MCMULLAN, R. B. A

Operated by EXTEX OPERATING COMPANY (P-5 257062) in the DAVIDSON RANCH (PENN. 7890) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Gas lease lease 171951District 7CField 233657502 tax incentive programmesCondensateGasSaveExport
Value, all time
$2.8 M
Jul 1998 – May 2026
Value, last 12 filed months
$15 k
at the published price for each month
Months reported
335
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 670 leases and 670 wells, and the rule below applies to all of them.

Discovered
1964-12-21
as the register files it
Field class
Gas
the register's own label
Between wells
660 ft
minimum
From a lease line
467 ft
minimum

A drilling unit in this field needs at least 20 acres. The field rule took effect on 2004-05-25.

The Commission's schedule remark for this field reads: AMENDED TO 20 ACRES WITH A 2100 FOOT DIAGONAL.

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
High Cost Gas112002-03-13146401
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
CondensateDisposition12 bbl$300
GasProduction602,991 Mcf$2,824,989
Total$2,825,290

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 30.5920, -101.0665. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.0 miles.

30.59203, -101.06649 · 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
9,170 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 9,170 ft.

Completions filed
Jul 1998
1 of 1 wells

1 well

42-1053316119,170 ftJul 1998

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 (335)

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

335 months

May 2026014106.413.05$43
Apr 20260098.932.87$0
Mar 202604289.753.15$132
Feb 2026051663.503.75$1,935
Jan 2026058759.138.00$4,695
Dec 2025052756.664.41$2,326
Nov 202501358.593.93$51
Oct 202502659.383.30$86
Sep 2025039562.743.08$1,215
Aug 2025042163.933.01$1,269
Jul 2025042366.743.32$1,402
Jun 2025044266.483.13$1,383
May 2025046960.553.23$1,516
Apr 2025046262.363.54$1,637
Mar 2025049767.704.27$2,121
Feb 2025047570.884.34$2,062
Jan 2025059774.324.28$2,554
Dec 2024062268.993.12$1,941
Nov 202403569.052.20$77
Oct 2024017771.372.28$404
Sep 202401169.612.36$26
Aug 202401675.632.06$33
Jul 2024012279.932.15$262
Jun 2024011078.082.63$290
May 202406778.812.20$147
Apr 2024021384.451.66$353
Mar 2024058480.301.55$902
Feb 2024061076.091.78$1,088
Jan 2024066273.023.30$2,183
Dec 2023065971.262.61$1,720
Nov 2023061977.892.81$1,738
Oct 2023044485.443.09$1,371
Sep 2023050389.042.74$1,376
Aug 2023065480.522.67$1,748
Jul 2023067774.852.64$1,789
Jun 2023067868.962.26$1,531
May 2023062670.622.23$1,394
Apr 2023065978.122.24$1,475
Mar 2023068272.852.39$1,632
Feb 2023047675.112.47$1,174
Jan 2023046776.533.39$1,582
Dec 2022041676.415.73$2,383
Nov 2022046985.005.65$2,648
Oct 2022047287.185.86$2,768
Sep 2022046584.888.16$3,796
Aug 2022050794.529.13$4,627
Jul 20220467101.587.54$3,522
Jun 20220454115.097.98$3,622
May 20220473109.378.43$3,989
Apr 20220471104.226.84$3,221
