LOCKHART "B"

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

Oil lease lease 4892District 10Field 30526750NGPA filingOilCasinghead gasSaveExport
Value, all time
$6.6 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 140 leases and 207 wells, and the rule below applies to all of them.

Discovered
1957-04-27
as the register files it
Field class
Oil and gas
the register's own label
Between wells
660 ft
minimum
From a lease line
467 ft
minimum

A drilling unit in this field needs at least 160 acres. The field rule took effect on 2009-09-29.

The Commission's schedule remark for this field reads: FELDMAN (TONKAWA) FIELD.

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
OilDisposition67,567 bbl$4,507,534
Casinghead gasProduction652,645 Mcf$2,070,326
Total$6,577,860

17,458 Mcf of this lease's gas, across 20 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 36.0171, -100.1383. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.8 miles.

36.01891, -100.13728 · 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
100.0%
3 of 3 wells
With a plug date
66.7%
2 of 3 wells
Median depth
7,850 ft
3 wells filed one
Completion to plug
32.2 years
median over 1 well

What the state filed about each well

On the RRC proration schedule
3100.0%
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.
00.0%

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 7,635 and 7,850 ft, median 7,850 ft, over the 3 wells that filed a depth.

Completions filed
Sep 1981 – Jan 2012
2 of 3 wells; 1 filed none
Plug dates filed
Nov 2011 – Nov 2013
2 of 3 wells; 1 filed none

Last completion to plug: a median of 32.2 years across the 1 well that filed both dates, with the middle half between 32.2 years and 32.2 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

3 wells

42-2113143427,850 ftNov 2011Yes
42-21134966405HB7,635 ftJan 2012Yes
42-2113136517,850 ftSep 1981Nov 2013Yes

