DUFFY

Operated by WINFIELD OPERATING COMPANY (P-5 931940) in the POST OAK, SW. (MARBLE FALLS) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 29162District 09Field 72591500OilCasinghead gasSaveExport
Value, all time
$830 k
Jun 1996 – May 2026
Value, last 12 filed months
$30 k
at the published price for each month
Months reported
360
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 10 leases and 12 wells, and the rule below applies to all of them.

Discovered
1969-02-28
as the register files it
Field class
Oil and gas
the register's own label
Between wells
no field rule filed
From a lease line
no field rule filed

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
OilDisposition12,194 bbl$643,163
Casinghead gasProduction45,647 Mcf$187,332
Total$830,495

1,379 Mcf of this lease's gas, across 7 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 33.4321, -98.2189. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.0 miles.

33.43212, -98.21889 · 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
6,348 ft
1 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.
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.

How deep they were drilled

The one well that filed a depth was drilled to 6,348 ft.

Completions filed
Jun 1996
1 of 1 wells

1 well

42-2373481216,348 ftJun 1996

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 (360)

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

360 months

May 20261770106.413.05$18,835
Apr 20260098.932.87$0
Mar 202602589.753.15$79
Feb 202602563.503.75$94
Jan 202602559.138.00$200
Dec 202502556.664.41$110
Nov 202502558.593.93$98
Oct 20251762559.383.30$10,534
Sep 202502562.743.08$77
Aug 202502063.933.01$60
Jul 20250066.743.32$0
Jun 202502566.483.13$78
May 202502560.553.23$81
Apr 202502562.363.54$89
Mar 20251502567.704.27$10,262
Feb 20250070.884.34$0
Jan 202502074.324.28$86
Dec 20240068.993.12$0
Nov 20240069.052.20$0
Oct 202401171.372.28$25
Sep 202401469.612.36$33
Aug 202401875.632.06$37
Jul 202402079.932.15$43
Jun 20240078.082.63$0
May 20241781578.812.20$14,061
Apr 202401084.451.66$17
Mar 20240080.301.55$0
Feb 20240076.091.78$0
Jan 20240073.023.30$0
Dec 202301071.262.61$26
Nov 20230077.892.81$0
Oct 20230085.443.09$0
Sep 20230089.042.74$0
Aug 20230080.522.67$0
Jul 20231673674.852.64$12,595
Jun 20230068.962.26$0
May 20230070.622.23$0
Apr 202302578.122.24$56
Mar 202302372.852.39$55
Feb 202302975.112.47$72
Jan 20231583376.533.39$12,204
Dec 202201576.415.73$86
Nov 202202985.005.65$164
Oct 202202187.185.86$123
Sep 202203384.888.16$269
Aug 202203794.529.13$338
Jul 202216835101.587.54$17,329
Jun 2022010115.097.98$80
May 2022048109.378.43$405
Apr 2022034104.226.84$232
Mar 2022037108.885.08$188
Feb 202203691.054.86$175
Jan 20221671581.844.54$13,735
Dec 202102771.323.90$105
Nov 202102277.435.24$115
Oct 202102679.795.71$149
Sep 202102769.865.35$144
Aug 202101166.024.22$46
Jul 2021162070.783.98$11,466
Jun 202103469.493.38$115
May 202101063.483.02$30
Apr 202101860.362.76$50
Mar 20211682561.302.72$10,366
Feb 20210057.805.55$0
Jan 202101550.412.81$42
Dec 202001944.642.68$51
Nov 202001138.772.71$30
Oct 20201663336.972.48$6,219
Sep 202009137.091.99$181
Aug 2020028439.982.39$677
Jul 20201645738.371.83$6,397
Jun 20201512234.901.69$5,307
May 2020010016.921.81$181
Apr 2020010314.751.80$186
Mar 202002730.341.86$50
Feb 20200049.881.98$0
Jan 20200057.252.09$0
Dec 20190059.012.30$0
Nov 20190055.302.75$0
Oct 20190553.472.42$12
Sep 201901855.052.66$48
Aug 2019542453.112.30$2,923
Jul 201902056.272.46$49
Jun 201902052.782.49$50
May 201902258.482.74$60
Apr 201901862.632.75$50
Mar 20190056.803.06$0
Feb 20190050.852.79$0
Jan 201907046.033.23$226
Dec 201806746.594.19$280
Nov 201805752.934.24$242
Oct 201806261.443.40$211
Sep 201803459.543.11$106
Aug 201806859.403.07$209
