THELMA LOU

Operated by DIAMONDBACK E&P LLC (P-5 217012) in the SALLIE ANN (SPRABERRY-WOLFCAMP) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 38904District 08Field 79820800OilCasinghead gasSaveExport
Value, all time
$24.2 M
Feb 2008 – May 2026
Value, last 12 filed months
$840 k
at the published price for each month
Months reported
220
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 125 leases and 849 wells, and the rule below applies to all of them.

Discovered
2004-12-13
as the register files it
Field class
Oil and gas
the register's own label
Between wells
500 ft
minimum
From a lease line
660 ft
minimum

A drilling unit in this field needs at least 40 acres. The field rule took effect on 2012-11-20.

The Commission's schedule remark for this field reads: FIELDS

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
OilDisposition298,190 bbl$21,609,772
Casinghead gasProduction735,066 Mcf$2,589,934
Total$24,199,706

Wells on this lease (5)

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 31.8139, -102.3704. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.7 miles.

31.81391, -102.37128 · 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
0.0%
0 of 5 wells
With a plug date
0.0%
0 of 5 wells
Median depth
10,203 ft
5 wells filed one
Completion to plug
no well filed both dates

What the state filed about each well

On the RRC proration schedule
00.0%
A plug date is filed
00.0%
BothOn the schedule and plugged. Neither fact cancels the other.
00.0%
NeitherNo plug date, and not on the schedule.
5100.0%

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

Between 10,056 and 10,233 ft, median 10,203 ft, over the 5 wells that filed a depth.

Completions filed
Feb 2008 – Oct 2017
5 of 5 wells

5 wells

42-135400041110,203 ftOct 2017
42-135400031310,213 ftApr 2016
42-13541919110,056 ftFeb 2014
42-13539886710,120 ftNov 2009
42-13539403210,233 ftFeb 2008

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 (220)

