LOCKHART

Operated by WINN OPERATING, LLC (P-5 100109) in the MARTIN (MCKEE) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 4084District 08Field 57774498Hydrogen sulphide fieldOilCasinghead gasSaveExport
Value, all time
$3.5 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 10 leases and 72 wells, and the rule below applies to all of them.

Discovered
1945-12-31
as the register files it
Field class
Oil
the register's own label
Between wells
933 ft
minimum
From a lease line
330 ft
minimum

A drilling unit in this field needs at least 40 acres.

The register flags this field for hydrogen sulphide. That is a poisonous gas that occurs naturally in some formations. The flag is a property of the field as the Commission records it. It is not a measurement taken at this lease, and it is not a statement that gas is escaping anywhere.

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
OilDisposition134,490 bbl$3,384,330
Casinghead gasProduction48,472 Mcf$128,329
Total$3,512,659

18,521 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 (11)

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 32.1997, -102.7540. A lease has no coordinate of its own — that point is the mean of its wells, and they span 1.5 miles.

32.19974, -102.76119 · 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
81.8%
9 of 11 wells
With a plug date
0.0%
0 of 11 wells
Median depth
8,850 ft
11 wells filed one
Completion to plug
no well filed both dates

What the state filed about each well

On the RRC proration schedule
981.8%
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.
218.2%

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

Total depth in feet, 11 of 11 wells. Median 8,850 ft, with the middle half between 8,615 and 8,889 ft; the shallowest is 8,252 ft and the deepest 9,129 ft. The median is published rather than the mean, because a single mis-keyed depth moves a mean and cannot move a median.

When they were last completed

Last completion by decade, 11 of 11 wells, Nov 1982 – Aug 2013. This is the LAST completion filed on each wellbore, not the first — a well recompleted in 2019 counts once, in the 2010s.

Completions filed
Nov 1982 – Aug 2013
11 of 11 wells

11 wells

42-0030524038,850 ftAug 2013Yes
42-0030523298,854 ftJan 2010
42-00332434138,880 ftSep 2009Yes
42-0030523411W8,897 ftAug 2009Yes
42-00305233108,389 ftFeb 1997Yes
42-00305235128,848 ftMar 1996Yes
42-00334965999,129 ftMar 1996Yes
42-0030524368,332 ftJul 1991
42-0030524258,252 ftJan 1990Yes
42-0030518518,899 ftDec 1989Yes
42-0030523928,840 ftNov 1982Yes

