SHANNON, J. M. -A-

Operated by GTG OPERATING, LLC (P-5 337080) in the ELKHORN (ELLENBURGER) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 435District 7CField 28393333Hydrogen sulphide fieldNGPA filingOilCasinghead gasSaveExport
Value, all time
$34.3 M
Jan 1993 – May 2026
Value, last 12 filed months
$457 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 6 leases and 48 wells, and the rule below applies to all of them.

Discovered
1951-06-29
as the register files it
Field class
Oil
the register's own label
Between wells
0 ft
minimum
From a lease line
467 ft
minimum

A drilling unit in this field needs at least 40 acres. The field rule took effect on 2004-07-22.

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.

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
NGPA10none

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
OilDisposition698,229 bbl$31,331,726
Casinghead gasProduction1,125,082 Mcf$2,965,705
Total$34,297,431

395,595 Mcf of this lease's gas, across 45 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 (27)

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 30.8867, -101.3638. A lease has no coordinate of its own — that point is the mean of its wells, and they span 2.2 miles.

30.88526, -101.36508 · 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
55.6%
15 of 27 wells
With a plug date
44.4%
12 of 27 wells
Median depth
7,512 ft
22 wells filed one
Completion to plug
20.4 years
median over 4 wells

What the state filed about each well

On the RRC proration schedule
1555.6%
A plug date is filed
1244.4%
BothOn the schedule and plugged. Neither fact cancels the other.
1244.4%
NeitherNo plug date, and not on the schedule.
1244.4%

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

Total depth in feet, 22 of 27 wells. Median 7,512 ft, with the middle half between 7,417 and 7,652 ft; the shallowest is 7,004 ft and the deepest 8,418 ft. The median is published rather than the mean, because a single mis-keyed depth moves a mean and cannot move a median.

When they were last completed

Last completion by decade, 12 of 27 wells, Dec 1988 – May 2017. This is the LAST completion filed on each wellbore, not the first — a well recompleted in 2019 counts once, in the 2010s.

Completions filed
Dec 1988 – May 2017
12 of 27 wells; 15 filed none
Plug dates filed
Jul 1982 – Jan 2019
12 of 27 wells; 15 filed none

Last completion to plug: a median of 20.4 years across the 4 wells that filed both dates, with the middle half between 16.4 years and 21.8 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

27 wells

42-1050064237,515 ftJun 2014Yes
42-105006496Yes
42-1050065811Yes
42-10500672257,646 ftJan 1984Yes
42-10500673267,690 ftDec 1986Yes
42-10500674277,542 ftJun 2014Yes
42-10500677307,420 ftMay 1994Yes
42-10500681347,900 ftJul 1982Yes
42-10500685357,396 ftOct 1994Yes
42-10500686368,418 ftMay 1986Yes
42-105006538
42-10500657107,452 ft
42-1050066619
42-1050066720
42-10500680337,493 ft
42-10500659127,512 ftMay 2017
42-10530952377,539 ftMay 2013Yes
42-1050064757,360 ftJun 2011
42-10500660137,119 ftAug 2004
42-10538294407,512 ftJun 2004
42-10500662157,004 ftMay 2004
42-10500670237,416 ftJul 1994
42-10500669227,413 ftApr 1994Jun 2014Yes
42-10500663167,422 ftApr 1994
42-10534893398,330 ftDec 1993Jul 2014Yes
42-10500675288,375 ftNov 1993Jan 2019Yes
42-10500671247,654 ftDec 1988Jan 1994Yes

