MASTEN, F. O. "D"

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

Oil lease lease 3749District 8AField 53411001OilCasinghead gasSave
Value, all time
$8.5 M
Jan 1993 – May 2026
Value, last 12 filed months
$952
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
OilDisposition234,447 bbl$7,212,578
Casinghead gasProduction652,421 Mcf$1,304,389
Total$8,516,967

315,948 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 (15)

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 33.5183, -102.9050. A lease has no coordinate of its own — that point is the mean of its wells, and they span 1.0 miles.

33.51891, -102.90409 · 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
33.3%
5 of 15 wells
With a plug date
33.3%
5 of 15 wells
Median depth
5,008 ft
15 wells filed one
Completion to plug
16.8 years
median over 4 wells

What the state filed about each well

On the RRC proration schedule
533.3%
A plug date is filed
533.3%
BothOn the schedule and plugged. Neither fact cancels the other.
533.3%
NeitherNo plug date, and not on the schedule.
1066.7%

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

0k
2k
4k
6k
8k
10k
12k
15k
20k+

Total depth in feet, 15 of 15 wells. Median 5,008 ft, with the middle half between 4,997 and 5,017 ft; the shallowest is 4,986 ft and the deepest 5,028 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

90s

Last completion by decade, 14 of 15 wells, Aug 1991 – Aug 1997. This is the LAST completion filed on each wellbore, not the first — a well recompleted in 2019 counts once, in the 2010s.

Completions filed
Aug 1991 – Aug 1997
14 of 15 wells; 1 filed none
Plug dates filed
Nov 1993 – Mar 2020
5 of 15 wells; 10 filed none

Last completion to plug: a median of 16.8 years across the 4 wells that filed both dates, with the middle half between 8.2 years and 24.3 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

15 wells

42-0790217414,991 ftOct 2018Yes
42-0793290144,994 ftAug 1997
42-07932898155,002 ftDec 1996Feb 2007Yes
42-0793288395,010 ftJul 1996
42-07932716104,986 ftSep 1993Mar 2020Yes
42-07932715114,996 ftAug 1993
42-07932713135,014 ftJul 1993
42-07932714125,018 ftJul 1993
42-07932691145,024 ftJun 1993
42-0793267355,016 ftMay 1993
42-0793266985,008 ftApr 1993
42-0793266864,998 ftApr 1993Oct 2016Yes
42-079326672 X5,028 ftApr 1993
42-0793266675,020 ftMar 1993
42-0790192825,000 ftAug 1991Nov 1993Yes

