DUFF, A. H. ESTATE 'B'

Operated by TREK RESOURCES, INC. (P-5 867578) in the DOVE CREEK (CANYON -D-) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 13226District 7CField 25930426OilCasinghead gasSaveExport
Value, all time
$542 k
Jan 1993 – Jun 2017
Value, last 12 filed months
$0
at the published price for each month
Months reported
294
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 72 leases and 121 wells, and the rule below applies to all of them.

Discovered
1965-06-18
as the register files it
Field class
Oil and gas
the register's own label
Between wells
1,320 ft
minimum
From a lease line
660 ft
minimum

A drilling unit in this field needs at least 40 acres.

The Commission's schedule remark for this field reads: CONSOLIDATED) FIELD EFFECTIVE 03/01/2026.

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
OilDisposition3,352 bbl$95,377
Casinghead gasProduction110,681 Mcf$446,398
Total$541,776

8,134 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 (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 31.0974, -100.6750. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.0 miles.

31.09742, -100.67503 · 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%
1 of 1 wells
With a plug date
100.0%
1 of 1 wells
Median depth
6,670 ft
1 wells filed one
Completion to plug
42.9 years
median over 1 well

What the state filed about each well

On the RRC proration schedule
1100.0%
A plug date is filed
1100.0%
BothOn the schedule and plugged. Neither fact cancels the other.
1100.0%
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

The one well that filed a depth was drilled to 6,670 ft.

Completions filed
Oct 1979
1 of 1 wells
Plug dates filed
Sep 2022
1 of 1 wells

Last completion to plug: a median of 42.9 years across the 1 well that filed both dates, with the middle half between 42.9 years and 42.9 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

1 well

42-4513052216,670 ftOct 1979Sep 2022Yes

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 (294)

