COOPER, J. W.

Operated by GEOMARK RESOURCES, L.L.C. (P-5 300802) in the ROARING SPRINGS, W. (PERMO-PENN) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 13640District 8AField 77134500Hydrogen sulphide fieldOilCasinghead gasSaveExport
Value, all time
$2.3 M
Jan 1993 – May 2026
Value, last 12 filed months
$114 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 15 leases and 23 wells, and the rule below applies to all of them.

Discovered
1958-03-30
as the register files it
Field class
Oil
the register's own label
Between wells
1,200 ft
minimum
From a lease line
467 ft
minimum

A drilling unit in this field needs at least 80 acres.

The register flags this field for hydrogen sulphide. That is a poisonous gas that occurs naturally in some formations. The flag is a property of the field as the Commission records it. It is not a measurement taken at this lease, and it is not a statement that gas is escaping anywhere.

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
OilDisposition40,823 bbl$2,271,977
Casinghead gasProduction146 Mcf$381
Total$2,272,358

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 33.8871, -100.8047. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.2 miles.

33.88713, -100.80472 · 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
50.0%
1 of 2 wells
With a plug date
50.0%
1 of 2 wells
Median depth
4,320 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
150.0%
A plug date is filed
150.0%
BothOn the schedule and plugged. Neither fact cancels the other.
150.0%
NeitherNo plug date, and not on the schedule.
150.0%

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 4,320 ft.

