LEAH

Operated by COG OPERATING LLC (P-5 166150) in the SPRABERRY (TREND AREA) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 15480District 7CField 85279200OilCasinghead gasSaveExport
Value, all time
$55.5 M
Oct 2003 – May 2026
Value, last 12 filed months
$0
at the published price for each month
Months reported
272
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 7,461 leases and 22,481 wells, and the rule below applies to all of them.

Discovered
1904-12-31
as the register files it
Field class
Oil and gas
the register's own label
Between wells
0 ft
minimum
From a lease line
330 ft
minimum

A drilling unit in this field needs at least 80 acres. The field rule took effect on 2016-03-08.

The Commission's schedule remark for this field reads: AREA) 85279200.

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
OilDisposition616,383 bbl$46,010,372
Casinghead gasProduction2,204,978 Mcf$9,518,158
Total$55,528,530

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 31.4353, -102.0700. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.9 miles.

31.43556, -102.06959 · 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
55.6%
5 of 9 wells
With a plug date
55.6%
5 of 9 wells
Median depth
10,450 ft
9 wells filed one
Completion to plug
12.9 years
median over 5 wells

What the state filed about each well

On the RRC proration schedule
555.6%
A plug date is filed
555.6%
BothOn the schedule and plugged. Neither fact cancels the other.
555.6%
NeitherNo plug date, and not on the schedule.
444.4%

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 10,450 ft, with the middle half between 10,431 and 10,519 ft; the shallowest is 10,350 ft and the deepest 10,542 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 9 wells, Oct 2003 – Oct 2012. This is the LAST completion filed on each wellbore, not the first — a well recompleted in 2019 counts once, in the 2010s.

Completions filed
Oct 2003 – Oct 2012
9 of 9 wells
Plug dates filed
Oct 2017 – Oct 2025
5 of 9 wells; 4 filed none

Last completion to plug: a median of 12.9 years across the 5 wells that filed both dates, with the middle half between 7.4 years and 15.0 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

9 wells

42-461383301910,431 ftOct 2012
42-46137940710,542 ftJun 2012Dec 2018Yes
42-46137815810,534 ftMar 2012
42-46136837310,453 ftOct 2010Oct 2025Yes
42-46136664510,443 ftMay 2010Oct 2017Yes
42-46136451610,519 ftMar 2010Feb 2023Yes
42-46136383410,410 ftDec 2009May 2025Yes
42-46134484210,450 ftJun 2005
42-46134400110,350 ftOct 2003

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 (272)

