MASTEN, F. O.

Operated by CROSS TIMBERS ENERGY, LLC (P-5 190469) 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 61980District 8AField 53411001Hydrogen sulphide fieldNGPA filingOilCasinghead gasSaveExport
Value, all time
$13.0 M
Jan 1993 – May 2026
Value, last 12 filed months
$5 k
at the published price for each month
Months reported
401
no gaps in the span
Streams
2
oil, casinghead 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 568 leases and 7,034 wells, and the rule below applies to all of them.

Discovered
1945-01-17
as the register files it
Field class
Oil
the register's own label
Between wells
880 ft
minimum
From a lease line
440 ft
minimum

A drilling unit in this field needs at least 21.25 acres.

The register flags this field for hydrogen sulphide. That is a poisonous gas that occurs naturally in some formations. The flag is a property of the field as the Commission records it. It is not a measurement taken at this lease, and it is not a statement that gas is escaping anywhere.

The Commission's schedule remark for this field reads: ASSOCIATED GAS FIELD LEVELLAND (SAN ANDRES)

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
NGPA22none

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
OilDisposition333,822 bbl$12,603,404
Casinghead gasProduction178,065 Mcf$367,431
Total$12,970,835

93,318 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 (23)

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 33.4939, -102.8838. A lease has no coordinate of its own — that point is the mean of its wells, and they span 1.6 miles.

33.49616, -102.88436 · 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
43.5%
10 of 23 wells
With a plug date
39.1%
9 of 23 wells
Median depth
5,160 ft
23 wells filed one
Completion to plug
39.6 years
median over 9 wells

What the state filed about each well

On the RRC proration schedule
1043.5%
A plug date is filed
939.1%
BothOn the schedule and plugged. Neither fact cancels the other.
939.1%
NeitherNo plug date, and not on the schedule.
1356.5%

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

Total depth in feet, 23 of 23 wells. Median 5,160 ft, with the middle half between 5,101 and 5,200 ft; the shallowest is 370 ft and the deepest 5,300 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

Last completion by decade, 23 of 23 wells, Oct 1977 – Sep 2010. This is the LAST completion filed on each wellbore, not the first — a well recompleted in 2019 counts once, in the 2010s.

Completions filed
Oct 1977 – Sep 2010
23 of 23 wells
Plug dates filed
Mar 2004 – Aug 2022
9 of 23 wells; 14 filed none

Last completion to plug: a median of 39.6 years across the 9 wells that filed both dates, with the middle half between 10.5 years and 44.0 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

23 wells

42-0793081645,200 ftSep 2010
42-07930863115,150 ftJul 2005Dec 2015Yes
42-0793078115,100 ftApr 2004
42-07930864105,150 ftApr 2004
42-07931075135,200 ftJul 2000
42-07930908125,160 ftOct 1996Jan 2007Yes
42-07932730205,102 ftOct 1993
42-07932727195,140 ftOct 1993
42-07932729225,130 ftSep 1993Aug 2022Yes
42-07932731215,203 ftSep 1993Mar 2004Yes
42-0793082355,086 ftSep 1991
42-079326081WS370 ftAug 1991
42-0793084995,300 ftFeb 1991Yes
42-07931148185,200 ftFeb 1980
42-07931073175,200 ftJun 1979
42-07931074145,200 ftJun 1979Jul 2019Yes
42-07930919155,180 ftAug 1978Aug 2022Yes
42-07930918165,180 ftJul 1978Aug 2022Yes
42-0793084885,170 ftMay 1978
42-0793083375,094 ftFeb 1978
42-0793083165,091 ftJan 1978Aug 2022Yes
42-0793078325,089 ftDec 1977
42-0793081435,200 ftOct 1977May 2017Yes

