LOCKHART 82

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 8185District 10Field 30526750OilCasinghead gasSaveExport
Value, all time
$1.8 M
Oct 2009 – May 2026
Value, last 12 filed months
$66 k
at the published price for each month
Months reported
200
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.

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
OilDisposition18,766 bbl$1,317,326
Casinghead gasProduction149,447 Mcf$532,593
Total$1,849,919

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 36.0647, -100.1273. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.5 miles.

36.06464, -100.12730 · 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 2 wells
With a plug date
0.0%
0 of 2 wells
Median depth
7,795 ft
2 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.
2100.0%

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 7,590 and 8,000 ft, median 7,795 ft, over the 2 wells that filed a depth.

Completions filed
Feb 2004 – Jan 2011
2 of 2 wells

2 wells

42-295336013HA7,590 ftJan 2011
42-2953272318,000 ftFeb 2004

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 (200)

Volume × price = value, one row per cycle. The price columns are the same series published on the prices page — nothing here is modelled.

200 months

May 2026171313106.413.05$19,149
Apr 2026026798.932.87$766
Mar 2026026989.753.15$847
Feb 2026027163.503.75$1,016
Jan 202616232859.138.00$12,202
Dec 2025034756.664.41$1,531
Nov 2025035158.593.93$1,378
Oct 2025028259.383.30$932
Sep 202517257762.743.08$12,567
Aug 2025036363.933.01$1,094
Jul 2025050466.743.32$1,671
Jun 202516852266.483.13$12,802
May 2025045660.553.23$1,474
Apr 2025031362.363.54$1,109
Mar 202510743667.704.27$9,105
Feb 2025024070.884.34$1,042
Jan 202516766474.324.28$15,252
Dec 20241661,04068.993.12$14,699
Nov 2024075269.052.20$1,653
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 202402784.451.66$45
Mar 20240080.301.55$0
Feb 202401376.091.78$23
Jan 20240073.023.30$0
Dec 20230071.262.61$0
Nov 202304377.892.81$121
Oct 2023024685.443.09$759
Sep 2023033589.042.74$916
Aug 202316752780.522.67$14,855
Jul 2023053174.852.64$1,403
Jun 2023041668.962.26$940
May 202317639270.622.23$13,302
Apr 2023032178.122.24$718
Mar 2023031172.852.39$744
Feb 202316933175.112.47$13,510
Jan 2023039276.533.39$1,328
Dec 2022034076.415.73$1,948
Nov 202214141685.005.65$14,334
Oct 2022051687.185.86$3,026
Sep 202216946284.888.16$18,116
Aug 2022049994.529.13$4,554
Jul 20220530101.587.54$3,997
Jun 2022169549115.097.98$23,830
May 20220472109.378.43$3,980
Apr 20220405104.226.84$2,769
Mar 20220602108.885.08$3,056
Feb 202202691.054.86$126
Jan 202217038881.844.54$15,673
Dec 2021045371.323.90$1,766
Nov 2021036877.435.24$1,927
Oct 2021038379.795.71$2,188
Sep 202116859769.865.35$14,931
Aug 2021046366.024.22$1,954
Jul 202118226070.783.98$13,917
Jun 2021052469.493.38$1,771
May 2021050663.483.02$1,527
Apr 202117453860.362.76$11,987
Mar 2021060561.302.72$1,644
Feb 202116942857.805.55$12,143
Jan 2021051250.412.81$1,439
Dec 202016970144.642.68$9,420
Nov 2020049338.772.71$1,334
Oct 2020044936.972.48$1,113
Sep 202015651337.091.99$6,807
Aug 2020047539.982.39$1,133
Jul 202019655438.371.83$8,532
Jun 202018458134.901.69$7,404
May 2020060216.921.81$1,092
Apr 2020060114.751.80$1,084
Mar 202018266430.341.86$6,754
Feb 2020062649.881.98$1,240
Jan 202017870857.252.09$11,674
Dec 201917697759.012.30$12,637
Nov 2019036055.302.75$990
Oct 2019032053.472.42$774
