MASTEN, F. O.

Operated by MONTEX DRILLING COMPANY, LLC (P-5 100614) in the MONCRIEF-MASTEN (DEVONIAN) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 65112District 8AField 62466500OilCasinghead gasSave
Value, all time
$7.5 M
Jan 1993 – May 2026
Value, last 12 filed months
$189 k
at the published price for each month
Months reported
401
no gaps in the span
Streams
2
oil, casinghead gas

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
OilDisposition79,966 bbl$3,375,345
Casinghead gasProduction1,185,731 Mcf$4,167,568
Total$7,542,913

196,974 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 33.5754, -102.9043. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.0 miles.

33.57540, -102.90426 · 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
10,090 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 10,090 ft.

Completions filed
Feb 1967
1 of 1 wells

1 well

42-07910237110,090 ftFeb 1967

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 20261952,832106.413.05$29,376
Apr 20261801,18198.932.87$21,197
Mar 202604,20589.753.15$13,243
Feb 20261711,40063.503.75$16,109
Jan 20261881,51159.138.00$23,201
Dec 20251841,95556.664.41$19,054
Nov 20251751,63458.593.93$16,669
Oct 20253551,98459.383.30$27,637
Sep 20250062.743.08$0
Aug 20251921,14063.933.01$15,711
Jul 202501,41866.743.32$4,701
Jun 2025373166.483.13$2,487
May 20252081,22560.553.23$16,554
Apr 20251801,55062.363.54$16,717
Mar 2025083667.704.27$3,568
Feb 2025078270.884.34$3,395
Jan 202519079574.324.28$17,522
Dec 2024048268.993.12$1,505
Nov 202403269.052.20$70
Oct 20240071.372.28$0
Sep 202417916669.612.36$12,853
Aug 20241061,17475.632.06$10,439
Jul 202431,22679.932.15$2,872
Jun 20241491,49378.082.63$15,566
May 20241841,12778.812.20$16,979
Apr 20241831,62684.451.66$18,152
Mar 2024076380.301.55$1,179
Feb 20241781,29476.091.78$15,852
Jan 202402,00873.023.30$6,622
Dec 20233701,36471.262.61$29,927
Nov 202393,12277.892.81$9,466
Oct 202318432385.443.09$16,718
Sep 2023053789.042.74$1,469
Aug 20231473,18180.522.67$20,339
Jul 20231841,13374.852.64$16,766
Jun 202302,88368.962.26$6,511
May 202301,55770.622.23$3,468
Apr 20231882,86778.122.24$21,102
Mar 20231732,23972.852.39$17,961
Feb 202302,30975.112.47$5,693
Jan 20233232,53976.533.39$33,321
Dec 2022035276.415.73$2,017
Nov 202222,98485.005.65$17,018
Oct 20223812,53787.185.86$48,092
Sep 2022173,80184.888.16$32,473
Aug 2022791394.529.13$8,995
Jul 20221842,222101.587.54$35,449
Jun 20221842,669115.097.98$42,468
May 202200109.378.43$0
Apr 20222042,418104.226.84$37,794
Mar 20221932,273108.885.08$32,553
Feb 20221942,53791.054.86$29,991
Jan 20221862,29481.844.54$25,632
Dec 2021132,86971.323.90$12,114
Nov 20211961,04477.435.24$20,644
Oct 202161,92079.795.71$11,449
Sep 20211992,90169.865.35$29,425
Aug 20211862,83066.024.22$24,224
Jul 20211993,52470.783.98$28,118
