SHALLER, FRANK J. -F-

Operated by MMGL TXPH, LLC (P-5 101619) in the CANADIAN, SE (DOUGLAS) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Gas lease lease 99817District 10Field 15217250NGPA filingCondensateGasSaveExport
Value, all time
$2.5 M
Jan 1993 – May 2026
Value, last 12 filed months
$17 k
at the published price for each month
Months reported
401
no gaps in the span
Streams
2
condensate, 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 419 leases and 430 wells, and the rule below applies to all of them.

Discovered
1972-08-01
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 160 acres.

The Commission's schedule remark for this field reads: COMBINED W/HUMPHREYS (DOUGLAS) 9/81 CARRIED AS CANADIAN,SE (DOUGLA

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
NGPA1none

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
CondensateDisposition3,880 bbl$159,207
GasProduction680,793 Mcf$2,323,671
Total$2,482,879

152,234 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 35.8762, -100.3018. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.0 miles.

35.87619, -100.30179 · 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
7,550 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 7,550 ft.

Completions filed
Apr 1982
1 of 1 wells

1 well

42-2113146731537,550 ftApr 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 20260369106.413.05$1,124
Apr 2026035998.932.87$1,030
Mar 2026037389.753.15$1,175
Feb 2026034863.503.75$1,305
Jan 2026035259.138.00$2,815
Dec 2025037056.664.41$1,633
Nov 2025036958.593.93$1,449
Oct 2025040659.383.30$1,342
Sep 2025037762.743.08$1,160
Aug 2025040563.933.01$1,221
Jul 2025046866.743.32$1,552
Jun 2025035066.483.13$1,095
May 2025039460.553.23$1,274
Apr 2025038262.363.54$1,353
Mar 2025039767.704.27$1,695
Feb 2025037770.884.34$1,637
Jan 2025034274.324.28$1,463
Dec 2024039368.993.12$1,227
Nov 2024037069.052.20$813
Oct 2024038771.372.28$883
Sep 2024038669.612.36$913
Aug 2024040375.632.06$832
Jul 2024037379.932.15$801
Jun 2024036378.082.63$956
May 2024040078.812.20$879
Apr 2024036084.451.66$597
Mar 2024036380.301.55$561
Feb 2024031876.091.78$567
Jan 2024034573.023.30$1,138
Dec 2023038471.262.61$1,003
Nov 2023035577.892.81$997
Oct 20234738285.443.09$5,195
Sep 2023040289.042.74$1,099
Aug 2023042380.522.67$1,131
Jul 2023048674.852.64$1,284
Jun 2023043568.962.26$982
May 2023047670.622.23$1,060
Apr 2023045078.122.24$1,007
Mar 2023048772.852.39$1,165
Feb 2023038875.112.47$957
Jan 2023043776.533.39$1,480
Dec 2022047476.415.73$2,716
Nov 2022042685.005.65$2,405
Oct 2022043987.185.86$2,574
Sep 2022045084.888.16$3,674
Aug 2022069294.529.13$6,316
Jul 20220336101.587.54$2,534
Jun 20220373115.097.98$2,976
May 20220393109.378.43$3,314
Apr 20220406104.226.84$2,776
Mar 20220424108.885.08$2,152
Feb 2022038091.054.86$1,846
Jan 2022043381.844.54$1,965
Dec 2021042571.323.90$1,657
Nov 2021042177.435.24$2,205
Oct 2021044079.795.71$2,514
Sep 2021043869.865.35$2,344
Aug 2021045366.024.22$1,912
Jul 2021048370.783.98$1,923
Jun 2021047569.493.38$1,606
May 2021052163.483.02$1,572
Apr 2021046760.362.76$1,288
Mar 2021049061.302.72$1,331
Feb 2021043757.805.55$2,424
Jan 2021047850.412.81$1,343
Dec 2020053644.642.68$1,434
Nov 2020053338.772.71$1,443
Oct 2020058636.972.48$1,452
Sep 2020058837.091.99$1,171
Aug 2020063639.982.39$1,517
Jul 2020067838.371.83$1,237