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 20230085.443.09$0
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 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 20190046.033.23$0
Dec 20180046.594.19$0
Nov 20180052.934.24$0
Oct 20180061.443.40$0
Sep 20180059.543.11$0
Aug 20180059.403.07$0
Jul 20180065.142.93$0
Jun 20180060.183.08$0
May 20180065.382.90$0
Apr 20180063.842.90$0
Mar 20180061.222.79$0
Feb 20180061.782.77$0
Jan 20180062.874.01$0
Dec 20170057.272.92$0
Nov 20170055.423.12$0
Oct 20170049.292.98$0
Sep 20170047.523.09$0
Aug 20170045.373.00$0
Jul 20170043.873.09$0
Jun 20170042.493.09$0
May 20170045.373.26$0
Apr 20170047.933.21$0
Mar 20170046.772.98$0
Feb 20170050.452.95$0
Jan 20170049.413.42$0
Dec 20160048.763.72$0
Nov 20160042.492.64$0
Oct 20160046.193.09$0
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 20160036.561.99$0
Mar 20160033.011.79$0
Feb 20160026.472.06$0
Jan 20160027.352.36$0
Dec 20150032.362.00$0
Nov 20150038.792.17$0
Oct 20150043.552.43$0
Sep 20150042.992.76$0
Aug 20150040.162.87$0
Jul 20150048.152.95$0
Jun 20150056.152.88$0
May 20150055.212.96$0
Apr 20150049.822.71$0
Mar 20150042.892.93$0
Feb 20150044.662.98$0
Jan 20150043.433.10$0
Dec 20140054.693.59$0
Nov 20140070.464.25$0
Oct 20140078.303.90$0
Sep 20140086.164.05$0
Aug 20140089.394.04$0
Jul 20140096.564.18$0
Jun 20140098.164.74$0
May 20140094.734.73$0
Apr 20140095.944.81$0
Mar 20140095.895.06$0
Feb 20140097.406.19$0
Jan 20140090.404.86$0
Dec 20130091.824.35$0
Nov 20130088.853.74$0
Oct 20130097.423.78$0
Sep 201300104.113.72$0
Aug 201300104.253.52$0
Jul 201300102.523.72$0
Jun 20130094.403.93$0
May 20130094.834.15$0
Apr 20130093.964.28$0
Mar 20130093.623.91$0
Feb 20130091.233.42$0
Jan 20130091.603.42$0
Dec 20120086.773.42$0
Nov 20120086.953.62$0
Oct 20120089.383.40$0
Sep 20120094.672.92$0
Aug 20120092.662.91$0
Jul 20120085.133.02$0
Jun 20120079.822.52$0
May 20120091.612.49$0
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 2009286074.593.75$21,333
Oct 200912131372.544.11$10,064
Sep 20097829565.543.06$6,016
Aug 200912331967.423.22$9,319
Jul 20092549561.133.46$15,856
Jun 200925211466.163.90$17,116
May 200919213154.743.93$11,024
Apr 20092989446.773.59$14,275
Mar 20093076642.144.06$13,205
Feb 20092218332.814.63$7,636
Jan 200936510335.865.37$13,642
Dec 200825310937.105.98$10,038
Nov 200834510455.496.86$19,858
Oct 200824311175.246.92$19,052
Sep 200840868101.767.88$42,054
Aug 2008344117114.228.48$40,284
Jul 2008165112131.0811.39$22,904
Jun 2008226112131.3313.03$31,140
May 2008338115123.1711.57$42,963
Apr 2008278114110.3110.45$31,858
Mar 2008306123101.909.66$32,370
Feb 200828210292.538.77$26,988
Jan 200842610690.388.21$39,372
Dec 200731010688.337.30$28,156
Nov 200729110191.677.29$27,412
Oct 200729510482.856.92$25,161
Sep 20072658975.846.24$20,653
Aug 200725410269.066.39$18,193
Jul 200730511270.906.39$22,340
Jun 20071288762.007.55$8,593
May 20073758958.747.85$22,726
Apr 20071199559.617.81$7,835
Mar 200730710156.927.30$18,212
Feb 20072908755.108.22$16,694
Jan 200732911350.306.73$17,309
Dec 200622911456.656.92$13,762
Nov 200612710754.207.62$7,698
Oct 200625512054.906.01$14,721
Sep 200631711960.085.04$19,645
Aug 200626110868.717.34$18,726
Jul 200646712469.376.34$33,182
Jun 200625211966.286.38$17,462
May 200634811866.016.42$23,730
Apr 200641613064.397.36$27,743
Mar 200644213656.707.08$26,025
Feb 200630511157.597.75$18,425
Jan 200629611260.598.93$18,935
Dec 200533718354.9413.42$20,970
Nov 20054304754.6910.59$24,014
Oct 200534012658.3413.80$21,574
Sep 20052359461.4512.08$15,576
Aug 200533012561.519.80$21,523
Jul 200534512255.697.84$20,170
Jun 200542511552.337.38$23,089
May 200531512545.226.65$15,076
Apr 200528912549.207.36$15,139
Mar 200546614950.377.15$24,539
Feb 200532213445.226.31$15,407
Jan 200540013943.166.32$18,143
Dec 200439113039.866.75$16,463
Nov 200435713845.286.33$17,039
Oct 200440614149.706.52$21,097
Sep 200440114743.245.28$18,116
Aug 200443814242.375.55$19,346
Jul 200441414838.286.08$16,748
Jun 200439814736.106.43$15,313
May 200444915337.486.49$17,822
Apr 200440013234.475.86$14,561
Mar 200434614134.365.53$12,668
Feb 200443612632.455.51$14,842
Jan 200448613932.036.30$16,442
Dec 200335313730.266.30$11,545
Nov 200339213728.804.60$11,919
Oct 200344914328.174.76$13,329
Sep 200346814126.314.75$12,983