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 202600106.413.05$0
Apr 20260098.932.87$0
Mar 20260089.753.15$0
Feb 20260063.503.75$0
Jan 20260159.138.00$8
Dec 202504556.664.41$199
Nov 202504558.593.93$177
Oct 202505259.383.30$172
Sep 202503662.743.08$111
Aug 202504363.933.01$130
Jul 202503366.743.32$109
Jun 202501566.483.13$47
May 20250060.553.23$0
Apr 20250062.363.54$0
Mar 20250067.704.27$0
Feb 20250070.884.34$0
Jan 20250074.324.28$0
Dec 2024175068.993.12$12,073
Nov 20240569.052.20$11
Oct 202403071.372.28$68
Sep 202403869.612.36$90
Aug 20241612775.632.06$12,232
Jul 202402579.932.15$54
Jun 202401778.082.63$45
May 202403178.812.20$68
Apr 202402884.451.66$46
Mar 202402080.301.55$31
Feb 202404876.091.78$86
Jan 20241735173.023.30$12,801
Dec 202303871.262.61$99
Nov 202304577.892.81$126
Oct 202301085.443.09$31
Sep 20231745689.042.74$15,646
Aug 202314580.522.67$201
Jul 202303774.852.64$98
Jun 20231686668.962.26$11,734
May 202306570.622.23$145
Apr 20231527478.122.24$12,040
Mar 202306772.852.39$160
Feb 202315810075.112.47$12,114
Jan 2023011276.533.39$379
Dec 2022011076.415.73$630
Nov 202216110185.005.65$14,255
Oct 202209187.185.86$534
Sep 202217510984.888.16$15,744
Aug 202209594.529.13$867
Jul 202216484101.587.54$17,293
Jun 2022094115.097.98$750
May 202217074109.378.43$19,217
Apr 2022051104.226.84$349
Mar 202217631108.885.08$19,320
Feb 202202791.054.86$131
Jan 20221701981.844.54$13,999
Dec 202102171.323.90$82
Nov 202101477.435.24$73
Oct 20211711979.795.71$13,753
Sep 202101869.865.35$96
Aug 202101166.024.22$46
Jul 20211542170.783.98$10,984
Jun 202101769.493.38$57
May 202102463.483.02$72
Apr 20211602160.362.76$9,716
Mar 202102661.302.72$71
Feb 202101757.805.55$94
Jan 202102450.412.81$67
Dec 20201621844.642.68$7,280
Nov 202002038.772.71$54
Oct 202002236.972.48$55
Sep 2020163337.091.99$6,052
Aug 20200239.982.39$5
Jul 2020175238.371.83$6,718
Jun 20200434.901.69$7
May 20200016.921.81$0
Apr 20200014.751.80$0
Mar 202001930.341.86$35
Feb 20201692049.881.98$8,469
Jan 202002357.252.09$48
Dec 20191703259.012.30$10,105
Nov 201903455.302.75$94
Oct 20191734053.472.42$9,347
Sep 201904555.052.66$120
Aug 20191645153.112.30$8,828
Jul 201903256.272.46$79
Jun 20191722652.782.49$9,143
May 201903058.482.74$82
Apr 20191603462.632.75$10,114
Mar 20191543756.803.06$8,861
Feb 201903350.852.79$92
Jan 20191543446.033.23$7,198
Dec 201803146.594.19$130
Nov 20183272852.934.24$17,427
Oct 201803161.443.40$105
Sep 20180359.543.11$9
Aug 20181591259.403.07$9,481
Jul 20181563665.142.93$10,267
Jun 20181612060.183.08$9,751
May 201801865.382.90$52
Apr 201802563.842.90$73
Mar 20181687661.222.79$10,497
Feb 20181706761.782.77$10,688
Jan 201807362.874.01$293
Dec 20171737857.272.92$10,136
Nov 20171708855.423.12$9,696
Oct 20171689349.292.98$8,558
Sep 20171689147.523.09$8,264
Aug 201708045.373.00$240
Jul 20171719143.873.09$7,783
Jun 20171699142.493.09$7,462
May 20171689845.373.26$7,942
Apr 20171688447.933.21$8,322
Mar 201709046.772.98$269
Feb 20171697750.452.95$8,753
Jan 20171724749.413.42$8,659
Dec 20161708948.763.72$8,621
Nov 20161738842.492.64$7,583
Oct 20161708246.193.09$8,106
Sep 20161718641.553.10$7,372
Aug 20161718741.442.92$7,341