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 20260059.138.00$0
Dec 20250056.664.41$0
Nov 20250058.593.93$0
Oct 20250059.383.30$0
Sep 20250062.743.08$0
Aug 20252063.933.01$128
Jul 20250066.743.32$0
Jun 202574066.483.13$4,920
May 20250060.553.23$0
Apr 20250062.363.54$0
Mar 20250067.704.27$0
Feb 20250070.884.34$0
Jan 202555074.324.28$4,088
Dec 202454068.993.12$3,725
Nov 20240069.052.20$0
Oct 202499071.372.28$7,066
Sep 202494069.612.36$6,543
Aug 202449075.632.06$3,706
Jul 202451079.932.15$4,076
Jun 202451078.082.63$3,982
May 2024100078.812.20$7,881
Apr 20240084.451.66$0
Mar 202499080.301.55$7,950
Feb 202450076.091.78$3,805
Jan 202449073.023.30$3,578
Dec 202350071.262.61$3,563
Nov 202350077.892.81$3,895
Oct 202348085.443.09$4,101
Sep 202349089.042.74$4,363
Aug 2023100080.522.67$8,052
Jul 20230074.852.64$0
Jun 202399068.962.26$6,827
May 20230070.622.23$0
Apr 2023102078.122.24$7,968
Mar 2023106072.852.39$7,722
Feb 20230075.112.47$0
Jan 2023108076.533.39$8,265
Dec 2022112076.415.73$8,558
Nov 20220085.005.65$0
Oct 202266087.185.86$5,754
Sep 2022156084.888.16$13,241
Aug 202287094.529.13$8,223
Jul 2022840101.587.54$8,533
Jun 20221710115.097.98$19,680
May 202200109.378.43$0
Apr 20221770104.226.84$18,447
Mar 202200108.885.08$0
Feb 2022177091.054.86$16,116
Jan 202285081.844.54$6,956
Dec 202194071.323.90$6,704
Nov 2021163077.435.24$12,621
Oct 202183079.795.71$6,623
Sep 20210069.865.35$0
Aug 202175066.024.22$4,952
Jul 2021156070.783.98$11,042
Jun 202184069.493.38$5,837
May 20210063.483.02$0
Apr 2021200060.362.76$12,072
Mar 202196061.302.72$5,885
Feb 202182057.805.55$4,740
Jan 2021165050.412.81$8,318
Dec 202085044.642.68$3,794
Nov 20200038.772.71$0
Oct 20200036.972.48$0
Sep 2020241037.091.99$8,939
Aug 2020159039.982.39$6,357
Jul 2020295038.371.83$11,319
Jun 20200034.901.69$0
May 2020135016.921.81$2,284
Apr 2020362014.751.80$5,340
Mar 2020140030.341.86$4,248
Feb 2020141049.881.98$7,033
Jan 2020280057.252.09$16,030
Dec 2019144059.012.30$8,497
Nov 2019154055.302.75$8,516
Oct 2019278053.472.42$14,865
Sep 2019140055.052.66$7,707
Aug 2019380053.112.30$20,182
Jul 2019119056.272.46$6,696
Jun 2019124052.782.49$6,545
May 2019226058.482.74$13,216
Apr 20190062.632.75$0
Mar 2019178056.803.06$10,110
Feb 2019183050.852.79$9,306
Jan 20190046.033.23$0
Dec 2018172046.594.19$8,013
Nov 2018182052.934.24$9,633
Oct 2018101061.443.40$6,205
Sep 2018205059.543.11$12,206
Aug 2018132059.403.07$7,841
Jul 2018124065.142.93$8,077
Jun 2018215060.183.08$12,939
May 2018216065.382.90$14,122
Apr 2018107063.842.90$6,831
Mar 2018213061.222.79$13,040
Feb 2018108061.782.77$6,672
Jan 2018205062.874.01$12,888
Dec 2017215057.272.92$12,313
Nov 2017211055.423.12$11,694
Oct 2017214049.292.98$10,548
Sep 2017330047.523.09$15,682
Aug 2017214045.373.00$9,709
Jul 2017105043.873.09$4,606
Jun 2017328042.493.09$13,937
May 2017221045.373.26$10,027
Apr 2017224047.933.21$10,736
Mar 2017434046.772.98$20,298
Feb 2017318050.452.95$16,043
Jan 2017103049.413.42$5,089
Dec 2016304048.763.72$14,823
Nov 2016105042.492.64$4,461
Oct 2016210046.193.09$9,700
Sep 2016531041.553.10$22,063