Mar 20220508108.885.08$2,579
Feb 2022043191.054.86$2,094
Jan 2022051381.844.54$2,328
Dec 2021054271.323.90$2,113
Nov 2021052377.435.24$2,739
Oct 2021050779.795.71$2,897
Sep 2021047669.865.35$2,547
Aug 2021072066.024.22$3,039
Jul 2021071370.783.98$2,839
Jun 2021069769.493.38$2,356
May 2021064663.483.02$1,949
Apr 2021072560.362.76$2,000
Mar 2021075861.302.72$2,059
Feb 2021057957.805.55$3,212
Jan 2021061050.412.81$1,714
Dec 2020069144.642.68$1,849
Nov 2020074038.772.71$2,003
Oct 2020084336.972.48$2,089
Sep 2020073737.091.99$1,467
Aug 2020083439.982.39$1,989
Jul 2020096038.371.83$1,752
Jun 2020084234.901.69$1,423
May 202001,17816.921.81$2,138
Apr 20200014.751.80$0
Mar 202004030.341.86$74
Feb 202001,07449.881.98$2,127
Jan 2020075557.252.09$1,582
Dec 2019071859.012.30$1,655
Nov 2019064355.302.75$1,769
Oct 2019090753.472.42$2,194
Sep 2019099555.052.66$2,644
Aug 201901,52753.112.30$3,519
Jul 20190056.272.46$0
Jun 20190052.782.49$0
May 201901,29158.482.74$3,538
Apr 201903462.632.75$94
Mar 2019084756.803.06$2,594
Feb 2019088850.852.79$2,479
Jan 2019095746.033.23$3,089
Dec 201805146.594.19$213
Nov 2018062952.934.24$2,665
Oct 2018089361.443.40$3,034
Sep 2018083359.543.11$2,589
Aug 2018084159.403.07$2,579
Jul 2018091765.142.93$2,689
Jun 2018085360.183.08$2,625
May 2018089765.382.90$2,602
Apr 2018086863.842.90$2,518
Mar 2018088661.222.79$2,469
Feb 2018079761.782.77$2,205
Jan 2018077162.874.01$3,091
Dec 2017082957.272.92$2,422
Nov 2017083455.423.12$2,601
Oct 2017091049.292.98$2,715
Sep 2017090647.523.09$2,797
Aug 2017091045.373.00$2,734
Jul 2017093943.873.09$2,899
Jun 2017092342.493.09$2,850
May 201701,00245.373.26$3,270
Apr 2017091947.933.21$2,951
Mar 2017097046.772.98$2,894
Feb 2017089350.452.95$2,637
Jan 201701,01849.413.42$3,480
Dec 2016097348.763.72$3,622
Nov 2016097442.492.64$2,576
Oct 201601,04246.193.09$3,220
Sep 201601,00741.553.10$3,122
Aug 201601,10041.442.92$3,217
Jul 2016098741.622.92$2,886
Jun 201601,01045.352.69$2,713
May 201601,03942.521.99$2,069
Apr 201601,01136.561.99$2,013
Mar 201601,05933.011.79$1,900
Feb 201601,01626.472.06$2,097
Jan 201601,09427.352.36$2,587
Dec 201501,06932.362.00$2,140
Nov 201501,08238.792.17$2,345
Oct 201501,15943.552.43$2,812
Sep 201501,14642.992.76$3,161
Aug 201501,12940.162.87$3,243
Jul 201501,26948.152.95$3,737
Jun 201501,40856.152.88$4,059
May 2015071455.212.96$2,110
Apr 201501,03149.822.71$2,790
Mar 2015088242.892.93$2,588
Feb 2015083044.662.98$2,470
Jan 201501,06243.433.10$3,293
Dec 201401,20054.693.59$4,310
Nov 201401,18070.464.25$5,017
Oct 201401,29478.303.90$5,048
Sep 201401,18386.164.05$4,786
Aug 2014086089.394.04$3,470
Jul 2014082196.564.18$3,431
Jun 2014081298.164.74$3,846
May 2014088094.734.73$4,159
Apr 2014089795.944.81$4,314
Mar 2014094195.895.06$4,758
Feb 2014068797.406.19$4,254
Jan 2014074090.404.86$3,597
Dec 2013070691.824.35$3,074
Nov 2013091488.853.74$3,417
Oct 2013099297.423.78$3,749
Sep 20130961104.113.72$3,573
Aug 20130957104.253.52$3,371
