UNIVERSITY -154-

Operated by HIGHMARK ENERGY OPERATING, LLC (P-5 385847) in the SHAFTER LAKE (DEVONIAN) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 5506District 08Field 82570200Hydrogen sulphide fieldNGPA filingOilCasinghead gasSaveExport
Value, all time
$24.6 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 12 leases and 67 wells, and the rule below applies to all of them.

Discovered
1947-12-31
as the register files it
Field class
Oil
the register's own label
Between wells
no field rule filed
From a lease line
no field rule filed

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
NGPA1none

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
OilDisposition634,792 bbl$23,086,086
Casinghead gasProduction601,910 Mcf$1,466,947
Total$24,553,032

264,009 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 (10)

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 32.3921, -102.7209. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.8 miles.

32.39158, -102.72171 · 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
70.0%
7 of 10 wells
With a plug date
40.0%
4 of 10 wells
Median depth
9,894 ft
10 wells filed one
Completion to plug
34.3 years
median over 3 wells

What the state filed about each well

On the RRC proration schedule
770.0%
A plug date is filed
440.0%
BothOn the schedule and plugged. Neither fact cancels the other.
440.0%
NeitherNo plug date, and not on the schedule.
330.0%

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

Total depth in feet, 10 of 10 wells. Median 9,894 ft, with the middle half between 9,844 and 9,904 ft; the shallowest is 9,788 ft and the deepest 11,805 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, 9 of 10 wells, Jul 1973 – Jun 2004. This is the LAST completion filed on each wellbore, not the first — a well recompleted in 2019 counts once, in the 2010s.

Completions filed
Jul 1973 – Jun 2004
9 of 10 wells; 1 filed none
Plug dates filed
Oct 1978 – Jun 2026
4 of 10 wells; 6 filed none

Last completion to plug: a median of 34.3 years across the 3 wells that filed both dates, with the middle half between 20.6 years and 36.8 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

10 wells

42-003053706 L9,862 ftOct 1978Yes
42-00305374109,905 ftJun 2004
42-0030536959,888 ftJan 1996Yes
42-00335972199,900 ftAug 1988
42-00336105209,900 ftMay 1988Sep 2022Yes
42-003053981 L9,838 ftMar 1987Jun 2026Yes
42-003053717 L9,838 ftApr 1978Yes
42-00305372811,805 ftJul 1974Yes
42-003053751110,148 ftJul 1974
42-003053684 L9,788 ftJul 1973Apr 1980Yes