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 2026546533106.413.05$59,723
Apr 202653379798.932.87$55,017
Mar 202655389789.753.15$52,457
Feb 2026498063.503.75$31,623
Jan 202655447359.138.00$36,541
Dec 202571889056.664.41$44,610
Nov 202558474358.593.93$37,134
Oct 202538065159.383.30$24,716
Sep 20255471,05862.743.08$37,574
Aug 202535177563.933.01$24,776
Jul 202535673266.743.32$26,186
Jun 20253491,18766.483.13$26,915
May 202570482560.553.23$45,294
Apr 20255151,09362.363.54$35,988
Mar 202501,15767.704.27$4,938
Feb 202516862270.884.34$14,608
Jan 202550954374.324.28$40,152
Dec 202451968368.993.12$37,938
Nov 202431788669.052.20$23,837
Oct 20246921,15071.372.28$52,012
Sep 20243471,18269.612.36$26,949
Aug 20240075.632.06$0
Jul 20248511,46979.932.15$71,174
Jun 20246991,21178.082.63$57,768
May 202488321,51478.812.20$116,886
Apr 20247001,45084.451.66$61,521
Mar 20248201,50980.301.55$68,178
Feb 20248781,41476.091.78$69,329
Jan 20245171,34173.023.30$42,174
Dec 20237001,31371.262.61$53,310
Nov 20233491,32677.892.81$30,906
Oct 202317717885.443.09$15,672
Sep 20231,0421,22389.042.74$96,125
Aug 20231,2101,46480.522.67$101,342
Jul 20235251,17974.852.64$42,411
Jun 202370488768.962.26$50,551
May 20231,0531,39570.622.23$77,470
Apr 20237001,12078.122.24$57,190
Mar 20238741,61872.852.39$67,543
Feb 20238762,40975.112.47$71,736
Jan 20238832,94576.533.39$77,553
Dec 20229563,70176.415.73$94,251
Nov 20225073,63485.005.65$63,613
Oct 202217633287.185.86$17,290
Sep 20221751,14884.888.16$24,226
Aug 20226922,36294.529.13$86,966
Jul 20223421,793101.587.54$48,263
Jun 20225182,467115.097.98$79,296
May 2022857775109.378.43$100,266
Apr 202216826104.226.84$17,687
Mar 20221740108.885.08$18,945
Feb 2022507091.054.86$46,162
Jan 2022516081.844.54$42,229
Dec 2021331071.323.90$23,607
Nov 2021340077.435.24$26,326
Oct 20210079.795.71$0
Sep 2021516069.865.35$36,048
Aug 2021178066.024.22$11,752
Jul 20210070.783.98$0
Jun 20210069.493.38$0
May 2021170063.483.02$10,792
Apr 2021174060.362.76$10,503
Mar 2021346961.302.72$21,234
Feb 2021167057.805.55$9,653
Jan 20210050.412.81$0
Dec 20200044.642.68$0
Nov 202007838.772.71$211
Oct 2020011536.972.48$285
Sep 202017215037.091.99$6,678
Aug 202003639.982.39$86
Jul 20200138.371.83$2
Jun 20200134.901.69$2
May 20200016.921.81$0
Apr 20200014.751.80$0
Mar 20200030.341.86$0
Feb 20200049.881.98$0
Jan 20201756057.252.09$10,144
Dec 2019529059.012.30$31,216
Nov 20190255.302.75$6
Oct 201927421153.472.42$15,161
Sep 201904155.052.66$109
Aug 20190953.112.30$21
Jul 2019317056.272.46$17,838
Jun 20190052.782.49$0
May 2019243058.482.74$14,211
Apr 20190062.632.75$0
Mar 2019161056.803.06$9,145
Feb 2019641050.852.79$32,595
Jan 2019141046.033.23$6,490
Dec 20180046.594.19$0
Nov 20180652.934.24$25
Oct 2018133461.443.40$8,185
Sep 20180059.543.11$0
Aug 201802959.403.07$89
Jul 20181363965.142.93$8,973
Jun 201801160.183.08$34
May 201801165.382.90$32
Apr 20182742063.842.90$17,550
Mar 2018405461.222.79$24,805
Feb 201801461.782.77$39
Jan 201801362.874.01$52
Dec 2017013857.272.92$403
Nov 201717813855.423.12$10,295
Oct 201713813849.292.98$7,214
Sep 20172382947.523.09$11,399
Aug 201736316945.373.00$16,977
Jul 2017010143.873.09$312
Jun 20171218442.493.09$5,401
May 20172437745.373.26$11,276
Apr 201711726147.933.21$6,446