Jun 2020073034.901.69$1,234
May 2020086816.921.81$1,575
Apr 2020082414.751.80$1,487
Mar 202001,09730.341.86$2,036
Feb 202001,20449.881.98$2,385
Jan 202001,32857.252.09$2,782
Dec 201901,34959.012.30$3,109
Nov 20191911,36555.302.75$14,317
Oct 201901,49553.472.42$3,616
Sep 201901,59855.052.66$4,246
Aug 201901,70953.112.30$3,938
Jul 201901,79256.272.46$4,408
Jun 201901,70252.782.49$4,240
May 201901,47258.482.74$4,034
Apr 201901,45862.632.75$4,011
Mar 201901,27356.803.06$3,898
Feb 201901,10050.852.79$3,071
Jan 201901,11846.033.23$3,609
Dec 201801,05546.594.19$4,416
Nov 201801,10252.934.24$4,669
Oct 201831,20661.443.40$4,282
Sep 201801,20959.543.11$3,758
Aug 201801,27659.403.07$3,913
Jul 201801,32465.142.93$3,882
Jun 201801,18460.183.08$3,643
May 201801,06365.382.90$3,084
Apr 201801,02063.842.90$2,959
Mar 201801,06561.222.79$2,968
Feb 2018054561.782.77$1,508
Jan 2018072762.874.01$2,915
Dec 2017092757.272.92$2,708
Nov 201701,16855.423.12$3,642
Oct 201701,29649.292.98$3,867
Sep 201701,32747.523.09$4,097
Aug 201701,21545.373.00$3,650
Jul 201701,26243.873.09$3,896
Jun 2017088542.493.09$2,732
May 2017089345.373.26$2,914
Apr 2017076347.933.21$2,450
Mar 2017078646.772.98$2,345
Feb 2017071250.452.95$2,102
Jan 2017076949.413.42$2,629
Dec 2016080048.763.72$2,978
Nov 201617676442.492.64$9,499
Oct 2016078646.193.09$2,429
Sep 2016082441.553.10$2,555
Aug 2016091441.442.92$2,673
Jul 2016095741.622.92$2,799
Jun 2016099945.352.69$2,683
May 201601,04242.521.99$2,075
Apr 2016086636.561.99$1,724
Mar 201601,11833.011.79$2,006
Feb 201601,09326.472.06$2,256
Jan 201601,30827.352.36$3,093
Dec 201501,67332.362.00$3,348
Nov 201501,51638.792.17$3,286
Oct 201501,84843.552.43$4,484
Sep 201501,82142.992.76$5,023
Aug 201501,93840.162.87$5,567
Jul 201502,04948.152.95$6,034
Jun 20153752,05756.152.88$26,986
May 201502,09955.212.96$6,203
Apr 201501,88149.822.71$5,091
Mar 201501,84942.892.93$5,426
Feb 201501,81244.662.98$5,393
Jan 201501,87943.433.10$5,826
Dec 201401,55954.693.59$5,599
Nov 201401,51270.464.25$6,429
Oct 201401,80078.303.90$7,022
Sep 201401,50586.164.05$6,088
Aug 201401,66289.394.04$6,706
Jul 201401,62096.564.18$6,771
Jun 20141761,82198.164.74$25,902
May 2014089694.734.73$4,235
Apr 201401,71695.944.81$8,252
Mar 201401,82095.895.06$9,203
Feb 201401,89897.406.19$11,752
Jan 201402,01690.404.86$9,799
Dec 201301,49891.824.35$6,523
Nov 201301,81088.853.74$6,766
Oct 201301,24297.423.78$4,694
Sep 20130914104.113.72$3,398
Aug 201301,470104.253.52$5,178
Jul 201301,542102.523.72$5,733
Jun 201301,33394.403.93$5,243
May 201301,56494.834.15$6,489
Apr 201301,61393.964.28$6,908
Mar 201301,62793.623.91$6,366
Feb 201301,43191.233.42$4,894
Jan 201301,48491.603.42$5,075
Dec 201201,47786.773.42$5,052
Nov 201201,78586.953.62$6,471
Oct 20121912,00889.383.40$23,898
Sep 201201,40294.672.92$4,092
Aug 201202,23292.662.91$6,491
Jul 201202,01585.133.02$6,087
Jun 201202,22579.822.52$5,605
May 201201,73791.612.49$4,322
Apr 201201,206101.652.00$2,408
Mar 201201,456105.052.22$3,235
Feb 201201,275101.102.57$3,277
Jan 201201,34198.092.73$3,666
Dec 201101,20096.873.24$3,888
Nov 201101,10495.723.31$3,656
Oct 2011081884.983.65$2,985
Sep 20110383.623.99$12
Aug 201101,08083.404.15$4,481
Jul 2011092294.144.52$4,165
Jun 2011038792.904.64$1,796
May 201101,01898.134.40$4,484
Apr 201101,005105.964.33$4,355
Mar 20110296.364.06$8