Plug dates filed
Jun 2000
1 of 2 wells; 1 filed none

2 wells

42-3450018414,320 ftJun 2000Yes
42-345001852

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 2026183098.932.87$18,104
Mar 2026187089.753.15$16,783
Feb 2026190063.503.75$12,065
Jan 2026179059.138.00$10,584
Dec 20250056.664.41$0
Nov 2025186058.593.93$10,898
Oct 2025182059.383.30$10,807
Sep 2025180062.743.08$11,293
Aug 2025174063.933.01$11,124
Jul 20250066.743.32$0
Jun 2025180066.483.13$11,966
May 2025184060.553.23$11,141
Apr 2025184062.363.54$11,474
Mar 20250067.704.27$0
Feb 2025170070.884.34$12,050
Jan 2025187074.324.28$13,898
Dec 20240068.993.12$0
Nov 2024185069.052.20$12,774
Oct 20240071.372.28$0
Sep 20240069.612.36$0
Aug 20240075.632.06$0
Jul 2024181079.932.15$14,467
Jun 2024180078.082.63$14,054
May 2024179078.812.20$14,107
Apr 2024188084.451.66$15,877
Mar 2024181080.301.55$14,534
Feb 2024183076.091.78$13,924
Jan 2024183073.023.30$13,363
Dec 2023183071.262.61$13,041
Nov 2023181077.892.81$14,098
Oct 2023180085.443.09$15,379
Sep 20230089.042.74$0
Aug 2023175080.522.67$14,091
Jul 20230074.852.64$0
Jun 2023180068.962.26$12,413
May 2023181070.622.23$12,782
Apr 2023183078.122.24$14,296
Mar 2023165072.852.39$12,020
Feb 2023194075.112.47$14,571
Jan 2023168076.533.39$12,857
Dec 2022185076.415.73$14,136
Nov 2022180085.005.65$15,300
Oct 2022372087.185.86$32,431
Sep 2022180084.888.16$15,278
Aug 2022170094.529.13$16,068
Jul 20221800101.587.54$18,284
Jun 20221850115.097.98$21,292
May 20221840109.378.43$20,124
Apr 20223660104.226.84$38,145
Mar 20221810108.885.08$19,707
Feb 2022187091.054.86$17,026
Jan 2022361081.844.54$29,544
Dec 2021178071.323.90$12,695
Nov 2021369077.435.24$28,572
Oct 2021362079.795.71$28,884
Sep 2021178069.865.35$12,435
Aug 2021354066.024.22$23,371
Jul 2021359070.783.98$25,410
Jun 2021180069.493.38$12,508
May 2021178063.483.02$11,299
Apr 2021361060.362.76$21,790
Mar 2021360061.302.72$22,068
Feb 2021183057.805.55$10,577
Jan 2021368050.412.81$18,551
Dec 2020176044.642.68$7,857
Nov 2020180038.772.71$6,979
Oct 20200036.972.48$0
Sep 20200037.091.99$0
Aug 20200039.982.39$0
Jul 2020150038.371.83$5,756
Jun 20200034.901.69$0
May 20200016.921.81$0
Apr 2020182014.751.80$2,685
Mar 20200030.341.86$0
Feb 2020230049.881.98$11,472
Jan 20200057.252.09$0
Dec 2019180059.012.30$10,622
Nov 20190055.302.75$0
Oct 2019180053.472.42$9,625
Sep 2019178055.052.66$9,799
Aug 2019185053.112.30$9,825
Jul 2019185056.272.46$10,410
Jun 20190052.782.49$0
May 2019175058.482.74$10,234
Apr 20190062.632.75$0
Mar 2019185056.803.06$10,508
Feb 20190050.852.79$0
Jan 2019187046.033.23$8,608
Dec 20180046.594.19$0
Nov 2018182052.934.24$9,633
Oct 20180061.443.40$0
Sep 20180059.543.11$0
Aug 20180059.403.07$0
Jul 20180065.142.93$0
Jun 2018187060.183.08$11,254
May 20180065.382.90$0
Apr 2018187063.842.90$11,938
Mar 2018182061.222.79$11,142
Feb 20180061.782.77$0
Jan 2018186062.874.01$11,694
Dec 2017186057.272.92$10,652
Nov 20170055.423.12$0
Oct 20170049.292.98$0
Sep 2017182047.523.09$8,649
Aug 20170045.373.00$0
Jul 20170043.873.09$0
Jun 20170042.493.09$0
May 20170045.373.26$0
Apr 2017183047.933.21$8,771
Mar 20170046.772.98$0
Feb 2017189050.452.95$9,535
Jan 20170049.413.42$0
Dec 20160048.763.72$0
Nov 2016179042.492.64$7,606
Oct 20160046.193.09$0
Sep 2016184041.553.10$7,645
Aug 20160041.442.92$0
Jul 2016181041.622.92$7,533
Jun 20160045.352.69$0
May 2016188042.521.99$7,994
Apr 20160036.561.99$0
Mar 2016172033.011.79$5,678
Feb 20160026.472.06$0
Jan 20160027.352.36$0
Dec 2015184032.362.00$5,954
Nov 20150038.792.17$0
