LEEPER UNIT

Operated by BURK ROYALTY CO., LTD. (P-5 108799) in the LEEPER (GLORIETA) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 66345District 8AField 52916500Hydrogen sulphide fieldOilCasinghead gasSaveExport
Value, all time
$29.6 M
Jan 1993 – May 2026
Value, last 12 filed months
$175 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 54 leases and 438 wells, and the rule below applies to all of them.

Discovered
1958-04-08
as the register files it
Field class
Oil
the register's own label
Between wells
0 ft
minimum
From a lease line
440 ft
minimum

A drilling unit in this field needs at least 20 acres. The field rule took effect on 2019-08-20.

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.

The Commission's schedule remark for this field reads: WELL SPACING TO ZERO; PRORATION ACRES PLATS REQUIRED

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
OilDisposition1,011,901 bbl$29,116,947
Casinghead gasProduction212,552 Mcf$486,283
Total$29,603,230

91,536 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 (31)

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 33.3777, -102.4047. A lease has no coordinate of its own — that point is the mean of its wells, and they span 2.0 miles.

33.37686, -102.40266 · 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
48.4%
15 of 31 wells
With a plug date
45.2%
14 of 31 wells
Median depth
5,979 ft
24 wells filed one
Completion to plug
23.8 years
median over 8 wells

What the state filed about each well

On the RRC proration schedule
1548.4%
A plug date is filed
1445.2%
BothOn the schedule and plugged. Neither fact cancels the other.
1445.2%
NeitherNo plug date, and not on the schedule.
1651.6%

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, 24 of 31 wells. Median 5,979 ft, with the middle half between 5,969 and 6,003 ft; the shallowest is 5,930 ft and the deepest 6,045 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, 18 of 31 wells, Feb 1960 – Sep 2014. This is the LAST completion filed on each wellbore, not the first — a well recompleted in 2019 counts once, in the 2010s.

Completions filed
Feb 1960 – Sep 2014
18 of 31 wells; 13 filed none
Plug dates filed
May 1991 – Nov 2021
14 of 31 wells; 17 filed none

Last completion to plug: a median of 23.8 years across the 8 wells that filed both dates, with the middle half between 19.6 years and 31.4 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

31 wells

42-4450046885,970 ftJul 2006Yes
42-44500469326,045 ftOct 2004Yes
42-44500476316,007 ftMar 1997Yes
42-44500481255,952 ftOct 2021Yes
42-44500484336,024 ftOct 1991Yes
42-44500486305,970 ftOct 2021Yes
42-445004721
42-4450047824
42-4450047926
42-4450048028
42-4450048217
42-4450048315
42-4450048516
42-44531561105,930 ftSep 2014Yes
42-4450011495,961 ftMar 2014Oct 2021Yes
42-4453154535,965 ftFeb 2014
42-4453160441W6,015 ftSep 1990
42-4453160540W6,002 ftSep 1990
42-4453161134W6,002 ftAug 1990Jul 2006Yes
42-4453160936W6,010 ftAug 1990May 2011Yes
42-445315554W5,958 ftFeb 1990
42-4453156012W5,964 ftFeb 1990
42-4453156211W5,976 ftFeb 1990
42-4453155719W5,975 ftJan 1990Oct 2021Yes
42-4453156429W5,990 ftJan 1990
42-4453155620W5,981 ftJan 1990Nov 2021Yes
42-4453156321W5,981 ftDec 1989
42-4453155913W5,976 ftDec 1989Jun 2011Yes
42-44531558185,992 ftDec 1989
42-4453058725,971 ftNov 1977Nov 2003Yes
42-4450047727W6,012 ftFeb 1960May 1991Yes

