WALTON, J. B., -F-

Operated by HILCORP ENERGY COMPANY (P-5 386310) in the KEYSTONE (COLBY) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 19871District 08Field 49129132Hydrogen sulphide fieldNGPA filingOilCasinghead gasSaveExport
Value, all time
$3.1 M
Jan 1993 – May 2026
Value, last 12 filed months
$3 k
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 157 leases and 1,140 wells, and the rule below applies to all of them.

Discovered
1939-12-31
as the register files it
Field class
Oil and gas
the register's own label
Between wells
880 ft
minimum
From a lease line
330 ft
minimum

A drilling unit in this field needs at least 20 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.

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
NGPA6none

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
OilDisposition43,358 bbl$1,917,087
Casinghead gasProduction308,344 Mcf$1,153,857
Total$3,070,944

67,837 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 (8)

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 31.9367, -103.0763. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.8 miles.

31.93577, -103.07776 · 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
62.5%
5 of 8 wells
With a plug date
62.5%
5 of 8 wells
Median depth
3,565 ft
7 wells filed one
Completion to plug
26.6 years
median over 5 wells

What the state filed about each well

On the RRC proration schedule
562.5%
A plug date is filed
562.5%
BothOn the schedule and plugged. Neither fact cancels the other.
562.5%
NeitherNo plug date, and not on the schedule.
337.5%

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, 7 of 8 wells. Median 3,565 ft, with the middle half between 3,559 and 3,625 ft; the shallowest is 3,410 ft and the deepest 4,710 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, 8 of 8 wells, Dec 1965 – Jan 1984. This is the LAST completion filed on each wellbore, not the first — a well recompleted in 2019 counts once, in the 2010s.

Completions filed
Dec 1965 – Jan 1984
8 of 8 wells
Plug dates filed
Mar 1994 – Dec 2023
5 of 8 wells; 3 filed none

Last completion to plug: a median of 26.6 years across the 5 wells that filed both dates, with the middle half between 25.6 years and 39.9 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

8 wells

42-495315811074,710 ftJan 1984Mar 1994Yes
42-495310061003,557 ftMar 1979
42-49531018983,570 ftMar 1979Oct 2004Yes
42-49531031993,565 ftMar 1979Feb 2019Yes
42-49531001933,560 ftMar 1979Oct 2005Yes
42-49530917763,680 ftApr 1978
42-49510716723,410 ftJan 1966Dec 2023Yes
42-4951052270Dec 1965