Oct 2015185043.552.43$8,057
Sep 2015182042.992.76$7,824
Aug 2015186040.162.87$7,470
Jul 20150048.152.95$0
Jun 2015187056.152.88$10,500
May 20150055.212.96$0
Apr 20150049.822.71$0
Mar 20150042.892.93$0
Feb 20150044.662.98$0
Jan 2015186043.433.10$8,078
Dec 2014185054.693.59$10,118
Nov 20140070.464.25$0
Oct 2014186078.303.90$14,564
Sep 20140086.164.05$0
Aug 2014191089.394.04$17,073
Jul 20140096.564.18$0
Jun 2014174098.164.74$17,080
May 20140094.734.73$0
Apr 20140095.944.81$0
Mar 2014173095.895.06$16,589
Feb 20140097.406.19$0
Jan 2014168090.404.86$15,187
Dec 2013187091.824.35$17,170
Nov 20130088.853.74$0
Oct 2013186097.423.78$18,120
Sep 201300104.113.72$0
Aug 20131660104.253.52$17,306
Jul 20131540102.523.72$15,788
Jun 20130094.403.93$0
May 20130094.834.15$0
Apr 20130093.964.28$0
Mar 2013157093.623.91$14,698
Feb 20130091.233.42$0
Jan 20130091.603.42$0
Dec 2012188086.773.42$16,313
Nov 20120086.953.62$0
Oct 20120089.383.40$0
Sep 2012180094.672.92$17,041
Aug 20120092.662.91$0
Jul 2012176085.133.02$14,983
Jun 20120079.822.52$0
May 2012189091.612.49$17,314
Apr 201200101.652.00$0
Mar 20121900105.052.22$19,960
Feb 20121910101.102.57$19,310
Jan 20120098.092.73$0
Dec 2011191096.873.24$18,502
Nov 2011185095.723.31$17,708
Oct 20110084.983.65$0
Sep 2011187083.623.99$15,637
Aug 20110083.404.15$0
Jul 2011186094.144.52$17,510
Jun 2011173092.904.64$16,072
May 20110098.134.40$0
Apr 20111870105.964.33$19,815
Mar 20110096.364.06$0
Feb 2011190085.644.18$16,272
Jan 2011181086.504.59$15,657
Dec 2010187085.734.35$16,032
Nov 20100080.843.80$0
Oct 2010176078.103.51$13,746
Sep 2010185072.633.98$13,437
Aug 2010186073.684.42$13,704
Jul 2010185072.554.74$13,422
Jun 2010167070.364.91$11,750
May 2010180071.124.24$12,802
Apr 20100081.694.12$0
Mar 2010181078.394.39$14,189
Feb 2010176073.585.44$12,950
Jan 2010187074.365.96$13,905
Dec 2009189071.445.48$13,502
Nov 20090074.593.75$0
Oct 20090072.544.11$0
Sep 20090065.543.06$0
Aug 2009189067.423.22$12,742
Jul 2009188061.133.46$11,492
Jun 20090066.163.90$0
May 20090054.743.93$0
Apr 20090046.773.59$0
Mar 2009181042.144.06$7,627
Feb 2009170032.814.63$5,578
Jan 20090035.865.37$0
Dec 20080037.105.98$0
Nov 2008187055.496.86$10,377
Oct 2008189075.246.92$14,220
Sep 20081850101.767.88$18,826
Aug 200800114.228.48$0
Jul 20081850131.0811.39$24,250
Jun 200800131.3313.03$0
May 200800123.1711.57$0
Apr 200800110.3110.45$0
Mar 200800101.909.66$0
Feb 2008159092.538.77$14,712
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 20070069.066.39$0
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 2007174050.306.73$8,752
Dec 20060056.656.92$0
Nov 2006175054.207.62$9,485
Oct 20060054.906.01$0
Sep 2006183060.085.04$10,995
Aug 20060068.717.34$0
Jul 20060069.376.34$0
Jun 20060066.286.38$0
May 2006185066.016.42$12,212
Apr 20060064.397.36$0
Mar 2006179056.707.08$10,149
Feb 20060057.597.75$0
Jan 2006187060.598.93$11,330
Dec 20050054.9413.42$0
Nov 2005182054.6910.59$9,954
Oct 2005176058.3413.80$10,268
Sep 2005185061.4512.08$11,368
Aug 20050061.519.80$0
Jul 2005185055.697.84$10,303
Jun 20050052.337.38$0
May 2005182045.226.65$8,230
Apr 2005189049.207.36$9,299
Mar 2005179050.377.15$9,016
Feb 20050145.226.31$6
Jan 20050143.166.32$6
Dec 2004362139.866.75$14,436
Nov 20040145.286.33$6
Oct 20040149.706.52$7
Sep 2004188143.245.28$8,134
Aug 20040142.375.55$6
Jul 20040138.286.08$6
Jun 20040136.106.43$6
May 20040137.486.49$6
Apr 2004187134.475.86$6,452
Mar 20040134.365.53$6
Feb 2004182132.455.51$5,911
Jan 20040132.036.30$6
Dec 20030130.266.30$6
Nov 2003182128.804.60$5,246
