MILLAR, L. H.,ETAL "39"

Operated by OLSEN ENERGY INC. (P-5 621750) in the WENTZ (CLEAR FORK) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 40048District 08Field 96373400Hydrogen sulphide fieldOilCasinghead gasSaveExport
Value, all time
$26.5 M
Jun 2010 – May 2026
Value, last 12 filed months
$1.1 M
at the published price for each month
Months reported
192
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 25 leases and 146 wells, and the rule below applies to all of them.

Discovered
1953-02-13
as the register files it
Field class
Oil
the register's own label
Between wells
660 ft
minimum
From a lease line
330 ft
minimum

A drilling unit in this field needs at least 20 acres.

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.

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
OilDisposition375,530 bbl$25,892,252
Casinghead gasProduction167,896 Mcf$558,924
Total$26,451,176

Wells on this lease (13)

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 30.9892, -102.3850. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.9 miles.

30.98699, -102.38461 · 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
38.5%
5 of 13 wells
With a plug date
38.5%
5 of 13 wells
Median depth
3,204 ft
13 wells filed one
Completion to plug
4.7 years
median over 5 wells

What the state filed about each well

On the RRC proration schedule
538.5%
A plug date is filed
538.5%
BothOn the schedule and plugged. Neither fact cancels the other.
538.5%
NeitherNo plug date, and not on the schedule.
861.5%

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, 13 of 13 wells. Median 3,204 ft, with the middle half between 3,200 and 4,510 ft; the shallowest is 3,025 ft and the deepest 4,650 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, 13 of 13 wells, Jul 2008 – Jul 2025. 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 2008 – Jul 2025
13 of 13 wells
Plug dates filed
Feb 2012 – Sep 2022
5 of 13 wells; 8 filed none

Last completion to plug: a median of 4.7 years across the 5 wells that filed both dates, with the middle half between 3.4 years and 6.6 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

13 wells

42-37136270213,900 ftJul 2025
42-37136600274,510 ftNov 2014
42-37139117453,204 ftNov 2013
42-37136601294,650 ftNov 2013Apr 2017Yes
42-37139046443,158 ftAug 2013Sep 2022Yes
42-37139048433,200 ftJul 2013
42-3713001174,460 ftAug 2012
42-37138909423,200 ftJun 2012
42-37137218334,600 ftJun 2011Feb 2012Yes
42-37138792403,200 ftMay 2011
42-37138636383,110 ftJun 2010Feb 2015Yes
42-3713003484,570 ftJan 2009Aug 2015Yes
42-37136803313,025 ftJul 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 (192)