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

272 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 2025147060.553.23$8,901
Apr 20250062.363.54$0
Mar 20250067.704.27$0
Feb 20250070.884.34$0
Jan 20250074.324.28$0
Dec 2024023268.993.12$724
Nov 2024036569.052.20$802
Oct 202426232971.372.28$19,450
Sep 2024030869.612.36$728
Aug 2024018375.632.06$378
Jul 202431327379.932.15$25,604
Jun 2024027578.082.63$724
May 20240078.812.20$0
Apr 202439445084.451.66$34,020
Mar 2024086880.301.55$1,341
Feb 20243001,06076.091.78$24,718
Jan 202401,11073.023.30$3,660
Dec 20232731,06671.262.61$22,237
Nov 20232951,04477.892.81$25,909
Oct 202301,09885.443.09$3,390
Sep 202339889789.042.74$37,891
Aug 202319695580.522.67$18,335
Jul 2023098774.852.64$2,607
Jun 202319888568.962.26$15,653
May 20232621,10770.622.23$20,968
Apr 20231721,05778.122.24$15,802
Mar 20231821,12372.852.39$15,946
Feb 20232371,10375.112.47$20,521
Jan 20234351,37076.533.39$37,932
Dec 20222301,27076.415.73$24,850
Nov 202220591585.005.65$22,591
Oct 202220786987.185.86$23,142
Sep 202221281684.888.16$24,656
Aug 202218985594.529.13$25,668
Jul 2022222877101.587.54$29,165
Jun 2022171840115.097.98$26,381
May 2022230852109.378.43$32,340
Apr 2022211857104.226.84$27,850
Mar 2022268888108.885.08$33,688
Feb 202244899491.054.86$45,620
Jan 20222861,10481.844.54$28,416
Dec 20215061,13471.323.90$40,510
Nov 20215671,04177.435.24$49,354
Oct 20215481,16279.795.71$50,364
Sep 20212841,24269.865.35$26,486
Aug 20213841,26466.024.22$30,687
Jul 20217301,29770.783.98$56,834
Jun 20213411,27269.493.38$27,996
May 20213601,28063.483.02$26,715
Apr 20219791,18660.362.76$62,364
Mar 20213431,14861.302.72$24,145
Feb 20213741,07857.805.55$27,598
Jan 20217131,25050.412.81$39,455
Dec 20203571,22244.642.68$19,206
Nov 20207681,20638.772.71$33,039
Oct 20207301,25836.972.48$30,106
Sep 202001,19037.091.99$2,369
Aug 202072333339.982.39$29,700
Jul 202045434238.371.83$18,044
Jun 202034949434.901.69$13,015
May 202035073616.921.81$7,258
Apr 20207411,04414.751.80$12,814
Mar 20207591,34530.341.86$25,525
Feb 20201,2321,75349.881.98$64,924
Jan 20201,2852,03957.252.09$77,837
Dec 20198011,94559.012.30$51,749
Nov 20191,4101,62255.302.75$82,435
Oct 20191,1511,85053.472.42$66,018
Sep 20191,4781,90555.052.66$86,426
Aug 20191,0881,78553.112.30$61,897
Jul 20199741,77056.272.46$59,161
Jun 20197061,38252.782.49$40,706
May 20197701,30458.482.74$48,603
Apr 20197051,20762.632.75$47,474
Mar 20197121,22656.803.06$44,196
Feb 20199111,11350.852.79$49,432
Jan 20197191,08846.033.23$36,608
Dec 201886192646.594.19$43,990
Nov 20181,00686952.934.24$56,930
Oct 20183951,25561.443.40$28,533
Sep 20181,1901,41159.543.11$75,238
Aug 20181,3281,62159.403.07$83,854
Jul 20181,2982,78565.142.93$92,717
Jun 20181,2762,67260.183.08$85,011
May 20181,3442,87565.382.90$96,211
Apr 20181,2012,12763.842.90$82,842
Mar 20181,6712,27861.222.79$108,647
Feb 20182,1152,43561.782.77$137,400
Jan 20181,7802,79262.874.01$123,103
Dec 20171,6262,65357.272.92$100,872
Nov 20171,3672,52355.423.12$83,627
Oct 20171,6222,92349.292.98$88,670
Sep 20171,6523,41947.523.09$89,058
Aug 20172,0854,44045.373.00$107,936
Jul 20172,1244,53843.873.09$107,190
Jun 20173851,62642.493.09$21,379
