SEALY FOUNDATION -I-

Operated by MILLWEE OIL, INC. (P-5 569339) in the MONAHANS (QUEEN SAND) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 21378District 08Field 62415747Hydrogen sulphide fieldOilCasinghead gasSaveExport
Value, all time
$425 k
Jan 1993 – May 2026
Value, last 12 filed months
$21 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 23 leases and 73 wells, and the rule below applies to all of them.

Discovered
1960-01-08
as the register files it
Field class
Oil
the register's own label
Between wells
1,200 ft
minimum
From a lease line
467 ft
minimum

A drilling unit in this field needs at least 40 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.

The Commission's schedule remark for this field reads: /QUEEN SAND/ FIELD 2-1-69

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
OilDisposition8,525 bbl$425,358
Casinghead gasProduction21 Mcf$0
Total$425,358

21 Mcf of this lease's gas, across 21 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 (1)

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 31.6468, -102.9427. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.0 miles.

31.64677, -102.94272 · 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 1 wells
With a plug date
0.0%
0 of 1 wells
Median depth
no depth filed
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.
1100.0%

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.

1 well

42-475301851

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 2026310106.413.05$3,299
Apr 202631098.932.87$3,067
Mar 202632089.753.15$2,872
Feb 202632063.503.75$2,032
Jan 20260059.138.00$0
Dec 202530056.664.41$1,700
Nov 202533058.593.93$1,933
Oct 20250059.383.30$0
Sep 202531062.743.08$1,945
Aug 202532063.933.01$2,046
Jul 202526066.743.32$1,735
Jun 20250066.483.13$0
May 202530060.553.23$1,817
Apr 202533062.363.54$2,058
Mar 20250067.704.27$0
Feb 202532070.884.34$2,268
Jan 202564074.324.28$4,756
Dec 20240068.993.12$0
Nov 20240069.052.20$0
Oct 202431071.372.28$2,212
Sep 202430069.612.36$2,088
Aug 20240075.632.06$0
Jul 202430079.932.15$2,398
Jun 202432078.082.63$2,499
May 202430078.812.20$2,364
Apr 20240084.451.66$0
Mar 20240080.301.55$0
Feb 202432076.091.78$2,435
Jan 20240073.023.30$0
Dec 202333071.262.61$2,352
Nov 202331077.892.81$2,415
Oct 202332085.443.09$2,734
Sep 202331089.042.74$2,760
Aug 20230080.522.67$0
Jul 202332074.852.64$2,395
Jun 202332068.962.26$2,207
May 202334070.622.23$2,401
Apr 202333078.122.24$2,578
Mar 202334072.852.39$2,477
Feb 20230075.112.47$0
Jan 20230076.533.39$0
Dec 202232076.415.73$2,445
Nov 20220085.005.65$0
Oct 202232087.185.86$2,790
Sep 202229084.888.16$2,462
Aug 20220094.529.13$0
Jul 2022330101.587.54$3,352
Jun 2022310115.097.98$3,568
May 2022310109.378.43$3,390
Apr 2022320104.226.84$3,335
Mar 2022310108.885.08$3,375
