564.18$1,793
Jun 2014058298.164.74$2,757
May 2014058994.734.73$2,784
Apr 2014053395.944.81$2,563
Mar 2014060295.895.06$3,044
Feb 2014015197.406.19$935
Jan 2014038890.404.86$1,886
Dec 2013034391.824.35$1,494
Nov 2013045888.853.74$1,712
Oct 2013054297.423.78$2,048
Sep 20130371104.113.72$1,379
Aug 20130439104.253.52$1,546
Jul 20130253102.523.72$941
Jun 2013043294.403.93$1,699
May 2013043194.834.15$1,788
Apr 2013048693.964.28$2,081
Mar 2013051293.623.91$2,003
Feb 2013075191.233.42$2,568
Jan 2013053291.603.42$1,819
Dec 201224086.773.42$2,082
Nov 20120186.953.62$4
Oct 20120089.383.40$0
Sep 20120094.672.92$0
Aug 20120092.662.91$0
Jul 201205085.133.02$151
Jun 2012018979.822.52$476
May 2012032691.612.49$811
Apr 20120482101.652.00$962
Mar 20120295105.052.22$656
Feb 20120392101.102.57$1,008
Jan 2012032798.092.73$894
Dec 2011060096.873.24$1,944
Nov 2011052195.723.31$1,725
Oct 2011048984.983.65$1,784
Sep 201102383.623.99$92
Aug 2011033283.404.15$1,378
Jul 2011052094.144.52$2,349
Jun 2011050792.904.64$2,352
May 2011050598.134.40$2,224
Apr 20110452105.964.33$1,959
Mar 2011049196.364.06$1,992
Feb 2011020385.644.18$849
Jan 2011039286.504.59$1,799
Dec 2010053085.734.35$2,304
Nov 2010050880.843.80$1,928
Oct 2010049678.103.51$1,740
Sep 2010053972.633.98$2,145
Aug 2010041973.684.42$1,852
Jul 2010014472.554.74$682
Jun 2010038870.364.91$1,905
May 2010049471.124.24$2,092
Apr 2010034681.694.12$1,426
Mar 2010058878.394.39$2,581
Feb 2010034773.585.44$1,889
Jan 2010039874.365.96$2,374
Dec 2009053071.445.48$2,906
Nov 2009035574.593.75$1,332
Oct 2009048472.544.11$1,989
Sep 2009038965.543.06$1,192
Aug 2009030867.423.22$991
Jul 2009029561.133.46$1,022
Jun 2009033666.163.90$1,309
May 2009038754.743.93$1,519
Apr 2009043946.773.59$1,575
Mar 2009045742.144.06$1,855
Feb 2009040732.814.63$1,886
Jan 2009045435.865.37$2,438
Dec 2008048537.105.98$2,899
Nov 2008017655.496.86$1,207
Oct 2008019675.246.92$1,357
Sep 20080176101.767.88$1,386
Aug 20080247114.228.48$2,095
Jul 20080432131.0811.39$4,920
Jun 20080356131.3313.03$4,640
May 20080377123.1711.57$4,364
Apr 20080533110.3110.45$5,572
Mar 2008094101.909.66$908
Feb 200802392.538.77$202
Jan 200808690.388.21$706
Dec 200705488.337.30$394
Nov 2007013291.677.29$963
Oct 200707382.856.92$505
Sep 200701,03075.846.24$6,431
Aug 200709469.066.39$600
Jul 200707770.906.39$492
Jun 2007026562.007.55$2,000
May 2007021458.747.85$1,679
Apr 2007038959.617.81$3,036
Mar 2007043156.927.30$3,147
Feb 2007050855.108.22$4,174
Jan 2007038350.306.73$2,576
Dec 2006041756.656.92$2,885
Nov 2006041454.207.62$3,154
Oct 2006042354.906.01$2,544
Sep 2006039060.085.04$1,965
Aug 2006037568.717.34$2,752
Jul 2006036669.376.34$2,321
Jun 2006040666.286.38$2,592
May 2006040466.016.42$2,596
Apr 2006044664.397.36$3,283
Mar 2006028056.707.08$1,983
Feb 2006043857.597.75$3,395
Jan 2006027660.598.93$2,466
Dec 2005016954.9413.42$2,267
Nov 2005039454.6910.59$4,172
Oct 2005040158.3413.80$5,532
Sep 2005045261.4512.08$5,460
Aug 2005042561.519.80$4,164
Jul 2005044755.697.84$3,506
Jun 2005040752.337.38$3,004
May 2005048745.226.65$3,239
Apr 2005054849.207.36$4,034
Mar 2005016550.377.15$1,181
Feb 2005018745.226.31$1,180
Jan 2005042043.166.32$2,655
Dec 2004038739.866.75$2,613
Nov 2004034145.286.33$2,159
Oct 2004035149.706.52$2,287
Sep 2004032743.245.28$1,728
Aug 2004042242.375.55$2,342
Jul 2004044838.286.08$2,726
Jun 2004046836.106.43$3,011
May 2004018737.486.49$1,214
Apr 2004056734.475.86$3,322
Mar 2004059934.365.53$3,313
Feb 2004044732.455.51$2,463
Jan 2004049632.036.30$3,125
Dec 2003061730.266.30$3,888
Nov 2003047728.804.60$2,192
Oct 2003064128.174.76$3,051
Sep 2003055526.314.75$2,636
Aug 2003040429.765.13$2,072
Jul 2003070429.415.17$3,640
Jun 2003075428.565.98$4,511
May 20037651426.595.97$5,091