May 20174001,79545.373.26$24,006
Apr 20174381,70547.933.21$26,469
Mar 201701,89246.772.98$5,645
Feb 20174232,13850.452.95$27,653
Jan 20178874,16749.413.42$58,073
Dec 20161,6683,93648.763.72$95,985
Nov 20162222,64342.492.64$16,422
Oct 201602,11946.193.09$6,548
Sep 20162,45610,39941.553.10$134,290
Aug 20161,3748,82141.442.92$82,734
Jul 20168728,31041.622.92$60,594
Jun 20166947,32645.352.69$51,149
May 20161,0427,53542.521.99$59,308
Apr 20161,0688,96136.561.99$56,888
Mar 20161,75611,59333.011.79$78,764
Feb 20161,05810,32126.472.06$49,304
Jan 20161,41313,01227.352.36$69,411
Dec 20151,41214,46432.362.00$74,641
Nov 20151,77215,94838.792.17$103,300
Oct 20152,24915,77143.552.43$136,214
Sep 20152,26115,74842.992.76$140,640
Aug 20152,06015,36340.162.87$126,860
Jul 20151,38714,80548.152.95$110,386
Jun 20152,08015,72356.152.88$162,119
May 20151,74817,14455.212.96$147,175
Apr 20152,06618,15549.822.71$152,066
Mar 20152,75519,53442.892.93$175,489
Feb 20151,04216,45744.662.98$95,515
Jan 20153,14621,39643.433.10$202,972
Dec 20142,49725,07354.693.59$226,607
Nov 20143,19528,64970.464.25$346,931
Oct 20143,71834,04478.303.90$423,924
Sep 20145,11540,13186.164.05$603,056
Aug 20146,31628,23989.394.04$678,535
Jul 20145,62726,77396.564.18$655,244
Jun 20144,38225,47098.164.74$550,785
May 20143,17222,64794.734.73$407,526
Apr 20144,06620,93995.944.81$490,790
Mar 20143,00019,20995.895.06$384,806
Feb 20143,86619,84997.406.19$499,453
Jan 20144,16222,07590.404.86$483,545
Dec 20134,20521,98291.824.35$481,823
Nov 20132,55319,77688.853.74$300,762
Oct 20134,02423,68297.423.78$481,521
Sep 20133,64924,766104.113.72$471,971
Aug 20134,39226,391104.253.52$550,831
Jul 20135,44030,184102.523.72$669,925
Jun 20136,09430,41094.403.93$694,889
May 20136,24329,60894.834.15$714,870
Apr 20134,98125,47293.964.28$577,101
Mar 20138,60545,45493.623.91$983,456
Feb 20138,53134,48391.233.42$896,212
Jan 201310,14331,25891.603.42$1,035,998
Dec 20128,24631,21986.773.42$822,279
Nov 20125,77320,21886.953.62$575,252
Oct 20125,54218,38489.383.40$557,844
Sep 20125,58817,98194.672.92$581,492
Aug 20126,98623,29092.662.91$715,054
Jul 20125,20328,57385.133.02$529,245
Jun 20127,14030,25279.822.52$646,121
May 20125,85622,93391.612.49$593,533
Apr 20125,19620,396101.652.00$568,900
Mar 20122,76920,115105.052.22$335,581
Feb 20122,61921,112101.102.57$319,044
Jan 20123,88023,68698.092.73$445,349
Dec 20114,94237,54596.873.24$600,368
Nov 201110,15340,25595.723.31$1,105,141
Oct 201110,94229,03984.983.65$1,035,801
Sep 20119,84731,24583.623.99$947,942
Aug 20117,76631,29383.404.15$777,529
Jul 20116,23532,99294.144.52$735,996
Jun 20118,30026,37792.904.64$893,456
May 20119,39523,26598.134.40$1,024,409
Apr 201110,94221,443105.964.33$1,252,333
Mar 201110,64918,50196.364.06$1,101,202
Feb 20117,14411,22585.644.18$658,732
Jan 201110,32315,42586.504.59$963,721
Dec 20109,18713,91685.734.35$848,105
Nov 20107,85312,66680.843.80$682,908
Oct 20104,6827,71878.103.51$392,746
Sep 20103,8727,28372.633.98$310,206
Aug 20105,5258,62973.684.42$445,217
Jul 20104,9478,81672.554.74$400,662
Jun 20105,9118,54070.364.91$457,833
May 20105,1637,71471.124.24$399,863
Apr 20104,3087,09081.694.12$381,150
Mar 20102,8443,52078.394.39$238,389