Feb 2011066985.644.18$2,796
Jan 2011059186.504.59$2,712
Dec 201001,09185.734.35$4,743
Nov 201001,73580.843.80$6,585
Oct 201001,70878.103.51$5,993
Sep 201002,17772.633.98$8,663
Aug 20101941,68473.684.42$21,736
Jul 2010079972.554.74$3,784
Jun 201001,89070.364.91$9,281
May 201002,06771.124.24$8,754
Apr 201002,20281.694.12$9,078
Mar 201001,84878.394.39$8,110
Feb 201001,48773.585.44$8,093
Jan 201001,77374.365.96$10,574
Dec 200902,46971.445.48$13,539
Nov 200902,07374.593.75$7,777
Oct 200902,32672.544.11$9,560
Sep 200901,61865.543.06$4,959
Aug 200902,51067.423.22$8,078
Jul 200902,31061.133.46$8,003
Jun 200901,82366.163.90$7,101
May 200901,99254.743.93$7,820
Apr 200902,08046.773.59$7,462
Mar 200901,50842.144.06$6,121
Feb 20091871,42732.814.63$12,747
Jan 200901,55635.865.37$8,357
Dec 200801,41337.105.98$8,446
Nov 2008083455.496.86$5,722
Oct 200801,30775.246.92$9,047
Sep 20080420101.767.88$3,308
Aug 200801,449114.228.48$12,292
Jul 200802,338131.0811.39$26,628
Jun 20080219131.3313.03$2,854
May 200801,599123.1711.57$18,507
Apr 200801,782110.3110.45$18,631
Mar 200801,699101.909.66$16,419
Feb 200801,64092.538.77$14,384
Jan 200801,88790.388.21$15,484
Dec 200702,03888.337.30$14,881
Nov 200702,22591.677.29$16,224
Oct 200702,16982.856.92$15,014
Sep 200702,54775.846.24$15,904
Aug 200701,99669.066.39$12,750
Jul 20071331370.906.39$9,513
Jun 200701,06862.007.55$8,062
May 200702,25158.747.85$17,662
Apr 200702,21959.617.81$17,320
Mar 200702,29356.927.30$16,743
Feb 200702,20055.108.22$18,075
Jan 200701,54150.306.73$10,366
Dec 200602,68356.656.92$18,562
Nov 200602,47354.207.62$18,838
Oct 200602,27554.906.01$13,681
Sep 200601,88660.085.04$9,500
Aug 20061052,08668.717.34$22,526
Jul 200601,93769.376.34$12,286
Jun 200601,59366.286.38$10,170
May 200601,31266.016.42$8,430
Apr 200601,99364.397.36$14,669
Mar 20061582,06356.707.08$23,571
Feb 200601,84857.597.75$14,324
Jan 200602,28460.598.93$20,404
Dec 200502,22554.9413.42$29,849
Nov 200502,44554.6910.59$25,889
Oct 200502,45558.3413.80$33,869
Sep 200502,62561.4512.08$31,707
Aug 200502,76761.519.80$27,108
Jul 200502,72655.697.84$21,382
Jun 200502,66952.337.38$19,700
May 200502,61145.226.65$17,366
Apr 200502,75649.207.36$20,285
Mar 200502,92750.377.15$20,942
Feb 20051812,41345.226.31$23,415
Jan 200502,76443.166.32$17,475
Dec 200403,31739.866.75$22,393
Nov 200402,73545.286.33$17,314
Oct 200402,85049.706.52$18,568
Sep 200402,76943.245.28$14,631
Aug 200403,03442.375.55$16,841
Jul 200402,90238.286.08$17,656
Jun 200402,73036.106.43$17,562
May 200402,87837.486.49$18,691
Apr 200402,57234.475.86$15,068
Mar 200402,65534.365.53$14,683
Feb 200402,11832.455.51$11,669
Jan 200402,17132.036.30$13,677
Dec 200301,88230.266.30$11,860
Nov 200301,64728.804.60$7,568
Oct 200301,46428.174.76$6,968
Sep 200301,30426.314.75$6,193
Aug 200301,34229.765.13$6,884
Jul 200301,34429.415.17$6,950
Jun 200301,28428.565.98$7,682
May 200301,29026.595.97$7,705
Apr 200301,32826.675.41$7,181
Mar 200301,50531.146.10$9,175
Feb 200301,05233.487.93$8,338
Jan 200301,16530.315.58$6,503
Dec 200201,22526.914.85$5,946
Nov 200201,36324.664.14$5,639
Oct 200201,47526.464.23$6,238
Sep 200201,48427.443.64$5,395
Aug 200201,49825.963.16$4,740
Jul 200201,55724.583.06$4,767
Jun 20021891,47023.733.34$9,392
May 200201,53424.663.58$5,498
Apr 200201,51323.653.51$5,314
Mar 200201,48722.003.10$4,614
Feb 200201,23118.222.38$2,924