Feb 202232091.054.86$2,914
Jan 20220081.844.54$0
Dec 202130071.323.90$2,140
Nov 202133077.435.24$2,555
Oct 202132079.795.71$2,553
Sep 202131069.865.35$2,166
Aug 202132066.024.22$2,113
Jul 202130070.783.98$2,123
Jun 202132069.493.38$2,224
May 202131063.483.02$1,968
Apr 202132060.362.76$1,932
Mar 202134061.302.72$2,084
Feb 20210057.805.55$0
Jan 202132050.412.81$1,613
Dec 202031044.642.68$1,384
Nov 202033038.772.71$1,279
Oct 202032036.972.48$1,183
Sep 20200037.091.99$0
Aug 202033039.982.39$1,319
Jul 202032038.371.83$1,228
Jun 202033034.901.69$1,152
May 202031016.921.81$525
Apr 202030014.751.80$443
Mar 202031030.341.86$941
Feb 20200049.881.98$0
Jan 20200057.252.09$0
Dec 201931059.012.30$1,829
Nov 201931055.302.75$1,714
Oct 201932053.472.42$1,711
Sep 20190055.052.66$0
Aug 201931053.112.30$1,646
Jul 201931056.272.46$1,744
Jun 201931052.782.49$1,636
May 201932058.482.74$1,871
Apr 20190062.632.75$0
Mar 201932056.803.06$1,818
Feb 201931050.852.79$1,576
Jan 201931046.033.23$1,427
Dec 201831046.594.19$1,444
Nov 201831052.934.24$1,641
Oct 201831061.443.40$1,905
Sep 201831059.543.11$1,846
Aug 201831059.403.07$1,841
Jul 20180065.142.93$0
Jun 20180060.183.08$0
May 201831065.382.90$2,027
Apr 20180063.842.90$0
Mar 201861061.222.79$3,734
Feb 20180061.782.77$0
Jan 20180062.874.01$0
Dec 20170057.272.92$0
Nov 201733055.423.12$1,829
Oct 20170049.292.98$0
Sep 201733047.523.09$1,568
Aug 20170045.373.00$0
Jul 20170043.873.09$0
Jun 201733042.493.09$1,402
May 20170045.373.26$0
Apr 201734047.933.21$1,630
Mar 20170046.772.98$0
Feb 201732050.452.95$1,614
Jan 20170049.413.42$0
Dec 20160048.763.72$0
Nov 201631042.492.64$1,317
Oct 20160046.193.09$0
Sep 20160041.553.10$0
Aug 20160041.442.92$0
Jul 20160041.622.92$0
Jun 20160045.352.69$0
May 20160042.521.99$0
Apr 20160036.561.99$0
Mar 20160033.011.79$0
Feb 20160026.472.06$0
Jan 20160027.352.36$0
Dec 20150032.362.00$0
Nov 20150038.792.17$0
Oct 20150043.552.43$0
Sep 2015136042.992.76$5,847
Aug 20150040.162.87$0
Jul 20150048.152.95$0
Jun 20150056.152.88$0
May 20150055.212.96$0
Apr 20150049.822.71$0
Mar 20150042.892.93$0
Feb 20150044.662.98$0
Jan 20150043.433.10$0
Dec 20140054.693.59$0
Nov 20140070.464.25$0
Oct 20140078.303.90$0
Sep 20140086.164.05$0
Aug 20140089.394.04$0
Jul 2014167096.564.18$16,126
Jun 20140098.164.74$0
May 20140094.734.73$0
Apr 20140095.944.81$0
Mar 20140095.895.06$0
Feb 20140097.406.19$0
Jan 20140090.404.86$0
Dec 20130091.824.35$0
Nov 20130088.853.74$0
Oct 20130097.423.78$0
Sep 20131630104.113.72$16,970
Aug 201300104.253.52$0
Jul 201300102.523.72$0
Jun 20130094.403.93$0
May 20130094.834.15$0
Apr 20130093.964.28$0
Mar 20130093.623.91$0
Feb 20130091.233.42$0
Jan 20130091.603.42$0
Dec 2012134086.773.42$11,627
Nov 20120086.953.62$0
Oct 20120089.383.40$0
Sep 20120094.672.92$0
Aug 20120092.662.91$0
Jul 20120085.133.02$0
