DUNCAN 41

Operated by TW PRODUCTION CO. (P-5 874762) in the GERALDINE, W. (DELAWARE 2435) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 22821District 08Field 34535333OilCasinghead gasSaveExport
Value, all time
$273 k
Jan 1993 – May 2026
Value, last 12 filed months
$0
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 7 leases and 17 wells, and the rule below applies to all of them.

Discovered
1967-03-08
as the register files it
Field class
Oil
the register's own label
Between wells
933 ft
minimum
From a lease line
330 ft
minimum

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

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
OilDisposition11,979 bbl$273,027
Casinghead gasProduction58 Mcf$25
Total$273,052

48 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 (2)

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 31.8991, -104.0891. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.2 miles.

31.89915, -104.08911 · 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%
2 of 2 wells
With a plug date
100.0%
2 of 2 wells
Median depth
2,570 ft
2 wells filed one
Completion to plug
42.0 years
median over 2 wells

What the state filed about each well

On the RRC proration schedule
2100.0%
A plug date is filed
2100.0%
BothOn the schedule and plugged. Neither fact cancels the other.
2100.0%
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

Between 2,560 and 2,580 ft, median 2,570 ft, over the 2 wells that filed a depth.

Completions filed
Apr 1973 – Jun 1973
2 of 2 wells
Plug dates filed
Apr 2015 – May 2015
2 of 2 wells

Last completion to plug: a median of 42.0 years across the 2 wells that filed both dates, with the middle half between 41.9 years and 42.0 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

