UNIVERSITY

Operated by APACHE CORPORATION (P-5 27200) in the BIG LAKE (ELLENBURGER) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 12586District 7CField 07919249NGPA filingOilCasinghead gasSaveExport
Value, all time
$31.9 M
Jan 1993 – Mar 2025
Value, last 12 filed months
$83 k
at the published price for each month
Months reported
387
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 2 leases and 11 wells, and the rule below applies to all of them.

Discovered
1928-01-08
as the register files it
Field class
Oil and gas
the register's own label
Between wells
no field rule filed
From a lease line
no field rule filed

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
OilDisposition504,971 bbl$22,569,555
Casinghead gasProduction3,046,295 Mcf$9,325,319
Total$31,894,874

929,400 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 (9)

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 31.2377, -101.6697. A lease has no coordinate of its own — that point is the mean of its wells, and they span 1.2 miles.

31.23677, -101.67146 · 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
100.0%
9 of 9 wells
With a plug date
100.0%
9 of 9 wells
Median depth
8,825 ft
9 wells filed one
Completion to plug
17.0 years
median over 4 wells

What the state filed about each well

On the RRC proration schedule
9100.0%
A plug date is filed
9100.0%
BothOn the schedule and plugged. Neither fact cancels the other.
9100.0%
NeitherNo plug date, and not on the schedule.
00.0%

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, 9 of 9 wells. Median 8,825 ft, with the middle half between 8,550 and 8,900 ft; the shallowest is 8,269 ft and the deepest 9,300 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, 4 of 9 wells, Aug 1987 – Feb 1998. This is the LAST completion filed on each wellbore, not the first — a well recompleted in 2019 counts once, in the 2010s.

Completions filed
Aug 1987 – Feb 1998
4 of 9 wells; 5 filed none
Plug dates filed
Jul 1992 – Mar 2025
9 of 9 wells

Last completion to plug: a median of 17.0 years across the 4 wells that filed both dates, with the middle half between 9.2 years and 24.0 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

9 wells

42-383003827C8,825 ftJul 2019Yes
42-3830038510C8,550 ftJan 2025Yes
42-3830039015C8,609 ftDec 2002Yes
42-3830039217C8,269 ftNov 2000Yes
42-3830039318C8,301 ftMar 2025Yes
42-383339762128,900 ftFeb 1998Feb 2025Yes
42-383339182049,150 ftJan 1989Jul 1992Yes
42-383339192059,300 ftDec 1988Dec 2011Yes
42-3830038712C8,857 ftAug 1987Aug 1998Yes

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 (387)