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 2024089171.372.28$2,033
Sep 20240369.612.36$7
Aug 202402475.632.06$50
Jul 202402179.932.15$45
Jun 202402378.082.63$61
May 202402578.812.20$55
Apr 202401984.451.66$32
Mar 20240080.301.55$0
Feb 202402676.091.78$46
Jan 20240073.023.30$0
Dec 202301171.262.61$29
Nov 202302577.892.81$70
Oct 202302485.443.09$74
Sep 20230089.042.74$0
Aug 20230080.522.67$0
Jul 202302174.852.64$55
Jun 20230068.962.26$0
May 20230070.622.23$0
Apr 20230078.122.24$0
Mar 202302272.852.39$53
Feb 20230075.112.47$0
Jan 20230076.533.39$0
Dec 20220076.415.73$0
Nov 202202285.005.65$124
Oct 20220087.185.86$0
Sep 20220084.888.16$0
Aug 202201494.529.13$128
Jul 2022019101.587.54$143
Jun 202200115.097.98$0
May 202200109.378.43$0
Apr 2022014104.226.84$96
Mar 2022016108.885.08$81
Feb 20220091.054.86$0
Jan 202201881.844.54$82
Dec 20210771.323.90$27
Nov 202102977.435.24$152
Oct 202102079.795.71$114
Sep 202105069.865.35$268
Aug 202107066.024.22$295
Jul 202103570.783.98$139
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 2020166037.091.99$6,157
Aug 20200039.982.39$0
Jul 20200038.371.83$0
Jun 20200034.901.69$0
May 2020011316.921.81$205
Apr 20203842,64914.751.80$10,444
Mar 20201843,06830.341.86$11,277
Feb 20201863,10249.881.98$15,422
Jan 20201853,35057.252.09$17,609
Dec 20191822,19259.012.30$15,791
Nov 201918738355.302.75$11,395
Oct 201901,06553.472.42$2,576
Sep 20191801,19555.052.66$13,084
Aug 20191681,28753.112.30$11,888
Jul 20191781,52656.272.46$13,770
Jun 20191801,42052.782.49$13,038
May 20193672,72458.482.74$28,927
Apr 20191802,93162.632.75$19,336
Mar 20191822,13856.803.06$16,884
Feb 2019077250.852.79$2,156
Jan 20193692,37546.033.23$24,652
Dec 20181803,07646.594.19$21,261
Nov 20183653,34352.934.24$33,485
Oct 20181813,66161.443.40$23,561
Sep 20183623,77959.543.11$33,299
Aug 20181724,00559.403.07$22,498
Jul 20181773,04065.142.93$20,443
Jun 20185223,57560.183.08$42,414
May 20181813,79165.382.90$22,831
Apr 20183574,40663.842.90$35,572
Mar 20181724,99261.222.79$24,442
Feb 20185284,40461.782.77$44,802
Jan 20183625,17962.874.01$43,523
Dec 20173635,19257.272.92$35,958
Nov 20175366,19955.423.12$49,036
Oct 20171836,41349.292.98$28,154
Sep 20175385,45647.523.09$42,410
Aug 20173454,99145.373.00$30,648
Jul 20171774,78543.873.09$22,538
Jun 20175324,54342.493.09$36,630
May 20177145,05345.373.26$48,884
Apr 20171775,10347.933.21$24,872
Mar 20173545,88546.772.98$34,116
Feb 20177385,19450.452.95$52,568
Jan 20171784,94249.413.42$25,691
Dec 20167076,23248.763.72$57,674
Nov 20165436,19342.492.64$39,449
Oct 20163566,45446.193.09$36,388
Sep 20165345,94141.553.10$40,609
Aug 20167175,81841.442.92$46,726
Jul 20163535,95241.622.92$32,098
Jun 20165285,56645.352.69$38,894
May 20165346,02142.521.99$34,694
Apr 20167206,03436.561.99$38,337
Mar 20163656,73633.011.79$24,133
Feb 20165586,42026.472.06$28,019
Jan 20167265,67727.352.36$33,279
Dec 2015056732.362.00$1,135
Nov 20153721,60438.792.17$17,906
Oct 20151832,36643.552.43$13,711
Sep 20153603,23442.992.76$24,397
Aug 20155364,26940.162.87$33,788
Jul 20153464,64448.152.95$30,337
Jun 20155335,17656.152.88$44,850
May 20155356,19055.212.96$47,832
Apr 20151832,93249.822.71$17,053
Mar 20153641,14142.892.93$18,960
Feb 20153701,65344.662.98$21,444
Jan 20153733,58743.433.10$27,321
Dec 20145563,26354.693.59$42,126
Nov 20145614,93670.464.25$60,515
Oct 20143695,58278.303.90$50,668
Sep 20145486,19486.164.05$72,273
Aug 20145385,92489.394.04$71,996
Jul 20145435,28196.564.18$74,505
Jun 20143635,78798.164.74$63,044
May 20145304,55594.734.73$71,736
Apr 20145517,22395.944.81$87,599
Mar 20147398,54095.895.06$114,048
Feb 20148958,46697.406.19$139,594
Jan 20147238,16390.404.86$105,037
Dec 201371011,20391.824.35$113,975
Nov 20137217,29088.853.74$91,313
Oct 20138538,81697.423.78$116,418
Sep 20131,06310,580104.113.72$150,003
Aug 20135196,125104.253.52$75,682
Jul 20135263,856102.523.72$68,261
Jun 20136908,34294.403.93$97,949
May 20138899,92594.834.15$125,483
Apr 20131,1947,91193.964.28$146,068
Mar 20135779,88193.623.91$92,682
Feb 20137728,41891.233.42$99,218
Jan 20131,14412,46191.603.42$147,406
Dec 20121,28615,08286.773.42$163,169
Nov 20121,25417,90886.953.62$173,951
Oct 20121,45920,45289.383.40$199,936
Sep 20121,79924,84894.672.92$242,828
Aug 20121,94422,65192.662.91$246,004
Jul 20122,30225,07185.133.02$271,704
Jun 20123,01528,49379.822.52$312,432
May 20124,78630,41191.612.49$514,118
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 20100073.585.44$0
Jan 20100074.365.96$0
Dec 20090071.445.48$0
Nov 20090074.593.75$0
Oct 20090072.544.11$0
Sep 20090065.543.06$0
Aug 20090067.423.22$0
Jul 20090061.133.46$0
Jun 20090066.163.90$0
May 20090054.743.93$0
Apr 20090046.773.59$0
Mar 20090042.144.06$0
Feb 20090032.814.63$0
