SISTERS

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

Oil lease lease 6561District 10Field 11226800NGPA filingOilCasinghead gasSaveExport
Value, all time
$8.1 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 91 leases and 219 wells, and the rule below applies to all of them.

Discovered
1958-11-19
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 640 acres. The field rule took effect on 1961-04-17.

The Commission's schedule remark for this field reads: MULTI 49B WITH 80 AC BASE UNIT UP TO 640 AC WITH 10% TOLERANCE.

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
NGPA2none

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
OilDisposition206,570 bbl$5,954,388
Casinghead gasProduction1,272,601 Mcf$2,137,051
Total$8,091,439

735,218 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 (6)

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 36.2416, -100.4129. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.8 miles.

36.24143, -100.41139 · 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
33.3%
2 of 6 wells
With a plug date
33.3%
2 of 6 wells
Median depth
6,693 ft
6 wells filed one
Completion to plug
23.1 years
median over 2 wells

What the state filed about each well

On the RRC proration schedule
233.3%
A plug date is filed
233.3%
BothOn the schedule and plugged. Neither fact cancels the other.
233.3%
NeitherNo plug date, and not on the schedule.
466.7%

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 6,675 and 9,505 ft, median 6,693 ft, over the 6 wells that filed a depth.

Completions filed
Jul 1988 – Oct 1990
6 of 6 wells
Plug dates filed
Feb 2007 – Aug 2019
2 of 6 wells; 4 filed none

Last completion to plug: a median of 23.1 years across the 2 wells that filed both dates, with the middle half between 20.3 years and 26.0 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

6 wells

42-2953190266,679 ftOct 1990Aug 2019Yes
42-2953188256,720 ftApr 1990
42-2953185736,675 ftOct 1989Feb 2007Yes
42-2953112749,505 ftApr 1989
42-2953181726,680 ftDec 1988
42-2953179816,706 ftJul 1988