Jul 201805965.142.93$173
Jun 20181604660.183.08$9,770
May 201804065.382.90$116
Apr 201802963.842.90$84
Mar 201801361.222.79$36
Feb 201803261.782.77$89
Jan 201802262.874.01$88
Dec 201701857.272.92$53
Nov 201702055.423.12$62
Oct 201707549.292.98$224
Sep 2017014947.523.09$460
Aug 2017017645.373.00$529
Jul 201716317543.873.09$7,691
Jun 2017016642.493.09$512
May 2017015545.373.26$506
Apr 2017014747.933.21$472
Mar 2017012646.772.98$376
Feb 20171597650.452.95$8,246
Jan 201703249.413.42$109
Dec 20160048.763.72$0
Nov 20160042.492.64$0
Oct 20160046.193.09$0
Sep 20160741.553.10$22
Aug 201601341.442.92$38
Jul 2016011941.622.92$348
Jun 201604645.352.69$124
May 201609042.521.99$179
Apr 201609636.561.99$191
Mar 201616415533.011.79$5,692
Feb 2016014926.472.06$307
Jan 201607427.352.36$175
Dec 2015018332.362.00$366
Nov 2015016338.792.17$353
Oct 201515918543.552.43$7,373
Sep 2015016842.992.76$463
Aug 2015017140.162.87$491
Jul 2015014948.152.95$439
Jun 201507156.152.88$205
May 201501655.212.96$47
Apr 201504849.822.71$130
Mar 20151757742.892.93$7,732
Feb 2015018044.662.98$536
Jan 2015015543.433.10$481
Dec 2014018954.693.59$679
Nov 2014018770.464.25$795
Oct 2014019878.303.90$772
Sep 201417518886.164.05$15,839
Aug 2014020889.394.04$839
Jul 2014020296.564.18$844
Jun 2014016698.164.74$786
May 201401194.734.73$52
Apr 2014179895.944.81$17,212
Mar 2014010295.895.06$516
Feb 201405997.406.19$365
Jan 2014012090.404.86$583
Dec 2013014191.824.35$614
Nov 201317115388.853.74$15,765
Oct 2013014397.423.78$540
Sep 20130113104.113.72$420
Aug 20130119104.253.52$419
Jul 2013094102.523.72$349
Jun 20131591694.403.93$15,073
May 201301694.834.15$66
Apr 2013015593.964.28$664
Mar 2013013193.623.91$513
Feb 201309991.233.42$339
Jan 201301891.603.42$62
Dec 20121702786.773.42$14,843
Nov 2012011986.953.62$431
Oct 20120089.383.40$0
Sep 20120094.672.92$0
Aug 20121716392.662.91$16,028
Jul 2012016985.133.02$511
Jun 2012019179.822.52$481
May 2012013691.612.49$338
Apr 2012169186101.652.00$17,550
Mar 20120189105.052.22$420
Feb 20120152101.102.57$391
Jan 201206098.092.73$164
Dec 201106596.873.24$211
Nov 201116714695.723.31$16,469
Oct 2011012084.983.65$438
Sep 201106783.623.99$267
Aug 20110983.404.15$37
Jul 20110094.144.52$0
Jun 201115715292.904.64$15,291
May 2011018298.134.40$802
Apr 20110149105.964.33$646
Mar 201102796.364.06$110
Feb 201116021085.644.18$14,580
Jan 2011018586.504.59$849
Dec 2010018685.734.35$809
Nov 2010016280.843.80$615
Oct 2010018378.103.51$642
Sep 201016718572.633.98$12,865
Aug 2010019373.684.42$853
Jul 2010018672.554.74$881
Jun 201016618470.364.91$12,583
May 2010014071.124.24$593
Apr 2010016981.694.12$697
Mar 20101079178.394.39$8,787
Feb 2010010873.585.44$588
Jan 201006874.365.96$406
Dec 200907171.445.48$389
Nov 200917013074.593.75$13,168
Oct 2009012172.544.11$497
Sep 200904565.543.06$138
Aug 200902667.423.22$84
Jul 2009021561.133.46$745
Jun 200917121866.163.90$12,162
May 2009021454.743.93$840
Apr 2009020346.773.59$728
Mar 2009022042.144.06$893
Feb 200916717732.814.63$6,299
Jan 2009017735.865.37$951
Dec 2008019937.105.98$1,189
Nov 2008015055.496.86$1,029
Oct 2008170675.246.92$12,832
Sep 200806101.767.88$47
Aug 2008063114.228.48$534
Jul 2008041131.0811.39$467
Jun 20080215131.3313.03$2,802
May 2008170207123.1711.57$23,335
Apr 20080201110.3110.45$2,101
Mar 20080195101.909.66$1,884
Feb 2008015592.538.77$1,359
Jan 200814715690.388.21$14,566
Dec 2007016388.337.30$1,190
Nov 200708291.677.29$598
Oct 20071738282.856.92$14,901
Sep 200702475.846.24$150
Aug 2007022269.066.39$1,418
Jul 2007020670.906.39$1,316
Jun 20071717462.007.55$11,161
May 2007015958.747.85$1,248
Apr 2007020059.617.81$1,561
Mar 200706456.927.30$467
Feb 20070055.108.22$0
Jan 2007012750.306.73$854
Dec 20067022256.656.92$5,501
Nov 200615617354.207.62$9,773
Oct 2006021554.906.01$1,293