Sep 2019042055.052.66$1,116
Aug 201917261253.112.30$10,545
Jul 201917875356.272.46$11,868
Jun 201918880952.782.49$11,938
May 201901,24558.482.74$3,412
Apr 201907862.632.75$215
Mar 2019090256.803.06$2,762
Feb 20191811,03950.852.79$12,105
Jan 201909546.033.23$307
Dec 201817253746.594.19$10,261
Nov 2018078152.934.24$3,309
Oct 2018084561.443.40$2,871
Sep 201817791859.543.11$13,392
Aug 2018078059.403.07$2,392
Jul 201817788065.142.93$14,110
Jun 201817381560.183.08$12,919
May 2018090665.382.90$2,628
Apr 201816888763.842.90$13,298
Mar 201817466061.222.79$12,492
Feb 20180061.782.77$0
Jan 2018187062.874.01$11,757
Dec 2017019757.272.92$576
Nov 201719011755.423.12$10,895
Oct 201717974149.292.98$11,034
Sep 2017086347.523.09$2,664
Aug 20171721,19145.373.00$11,382
Jul 20171701,37343.873.09$11,697
Jun 20173431,52942.493.09$19,295
May 201701,19945.373.26$3,913
Apr 201701147.933.21$35
Mar 20171795446.772.98$8,533
Feb 201706450.452.95$189
Jan 2017010749.413.42$366
Dec 201617627348.763.72$9,598
Nov 201617849842.492.64$8,880
Oct 2016065346.193.09$2,018
Sep 201618058441.553.10$9,290
Aug 2016060341.442.92$1,763
Jul 201617849941.622.92$8,868
Jun 201618252945.352.69$9,675
May 201618267442.521.99$9,081
Apr 2016378836.561.99$1,679
Mar 201618289533.011.79$7,613
Feb 201618581026.472.06$6,568
Jan 201617564327.352.36$6,307
Dec 201501,00432.362.00$2,009
Nov 201517881238.792.17$8,664
Oct 201517849043.552.43$8,941
Sep 201535257142.992.76$16,708
Aug 201517550940.162.87$8,490
Jul 2015049648.152.95$1,461
Jun 2015037056.152.88$1,067
May 20153531,09255.212.96$22,716
Apr 2015099449.822.71$2,690
Mar 201501,60742.892.93$4,716
Feb 20155631,16744.662.98$28,617
Jan 201501,21443.433.10$3,764
Dec 20141781,41554.693.59$14,817
Nov 201401,40770.464.25$5,982
Oct 20145851,75378.303.90$52,644
Sep 201401,96686.164.05$7,953
Aug 20143682,20989.394.04$41,809
Jul 201402,51296.564.18$10,499
Jun 201402,87698.164.74$13,623
May 201401,06694.734.73$5,039
Apr 20145512,30495.944.81$63,943
Mar 201482,29395.895.06$12,362
Feb 20145132,26297.406.19$63,973
Jan 201401,93390.404.86$9,396
Dec 20131852,23791.824.35$26,728
Nov 20131763,19688.853.74$27,585
Oct 20135813,95197.423.78$71,533
Sep 20131742,451104.113.72$27,227
Aug 20130662104.253.52$2,332
Jul 20131742,247102.523.72$26,192
Jun 20131743,39994.403.93$29,795
May 20133523,06894.834.15$46,110
Apr 20136843,59193.964.28$79,647
Mar 20131793,02893.623.91$28,606
Feb 201303,18491.233.42$10,889
Jan 201337489591.603.42$37,319
Dec 20121803,18186.773.42$26,498
Nov 20123573,28786.953.62$42,956
Oct 20123653,19489.383.40$43,482
Sep 20125222,37494.672.92$56,346
Aug 20123464,59892.662.91$45,432
Jul 20123432,30685.133.02$36,166
Jun 201202579.822.52$63
May 20125893,42691.612.49$62,483
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 20100472.633.98$16
Aug 2010010073.684.42$442
Jul 20100072.554.74$0
Jun 20100070.364.91$0
May 201002971.124.24$123
Apr 201001581.694.12$62
Mar 20100778.394.39$31
Feb 201004473.585.44$239
Jan 20100874.365.96$48
Dec 200903871.445.48$208
Nov 20090874.593.75$30
Oct 200906972.544.11$284

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
Oil                  171 bbl  × $106.41 =    $18,196
Casinghead gas       313 Mcf  × $  3.05 =       $953

────────────────────────────────────────────────────
Month total                                  $19,149

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/8185 is the state's own key, not one this site invented.