Jun 2021132,46669.493.38$9,240
May 202118090363.483.02$14,151
Apr 202194,47760.362.76$12,893
Mar 20211841,09561.302.72$14,254
Feb 2021118357.805.55$1,073
Jan 202103,82150.412.81$10,738
Dec 202003,92744.642.68$10,507
Nov 20203553,03538.772.71$21,978
Oct 2020173,91936.972.48$10,341
Sep 20201973,65737.091.99$14,588
Aug 202023,24139.982.39$7,810
Jul 202023,08938.371.83$5,715
Jun 20205023,63434.901.69$23,662
May 2020153,04616.921.81$5,782
Apr 202083,63614.751.80$6,679
Mar 202002,91130.341.86$5,403
Feb 20201932,77749.881.98$15,127
Jan 20201632,76657.252.09$15,126
Dec 20191792,86859.012.30$17,172
Nov 20191893,00555.302.75$18,718
Oct 20191863,41353.472.42$18,200
Sep 20191902,24655.052.66$16,428
Aug 201943,39553.112.30$8,036
Jul 20193613,54656.272.46$29,037
Jun 201902,89452.782.49$7,210
May 20191922,12758.482.74$17,057
Apr 201902,12162.632.75$5,834
Mar 20193672,41256.803.06$28,231
Feb 201922,91850.852.79$8,249
Jan 20193483,28446.033.23$26,620
Dec 201852,83846.594.19$12,111
Nov 20181913,32152.934.24$24,182
Oct 20181923,66361.443.40$24,244
Sep 201832,70059.543.11$8,570
Aug 20181922,64559.403.07$19,516
Jul 201852,20965.142.93$6,802
Jun 2018103,10160.183.08$10,143
May 20181893,70265.382.90$23,096
Apr 20181903,39563.842.90$21,978
Mar 2018215861.222.79$563
Feb 20180061.782.77$0
Jan 20181832,54462.874.01$21,705
Dec 20171973,59957.272.92$21,797
Nov 20172023,85155.423.12$23,204
Oct 20172033,09349.292.98$19,234
Sep 201782,35947.523.09$7,663
Aug 20171941,81645.373.00$14,258
Jul 2017112,41743.873.09$7,945
Jun 20171902,71342.493.09$16,449
May 201792,05045.373.26$7,098
Apr 20171932,17547.933.21$16,236
Mar 201783,01046.772.98$9,355
Feb 20171961,96650.452.95$15,693
Jan 201751,28149.413.42$4,627
Dec 20161802,18048.763.72$16,893
Nov 2016122,22242.492.64$6,386
Oct 2016103,49946.193.09$11,275
Sep 20161872,62741.553.10$15,915
Aug 2016430341.442.92$1,052
Jul 20161711,37641.622.92$11,141
Jun 2016102,15145.352.69$6,231
May 2016194042.521.99$8,249
Apr 2016188036.561.99$6,873
Mar 20161842,67633.011.79$10,875
Feb 20161882,34126.472.06$9,807
Jan 20161922,50827.352.36$11,181
Dec 20151893,38432.362.00$12,889
Nov 2015114,42438.792.17$10,015
Oct 2015101,59743.552.43$4,311
Sep 20151882,14842.992.76$14,007
Aug 2015102,19940.162.87$6,718
Jul 20151933,63748.152.95$20,004
Jun 201563,68456.152.88$10,957
May 20151776,51555.212.96$29,027
Apr 20151842,77149.822.71$16,667
Mar 20152002,30642.892.93$15,345
Feb 2015112,29044.662.98$7,307
Jan 20152051,65143.433.10$14,022
Dec 20141782,14354.693.59$17,431
Nov 20141822,57170.464.25$23,755
Oct 201402,62178.303.90$10,224
Sep 20141912,62586.164.05$27,076
Aug 20141852,43689.394.04$26,367
Jul 20141872,86196.564.18$30,015
Jun 201493,60698.164.74$17,965
May 20141944,14294.734.73$37,955
Apr 2014132,22595.944.81$11,948
Mar 20142002,48295.895.06$31,729