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 202616294106.413.05$17,525
Apr 20261628798.932.87$16,276
Mar 20261608089.753.15$14,612
Feb 202616311063.503.75$10,763
Jan 20261638059.138.00$10,278
Dec 202516310956.664.41$9,717
Nov 20251637558.593.93$9,845
Oct 202516311159.383.30$10,046
Sep 202531910162.743.08$20,325
Aug 20251579963.933.01$10,335
Jul 202516312566.743.32$11,293
Jun 202550710966.483.13$34,046
May 2025015660.553.23$504
Apr 202535215862.363.54$22,511
Mar 202535914667.704.27$24,927
Feb 202533913270.884.34$24,601
Jan 202534016674.324.28$25,979
Dec 202433016968.993.12$23,294
Nov 202434316469.052.20$24,045
Oct 202450019571.372.28$36,130
Sep 202433818969.612.36$23,975
Aug 202433419075.632.06$25,653
Jul 20241702379.932.15$13,637
Jun 202450918078.082.63$40,217
May 202451420078.812.20$40,948
Apr 202434020184.451.66$29,047
Mar 202449221580.301.55$39,840
Feb 202454119976.091.78$41,520
Jan 202456021873.023.30$41,610
Dec 202338320371.262.61$27,823
Nov 202319217677.892.81$15,449
Oct 202337913285.443.09$32,789
Sep 202337119989.042.74$33,578
Aug 202338025180.522.67$31,268
Jul 202336620274.852.64$27,929
Jun 202335720568.962.26$25,082
May 202333021170.622.23$23,775
Apr 202355621678.122.24$43,918
Mar 202318613172.852.39$13,864
Feb 202374312975.112.47$56,125
Jan 202318513176.533.39$14,602
Dec 202255111476.415.73$42,755
Nov 202236215385.005.65$31,634
Oct 2022365087.185.86$31,821
Sep 2022377484.888.16$32,032
Aug 2022704594.529.13$66,588
Jul 20223675101.587.54$37,318
Jun 20226755115.097.98$77,726
May 20225065109.378.43$55,383
Apr 20225124104.226.84$53,388
Mar 20221,0164108.885.08$110,642
Feb 2022348391.054.86$31,700
Jan 2022726481.844.54$59,434
Dec 2021357471.323.90$25,477
Nov 2021380477.435.24$29,444
Oct 2021701679.795.71$55,967
Sep 2021703669.865.35$49,144
Aug 2021681566.024.22$44,981
Jul 2021340470.783.98$24,081
Jun 2021689569.493.38$47,896
May 2021514463.483.02$32,641
Apr 2021695460.362.76$41,961
Mar 2021524361.302.72$32,129
Feb 2021338357.805.55$19,553
Jan 2021349450.412.81$17,604
Dec 2020716344.642.68$31,970
Nov 2020680338.772.71$26,372
Oct 2020349436.972.48$12,912
Sep 2020704337.091.99$26,117
Aug 2020705539.982.39$28,198
Jul 20203509738.371.83$13,607
Jun 20201749234.901.69$6,228
May 20200316.921.81$5
Apr 20206691514.751.80$9,895
Mar 202033426530.341.86$10,625
Feb 202092023649.881.98$46,357
Jan 2020864057.252.09$49,464
Dec 201963211559.012.30$37,559
Nov 2019806055.302.75$44,572
Oct 2019757053.472.42$40,477
Sep 201970512355.052.66$39,137
Aug 20196376153.112.30$33,972
Jul 20194697756.272.46$26,580
Jun 20195707252.782.49$30,264
May 201970011458.482.74$41,248
Apr 201959211162.632.75$37,382
Mar 201976217456.803.06$43,814
Feb 2019611050.852.79$31,069
Jan 201963610146.033.23$29,601
Dec 201883013546.594.19$39,235
Nov 201878513352.934.24$42,114
Oct 201880619261.443.40$50,173
Sep 201876115759.543.11$45,798
Aug 201871619459.403.07$43,125
Jul 201867819065.142.93$44,722
Jun 201879222360.183.08$48,349
May 201868619665.382.90$45,419
Apr 201866920263.842.90$43,295
Mar 201871524261.222.79$44,447
Feb 201874727861.782.77$46,919
Jan 201850515762.874.01$32,379
Dec 201777816757.272.92$45,044
Nov 20177493155.423.12$41,606
Oct 2017715249.292.98$35,248
Sep 20176905647.523.09$32,962
Aug 201790019945.373.00$41,431
Jul 201775328743.873.09$33,920
Jun 201782616942.493.09$35,618