Jun 20120079.822.52$0
May 20120091.612.49$0
Apr 201200101.652.00$0
Mar 201200105.052.22$0
Feb 20121650101.102.57$16,682
Jan 20120098.092.73$0
Dec 20110096.873.24$0
Nov 20110095.723.31$0
Oct 20110084.983.65$0
Sep 20110083.623.99$0
Aug 20110083.404.15$0
Jul 20110094.144.52$0
Jun 20110092.904.64$0
May 20110098.134.40$0
Apr 20111500105.964.33$15,894
Mar 20110096.364.06$0
Feb 20110085.644.18$0
Jan 20110086.504.59$0
Dec 20100085.734.35$0
Nov 20100080.843.80$0
Oct 20100078.103.51$0
Sep 20100072.633.98$0
Aug 20100073.684.42$0
Jul 20100072.554.74$0
Jun 2010147070.364.91$10,343
May 20100071.124.24$0
Apr 20100081.694.12$0
Mar 20100078.394.39$0
Feb 20100073.585.44$0
Jan 20100074.365.96$0
Dec 20090071.445.48$0
Nov 20090074.593.75$0
Oct 20090072.544.11$0
Sep 20090065.543.06$0
Aug 2009148067.423.22$9,978
Jul 20090061.133.46$0
Jun 20090066.163.90$0
May 20090054.743.93$0
Apr 20090046.773.59$0
Mar 20090042.144.06$0
Feb 20090032.814.63$0
Jan 20090035.865.37$0
Dec 20080037.105.98$0
Nov 20080055.496.86$0
Oct 20080075.246.92$0
Sep 200800101.767.88$0
Aug 20081530114.228.48$17,476
Jul 200800131.0811.39$0
Jun 200800131.3313.03$0
May 200800123.1711.57$0
Apr 200800110.3110.45$0
Mar 200800101.909.66$0
Feb 20080092.538.77$0
Jan 20080090.388.21$0
Dec 20070088.337.30$0
Nov 2007152091.677.29$13,934
Oct 20070082.856.92$0
Sep 20070075.846.24$0
Aug 20070069.066.39$0
Jul 20070070.906.39$0
Jun 20070062.007.55$0
May 20070058.747.85$0
Apr 20070059.617.81$0
Mar 20070056.927.30$0
Feb 20070055.108.22$0
Jan 20070050.306.73$0
Dec 2006154056.656.92$8,724
Nov 20060054.207.62$0
Oct 20060054.906.01$0
Sep 20060060.085.04$0
Aug 20060068.717.34$0
Jul 20060069.376.34$0
Jun 20060066.286.38$0
May 20060066.016.42$0
Apr 2006150064.397.36$9,659
Mar 20060056.707.08$0
Feb 20060057.597.75$0
Jan 20060060.598.93$0
Dec 20050054.9413.42$0
Nov 20050054.6910.59$0
Oct 20050058.3413.80$0
Sep 2005160061.4512.08$9,832
Aug 20050061.519.80$0
Jul 20050055.697.84$0
Jun 20050052.337.38$0
May 20050045.226.65$0
Apr 20050049.207.36$0
Mar 2005143050.377.15$7,203
Feb 20050045.226.31$0
Jan 20050043.166.32$0
Dec 20040039.866.75$0
Nov 20040045.286.33$0
Oct 2004155049.706.52$7,704
Sep 20040043.245.28$0
Aug 20040042.375.55$0
Jul 20040038.286.08$0
Jun 20040036.106.43$0
May 2004141037.486.49$5,285
Apr 20040034.475.86$0
Mar 20040034.365.53$0
Feb 20040032.455.51$0
Jan 20040032.036.30$0
Dec 2003154030.266.30$4,660
Nov 20030028.804.60$0
Oct 20030028.174.76$0
Sep 20030026.314.75$0
Aug 2003147029.765.13$4,375
Jul 20030029.415.17$0
Jun 20030028.565.98$0
May 20030026.595.97$0
Apr 20030026.675.41$0
Mar 2003132031.146.10$4,110
Feb 20030033.487.93$0
Jan 20030030.315.58$0
Dec 20020026.914.85$0
Nov 2002152024.664.14$3,748
Oct 20020026.464.23$0
Sep 20020027.443.64$0
Aug 20020025.963.16$0
Jul 20020024.583.06$0
Jun 20020023.733.34$0