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 2023110085.443.09$9,398
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 202104857.805.55$266
Jan 202119015750.412.81$10,019
Dec 2020036244.642.68$969
Nov 2020035638.772.71$964
Oct 2020034036.972.48$843
Sep 2020034137.091.99$679
Aug 2020034839.982.39$830
Jul 202018534938.371.83$7,735
Jun 2020031434.901.69$531
May 2020032916.921.81$597
Apr 2020032314.751.80$583
Mar 202018547530.341.86$6,495
Feb 2020041249.881.98$816
Jan 2020029657.252.09$620
Dec 201919047459.012.30$12,304
Nov 20194350855.302.75$3,775
Oct 2019049853.472.42$1,204
Sep 2019050755.052.66$1,347
Aug 201918458253.112.30$11,113
Jul 2019055356.272.46$1,360
Jun 2019050852.782.49$1,266
May 2019051758.482.74$1,417
Apr 2019047762.632.75$1,312
Mar 2019047856.803.06$1,464
Feb 201918743650.852.79$10,726
Jan 2019041446.033.23$1,336
Dec 2018030146.594.19$1,260
Nov 201819035152.934.24$11,544
Oct 201818646861.443.40$13,018
Sep 201818849159.543.11$12,720
Aug 2018043659.403.07$1,337
Jul 201818552365.142.93$13,584
Jun 201821175160.183.08$15,009
May 201818451065.382.90$13,509
Apr 201818551163.842.90$13,293
Mar 201819251361.222.79$13,184
Feb 201819151061.782.77$13,211
Jan 201819554062.874.01$14,425
Dec 201719753057.272.92$12,831
Nov 201720750555.423.12$13,047
Oct 201719360649.292.98$11,321
Sep 201719159247.523.09$10,904
Aug 201719060145.373.00$10,426
Jul 201718861043.873.09$10,131
Jun 201718752142.493.09$9,554
May 2017050445.373.26$1,645
Apr 201738660447.933.21$20,441
Mar 201719294646.772.98$11,802
Feb 201716778750.452.95$10,749
Jan 201719677149.413.42$12,320
Dec 2016044648.763.72$1,660
Nov 2016033242.492.64$878
Oct 201619037646.193.09$9,938
Sep 201619139141.553.10$9,148
Aug 201618845441.442.92$9,118
Jul 201618847941.622.92$9,225
Jun 201637847245.352.69$18,410
May 2016266042.521.99$11,310
Apr 201619348536.561.99$8,022
Mar 201619245833.011.79$7,160
Feb 201619343226.472.06$6,000
Jan 201638647927.352.36$11,690
Dec 201519145732.362.00$7,095
Nov 201519349338.792.17$8,555
Oct 201519343943.552.43$9,470
Sep 201519040042.992.76$9,271
Aug 201538042840.162.87$16,490
Jul 2015046648.152.95$1,372
Jun 201553339756.152.88$31,072
May 201519246055.212.96$11,960
Apr 201519239149.822.71$10,624
Mar 201518837042.892.93$9,149
Feb 201519936344.662.98$9,968
Jan 201519744843.433.10$9,945
Dec 201418347654.693.59$11,718
Nov 201419840970.464.25$15,690
Oct 201439157478.303.90$32,854
Sep 2014053686.164.05$2,168
Aug 201438455489.394.04$36,561
Jul 201419450296.564.18$20,831
Jun 201419353398.164.74$21,470
May 201439455194.734.73$39,928
Apr 2014051995.944.81$2,496
Mar 201439454195.895.06$40,516
Feb 201419850397.406.19$22,400
Jan 201419858290.404.86$20,728
Dec 201339762991.824.35$39,192
Nov 2013061088.853.74$2,280
Oct 2013034297.423.78$1,293
Sep 20130418104.113.72$1,554
Aug 2013188541104.253.52$21,505
Jul 20130585102.523.72$2,175
Jun 201319251694.403.93$20,154
May 201315264094.834.15$17,070
Apr 201339250793.964.28$39,004
Mar 2013043393.623.91$1,694
Feb 201339428391.233.42$36,912
Jan 2013045891.603.42$1,566
Dec 201219338586.773.42$18,063
Nov 2012040286.953.62$1,457
Oct 2012057889.383.40$1,965
Sep 201237460794.672.92$37,178
Aug 2012070892.662.91$2,059
Jul 201219454885.133.02$18,171
Jun 2012031479.822.52$791
May 2012044691.612.49$1,110
Apr 20120557101.652.00$1,112
Mar 2012584791105.052.22$63,107
Feb 2012191191101.102.57$19,801
Jan 201219866998.092.73$21,251
Dec 2011064696.873.24$2,093
Nov 2011061795.723.31$2,043
Oct 201119275084.983.65$19,053
Sep 201138359383.623.99$34,390
Aug 2011060583.404.15$2,510
Jul 201117159294.144.52$18,772
Jun 201119355592.904.64$20,505
May 201119167398.134.40$21,707
Apr 2011192741105.964.33$23,555
Mar 201119480396.364.06$21,952
Feb 201119253685.644.18$18,683
Jan 201119468786.504.59$19,933