Feb 20141891,38097.406.19$26,954
Jan 20142024,03790.404.86$37,884
Dec 201381,67491.824.35$8,024
Nov 20134088.853.74$355
Oct 20134097.423.78$390
Sep 201300104.113.72$0
Aug 20131941,679104.253.52$26,139
Jul 20131892,200102.523.72$27,555
Jun 2013111,12494.403.93$5,460
May 20131932,75294.834.15$29,720
Apr 20131782,18393.964.28$26,074
Mar 2013161,66493.623.91$8,009
Feb 20133802,47891.233.42$43,142
Jan 2013132,20891.603.42$8,742
Dec 2012122,90786.773.42$10,984
Nov 20121971,82486.953.62$23,741
Oct 20123822,13789.383.40$41,408
Sep 2012202,68394.672.92$9,723
Aug 20121711,00092.662.91$18,753
Jul 2012104,34985.133.02$13,989
Jun 201293,08779.822.52$8,495
May 20121883,35191.612.49$25,561
Apr 20121932,282101.652.00$24,175
Mar 20121883,079105.052.22$26,591
Feb 20121922,790101.102.57$26,582
Jan 20121892,70998.092.73$25,946
Dec 2011122,15196.873.24$8,131
Nov 20111942,44795.723.31$26,672
Oct 2011172,97584.983.65$12,299
Sep 20111882,68183.623.99$26,406
Aug 2011153,18883.404.15$14,479
Jul 20111882,16694.144.52$27,483
Jun 20111982,85392.904.64$31,632
May 2011183,05698.134.40$15,227
Apr 20111932,919105.964.33$33,099
Mar 20111952,93296.364.06$30,686
Feb 2011242,12285.644.18$10,925
Jan 20113842,89686.504.59$46,505
Dec 2010102,79985.734.35$13,027
Nov 20101802,39980.843.80$23,656
Oct 201092,36678.103.51$9,005
Sep 20101872,98872.633.98$25,472
Aug 20101902,83573.684.42$26,528
Jul 20101892,93272.554.74$27,599
Jun 2010152,17670.364.91$11,740
May 20102112,19071.124.24$24,281
Apr 20101992,22081.694.12$25,409
Mar 20101912,85278.394.39$27,489
Feb 20101972,69073.585.44$29,135
Jan 20101973,02974.365.96$32,714
Dec 20091912,85071.445.48$29,274
Nov 20092082,96274.593.75$26,627
Oct 20092002,89872.544.11$26,420
Sep 20091941,60965.543.06$17,646
Aug 20091943,19667.423.22$23,366
Jul 20091952,04461.133.46$19,002
Jun 2009123,14866.163.90$13,055
May 20092132,38754.743.93$21,030
Apr 20092021,93446.773.59$16,386
Mar 20091942,01142.144.06$16,338
Feb 200919937132.814.63$8,248
Jan 20092031,83835.865.37$17,151
Dec 20081992,99737.105.98$25,296
Nov 20081992,47855.496.86$28,042
Oct 2008131,27075.246.92$9,769
Sep 200863,197101.767.88$25,794
Aug 20083751,998114.228.48$59,782
Jul 2008163,228131.0811.39$38,862
Jun 20081941,868131.3313.03$49,823
May 20082062,836123.1711.57$58,198
Apr 20082003,425110.3110.45$57,870
Mar 2008143,396101.909.66$34,246
Feb 20083693,31092.538.77$63,174
Jan 20081983,44290.388.21$46,139
Dec 20071952,55288.337.30$35,859
Nov 20071973,35791.677.29$42,537
Oct 20071953,22082.856.92$38,445
Sep 200752,42075.846.24$15,490
Aug 20071932,12669.066.39$26,909
Jul 20071942,40870.906.39$29,137
Jun 2007122,30362.007.55$18,128
May 20073792,04858.747.85$38,332
Apr 20075822,96259.617.81$57,812
Mar 200792,88056.927.30$21,542
Feb 20072021,45855.108.22$23,109
Jan 2007121,35750.306.73$9,732
Dec 200692,05856.656.92$14,748