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

294 months

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 2015010832.362.00$216
Nov 2015021738.792.17$470
Oct 2015036243.552.43$878
Sep 2015023842.992.76$657
Aug 2015028140.162.87$807
Jul 2015029048.152.95$854
Jun 2015024256.152.88$698
May 2015022055.212.96$650
Apr 2015027949.822.71$755
Mar 2015021542.892.93$631
Feb 2015020044.662.98$595
Jan 2015021643.433.10$670
Dec 2014027854.693.59$998
Nov 2014022870.464.25$969
Oct 2014024778.303.90$964
Sep 2014029186.164.05$1,177
Aug 2014031589.394.04$1,271
Jul 2014029996.564.18$1,250
Jun 2014030798.164.74$1,454
May 2014031794.734.73$1,498
Apr 2014034695.944.81$1,664
Mar 2014024295.895.06$1,224
Feb 2014038097.406.19$2,353
Jan 20140390.404.86$15
Dec 20130091.824.35$0
Nov 20130088.853.74$0
Oct 20130097.423.78$0
Sep 201300104.113.72$0
Aug 2013046104.253.52$162
Jul 2013054102.523.72$201
Jun 2013028694.403.93$1,125
May 2013036494.834.15$1,510
Apr 2013039693.964.28$1,696
Mar 2013034893.623.91$1,362
Feb 201304791.233.42$161
Jan 2013026991.603.42$920
Dec 2012025586.773.42$872
Nov 2012029786.953.62$1,077
Oct 2012029989.383.40$1,017
Sep 2012030594.672.92$890
Aug 2012029892.662.91$867
Jul 2012014885.133.02$447
Jun 2012026179.822.52$657
May 2012030691.612.49$761
Apr 20120314101.652.00$627
Mar 20120339105.052.22$753
Feb 20120293101.102.57$753
Jan 2012036198.092.73$987
Dec 2011031996.873.24$1,033
Nov 2011028995.723.31$957
Oct 2011024784.983.65$901
Sep 2011024683.623.99$981
Aug 2011034483.404.15$1,427
Jul 2011040694.144.52$1,834
Jun 2011033192.904.64$1,536
May 201116835298.134.40$18,036
Apr 20110218105.964.33$945
Mar 2011029696.364.06$1,201
Feb 2011023185.644.18$966
Jan 2011026086.504.59$1,193
Dec 2010019485.734.35$843
Nov 2010017080.843.80$645
Oct 2010018478.103.51$646
Sep 2010021072.633.98$836
Aug 2010022673.684.42$999
Jul 2010019572.554.74$924
Jun 2010019370.364.91$948
May 2010025571.124.24$1,080
Apr 2010024681.694.12$1,014
Mar 2010023478.394.39$1,027
Feb 2010020473.585.44$1,110
Jan 2010025874.365.96$1,539
Dec 2009023871.445.48$1,305
Nov 2009032974.593.75$1,234
Oct 2009024772.544.11$1,015
Sep 2009020665.543.06$631
Aug 2009029367.423.22$943
Jul 2009032461.133.46$1,123
Jun 2009027966.163.90$1,087
May 2009040854.743.93$1,602
Apr 2009011546.773.59$413
Mar 20090042.144.06$0
Feb 2009017132.814.63$792
Jan 2009022335.865.37$1,198
Dec 2008017037.105.98$1,016
Nov 2008022455.496.86$1,537
Oct 2008025875.246.92$1,786
Sep 20080251101.767.88$1,977
Aug 20080380114.228.48$3,224
Jul 20080338131.0811.39$3,850
Jun 20080276131.3313.03$3,597
May 20080292123.1711.57$3,380
Apr 20080277110.3110.45$2,896
Mar 20080345101.909.66$3,334
Feb 200816030992.538.77$17,515
Jan 2008019090.388.21$1,559
Dec 2007015188.337.30$1,103
Nov 2007026191.677.29$1,903
Oct 2007039082.856.92$2,700
Sep 2007038075.846.24$2,373
Aug 2007030269.066.39$1,929
Jul 2007025570.906.39$1,629
Jun 2007027062.007.55$2,038
May 2007031558.747.85$2,472
Apr 2007029659.617.81$2,310
Mar 2007033656.927.30$2,453
Feb 2007028355.108.22$2,325
Jan 2007034350.306.73$2,307
Dec 2006038356.656.92$2,650
Nov 2006034854.207.62$2,651
Oct 2006045554.906.01$2,736
Sep 2006045560.085.04$2,292
Aug 2006037568.717.34$2,752
Jul 2006025269.376.34$1,598
Jun 2006034466.286.38$2,196
May 2006033466.016.42$2,146
Apr 2006039764.397.36$2,922
Mar 2006037256.707.08$2,635
Feb 2006029357.597.75$2,271
Jan 2006038460.598.93$3,430
Dec 2005040154.9413.42$5,380
Nov 2005034754.6910.59$3,674
Oct 2005049858.3413.80$6,870
Sep 200511646561.4512.08$12,745
Aug 2005042261.519.80$4,134
Jul 2005035255.697.84$2,761
Jun 2005038752.337.38$2,856
May 2005039545.226.65$2,627
Apr 2005036349.207.36$2,672
Mar 200501950.377.15$136
Feb 2005046145.226.31$2,910
Jan 2005046143.166.32$2,915
Dec 2004037039.866.75$2,498
Nov 2004029045.286.33$1,836
Oct 2004048249.706.52$3,140
Sep 2004041443.245.28$2,188
Aug 2004044142.375.55$2,448
Jul 200413254938.286.08$8,393
Jun 2004054436.106.43$3,500
May 2004021337.486.49$1,383
