DUFFER

Operated by BYRNE OIL COMPANY (P-5 119795) in the I.L. & M. (CONGL.) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 27547District 7BField 44110300OilCasinghead gasSaveExport
Value, all time
$928 k
Apr 1995 – May 2026
Value, last 12 filed months
$48 k
at the published price for each month
Months reported
374
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 15 leases and 18 wells, and the rule below applies to all of them.

Discovered
1986-01-11
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
OilDisposition7,590 bbl$330,579
Casinghead gasProduction157,016 Mcf$597,536
Total$928,115

17,904 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 32.4054, -98.6480. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.0 miles.

32.40544, -98.64797 · 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
3,544 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 3,544 ft.

Completions filed
Apr 1995
1 of 1 wells

1 well

42-1333514423,544 ftApr 1995

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 (374)

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

374 months

May 202684324106.413.05$9,925
Apr 2026031398.932.87$898
Mar 20266833589.753.15$7,158
Feb 20268725563.503.75$6,481
Jan 2026021959.138.00$1,752
Dec 20258121356.664.41$5,530
Nov 20253223958.593.93$2,813
Oct 2025019459.383.30$641
Sep 20258018062.743.08$5,573
Aug 2025020963.933.01$630
Jul 20258120666.743.32$6,089
Jun 2025020666.483.13$645
May 20254120860.553.23$3,155
Apr 20253423362.363.54$2,946
Mar 20252523067.704.27$2,674
Feb 2025020170.884.34$873
Jan 202507374.324.28$312
Dec 20243415668.993.12$2,833
Nov 202407169.052.20$156
Oct 2024539371.372.28$3,995
Sep 2024020869.612.36$492
Aug 2024019575.632.06$402
Jul 20244120079.932.15$3,706
Jun 2024020078.082.63$527
May 2024018078.812.20$396
Apr 2024020084.451.66$332
Mar 20242719180.301.55$2,463
Feb 2024016276.091.78$289
Jan 2024016073.023.30$528
Dec 2023016271.262.61$423
Nov 20232615077.892.81$2,446
Oct 2023017785.443.09$546
Sep 2023016889.042.74$459
Aug 2023016880.522.67$449
Jul 20233117174.852.64$2,772
Jun 2023018268.962.26$411
May 2023013870.622.23$307
Apr 2023014878.122.24$331
Mar 2023014372.852.39$342
Feb 2023014375.112.47$353
Jan 2023015576.533.39$525
Dec 2022017876.415.73$1,020
Nov 20228317985.005.65$8,066
Oct 2022022287.185.86$1,302
Sep 2022023184.888.16$1,886
Aug 2022026794.529.13$2,437
Jul 20220251101.587.54$1,893
Jun 202251258115.097.98$7,928
May 20220260109.378.43$2,193
Apr 20220220104.226.84$1,504
Mar 202299170108.885.08$11,642
Feb 2022023591.054.86$1,142
Jan 2022018881.844.54$853
Dec 2021021071.323.90$819
Nov 2021020077.435.24$1,047
Oct 2021020079.795.71$1,143
Sep 2021026269.865.35$1,402
Aug 2021028266.024.22$1,190
Jul 2021022070.783.98$876
Jun 2021016769.493.38$565
May 2021031163.483.02$939
Apr 20212924060.362.76$2,412
Mar 2021023961.302.72$649
Feb 2021017857.805.55$988
Jan 2021014850.412.81$416
Dec 2020013644.642.68$364
Nov 2020016138.772.71$436
