CLARK

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

Gas lease lease 71851District 10Field 40311200NGPA filingCondensateGasSaveExport
Value, all time
$3.0 M
Jan 1993 – May 2026
Value, last 12 filed months
$27 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 712 leases and 714 wells, and the rule below applies to all of them.

Discovered
1964-01-29
as the register files it
Field class
Oil and gas
the register's own label
Between wells
467 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 2008-10-07.

The Commission's schedule remark for this field reads: FIELD

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
CondensateDisposition2,092 bbl$42,770
GasProduction900,696 Mcf$2,938,732
Total$2,981,502

207,640 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 35.7623, -100.3982. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.0 miles.

35.76233, -100.39817 · 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
11,070 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 11,070 ft.

Completions filed
Jun 1977
1 of 1 wells

1 well

42-21130709411,070 ftJun 1977

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 20260497106.413.05$1,514
Apr 2026052298.932.87$1,498
Mar 2026050889.753.15$1,600
Feb 2026050663.503.75$1,898
Jan 2026052859.138.00$4,223
Dec 2025061056.664.41$2,692
Nov 2025061758.593.93$2,423
Oct 2025068659.383.30$2,267
Sep 2025065462.743.08$2,012
Aug 2025071663.933.01$2,159
Jul 2025072666.743.32$2,407
Jun 2025071466.483.13$2,234
May 2025073060.553.23$2,360
Apr 2025070462.363.54$2,494
Mar 2025070967.704.27$3,026
Feb 2025063070.884.34$2,735
Jan 2025063574.324.28$2,717
Dec 2024071368.993.12$2,226
Nov 2024072669.052.20$1,596
Oct 2024074371.372.28$1,695
Sep 2024070069.612.36$1,655
Aug 2024077975.632.06$1,608
Jul 2024072979.932.15$1,565
Jun 2024077578.082.63$2,041
May 2024080878.812.20$1,776
Apr 2024078084.451.66$1,294
Mar 2024079580.301.55$1,228
Feb 2024072376.091.78$1,290
Jan 2024066873.023.30$2,203
Dec 2023080071.262.61$2,089
Nov 2023079977.892.81$2,243
Oct 2023174885.443.09$2,395
Sep 2023074189.042.74$2,027
Aug 2023075280.522.67$2,010
Jul 2023065574.852.64$1,730
Jun 2023073268.962.26$1,653
May 2023079870.622.23$1,777
Apr 2023076778.122.24$1,716
Mar 2023080672.852.39$1,929
Feb 2023067475.112.47$1,662
Jan 2023087476.533.39$2,961
Dec 202201,04576.415.73$5,987
Nov 202201,02885.005.65$5,804
Oct 202201,15887.185.86$6,790
Sep 202201,13684.888.16$9,274
Aug 202201,18794.529.13$10,834
Jul 202201,172101.587.54$8,839
Jun 202201,137115.097.98$9,070
May 202201,172109.378.43$9,884
Apr 202201,132104.226.84$7,740
Mar 202201,259108.885.08$6,391
Feb 2022045391.054.86$2,201
Jan 202201,07181.844.54$4,860
Dec 202101,13171.323.90$4,410
Nov 202101,10377.435.24$5,776
Oct 202101,13779.795.71$6,497
Sep 202101,12569.865.35$6,020
Aug 202101,13566.024.22$4,790
Jul 202101,09270.783.98$4,348
Jun 2021098869.493.38$3,340
May 202101,02163.483.02$3,081
Apr 202101,00560.362.76$2,772
Mar 202101,08461.302.72$2,945
Feb 2021070557.805.55$3,911
Jan 202101,01250.412.81$2,844
Dec 202001,03144.642.68$2,758
Nov 202001,04838.772.71$2,836
Oct 2020097336.972.48$2,412
Sep 2020099437.091.99$1,979
Aug 202001,04439.982.39$2,490
Jul 202001,03838.371.83$1,894
Jun 202001,01834.901.69$1,721
May 202001,03016.921.81$1,869
Apr 2020098914.751.80$1,785