Aug 20160041.442.92$0
Jul 2016346041.622.92$14,401
Jun 2016328045.352.69$14,875
May 2016330042.521.99$14,032
Apr 2016323036.561.99$11,809
Mar 2016242033.011.79$7,988
Feb 2016223026.472.06$5,903
Jan 2016421027.352.36$11,514
Dec 2015439032.362.00$14,206
Nov 2015218038.792.17$8,456
Oct 2015469043.552.43$20,425
Sep 2015177042.992.76$7,609
Aug 2015163040.162.87$6,546
Jul 2015453048.152.95$21,812
Jun 2015168056.152.88$9,433
May 20150055.212.96$0
Apr 2015373049.822.71$18,583
Mar 2015423042.892.93$18,142
Feb 2015204044.662.98$9,111
Jan 2015567043.433.10$24,625
Dec 2014397054.693.59$21,712
Nov 2014403070.464.25$28,395
Oct 2014201078.303.90$15,738
Sep 2014407086.164.05$35,067
Aug 2014414089.394.04$37,007
Jul 2014404096.564.18$39,010
Jun 2014398098.164.74$39,068
May 20140094.734.73$0
Apr 2014402095.944.81$38,568
Mar 201499095.895.06$9,493
Feb 2014197097.406.19$19,188
Jan 2014200090.404.86$18,080
Dec 2013400091.824.35$36,728
Nov 2013204088.853.74$18,125
Oct 2013509097.423.78$49,587
Sep 20132020104.113.72$21,030
Aug 20133970104.253.52$41,387
Jul 20134080102.523.72$41,828
Jun 2013391094.403.93$36,910
May 2013206094.834.15$19,535
Apr 2013204093.964.28$19,168
Mar 2013406093.623.91$38,010
Feb 2013404091.233.42$36,857
Jan 2013475091.603.42$43,510
Dec 2012547086.773.42$47,463
Nov 2012113086.953.62$9,825
Oct 2012453089.383.40$40,489
Sep 2012448094.672.92$42,412
Aug 2012440092.662.91$40,770
Jul 2012453085.133.02$38,564
Jun 2012414079.822.52$33,045
May 2012428091.612.49$39,209
Apr 20124250101.652.00$43,201
Mar 20125540105.052.22$58,198
Feb 20124410101.102.57$44,585
Jan 2012434098.092.73$42,571
Dec 2011445096.873.24$43,107
Nov 2011569095.723.31$54,465
Oct 2011584084.983.65$49,628
Sep 2011462083.623.99$38,632
Aug 2011725083.404.15$60,465
Jul 2011441094.144.52$41,516
Jun 2011431092.904.64$40,040
May 2011572098.134.40$56,130
Apr 20116260105.964.33$66,331
Mar 2011839096.364.06$80,846
Feb 2011537085.644.18$45,989
Jan 2011734086.504.59$63,491
Dec 2010775085.734.35$66,441
Nov 2010756080.843.80$61,115
Oct 2010897078.103.51$70,056
Sep 2010476072.633.98$34,572
Aug 2010691073.684.42$50,913
Jul 2010699072.554.74$50,712
Jun 2010694070.364.91$48,830
May 2010571071.124.24$40,610
Apr 2010565081.694.12$46,155
Mar 2010871078.394.39$68,278
Feb 2010662073.585.44$48,710
Jan 2010703074.365.96$52,275
Dec 2009848071.445.48$60,581
Nov 2009816074.593.75$60,865
Oct 20091,203072.544.11$87,266
Sep 2009904065.543.06$59,248
Aug 2009910067.423.22$61,352
Jul 2009920061.133.46$56,240
Jun 2009752066.163.90$49,752
May 20091,219054.743.93$66,728
Apr 20091,053046.773.59$49,249
Mar 2009740042.144.06$31,184
Feb 20091,040032.814.63$34,122
Jan 2009882035.865.37$31,629
Dec 20081,023037.105.98$37,953
Nov 20081,206055.496.86$66,921
Oct 2008906075.246.92$68,167
Sep 20081,1600101.767.88$118,042
Aug 20089060114.228.48$103,483
Jul 20081,6530131.0811.39$216,675
Jun 20087530131.3313.03$98,891
May 20081,0550123.1711.57$129,944
Apr 20088840110.3110.45$97,514
Mar 20088960101.909.66$91,302
Feb 20081,041092.538.77$96,324
Jan 20081,188090.388.21$107,371
Dec 20071,150088.337.30$101,580