May 201771411845.373.26$32,779
Apr 201770215447.933.21$34,141
Mar 201786120946.772.98$40,893
Feb 201756815450.452.95$29,110
Jan 201750812049.413.42$25,511
Dec 201683219348.763.72$41,287
Nov 201687922342.492.64$37,938
Oct 201681719046.193.09$38,324
Sep 201660117241.553.10$25,505
Aug 201681418341.442.92$34,267
Jul 201688916741.622.92$37,489
Jun 201679421745.352.69$36,591
May 201691120942.521.99$39,152
Apr 201698414236.561.99$36,258
Mar 201680816233.011.79$26,963
Feb 201679915926.472.06$21,478
Jan 20161,00222727.352.36$27,941
Dec 201580617932.362.00$26,440
Nov 201583924038.792.17$33,065
Oct 20151,06728243.552.43$47,152
Sep 201591821842.992.76$40,066
Aug 201575627540.162.87$31,151
Jul 20151,12529648.152.95$55,040
Jun 201594631056.152.88$54,012
May 20151,01934755.212.96$57,285
Apr 20151,06529949.822.71$53,868
Mar 20151,12723642.892.93$49,030
Feb 20151,15416644.662.98$52,032
Jan 20151,03019943.433.10$45,350
Dec 20141,30921754.693.59$72,369
Nov 20141,03320370.464.25$73,648
Oct 20141,44029278.303.90$113,891
Sep 201479021786.164.05$68,944
Aug 201479122589.394.04$71,615
Jul 20141,09728196.564.18$107,101
Jun 201486523398.164.74$86,012
May 20141,04313594.734.73$99,441
Apr 201474211895.944.81$71,755
Mar 201499817395.895.06$96,573
Feb 20141,03917597.406.19$102,282
Jan 20141,13020790.404.86$103,158
Dec 201394214491.824.35$87,121
Nov 201368716888.853.74$61,668
Oct 20137444997.423.78$72,666
Sep 2013704200104.113.72$74,037
Aug 201387730104.253.52$91,533
Jul 201368730102.523.72$70,543
Jun 20136603094.403.93$62,422
May 20135973094.834.15$56,738
Apr 20136783093.964.28$63,833
Mar 20137943093.623.91$74,452
Feb 20138353091.233.42$76,280
Jan 20136733091.603.42$61,749
Dec 20128503086.773.42$73,857
Nov 20128183086.953.62$71,234
Oct 20128383089.383.40$75,002
Sep 20126933094.672.92$65,694
Aug 20128983092.662.91$83,296
Jul 20128843085.133.02$75,346
Jun 20128453079.822.52$67,523
May 20127263091.612.49$66,584
Apr 201283630101.652.00$85,039
Mar 20121,16930105.052.22$122,870
Feb 201271230101.102.57$72,060
Jan 20127543098.092.73$74,042
Dec 20117773096.873.24$75,365
Nov 20119103095.723.31$87,205
Oct 20119703084.983.65$82,540
Sep 20118813083.623.99$73,789
Aug 20119363083.404.15$78,187
Jul 20117633094.144.52$71,964
Jun 20118003092.904.64$74,459
May 201168020198.134.40$67,614
Apr 201181030105.964.33$85,958
Mar 20118433096.364.06$81,353
Feb 20116923085.644.18$59,388
Jan 20117893086.504.59$68,386
Dec 20101,1163085.734.35$95,805
Nov 20108853080.843.80$71,657
Oct 20101,2053078.103.51$94,216
Sep 201095511672.633.98$69,823
Aug 20109203173.684.42$67,923
Jul 20101,04826872.554.74$77,302
Jun 20101,07313870.364.91$76,174
May 201093831271.124.24$68,032
Apr 20101,12114881.694.12$92,185
Mar 201088771178.394.39$72,652
Feb 20101,07150773.585.44$81,563
Jan 201098820974.365.96$74,714
Dec 200999327171.445.48$72,426
Nov 200996245174.593.75$73,448
Oct 20091,0539772.544.11$76,783
Sep 200993816165.543.06$61,970
Aug 20091,08730567.423.22$74,267
Jul 20098969361.133.46$55,095
Jun 200987360166.163.90$60,099
May 20096314454.743.93$34,714
Apr 20091,02731446.773.59$49,159
Mar 20091,02830742.144.06$44,566
Feb 200994631132.814.63$32,479
Jan 20091,16735135.865.37$43,734
Dec 20081,0913737.105.98$40,697
Nov 20081,12123355.496.86$63,803
Oct 20081,02426675.246.92$78,887
Sep 20081,170271101.767.88$121,194