Aug 200336313929.765.13$11,516
Jul 200334713429.415.17$10,898
Jun 200351514928.565.98$15,600
May 200345216926.595.97$13,028
Apr 200338515226.675.41$11,090
Mar 200340916231.146.10$13,724
Feb 200347414533.487.93$17,019
Jan 200337216030.315.58$12,168
Dec 200248516226.914.85$13,838
Nov 200238216024.664.14$10,082
Oct 200247017426.464.23$13,172
Sep 200250918027.443.64$14,621
Aug 200250015625.963.16$13,474
Jul 200245118524.583.06$11,652
Jun 200248216323.733.34$11,982
May 200239316624.663.58$10,286
Apr 2002440023.653.51$10,406
Mar 200246117122.003.10$10,673
Feb 200254216018.222.38$10,255
Jan 200245716817.172.38$8,246
Dec 200138517016.932.36$6,920
Nov 200149215718.072.41$9,268
Oct 200145418319.782.53$9,443
Sep 200137419724.262.25$9,517
Aug 200139018024.873.05$10,249
Jul 200135620823.933.20$9,184
Jun 200141120324.563.82$10,870
May 200149622125.524.31$13,610
Apr 200148319424.685.34$12,955
Mar 200147819924.545.38$12,800
Feb 200135318927.755.77$10,886
Jan 200159420727.478.40$18,056
Dec 200033021026.889.12$10,786
Nov 200043419432.215.66$15,077
Oct 200053420331.235.15$17,721
Sep 200014421631.875.19$5,710
Aug 200045622529.644.54$14,538
Jul 200054038228.534.09$16,968
Jun 200035840529.304.40$12,270
May 200039943027.263.68$12,459
Apr 200045624524.513.12$11,940
Mar 200054147528.422.86$16,734
Feb 200038129427.622.73$11,325
Jan 200050228125.272.48$13,383
Dec 199951115824.282.42$12,790
Nov 199950619823.192.43$12,216
Oct 199950915720.982.80$11,119
Sep 199949416021.752.62$11,164
Aug 199952215919.262.88$10,511
Jul 19995165217.892.37$9,355
Jun 199951140515.942.36$9,102
May 199950836615.792.32$8,871
Apr 199945441415.102.21$7,770
Mar 199955335112.471.84$7,541
Feb 19996902729.981.82$7,381
Jan 199952620210.381.90$5,844
Dec 19986042209.201.77$5,947
Nov 199850637110.892.19$6,321
Oct 199855128412.421.97$7,403
Sep 199858338112.592.08$8,133
Aug 199864747311.301.91$8,213
Jul 199861439311.742.24$8,088
Jun 199845028111.242.24$5,687
May 199862635612.622.21$8,686
Apr 199859028713.042.51$8,413
Mar 199856552612.802.31$8,447
Feb 199857853413.952.30$9,291
Jan 199846755514.702.15$8,061
Dec 199757753116.322.41$10,697
Nov 199758755618.193.09$12,395
Oct 199770460819.253.15$15,467
Sep 199772061217.742.95$14,581
Aug 199783721317.862.55$15,493
Jul 199770934117.582.25$13,230
Jun 199784927717.242.26$15,262
May 19971,00330818.972.31$19,738
Apr 199793223817.882.08$17,160
Mar 199773020518.951.94$14,231
Feb 199789819320.492.21$18,826
Jan 199792715523.483.54$22,315
Dec 199674814223.32$17,443
Nov 199662512421.97$13,731
Oct 199682021423.31$19,114
Sep 199676520622.22$16,998
Aug 199664615320.26$13,088
Jul 199667014919.55$13,099
Jun 199644711118.73$8,372
May 199665735119.43$12,766
Apr 19967974121.51$17,143
Mar 19968507719.38$16,473
Feb 199672128016.98$12,243
Jan 199689922117.07$15,346
Dec 19951,05831017.19$18,187
Nov 19951,09928016.00$17,584
Oct 19959699315.43$14,952
Sep 19951,01537616.18$16,423
Aug 19951,09235115.92$17,385
Jul 19951,17735015.24$17,937
Jun 19951,08124516.41$17,739
May 19951,10630617.56$19,421
Apr 19951,07541717.73$19,060
Mar 19951,07320416.44$17,640
Feb 19951,13718816.58$18,851
Jan 19951,17919715.92$18,770
Dec 19941,34910615.03$20,275
Nov 19941,5229115.90$24,200
Oct 19941,52723215.58$23,791
Sep 19941,5979815.29$24,418
Aug 19942,00028316.13$32,260
Jul 19941,84644817.56$32,416
Jun 19942,03342617.09$34,744
May 19941,91739715.88$30,442
Apr 19942,14652914.14$30,344
Mar 19942,23962012.46$27,898
Feb 19942,11156312.50$26,388
Jan 19942,27558512.66$28,802
Dec 19931,98958512.33$24,524
Nov 19931,84055714.49$26,662
Oct 19931,98358415.85$31,431
Sep 19931,69456115.03$25,461
Aug 19932,23750315.66$35,031
Jul 19932,27855515.46$35,218
Jun 19932,25157016.79$37,794
May 19932,36550717.68$41,813
Apr 19931,76957518.05$31,930
Mar 19932,0721,32118.14$37,586
Feb 19931,6841,12117.90$30,144
Jan 19932,3641,31816.93$40,023

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.

Nov 2009 — as filed, then multipliedworked
Oil                  286 bbl  × $ 74.59 =    $21,333
Casinghead gas         0 Mcf  × $  3.75 =         $0

────────────────────────────────────────────────────
Month total                                  $21,333

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. 08/O/4084 is the state's own key, not one this site invented.