Oct 2020025736.972.48$637
Sep 2020018837.091.99$374
Aug 2020020939.982.39$498
Jul 202014238038.371.83$6,142
Jun 2020040334.901.69$681
May 2020050916.921.81$924
Apr 2020034414.751.80$621
Mar 2020040030.341.86$742
Feb 2020025149.881.98$497
Jan 2020045257.252.09$947
Dec 2019037059.012.30$853
Nov 2019034555.302.75$949
Oct 2019043253.472.42$1,045
Sep 2019041955.052.66$1,113
Aug 2019048853.112.30$1,125
Jul 2019030756.272.46$755
Jun 2019038452.782.49$957
May 2019024458.482.74$669
Apr 2019026462.632.75$726
Mar 2019026356.803.06$805
Feb 20198013850.852.79$4,453
Jan 2019036446.033.23$1,175
Dec 2018045146.594.19$1,888
Nov 2018031552.934.24$1,335
Oct 2018017061.443.40$578
Sep 2018029659.543.11$920
Aug 2018025659.403.07$785
Jul 2018024265.142.93$710
Jun 2018020360.183.08$625
May 2018023565.382.90$682
Apr 2018021463.842.90$621
Mar 2018024361.222.79$677
Feb 2018017961.782.77$495
Jan 2018022762.874.01$910
Dec 2017022457.272.92$654
Nov 2017021255.423.12$661
Oct 2017023649.292.98$704
Sep 2017025847.523.09$797
Aug 2017028545.373.00$856
Jul 2017038243.873.09$1,179
Jun 20179133242.493.09$4,892
May 2017027845.373.26$907
Apr 2017033547.933.21$1,076
Mar 2017037346.772.98$1,113
Feb 2017035150.452.95$1,036
Jan 2017034349.413.42$1,173
Dec 2016030548.763.72$1,135
Nov 2016032542.492.64$859
Oct 2016031646.193.09$977
Sep 2016032441.553.10$1,005
Aug 2016029141.442.92$851
Jul 2016031941.622.92$933
Jun 20168132445.352.69$4,544
May 2016034242.521.99$681
Apr 2016031736.561.99$631
Mar 2016031033.011.79$556
Feb 2016030326.472.06$625
Jan 2016031027.352.36$733
Dec 2015030432.362.00$608
Nov 2015031038.792.17$672
Oct 2015033243.552.43$806
Sep 201510232542.992.76$5,281
Aug 2015033840.162.87$971
Jul 2015034248.152.95$1,007
Jun 2015032456.152.88$934
May 2015031755.212.96$937
Apr 2015031749.822.71$858
Mar 2015030542.892.93$895
Feb 2015026844.662.98$798
Jan 201510132743.433.10$5,400
Dec 2014033754.693.59$1,210
Nov 2014030670.464.25$1,301
Oct 2014038078.303.90$1,482
Sep 2014033686.164.05$1,359
Aug 2014033889.394.04$1,364
Jul 2014034496.564.18$1,438
Jun 2014033498.164.74$1,582
May 20147231994.734.73$8,328
Apr 2014030195.944.81$1,448
Mar 2014025195.895.06$1,269
Feb 2014027797.406.19$1,715
Jan 2014027790.404.86$1,346
Dec 2013028391.824.35$1,232
Nov 2013027788.853.74$1,036
Oct 201312828497.423.78$13,543
Sep 20130271104.113.72$1,008
Aug 20130273104.253.52$962
Jul 20130284102.523.72$1,056
Jun 2013026494.403.93$1,038
May 2013028294.834.15$1,170
Apr 2013025893.964.28$1,105
Mar 201311727393.623.91$12,022
Feb 2013029391.233.42$1,002
Jan 2013025691.603.42$876
Dec 20122724786.773.42$3,188
Nov 2012025886.953.62$935
Oct 2012029389.383.40$996
Sep 2012027794.672.92$808
Aug 2012030292.662.91$878
Jul 2012029985.133.02$903
Jun 2012029679.822.52$746
May 201212228791.612.49$11,891
Apr 20120281101.652.00$561
Mar 20120272105.052.22$604
Feb 20120256101.102.57$658
Jan 2012028298.092.73$771
Dec 2011027996.873.24$904
Nov 2011027395.723.31$904
Oct 201110830784.983.65$10,298