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

220 months

May 20261,1642,636106.413.05$131,890
Apr 20261,4681,84298.932.87$150,515
Mar 20261,0721,48889.753.15$100,898
Feb 20265001,35563.503.75$36,832
Jan 20267691,77459.138.00$59,659
Dec 20251,1132,33156.664.41$73,350
Nov 20252,1842,66858.593.93$138,436
Oct 20254641,56059.383.30$32,708
Sep 202519181262.743.08$14,482
Aug 20250063.933.01$0
Jul 20257971,56566.743.32$58,380
Jun 20255971,05366.483.13$42,983
May 202520850260.553.23$14,217
Apr 20258301,71362.363.54$57,828
Mar 20251,0202,34167.704.27$79,046
Feb 20259642,01870.884.34$77,088
Jan 20258782,06074.324.28$74,067
Dec 202401,02968.993.12$3,212
Nov 20241,6022,66569.052.20$116,477
Oct 20241,3493,13271.372.28$103,423
Sep 20244951,57169.612.36$38,171
Aug 20246351,35075.632.06$50,811
Jul 20248091,72979.932.15$68,375
Jun 20246141,79278.082.63$52,661
May 20245552,25078.812.20$48,686
Apr 20247872,68684.451.66$70,919
Mar 20249583,12080.301.55$81,748
Feb 20247831,74976.091.78$62,698
Jan 20245281,86573.023.30$44,705
Dec 20238473,25471.262.61$68,853
Nov 20236473,19977.892.81$59,376
Oct 20238673,07085.443.09$83,554
Sep 20237913,17689.042.74$79,117
Aug 20231,0462,35180.522.67$90,508
Jul 20232121,86574.852.64$20,795
Jun 20236331,97568.962.26$48,112
May 20231,0193,02770.622.23$78,704
Apr 20231,0223,04878.122.24$86,659
Mar 20231,1183,18772.852.39$89,073
Feb 20235562,43175.112.47$47,755
Jan 20237342,93976.533.39$66,130
Dec 20227162,62376.415.73$69,737
Nov 20226472,13485.005.65$67,044
Oct 20224012,03887.185.86$46,910
Sep 20228612,24284.888.16$91,385
Aug 20226402,55894.529.13$83,840
Jul 20226552,487101.587.54$85,292
Jun 20224212,048115.097.98$64,790
May 20227012,219109.378.43$95,381
Apr 20228552,208104.226.84$104,206
Mar 20225591,481108.885.08$68,382
Feb 20225871,86291.054.86$62,494
Jan 20226121,99181.844.54$59,121
Dec 20211,3512,34971.323.90$105,512
Nov 20211,1852,08477.435.24$102,668
Oct 20211,4022,32279.795.71$125,133
Sep 202137287569.865.35$30,670
Aug 20217811,47066.024.22$57,766
Jul 20213361,17570.783.98$28,461
Jun 20214101,61269.493.38$33,940
May 202140235863.483.02$26,599
Apr 20216771,20260.362.76$44,179
Mar 20219763,03361.302.72$68,069
Feb 20214601,05957.805.55$32,463
Jan 20218582,26450.412.81$49,614
Dec 20206512,10144.642.68$34,682
Nov 20208202,72538.772.71$39,167
Oct 20201,0863,17136.972.48$48,009
Sep 20201,1652,53737.091.99$48,261
Aug 20201,4882,45439.982.39$65,343
Jul 20201,7802,90438.371.83$73,599
Jun 20201,9001,36934.901.69$68,624
May 202004,35016.921.81$7,894
Apr 20201,5162,67314.751.80$27,184
Mar 20201,2132,78230.341.86$41,966
Feb 20201,5143,21649.881.98$81,888
Jan 20201,8664,09057.252.09$115,396
Dec 20191,3793,00359.012.30$88,295
Nov 20191,1513,05555.302.75$72,054
Oct 20191,4374,38053.472.42$87,430
Sep 20191,0142,13155.052.66$61,483
Aug 20191,2943,77453.112.30$77,421
Jul 20193,4883,67356.272.46$205,306
Jun 20191,1014,02352.782.49$68,133
May 20191,2803,08758.482.74$83,314
Apr 20191,1723,59062.632.75$83,277
Mar 20199043,47256.803.06$61,979
Feb 20198743,22750.852.79$53,453
Jan 20191,1533,68946.033.23$64,981
Dec 2018553,93146.594.19$19,015
Nov 20181,2753,66952.934.24$83,032
Oct 20181,3253,59761.443.40$93,631
Sep 20181,0642,77259.543.11$71,966
Aug 20181,2664,03259.403.07$87,565
Jul 20189107,74565.142.93$81,985
Jun 20181,1846,61760.183.08$91,613
May 20181,4323,68765.382.90$104,319
Apr 20181,8864,56763.842.90$133,650
Mar 20181,9953,80061.222.79$132,724
Feb 20181,1022,01361.782.77$73,650
Jan 20181,4503,61262.874.01$105,643
Dec 20171,9774,45657.272.92$126,241
Nov 20171,3684,29455.423.12$89,205
Oct 20171,3354,26849.292.98$78,537
Sep 20171,4454,97447.523.09$84,023
Aug 20171,8666,41145.373.00$103,922
Jul 20171,8726,22643.873.09$101,346
Jun 20171,9055,41042.493.09$97,646
May 20171,4135,18545.373.26$81,029
Apr 20171,8225,24047.933.21$104,157
Mar 20171,8995,15946.772.98$104,209
Feb 20171,2133,98750.452.95$72,968
Jan 20172,3755,19949.413.42$135,123
Dec 20161,6345,79948.763.72$101,263
Nov 20162,0475,29042.492.64$100,966
Oct 20162,3106,06146.193.09$125,429