Nov 20061972,46954.207.62$29,485
Oct 20065722,65554.906.01$47,369
Sep 20061992,96860.085.04$26,906
Aug 2006103,65268.717.34$27,492
Jul 20063832,68569.376.34$43,599
Jun 20061993,25066.286.38$33,937
May 20061973,48266.016.42$35,376
Apr 20061933,17264.397.36$35,775
Mar 20061811,93356.707.08$23,954
Feb 200611,09657.597.75$8,553
Jan 20061843,51760.598.93$42,567
Dec 20051972,90754.9413.42$49,822
Nov 20052013,70354.6910.59$50,202
Oct 20053933,74358.3413.80$74,565
Sep 20051953,65261.4512.08$56,095
Aug 200562,50361.519.80$24,891
Jul 20051883,02655.697.84$34,205
Jun 20053683,07952.337.38$41,984
May 200563,47445.226.65$23,377
Apr 20053843,87749.207.36$47,429
Mar 200522350.377.15$265
Feb 200592,68645.226.31$17,361
Jan 20052043,73243.166.32$32,399
Dec 20041393,60839.866.75$29,898
Nov 20043473,66645.286.33$38,919
Oct 20041985,08549.706.52$42,970
Sep 20043621,38143.245.28$22,950
Aug 20041672,55142.375.55$21,236
Jul 20041783,33938.286.08$27,129
Jun 20041933,62536.106.43$30,287
May 20043794,14937.486.49$41,151
Apr 20041893,32534.475.86$25,994
Mar 20043865,34234.365.53$42,805
Feb 20040032.455.51$0
Jan 2004217732.036.30$1,179
Dec 20032153,25130.266.30$26,993
Nov 20032413,26228.804.60$21,930
Oct 20032236,65028.174.76$37,934
Sep 20032175,48326.314.75$31,750
Aug 20034023,67529.765.13$30,815
Jul 20032604,12129.415.17$28,956
Jun 20032074,42728.565.98$32,398
May 20033994,28626.595.97$36,208
Apr 20034303,67826.675.41$31,356
Mar 20034123,78431.146.10$35,897
Feb 20032113,45733.487.93$34,464
Jan 20034253,99530.315.58$35,182
Dec 20024074,21926.914.85$31,430
Nov 20024064,33224.664.14$27,933
Oct 20022244,15526.464.23$23,499
Sep 20024034,25227.443.64$26,515
Aug 20024534,37325.963.16$25,597
Jul 20022134,14224.583.06$17,917
Jun 20023753,79123.733.34$21,554
May 20024023,77524.663.58$23,443
Apr 20022424,08323.653.51$20,064
Mar 20023854,21422.003.10$21,545
Feb 20022893,46718.222.38$13,502
Jan 20024504,70317.172.38$18,899
Dec 20014022,94316.932.36$13,764
Nov 2001153,94818.072.41$9,768
Oct 20014114,35819.782.53$19,150
Sep 20011852,08824.262.25$9,189
Aug 20014027,15924.873.05$31,855
Jul 20012033,75223.933.20$16,853
Jun 20012155,43724.563.82$26,072
May 20011753,63225.524.31$20,110
Apr 20013943,72224.685.34$29,582
Mar 20012003,95224.545.38$26,156
Feb 20014003,74927.755.77$32,721
Jan 20012096,79627.478.40$62,819
Dec 200001,08526.889.12$9,898
Nov 20000332.215.66$17
Oct 20002002,10231.235.15$17,062
Sep 20003887,22331.875.19$49,828
Aug 20001897,93229.644.54$41,619
Jul 20003805,49028.534.09$33,294
Jun 20001864,35729.304.40$24,609
May 20003784,24227.263.68$25,914
Apr 20001982,81124.513.12$13,612
Mar 20001993,59828.422.86$15,945
Feb 20003803,46527.622.73$19,943
Jan 20001803,90425.272.48$14,232
Dec 19993794,02824.282.42$18,965
Nov 19993784,19923.192.43$18,986
Oct 19991874,23720.982.80$15,803