Sep 2011031383.623.99$1,248
Aug 2011035783.404.15$1,481
Jul 2011034394.144.52$1,549
Jun 2011032292.904.64$1,494
May 2011030998.134.40$1,361
Apr 20110361105.964.33$1,564
Mar 2011029296.364.06$1,185
Feb 201112728385.644.18$12,059
Jan 2011028886.504.59$1,322
Dec 2010030785.734.35$1,335
Nov 2010029580.843.80$1,120
Oct 2010033978.103.51$1,190
Sep 2010032672.633.98$1,297
Aug 2010034973.684.42$1,542
Jul 201011534172.554.74$9,958
Jun 2010034670.364.91$1,699
May 2010037071.124.24$1,567
Apr 2010033981.694.12$1,398
Mar 2010038578.394.39$1,690
Feb 2010027173.585.44$1,475
Jan 2010031474.365.96$1,873
Dec 200911743971.445.48$10,766
Nov 2009049074.593.75$1,838
Oct 2009043272.544.11$1,776
Sep 2009045165.543.06$1,382
Aug 2009040967.423.22$1,316
Jul 2009046061.133.46$1,594
Jun 2009046066.163.90$1,792
May 2009046154.743.93$1,810
Apr 200911643846.773.59$6,997
Mar 2009045842.144.06$1,859
Feb 2009039732.814.63$1,839
Jan 2009042735.865.37$2,293
Dec 2008043037.105.98$2,570
Nov 2008045355.496.86$3,108
Oct 2008048875.246.92$3,378
Sep 20080385101.767.88$3,033
Aug 20080458114.228.48$3,885
Jul 2008109464131.0811.39$19,572
Jun 20080466131.3313.03$6,073
May 20080496123.1711.57$5,741
Apr 20080476110.3110.45$4,977
Mar 20080457101.909.66$4,416
Feb 2008041192.538.77$3,605
Jan 200811945190.388.21$14,456
Dec 2007046288.337.30$3,374
Nov 2007046991.677.29$3,420
Oct 2007051582.856.92$3,565
Sep 2007048075.846.24$2,997
Aug 2007052969.066.39$3,379
Jul 200711853770.906.39$11,797
Jun 2007052662.007.55$3,970
May 2007043958.747.85$3,445
Apr 2007040959.617.81$3,192
Mar 2007046056.927.30$3,359
Feb 2007038155.108.22$3,130
Jan 2007041250.306.73$2,771
Dec 2006043656.656.92$3,016
Nov 20067646554.207.62$7,661
Oct 2006051254.906.01$3,079
Sep 2006048260.085.04$2,428
Aug 2006050968.717.34$3,736
Jul 2006050069.376.34$3,171
Jun 2006047866.286.38$3,051
May 2006046966.016.42$3,013
Apr 20069544064.397.36$9,356
Mar 2006046656.707.08$3,301
Feb 2006036957.597.75$2,860
Jan 2006043460.598.93$3,877
Dec 2005045854.9413.42$6,144
Nov 2005045754.6910.59$4,839
Oct 2005049958.3413.80$6,884
Sep 2005040861.4512.08$4,928
Aug 2005048361.519.80$4,732
Jul 2005047055.697.84$3,687
Jun 20059343852.337.38$8,100
May 2005045645.226.65$3,033
Apr 2005043349.207.36$3,187
Mar 2005089450.377.15$6,396
Feb 2005039645.226.31$2,500
Jan 2005044343.166.32$2,801
Dec 2004044139.866.75$2,977
Nov 20048742645.286.33$6,636
Oct 2004044949.706.52$2,925
Sep 2004048943.245.28$2,584
Aug 2004053042.375.55$2,942
Jul 2004049638.286.08$3,018
Jun 2004049636.106.43$3,191
May 2004050837.486.49$3,299
Apr 2004045934.475.86$2,689
Mar 2004043434.365.53$2,400
Feb 200410441532.455.51$5,661
Jan 2004047232.036.30$2,973
Dec 2003044030.266.30$2,773
Nov 2003044228.804.60$2,031
Oct 2003046828.174.76$2,228
Sep 2003049026.314.75$2,327
Aug 20038456529.765.13$5,398
Jul 2003052829.415.17$2,730
Jun 2003047328.565.98$2,830
May 2003050526.595.97$3,016
Apr 2003048626.675.41$2,628
Mar 20039256631.146.10$6,315
Feb 2003044833.487.93$3,551