May 20020024.663.58$0
Apr 2002150023.653.51$3,548
Mar 20020022.003.10$0
Feb 20020018.222.38$0
Jan 20020017.172.38$0
Dec 20010016.932.36$0
Nov 20010018.072.41$0
Oct 20010019.782.53$0
Sep 2001153024.262.25$3,712
Aug 20010024.873.05$0
Jul 20010023.933.20$0
Jun 20010024.563.82$0
May 20010025.524.31$0
Apr 20010024.685.34$0
Mar 2001166024.545.38$4,074
Feb 20010027.755.77$0
Jan 20010027.478.40$0
Dec 20000026.889.12$0
Nov 20000032.215.66$0
Oct 20000031.235.15$0
Sep 2000139031.875.19$4,430
Aug 20000029.644.54$0
Jul 20000028.534.09$0
Jun 20000029.304.40$0
May 20000027.263.68$0
Apr 20000024.513.12$0
Mar 2000162028.422.86$4,604
Feb 20000027.622.73$0
Jan 20000025.272.48$0
Dec 19990024.282.42$0
Nov 19990023.192.43$0
Oct 19990020.982.80$0
Sep 19990021.752.62$0
Aug 1999167019.262.88$3,216
Jul 19990017.892.37$0
Jun 19990015.942.36$0
May 19990015.792.32$0
Apr 19990015.102.21$0
Mar 19990012.471.84$0
Feb 1999009.981.82$0
Jan 19990010.381.90$0
Dec 1998009.201.77$0
Nov 19980010.892.19$0
Oct 19980012.421.97$0
Sep 19980012.592.08$0
Aug 19980011.301.91$0
Jul 1998165011.742.24$1,937
Jun 19980011.242.24$0
May 19980012.622.21$0
Apr 19980013.042.51$0
Mar 1998168012.802.31$2,150
Feb 19980013.952.30$0
Jan 19980014.702.15$0
Dec 19970016.322.41$0
Nov 1997165018.193.09$3,001
Oct 19970019.253.15$0
Sep 19970017.742.95$0
Aug 19970017.862.55$0
Jul 19970017.582.25$0
Jun 19970017.242.26$0
May 19970018.972.31$0
Apr 19970017.882.08$0
Mar 19970018.951.94$0
Feb 19970020.492.21$0
Jan 1997168023.483.54$3,945
Dec 19960023.32$0
Nov 19960021.97$0
Oct 19960023.31$0
Sep 19960022.22$0
Aug 19960020.26$0
Jul 19960019.55$0
Jun 19960018.73$0
May 19960019.43$0
Apr 19960021.51$0
Mar 1996162019.38$3,140
Feb 19960016.98$0
Jan 19960017.07$0
Dec 19950017.19$0
Nov 19950016.00$0
Oct 19950015.43$0
Sep 1995172016.18$2,783
Aug 19950015.92$0
Jul 19950015.24$0
Jun 19950016.41$0
May 19950017.56$0
Apr 1995163017.73$2,890
Mar 19950016.44$0
Feb 19950016.58$0
Jan 19950015.92$0
Dec 19940015.03$0
Nov 19940015.90$0
Oct 19940015.58$0
Sep 1994169115.29$2,584
Aug 19940116.13$0
Jul 19940117.56$0
Jun 19940117.09$0
May 19940115.88$0
Apr 1994160114.14$2,262
Mar 19940112.46$0
Feb 19940112.50$0
Jan 1994170112.66$2,152
Dec 19930112.33$0
Nov 19930114.49$0
Oct 19930115.85$0
Sep 19930115.03$0
Aug 19930115.66$0
Jul 1993168115.46$2,597
Jun 19930116.79$0
May 19930117.68$0
Apr 19930118.05$0
Mar 19930118.14$0
Feb 1993167117.90$2,989
Jan 19930116.93$0

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                   31 bbl  × $106.41 =     $3,299
Casinghead gas         0 Mcf  × $  3.05 =         $0

────────────────────────────────────────────────────
Month total                                   $3,299

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/21378 is the state's own key, not one this site invented.