Aug 20081,208224114.228.48$139,878
Jul 20081,22930131.0811.39$161,439
Jun 20081,126310131.3313.03$151,918
May 20081,064431123.1711.57$136,041
Apr 20081,283315110.3110.45$144,821
Mar 20081,170297101.909.66$122,093
Feb 20081,18623692.538.77$111,810
Jan 20081,33226290.388.21$122,536
Dec 20071,35333688.337.30$121,964
Nov 20071,16245991.677.29$109,867
Oct 20071,4208382.856.92$118,222
Sep 20071,15773675.846.24$92,343
Aug 20071,32433769.066.39$93,588
Jul 20071,30248470.906.39$95,404
Jun 20071,22939662.007.55$79,187
May 20071,35240158.747.85$82,563
Apr 20071,26128259.617.81$77,369
Mar 20071,30633356.927.30$76,769
Feb 20071,24224755.108.22$70,464
Jan 20071,29526750.306.73$66,935
Dec 20061,37933556.656.92$80,438
Nov 20061,39431954.207.62$77,985
Oct 20061,42233554.906.01$80,082
Sep 20061,35736160.085.04$83,347
Aug 20061,18338568.717.34$84,110
Jul 20061,40345269.376.34$100,193
Jun 20061,24542966.286.38$85,257
May 20061,47149766.016.42$100,294
Apr 20061,42843664.397.36$95,158
Mar 20061,45041956.707.08$85,183
Feb 20061,26833357.597.75$75,605
Jan 20061,60438660.598.93$100,635
Dec 20051,45727954.9413.42$83,790
Nov 20051,25536554.6910.59$72,501
Oct 20051,26339558.3413.80$79,133
Sep 20051,20844261.4512.08$79,571
Aug 20051,51154761.519.80$98,300
Jul 20051,26544855.697.84$73,962
Jun 20051,10033052.337.38$59,999
May 20051,05127445.226.65$49,349
Apr 20051,05119449.207.36$53,137
Mar 20051,31731450.377.15$68,584
Feb 20051,42736945.226.31$66,858
Jan 20051,52138643.166.32$68,087
Dec 20041,36735739.866.75$56,899
Nov 20041,39941345.286.33$65,961
Oct 20041,33153649.706.52$69,643
Sep 20041,50053643.245.28$67,692
Aug 20041,58062042.375.55$70,386
Jul 20041,61958838.286.08$65,553
Jun 20041,58047936.106.43$60,119
May 20041,40148137.486.49$55,633
Apr 20041,62450634.475.86$58,944
Mar 20041,76844934.365.53$63,232
Feb 20041,45030332.455.51$48,722
Jan 20041,58031632.036.30$52,598
Dec 20031,77442130.266.30$56,334
Nov 20031,63848128.804.60$49,385
Oct 20031,65957528.174.76$49,471
Sep 20031,74656726.314.75$48,630
Aug 20032,07471129.765.13$65,369
Jul 20032,37371929.415.17$73,508
Jun 20032,19379028.565.98$67,359
May 20032,47073126.595.97$70,043
Apr 20032,18766626.675.41$61,929
Mar 20032,52463631.146.10$82,474
Feb 20032,28756233.487.93$81,023
Jan 20032,45154430.315.58$77,326
Dec 20022,49063326.914.85$70,078
Nov 20022,52855624.664.14$64,641
Oct 20022,69265526.464.23$74,000
Sep 20022,56170027.443.64$72,818
Aug 20022,56279225.963.16$69,016
Jul 20022,63484424.583.06$67,328
Jun 20022,55577123.733.34$63,204
May 20022,69994624.663.58$69,948
Apr 20022,62784623.653.51$65,100
Mar 20022,75382022.003.10$63,110
Feb 20022,69379718.222.38$50,960
Jan 20022,74181217.172.38$48,992
Dec 20013,00075316.932.36$52,570
Nov 20012,81987918.072.41$53,054
Oct 20012,81687419.782.53$57,911
Sep 20012,63973324.262.25$65,672
Aug 20012,89591424.873.05$74,789
Jul 20012,81697023.933.20$70,488
Jun 20012,37384424.563.82$61,508
May 20013,04787225.524.31$81,515
Apr 20012,85877024.685.34$74,644
Mar 20013,43673924.545.38$88,293
Feb 20012,54012127.755.77$71,183
Jan 20012,5403027.478.40$70,026
Dec 20002,94028326.889.12$81,609
Nov 20003,07751832.215.66$102,041
Oct 20003,12980831.235.15$101,876
Sep 20002,97285831.875.19$99,168
Aug 20003,13691629.644.54$97,110
Jul 20003,37389428.534.09$99,888
Jun 20003,13187429.304.40$95,582
May 20003,23294327.263.68$91,574