2 wells

42-1093081722,560 ftJun 1973Apr 2015Yes
42-1093081832,580 ftApr 1973May 2015Yes

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 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 20250060.553.23$0
Apr 20250062.363.54$0
Mar 20250067.704.27$0
Feb 20250070.884.34$0
Jan 20250074.324.28$0
Dec 20240068.993.12$0
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 20240084.451.66$0
Mar 20240080.301.55$0
Feb 20240076.091.78$0
Jan 20240073.023.30$0
Dec 20230071.262.61$0
Nov 20230077.892.81$0
Oct 20230085.443.09$0
Sep 20230089.042.74$0
Aug 20230080.522.67$0
Jul 20230074.852.64$0
Jun 20230068.962.26$0
May 20230070.622.23$0
Apr 20230078.122.24$0
Mar 20230072.852.39$0
Feb 20230075.112.47$0
Jan 20230076.533.39$0
Dec 20220076.415.73$0
Nov 20220085.005.65$0
Oct 20220087.185.86$0
Sep 20220084.888.16$0
Aug 20220094.529.13$0
Jul 202200101.587.54$0
Jun 202200115.097.98$0
May 202200109.378.43$0
Apr 202200104.226.84$0
Mar 202200108.885.08$0
Feb 20220091.054.86$0
Jan 20220081.844.54$0
Dec 20210071.323.90$0
Nov 20210077.435.24$0
Oct 20210079.795.71$0
Sep 20210069.865.35$0
Aug 20210066.024.22$0
Jul 20210070.783.98$0
Jun 20210069.493.38$0
May 20210063.483.02$0
Apr 20210060.362.76$0
Mar 20210061.302.72$0
Feb 20210057.805.55$0
Jan 20210050.412.81$0
Dec 20200044.642.68$0
Nov 20200038.772.71$0
Oct 20200036.972.48$0
Sep 20200037.091.99$0
Aug 20200039.982.39$0
Jul 20200038.371.83$0
Jun 20200034.901.69$0
May 20200016.921.81$0
Apr 20200014.751.80$0
Mar 20200030.341.86$0
Feb 20200049.881.98$0
Jan 20200057.252.09$0
Dec 20190059.012.30$0
Nov 20190055.302.75$0
Oct 20190053.472.42$0
Sep 20190055.052.66$0
Aug 20190053.112.30$0
Jul 20190056.272.46$0
Jun 20190052.782.49$0
May 20190058.482.74$0
Apr 20190062.632.75$0
Mar 20190056.803.06$0
Feb 20190050.852.79$0
Jan 20190046.033.23$0
Dec 20180046.594.19$0
Nov 20180052.934.24$0
Oct 20180061.443.40$0
Sep 20180059.543.11$0
Aug 20180059.403.07$0
Jul 20180065.142.93$0
Jun 20180060.183.08$0
May 20180065.382.90$0
Apr 20180063.842.90$0
Mar 20180061.222.79$0
Feb 20180061.782.77$0
Jan 20180062.874.01$0
Dec 20170057.272.92$0
Nov 20170055.423.12$0
Oct 20170049.292.98$0
Sep 20170047.523.09$0
Aug 20170045.373.00$0
Jul 20170043.873.09$0
Jun 20170042.493.09$0
May 20170045.373.26$0
Apr 20170047.933.21$0
Mar 20170046.772.98$0
Feb 20170050.452.95$0
Jan 20170049.413.42$0
Dec 20160048.763.72$0
Nov 20160042.492.64$0
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 20150042.992.76$0
Aug 20150040.162.87$0
Jul 20150048.152.95$0
Jun 20150056.152.88$0
May 201551055.212.96$2,816
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 20140096.564.18$0
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 201300104.113.72$0
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 20120086.773.42$0
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 201200101.102.57$0
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 201100105.964.33$0
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 20100070.364.91$0
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 20090067.423.22$0
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 200800114.228.48$0
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 20070091.677.29$0
Oct 20070082.856.92$0
Sep 20070075.846.24$0
Aug 2007172069.066.39$11,878
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 200636056.656.92$2,039
Nov 200663054.207.62$3,415
Oct 20060054.906.01$0
Sep 200683060.085.04$4,987
Aug 20060068.717.34$0
Jul 20060069.376.34$0
Jun 20060066.286.38$0
May 200620066.016.42$1,320
Apr 200632064.397.36$2,060
Mar 200626056.707.08$1,474
Feb 200631057.597.75$1,785
Jan 200636060.598.93$2,181
Dec 200535054.9413.42$1,923
Nov 200536054.6910.59$1,969
Oct 200556058.3413.80$3,267
Sep 200530061.4512.08$1,844
Aug 200548061.519.80$2,952
Jul 200541055.697.84$2,283
Jun 200530052.337.38$1,570
May 200532045.226.65$1,447
Apr 20050049.207.36$0
Mar 200533050.377.15$1,662
Feb 200531045.226.31$1,402
Jan 200536043.166.32$1,554