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

387 months

Mar 20250067.704.27$0
Feb 20250070.884.34$0
Jan 20250074.324.28$0
Dec 2024160068.993.12$11,038
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 20248501484.451.66$71,806
Mar 20247451,37080.301.55$61,940
Feb 20248761,44776.091.78$69,236
Jan 20245612,03073.023.30$47,658
Dec 20237422,15571.262.61$58,501
Nov 20233741,89877.892.81$34,460
Oct 20233602,02285.443.09$37,001
Sep 20234891,99089.042.74$48,983
Aug 20234381,54080.522.67$39,384
Jul 2023053374.852.64$1,408
Jun 2023065268.962.26$1,473
May 2023065770.622.23$1,463
Apr 2023057178.122.24$1,278
Mar 2023069672.852.39$1,666
Feb 2023042775.112.47$1,053
Jan 202332789676.533.39$28,061
Dec 202260864776.415.73$50,164
Nov 20229081,02985.005.65$82,990
Oct 20223641,59487.185.86$41,080
Sep 20228021,85184.888.16$83,185
Aug 20223812,05794.529.13$54,787
Jul 20224551,673101.587.54$58,837
Jun 20221,0011,095115.097.98$123,940
May 20226091,235109.378.43$77,021
Apr 2022291526104.226.84$33,925
Mar 2022441821108.885.08$52,184
Feb 202223365391.054.86$24,387
Jan 202249789981.844.54$44,754
Dec 20215731,09171.323.90$45,120
Nov 20215661,03477.435.24$49,240
Oct 20218491,54079.795.71$76,541
Sep 20212091,19269.865.35$20,979
Aug 2021335266.024.22$2,398
Jul 20212285970.783.98$16,373
Jun 20217561,16269.493.38$56,463
May 20218261,42063.483.02$56,720
Apr 20217401,35460.362.76$48,401
Mar 20211,0021,72761.302.72$66,115
Feb 20218152,48357.805.55$60,883
Jan 20211,7975,44150.412.81$105,877
Dec 20201,6475,63044.642.68$88,585
Nov 20201,6993,95438.772.71$76,572
Oct 20201,3324,24436.972.48$59,763
Sep 20201,0413,50137.091.99$45,581
Aug 20201,3264,46439.982.39$63,661
Jul 20201,1085,79138.371.83$53,083
Jun 20201,4815,17734.901.69$60,438
May 20201,4924,66516.921.81$33,710
Apr 20201,4694,73214.751.80$30,206
Mar 20201,4775,14630.341.86$54,364
Feb 20201,3044,90149.881.98$74,751
Jan 20201,4445,71257.252.09$94,634
Dec 20191,5925,96959.012.30$107,699
Nov 20191,5695,72455.302.75$102,511
Oct 20191,4515,97553.472.42$92,036
Sep 20191,3665,67055.052.66$90,265
Aug 20191,4435,36953.112.30$89,010
Jul 20191,02974856.272.46$59,742
Jun 20196092,40052.782.49$38,122
May 20191,3076,03858.482.74$92,979
Apr 20191,3476,07162.632.75$101,062
Mar 20191,3905,68356.803.06$96,354
Feb 20191,1034,05150.852.79$67,399
Jan 20191,3594,91446.033.23$78,418
Dec 20181,0323,66946.594.19$63,437
Nov 20181,0972,84552.934.24$70,119
Oct 20181,0082,78961.443.40$71,409
Sep 20181,2211,84359.543.11$78,426
Aug 20181,2614,30959.403.07$88,117
Jul 20181,2495,58865.142.93$97,743
Jun 20181,2056,73860.183.08$93,249
May 20181,1163,60265.382.90$83,413
Apr 20181,3616,85063.842.90$106,757
Mar 20181,5308,23961.222.79$116,627
Feb 20181,2227,25461.782.77$95,561
Jan 20181,3167,42362.874.01$112,498
Dec 20171,2586,89257.272.92$92,181
Nov 20171,2946,93955.423.12$93,352
Oct 20171,2627,72649.292.98$85,256
Sep 20171,2948,57847.523.09$87,974
Aug 20171,1553,95845.373.00$64,294
Jul 20171,5444,51743.873.09$81,681
Jun 20171,4043,17742.493.09$69,464
May 20171,0352,62745.373.26$55,531
Apr 20171,8067,62847.933.21$111,060
Mar 20171,6818,02246.772.98$102,555
Feb 20171,4647,53750.452.95$96,113
Jan 20171,3906,70949.413.42$91,617
Dec 20165404,27848.763.72$42,257
Nov 201630779342.492.64$15,141
Oct 20164591,23246.193.09$25,008
Sep 201640041.553.10$1,662
Aug 201627961441.442.92$13,357
Jul 20165131,34441.622.92$25,281