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 202539066.743.32$2,603
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 202454079.932.15$4,316
Jun 20240078.082.63$0
May 20240078.812.20$0
Apr 202435084.451.66$2,956
Mar 202490080.301.55$7,227
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 202344070.622.23$3,107
Apr 202352078.122.24$4,062
Mar 202351072.852.39$3,715
Feb 20230075.112.47$0
Jan 20230076.533.39$0
Dec 20220076.415.73$0
Nov 20220085.005.65$0
Oct 202256087.185.86$4,882
Sep 20220084.888.16$0
Aug 20220094.529.13$0
Jul 2022640101.587.54$6,501
Jun 202200115.097.98$0
May 202200109.378.43$0
Apr 2022720104.226.84$7,504
Mar 202200108.885.08$0
Feb 20220091.054.86$0
Jan 2022124081.844.54$10,148
Dec 20210071.323.90$0
Nov 20210077.435.24$0
Oct 20210079.795.71$0
Sep 20210069.865.35$0
Aug 2021182066.024.22$12,016
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 2021153050.412.81$7,713
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 2020179014.751.80$2,640
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 2019171053.472.42$9,143
Sep 20190255.052.66$5
Aug 201901753.112.30$39
Jul 201906956.272.46$170
Jun 2019028652.782.49$712
May 201917212458.482.74$10,398
Apr 201905262.632.75$143
Mar 20191757456.803.06$10,167
Feb 2019010150.852.79$282
Jan 201917515846.033.23$8,565
Dec 2018013446.594.19$561
Nov 201817210852.934.24$9,562
Oct 201817213561.443.40$11,026
Sep 2018016659.543.11$516
Aug 2018016059.403.07$491
Jul 201817214565.142.93$11,629
Jun 201817341160.183.08$11,676
May 201818262065.382.90$13,698
Apr 201817324963.842.90$11,767
Mar 201808461.222.79$234
Feb 201808261.782.77$227
Jan 201804462.874.01$176
Dec 2017172057.272.92$9,850
Nov 20170055.423.12$0
Oct 20170049.292.98$0
Sep 20170047.523.09$0
Aug 2017029945.373.00$898
Jul 2017093043.873.09$2,871
Jun 201717990042.493.09$10,384
May 201734793045.373.26$18,778
Apr 2017090047.933.21$2,890
Mar 201716993046.772.98$10,679
Feb 201718184050.452.95$11,612
Jan 201717993049.413.42$12,024
Dec 2016093048.763.72$3,462
Nov 201635689042.492.64$17,480
Oct 2016093046.193.09$2,874
Sep 201618090041.553.10$10,270
Aug 201618193041.442.92$10,220
Jul 201635694141.622.92$17,569
Jun 2016088645.352.69$2,380
May 201617493642.521.99$9,262
Apr 201617696236.561.99$8,350
Mar 20161801,00733.011.79$7,748
Feb 2016034726.472.06$716
Jan 201616865027.352.36$6,132
Dec 201534392232.362.00$12,945
Nov 201516790038.792.17$8,429
Oct 2015099843.552.43$2,422
Sep 201533095642.992.76$16,824
Aug 201501,05540.162.87$3,030
Jul 20151681,01048.152.95$11,064
Jun 20151651,02656.152.88$12,223
May 20153381,02455.212.96$21,687
Apr 201501,03249.822.71$2,793
Mar 20153411,12342.892.93$17,921
Feb 20151651,05944.662.98$10,521
Jan 201501,07143.433.10$3,321
Dec 20143511,19054.693.59$23,470
Nov 20141761,18070.464.25$17,418
Oct 20141781,28378.303.90$18,942
Sep 201401,13986.164.05$4,608
Aug 201401,24889.394.04$5,036
Jul 20141711,14096.564.18$21,277
Jun 201401,34398.164.74$6,362
May 20141871,28194.734.73$23,769
Apr 20141881,39295.944.81$24,731
Mar 20141891,43895.895.06$25,395
Feb 2014051497.406.19$3,183
Jan 20141881,20890.404.86$22,867
Dec 201301,12391.824.35$4,890
Nov 20131821,15788.853.74$20,496
Oct 2013096797.423.78$3,655
Sep 20131841,029104.113.72$22,982
Aug 20131881,129104.253.52$23,576
Jul 20130334102.523.72$1,242
Jun 2013021994.403.93$861
May 201319044694.834.15$19,868
Apr 2013039193.964.28$1,674
Mar 2013042393.623.91$1,655
Feb 201318744091.233.42$18,565
Jan 201318036591.603.42$17,736
Dec 2012052886.773.42$1,806
Nov 201219159786.953.62$18,772
Oct 201218263389.383.40$18,419
Sep 2012073394.672.92$2,139
Aug 2012073192.662.91$2,126
Jul 201217877485.133.02$17,491