Jul 201301,058102.523.72$3,933
Jun 201301,07594.403.93$4,228
May 2013075894.834.15$3,145
Apr 201301,10693.964.28$4,737
Mar 2013096793.623.91$3,784
Feb 201301,18291.233.42$4,042
Jan 201301,33891.603.42$4,576
Dec 201201,31786.773.42$4,504
Nov 201201,22686.953.62$4,444
Oct 201201,36189.383.40$4,627
Sep 201201,34694.672.92$3,928
Aug 201201,41092.662.91$4,101
Jul 201201,36885.133.02$4,132
Jun 201201,29179.822.52$3,252
May 201201,39491.612.49$3,469
Apr 201201,360101.652.00$2,716
Mar 201201,401105.052.22$3,113
Feb 201201,283101.102.57$3,298
Jan 201201,38898.092.73$3,795
Dec 201101,45096.873.24$4,698
Nov 201101,53795.723.31$5,089
Oct 2011038184.983.65$1,390
Sep 201101,63583.623.99$6,517
Aug 201101,43683.404.15$5,958
Jul 201101,53094.144.52$6,911
Jun 201101,52592.904.64$7,076
May 201101,69698.134.40$7,471
Apr 201101,413105.964.33$6,123
Mar 201101,76096.364.06$7,141
Feb 201101,99785.644.18$8,347
Jan 201101,59986.504.59$7,337
Dec 201001,73385.734.35$7,535
Nov 201001,21780.843.80$4,619
Oct 201001,56178.103.51$5,477
Sep 201001,62472.633.98$6,463
Aug 201001,62073.684.42$7,159
Jul 201001,56272.554.74$7,398
Jun 201001,58170.364.91$7,763
May 201001,88871.124.24$7,996
Apr 201001,82281.694.12$7,512
Mar 201001,83778.394.39$8,062
Feb 201001,66173.585.44$9,040
Jan 201001,98074.365.96$11,809
Dec 200902,00471.445.48$10,989
Nov 200901,93474.593.75$7,255
Oct 200901,96972.544.11$8,093
Sep 200901,93065.543.06$5,915
Aug 200902,01767.423.22$6,492
Jul 200901,55761.133.46$5,394
Jun 200902,04266.163.90$7,954
May 200902,30554.743.93$9,049
Apr 200901,83846.773.59$6,594
Mar 200902,27042.144.06$9,214
Feb 200902,03532.814.63$9,428
Jan 200901,88235.865.37$10,108
Dec 200801,95137.105.98$11,661
Nov 200802,06655.496.86$14,174
Oct 200802,07975.246.92$14,391
Sep 200801,198101.767.88$9,437
Aug 200801,879114.228.48$15,940
Jul 200801,847131.0811.39$21,036
Jun 200801,725131.3313.03$22,481
May 200802,020123.1711.57$23,380
Apr 200801,950110.3110.45$20,387
Mar 200802,114101.909.66$20,430
Feb 200802,09592.538.77$18,374
Jan 200802,24090.388.21$18,381
Dec 200702,20088.337.30$16,064
Nov 200702,17191.677.29$15,830
Oct 200702,23182.856.92$15,443
Sep 200702,13775.846.24$13,344
Aug 200702,49869.066.39$15,957
Jul 200702,77070.906.39$17,695
Jun 200702,14462.007.55$16,184
May 200702,29758.747.85$18,023
Apr 200702,16759.617.81$16,914
Mar 200702,64356.927.30$19,299
Feb 200701,94655.108.22$15,988
Jan 200702,18650.306.73$14,705
Dec 200602,51156.656.92$17,372
Nov 200602,63754.207.62$20,087
Oct 200602,97654.906.01$17,897
Sep 200602,91460.085.04$14,678
Aug 200603,11768.717.34$22,879
Jul 200602,54669.376.34$16,149
Jun 200602,98266.286.38$19,037
May 200602,83266.016.42$18,196
Apr 200602,39964.397.36$17,658
Mar 200602,59256.707.08$18,359
Feb 200602,50857.597.75$19,440
Jan 200602,32960.598.93$20,806
Dec 200502,63954.9413.42$35,403
Nov 200502,61154.6910.59$27,646
Oct 200502,71658.3413.80$37,469
Sep 200502,53261.4512.08$30,584
Aug 200502,83461.519.80$27,764