Mar 2017364446.772.98$17,036
Feb 2017365050.452.95$18,414
Jan 2017185049.413.42$9,141
Dec 20160048.763.72$0
Nov 20163591942.492.64$15,304
Oct 20163623546.193.09$16,829
Sep 20163693541.553.10$15,440
Aug 2016038841.442.92$1,135
Jul 20161,0801,19041.622.92$48,430
Jun 20161,2581,57845.352.69$61,289
May 20161,4442,48542.521.99$66,347
Apr 20167242,16036.561.99$30,770
Mar 20161,4182,31633.011.79$50,963
Feb 20161,0621,49226.472.06$31,190
Jan 20161,0742,18027.352.36$34,528
Dec 20151,4162,09532.362.00$50,015
Nov 20151,4143,09638.792.17$61,559
Oct 20151,9853,73243.552.43$95,503
Sep 20151,6073,87842.992.76$79,782
Aug 20152,4554,08440.162.87$110,324
Jul 20153,0094,78248.152.95$158,967
Jun 20152,1444,62356.152.88$133,713
May 20151,9313,46355.212.96$116,845
Apr 20151,9632,90849.822.71$105,667
Mar 20152,1052,75242.892.93$98,360
Feb 20151,4323,41044.662.98$74,102
Jan 20151,05563543.433.10$47,788
Dec 201436134354.693.59$20,975
Nov 20145201670.464.25$36,707
Oct 20147142,33978.303.90$65,031
Sep 20141,5913,24286.164.05$150,196
Aug 20142,2033,82389.394.04$212,352
Jul 20142,2954,12596.564.18$238,846
Jun 20141,7823,95298.164.74$193,641
May 20142,4844,05094.734.73$254,452
Apr 20147053,09495.944.81$82,517
Mar 20141,9483,79395.895.06$205,974
Feb 20142,5043,25397.406.19$264,032
Jan 20142,1413,94790.404.86$212,732
Dec 20132,4824,78191.824.35$248,716
Nov 20132,8475,00488.853.74$271,662
Oct 20133,3595,40697.423.78$347,665
Sep 20132,6425,148104.113.72$294,198
Aug 20132,4774,205104.253.52$273,040
Jul 20133,1705,754102.523.72$346,380
Jun 20132,7583,36794.403.93$273,599
May 20133,5456,07194.834.15$361,361
Apr 20132,8014,17893.964.28$281,075
Mar 20134,2414,34693.623.91$414,048
Feb 20133,7015,25691.233.42$355,617
Jan 20134,6675,82391.603.42$447,411
Dec 20124,2795,95086.773.42$391,639
Nov 20126,0436,64386.953.62$549,519
Oct 20125,8737,77389.383.40$551,354
Sep 20124,1044,13294.672.92$400,585
Aug 20124,8154,89792.662.91$460,399
Jul 20123,9014,06085.133.02$344,357
Jun 20121,0694,23279.822.52$95,988
May 20122,5233,19091.612.49$239,070
Apr 20123,5745,041101.652.00$373,363
Mar 20124,0856,541105.052.22$443,664
Feb 20122,8654,461101.102.57$301,117
Jan 20124,9025,46498.092.73$495,776
Dec 20114,7096,96396.873.24$478,719
Nov 20116,3677,68395.723.31$634,890
Oct 20115,6797,98284.983.65$511,724
Sep 20114,6726,09483.623.99$414,962
Aug 20116,1015,91683.404.15$533,371
Jul 20115,5805,14894.144.52$548,556
Jun 20111,7602,81492.904.64$176,561
May 20111,6063,04698.134.40$171,014
Apr 20111,4333,562105.964.33$167,276
Mar 20111,2552,87096.364.06$132,576
Feb 20111,2642,85785.644.18$120,191
Jan 20111,7673,53586.504.59$169,067
Dec 20101,9443,62785.734.35$182,428
Nov 20101,7724,02080.843.80$158,506
Oct 20101,7814,11978.103.51$153,549
Sep 20101,7234,02372.633.98$141,151
Aug 20101,9234,13373.684.42$159,952
Jul 20102,0974,23372.554.74$172,187
Jun 20101,0553,11470.364.91$89,521
May 20103,4793,18471.124.24$260,911
Apr 20101,7783,98981.694.12$161,690
Mar 20102,4764,29878.394.39$212,956
Feb 20101,4383,30273.585.44$123,779
Jan 20101,4172,74374.365.96$121,728
Dec 20091,7933,74071.445.48$148,601
Nov 20092,3013,88074.593.75$186,187
Oct 20092,1323,97672.544.11$170,998
Sep 20092,1374,46565.543.06$153,743
Aug 20092,1323,95167.423.22$156,456