Dec 2010056685.734.35$2,461
Nov 201019274080.843.80$18,330
Oct 201018268278.103.51$16,607
Sep 201038271172.633.98$30,574
Aug 2010074973.684.42$3,310
Jul 201019161672.554.74$16,775
Jun 201019147270.364.91$15,756
May 201018678271.124.24$16,540
Apr 201018981781.694.12$18,808
Mar 2010087078.394.39$3,818
Feb 201019385973.585.44$18,876
Jan 20103821,11174.365.96$35,032
Dec 20091921,18471.445.48$20,209
Nov 2009091774.593.75$3,440
Oct 20093881,21272.544.11$33,127
Sep 20091891,03865.543.06$15,568
Aug 200938294767.423.22$28,802
Jul 2009088561.133.46$3,066
Jun 200919299966.163.90$16,594
May 20095531,13254.743.93$34,715
Apr 20091801,20046.773.59$12,724
Mar 20091911,00542.144.06$12,128
Feb 20093921,20232.814.63$18,430
Jan 2009087435.865.37$4,694
Dec 200819798737.105.98$13,208
Nov 20081981,23955.496.86$19,487
Oct 20085791,20875.246.92$51,926
Sep 20081921,233101.767.88$29,250
Aug 20081881,186114.228.48$31,534
Jul 20083811,254131.0811.39$64,224
Jun 20083671,232131.3313.03$64,254
May 200801,232123.1711.57$14,260
Apr 20081931,213110.3110.45$33,972
Mar 20083891,389101.909.66$53,062
Feb 20083831,26192.538.77$46,499
Jan 20083251,29990.388.21$40,033
Dec 20071901,26388.337.30$26,005
Nov 20073841,47691.677.29$45,964
Oct 20071891,52382.856.92$26,201
Sep 20073821,55875.846.24$38,699
Aug 20075611,67169.066.39$49,417
Jul 20075611,75370.906.39$50,973
Jun 20075751,55662.007.55$47,395
May 20071911,17058.747.85$20,399
Apr 20073821,31459.617.81$33,027
Mar 20075751,58456.927.30$44,295
Feb 20071951,31955.108.22$21,581
Jan 20071961,60950.306.73$20,682
Dec 20063851,69256.656.92$33,516
Nov 20063891,76454.207.62$34,521
Oct 20063771,80954.906.01$31,576
Sep 20065711,87060.085.04$43,725
Aug 20063811,91868.717.34$40,256
Jul 20063741,79669.376.34$37,336
Jun 20063801,77766.286.38$36,531
May 20063751,88466.016.42$36,858
Apr 20065681,97364.397.36$51,096
Mar 20061901,69556.707.08$22,779
Feb 20063711,57757.597.75$33,589
Jan 20065731,85060.598.93$51,245
Dec 20053851,79154.9413.42$45,179
Nov 20053891,82154.6910.59$40,556
Oct 20053751,86458.3413.80$47,593
Sep 20057691,87161.4512.08$69,855
Aug 20051921,95861.519.80$30,992
Jul 20055751,92955.697.84$47,152
Jun 20053721,87452.337.38$33,299
May 20055721,97745.226.65$39,015
Apr 20053921,77449.207.36$32,344
Mar 20055851,92050.377.15$43,204
Feb 20055851,72645.226.31$37,348
Jan 20053741,84543.166.32$27,806
Dec 20047761,87239.866.75$43,569
Nov 20041851,88245.286.33$20,291
Oct 20045451,91449.706.52$39,556
Sep 20045611,91343.245.28$34,366
Aug 20043751,92842.375.55$26,590
Jul 20045452,06838.286.08$33,445
Jun 20047511,97836.106.43$39,836
May 20043721,66537.486.49$24,756
Apr 20045841,94134.475.86$31,502
Mar 20045621,93034.365.53$29,983
Feb 20043811,84132.455.51$22,507
Jan 20047672,15032.036.30$38,111
Dec 20037602,21130.266.30$36,931
Nov 20037402,14728.804.60$31,178
Oct 20033832,04128.174.76$20,504
Sep 20035642,10626.314.75$24,841
Aug 20035642,08229.765.13$27,465
Jul 20037082,12929.415.17$31,831
Jun 20035572,00928.565.98$27,928
May 20035482,19826.595.97$27,699
Apr 20037482,13526.675.41$31,494
Mar 20037722,27531.146.10$37,909
Feb 20035902,10933.487.93$36,469
Jan 20037722,39430.315.58$36,763
Dec 20025842,31826.914.85$26,966
Nov 20027582,32624.664.14$28,315
Oct 20025722,36826.464.23$25,150
Sep 20025712,34027.443.64$24,175
Aug 20027552,46825.963.16$27,409
Jul 20025701,99624.583.06$20,122
Jun 20025691,76623.733.34$19,398
May 20027482,21024.663.58$26,366
Apr 20025482,34023.653.51$21,179
Mar 20025392,33122.003.10$19,090
Feb 20029262,15818.222.38$21,998
Jan 20025462,43917.172.38$15,169
Dec 20015402,40616.932.36$14,831
Nov 20017282,59718.072.41$19,402
Oct 20015482,81819.782.53$17,966
Sep 20017292,79324.262.25$23,973
Aug 20016942,76024.873.05$25,687
Jul 20017242,77723.933.20$26,204