Jul 20161709841.622.92$7,362
Jun 20161724845.352.69$7,929
May 20161709142.521.99$7,410
Apr 201616310036.561.99$6,158
Mar 20161741833.011.79$5,776
Feb 20161601826.472.06$4,272
Jan 20161666427.352.36$4,691
Dec 20151657432.362.00$5,488
Nov 20151697738.792.17$6,722
Oct 201517123343.552.43$8,012
Sep 20151628242.992.76$7,191
Aug 2015165840.162.87$6,649
Jul 2015331948.152.95$15,964
Jun 2015161956.152.88$9,066
May 2015059155.212.96$1,747
Apr 201533040849.822.71$17,545
Mar 201516930542.892.93$8,144
Feb 201516644844.662.98$8,747
Jan 201516922943.433.10$8,050
Dec 201433451454.693.59$20,112
Nov 2014076170.464.25$3,236
Oct 201451675778.303.90$43,356
Sep 2014051986.164.05$2,100
Aug 201433520689.394.04$30,777
Jul 201416419596.564.18$16,651
Jun 201416721198.164.74$17,392
May 201417014994.734.73$16,808
Apr 201434021395.944.81$33,644
Mar 201417020395.895.06$17,328
Feb 201434113997.406.19$34,074
Jan 201417117190.404.86$16,290
Dec 201316114991.824.35$15,432
Nov 2013340088.853.74$30,209
Oct 2013169097.423.78$16,464
Sep 201317024104.113.72$17,788
Aug 2013335164104.253.52$35,501
Jul 2013170157102.523.72$18,012
Jun 201316513994.403.93$16,123
May 201317315294.834.15$17,036
Apr 201334132393.964.28$33,424
Mar 201333415893.623.91$31,887
Feb 201317526491.233.42$16,868
Jan 201317231691.603.42$16,836
Dec 201250533686.773.42$44,968
Nov 2012033486.953.62$1,211
Oct 201217034389.383.40$16,361
Sep 201234035694.672.92$33,227
Aug 201216636892.662.91$16,452
Jul 201216340585.133.02$15,100
Jun 201234339979.822.52$28,383
May 201216845091.612.49$16,510
Apr 2012329411101.652.00$34,264
Mar 2012332423105.052.22$35,817
Feb 2012165384101.102.57$17,668
Jan 201233738998.092.73$34,120
Dec 201117137896.873.24$17,789
Nov 201133939895.723.31$33,767
Oct 201133641384.983.65$30,060
Sep 201116630783.623.99$15,105
Aug 201133841383.404.15$29,903
Jul 201133337394.144.52$33,034
Jun 201117140492.904.64$17,760
May 201133045098.134.40$34,365
Apr 2011342416105.964.33$38,041
Mar 201116932796.364.06$17,612
Feb 201116632685.644.18$15,579
Jan 201133642586.504.59$31,014
Dec 201016842485.734.35$16,246
Nov 201032539180.843.80$27,757
Oct 201034246578.103.51$28,342
Sep 201017032072.633.98$13,621
Aug 201050531273.684.42$38,587
Jul 201016127872.554.74$12,997
Jun 201033023570.364.91$24,373
May 201035523471.124.24$26,239
Apr 201034633181.694.12$29,629
Mar 201017435478.394.39$15,193
Feb 201034137273.585.44$27,115
Jan 201017245074.365.96$15,474
Dec 200917644871.445.48$15,030
Nov 200932846774.593.75$26,217
Oct 200934544372.544.11$26,847
Sep 200917446465.543.06$12,826
Aug 200950658467.423.22$35,994
Jul 200916257461.133.46$11,892
Jun 200947856766.163.90$33,833
May 200917872154.743.93$12,574
Apr 200951971146.773.59$26,824
Mar 200933265342.144.06$16,641
Feb 200917028232.814.63$6,884
Jan 200934358935.865.37$15,464
Dec 200834174137.105.98$17,080
Nov 200834675055.496.86$24,345
Oct 200834879675.246.92$31,693
Sep 2008348538101.767.88$39,650
Aug 2008348848114.228.48$46,942
Jul 2008346830131.0811.39$54,807
Jun 2008174775131.3313.03$32,952
May 2008349847123.1711.57$52,790
Apr 2008515862110.3110.45$65,822
Mar 2008340930101.909.66$43,634
Feb 200851784192.538.77$55,214