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 202137069.493.38$2,571
May 2021855063.483.02$5,547
Apr 20211147360.362.76$7,082
Mar 20211515361.302.72$9,400
Feb 2021274457.805.55$1,805
Jan 202113010450.412.81$6,846
Dec 20201399244.642.68$6,451
Nov 202015512238.772.71$6,340
Oct 20209212636.972.48$3,714
Sep 20201269537.091.99$4,862
Aug 2020113739.982.39$4,534
Jul 20201656638.371.83$6,452
Jun 20201019734.901.69$3,689
May 20201719516.921.81$3,066
Apr 20201448314.751.80$2,274
Mar 20201363030.341.86$4,182
Feb 2020161249.881.98$8,035
Jan 20201623457.252.09$9,346
Dec 20192118459.012.30$12,645
Nov 20192388655.302.75$13,398
Oct 20191859353.472.42$10,117
Sep 20191846555.052.66$10,302
Aug 20192021353.112.30$10,758
Jul 2019175056.272.46$9,847
Jun 2019218352.782.49$11,514
May 2019345058.482.74$20,176
Apr 2019319262.632.75$19,984
Mar 2019221056.803.06$12,553
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 201853059.403.07$3,148
Jul 20184601765.142.93$30,014
Jun 20183942360.183.08$23,782
May 201831611965.382.90$21,005
Apr 20183109663.842.90$20,069
Mar 201836317461.222.79$22,708
Feb 201840521561.782.77$25,616
Jan 201857024262.874.01$36,806
Dec 201759531157.272.92$34,984
Nov 201744828555.423.12$25,717
Oct 201733135149.292.98$17,362
Sep 201738924847.523.09$19,251
Aug 201744523445.373.00$20,893
Jul 201729120843.873.09$13,408
Jun 201732022542.493.09$14,291
May 201746523345.373.26$21,857
Apr 201743425347.933.21$21,614
Mar 201780138946.772.98$38,623
Feb 20171,01023450.452.95$51,645
Jan 20171,18937249.413.42$60,020
Dec 20161,10422648.763.72$54,672
Nov 20161,31717742.492.64$56,427
Oct 20161,30248746.193.09$61,644
Sep 20161,27451041.553.10$54,516
Aug 20161,23328141.442.92$51,917
Jul 20161,24245541.622.92$53,023
Jun 20161,03153045.352.69$48,179
May 20161,93549342.521.99$83,258
Apr 20161,48442236.561.99$55,095
Mar 20161,60230033.011.79$53,420
Feb 20162,00832226.472.06$53,816
Jan 20161,72468227.352.36$48,764
Dec 20151,45372832.362.00$48,476
Nov 20151,98357138.792.17$78,158
Oct 20151,30517943.552.43$57,267
Sep 20151,47838842.992.76$64,609
Aug 20151,44151040.162.87$59,336
Jul 20151,25041748.152.95$61,416
Jun 201578629256.152.88$44,976
May 20157758455.212.96$43,036
Apr 20156644749.822.71$33,208
Mar 201578936742.892.93$34,917
Feb 20157585044.662.98$34,001
Jan 20158913243.433.10$38,795
Dec 20141,479954.693.59$80,919
Nov 20141,22814370.464.25$87,133
Oct 20141,2779678.303.90$100,364
Sep 20145614786.164.05$48,526
Aug 201485612189.394.04$77,006
Jul 20141,10515496.564.18$107,342
Jun 2014781698.164.74$76,691
May 20147622394.734.73$72,293
Apr 2014791595.944.81$75,913
Mar 20148021095.895.06$76,954
Feb 20142814497.406.19$27,642
Jan 20145859190.404.86$53,326
Dec 20136116691.824.35$56,389
Nov 201376410888.853.74$68,285
Oct 201375910297.423.78$74,327
Sep 2013761105104.113.72$79,618
Aug 20137960104.253.52$82,983
Jul 2013744259102.523.72$77,238
Jun 201353921694.403.93$51,731
May 2013886094.834.15$84,019
Apr 20138088193.964.28$76,267
Mar 201385724893.623.91$81,203
Feb 201373737091.233.42$68,502
Jan 20131,00452191.603.42$93,748
Dec 201269354286.773.42$61,985
Nov 201275249186.953.62$67,166
Oct 201296646989.383.40$87,936
Sep 20121,02666894.672.92$99,081
Aug 201299562792.662.91$94,020
Jul 20121,09476985.133.02$95,455
Jun 20121,06561279.822.52$86,550
May 20121,20160791.612.49$111,534
Apr 20121,243901101.652.00$128,150
Mar 20121,266791105.052.22$134,751
Feb 2012941320101.102.57$95,958
Jan 20121,14153198.092.73$113,372
Dec 20111,27961496.873.24$125,886
Nov 20111,36048895.723.31$131,795
Oct 20111,39377884.983.65$121,216
Sep 20111,54453883.623.99$131,254
Aug 20111,34731183.404.15$113,630
Jul 20111,30980794.144.52$126,875
Jun 20111,5441,00092.904.64$148,077
May 20111,37674298.134.40$138,295
Apr 20111,101759105.964.33$119,951
Mar 20111,35579596.364.06$133,793
Feb 20111,16191785.644.18$103,261
Jan 20111,3641,04286.504.59$122,768
Dec 20101,23386785.734.35$109,475