Apr 2003061226.675.41$3,309
Mar 2003048231.146.10$2,938
Feb 2003041133.487.93$3,258
Jan 2003066830.315.58$3,729
Dec 2002077326.914.85$3,752
Nov 2002071224.664.14$2,946
Oct 2002078626.464.23$3,324
Sep 2002075627.443.64$2,748
Aug 2002091525.963.16$2,895
Jul 2002096224.583.06$2,945
Jun 2002088223.733.34$2,944
May 200201,21124.663.58$4,340
Apr 2002010823.653.51$379
Mar 200206522.003.10$202
Feb 2002036418.222.38$865
Jan 2002077517.172.38$1,841
Dec 2001086216.932.36$2,038
Nov 2001085218.072.41$2,050
Oct 200101,09019.782.53$2,756
Sep 2001082824.262.25$1,864
Aug 2001071524.873.05$2,183
Jul 200101,13823.933.20$3,638
Jun 2001027324.563.82$1,044
May 2001075625.524.31$3,256
Apr 2001089024.685.34$4,748
Mar 2001087924.545.38$4,726
Feb 200101,01427.755.77$5,848
Jan 2001086927.478.40$7,299
Dec 2000084026.889.12$7,663
Nov 2000074332.215.66$4,204
Oct 2000031731.235.15$1,631
Sep 2000082031.875.19$4,253
Aug 2000086329.644.54$3,919
Jul 2000089028.534.09$3,640
Jun 2000097029.304.40$4,265
May 200001,01927.263.68$3,750
Apr 2000079524.513.12$2,477
Mar 2000094028.422.86$2,688
Feb 2000096027.622.73$2,617
Jan 200001,07225.272.48$2,659
Dec 199901,07324.282.42$2,601
Nov 199901,15723.192.43$2,816
Oct 199901,12620.982.80$3,157
Sep 199901,10021.752.62$2,881
Aug 199901,26519.262.88$3,638
Jul 199901,19517.892.37$2,835
Jun 199901,08815.942.36$2,570
May 199901,17515.792.32$2,727
Apr 1999089115.102.21$1,967
Mar 199901,16712.471.84$2,145
Feb 199901,0019.981.82$1,820
Jan 1999441,47410.381.90$3,257
Dec 199809139.201.77$1,619
Nov 199801,23410.892.19$2,697
Oct 199801,35912.421.97$2,676
Sep 199801,32812.592.08$2,766
Aug 199801,22411.301.91$2,335
Jul 1998099011.742.24$2,215
Jun 199801,60111.242.24$3,582
May 199801,46412.622.21$3,230
Apr 19981591,33013.042.51$5,405
Mar 199802,05112.802.31$4,737
Feb 199801,44313.952.30$3,318
Jan 199801,61114.702.15$3,471
Dec 199701,50016.322.41$3,617
Nov 199701,61818.193.09$4,997
Oct 199701,87219.253.15$5,896
Sep 199701,85017.742.95$5,467
Aug 199702,07017.862.55$5,288
Jul 199702,29217.582.25$5,150
Jun 199702,52217.242.26$5,693
May 199702,28618.972.31$5,277
Apr 199702,60817.882.08$5,432
Mar 199702,85018.951.94$5,527
Feb 199702,53420.492.21$5,590
Jan 1997029923.483.54$1,058
Dec 199602,15223.32$0
Nov 199602,49521.97$0
Oct 199602,58723.31$0
Sep 199602,50222.22$0
Aug 199601,70920.26$0
Jul 199601,90519.55$0
Jun 199602,57018.73$0
May 199602,45219.43$0
Apr 199602,07321.51$0
Mar 199601,81819.38$0
Feb 199601,50116.98$0
Jan 199602,48917.07$0
Dec 199502,55617.19$0
Nov 199502,46216.00$0
Oct 199502,70215.43$0
Sep 199502,47416.18$0
Aug 199502,06415.92$0
Jul 199502,70915.24$0
Jun 199501,96216.41$0
May 199502,32317.56$0
Apr 199502,40617.73$0
Mar 199502,33116.44$0
Feb 199502,27216.58$0
Jan 199502,56715.92$0
Dec 199402,62215.03$0
Nov 199402,23315.90$0
Oct 19941472,41915.58$2,290
Sep 199402,45215.29$0
Aug 199402,50316.13$0
Jul 199402,68317.56$0
Jun 199402,42817.09$0
May 199402,62115.88$0
Apr 199403,08314.14$0
Mar 199403,22712.46$0
Feb 199402,39712.50$0
Jan 199403,15912.66$0
Dec 199303,04812.33$0
Nov 199303,09014.49$0
Oct 199302,52315.85$0
Sep 199302,78815.03$0
Aug 199302,97315.66$0
Jul 199302,88815.46$0
Jun 199302,37416.79$0
May 199302,46817.68$0
Apr 199302,61818.05$0
Mar 199302,66818.14$0
Feb 199302,21017.90$0
Jan 199302,66116.93$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.

May 2026 — as filed, then multipliedworked
Condensate             0 bbl  × $106.41 =         $0
Gas                  431 Mcf  × $  3.05 =     $1,313

────────────────────────────────────────────────────
Month total                                   $1,313

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. 10/G/81518 is the state's own key, not one this site invented.