Jun 20017382,76224.563.82$28,688
May 20015442,95725.524.31$26,620
Apr 20017242,84824.685.34$33,063
Mar 20019232,94824.545.38$38,500
Feb 20019122,49527.755.77$39,697
Jan 20013702,88327.478.40$34,378
Dec 20007233,25726.889.12$49,146
Nov 20001,0822,78032.215.66$50,580
Oct 20003573,06531.235.15$26,920
Sep 20007273,19431.875.19$39,735
Aug 20007323,29529.644.54$36,658
Jul 20007383,37828.534.09$34,870
Jun 20009053,32329.304.40$41,129
May 20005453,41627.263.68$27,427
Apr 20001,0673,39324.513.12$36,725
Mar 20005293,44628.422.86$24,889
Feb 20007163,28627.622.73$28,735
Jan 20009083,59525.272.48$31,863
Dec 19997303,77924.282.42$26,884
Nov 19997193,83823.192.43$26,015
Oct 19997154,28120.982.80$27,003
Sep 19998734,44421.752.62$30,626
Aug 19997304,61119.262.88$27,319
Jul 19999124,74917.892.37$27,582
Jun 19997174,51915.942.36$22,103
May 19997224,77315.792.32$22,479
Apr 19998644,69115.102.21$23,404
Mar 19997184,85412.471.84$17,877
Feb 19991,0884,7719.981.82$19,531
Jan 19995364,67710.381.90$14,450
Dec 19989135,5129.201.77$18,174
Nov 19987375,27310.892.19$19,551
Oct 19989155,97112.421.97$23,122
Sep 19989015,58412.592.08$22,973
Aug 19989126,08011.301.91$21,902
Jul 19989266,28711.742.24$24,937
Jun 19988996,32911.242.24$24,264
May 19989096,46312.622.21$25,731
Apr 19989156,60613.042.51$28,482
Mar 19988996,87112.802.31$27,375
Feb 19989246,41613.952.30$27,641
Jan 19981,1247,34614.702.15$32,352
Dec 19979217,42716.322.41$32,938
Nov 19979237,65918.193.09$40,442
Oct 19971,0878,22219.253.15$46,823
Sep 19979178,07117.742.95$40,116
Aug 19979198,27817.862.55$37,561
Jul 19971,2798,15917.582.25$40,818
Jun 19979148,68717.242.26$35,366
May 19971,4939,05318.972.31$49,221
Apr 19977488,30017.882.08$30,661
Mar 19971,3339,27218.951.94$43,240
Feb 19979308,21820.492.21$37,184
Jan 19971,30410,77223.483.54$68,748
Dec 19961,0939,47223.32$25,489
Nov 19961,1079,35921.97$24,321
Oct 19961,45410,41323.31$33,893
Sep 19961,2829,63122.22$28,486
Aug 19961,25510,81620.26$25,426
Jul 19961,09910,66619.55$21,485
Jun 19961,27110,52518.73$23,806
May 19961,31211,62219.43$25,492
Apr 19961,47011,02321.51$31,620
Mar 19961,67711,97519.38$32,500
Feb 19961,48911,54116.98$25,283
Jan 19961,49412,47617.07$25,503
Dec 19951,66312,59717.19$28,587
Nov 19951,64112,50516.00$26,256
Oct 19951,48212,62915.43$22,867
Sep 19951,47412,09916.18$23,849
Aug 19951,67313,06215.92$26,634
Jul 19951,66013,47515.24$25,298
Jun 19951,81813,52516.41$29,833
May 19951,64013,93517.56$28,798
Apr 19951,46512,98317.73$25,974
Mar 19951,80914,21516.44$29,740
Feb 19951,80713,54016.58$29,960
Jan 19951,77015,24515.92$28,178
Dec 19941,99415,21815.03$29,970
Nov 19941,72316,37815.90$27,396
Oct 19941,80313,14915.58$28,091
Sep 19941,97516,30315.29$30,198
Aug 19942,16817,77816.13$34,970
Jul 19941,81618,49817.56$31,889
Jun 19941,80016,63817.09$30,762
May 19942,51919,23015.88$40,002
Apr 19941,80419,13714.14$25,509
Mar 19942,36419,41812.46$29,455
Feb 19942,37119,11012.50$29,638
Jan 19942,35221,97312.66$29,776
Dec 19932,75521,68812.33$33,969
Nov 19932,37319,53414.49$34,385
Oct 19933,04621,71915.85$48,279
Sep 19932,33920,63715.03$35,155
Aug 19932,45621,40015.66$38,461
Jul 19932,52019,92115.46$38,959
Jun 19932,49319,40016.79$41,857
May 19932,72119,95517.68$48,107
Apr 19932,90918,22818.05$52,507
Mar 19932,74718,56118.14$49,831
Feb 19932,72114,75917.90$48,706
Jan 19933,24617,25716.93$54,955

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 2023 — as filed, then multipliedworked
Oil                  110 bbl  × $ 85.44 =     $9,398
Casinghead gas         0 Mcf  × $  3.09 =         $0

────────────────────────────────────────────────────
Month total                                   $9,398

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/O/6561 is the state's own key, not one this site invented.