Nov 2007884091.677.29$81,036
Oct 20071,156082.856.92$95,775
Sep 2007667075.846.24$50,585
Aug 2007992069.066.39$68,508
Jul 2007892070.906.39$63,243
Jun 200793016062.007.55$58,868
May 200785236458.747.85$52,903
Apr 20071,03639959.617.81$64,870
Mar 20071,03142856.927.30$61,810
Feb 200762830655.108.22$37,117
Jan 200799432850.306.73$52,205
Dec 20061,05038856.656.92$62,167
Nov 20061,13642554.207.62$64,809
Oct 200697646954.906.01$56,403
Sep 200685248860.085.04$53,646
Aug 20061,15643568.717.34$82,622
Jul 20061,16753169.376.34$84,323
Jun 200685623766.286.38$58,249
May 20061,123066.016.42$74,129
Apr 200678635564.397.36$53,224
Mar 200676534856.707.08$45,840
Feb 20061,02330757.597.75$61,294
Jan 200688835960.598.93$57,011
Dec 200590037654.9413.42$54,490
Nov 200577237354.6910.59$46,170
Oct 20051,04245958.3413.80$67,123
Sep 20051,27546961.4512.08$84,014
Aug 20051,02852161.519.80$68,336
Jul 20051,30249955.697.84$76,422
Jun 20051,01452652.337.38$56,945
May 20051,31654445.226.65$63,128
Apr 20051,33754649.207.36$69,799
Mar 20051,33244950.377.15$70,305
Feb 20051,19441745.226.31$56,625
Jan 20051,23747943.166.32$56,417
Dec 20041,19150539.866.75$50,883
Nov 20041,51257445.286.33$72,097
Oct 20041,51765549.706.52$79,662
Sep 20041,18849143.245.28$53,964
Aug 20041,56067042.375.55$69,816
Jul 20041,55671238.286.08$63,896
Jun 20041,56770236.106.43$61,085
May 20041,54973937.486.49$62,856
Apr 20041,53259834.475.86$56,311
Mar 20041,59557134.365.53$57,962
Feb 20041,90166732.455.51$65,362
Jan 20041,60367132.036.30$55,571
Dec 20032,08862730.266.30$67,134
Nov 20031,84572828.804.60$56,481
Oct 20031,82877528.174.76$55,183
Sep 20031,82980226.314.75$51,930
Aug 20031,90081829.765.13$60,740
Jul 20031,89389529.415.17$60,301
Jun 20031,87685628.565.98$58,700
May 20031,82083326.595.97$53,369
Apr 20031,74272226.675.41$50,363
Mar 20031,76871031.146.10$59,384
Feb 20031,56564133.487.93$57,477
Jan 20031,80570230.315.58$58,628
Dec 20021,88778126.914.85$54,570
Nov 20021,86979224.664.14$49,366
Oct 20021,86782326.464.23$52,881
Sep 20021,57181527.443.64$46,071
Aug 20021,89287625.963.16$51,888
Jul 20021,88590324.583.06$49,098
Jun 20021,95890323.733.34$49,478
May 20021,80462824.663.58$46,737
Apr 20021,48756523.653.51$37,152
Mar 20021,64566722.003.10$38,260
Feb 20021,61260118.222.38$30,798
Jan 20021,86474117.172.38$33,765
Dec 20011,79356716.932.36$31,696
Nov 20011,51368418.072.41$28,985
Oct 20011,56969319.782.53$32,787
Sep 20011,33022324.262.25$32,768
Aug 20011,59240724.873.05$40,836
Jul 20011,91555823.933.20$47,610
Jun 20011,93766924.563.82$50,131
May 20012,17386825.524.31$59,194
Apr 20012,12582024.685.34$56,820
Mar 20012,33153824.545.38$60,095
Feb 20011,92563627.755.77$57,087
Jan 20012,33977427.478.40$70,753
Dec 20002,31468626.889.12$68,458
Nov 20002,29663832.215.66$77,564
Oct 20002,14883531.235.15$71,379
Sep 20002,12580831.875.19$71,914
Aug 20002,27286729.644.54$71,279
Jul 20002,24082128.534.09$67,265
Jun 20002,03381829.304.40$63,164
May 20002,07188427.263.68$59,708
Apr 20002,07380624.513.12$53,321
Mar 20002,08383128.422.86$61,575
Feb 20002,06077627.622.73$59,013
Jan 20002,00973125.272.48$52,581