Dec 200487039.866.75$3,468
Nov 20040045.286.33$0
Oct 200448049.706.52$2,386
Sep 200449043.245.28$2,119
Aug 200420042.375.55$847
Jul 200440038.286.08$1,531
Jun 200438036.106.43$1,372
May 200434037.486.49$1,274
Apr 200436034.475.86$1,241
Mar 200436034.365.53$1,237
Feb 200429032.455.51$941
Jan 200437032.036.30$1,185
Dec 200392030.266.30$2,784
Nov 20030028.804.60$0
Oct 200342028.174.76$1,183
Sep 200351026.314.75$1,342
Aug 200366029.765.13$1,964
Jul 200357029.415.17$1,676
Jun 200360028.565.98$1,714
May 200377026.595.97$2,047
Apr 200372026.675.41$1,920
Mar 20030031.146.10$0
Feb 20030033.487.93$0
Jan 200347030.315.58$1,425
Dec 2002102026.914.85$2,745
Nov 20020024.664.14$0
Oct 2002100026.464.23$2,646
Sep 20020027.443.64$0
Aug 200246025.963.16$1,194
Jul 200286024.583.06$2,114
Jun 20020023.733.34$0
May 2002100024.663.58$2,466
Apr 20020023.653.51$0
Mar 200256022.003.10$1,232
Feb 200275018.222.38$1,367
Jan 200253017.172.38$910
Dec 200137016.932.36$626
Nov 200161018.072.41$1,102
Oct 200144019.782.53$870
Sep 200157024.262.25$1,383
Aug 200152024.873.05$1,293
Jul 200153023.933.20$1,268
Jun 200153024.563.82$1,302
May 200158025.524.31$1,480
Apr 200163024.685.34$1,555
Mar 200160024.545.38$1,472
Feb 200173027.755.77$2,026
Jan 200166027.478.40$1,813
Dec 200056026.889.12$1,505
Nov 200057032.215.66$1,836
Oct 200060031.235.15$1,874
Sep 200064031.875.19$2,040
Aug 200062029.644.54$1,838
Jul 200072028.534.09$2,054
Jun 200053029.304.40$1,553
May 200050027.263.68$1,363
Apr 200062024.513.12$1,520
Mar 200061028.422.86$1,734
Feb 200097027.622.73$2,679
Jan 2000123025.272.48$3,108
Dec 19990024.282.42$0
Nov 1999121023.192.43$2,806
Oct 19990020.982.80$0
Sep 199947021.752.62$1,022
Aug 199997019.262.88$1,868
Jul 1999102017.892.37$1,825
Jun 19990015.942.36$0
May 1999156015.792.32$2,463
Apr 19990015.102.21$0
Mar 1999159012.471.84$1,983
Feb 199918709.981.82$1,866
Jan 19990010.381.90$0
Dec 1998009.201.77$0
Nov 1998173010.892.19$1,884
Oct 19980012.421.97$0
Sep 19980012.592.08$0
Aug 1998158011.301.91$1,785
Jul 19980011.742.24$0
Jun 1998163011.242.24$1,832
May 19980012.622.21$0
Apr 1998159013.042.51$2,073
Mar 19980012.802.31$0
Feb 1998145013.952.30$2,023
Jan 19980014.702.15$0
Dec 1997183116.322.41$2,989
Nov 19970018.193.09$0
Oct 1997179019.253.15$3,446
Sep 1997181117.742.95$3,214
Aug 19970117.862.55$3
Jul 19970117.582.25$2
Jun 1997175117.242.26$3,019
May 19970118.972.31$2
Apr 1997181117.882.08$3,238
Mar 19970118.951.94$2
Feb 1997122120.492.21$2,502
Jan 1997182123.483.54$4,277
Dec 19960123.32$0
Nov 1996181121.97$3,977
Oct 19960123.31$0
Sep 1996142122.22$3,155
Aug 1996158120.26$3,201
Jul 19960119.55$0
Jun 1996179118.73$3,353
May 19960119.43$0
Apr 1996182121.51$3,915
Mar 19960119.38$0
Feb 1996251116.98$4,262
Jan 19960117.07$0
Dec 19950117.19$0
Nov 199599116.00$1,584
Oct 1995195115.43$3,009
Sep 19950116.18$0
Aug 1995265115.92$4,219
Jul 19950115.24$0
Jun 1995262116.41$4,299
May 19950117.56$0
Apr 19950117.73$0
Mar 1995228116.44$3,748
Feb 19950116.58$0
Jan 1995220115.92$3,502
Dec 19940115.03$0
Nov 1994266115.90$4,229
Oct 19940115.58$0
Sep 1994265115.29$4,052
Aug 19940116.13$0
Jul 19940117.56$0
Jun 1994155117.09$2,649
May 19940115.88$0
Apr 1994202114.14$2,856
Mar 1994188112.46$2,342
Feb 19940112.50$0
Jan 1994201112.66$2,545
Dec 19930112.33$0
Nov 1993215114.49$3,115
Oct 19930115.85$0
Sep 1993224115.03$3,367
Aug 19930115.66$0
Jul 1993226115.46$3,494
Jun 19930116.79$0
May 1993231117.68$4,084
Apr 19930118.05$0
Mar 1993238118.14$4,317
Feb 19930117.90$0
Jan 1993248116.93$4,199

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 2015 — as filed, then multipliedworked
Oil                   51 bbl  × $ 55.21 =     $2,816
Casinghead gas         0 Mcf  × $  2.96 =         $0

────────────────────────────────────────────────────
Month total                                   $2,816

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/22821 is the state's own key, not one this site invented.