Sep 20161,3153,71441.553.10$66,154
Aug 20161,1793,71441.442.92$59,719
Jul 20161,4284,28641.622.92$71,967
Jun 20161,8434,56645.352.69$95,844
May 20162,1134,77442.521.99$99,350
Apr 20167822,18936.561.99$32,948
Mar 20169833,20033.011.79$38,190
Feb 20161,2723,38426.472.06$40,653
Jan 20161,3183,76827.352.36$44,956
Dec 20151,6854,52132.362.00$63,575
Nov 20151,5783,85438.792.17$69,564
Oct 20159292,62443.552.43$46,825
Sep 20151,3813,61642.992.76$69,344
Aug 20151,0943,80640.162.87$54,868
Jul 20151,3654,07748.152.95$77,732
Jun 20151,2623,78556.152.88$81,773
May 20151,4464,20655.212.96$92,264
Apr 20151,2784,69049.822.71$76,364
Mar 20151,6385,30842.892.93$85,831
Feb 20151,3164,46544.662.98$72,061
Jan 20151,6964,47443.433.10$87,530
Dec 20141,5805,19154.693.59$105,053
Nov 20141,41512770.464.25$100,241
Oct 20141,37910278.303.90$108,374
Sep 20141,4354,91686.164.05$143,527
Aug 20141,5005,43789.394.04$156,024
Jul 20141,4894,53396.564.18$162,724
Jun 20141,2693,96698.164.74$143,352
May 20141,3744,24194.734.73$150,204
Apr 20141,1032,79695.944.81$119,268
Mar 20141,7884,20295.895.06$192,700
Feb 20141,3003,35597.406.19$147,394
Jan 20141,6814,44590.404.86$173,568
Dec 20131,4272,73691.824.35$142,941
Nov 20131,0934,47388.853.74$113,834
Oct 20131,1904,37797.423.78$132,472
Sep 20137512,334104.113.72$86,864
Aug 20136391,974104.253.52$73,569
Jul 20131,1513,063102.523.72$129,388
Jun 20131,1613,51594.403.93$123,424
May 20131,7024,40394.834.15$179,669
Apr 20131,6864,13793.964.28$176,134
Mar 20131,8104,95793.623.91$188,848
Feb 20131,5854,50791.233.42$160,013
Jan 20132,1556,14991.603.42$218,427
Dec 20122,5345,46786.773.42$238,573
Nov 20122,3596,37686.953.62$228,228
Oct 20121,6035,48389.383.40$161,917
Sep 20122,2085,12194.672.92$223,976
Aug 20121,9665,10692.662.91$197,019
Jul 20122,8595,92785.133.02$261,291
Jun 20122,2355,35279.822.52$191,880
May 20122,3745,93191.612.49$232,240
Apr 20121,5324,521101.652.00$164,755
Mar 20121,1624,688105.052.22$132,485
Feb 20123,1038,088101.102.57$334,501
Jan 20124,52410,03498.092.73$471,193
Dec 20113,8497,75596.873.24$397,977
Nov 20114,6966,27295.723.31$470,269
Oct 20113,5815,25084.983.65$323,468
Sep 20111,3603,70983.623.99$128,507
Aug 20115,06512,95483.404.15$476,171
Jul 20117,91116,00294.144.52$817,026
Jun 20113,5946,55192.904.64$364,278
May 20112,9894,68898.134.40$313,960
Apr 20111,1983,410105.964.33$141,717
Mar 20112,4858,59596.364.06$274,327
Feb 20111,5582,85685.644.18$145,365
Jan 20111,7094,22986.504.59$167,234
Dec 20101,6634,08385.734.35$160,321
Nov 20109192,30080.843.80$83,021
Oct 20103,3957,56478.103.51$291,691
Sep 20103,5716,84972.633.98$286,617
Aug 20102,3283,89773.684.42$188,749
Jul 20101,8303,11372.554.74$147,511
Jun 20102,3394,60070.364.91$187,160
May 20102,6643,91171.124.24$206,028
Apr 20102,6543,27781.694.12$230,315
Mar 20102,0092,74378.394.39$169,524
Feb 20104951,52473.585.44$44,716
Jan 20101,8361,97974.365.96$148,328
Dec 20098352,15871.445.48$71,486
Nov 20093311,19274.593.75$29,161
Oct 20094981,23172.544.11$41,185
Sep 20095111,31765.543.06$37,527
Aug 20094961,45267.423.22$38,114
Jul 20095011,46461.133.46$35,698
Jun 20097381,26666.163.90$53,757
May 20094951,44654.743.93$32,773
Apr 20098341,30646.773.59$43,691
Mar 20096601,19942.144.06$32,679
Feb 20091,1712,05332.814.63$47,932
Jan 20091,0251,53035.865.37$44,974
Dec 200834676137.105.98$17,385
Nov 200850710755.496.86$28,867
Oct 200852244175.246.92$42,328
Sep 2008516595101.767.88$57,195
Aug 20086791,449114.228.48$89,847
Jul 20081,3813,869131.0811.39$225,087
Jun 20081,2081,719131.3313.03$181,050
May 20081,2320123.1711.57$151,745
Apr 20082,1370110.3110.45$235,732
Mar 20082,4790101.909.66$252,610
Feb 20085092.538.77$463

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                1,164 bbl  × $106.41 =   $123,861
Casinghead gas     2,636 Mcf  × $  3.05 =     $8,029

────────────────────────────────────────────────────
Month total                                 $131,890

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/38904 is the state's own key, not one this site invented.