DUNCAN

Operated by 6A PRODUCTION (P-5 953900) in the PANHANDLE GRAY COUNTY FIELD field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 5171District 10Field 68873001NGPA filingOilCasinghead gasSaveExport
Value, all time
$897 k
Jan 1993 – May 2026
Value, last 12 filed months
$11 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 837 leases and 6,360 wells, and the rule below applies to all of them.

Discovered
1921-12-31
as the register files it
Field class
Oil
the register's own label
Between wells
467 ft
minimum
From a lease line
330 ft
minimum

A drilling unit in this field needs at least 20 acres. The field rule took effect on 1989-05-01.

The Commission's schedule remark for this field reads: UNTIL THE FLUID MIGRATION FROM SUCH STRATA IS ELIMINATED.

Severance-tax incentive filings

Applications the operator filed to have this lease's gas taxed at a reduced state rate. A filing is an application, and this page never calls one a reduction that was granted.

ProgrammeFilingsWith an approval dateDatedDocket
NGPA3none

This says nothing about a royalty. A severance tax is charged to the operator. Whether a reduced rate reaches a royalty owner depends on the wording of the lease instrument, which is a private contract this site does not hold.

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
OilDisposition5,275 bbl$184,653
Casinghead gasProduction210,656 Mcf$712,365
Total$897,018

43,735 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 (3)

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 35.4761, -101.0233. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.2 miles.

35.47653, -101.02302 · 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
33.3%
1 of 3 wells
With a plug date
33.3%
1 of 3 wells
Median depth
3,570 ft
3 wells filed one
Completion to plug
28.4 years
median over 1 well

What the state filed about each well

On the RRC proration schedule
133.3%
A plug date is filed
133.3%
BothOn the schedule and plugged. Neither fact cancels the other.
133.3%
NeitherNo plug date, and not on the schedule.
266.7%

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 3,570 and 3,576 ft, median 3,570 ft, over the 3 wells that filed a depth.

Completions filed
Jul 1982 – Sep 1983
3 of 3 wells
Plug dates filed
Apr 2011
1 of 3 wells; 2 filed none

Last completion to plug: a median of 28.4 years across the 1 well that filed both dates, with the middle half between 28.4 years and 28.4 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

3 wells

42-1793143433,570 ftSep 1983
42-1793130023,576 ftNov 1982Apr 2011Yes
42-1793119413,570 ftJul 1982