Jan 200834489490.388.21$38,427
Dec 200734694988.337.30$37,492
Nov 200750391891.677.29$52,804
Oct 200734695882.856.92$35,297
Sep 200749993375.846.24$43,670
Aug 200751270369.066.39$39,849
Jul 200733891070.906.39$29,777
Jun 200766678862.007.55$47,240
May 200733770058.747.85$25,288
Apr 200734860359.617.81$25,451
Mar 200716572456.927.30$14,678
Feb 200732379555.108.22$24,329
Jan 200751166050.306.73$30,143
Dec 200633762556.656.92$23,415
Nov 200653453854.207.62$33,041
Oct 200634985154.906.01$24,278
Sep 200651687360.085.04$35,399
Aug 200634273368.717.34$28,879
Jul 200650489669.376.34$40,646
Jun 200634784066.286.38$28,362
May 200651890466.016.42$40,001
Apr 200686182464.397.36$61,505
Mar 200631191656.707.08$24,122
Feb 200617286057.597.75$16,571
Jan 20065031,07560.598.93$40,080
Dec 20053261,08554.9413.42$32,466
Nov 200569891954.6910.59$47,904
Oct 200533886658.3413.80$31,666
Sep 20053431,02061.4512.08$33,398
Aug 20055141,11761.519.80$42,559
Jul 20055141,14755.697.84$37,621
Jun 20056921,17152.337.38$44,856
May 20053341,12945.226.65$22,613
Apr 20055051,10649.207.36$32,987
Mar 200568480250.377.15$40,191
Feb 200567474245.226.31$35,162
Jan 200569496443.166.32$36,048
Dec 20046821,15239.866.75$34,962
Nov 20045221,06445.286.33$30,372
Oct 20046981,15349.706.52$42,203
Sep 200468795343.245.28$34,741
Aug 20046721,24042.375.55$35,355
Jul 20048441,24538.286.08$39,883
Jun 20048441,18536.106.43$38,092
May 20046951,21137.486.49$33,914
Apr 200489988134.475.86$36,150
Mar 20045301,17034.365.53$24,681
Feb 20045151,03532.455.51$22,414
Jan 20045111,15932.036.30$23,669
Dec 20035361,24130.266.30$24,040
Nov 20037021,17528.804.60$25,617
Oct 20035321,30028.174.76$21,174
Sep 20036881,32126.314.75$24,375
Aug 20035211,30229.765.13$22,184
Jul 20036871,38129.415.17$27,346
Jun 20035171,30128.565.98$22,549
May 20035231,10926.595.97$20,530
Apr 20037071,13226.675.41$24,977
Mar 20036761,07631.146.10$27,610
Feb 200352584033.487.93$24,235
Jan 200389684330.315.58$31,863
Dec 200254470426.914.85$18,056
Nov 200272454524.664.14$20,108
Oct 200272158726.464.23$21,560
Sep 200254151527.443.64$16,717
Aug 200272260025.963.16$20,642
Jul 20027271,06624.583.06$21,134
Jun 20026952,09123.733.34$23,473
May 20028642,10524.663.58$28,851
Apr 20026961,96523.653.51$23,362
Mar 20028831,93522.003.10$25,430
Feb 20027251,70018.222.38$17,248
Jan 20029302,11217.172.38$20,986
Dec 20017471,65616.932.36$16,562
Nov 20017292,10018.072.41$18,225
Oct 20019222,39119.782.53$24,284
Sep 20018921,02024.262.25$23,936
Aug 20019192,10024.873.05$29,267
Jul 20019101,60523.933.20$26,908
Jun 20019011,67324.563.82$28,526
May 20011,0682,51925.524.31$38,106
Apr 20019272,63924.685.34$36,958
Mar 20019152,08624.545.38$33,669
Feb 20019071,93227.755.77$36,311
Jan 20018872,42627.478.40$44,741
Dec 20009212,51326.889.12$47,681
Nov 20009242,61932.215.66$44,580
Oct 20009262,95031.235.15$44,098
Sep 20009193,11531.875.19$45,444
Aug 20001,0903,22429.644.54$46,947
Jul 20008983,08928.534.09$38,253
Jun 20009233,15829.304.40$40,930
May 20001,2543,38627.263.68$46,644
Apr 20008842,84124.513.12$30,519
Mar 20009293,23628.422.86$35,656
Feb 20001,2883,16327.622.73$44,198
Jan 20001,1262,88425.272.48$35,608