Oct 20030128.174.76$5
Sep 2003182126.314.75$4,793
Aug 20030129.765.13$5
Jul 2003149129.415.17$4,387
Jun 20030128.565.98$6
May 20030126.595.97$6
Apr 2003185126.675.41$4,939
Mar 20030131.146.10$6
Feb 2003167133.487.93$5,599
Jan 2003180130.315.58$5,461
Dec 20020126.914.85$5
Nov 2002175124.664.14$4,320
Oct 20020126.464.23$4
Sep 2002182127.443.64$4,998
Aug 2002174125.963.16$4,520
Jul 20020124.583.06$3
Jun 2002175123.733.34$4,156
May 20020124.663.58$4
Apr 2002173123.653.51$4,095
Mar 2002184122.003.10$4,051
Feb 20020118.222.38$2
Jan 2002177117.172.38$3,041
Dec 2001180116.932.36$3,050
Nov 20010118.072.41$2
Oct 2001172119.782.53$3,405
Sep 2001174124.262.25$4,223
Aug 20010124.873.05$3
Jul 2001172123.933.20$4,119
Jun 20010124.563.82$4
May 20010125.524.31$4
Apr 20010124.685.34$5
Mar 20010124.545.38$5
Feb 20010127.755.77$6
Jan 20010127.478.40$8
Dec 20000126.889.12$9
Nov 2000175132.215.66$5,642
Oct 2000176131.235.15$5,502
Sep 20000131.875.19$5
Aug 2000172129.644.54$5,103
Jul 20000128.534.09$4
Jun 2000186129.304.40$5,454
May 2000191127.263.68$5,210
Apr 20000124.513.12$3
Mar 2000180128.422.86$5,118
Feb 20000127.622.73$3
Jan 2000175125.272.48$4,425
Dec 19990124.282.42$2
Nov 1999174123.192.43$4,037
Oct 199957120.982.80$1,199
Sep 1999168121.752.62$3,657
Aug 1999165119.262.88$3,181
Jul 1999169117.892.37$3,026
Jun 19990115.942.36$2
May 1999170115.792.32$2,687
Apr 19990115.102.21$2
Mar 1999171112.471.84$2,134
Feb 1999019.981.82$2
Jan 1999182110.381.90$1,891
Dec 1998019.201.77$2
Nov 1998174110.892.19$1,897
Oct 19980112.421.97$2
Sep 1998173112.592.08$2,180
Aug 1998175111.301.91$1,979
Jul 19980111.742.24$2
Jun 1998176111.242.24$1,980
May 1998173112.622.21$2,185
Apr 19980113.042.51$3
Mar 1998176112.802.31$2,255
Feb 1998178113.952.30$2,485
Jan 19980114.702.15$2
Dec 1997178116.322.41$2,907
Nov 1997172118.193.09$3,132
Oct 1997171119.253.15$3,295
Sep 19970117.742.95$3
Aug 1997174117.862.55$3,110
Jul 1997173117.582.25$3,044
Jun 19970117.242.26$2
May 1997174118.972.31$3,303
Apr 19970117.882.08$2
Mar 1997176118.951.94$3,337
Feb 19970120.492.21$2
Jan 19970123.483.54$4
Dec 19960123.32$0
Nov 19960121.97$0
Oct 1996172123.31$4,009
Sep 1996182122.22$4,044
Aug 19960120.26$0
Jul 1996153119.55$2,991
Jun 19960118.73$0
May 1996180119.43$3,497
Apr 1996166121.51$3,571
Mar 19960119.38$0
Feb 1996181116.98$3,073
Jan 1996177117.07$3,021
Dec 19950117.19$0
Nov 1995169116.00$2,704
Oct 1995173115.43$2,669
Sep 19950116.18$0
Aug 1995162115.92$2,579
Jul 19950115.24$0
Jun 1995172116.41$2,823
May 19950117.56$0
Apr 1995176117.73$3,120
Mar 19950116.44$0
Feb 19950116.58$0
Jan 19950115.92$0
Dec 19940115.03$0
Nov 19940115.90$0
Oct 19940115.58$0
Sep 1994178115.29$2,722
Aug 19940116.13$0
Jul 1994180117.56$3,161
Jun 19940117.09$0
May 19940115.88$0
Apr 19940114.14$0
Mar 1994180112.46$2,243
Feb 19940112.50$0
Jan 1994175112.66$2,216
Dec 19930112.33$0
Nov 19930114.49$0
Oct 1993173115.85$2,742
Sep 19930115.03$0
Aug 1993175115.66$2,741
Jul 19930115.46$0
Jun 19930116.79$0
May 1993164117.68$2,900
Apr 19930118.05$0
Mar 1993162118.14$2,939
Feb 19930117.90$0
Jan 1993175116.93$2,963

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.

Apr 2026 — as filed, then multipliedworked
Oil                  183 bbl  × $ 98.93 =    $18,104
Casinghead gas         0 Mcf  × $  2.87 =         $0

────────────────────────────────────────────────────
Month total                                  $18,104

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. 8A/O/13640 is the state's own key, not one this site invented.