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 20260297106.413.05$905
Apr 2026028498.932.87$815
Mar 2026028589.753.15$898
Feb 2026023963.503.75$896
Jan 2026022859.138.00$1,824
Dec 2025027956.664.41$1,231
Nov 2025025158.593.93$986
Oct 2025028859.383.30$952
Sep 2025021462.743.08$658
Aug 2025023963.933.01$721
Jul 2025025366.743.32$839
Jun 2025024766.483.13$773
May 2025025460.553.23$821
Apr 2025021962.363.54$776
Mar 2025019667.704.27$837
Feb 2025018770.884.34$812
Jan 2025016774.324.28$715
Dec 2024019768.993.12$615
Nov 2024027669.052.20$607
Oct 2024019871.372.28$452
Sep 2024016869.612.36$397
Aug 202416232075.632.06$12,912
Jul 2024024279.932.15$519
Jun 2024029178.082.63$766
May 2024030878.812.20$677
Apr 2024031484.451.66$521
Mar 2024031680.301.55$488
Feb 2024027276.091.78$485
Jan 2024026973.023.30$887
Dec 2023028871.262.61$752
Nov 2023029077.892.81$814
Oct 2023030585.443.09$942
Sep 2023030889.042.74$842
Aug 2023034780.522.67$927
Jul 2023035874.852.64$946
Jun 2023031168.962.26$702
May 2023033170.622.23$737
Apr 2023029478.122.24$658
Mar 2023029772.852.39$711
Feb 2023026875.112.47$661
Jan 2023033176.533.39$1,121
Dec 2022024776.415.73$1,415
Nov 2022029485.005.65$1,660
Oct 2022015887.185.86$926
Sep 20220984.888.16$73
Aug 2022027494.529.13$2,501
Jul 20220107101.587.54$807
Jun 2022163296115.097.98$21,121
May 20220335109.378.43$2,825
Apr 2022049104.226.84$335
Mar 202200108.885.08$0
Feb 20220091.054.86$0
Jan 20220081.844.54$0
Dec 2021014271.323.90$554
Nov 2021014277.435.24$744
Oct 2021028379.795.71$1,617
Sep 2021028169.865.35$1,504
Aug 2021029166.024.22$1,228
Jul 2021029770.783.98$1,183
Jun 2021028369.493.38$957
May 2021026163.483.02$788
Apr 202105060.362.76$138
Mar 2021013461.302.72$364
Feb 2021019257.805.55$1,065
Jan 2021029550.412.81$829
Dec 2020019844.642.68$530
Nov 20200038.772.71$0
Oct 2020020036.972.48$496
Sep 2020023837.091.99$474
Aug 2020032239.982.39$768
Jul 2020032338.371.83$590
Jun 2020031634.901.69$534
May 202013630616.921.81$2,856
Apr 2020029214.751.80$527
Mar 2020030630.341.86$568
Feb 2020027249.881.98$539
Jan 2020031457.252.09$658
Dec 2019034359.012.30$790
Nov 2019020555.302.75$564
Oct 2019032553.472.42$786
Sep 2019034155.052.66$906
Aug 2019034153.112.30$786
Jul 2019032656.272.46$802
Jun 2019033452.782.49$832
May 2019033358.482.74$913
Apr 2019029162.632.75$800
Mar 2019030656.803.06$937
Feb 201910127250.852.79$5,895
Jan 2019031446.033.23$1,014
Dec 2018030146.594.19$1,260
Nov 2018027452.934.24$1,161
Oct 2018030261.443.40$1,026
Sep 2018030759.543.11$954
Aug 2018031959.403.07$978
Jul 2018033165.142.93$970
Jun 2018021960.183.08$674
May 2018035265.382.90$1,021
Apr 2018030963.842.90$896
Mar 2018033961.222.79$945
Feb 20180061.782.77$0
Jan 2018027262.874.01$1,091
Dec 2017027957.272.92$815
Nov 2017033455.423.12$1,042
Oct 2017033549.292.98$1,000
Sep 2017023747.523.09$732
Aug 2017032345.373.00$970
Jul 2017033943.873.09$1,047
Jun 201711533442.493.09$5,918
May 2017032945.373.26$1,074
Apr 2017036447.933.21$1,169
Mar 2017030846.772.98$919
Feb 2017030350.452.95$895
Jan 2017026349.413.42$899
Dec 201609848.763.72$365
Nov 2016010042.492.64$264
Oct 2016010946.193.09$337
Sep 2016033341.553.10$1,033
Aug 2016037141.442.92$1,085
Jul 2016038041.622.92$1,111
Jun 2016031945.352.69$857
May 2016039842.521.99$792
Apr 20168834736.561.99$3,908
Mar 2016039533.011.79$709
Feb 2016035726.472.06$737
Jan 2016034927.352.36$825
Dec 2015035732.362.00$715
Nov 2015031738.792.17$687
Oct 2015035243.552.43$854
Sep 2015035242.992.76$971
Aug 2015037440.162.87$1,074
Jul 2015036948.152.95$1,087
Jun 2015034156.152.88$983
May 2015036655.212.96$1,082
Apr 2015033949.822.71$918
Mar 2015033242.892.93$974
Feb 2015030244.662.98$899
Jan 2015032843.433.10$1,017
Dec 2014033554.693.59$1,203
Nov 201410030270.464.25$8,330