Nov 20101,6401,06680.843.80$136,623
Oct 20101,6251,14578.103.51$130,930
Sep 20101,8171,15972.633.98$136,581
Aug 20101,5731,27873.684.42$121,547
Jul 20102,2501,36372.554.74$169,693
Jun 20102,6091,25270.364.91$189,717
May 20101,5151,11971.124.24$112,486
Apr 20101,3361,08081.694.12$113,590
Mar 20101,38687578.394.39$112,489
Feb 20101,74589973.585.44$133,290
Jan 20101,68576874.365.96$129,877
Dec 20091,80489771.445.48$133,797
Nov 20091,5131,04174.593.75$116,760
Oct 20091,46444172.544.11$108,011
Sep 20091,4941,06665.543.06$101,184
Aug 20091,5001,20467.423.22$105,005
Jul 20091,9341,10461.133.46$122,050
Jun 20091,7301,22366.163.90$119,220
May 20091,8621,11454.743.93$106,299
Apr 20091,7271,04446.773.59$84,517
Mar 20091,9471,10242.144.06$86,520
Feb 20091,7931,10732.814.63$63,957
Jan 20092,3841,19135.865.37$91,887
Dec 20081,8101,24937.105.98$74,616
Nov 20081,9771,36655.496.86$119,075
Oct 20081,8601,14575.246.92$147,872
Sep 20081,6951,322101.767.88$182,897
Aug 20081,6461,177114.228.48$197,991
Jul 20081,7931,346131.0811.39$250,357
Jun 20081,6491,210131.3313.03$232,333
May 20081,8121,477123.1711.57$240,279
Apr 20082,0421,387110.3110.45$239,754
Mar 20082,0191,329101.909.66$218,580
Feb 20081,6211,14392.538.77$160,016
Jan 20082,0711,12290.388.21$196,384
Dec 20071,7751,06688.337.30$164,570
Nov 20071,7171,00691.677.29$164,733
Oct 20072,0301,39182.856.92$177,814
Sep 20071,7241,25875.846.24$138,603
Aug 20071,7781,11669.066.39$129,918
Jul 20071,4781,10970.906.39$111,874
Jun 20071,43498462.007.55$96,336
May 20071,79771958.747.85$111,197
Apr 20071,55377859.617.81$98,647
Mar 20071,31584456.927.30$81,013
Feb 20071,60184955.108.22$95,190
Jan 20071,74098550.306.73$94,148
Dec 20061,8541,14556.656.92$112,951
Nov 20061,5991,10754.207.62$95,098
Oct 20061,9061,19454.906.01$111,820
Sep 20061,7091,14660.085.04$108,449
Aug 20061,8331,35368.717.34$135,876
Jul 20061,7831,37769.376.34$132,421
Jun 20061,6861,30066.286.38$120,047
May 20061,7441,42566.016.42$124,277
Apr 20062,0431,37464.397.36$141,662
Mar 20062,0631,35456.707.08$126,562
Feb 20061,8121,15357.597.75$113,290
Jan 20061,5411,19460.598.93$104,036
Dec 20051,5721,11954.9413.42$101,378
Nov 20051,6791,16854.6910.59$104,192
Oct 20051,6881,34558.3413.80$117,033
Sep 20051,1641,03361.4512.08$84,005
Aug 20051,1921,18961.519.80$84,968
Jul 20051,6861,42055.697.84$105,031
Jun 20051,40199352.337.38$80,644
May 20051,3941,39345.226.65$72,302
Apr 20051,4781,05249.207.36$80,461
Mar 20051,5581,13750.377.15$86,612
Feb 20051,21097545.226.31$60,870
Jan 20051,3881,16543.166.32$67,271
Dec 20041,64799439.866.75$72,360
Nov 20041,9631,37845.286.33$97,608
Oct 20041,9251,38149.706.52$104,670
Sep 20041,8761,25243.245.28$87,734
Aug 20041,9791,40942.375.55$91,671
Jul 20041,4711,47038.286.08$65,254
Jun 20049941,55936.106.43$45,912
May 20048981,22237.486.49$41,593
Apr 20041,2421,17834.475.86$49,713
Mar 20041,6241,28734.365.53$62,918
Feb 20041,2931,05032.455.51$47,743
Jan 20041,2601,21432.036.30$48,006
Dec 20031,3551,49230.266.30$50,404
Nov 20031,3981,34628.804.60$46,447
Oct 20032,3101,50628.174.76$72,241
Sep 20031,8091,55326.314.75$54,971
Aug 20031,6091,78829.765.13$57,056
Jul 20031,8531,72429.415.17$63,411
Jun 20031,7481,92828.565.98$61,458
May 20031,8711,93926.595.97$61,331
Apr 20031,6371,82826.675.41$53,543
Mar 20031,7081,67231.146.10$63,380
Feb 20032,1711,48333.487.93$84,439
Jan 20031,9641,41230.315.58$67,411
Dec 20021,9321,22126.914.85$57,917
Nov 20022,3271,32524.664.14$62,865
Oct 20021,4691,36126.464.23$44,626
Sep 20021,2361,19027.443.64$38,242
Aug 20021,7591,14725.963.16$49,293
Jul 20021,0981,15524.583.06$30,525
Jun 200291189523.733.34$24,606
May 200290884924.663.58$25,434
Apr 20021,17198523.653.51$31,154
Mar 20021,2941,03722.003.10$31,686
Feb 20021,00446818.222.38$19,405
Jan 20021,46775417.172.38$26,980
Dec 200199385716.932.36$18,838
Nov 20011,8821,33918.072.41$37,229
Oct 20012,3322,08119.782.53$51,390
Sep 20011,8441,91824.262.25$49,053