Apr 20003,39284324.513.12$85,765
Mar 20003,34328928.422.86$95,835
Feb 20003,17082027.622.73$89,791
Jan 20003,39583225.272.48$87,855
Dec 19993,60867524.282.42$89,238
Nov 19993,49689223.192.43$83,243
Oct 19993,76399720.982.80$81,743
Sep 19993,22684521.752.62$72,378
Aug 19993,7201,05619.262.88$74,684
Jul 19993,8881,11817.892.37$72,209
Jun 19993,33295715.942.36$55,373
May 19993,53998015.792.32$58,155
Apr 19993,32295615.102.21$52,273
Mar 19993,62089112.471.84$46,779
Feb 19993,6798369.981.82$38,236
Jan 19994,4641,04710.381.90$48,326
Dec 19983,8249079.201.77$36,789
Nov 19984,53198410.892.19$51,493
Oct 19984,58160512.421.97$58,087
Sep 19984,62188812.592.08$60,028
Aug 19984,9061,05111.301.91$57,442
Jul 19985,0041,25611.742.24$61,557
Jun 19984,7121,61911.242.24$56,585
May 19985,0581,45912.622.21$67,051
Apr 19984,9981,22613.042.51$68,245
Mar 19985,2521,28912.802.31$70,202
Feb 19984,8291,14313.952.30$69,992
Jan 19985,4601,20814.702.15$82,865
Dec 19975,50183216.322.41$91,782
Nov 19975,3131,01718.193.09$99,784
Oct 19975,7051,18519.253.15$113,554
Sep 19975,5111,16817.742.95$101,216
Aug 19975,83589217.862.55$106,492
Jul 19975,60680717.582.25$100,367
Jun 19975,59977317.242.26$98,272
May 19975,90978518.972.31$113,906
Apr 19975,8571,33417.882.08$107,502
Mar 19976,1201,31618.951.94$118,526
Feb 19975,5921,17120.492.21$117,163
Jan 19976,5051,45323.483.54$157,881
Dec 19966,3281,37823.32$147,569
Nov 19966,3351,35521.97$139,180
Oct 19966,6971,36523.31$156,107
Sep 19965,7941,27322.22$128,743
Aug 19966,7471,34320.26$136,694
Jul 19966,7121,30619.55$131,220
Jun 19967,2271,19618.73$135,362
May 19967,6361,20419.43$148,367
Apr 19967,6811,22621.51$165,218
Mar 19967,9391,33219.38$153,858
Feb 19967,3451,94416.98$124,718
Jan 19968,1811,90317.07$139,650
Dec 19958,0421,55317.19$138,242
Nov 19958,1491,38816.00$130,384
Oct 19958,4121,64215.43$129,797
Sep 19958,2762,08716.18$133,906
Aug 19958,7572,12015.92$139,411
Jul 19958,8802,38015.24$135,331
Jun 19958,8972,25216.41$146,000
May 19959,0292,38417.56$158,549
Apr 19959,2441,96617.73$163,896
Mar 19959,4631,98816.44$155,572
Feb 19958,7601,79416.58$145,241
Jan 19959,9381,66315.92$158,213
Dec 199410,2501,74715.03$154,058
Nov 19949,5762,17815.90$152,258
Oct 199410,3851,94915.58$161,798
Sep 199410,5392,20715.29$161,141
Aug 199410,9002,77716.13$175,817
Jul 199411,2032,29917.56$196,725
Jun 199411,0632,62917.09$189,067
May 199411,7062,02615.88$185,891
Apr 199411,6091,66814.14$164,151
Mar 199412,2002,09312.46$152,012
Feb 199411,3181,88312.50$141,475
Jan 199412,5481,82512.66$158,858
Dec 199313,0132,02912.33$160,450
Nov 199312,5262,06014.49$181,502
Oct 199313,4062,34015.85$212,485
Sep 199313,0652,25815.03$196,367
Aug 199313,6922,34215.66$214,417
Jul 199313,8642,23815.46$214,337
Jun 199313,6622,22816.79$229,385
May 199314,2862,52117.68$252,576
Apr 199314,0422,22118.05$253,458
Mar 199314,6261,93318.14$265,316
Feb 199313,4001,88717.90$239,860
Jan 199314,8222,15616.93$250,936

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                  162 bbl  × $106.41 =    $17,238
Casinghead gas        94 Mcf  × $  3.05 =       $286

────────────────────────────────────────────────────
Month total                                  $17,525

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. 8A/O/66345 is the state's own key, not one this site invented.