Feb 20102,0163,60473.585.44$167,952
Jan 20101,8253,42674.365.96$156,140
Dec 20091,2753,14771.445.48$108,343
Nov 20091,0773,26174.593.75$92,567
Oct 20098863,67172.544.11$79,359
Sep 20098723,44965.543.06$67,721
Aug 20097014,06567.423.22$60,345
Jul 20091,0514,55061.133.46$80,011
Jun 20091,0504,53266.163.90$87,120
May 20098754,63354.743.93$66,086
Apr 20091,0584,58846.773.59$65,942
Mar 20091,0654,86142.144.06$64,610
Feb 20091,2594,28232.814.63$61,146
Jan 20091,1194,88135.865.37$66,343
Dec 20081,0894,89037.105.98$69,630
Nov 20089165,08655.496.86$85,721
Oct 20081,4093,87875.246.92$132,857
Sep 20081,4295,771101.767.88$190,874
Aug 20081,0736,677114.228.48$179,199
Jul 20081,6036,966131.0811.39$289,460
Jun 20081,2616,139131.3313.03$245,614
May 20081,0696,700123.1711.57$209,216
Apr 20081,7536,705110.3110.45$263,473
Mar 20081,2466,606101.909.66$190,808
Feb 20081,9515,55792.538.77$229,264
Jan 20081,0963,34090.388.21$126,464
Dec 20071,0525,01288.337.30$129,521
Nov 20071,4135,49991.677.29$169,627
Oct 20078825,83082.856.92$113,429
Sep 20071,2526,68475.846.24$136,688
Aug 20071,5747,68369.066.39$157,779
Jul 20071,5718,15670.906.39$163,484
Jun 20071,7618,24162.007.55$171,389
May 20071,60311,20658.747.85$182,086
Apr 20072,31711,01459.617.81$224,083
Mar 20072,67610,00956.927.30$225,403
Feb 20072,7027,59555.108.22$211,281
Jan 20071,4822,74750.306.73$93,023
Dec 20062,9587,48356.656.92$219,341
Nov 20062,9937,37954.207.62$218,430
Oct 20061,8085,04754.906.01$129,611
Sep 20063,29110,02460.085.04$248,216
Aug 20063,98411,97768.717.34$361,651
Jul 20063,78514,98269.376.34$357,593
Jun 20065,24414,36666.286.38$439,283
May 20064,78512,88166.016.42$398,618
Apr 20061,0752,58564.397.36$88,246
Mar 20062,8884,24756.707.08$193,831
Feb 20062,1602,83957.597.75$146,400
Jan 20061,2203,15160.598.93$102,069
Dec 20053,0225,07554.9413.42$234,112
Nov 20052,9556,30054.6910.59$228,316
Oct 20053,2437,18258.3413.80$288,278
Sep 20054,1606,87261.4512.08$338,639
Aug 20053,6117,13261.519.80$291,984
Jul 20054,4677,10255.697.84$304,473
Jun 20053,9255,14052.337.38$243,334
May 20053,7334,29945.226.65$197,400
Apr 20054,2445,34749.207.36$248,161
Mar 20055,5855,81250.377.15$322,901
Feb 20053,5224,20745.226.31$185,819
Jan 20053,1113,94343.166.32$159,199
Dec 20043,8403,62539.866.75$177,535
Nov 20044,1604,44845.286.33$216,523
Oct 20042,4193,23149.706.52$141,275
Sep 20047311,14843.245.28$37,674
Aug 20042,3303,54342.375.55$118,388
Jul 20044,0337,50738.286.08$200,057
Jun 20046,84611,99036.106.43$324,273
May 20045,9407,51837.486.49$271,457
Apr 20042,9505,13834.475.86$131,787
Mar 20041,2883,13434.365.53$61,587
Feb 20041,2971,43232.455.51$49,977
Jan 20042,0133,48632.036.30$86,437
Dec 20032,43183630.266.30$78,830
Nov 2003115028.804.60$718
Oct 2003211528.174.76$604

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 2025 — as filed, then multipliedworked
Oil                  147 bbl  × $ 60.55 =     $8,901
Casinghead gas         0 Mcf  × $  3.23 =         $0

────────────────────────────────────────────────────
Month total                                   $8,901

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/15480 is the state's own key, not one this site invented.