Mar 202001,01630.341.86$1,886
Feb 2020092149.881.98$1,824
Jan 2020099357.252.09$2,080
Dec 2019099259.012.30$2,286
Nov 2019098455.302.75$2,707
Oct 2019098353.472.42$2,377
Sep 2019097855.052.66$2,599
Aug 201901,01153.112.30$2,330
Jul 201901,00956.272.46$2,482
Jun 2019095752.782.49$2,384
May 2019096858.482.74$2,653
Apr 2019099562.632.75$2,737
Mar 201901,06256.803.06$3,252
Feb 2019049550.852.79$1,382
Jan 2019092746.033.23$2,993
Dec 2018095246.594.19$3,985
Nov 2018091852.934.24$3,890
Oct 2018098761.443.40$3,354
Sep 2018097459.543.11$3,027
Aug 201801,00259.403.07$3,073
Jul 201801,01165.142.93$2,964
Jun 201801,00960.183.08$3,105
May 2018097665.382.90$2,831
Apr 201801,00363.842.90$2,910
Mar 201801,07361.222.79$2,990
Feb 2018085661.782.77$2,368
Jan 2018092462.874.01$3,705
Dec 2017095257.272.92$2,781
Nov 2017099955.423.12$3,115
Oct 201701,05649.292.98$3,151
Sep 201701,08047.523.09$3,334
Aug 2017086845.373.00$2,608
Jul 2017094143.873.09$2,905
Jun 2017090742.493.09$2,800
May 2017190845.373.26$3,009
Apr 2017085447.933.21$2,743
Mar 2017088446.772.98$2,638
Feb 2017076050.452.95$2,244
Jan 2017083249.413.42$2,844
Dec 2016089248.763.72$3,321
Nov 2016088742.492.64$2,346
Oct 2016098546.193.09$3,044
Sep 2016090841.553.10$2,815
Aug 2016090441.442.92$2,644
Jul 2016099341.622.92$2,904
Jun 2016090045.352.69$2,417
May 2016088542.521.99$1,762
Apr 2016094136.561.99$1,874
Mar 201601,05733.011.79$1,896
Feb 201601,02826.472.06$2,121
Jan 2016087227.352.36$2,062
Dec 2015098432.362.00$1,969
Nov 2015083638.792.17$1,812
Oct 2015082743.552.43$2,007
Sep 2015093942.992.76$2,590
Aug 2015078140.162.87$2,243
Jul 2015092648.152.95$2,727
Jun 201501,11256.152.88$3,206
May 201501,11255.212.96$3,286
Apr 2015083449.822.71$2,257
Mar 201501,13742.892.93$3,337
Feb 2015096844.662.98$2,881
Jan 201501,13143.433.10$3,507
Dec 201401,26154.693.59$4,529
Nov 20140070.464.25$0
Oct 201401,61878.303.90$6,312
Sep 201401,15486.164.05$4,668
Aug 201401,68489.394.04$6,795
Jul 201401,31296.564.18$5,484
Jun 201401,30298.164.74$6,167
May 201401,44694.734.73$6,835
Apr 201401,38795.944.81$6,670
Mar 201401,40195.895.06$7,085
Feb 201401,28597.406.19$7,957
Jan 201401,37590.404.86$6,683
Dec 201301,33191.824.35$5,796
Nov 201301,11288.853.74$4,157
Oct 201301,43697.423.78$5,427
Sep 201301,576104.113.72$5,859
Aug 201301,482104.253.52$5,221
Jul 201301,378102.523.72$5,123
Jun 201301,28794.403.93$5,062
May 201301,45594.834.15$6,037
Apr 201301,50593.964.28$6,445
Mar 201301,37693.623.91$5,384
Feb 201301,16991.233.42$3,998
Jan 201301,42891.603.42$4,884
Dec 201201,14086.773.42$3,899
Nov 201201,36086.953.62$4,930
Oct 201201,30689.383.40$4,440
Sep 201201,28294.672.92$3,741
Aug 201201,27792.662.91$3,714
Jul 2012090385.133.02$2,728
Jun 201201,54479.822.52$3,889
May 201202,08991.612.49$5,198
Apr 201202,151101.652.00$4,295
Mar 201201,633105.052.22$3,629
Feb 201201,117101.102.57$2,871
Jan 201201,56198.092.73$4,268
Dec 201101,67396.873.24$5,420
Nov 201101,20095.723.31$3,974
Oct 201101,31984.983.65$4,812
Sep 201101,72183.623.99$6,860
Aug 2011097783.404.15$4,054
Jul 201101,52094.144.52$6,866
Jun 201101,71392.904.64$7,948
May 201102,28298.134.40$10,052
Apr 201102,045105.964.33$8,862
Mar 2011096096.364.06$3,895
Feb 2011096085.644.18$4,013
Jan 201101,50686.504.59$6,911
Dec 201001,95085.734.35$8,478