Aug 20012,1962,31224.873.05$61,673
Jul 20011,8002,70223.933.20$51,713
Jun 20012,2793,26824.563.82$68,470
May 20012,3753,16925.524.31$74,260
Apr 20012,5163,02824.685.34$78,250
Mar 20011,7872,97224.545.38$59,832
Feb 20012,4932,77527.755.77$85,184
Jan 20012,5702,75327.478.40$93,720
Dec 20002,5213,01926.889.12$95,305
Nov 20002,7372,64732.215.66$103,136
Oct 20002,4002,93131.235.15$90,033
Sep 20002,3033,05231.875.19$89,226
Aug 20003,1553,85829.644.54$111,032
Jul 20003,6094,11728.534.09$119,802
Jun 20001,7562,23229.304.40$61,265
May 20001,6262,34427.263.68$52,950
Apr 20001,6511,97024.513.12$46,605
Mar 20001,4582,36928.422.86$48,211
Feb 20001,5322,19227.622.73$48,290
Jan 20001,3692,17325.272.48$39,985
Dec 19991,8512,41524.282.42$50,796
Nov 19991,8842,52323.192.43$49,831
Oct 19991,6912,33820.982.80$42,032
Sep 19991,7022,63021.752.62$43,906
Aug 19991,8502,87119.262.88$43,887
Jul 19991,8052,84317.892.37$39,036
Jun 19991,7132,68415.942.36$33,645
May 19991,8562,69615.792.32$35,564
Apr 19991,9952,82515.102.21$36,362
Mar 19992,2422,75112.471.84$33,015
Feb 19992,4402,2539.981.82$28,447
Jan 19992,2653,25110.381.90$29,687
Dec 19982,5823,1749.201.77$29,383
Nov 19981,9582,18310.892.19$26,094
Oct 19982,1253,09712.421.97$32,491
Sep 19982,2443,02112.592.08$34,544
Aug 19982,5003,04711.301.91$34,062
Jul 19982,7883,51111.742.24$40,586
Jun 19982,7893,22311.242.24$38,559
May 19982,6313,15912.622.21$40,173
Apr 19982,2482,70213.042.51$36,083
Mar 19982,5333,49612.802.31$40,496
Feb 19982,5173,04513.952.30$42,113
Jan 19983,1083,31914.702.15$52,839
Dec 19972,8733,13916.322.41$54,456
Nov 19972,8433,47218.193.09$62,437
Oct 19972,9323,97919.253.15$68,974
Sep 19972,6793,97717.742.95$59,277
Aug 19973,0554,53317.862.55$66,143
Jul 19973,1213,71817.582.25$63,221
Jun 19973,4003,74617.242.26$67,071
May 19973,0323,75618.972.31$66,188
Apr 19973,2013,61017.882.08$64,753
Mar 19973,3523,68918.951.94$70,674
Feb 19973,0172,73620.492.21$67,854
Jan 19973,6833,82323.483.54$100,009
Dec 19963,7214,04423.32$86,774
Nov 19963,2163,84221.97$70,656
Oct 19963,3214,21123.31$77,413
Sep 19963,5864,24122.22$79,681
Aug 19963,3634,70420.26$68,134
Jul 19963,5854,78619.55$70,087
Jun 19963,5714,68418.73$66,885
May 19963,7804,93919.43$73,445
Apr 19963,8484,51821.51$82,770
Mar 19964,1124,01319.38$79,691
Feb 19964,0924,08116.98$69,482
Jan 19964,0435,07417.07$69,014
Dec 19953,7864,20817.19$65,081
Nov 19953,6094,11516.00$57,744
Oct 19953,8044,37015.43$58,696
Sep 19953,5104,44316.18$56,792
Aug 19953,7765,21815.92$60,114
Jul 19953,6824,88015.24$56,114
Jun 19954,3204,84116.41$70,891
May 19953,5954,47117.56$63,128
Apr 19953,9455,16317.73$69,945
Mar 19954,5895,38416.44$75,443
Feb 19954,1444,76016.58$68,708
Jan 19955,1095,30115.92$81,335
Dec 19944,6265,88515.03$69,529
Nov 19944,5155,70215.90$71,789
Oct 19944,7206,19815.58$73,538
Sep 19944,5476,30315.29$69,524
Aug 19944,8106,69716.13$77,585
Jul 19944,5896,20417.56$80,583
Jun 19944,6126,34917.09$78,819
May 19944,7116,76915.88$74,811
Apr 19945,3236,76314.14$75,267
Mar 19945,7097,06512.46$71,134
Feb 19945,2826,13712.50$66,025
Jan 19946,4717,49212.66$81,923
Dec 19936,4547,93712.33$79,578
Nov 19936,8277,82614.49$98,923
Oct 19936,8657,45615.85$108,810
Sep 19936,7508,25015.03$101,453
Aug 19936,9598,55115.66$108,978
Jul 19936,2907,33515.46$97,243
Jun 19935,3555,47716.79$89,910
May 19934,4794,76417.68$79,189
Apr 19934,7484,79418.05$85,701
Mar 19934,6964,87818.14$85,185
Feb 19934,6344,30017.90$82,949
Jan 19935,1424,58616.93$87,054

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.

Jun 2021 — as filed, then multipliedworked
Oil                   37 bbl  × $ 69.49 =     $2,571
Casinghead gas         0 Mcf  × $  3.38 =         $0

────────────────────────────────────────────────────
Month total                                   $2,571

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/5506 is the state's own key, not one this site invented.