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

192 months

May 20261,1890106.413.05$126,521
Apr 20261,150098.932.87$113,770
Mar 20261,643089.753.15$147,459
Feb 20261,19716263.503.75$76,617
Jan 20261,3252859.138.00$78,571
Dec 202599024056.664.41$57,153
Nov 20251,198058.593.93$70,191
Oct 2025513059.383.30$30,462
Sep 20251,033162.743.08$64,814
Aug 20251,38135563.933.01$89,358
Jul 20251,39514466.743.32$93,580
Jun 20252,11558266.483.13$142,426
May 20251,20046160.553.23$74,150
Apr 20251,90445162.363.54$120,331
Mar 20252,14828667.704.27$146,640
Feb 20251,03642470.884.34$75,272
Jan 20251,41231174.324.28$106,271
Dec 20241,62661768.993.12$114,104
Nov 20241,59118869.052.20$110,272
Oct 20241,76834571.372.28$126,969
Sep 20241,9451369.612.36$135,422
Aug 20241,965775.632.06$148,627
Jul 20241,949279.932.15$155,788
Jun 20241,5774678.082.63$123,253
May 20242,05352778.812.20$162,956
Apr 20242,05283384.451.66$174,674
Mar 20242,37781680.301.55$192,134
Feb 20242,59571176.091.78$198,722
Jan 20241,63739873.023.30$120,846
Dec 20231,56758671.262.61$113,194
Nov 20232,27065777.892.81$178,655
Oct 20231,60275885.443.09$139,215
Sep 202369249289.042.74$62,961
Aug 20231,81054580.522.67$147,198
Jul 20231,68162174.852.64$127,463
Jun 20232,08945568.962.26$145,085
May 20231,90972770.622.23$136,433
Apr 20231,56199978.122.24$124,181
Mar 20232,2761,01672.852.39$168,238
Feb 20231,71464275.112.47$130,322
Jan 20231,79359376.533.39$139,227
Dec 20222,31475576.415.73$181,138
Nov 20221,42190885.005.65$125,912
Oct 20221,58695987.185.86$143,891
Sep 20222,13248684.888.16$184,932
Aug 202234834294.529.13$36,014
Jul 20222,239931101.587.54$234,459
Jun 20221,922934115.097.98$228,654
May 20221,728916109.378.43$196,716
Apr 20221,908711104.226.84$203,713
Mar 20221,442809108.885.08$161,112
Feb 20221,42566591.054.86$132,977
Jan 20221,30567181.844.54$109,846
Dec 20211,30682871.323.90$96,372
Nov 20212,19191477.435.24$174,436
Oct 20211,61845879.795.71$131,717
Sep 20211,25174869.865.35$91,397
Aug 20211,76286866.024.22$119,991
Jul 20212,15786070.783.98$156,097
Jun 20211,79062069.493.38$126,483
May 20212,11475463.483.02$136,472
Apr 20211,8251,04560.362.76$113,040
Mar 20212,1021,01561.302.72$131,610
Feb 20211,45464057.805.55$87,592
Jan 20211,04857750.412.81$54,451
Dec 20201,6461,03844.642.68$76,255
Nov 20201,98676338.772.71$79,062
Oct 20201,8011,03436.972.48$69,146
Sep 20202,1381,04037.091.99$81,369
Aug 20201,9361,15239.982.39$80,149
Jul 20202,4531,30738.371.83$96,507
Jun 20202,4361,20734.901.69$87,057
May 202071023016.921.81$12,431
Apr 202036927414.751.80$5,937
Mar 20202,2391,48630.341.86$70,690
Feb 20201,5731,14149.881.98$80,721
Jan 20202,0801,39557.252.09$122,002
Dec 20192,0131,38859.012.30$121,986
Nov 20192,1751,56655.302.75$124,585
Oct 20192,1671,64553.472.42$119,848
Sep 20191,8521,64855.052.66$106,332
Aug 20192,32479053.112.30$125,248
Jul 20191,8371,42156.272.46$106,864
Jun 20192,0601,50252.782.49$112,469
May 20192,2011,60958.482.74$133,124
Apr 20192,1321,58662.632.75$137,890
Mar 20192,1781,74956.803.06$129,066
Feb 20192,2891,63950.852.79$120,972
Jan 20192,1201,15246.033.23$101,302
Dec 20182,3831,45846.594.19$117,126
Nov 20181,9091,27552.934.24$106,446
Oct 20181,5381,30361.443.40$98,922
Sep 20182,1151,48459.543.11$130,539
Aug 20182,4351,60459.403.07$149,558
Jul 20182,4201,51865.142.93$162,089
Jun 20181,7691,24960.183.08$110,301
May 20182,2401,62565.382.90$151,165
Apr 20181,9831,46463.842.90$130,841
Mar 20181,9271,64461.222.79$122,553
Feb 20181,8541,52461.782.77$118,756
Jan 20181,6631,51062.874.01$110,607