Dec 19992,09364024.282.42$52,369
Nov 19992,12548623.192.43$50,462
Oct 19992,12254620.982.80$46,050
Sep 19992,12862121.752.62$47,910
Aug 19992,12653119.262.88$42,474
Jul 19991,90763717.892.37$35,627
Jun 19992,02948915.942.36$33,497
May 19992,21440515.792.32$35,899
Apr 19992,05666715.102.21$32,518
Mar 19992,14565712.471.84$27,956
Feb 19991,9556029.981.82$20,605
Jan 19992,12259910.381.90$23,164
Dec 19981,7868009.201.77$17,850
Nov 19982,08688810.892.19$24,657
Oct 19982,0601,05012.421.97$27,653
Sep 19982,0761,18712.592.08$28,609
Aug 19982,0061,20011.301.91$24,957
Jul 19981,9961,17711.742.24$26,066
Jun 19981,8961,18311.242.24$23,958
May 19981,9691,11012.622.21$27,298
Apr 19981,88997813.042.51$27,083
Mar 19981,95293312.802.31$27,140
Feb 19981,86691113.952.30$28,125
Jan 19981,95492214.702.15$30,711
Dec 19971,59786416.322.41$28,146
Nov 19971,52684018.193.09$30,352
Oct 19971,37892819.253.15$29,450
Sep 19971,31494617.742.95$26,106
Aug 19971,59392917.862.55$30,824
Jul 19971,18784717.582.25$22,771
Jun 19971,18784717.242.26$22,376
May 19971,36384518.972.31$27,807
Apr 19971,33897617.882.08$25,956
Mar 19971,24890318.951.94$25,401
Feb 19971,12893220.492.21$25,169
Jan 19971,19298923.483.54$31,489
Dec 19961,13289123.32$26,398
Nov 19961,2891,07421.97$28,319
Oct 19961,4521,32123.31$33,846
Sep 19961,2251,07422.22$27,220
Aug 19961,0311,10320.26$20,888
Jul 19961,0421,23019.55$20,371
Jun 19961,1951,15418.73$22,382
May 19961,2731,34219.43$24,734
Apr 19961,3371,33021.51$28,759
Mar 19961,3311,29619.38$25,795
Feb 19961,4881,43716.98$25,266
Jan 19961,3901,60317.07$23,727
Dec 19951,2871,34217.19$22,124
Nov 19951,2911,11516.00$20,656
Oct 19951,3341,36115.43$20,584
Sep 19951,2601,31116.18$20,387
Aug 19951,3041,58415.92$20,760
Jul 19951,2501,79715.24$19,050
Jun 19951,1551,97916.41$18,954
May 19951,3132,14517.56$23,056
Apr 19951,4792,05117.73$26,223
Mar 19951,5462,39116.44$25,416
Feb 19951,9702,69316.58$32,663
Jan 19951,2472,11415.92$19,852
Dec 19948351,72515.03$12,550
Nov 19948701,99315.90$13,833
Oct 19948612,08715.58$13,414
Sep 19949212,22415.29$14,082
Aug 19948662,41916.13$13,969
Jul 19948882,54017.56$15,593
Jun 19947182,15617.09$12,271
May 19949632,47215.88$15,292
Apr 19947812,27414.14$11,043
Mar 19949662,55112.46$12,036
Feb 19947642,22812.50$9,550
Jan 19948572,36012.66$10,850
Dec 19937392,11512.33$9,112
Nov 19937412,08214.49$10,737
Oct 19938182,56615.85$12,965
Sep 19935401,68315.03$8,116
Aug 19936152,40815.66$9,631
Jul 19936313,08215.46$9,755
Jun 19936312,86916.79$10,594
May 19938532,27217.68$15,081
Apr 19939043,25418.05$16,317
Mar 19939332,39418.14$16,925
Feb 19938382,06317.90$15,000
Jan 19937922,76316.93$13,409

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.

Aug 2025 — as filed, then multipliedworked
Oil                    2 bbl  × $ 63.93 =       $128
Casinghead gas         0 Mcf  × $  3.01 =         $0

────────────────────────────────────────────────────
Month total                                     $128

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/61980 is the state's own key, not one this site invented.