Jul 20091,7913,92361.133.46$123,075
Jun 20091,7774,38966.163.90$134,661
May 20092,5034,55254.743.93$154,884
Apr 20091,9544,32146.773.59$106,890
Mar 20092,6763,48542.144.06$126,912
Feb 20092,4834,60732.814.63$102,811
Jan 20092,5486,45935.865.37$126,063
Dec 20082,5434,44537.105.98$120,914
Nov 20082,8685,73255.496.86$198,469
Oct 20083,1046,80675.246.92$280,656
Sep 20084,1946,459101.767.88$477,660
Aug 20082,8894,791114.228.48$370,624
Jul 20081781,586131.0811.39$41,396
Jun 20085111,400131.3313.03$85,355
May 20083471,629123.1711.57$61,595
Apr 20083530110.3110.45$38,939
Mar 20083520101.909.66$35,869
Feb 20080092.538.77$0
Jan 20080090.388.21$0
Dec 2007177088.337.30$15,634
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 2007175058.747.85$10,280
Apr 20070059.617.81$0
Mar 20070056.927.30$0
Feb 2007183055.108.22$10,083
Jan 20070050.306.73$0
Dec 20060056.656.92$0
Nov 2006345054.207.62$18,699
Oct 20060054.906.01$0
Sep 20060060.085.04$0
Aug 20060068.717.34$0
Jul 20060069.376.34$0
Jun 20060066.286.38$0
May 20060066.016.42$0
Apr 20060064.397.36$0
Mar 20060056.707.08$0
Feb 20061,23591957.597.75$78,247
Jan 20061,0641,82160.598.93$80,735
Dec 200536365854.9413.42$28,771
Nov 20057321,33154.6910.59$54,126
Oct 200501,37658.3413.80$18,983
Sep 200569635361.4512.08$47,033
Aug 20052,0932,19161.519.80$150,205
Jul 20051,3702,07055.697.84$92,532
Jun 20051,1902,62052.337.38$81,611
May 200582411845.226.65$38,046
Apr 20051,7103,04049.207.36$106,508
Mar 20052,2112,98650.377.15$132,733
Feb 20052,0843,73845.226.31$117,832
Jan 20051,7843,73843.166.32$100,630
Dec 20042,0134,10639.866.75$107,958
Nov 20042,4285,37845.286.33$143,985
Oct 20042,7396,51649.706.52$178,581
Sep 20043,6338,12743.245.28$200,033
Aug 20043,74312,76442.375.55$229,440
Jul 20044,25911,03638.286.08$230,180
Jun 200410,29714,95436.106.43$467,921
May 20042,4191,57037.486.49$100,861
Apr 20042,2781,29534.475.86$86,109
Mar 200436165734.365.53$16,037
Feb 200435074532.455.51$15,462
Jan 200475080932.036.30$29,119
Dec 200338970430.266.30$16,207
Nov 200336796528.804.60$15,004
Oct 200338042828.174.76$12,742
Sep 200334653926.314.75$11,663
Aug 200336941229.765.13$13,095
Jul 200337041029.415.17$13,002
Jun 200337048328.565.98$13,457
May 200375761226.595.97$23,784
Apr 20031,10669226.675.41$33,239
Mar 20033675331.146.10$11,751
Feb 2003026233.487.93$2,077
Jan 200334260230.315.58$13,726
Dec 20023777726.914.85$10,519
Nov 20023843724.664.14$9,623
Oct 200237743726.464.23$11,824
Sep 2002377027.443.64$10,345
Aug 200274523025.963.16$20,068
Jul 200275241224.583.06$19,746
Jun 200275247723.733.34$19,437
May 200275439024.663.58$19,991
Apr 200237638023.653.51$10,227
Mar 200237435922.003.10$9,342
Feb 200271511618.222.38$13,303
Jan 200275958817.172.38$14,429
Dec 200175149016.932.36$13,873
Nov 200175567518.072.41$15,267
Oct 200175462319.782.53$16,490
Sep 200175752024.262.25$19,536
Aug 200176984024.873.05$21,690
Jul 200175068523.933.20$20,138
Jun 200175558724.563.82$20,788
May 20011,11982025.524.31$32,089
Apr 20011,14390724.685.34$33,048
Mar 200178196524.545.38$24,354
Feb 20011,14684627.755.77$36,680
Jan 20011,13699227.478.40$39,537
Dec 200076479226.889.12$27,761
Nov 200075579932.215.66$28,839
Oct 20001,13487831.235.15$39,933
Sep 20001,5161,29531.875.19$55,031
Aug 20001,1371,17629.644.54$39,041