Jun 20165381,33745.352.69$27,989
May 201627795542.521.99$13,679
Apr 20165988136.561.99$3,911
Mar 20161081,05433.011.79$5,456
Feb 201619179226.472.06$6,690
Jan 2016273027.352.36$7,467
Dec 20152562032.362.00$8,324
Nov 2015249938.792.17$9,678
Oct 201524341943.552.43$11,599
Sep 20152371,32542.992.76$13,844
Aug 201523473340.162.87$11,503
Jul 20155793,83748.152.95$39,179
Jun 20155872,32656.152.88$39,666
May 20153461,89655.212.96$24,706
Apr 20153931,66049.822.71$24,072
Mar 20154911,53242.892.93$25,555
Feb 20154161,30444.662.98$22,460
Jan 20153331,12243.433.10$17,941
Dec 20145121,71254.693.59$34,150
Nov 20146522,47970.464.25$56,480
Oct 20141,4706,21678.303.90$139,349
Sep 20146992,65086.164.05$70,946
Aug 20141,0364,95589.394.04$112,602
Jul 20149132,90896.564.18$100,314
Jun 20141,1423,79398.164.74$130,066
May 20141,55237894.734.73$148,808
Apr 20141,5595,68095.944.81$176,886
Mar 20141,5486,15395.895.06$179,552
Feb 20141,3355,69097.406.19$165,261
Jan 20141,3586,12190.404.86$152,516
Dec 20131,3285,01091.824.35$143,753
Nov 20131,0374,70388.853.74$109,719
Oct 20131,3456,61997.423.78$156,045
Sep 20131,0115,247104.113.72$124,762
Aug 20136285,546104.253.52$85,005
Jul 20131,1035,854102.523.72$134,843
Jun 20139106,15294.403.93$110,102
May 20131,6367,29194.834.15$185,393
Apr 20131,7517,16393.964.28$195,200
Mar 20131,8687,42593.623.91$203,935
Feb 20131,6696,61391.233.42$174,879
Jan 20131,8657,00091.603.42$194,773
Dec 20121,6867,26086.773.42$171,125
Nov 20121,2896,79186.953.62$136,696
Oct 20121,3947,15989.383.40$148,934
Sep 20121,2346,68794.672.92$136,338
Aug 20121,6747,23192.662.91$176,142
Jul 20121,7687,20785.133.02$172,281
Jun 20121,7356,94879.822.52$155,990
May 20121,7597,50491.612.49$179,814
Apr 20121,7956,952101.652.00$196,344
Mar 20121,9170105.052.22$201,381
Feb 20121,6716,219101.102.57$184,922
Jan 20121,9246,69798.092.73$207,035
Dec 20111,6986,35796.873.24$185,080
Nov 20111,8936,86095.723.31$203,913
Oct 20111,8767,32284.983.65$186,137
Sep 20111,7827,13683.623.99$177,454
Aug 20111,6337,80883.404.15$168,590
Jul 20111,6086,90094.144.52$182,546
Jun 20111,6487,61092.904.64$188,409
May 20111,4347,50598.134.40$173,777
Apr 20111,2306,493105.964.33$158,467
Mar 20111,4857,02196.364.06$171,581
Feb 20111,5096,90685.644.18$158,098
Jan 20111,6997,65886.504.59$182,104
Dec 20101,4487,43485.734.35$156,458
Nov 20101,5605,10780.843.80$145,493
Oct 20101,6397,64978.103.51$154,845
Sep 20101,6157,71972.633.98$148,015
Aug 20101,5108,06973.684.42$146,917
Jul 20101,4748,07872.554.74$145,200
Jun 20101,4537,62370.364.91$139,665
May 20101,3857,18271.124.24$128,919
Apr 20101,0756,60981.694.12$115,064
Mar 20101,1917,81278.394.39$127,647
Feb 20101,0877,07173.585.44$118,464
Jan 20101,3907,92074.365.96$150,596
Dec 20091,1867,59171.445.48$126,355
Nov 20091,2347,59574.593.75$120,537
Oct 20095146,25572.544.11$62,995
Sep 20098547,40665.543.06$78,669
Aug 20091,1197,41567.423.22$99,308
Jul 20091,0808,39861.133.46$95,115
Jun 20091,2067,53166.163.90$109,122
May 20091,4057,34554.743.93$105,744
Apr 20091,3266,92846.773.59$86,871
Mar 20091,4337,70242.144.06$91,649
Feb 20099405,01532.814.63$54,076
Jan 20091,1267,65135.865.37$81,472
Dec 20081,1396,29437.105.98$79,877
Nov 20081,1337,16455.496.86$112,018
Oct 20081,2126,97675.246.92$139,479
Sep 20081,1324,976101.767.88$154,389
Aug 20081,0746,603114.228.48$178,686
Jul 20081,1607,581131.0811.39$238,396
Jun 20081,1557,161131.3313.03$245,013