Nov 201001,95180.843.80$7,405
Oct 201001,79678.103.51$6,302
Sep 201001,59972.633.98$6,363
Aug 201001,43873.684.42$6,355
Jul 201001,56272.554.74$7,398
Jun 201001,19970.364.91$5,888
May 201001,13771.124.24$4,815
Apr 201001,20881.694.12$4,980
Mar 201001,27578.394.39$5,596
Feb 201001,32473.585.44$7,206
Jan 201001,39874.365.96$8,338
Dec 200901,55271.445.48$8,511
Nov 200901,33274.593.75$4,997
Oct 200901,83872.544.11$7,555
Sep 200901,70265.543.06$5,216
Aug 200901,74367.423.22$5,610
Jul 200901,24561.133.46$4,313
Jun 200901,29166.163.90$5,028
May 200901,23454.743.93$4,844
Apr 200901,47346.773.59$5,284
Mar 200902,14142.144.06$8,690
Feb 200901,61932.814.63$7,501
Jan 200901,72035.865.37$9,238
Dec 200801,54737.105.98$9,247
Nov 200801,65155.496.86$11,326
Oct 200801,96675.246.92$13,609
Sep 20080380101.767.88$2,993
Aug 200801,630114.228.48$13,827
Jul 200801,710131.0811.39$19,476
Jun 200801,209131.3313.03$15,756
May 200801,874123.1711.57$21,690
Apr 200802,183110.3110.45$22,823
Mar 20080941101.909.66$9,094
Feb 2008044792.538.77$3,920
Jan 200801,65090.388.21$13,539
Dec 200701,83288.337.30$13,377
Nov 200701,64791.677.29$12,009
Oct 200701,86382.856.92$12,896
Sep 200701,74375.846.24$10,884
Aug 200701,54469.066.39$9,863
Jul 200701,94170.906.39$12,399
Jun 200702,00262.007.55$15,112
May 200701,97058.747.85$15,457
Apr 200701,80459.617.81$14,081
Mar 200702,04756.927.30$14,947
Feb 200701,63655.108.22$13,441
Jan 200702,11450.306.73$14,221
Dec 200601,64856.656.92$11,402
Nov 200601,78954.207.62$13,628
Oct 200601,96654.906.01$11,823
Sep 200601,90960.085.04$9,616
Aug 200602,04668.717.34$15,017
Jul 200601,89669.376.34$12,026
Jun 200602,16166.286.38$13,796
May 200602,16166.016.42$13,884
Apr 200602,21364.397.36$16,289
Mar 200602,16256.707.08$15,313
Feb 200602,13157.597.75$16,518
Jan 200602,37160.598.93$21,181
Dec 200502,33954.9413.42$31,379
Nov 200502,36054.6910.59$24,989
Oct 200502,54158.3413.80$35,055
Sep 200502,70961.4512.08$32,722
Aug 200502,91961.519.80$28,597
Jul 200502,79355.697.84$21,907
Jun 20051843,20352.337.38$33,270
May 200503,24345.226.65$21,570
Apr 200503,24749.207.36$23,899
Mar 200503,29150.377.15$23,547
Feb 200503,03745.226.31$19,169
Jan 200503,04943.166.32$19,276
Dec 200403,61039.866.75$24,371
Nov 200402,32045.286.33$14,687
Oct 200402,00249.706.52$13,043
Sep 200402,61043.245.28$13,791
Aug 200403,06242.375.55$16,996
Jul 200402,51838.286.08$15,320
Jun 200402,69636.106.43$17,343
May 200403,01737.486.49$19,594
Apr 200402,94134.475.86$17,230
Mar 200402,78734.365.53$15,413
Feb 200402,93832.455.51$16,187
Jan 200403,08332.036.30$19,422
Dec 200303,07730.266.30$19,390
Nov 200303,03028.804.60$13,923
Oct 200303,01728.174.76$14,360
Sep 200303,02826.314.75$14,381
Aug 200303,39529.765.13$17,415
Jul 200303,42629.415.17$17,715
Jun 200303,35128.565.98$20,049
May 200303,36826.595.97$20,116
Apr 200303,36526.675.41$18,196
Mar 200303,29931.146.10$20,111
Feb 200302,95933.487.93$23,453
Jan 200303,26330.315.58$18,214
Dec 200203,20026.914.85$15,532
Nov 200203,32724.664.14$13,764
Oct 200203,44026.464.23$14,548
Sep 200203,51027.443.64$12,760
Aug 200203,17725.963.16$10,053
Jul 200203,60924.583.06$11,050
Jun 200203,64923.733.34$12,181
May 200203,79124.663.58$13,587
Apr 200203,70223.653.51$13,003
Mar 200203,63822.003.10$11,288
Feb 200203,28218.222.38$7,797
Jan 200203,74917.172.38$8,906