Jun 201218872179.822.52$16,822
May 201218581991.612.49$18,986
Apr 20120751101.652.00$1,500
Mar 2012183627105.052.22$20,617
Feb 2012176756101.102.57$19,737
Jan 201218678598.092.73$20,391
Dec 2011064196.873.24$2,077
Nov 201118254495.723.31$19,222
Oct 201118352484.983.65$17,463
Sep 2011051083.623.99$2,033
Aug 20111841,06583.404.15$19,765
Jul 201101,09794.144.52$4,955
Jun 20111751,04992.904.64$21,125
May 20111761,07898.134.40$22,019
Apr 2011177978105.964.33$22,993
Mar 201117998196.364.06$21,229
Feb 2011045085.644.18$1,881
Jan 201117671386.504.59$18,496
Dec 2010094185.734.35$4,091
Nov 201018895380.843.80$18,815
Oct 201017883078.103.51$16,814
Sep 201017987572.633.98$16,483
Aug 2010098973.684.42$4,371
Jul 2010055472.554.74$2,624
Jun 201017682370.364.91$16,425
May 2010083871.124.24$3,549
Apr 201034767781.694.12$31,137
Mar 2010054878.394.39$2,405
Feb 2010066773.585.44$3,630
Jan 2010033774.365.96$2,010
Dec 200935431071.445.48$26,990
Nov 2009052974.593.75$1,985
Oct 2009061872.544.11$2,540
Sep 2009035965.543.06$1,100
Aug 2009082967.423.22$2,668
Jul 200934638061.133.46$22,467
Jun 2009049766.163.90$1,936
May 2009059454.743.93$2,332
Apr 2009072946.773.59$2,615
Mar 2009069642.144.06$2,825
Feb 2009073632.814.63$3,410
Jan 200939071335.865.37$17,815
Dec 2008087137.105.98$5,206
Nov 2008072155.496.86$4,946
Oct 200838655875.246.92$32,905
Sep 20080480101.767.88$3,781
Aug 200801,025114.228.48$8,695
Jul 200801,046131.0811.39$11,913
Jun 20081861,237131.3313.03$40,549
May 200801,269123.1711.57$14,688
Apr 20083551,263110.3110.45$52,365
Mar 200801,268101.909.66$12,254
Feb 20081841,01892.538.77$25,954
Jan 20081711,06590.388.21$24,194
Dec 200717894188.337.30$22,594
Nov 2007093391.677.29$6,803
Oct 20071761,07282.856.92$22,002
Sep 20071731,08875.846.24$19,914
Aug 200718397969.066.39$18,892
Jul 20071741,11270.906.39$19,440
Jun 2007092462.007.55$6,975
May 20071751,06458.747.85$18,628
Apr 200717999359.617.81$18,421
Mar 20071761,10556.927.30$18,087
Feb 200701,02655.108.22$8,430
Jan 20071881,13150.306.73$17,064
Dec 20061821,23456.656.92$18,848
Nov 20061801,16054.207.62$18,592
Oct 20061811,23054.906.01$17,334
Sep 200601,13860.085.04$5,732
Aug 20061831,20268.717.34$21,397
Jul 20061801,28969.376.34$20,662
Jun 200601,29066.286.38$8,235
May 20061671,12366.016.42$18,239
Apr 200601,16064.397.36$8,538
Mar 20063511,23956.707.08$28,677
Feb 200601,04457.597.75$8,092
Jan 20061841,30560.598.93$22,807
Dec 20051721,24954.9413.42$26,206
Nov 20051801,22954.6910.59$22,857
Oct 20051771,33458.3413.80$28,730
Sep 20051671,38761.4512.08$27,016
Aug 20051781,45061.519.80$25,154
Jul 200501,51855.697.84$11,907
Jun 20051791,18452.337.38$18,106
May 20051691,38145.226.65$16,827
Apr 20051751,39749.207.36$18,893
Mar 20051731,37450.377.15$18,545
Feb 20051781,27245.226.31$16,078
Jan 200501,36843.166.32$8,649
Dec 20041871,05139.866.75$14,549
Nov 20041851,16545.286.33$15,752
Oct 20041751,24849.706.52$16,828
Sep 20043571,27043.245.28$22,147
Aug 200401,34242.375.55$7,449
Jul 200401,31038.286.08$7,970
Jun 200401,30236.106.43$8,376
May 20043551,37737.486.49$22,248
Apr 200401,01234.475.86$5,929
Mar 2004022534.365.53$1,244
Feb 20041791,00732.455.51$11,357
Jan 20041041,13632.036.30$10,488
Dec 20031791,07230.266.30$12,172
Nov 2003063128.804.60$2,900
Oct 200317275028.174.76$8,415
Sep 200316779226.314.75$8,155
Aug 200317095429.765.13$9,953
Jul 200317599629.415.17$10,297
Jun 200317293828.565.98$10,524
May 200317788126.595.97$9,968
Apr 2003079926.675.41$4,320
Mar 200315797431.146.10$10,827
Feb 200317081033.487.93$12,112
Jan 2003043130.315.58$2,406
Dec 200217445426.914.85$6,886
Nov 2002034424.664.14$1,423
Oct 200217732726.464.23$6,066
Sep 200218149727.443.64$6,773