May 20081,2617,560123.1711.57$242,819
Apr 20081,0306,956110.3110.45$186,343
Mar 20089277,176101.909.66$163,811
Feb 20088386,48292.538.77$134,391
Jan 20089306,71790.388.21$139,171
Dec 20078845,92688.337.30$121,355
Nov 20078496,44091.677.29$124,786
Oct 20078886,91182.856.92$121,409
Sep 20071,0724,55075.846.24$109,711
Aug 20071,1143,39569.066.39$98,620
Jul 20071,1665,40770.906.39$117,209
Jun 20071,1518,44362.007.55$135,094
May 20071,2378,03458.747.85$135,698
Apr 20071,2487,93159.617.81$136,296
Mar 20071,2978,04856.927.30$132,591
Feb 20071,1157,13055.108.22$120,017
Jan 20071,3126,08850.306.73$106,947
Dec 20061,2928,60556.656.92$132,725
Nov 20061,2977,91054.207.62$130,552
Oct 20061,29810,88454.906.01$136,714
Sep 20061,31610,89360.085.04$133,936
Aug 20061,19411,27368.717.34$164,783
Jul 20061,2599,49169.376.34$147,536
Jun 20061,25111,01366.286.38$153,222
May 20061,30711,39066.016.42$159,456
Apr 20061,33912,67864.397.36$179,534
Mar 20061,3379,89756.707.08$145,908
Feb 20061,1877,02857.597.75$122,834
Jan 20061,3417,54960.598.93$148,689
Dec 20051,2317,98354.9413.42$174,726
Nov 20051,2847,47054.6910.59$149,317
Oct 20051,3137,82258.3413.80$184,511
Sep 20051,3039,70861.4512.08$197,332
Aug 20051,3188,33461.519.80$162,717
Jul 20051,2179,18955.697.84$139,850
Jun 20051,2708,31052.337.38$127,796
May 20051,3219,17545.226.65$120,760
Apr 20051,2687,92349.207.36$120,703
Mar 20051,4354,08650.377.15$101,516
Feb 20051,2166,31045.226.31$94,816
Jan 20051,2946,60443.166.32$97,601
Dec 20041,2057,05439.866.75$95,653
Nov 20041,1445,38045.286.33$85,858
Oct 20041,2437,24549.706.52$108,979
Sep 20041,2967,23643.245.28$94,273
Aug 20041,7297,43542.375.55$114,527
Jul 20041,2927,65238.286.08$96,014
Jun 20041,0836,67236.106.43$82,017
May 20049707,04537.486.49$82,110
Apr 20049665,91034.475.86$67,922
Mar 20041,0927,22234.365.53$77,460
Feb 20049386,94132.455.51$68,680
Jan 20047713,73432.036.30$48,218
Dec 20031,2499,93930.266.30$100,427
Nov 20031,3369,53828.804.60$82,305
Oct 20031,25010,24628.174.76$83,980
Sep 20031,1769,37326.314.75$75,456
Aug 20031,22711,63529.765.13$96,200
Jul 20031,04711,38529.415.17$89,662
Jun 20038569,51428.565.98$81,369
May 200378810,40426.595.97$83,093
Apr 20031,03313,30526.675.41$99,494
Mar 20031,17814,79031.146.10$126,843
Feb 200394112,53233.487.93$130,832
Jan 20039839,62630.315.58$83,527
Dec 200298911,22826.914.85$81,112
Nov 20021,01212,39424.664.14$76,229
Oct 20021,09013,40626.464.23$85,537
Sep 20021,02813,65327.443.64$77,840
Aug 20021,02614,05325.963.16$71,101
Jul 20021,12514,06324.583.06$70,710
Jun 20021,07114,90323.733.34$75,165
May 20021,09814,71224.663.58$79,804
Apr 20021,07715,46523.653.51$79,789
Mar 20021,17015,17322.003.10$72,818
Feb 20021,15810,98918.222.38$47,205
Jan 20021,23711,86517.172.38$49,427
Dec 20011,19511,43116.932.36$47,259
Nov 20011,0829,11418.072.41$41,476
Oct 20019109,82319.782.53$42,841
Sep 20019339,92724.262.25$44,983
Aug 200198011,05424.873.05$58,122
Jul 20017918,33523.933.20$45,576
Jun 200197011,32324.563.82$67,124
May 20011,0008,64925.524.31$62,774
Apr 20011,0879,47224.685.34$77,363
Mar 20011,0163,96324.545.38$46,239
Feb 20018343,67427.755.77$44,332
Jan 20019569,72427.478.40$107,931
Dec 20001,013026.889.12$27,229
Nov 200099511,17632.215.66$95,283
Oct 20001,01210,65131.235.15$86,409
Sep 200099310,01231.875.19$83,574
Aug 200095810,12929.644.54$74,388
Jul 20009738,26328.534.09$61,553