Sep 19993714,15021.752.62$18,937
Aug 19993654,44219.262.88$19,803
Jul 19994024,59017.892.37$18,081
Jun 19991854,96915.942.36$14,686
May 19993733,97915.792.32$15,125
Apr 19991914,25215.102.21$12,273
Mar 19993715,21512.471.84$14,213
Feb 19993744,2299.981.82$11,420
Jan 19993744,71310.381.90$12,837
Dec 19983794,2869.201.77$11,087
Nov 19981884,50310.892.19$11,890
Oct 19981882,93112.421.97$8,107
Sep 19983783,25212.592.08$11,532
Aug 19983694,41011.301.91$12,581
Jul 19981874,16211.742.24$11,507
Jun 19983774,07711.242.24$13,359
May 19983734,27112.622.21$14,131
Apr 19981872,04813.042.51$7,569
Mar 19983822,94512.802.31$11,691
Feb 19983872,74913.952.30$11,719
Jan 19983713,15714.702.15$12,256
Dec 19973803,28616.322.41$14,124
Nov 19971892,99618.193.09$12,690
Oct 19973793,75519.253.15$19,123
Sep 19971882,79117.742.95$11,582
Aug 19973714,56417.862.55$18,286
Jul 19971894,63717.582.25$13,742
Jun 19973854,69917.242.26$17,244
May 19973764,46118.972.31$17,431
Apr 19973804,55717.882.08$16,286
Mar 19973764,13718.951.94$15,147
Feb 19971903,08020.492.21$10,687
Jan 19973823,53323.483.54$21,475
Dec 19961904,20223.32$4,431
Nov 19961934,33021.97$4,240
Oct 19963754,85823.31$8,741
Sep 19964274,61422.22$9,488
Aug 19963824,06620.26$7,739
Jul 19961883,57719.55$3,675
Jun 19963874,41618.73$7,249
May 19961873,82719.43$3,633
Apr 19965983,72921.51$12,863
Mar 19961954,24219.38$3,779
Feb 19963944,19216.98$6,690
Jan 19962074,35717.07$3,533
Dec 19953924,36817.19$6,738
Nov 19953843,98616.00$6,144
Oct 19951872,67615.43$2,885
Sep 19953722,58516.18$6,019
Aug 19953753,07115.92$5,970
Jul 19953764,09615.24$5,730
Jun 19953744,37616.41$6,137
May 19953774,78417.56$6,620
Apr 19953584,61917.73$6,347
Mar 19953754,84516.44$6,165
Feb 19953784,42316.58$6,267
Jan 19953774,85915.92$6,002
Dec 19945624,81215.03$8,447
Nov 19941894,69415.90$3,005
Oct 19945624,59615.58$8,756
Sep 19943684,14115.29$5,627
Aug 19941803,73416.13$2,903
Jul 19943663,18917.56$6,427
Jun 19945503,24817.09$9,400
May 19941803,34815.88$2,858
Apr 19941863,38814.14$2,630
Mar 19945404,04112.46$6,728
Feb 19945783,85212.50$7,225
Jan 19941804,45712.66$2,279
Dec 19933814,54012.33$4,698
Nov 19931594,31514.49$2,304
Oct 19935704,71015.85$9,035
Sep 19931834,75415.03$2,750
Aug 19935434,84515.66$8,503
Jul 19931764,82315.46$2,721
Jun 19933733,99216.79$6,263
May 19935533,46017.68$9,777
Apr 19933764,30118.05$6,787
Mar 19933823,38718.14$6,929
Feb 19931903,25417.90$3,401
Jan 19933783,99516.93$6,400

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                  195 bbl  × $106.41 =    $20,750
Casinghead gas     2,832 Mcf  × $  3.05 =     $8,626

────────────────────────────────────────────────────
Month total                                  $29,376

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/65112 is the state's own key, not one this site invented.