Aug 2002055025.963.16$1,740
Jul 200218046324.583.06$5,842
Jun 2002036223.733.34$1,208
May 200217736924.663.58$5,687
Apr 200217440723.653.51$5,545
Mar 200217737722.003.10$5,064
Feb 2002053018.222.38$1,259
Jan 200217738917.172.38$3,963
Dec 200118112816.932.36$3,367
Nov 2001063618.072.41$1,530
Oct 200115582819.782.53$5,160
Sep 2001076624.262.25$1,725
Aug 200117687524.873.05$7,049
Jul 2001096823.933.20$3,095
Jun 200117995224.563.82$8,037
May 2001092825.524.31$3,997
Apr 200117778624.685.34$8,562
Mar 20011832,20524.545.38$16,346
Feb 200102,17327.755.77$12,532
Jan 20011872,08927.478.40$22,682
Dec 20001511,91826.889.12$21,556
Nov 20001821,62032.215.66$15,028
Oct 200001,91931.235.15$9,874
Sep 20001741,66331.875.19$14,171
Aug 200001,07029.644.54$4,859
Jul 200018466128.534.09$7,953
Jun 2000073729.304.40$3,241
May 200018887327.263.68$8,337
Apr 200018291824.513.12$7,321
Mar 2000077228.422.86$2,208
Feb 200016890727.622.73$7,113
Jan 2000086625.272.48$2,148
Dec 199916953124.282.42$5,390
Nov 199917178323.192.43$5,871
Oct 199916866220.982.80$5,381
Sep 199916797121.752.62$6,175
Aug 19991621,29819.262.88$6,853
Jul 19991681,29517.892.37$6,078
Jun 199901,24915.942.36$2,950
May 199901,15115.792.32$2,671
Apr 19991711,14515.102.21$5,110
Mar 19991681,23812.471.84$4,371
Feb 19991691,0549.981.82$3,603
Jan 19991731,13010.381.90$3,943
Dec 19981681,2339.201.77$3,732
Nov 19981701,21810.892.19$4,514
Oct 199834095512.421.97$6,103
Sep 199801,08712.592.08$2,264
Aug 1998074511.301.91$1,421
Jul 199834586611.742.24$5,988
Jun 199801,04711.242.24$2,342
May 19984171,19812.622.21$7,906
Apr 1998094313.042.51$2,363
Mar 1998089012.802.31$2,055
Feb 19984521,02613.952.30$8,664
Jan 199801,11214.702.15$2,396
Dec 1997083116.322.41$2,004
Nov 199747784618.193.09$11,289
Oct 199701,16519.253.15$3,670
Sep 199701,10317.742.95$3,259
Aug 199701,15717.862.55$2,956
Jul 19974651,32417.582.25$11,150
Jun 1997065117.242.26$1,469
May 19974721,32118.972.31$12,003
Apr 199701,10317.882.08$2,297
Mar 199701,39318.951.94$2,701
Feb 19974591,50720.492.21$12,729
Jan 199703,88223.483.54$13,741
Dec 199601,86823.32$0
Nov 19964731,98221.97$10,392
Oct 199601,44923.31$0
Sep 199601,17722.22$0
Aug 19964591,20420.26$9,299
Jul 199601,26319.55$0
Jun 19964471,29918.73$8,372
May 199601,29519.43$0
Apr 199601,26221.51$0
Mar 19964691,35819.38$9,089
Feb 199601,31316.98$0
Jan 19964741,42817.07$8,091
Dec 1995079217.19$0
Nov 19954751,38316.00$7,600
Oct 199501,28715.43$0
Sep 199501,28616.18$0
Aug 19954461,30915.92$7,100
Jul 199501,20215.24$0
Jun 19954471,27116.41$7,335
May 199501,30917.56$0
Apr 199501,05717.73$0
Mar 19954041,17816.44$6,642
Feb 199501,08416.58$0
Jan 19954531,18115.92$7,212
Dec 199401,10115.03$0
Nov 19944191,13815.90$6,662
Oct 199401,13215.58$0
Sep 19944551,32815.29$6,957
Aug 199401,40716.13$0
Jul 1994094117.56$0
Jun 19944221,18617.09$7,212
May 199401,20115.88$0
Apr 19944391,24314.14$6,207
Mar 199401,35712.46$0
Feb 19943651,12012.50$4,563
Jan 199401,13912.66$0
Dec 19933981,27312.33$4,907
Nov 199301,16814.49$0
Oct 199301,28515.85$0
Sep 19934091,59415.03$6,147
Aug 199301,80515.66$0
Jul 19933681,91515.46$5,689
Jun 199302,18716.79$0
May 19933692,37217.68$6,524
Apr 199302,40418.05$0
Mar 19933682,29518.14$6,676
Feb 199301,98217.90$0
Jan 19933982,02716.93$6,738

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.

Jul 2025 — as filed, then multipliedworked
Oil                   39 bbl  × $ 66.74 =     $2,603
Casinghead gas         0 Mcf  × $  3.32 =         $0

────────────────────────────────────────────────────
Month total                                   $2,603

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/19871 is the state's own key, not one this site invented.