Jan 200201,84017.172.38$4,371
Dec 200101,87316.932.36$4,429
Nov 200101,92918.072.41$4,640
Oct 200101,95919.782.53$4,954
Sep 200101,88024.262.25$4,232
Aug 200101,94224.873.05$5,929
Jul 200101,94523.933.20$6,218
Jun 200101,90524.563.82$7,285
May 200102,33325.524.31$10,049
Apr 200101,67524.685.34$8,937
Mar 200101,78924.545.38$9,618
Feb 200101,59727.755.77$9,210
Jan 200101,71327.478.40$14,387
Dec 200001,81226.889.12$16,530
Nov 200001,70832.215.66$9,664
Oct 200002,11131.235.15$10,862
Sep 200002,32331.875.19$12,048
Aug 200002,40729.644.54$10,930
Jul 200002,46528.534.09$10,081
Jun 200002,41429.304.40$10,615
May 200002,45927.263.68$9,049
Apr 200002,34624.513.12$7,310
Mar 2000982,06328.422.86$8,685
Feb 200002,26427.622.73$6,173
Jan 200002,60925.272.48$6,472
Dec 199902,54024.282.42$6,156
Nov 199902,59823.192.43$6,324
Oct 199902,37020.982.80$6,645
Sep 199902,38221.752.62$6,238
Aug 1999562,64219.262.88$8,676
Jul 1999422,64117.892.37$7,017
Jun 199902,36315.942.36$5,582
May 199901,99215.792.32$4,623
Apr 199902,49915.102.21$5,518
Mar 199902,43812.471.84$4,482
Feb 19992011,9129.981.82$5,482
Jan 1999372,60910.381.90$5,341
Dec 19981102,7929.201.77$5,963
Nov 199802,91010.892.19$6,360
Oct 199803,10512.421.97$6,114
Sep 199803,03012.592.08$6,310
Aug 199802,45611.301.91$4,684
Jul 199802,98111.742.24$6,669
Jun 19982091,97611.242.24$6,770
May 199802,61012.622.21$5,759
Apr 199802,60113.042.51$6,516
Mar 199802,76612.802.31$6,388
Feb 199802,76013.952.30$6,346
Jan 199803,06014.702.15$6,594
Dec 199703,27616.322.41$7,899
Nov 199703,58318.193.09$11,065
Oct 199703,48619.253.15$10,980
Sep 199701,48217.742.95$4,379
Aug 199701,38417.862.55$3,536
Jul 199701,69317.582.25$3,804
Jun 199702,85717.242.26$6,449
May 199702,59118.972.31$5,981
Apr 199703,06417.882.08$6,382
Mar 199703,12418.951.94$6,058
Feb 199702,45620.492.21$5,418
Jan 199703,09823.483.54$10,966
Dec 199602,80023.32$0
Nov 199603,18221.97$0
Oct 199603,13023.31$0
Sep 199603,02822.22$0
Aug 199603,22820.26$0
Jul 199603,09419.55$0
Jun 199603,09918.73$0
May 199603,57719.43$0
Apr 199603,17821.51$0
Mar 199603,08319.38$0
Feb 199602,68016.98$0
Jan 199602,77217.07$0
Dec 199503,09517.19$0
Nov 199503,21016.00$0
Oct 199503,27915.43$0
Sep 199502,96616.18$0
Aug 199502,98715.92$0
Jul 19952043,07915.24$3,109
Jun 199502,98116.41$0
May 199503,44017.56$0
Apr 199503,20317.73$0
Mar 199502,90616.44$0
Feb 199502,49116.58$0
Jan 199503,11015.92$0
Dec 199403,52315.03$0
Nov 199403,17515.90$0
Oct 19941673,54415.58$2,602
Sep 199403,31115.29$0
Aug 199403,35616.13$0
Jul 199403,32317.56$0
Jun 199403,49717.09$0
May 199403,46715.88$0
Apr 199403,19314.14$0
Mar 199403,69912.46$0
Feb 19942033,01812.50$2,538
Jan 199403,87412.66$0
Dec 199343,41712.33$49
Nov 1993433,46214.49$623
Oct 199333,48015.85$48
Sep 199303,03815.03$0
Aug 199303,21915.66$0
Jul 199303,18115.46$0
Jun 199303,15016.79$0
May 199303,07317.68$0
Apr 199303,17518.05$0
Mar 199303,23218.14$0
Feb 19931972,74817.90$3,526
Jan 199302,48116.93$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
Condensate             0 bbl  × $106.41 =         $0
Gas                  369 Mcf  × $  3.05 =     $1,124

────────────────────────────────────────────────────
Month total                                   $1,124

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/G/99817 is the state's own key, not one this site invented.