Apr 2004050434.475.86$2,953
Mar 2004061434.365.53$3,396
Feb 2004057532.455.51$3,168
Jan 2004051732.036.30$3,257
Dec 2003059930.266.30$3,775
Nov 2003055328.804.60$2,541
Oct 2003055628.174.76$2,646
Sep 2003068726.314.75$3,263
Aug 2003073529.765.13$3,770
Jul 2003066229.415.17$3,423
Jun 2003035228.565.98$2,106
May 2003041526.595.97$2,479
Apr 20038832026.675.41$4,077
Mar 2003011931.146.10$725
Feb 200304433.487.93$349
Jan 200307030.315.58$391
Dec 2002010626.914.85$515
Nov 200211342724.664.14$4,553
Oct 2002059226.464.23$2,504
Sep 2002043127.443.64$1,567
Aug 2002556225.963.16$1,624
Jul 2002013224.583.06$404
Jun 2002030423.733.34$1,015
May 200202124.663.58$75
Apr 2002061123.653.51$2,146
Mar 2002071922.003.10$2,231
Feb 200212356618.222.38$3,586
Jan 2002069417.172.38$1,649
Dec 2001062616.932.36$1,480
Nov 2001048918.072.41$1,176
Oct 2001062919.782.53$1,591
Sep 200112373424.262.25$4,636
Aug 2001083624.873.05$2,552
Jul 2001049323.933.20$1,576
Jun 2001075524.563.82$2,887
May 2001085825.524.31$3,696
Apr 2001092324.685.34$4,925
Mar 200112960324.545.38$6,408
Feb 2001086727.755.77$5,000
Jan 200101,00027.478.40$8,399
Dec 200001,00326.889.12$9,150
Nov 200001,05132.215.66$5,947
Oct 20001701,00331.235.15$10,470
Sep 200001,15131.875.19$5,970
Aug 200001,21129.644.54$5,499
Jul 200001,18028.534.09$4,826
Jun 200001,14029.304.40$5,013
May 20001251,22527.263.68$7,915
Apr 200001,32224.513.12$4,119
Mar 2000063728.422.86$1,822
Feb 2000078527.622.73$2,140
Jan 20001661,16425.272.48$7,082
Dec 1999092824.282.42$2,249
Nov 1999085823.192.43$2,088
Oct 19991691,18820.982.80$6,876
Sep 199901,30221.752.62$3,410
Aug 199901,26719.262.88$3,643
Jul 199901,35917.892.37$3,224
Jun 19991711,27415.942.36$5,735
May 199901,18315.792.32$2,746
Apr 199901,10515.102.21$2,440
Mar 19991691,04312.471.84$4,025
Feb 199909739.981.82$1,769
Jan 19991771,03310.381.90$3,800
Dec 199809979.201.77$1,768
Nov 199818394410.892.19$4,056
Oct 1998095312.421.97$1,877
Sep 1998078212.592.08$1,629
Aug 199818678511.301.91$3,599
Jul 1998058411.742.24$1,307
Jun 199817759711.242.24$3,325
May 1998052312.622.21$1,154
Apr 1998047213.042.51$1,183
Mar 1998043312.802.31$1,000
Feb 1998035113.952.30$807
Jan 1998028214.702.15$608
Dec 1997040016.322.41$964
Nov 1997044718.193.09$1,380
Oct 199701,12919.253.15$3,556
Sep 1997093817.742.95$2,772
Aug 1997086317.862.55$2,205
Jul 1997066417.582.25$1,492
Jun 1997077717.242.26$1,754
May 199716458818.972.31$4,468
Apr 1997068417.882.08$1,425
Mar 1997061118.951.94$1,185
Feb 1997048320.492.21$1,065
Jan 1997056923.483.54$2,014
Dec 1996048323.32$0
Nov 1996051521.97$0
Oct 1996057423.31$0
Sep 199604122.22$0
Aug 199609620.26$0
Jul 199607119.55$0
Jun 199607118.73$0
May 1996015119.43$0
Apr 1996012321.51$0
Mar 1996012119.38$0
Feb 199606116.98$0
Jan 199607517.07$0
Dec 1995014617.19$0
Nov 1995016716.00$0
Oct 1995010215.43$0
Sep 1995010516.18$0
Aug 1995010915.92$0
Jul 1995015615.24$0
Jun 199517117416.41$2,806
May 1995022717.56$0
Apr 1995023117.73$0
Mar 1995026616.44$0
Feb 1995029116.58$0
Jan 1995025815.92$0
Dec 19941225515.03$180
Nov 19941015615.90$159
Oct 19941022115.58$156
Sep 1994126915.29$183
Aug 19942211616.13$355
Jul 199499617.56$158
Jun 1994126717.09$205
May 1994111815.88$175
Apr 1994413714.14$57
Mar 1994423712.46$50
Feb 1994825712.50$100
Jan 1994013812.66$0
Dec 1993024912.33$0
Nov 1993111614.49$14
Oct 199309015.85$0
Sep 199306615.03$0
Aug 199301515.66$0
Jul 1993112215.46$15
Jun 199317316.79$17
May 1993014017.68$0
Apr 1993024618.05$0
Mar 1993017918.14$0
Feb 1993018317.90$0
Jan 1993027416.93$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.

Dec 2015 — as filed, then multipliedworked
Oil                    0 bbl  × $ 32.36 =         $0
Casinghead gas       108 Mcf  × $  2.00 =       $216

────────────────────────────────────────────────────
Month total                                     $216

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. 7C/O/13226 is the state's own key, not one this site invented.