Jul 200038252728.534.09$13,054
Jun 20001,1511,04629.304.40$38,324
May 20001,1471,14627.263.68$35,484
Apr 2000063224.513.12$1,969
Mar 200055517828.422.86$16,282
Feb 20001,1251,12427.622.73$34,137
Jan 20001,55693825.272.48$41,647
Dec 199939550024.282.42$10,802
Nov 199976889123.192.43$19,979
Oct 1999074320.982.80$2,083
Sep 19991,09879021.752.62$25,950
Aug 199972275119.262.88$16,065
Jul 19993741,17917.892.37$9,488
Jun 199938367415.942.36$7,697
May 199938275415.792.32$7,782
Apr 199938246615.102.21$6,797
Mar 199938011112.471.84$4,943
Feb 19993741999.981.82$4,094
Jan 199976522110.381.90$8,361
Dec 199801,0569.201.77$1,873
Nov 19981,1491,58510.892.19$15,977
Oct 199894194312.421.97$13,544
Sep 199857079512.592.08$8,832
Aug 199837970511.301.91$5,627
Jul 19985691,88811.742.24$10,904
Jun 19983772,15111.242.24$9,050
May 19987541,63012.622.21$13,112
Apr 199837410,07613.042.51$30,121
Mar 19981,9259,89912.802.31$47,501
Feb 19981,3508,89913.952.30$39,292
Jan 19983,4349,99914.702.15$72,026
Dec 19973,05110,30316.322.41$74,634
Nov 19972,2624,65718.193.09$55,528
Oct 19972,6695,00519.253.15$67,143
Sep 19972,6554,91117.742.95$61,611
Aug 19973,3805,38117.862.55$74,114
Jul 19973,5356,09617.582.25$75,843
Jun 19972,8264,66117.242.26$59,241
May 19972,8135,04318.972.31$65,004
Apr 19973,6005,14617.882.08$75,086
Mar 19973,9635,58618.951.94$85,931
Feb 19974,2185,09120.492.21$97,657
Jan 19974,3955,67023.483.54$123,265
Dec 19964,0255,14923.32$93,863
Nov 19964,5695,91321.97$100,381
Oct 19965,3237,92023.31$124,079
Sep 19965,2527,35222.22$116,699
Aug 19965,0717,13720.26$102,738
Jul 19964,8506,54619.55$94,818
Jun 19963,8744,28218.73$72,560
May 19966,8327,99919.43$132,746
Apr 19965,8007,79421.51$124,758
Mar 19967,9639,15519.38$154,323
Feb 19968,1357,55616.98$138,132
Jan 19969,4147,52617.07$160,697
Dec 19956,9277,55217.19$119,075
Nov 19954,0447,09316.00$64,704
Oct 19955,0179,16215.43$77,412
Sep 19954,4519,65416.18$72,017
Aug 19953,9549,30815.92$62,948
Jul 19953,4769,50515.24$52,974
Jun 19956,39410,98616.41$104,926
May 19955,2838,90417.56$92,769
Apr 19956,54511,83217.73$116,043
Mar 19958,37913,24216.44$137,751
Feb 19957,16911,46616.58$118,862
Jan 19957,02713,83715.92$111,870
Dec 199410,32319,96015.03$155,155
Nov 19948,13316,90215.90$129,315
Oct 199412,09019,95015.58$188,362
Sep 199413,76820,71315.29$210,513
Aug 199413,01219,32016.13$209,884
Jul 199411,06716,75317.56$194,337
Jun 19948,20814,80817.09$140,275
May 19949,42015,38115.88$149,590
Apr 199410,11213,73014.14$142,984
Mar 19949,32112,00612.46$116,140
Feb 199410,46210,37212.50$130,775
Jan 19945,1863,87412.66$65,655
Dec 19931,8081,44712.33$22,293
Nov 19932,6702,04614.49$38,688
Oct 19933,3721,32315.85$53,446
Sep 1993013515.03$0
Aug 19930015.66$0
Jul 1993163115.46$2,520
Jun 1993180116.79$3,022
May 1993176117.68$3,112
Apr 1993340118.05$6,137
Mar 19930118.14$0
Feb 19930017.90$0
Jan 19930016.93$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                  546 bbl  × $106.41 =    $58,100
Casinghead gas       533 Mcf  × $  3.05 =     $1,623

────────────────────────────────────────────────────
Month total                                  $59,723

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/435 is the state's own key, not one this site invented.