Oct 2014035578.303.90$1,385
Sep 2014032886.164.05$1,327
Aug 2014029789.394.04$1,198
Jul 2014031696.564.18$1,321
Jun 2014031098.164.74$1,468
May 2014036194.734.73$1,706
Apr 2014032895.944.81$1,577
Mar 2014031295.895.06$1,578
Feb 2014024997.406.19$1,542
Jan 2014031290.404.86$1,517
Dec 2013033591.824.35$1,459
Nov 2013033088.853.74$1,234
Oct 2013033797.423.78$1,274
Sep 20130316104.113.72$1,175
Aug 2013121329104.253.52$13,773
Jul 20130339102.523.72$1,260
Jun 2013031594.403.93$1,239
May 2013028694.834.15$1,187
Apr 2013028693.964.28$1,225
Mar 2013032393.623.91$1,264
Feb 2013030591.233.42$1,043
Jan 2013034991.603.42$1,194
Dec 2012035686.773.42$1,218
Nov 2012034486.953.62$1,247
Oct 2012034989.383.40$1,186
Sep 2012019194.672.92$557
Aug 2012034492.662.91$1,000
Jul 2012033685.133.02$1,015
Jun 2012033579.822.52$844
May 2012029191.612.49$724
Apr 20120368101.652.00$735
Mar 20120400105.052.22$889
Feb 20120402101.102.57$1,033
Jan 2012040398.092.73$1,102
Dec 2011016896.873.24$544
Nov 2011039495.723.31$1,305
Oct 2011044184.983.65$1,609
Sep 2011043683.623.99$1,738
Aug 201113043783.404.15$12,655
Jul 2011030594.144.52$1,378
Jun 2011039392.904.64$1,823
May 2011040198.134.40$1,766
Apr 20110369105.964.33$1,599
Mar 2011043496.364.06$1,761
Feb 2011035185.644.18$1,467
Jan 2011045586.504.59$2,088
Dec 2010043785.734.35$1,900
Nov 2010041880.843.80$1,586
Oct 201017943878.103.51$15,517
Sep 2010039972.633.98$1,588
Aug 2010034273.684.42$1,511
Jul 2010035372.554.74$1,672
Jun 2010040570.364.91$1,989
May 2010042471.124.24$1,796
Apr 2010043781.694.12$1,802
Mar 2010020478.394.39$895
Feb 2010034173.585.44$1,856
Jan 2010034474.365.96$2,052
Dec 2009029571.445.48$1,618
Nov 2009046474.593.75$1,741
Oct 2009022372.544.11$917
Sep 2009031765.543.06$972
Aug 2009045767.423.22$1,471
Jul 200917144461.133.46$11,991
Jun 2009044666.163.90$1,737
May 2009045454.743.93$1,782
Apr 2009043946.773.59$1,575
Mar 2009044742.144.06$1,814
Feb 2009042132.814.63$1,950
Jan 2009045235.865.37$2,428
Dec 2008044837.105.98$2,678
Nov 2008045455.496.86$3,115
Oct 2008047275.246.92$3,267
Sep 20080489101.767.88$3,852
Aug 20080513114.228.48$4,352
Jul 20080546131.0811.39$6,219
Jun 20080572131.3313.03$7,455
May 20080574123.1711.57$6,644
Apr 20080584110.3110.45$6,106
Mar 20080599101.909.66$5,789
Feb 2008042292.538.77$3,701
Jan 2008057790.388.21$4,735
Dec 2007056188.337.30$4,096
Nov 2007055191.677.29$4,018
Oct 2007055482.856.92$3,835
Sep 2007055875.846.24$3,484
Aug 2007054969.066.39$3,507
Jul 2007053270.906.39$3,398
Jun 2007051962.007.55$3,918
May 2007053858.747.85$4,221
Apr 20070059.617.81$0
Mar 2007057856.927.30$4,221
Feb 2007049955.108.22$4,100
Jan 2007056250.306.73$3,780
Dec 2006055856.656.92$3,860
Nov 2006057754.207.62$4,395
Oct 2006056154.906.01$3,374
Sep 200615153460.085.04$11,762
Aug 2006056868.717.34$4,169
Jul 2006053569.376.34$3,393
Jun 2006051366.286.38$3,275
May 2006050666.016.42$3,251
Apr 2006056364.397.36$4,144
Mar 2006048256.707.08$3,414
Feb 2006051857.597.75$4,015
Jan 2006056860.598.93$5,074
Dec 2005057954.9413.42$7,768
Nov 2005053154.6910.59$5,622
Oct 2005056258.3413.80$7,753
Sep 2005058761.4512.08$7,090
Aug 2005062461.519.80$6,113
Jul 2005061655.697.84$4,832
Jun 2005059852.337.38$4,414
May 2005061145.226.65$4,064
Apr 200516459049.207.36$12,411
Mar 2005056250.377.15$4,021
Feb 2005054845.226.31$3,459
Jan 2005055143.166.32$3,484
Dec 2004055739.866.75$3,760
Nov 2004052845.286.33$3,342
Oct 2004063949.706.52$4,163
Sep 2004063343.245.28$3,345
Aug 2004064642.375.55$3,586
Jul 2004065838.286.08$4,003
Jun 2004064336.106.43$4,136
May 2004067837.486.49$4,403
Apr 2004056834.475.86$3,328
Mar 2004060234.365.53$3,329
Feb 2004061332.455.51$3,377
Jan 2004065532.036.30$4,126
Dec 2003065930.266.30$4,153
Nov 200317164328.804.60$7,879
Oct 2003073628.174.76$3,503