Jun 20008127,29029.304.40$55,848
May 20001,02510,29827.263.68$65,836
Apr 20009989,97824.513.12$55,552
Mar 20009599,93128.422.86$55,655
Feb 20007969,52027.622.73$47,942
Jan 20001,1339,63925.272.48$52,540
Dec 19991,0549,76424.282.42$49,256
Nov 19991,08710,21723.192.43$50,076
Oct 19991777,11420.982.80$23,659
Sep 19991526,61821.752.62$20,638
Aug 19991727,36719.262.88$24,497
Jul 19991505,73617.892.37$16,291
Jun 19991895,50915.942.36$16,025
May 199997611,47715.792.32$42,049
Apr 199994211,78215.102.21$40,239
Mar 199980313,05812.471.84$34,018
Feb 199975710,8199.981.82$27,222
Jan 199985612,16110.381.90$31,991
Dec 199878311,5889.201.77$27,753
Nov 19981,5169,35110.892.19$36,948
Oct 1998176012.421.97$2,186
Sep 19980012.592.08$0
Aug 199814011.301.91$158
Jul 199864814,64611.742.24$40,375
Jun 199872116,12111.242.24$44,171
May 199861515,56812.622.21$42,110
Apr 19981,46316,12413.042.51$59,473
Mar 199898917,49912.802.31$53,072
Feb 19981,17716,53613.952.30$54,438
Jan 19981,2868,44814.702.15$37,108
Dec 19971,2088,64316.322.41$40,554
Nov 19971,2158,88118.193.09$49,528
Oct 19971,7379,55119.253.15$63,521
Sep 19971,5039,31117.742.95$54,176
Aug 19971,5699,91917.862.55$53,363
Jul 19971,46510,45717.582.25$49,251
Jun 19971,62412,75417.242.26$56,786
May 19971,82513,00418.972.31$64,640
Apr 19972,12510,71217.882.08$60,306
Mar 19971,7129,84218.951.94$51,527
Feb 19971,3418,57920.492.21$46,402
Jan 19972,10315,49423.483.54$104,223
Dec 19962,52317,05223.32$58,836
Nov 19962,65215,37021.97$58,264
Oct 19962,92415,97423.31$68,158
Sep 19962,91816,52522.22$64,838
Aug 19962,77320,96220.26$56,181
Jul 19962,77117,47819.55$54,173
Jun 19962,52218,10418.73$47,237
May 19962,59418,74819.43$50,401
Apr 19962,40314,27421.51$51,689
Mar 19962,56814,88619.38$49,768
Feb 19962,74215,57616.98$46,559
Jan 19962,94715,94617.07$50,305
Dec 19953,43916,68517.19$59,116
Nov 19953,42817,10416.00$54,848
Oct 19952,92317,90815.43$45,102
Sep 19953,05818,33316.18$49,478
Aug 19953,12018,78915.92$49,670
Jul 19952,82814,40715.24$43,099
Jun 19952,48013,52616.41$40,697
May 19953,29018,71917.56$57,772
Apr 19953,10819,03817.73$55,105
Mar 19953,03417,18516.44$49,879
Feb 19953,22716,74316.58$53,504
Jan 19953,03416,83015.92$48,301
Dec 19943,54118,01615.03$53,221
Nov 19942,91417,14315.90$46,333
Oct 19943,10318,24115.58$48,345
Sep 19942,80018,01015.29$42,812
Aug 19942,95019,83816.13$47,584
Jul 19943,19920,48117.56$56,174
Jun 19942,65420,53017.09$45,357
May 19942,63719,75215.88$41,876
Apr 19943,05519,06414.14$43,198
Mar 19943,02620,15912.46$37,704
Feb 19943,19020,01612.50$39,875
Jan 19943,54022,40512.66$44,816
Dec 19933,55221,13112.33$43,796
Nov 19933,78221,88614.49$54,801
Oct 19934,18626,31615.85$66,348
Sep 19933,99024,56915.03$59,970
Aug 19933,65426,01415.66$57,222
Jul 19934,20425,05915.46$64,994
Jun 19934,27324,52516.79$71,744
May 19934,56324,51517.68$80,674
Apr 19934,33424,24918.05$78,229
Mar 19934,98125,47318.14$90,355
Feb 19933,83723,18017.90$68,682
Jan 19935,10122,66616.93$86,360

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.

Dec 2024 — as filed, then multipliedworked
Oil                  160 bbl  × $ 68.99 =    $11,038
Casinghead gas         0 Mcf  × $  3.12 =         $0

────────────────────────────────────────────────────
Month total                                  $11,038

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. 7C/O/12586 is the state's own key, not one this site invented.