Jan 2003046730.315.58$2,607
Dec 2002047726.914.85$2,315
Nov 20029850824.664.14$4,518
Oct 2002050826.464.23$2,148
Sep 2002056527.443.64$2,054
Aug 2002058125.963.16$1,838
Jul 2002060424.583.06$1,849
Jun 200210156223.733.34$4,273
May 2002059524.663.58$2,132
Apr 2002058023.653.51$2,037
Mar 2002044822.003.10$1,390
Feb 2002034418.222.38$817
Jan 20028760517.172.38$2,931
Dec 2001045216.932.36$1,069
Nov 2001023418.072.41$563
Oct 2001061719.782.53$1,560
Sep 20018864724.262.25$3,591
Aug 2001066224.873.05$2,021
Jul 2001074723.933.20$2,388
Jun 2001064624.563.82$2,470
May 200110466225.524.31$5,506
Apr 2001063424.685.34$3,383
Mar 2001063424.545.38$3,409
Feb 200111357627.755.77$6,458
Jan 2001071227.478.40$5,980
Dec 2000053126.889.12$4,844
Nov 2000052432.215.66$2,965
Oct 20009658931.235.15$6,029
Sep 2000058231.875.19$3,019
Aug 2000061229.644.54$2,779
Jul 2000055928.534.09$2,286
Jun 2000050529.304.40$2,221
May 2000056127.263.68$2,064
Apr 2000056724.513.12$1,767
Mar 2000054228.422.86$1,550
Feb 200010153227.622.73$4,240
Jan 2000059325.272.48$1,471
Dec 1999062924.282.42$1,525
Nov 1999058923.192.43$1,434
Oct 1999064120.982.80$1,797
Sep 199910064821.752.62$3,872
Aug 1999069519.262.88$1,999
Jul 1999069517.892.37$1,649
Jun 1999066715.942.36$1,576
May 1999067415.792.32$1,564
Apr 199911065115.102.21$3,098
Mar 1999069612.471.84$1,279
Feb 199906289.981.82$1,142
Jan 19998369410.381.90$2,180
Dec 199807049.201.77$1,248
Nov 1998071310.892.19$1,558
Oct 19988976412.421.97$2,610
Sep 1998073912.592.08$1,539
Aug 1998079711.301.91$1,520
Jul 199811678511.742.24$3,118
Jun 1998076811.242.24$1,718
May 1998079012.622.21$1,743
Apr 199813174813.042.51$3,582
Mar 1998079012.802.31$1,824
Feb 1998072013.952.30$1,655
Jan 199815076014.702.15$3,843
Dec 1997076916.322.41$1,854
Nov 199711077518.193.09$4,394
Oct 1997081219.253.15$2,558
Sep 1997075217.742.95$2,222
Aug 1997080717.862.55$2,062
Jul 199711381617.582.25$3,820
Jun 1997078217.242.26$1,765
May 199714780418.972.31$4,645
Apr 1997078517.882.08$1,635
Mar 199712580218.951.94$3,924
Feb 1997072120.492.21$1,590
Jan 1997076623.483.54$2,711
Dec 1996079723.32$0
Nov 19969083121.97$1,977
Oct 1996080123.31$0
Sep 19967673722.22$1,689
Aug 1996075720.26$0
Jul 199613076719.55$2,542
Jun 1996073918.73$0
May 1996072519.43$0
Apr 199613169221.51$2,818
Mar 1996067219.38$0
Feb 199616470016.98$2,785
Jan 1996069017.07$0
Dec 199513174917.19$2,252
Nov 1995075216.00$0
Oct 199512076615.43$1,852
Sep 1995076716.18$0
Aug 199512688215.92$2,006
Jul 199517097015.24$2,591
Jun 19951751,18316.41$2,872
May 19955051,84217.56$8,868
Apr 199501,08517.73$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                   84 bbl  × $106.41 =     $8,938
Casinghead gas       324 Mcf  × $  3.05 =       $987

────────────────────────────────────────────────────
Month total                                   $9,925

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. 7B/O/27547 is the state's own key, not one this site invented.