Jan 20090035.865.37$0
Dec 20080037.105.98$0
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 20081860131.3313.03$24,427
May 200800123.1711.57$0
Apr 200800110.3110.45$0
Mar 20082040101.909.66$20,788
Feb 20080092.538.77$0
Jan 20080090.388.21$0
Dec 20070088.337.30$0
Nov 2007205091.677.29$18,792
Oct 2007202082.856.92$16,736
Sep 20070075.846.24$0
Aug 20070069.066.39$0
Jul 2007202070.906.39$14,322
Jun 20070062.007.55$0
May 20070058.747.85$0
Apr 20070059.617.81$0
Mar 20070056.927.30$0
Feb 2007202055.108.22$11,130
Jan 20070050.306.73$0
Dec 20060056.656.92$0
Nov 2006196054.207.62$10,623
Oct 20060054.906.01$0
Sep 20060060.085.04$0
Aug 2006201068.717.34$13,811
Jul 2006200069.376.34$13,874
Jun 20060066.286.38$0
May 20060066.016.42$0
Apr 2006190064.397.36$12,234
Mar 20060056.707.08$0
Feb 2006192057.597.75$11,057
Jan 20060060.598.93$0
Dec 20050054.9413.42$0
Nov 20050054.6910.59$0
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 2005191045.226.31$8,637
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 20040134.475.86$6
Mar 20040334.365.53$17
Feb 200407032.455.51$386
Jan 200417010232.036.30$6,088
Dec 2003010130.266.30$636
Nov 200309828.804.60$450
Oct 200318212028.174.76$5,698
Sep 2003013426.314.75$636
Aug 200318410929.765.13$6,035
Jul 2003012729.415.17$657
Jun 200318913028.565.98$6,176
May 2003011126.595.97$663
Apr 2003011626.675.41$627
Mar 200307431.146.10$451
Feb 2003010733.487.93$848
Jan 200318621930.315.58$6,860
Dec 2002021026.914.85$1,019
Nov 200220017224.664.14$5,644
Oct 2002012326.464.23$520
Sep 200208527.443.64$309
Aug 2002011525.963.16$364
Jul 20021957424.583.06$5,020
Jun 200209723.733.34$324
May 2002011524.663.58$412
Apr 2002012923.653.51$453
Mar 200216714222.003.10$4,115
Feb 2002011418.222.38$271
Jan 200219210017.172.38$3,534
Dec 200108516.932.36$201
Nov 200108418.072.41$202
Oct 200109019.782.53$228
Sep 20011959924.262.25$4,954
Aug 2001011424.873.05$348
Jul 200109623.933.20$307
Jun 200108124.563.82$310
May 20011936225.524.31$5,192
Apr 200106724.685.34$357
Mar 200108324.545.38$446
Feb 200102727.755.77$156
Jan 20010027.478.40$0
Dec 20000026.889.12$0
Nov 20000132.215.66$6
Oct 2000193131.235.15$6,033
Sep 20000131.875.19$5
Aug 2000203129.644.54$6,021
Jul 20000028.534.09$0
Jun 20000029.304.40$0
May 20000027.263.68$0
Apr 20000024.513.12$0
Mar 20000028.422.86$0
Feb 20000027.622.73$0
Jan 20000025.272.48$0
Dec 19990024.282.42$0
Nov 19990023.192.43$0
Oct 19990020.982.80$0
Sep 19990021.752.62$0
Aug 19990019.262.88$0
Jul 19990017.892.37$0
Jun 199901315.942.36$31
May 19990015.792.32$0
Apr 19990015.102.21$0
Mar 19990012.471.84$0
Feb 1999009.981.82$0
Jan 19990010.381.90$0
Dec 1998009.201.77$0
Nov 19980010.892.19$0
Oct 19980012.421.97$0
Sep 199821231312.592.08$3,321
Aug 1998072311.301.91$1,379
Jul 199820776011.742.24$4,131
Jun 1998075011.242.24$1,678
May 199820574012.622.21$4,220
Apr 1998073313.042.51$1,836
Mar 1998057612.802.31$1,330
Feb 1998064613.952.30$1,485
Jan 199818467214.702.15$4,153
Dec 199718985816.322.41$5,153
Nov 199709118.193.09$281
Oct 1997036919.253.15$1,162
Sep 199718976917.742.95$5,625
Aug 1997088417.862.55$2,258
Jul 199718951617.582.25$4,482
Jun 1997026917.242.26$607
May 199707318.972.31$169
Apr 1997046617.882.08$971
Mar 199718896718.951.94$5,438
Feb 199736477220.492.21$9,161
Jan 1997044623.483.54$1,579
Dec 1996054523.32$0
Nov 199619478821.97$4,262
Oct 199619081523.31$4,429
Sep 199617978922.22$3,977
Aug 1996058820.26$0
Jul 19960519.55$0
Jun 1996012418.73$0
May 1996059319.43$0
Apr 199619199021.51$4,108
Mar 199601,03119.38$0
Feb 199619199416.98$3,243
Jan 19961861,03617.07$3,175
Dec 19951851,08517.19$3,180
Nov 19951881,08616.00$3,008
Oct 19953711,16815.43$5,725
Sep 19951961,20916.18$3,171
Aug 19951861,47815.92$2,961
Jul 19955661,68515.24$8,626
Jun 199555575216.41$9,108
May 199555569717.56$9,746
Apr 19950017.73$0
Mar 19950016.44$0
Feb 19950016.58$0
Jan 19950015.92$0
Dec 19940015.03$0
Nov 19940015.90$0
Oct 19940015.58$0
Sep 19940015.29$0
Aug 19940016.13$0
Jul 19940017.56$0
Jun 19940017.09$0
May 19940015.88$0
Apr 19940014.14$0
Mar 19940012.46$0
Feb 19940012.50$0
Jan 19940012.66$0
Dec 19930012.33$0
Nov 19930014.49$0
Oct 19930015.85$0
Sep 19930015.03$0
Aug 19930015.66$0
Jul 19930015.46$0
Jun 19930016.79$0
May 19930017.68$0
Apr 19930018.05$0
Mar 19930018.14$0
Feb 19930017.90$0
Jan 19930016.93$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.

Oct 2024 — as filed, then multipliedworked
Oil                    0 bbl  × $ 71.37 =         $0
Casinghead gas       891 Mcf  × $  2.28 =     $2,033

────────────────────────────────────────────────────
Month total                                   $2,033

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/4892 is the state's own key, not one this site invented.