Dec 200103,88116.932.36$9,176
Nov 200103,61618.072.41$8,698
Oct 200103,29119.782.53$8,323
Sep 200103,39624.262.25$7,645
Aug 200103,61024.873.05$11,022
Jul 200107,17623.933.20$22,942
Jun 200103,81524.563.82$14,589
May 200103,89025.524.31$16,755
Apr 200103,71224.685.34$19,805
Mar 200103,61224.545.38$19,420
Feb 200103,31927.755.77$19,141
Jan 200103,33627.478.40$28,018
Dec 200003,36426.889.12$30,688
Nov 200003,02732.215.66$17,127
Oct 200003,02431.235.15$15,560
Sep 200003,31131.875.19$17,173
Aug 200003,94829.644.54$17,927
Jul 200004,07328.534.09$16,658
Jun 200004,15829.304.40$18,284
May 200004,18427.263.68$15,396
Apr 200004,18224.513.12$13,031
Mar 200003,85828.422.86$11,033
Feb 200004,10227.622.73$11,184
Jan 200004,38625.272.48$10,879
Dec 199903,96024.282.42$9,598
Nov 199904,36623.192.43$10,627
Oct 199903,66420.982.80$10,273
Sep 199904,00421.752.62$10,486
Aug 199904,57319.262.88$13,150
Jul 199904,20017.892.37$9,964
Jun 199904,32715.942.36$10,221
May 199904,58415.792.32$10,640
Apr 199904,25015.102.21$9,384
Mar 199904,04112.471.84$7,429
Feb 199903,8049.981.82$6,915
Jan 199904,26710.381.90$8,107
Dec 199804,3899.201.77$7,783
Nov 199803,97010.892.19$8,677
Oct 199804,89912.421.97$9,647
Sep 199804,47512.592.08$9,320
Aug 199804,77111.301.91$9,100
Jul 199804,25711.742.24$9,524
Jun 199804,52111.242.24$10,115
May 199804,93512.622.21$10,888
Apr 199804,00213.042.51$10,026
Mar 199804,28712.802.31$9,901
Feb 199804,06813.952.30$9,353
Jan 199804,79114.702.15$10,324
Dec 199704,73016.322.41$11,405
Nov 199704,68518.193.09$14,469
Oct 199704,94119.253.15$15,563
Sep 199704,90717.742.95$14,500
Aug 199704,59617.862.55$11,742
Jul 199704,97417.582.25$11,176
Jun 199704,73617.242.26$10,690
May 19971935,18618.972.31$15,633
Apr 199704,89517.882.08$10,195
Mar 199705,11218.951.94$9,913
Feb 199704,01820.492.21$8,863
Jan 199704,83723.483.54$17,122
Dec 199604,25323.32$0
Nov 199603,36821.97$0
Oct 19961934,90323.31$4,499
Sep 199604,29822.22$0
Aug 199605,06720.26$0
Jul 199604,87419.55$0
Jun 199604,70218.73$0
May 19961864,94419.43$3,614
Apr 199604,69621.51$0
Mar 199604,73019.38$0
Feb 199603,68516.98$0
Jan 199603,72217.07$0
Dec 1995733,87117.19$1,255
Nov 199504,12916.00$0
Oct 19951824,35615.43$2,808
Sep 199503,54316.18$0
Aug 199503,91315.92$0
Jul 199504,37015.24$0
Jun 199504,06816.41$0
May 19951824,19517.56$3,196
Apr 199504,49517.73$0
Mar 199504,46816.44$0
Feb 199503,39516.58$0
Jan 199504,60815.92$0
Dec 199404,92715.03$0
Nov 19941824,58215.90$2,894
Oct 199404,58315.58$0
Sep 199403,54915.29$0
Aug 199403,39116.13$0
Jul 199402,71417.56$0
Jun 199403,64617.09$0
May 19941774,84815.88$2,811
Apr 199404,84314.14$0
Mar 199404,54512.46$0
Feb 199403,49912.50$0
Jan 19941744,16212.66$2,203
Dec 199303,85412.33$0
Nov 199305,06414.49$0
Oct 199305,33315.85$0
Sep 199305,09715.03$0
Aug 19931814,83315.66$2,834
Jul 199305,20215.46$0
Jun 199304,34716.79$0
May 19931833,88117.68$3,235
Apr 199304,89018.05$0
Mar 199305,51918.14$0
Feb 199304,35417.90$0
Jan 199303,32416.93$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                  497 Mcf  × $  3.05 =     $1,514

────────────────────────────────────────────────────
Month total                                   $1,514

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/71851 is the state's own key, not one this site invented.