Sep 2006022760.085.04$1,143
Aug 2006022868.717.34$1,674
Jul 200615314469.376.34$11,527
Jun 2006017366.286.38$1,104
May 200604666.016.42$296
Apr 20060064.397.36$0
Mar 20060056.707.08$0
Feb 200602857.597.75$217
Jan 200603760.598.93$331
Dec 200513113554.9413.42$9,008
Nov 2005013854.6910.59$1,461
Oct 200503258.3413.80$441
Sep 20050061.4512.08$0
Aug 20057110661.519.80$5,406
Jul 2005019255.697.84$1,506
Jun 20057115952.337.38$4,889
May 2005025745.226.65$1,709
Apr 200511628949.207.36$7,834
Mar 2005026350.377.15$1,882
Feb 2005026845.226.31$1,692
Jan 200511232143.166.32$6,863
Dec 2004038239.866.75$2,579
Nov 2004027445.286.33$1,735
Oct 200415010849.706.52$8,159
Sep 2004021043.245.28$1,110
Aug 2004023442.375.55$1,299
Jul 200417922538.286.08$8,221
Jun 2004018036.106.43$1,158
May 2004012737.486.49$825
Apr 200412816734.475.86$5,391
Mar 2004011134.365.53$614
Feb 200405632.455.51$309
Jan 200407432.036.30$466
Dec 2003023930.266.30$1,506
Nov 200310924628.804.60$4,270
Oct 2003020428.174.76$971
Sep 200312910526.314.75$3,893
Aug 2003018829.765.13$964
Jul 200311525129.415.17$4,680
Jun 2003025228.565.98$1,508
May 2003026026.595.97$1,553
Apr 2003021126.675.41$1,141
Mar 200313915431.146.10$5,267
Feb 200309933.487.93$785
Jan 2003024230.315.58$1,351
Dec 200214021026.914.85$4,787
Nov 2002159024.664.14$3,921
Oct 20020026.464.23$0
Sep 20020027.443.64$0
Aug 200208925.963.16$282
Jul 2002010824.583.06$331
Jun 20024916523.733.34$1,714
May 200213818824.663.58$4,077
Apr 200205023.653.51$176
Mar 2002021222.003.10$658
Feb 2002014318.222.38$340
Jan 2002028817.172.38$684
Dec 200112621716.932.36$2,646
Nov 2001016818.072.41$404
Oct 2001035619.782.53$900
Sep 20019824624.262.25$2,931
Aug 2001027424.873.05$837
Jul 200114226123.933.20$4,233
Jun 2001037224.563.82$1,423
May 200115337725.524.31$5,528
Apr 2001026924.685.34$1,435
Mar 20011733524.545.38$2,218
Feb 2001033227.755.77$1,915
Jan 20015718827.478.40$3,145
Dec 200016317426.889.12$5,969
Nov 2000024632.215.66$1,392
Oct 2000019131.235.15$983
Sep 2000017431.875.19$902
Aug 20007617429.644.54$3,043
Jul 20007431928.534.09$3,416
Jun 20009633829.304.40$4,299
May 2000011027.263.68$405
Apr 2000032424.513.12$1,010
Mar 200015829128.422.86$5,323
Feb 2000011027.622.73$300
Jan 20006327125.272.48$2,264
Dec 1999032624.282.42$790
Nov 19996327023.192.43$2,118
Oct 1999449120.982.80$1,178
Sep 19997336021.752.62$2,531
Aug 199914226319.262.88$3,491
Jul 1999023417.892.37$555
Jun 19997414115.942.36$1,513
May 1999020415.792.32$473
Apr 199916536915.102.21$3,306
Mar 1999037112.471.84$682
Feb 199901239.981.82$224
Jan 199917632510.381.90$2,444
Dec 199802749.201.77$486
Nov 1998030310.892.19$662
Oct 1998036412.421.97$717
Sep 1998042012.592.08$875
Aug 199817229711.301.91$2,510
Jul 1998042911.742.24$960
Jun 1998031911.242.24$714
May 1998035312.622.21$779
Apr 199814626613.042.51$2,570
Mar 1998025312.802.31$584
Feb 19981615313.952.30$2,368
Jan 199805614.702.15$121
Dec 1997040416.322.41$974
Nov 199716933418.193.09$4,106
Oct 1997028719.253.15$904
Sep 1997016117.742.95$476
Aug 1997040317.862.55$1,030
Jul 1997048617.582.25$1,092
Jun 199716945017.242.26$3,929
May 1997026218.972.31$605
Apr 199711425917.882.08$2,578
Mar 199705618.951.94$109
Feb 199715029120.492.21$3,715
Jan 1997025323.483.54$896
Dec 19965916323.32$1,376
Nov 199613517021.97$2,966
Oct 1996022623.31$0
Sep 1996113522.22$22
Aug 1996018420.26$0
Jul 1996026919.55$0
Jun 1996023218.73$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                  177 bbl  × $106.41 =    $18,835
Casinghead gas         0 Mcf  × $  3.05 =         $0

────────────────────────────────────────────────────
Month total                                  $18,835

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. 09/O/29162 is the state's own key, not one this site invented.