Dec 19991,1223,12624.282.42$34,819
Nov 19991,0853,24123.192.43$33,050
Oct 19991,2493,55220.982.80$36,163
Sep 19999113,28521.752.62$28,417
Aug 19991,2843,73319.262.88$35,464
Jul 19991,2503,13117.892.37$29,790
Jun 19991,2563,37115.942.36$27,983
May 19991,0843,32015.792.32$24,822
Apr 19991,0603,69915.102.21$24,174
Mar 19991,2703,65912.471.84$22,563
Feb 19991,2963,6109.981.82$19,496
Jan 19991,4333,60410.381.90$21,722
Dec 19981,2853,9639.201.77$18,850
Nov 19981,4834,81010.892.19$26,663
Oct 19981,4645,21912.421.97$28,460
Sep 19981,4425,15912.592.08$28,899
Aug 19981,4525,44911.301.91$26,801
Jul 19981,7665,68111.742.24$33,443
Jun 19981,8195,88611.242.24$33,614
May 19981,4375,40312.622.21$30,056
Apr 19981,8345,31113.042.51$37,221
Mar 19981,6765,76912.802.31$34,776
Feb 19981,7824,96713.952.30$36,279
Jan 19981,8515,32414.702.15$38,682
Dec 19972,0415,51316.322.41$46,602
Nov 19971,9625,47718.193.09$52,603
Oct 19972,3566,06519.253.15$64,457
Sep 19972,5735,74117.742.95$62,609
Aug 19971,8444,20917.862.55$43,687
Jul 19972,3524,05917.582.25$50,468
Jun 19972,2924,50717.242.26$49,687
May 19972,8914,57618.972.31$65,406
Apr 19972,9264,03217.882.08$60,715
Mar 19972,6963,63518.951.94$58,138
Feb 19971,9583,14020.492.21$47,046
Jan 19972,0232,69623.483.54$57,043
Dec 19962,3113,37423.32$53,893
Nov 19962,4063,69621.97$52,860
Oct 19962,5004,43123.31$58,275
Sep 19962,1414,89922.22$47,573
Aug 19962,4854,43120.26$50,346
Jul 19961,4705,48719.55$28,739
Jun 19961,4045,70118.73$26,297
May 19961,6456,13119.43$31,962
Apr 19961,6725,80121.51$35,965
Mar 19961,6466,08119.38$31,899
Feb 19961,6395,65416.98$27,830
Jan 19961,6395,45417.07$27,978
Dec 19951,6746,26617.19$28,776
Nov 19951,6176,62316.00$25,872
Oct 19951,7996,10815.43$27,759
Sep 19951,6636,56316.18$26,907
Aug 19951,8227,11415.92$29,006
Jul 19951,9937,65415.24$30,373
Jun 19951,8507,60516.41$30,359
May 19952,0077,91417.56$35,243
Apr 19952,0287,52817.73$35,956
Mar 19952,0328,06416.44$33,406
Feb 19951,7907,26116.58$29,678
Jan 19951,8348,19015.92$29,197
Dec 19941,9778,62115.03$29,714
Nov 19941,6668,03215.90$26,489
Oct 19941,6449,09115.58$25,614
Sep 19941,4539,25215.29$22,216
Aug 19941,6419,84016.13$26,469
Jul 19941,2709,73217.56$22,301
Jun 19941,6479,73117.09$28,147
May 19941,27410,36515.88$20,231
Apr 19941,28210,19914.14$18,127
Mar 19941,47210,87612.46$18,341
Feb 19941,2638,75112.50$15,788
Jan 19941,2517,87012.66$15,838
Dec 19931,4418,03512.33$17,768
Nov 19931,2218,13714.49$17,692
Oct 19931,0978,76015.85$17,387
Sep 19931,2718,96315.03$19,103
Aug 19931,4239,18015.66$22,284
Jul 19931,5619,29115.46$24,133
Jun 19931,5743,18716.79$26,427
May 19931,210117.68$21,393
Apr 1993466118.05$8,411
Mar 1993184118.14$3,338
Feb 1993180117.90$3,222
Jan 1993168116.93$2,844

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.

Jan 2026 — as filed, then multipliedworked
Oil                    0 bbl  × $ 59.13 =         $0
Casinghead gas         1 Mcf  × $  8.00 =         $8

────────────────────────────────────────────────────
Month total                                       $8

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/3749 is the state's own key, not one this site invented.