Sep 2003069226.314.75$3,287
Aug 2003073829.765.13$3,786
Jul 2003075329.415.17$3,894
Jun 2003070528.565.98$4,218
May 2003069026.595.97$4,121
Apr 2003069026.675.41$3,731
Mar 2003078631.146.10$4,791
Feb 2003069133.487.93$5,477
Jan 2003071330.315.58$3,980
Dec 2002075026.914.85$3,640
Nov 2002075424.664.14$3,119
Oct 2002078826.464.23$3,333
Sep 2002078827.443.64$2,865
Aug 2002081125.963.16$2,566
Jul 2002086924.583.06$2,661
Jun 200216184523.733.34$6,641
May 2002087924.663.58$3,150
Apr 2002079723.653.51$2,799
Mar 2002080722.003.10$2,504
Feb 2002072818.222.38$1,730
Jan 2002076717.172.38$1,822
Dec 2001082616.932.36$1,953
Nov 200118082318.072.41$5,232
Oct 2001091719.782.53$2,319
Sep 2001098324.262.25$2,213
Aug 200101,30624.873.05$3,987
Jul 200101,12923.933.20$3,610
Jun 2001098724.563.82$3,774
May 200101,03825.524.31$4,471
Apr 2001095924.685.34$5,117
Mar 200117296724.545.38$9,420
Feb 2001081427.755.77$4,694
Jan 2001096927.478.40$8,138
Dec 200001,04426.889.12$9,524
Nov 200001,07332.215.66$6,071
Oct 2000021031.235.15$1,081
Sep 20000731.875.19$36
Aug 200017860529.644.54$8,023
Jul 2000024328.534.09$994
Jun 2000067829.304.40$2,981
May 2000080627.263.68$2,966
Apr 2000081224.513.12$2,530
Mar 2000086928.422.86$2,485
Feb 2000065127.622.73$1,775
Jan 200017198825.272.48$6,772
Dec 1999086024.282.42$2,084
Nov 199901,06123.192.43$2,582
Oct 1999093720.982.80$2,627
Sep 1999063821.752.62$1,671
Aug 1999052519.262.88$1,510
Jul 1999072617.892.37$1,722
Jun 199917683215.942.36$4,771
May 1999075815.792.32$1,759
Apr 1999082815.102.21$1,828
Mar 1999088612.471.84$1,629
Feb 199908359.981.82$1,518
Jan 1999072010.381.90$1,368
Dec 199808379.201.77$1,484
Nov 199818475610.892.19$3,656
Oct 1998091812.421.97$1,808
Sep 1998085912.592.08$1,789
Aug 199801,01411.301.91$1,934
Jul 199801,00211.742.24$2,242
Jun 1998091411.242.24$2,045
May 19981841,00412.622.21$4,537
Apr 1998089813.042.51$2,250
Mar 199801,00912.802.31$2,330
Feb 1998085713.952.30$1,970
Jan 1998097614.702.15$2,103
Dec 199701,09816.322.41$2,647
Nov 19971811,00118.193.09$6,384
Oct 199701,17319.253.15$3,695
Sep 1997082317.742.95$2,432
Aug 199701,10117.862.55$2,813
Jul 199701,02417.582.25$2,301
Jun 199701,16417.242.26$2,627
May 19971751,15118.972.31$5,977
Apr 1997096017.882.08$1,999
Mar 199701,04918.951.94$2,034
Feb 199701,23520.492.21$2,724
Jan 1997081523.483.54$2,885
Dec 1996078323.32$0
Nov 199617983321.97$3,933
Oct 1996092323.31$0
Sep 1996090122.22$0
Aug 1996083420.26$0
Jul 1996084619.55$0
Jun 1996070018.73$0
May 199617863519.43$3,459
Apr 1996055821.51$0
Mar 1996075019.38$0
Feb 1996079116.98$0
Jan 1996083117.07$0
Dec 1995089717.19$0
Nov 199518288016.00$2,912
Oct 1995085515.43$0
Sep 199501,05116.18$0
Aug 1995099115.92$0
Jul 199501,10615.24$0
Jun 199501,10016.41$0
May 19951761,11317.56$3,091
Apr 199501,07017.73$0
Mar 1995089116.44$0
Feb 1995046916.58$0
Jan 1995060715.92$0
Dec 199415461315.03$2,315
Nov 1994072515.90$0
Oct 199401,04115.58$0
Sep 1994087415.29$0
Aug 199401,05316.13$0
Jul 199401,01317.56$0
Jun 1994097717.09$0
May 19941801,06315.88$2,858
Apr 199401,03914.14$0
Mar 199401,10112.46$0
Feb 199401,08112.50$0
Jan 19941721,09112.66$2,178
Dec 199301,07712.33$0
Nov 199301,06614.49$0
Oct 1993095715.85$0
Sep 1993089815.03$0
Aug 199318071015.66$2,819
Jul 199301,06415.46$0
Jun 199301,07616.79$0
May 1993097017.68$0
Apr 199301,15318.05$0
Mar 199316092418.14$2,902
Feb 1993087417.90$0
Jan 1993088016.93$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                    0 bbl  × $106.41 =         $0
Casinghead gas       297 Mcf  × $  3.05 =       $905

────────────────────────────────────────────────────
Month total                                     $905

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. 10/O/5171 is the state's own key, not one this site invented.