Jul 200502,67855.697.84$21,005
Jun 200502,76652.337.38$20,416
May 200502,72745.226.65$18,138
Apr 200502,84049.207.36$20,904
Mar 200502,76650.377.15$19,790
Feb 200502,92445.226.31$18,456
Jan 200503,74343.166.32$23,664
Dec 200402,96039.866.75$19,983
Nov 200403,09445.286.33$19,586
Oct 200403,41249.706.52$22,230
Sep 200443,31843.245.28$17,705
Aug 200403,48142.375.55$19,322
Jul 200403,52038.286.08$21,416
Jun 200403,66036.106.43$23,545
May 200403,48337.486.49$22,621
Apr 200402,93734.475.86$17,206
Mar 200403,55734.365.53$19,671
Feb 200403,18232.455.51$17,532
Jan 200402,91832.036.30$18,382
Dec 200303,36830.266.30$21,224
Nov 200303,46528.804.60$15,922
Oct 200303,48528.174.76$16,587
Sep 200303,45826.314.75$16,423
Aug 200303,65829.765.13$18,765
Jul 200303,84229.415.17$19,866
Jun 200303,41628.565.98$20,438
May 200303,38026.595.97$20,188
Apr 200303,24326.675.41$17,536
Mar 200303,61831.146.10$22,055
Feb 200302,88833.487.93$22,890
Jan 200303,42830.315.58$19,135
Dec 200203,48526.914.85$16,915
Nov 200203,66824.664.14$15,174
Oct 200203,09026.464.23$13,068
Sep 200203,75927.443.64$13,665
Aug 200203,85925.963.16$12,210
Jul 200203,89324.583.06$11,919
Jun 200204,09123.733.34$13,657
May 200203,64024.663.58$13,046
Apr 200203,88523.653.51$13,645
Mar 200204,22722.003.10$13,115
Feb 200203,59018.222.38$8,529
Jan 200204,38317.172.38$10,413
Dec 200103,97816.932.36$9,406
Nov 200103,85718.072.41$9,278
Oct 200103,84119.782.53$9,713
Sep 200103,67024.262.25$8,262
Aug 200104,34024.873.05$13,251
Jul 200103,98023.933.20$12,724
Jun 200103,92824.563.82$15,021
May 200103,88425.524.31$16,730
Apr 200104,18724.685.34$22,339
Mar 200104,25924.545.38$22,898
Feb 200103,92027.755.77$22,607
Jan 200104,98027.478.40$41,826
Dec 200003,17326.889.12$28,946
Nov 200004,18132.215.66$23,656
Oct 200004,22131.235.15$21,719
Sep 200003,87931.875.19$20,118
Aug 200004,56429.644.54$20,724
Jul 200004,49628.534.09$18,388
Jun 200004,39129.304.40$19,308
May 200004,62227.263.68$17,008
Apr 200004,77124.513.12$14,866
Mar 200004,97028.422.86$14,213
Feb 200004,71027.622.73$12,842
Jan 200005,13225.272.48$12,730
Dec 199905,40124.282.42$13,091
Nov 199904,48223.192.43$10,909
Oct 199904,94220.982.80$13,856
Sep 199904,34221.752.62$11,371
Aug 199904,67819.262.88$13,452
Jul 199904,94017.892.37$11,720
Jun 199984,88515.942.36$11,666
May 199905,81715.792.32$13,501
Apr 199904,34715.102.21$9,598
Mar 199904,43312.471.84$8,149
Feb 199904,9709.981.82$9,034
Jan 1999085310.381.90$1,621
Dec 199801,7459.201.77$3,094
Nov 199802,78610.892.19$6,089
Oct 199801,71012.421.97$3,367
Sep 199802,04712.592.08$4,263
Aug 199801,87911.301.91$3,584
Jul 19980011.742.24$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                   14 Mcf  × $  3.05 =        $43

────────────────────────────────────────────────────
Month total                                      $43

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/G/171951 is the state's own key, not one this site invented.