Dec 20171,9881,47257.272.92$118,153
Nov 20171,8381,57455.423.12$106,770
Oct 20172,3111,53349.292.98$118,483
Sep 20171,8361,69247.523.09$92,470
Aug 20172,0901,59745.373.00$99,621
Jul 20172,3491,55243.873.09$107,842
Jun 20172,1871,52942.493.09$97,646
May 20171,53299745.373.26$72,760
Apr 20172,0281,20647.933.21$101,075
Mar 20172,5131,35246.772.98$121,567
Feb 20172,4921,07250.452.95$128,887
Jan 20172,0391,18649.413.42$104,802
Dec 20161,9871,48348.763.72$102,407
Nov 20162,4991,68642.492.64$110,641
Oct 20162,0601,27946.193.09$99,104
Sep 20162,2621,31941.553.10$98,076
Aug 20162,2391,41541.442.92$96,922
Jul 20162,6751,28541.622.92$115,091
Jun 20162,3661,48045.352.69$111,273
May 20162,6941,72142.521.99$117,975
Apr 20162,8391,64436.561.99$107,067
Mar 20162,4753,46933.011.79$87,923
Feb 20162,4991,60426.472.06$69,459
Jan 20162,85356227.352.36$79,358
Dec 20152,17257532.362.00$71,437
Nov 20152,48252838.792.17$97,421
Oct 20152,25858043.552.43$99,743
Sep 20152,37037242.992.76$102,912
Aug 20152,23954740.162.87$91,489
Jul 20152,26563048.152.95$110,915
Jun 20152,29963056.152.88$130,905
May 20152,31553655.212.96$129,395
Apr 20152,57872049.822.71$130,385
Mar 20152,23968142.892.93$98,029
Feb 20152,13064244.662.98$97,037
Jan 20152,17266843.433.10$96,401
Dec 20142,36770954.693.59$131,998
Nov 20142,20784870.464.25$159,111
Oct 20142,20062178.303.90$174,683
Sep 20142,20358286.164.05$192,165
Aug 20142,78281089.394.04$251,951
Jul 20142,60777396.564.18$254,963
Jun 20142,40681098.164.74$240,010
May 20143,05297094.734.73$293,701
Apr 20142,84592495.944.81$277,393
Mar 20143,4981,15195.895.06$341,244
Feb 20141,58071497.406.19$158,313
Jan 20143,2951,12790.404.86$303,346
Dec 20133,4421,29291.824.35$321,670
Nov 20132,07488388.853.74$187,576
Oct 20133,7481,47097.423.78$370,686
Sep 20133,3141,330104.113.72$349,965
Aug 20133,5271,720104.253.52$373,749
Jul 20132,3251,043102.523.72$242,237
Jun 20132,0871,70494.403.93$203,715
May 20132,7202,22094.834.15$267,149
Apr 20132,44774693.964.28$233,115
Mar 20133,0591,40793.623.91$291,889
Feb 20133,19678891.233.42$294,266
Jan 20132,8521,32791.603.42$265,781
Dec 20123,3591,16986.773.42$295,459
Nov 20122,29356186.953.62$201,410
Oct 20121,58060389.383.40$143,270
Sep 20122,08849094.672.92$199,101
Aug 20122,22361392.662.91$207,766
Jul 20122,07763185.133.02$178,721
Jun 20121,73776779.822.52$140,579
May 20121,71679891.612.49$159,188
Apr 20121,996716101.652.00$204,323
Mar 20122,130342105.052.22$224,516
Feb 2012676116101.102.57$68,642
Jan 201284522698.092.73$83,504
Dec 20111,84025996.873.24$179,080
Nov 2011981095.723.31$93,901
Oct 2011384084.983.65$32,632
Sep 2011806083.623.99$67,398
Aug 2011651083.404.15$54,293
Jul 2011810094.144.52$76,253
Jun 2011879092.904.64$81,659
May 20111,20036498.134.40$119,359
Apr 20111,190456105.964.33$128,068
Mar 20111,21952696.364.06$119,597
Feb 20111,22158785.644.18$107,020
Jan 20111,66488286.504.59$147,983
Dec 20101,88482885.734.35$165,115
Nov 20101,8621,13180.843.80$154,817
Oct 20102,1431,17778.103.51$171,498
Sep 20102,9062,02272.633.98$219,109
Aug 20102,01035373.684.42$149,657
Jul 20102,5521,16972.554.74$190,685
Jun 201033845070.364.91$25,991

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                1,189 bbl  × $106.41 =   $126,521
Casinghead gas         0 Mcf  × $  3.05 =         $0

────────────────────────────────────────────────────
Month total                                 $126,521

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/40048 is the state's own key, not one this site invented.