MASTEN, F. O. "20"

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 61993District 8AField 53411001Hydrogen sulphide fieldNGPA filingOilCasinghead gasSaveExport
Value, all time
$1.6 M
Jan 1993 – May 2026
Value, last 12 filed months
$100 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
NGPA5none

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
OilDisposition37,247 bbl$1,591,012
Casinghead gasProduction40,656 Mcf$28,625
Total$1,619,638

32,622 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 (5)

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 33.5000, -102.8731. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.3 miles.

33.49997, -102.87306 · 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
20.0%
1 of 5 wells
With a plug date
20.0%
1 of 5 wells
Median depth
5,150 ft
5 wells filed one
Completion to plug
8.0 years
median over 1 well

What the state filed about each well

On the RRC proration schedule
120.0%
A plug date is filed
120.0%
BothOn the schedule and plugged. Neither fact cancels the other.
120.0%
NeitherNo plug date, and not on the schedule.
480.0%

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

Between 5,083 and 5,200 ft, median 5,150 ft, over the 5 wells that filed a depth.

Completions filed
Nov 1977 – Sep 2002
5 of 5 wells
Plug dates filed
Sep 2010
1 of 5 wells; 4 filed none

Last completion to plug: a median of 8.0 years across the 1 well that filed both dates, with the middle half between 8.0 years and 8.0 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

5 wells

42-0793078815,200 ftSep 2002Sep 2010Yes
42-0793084745,150 ftAug 1999
42-0793116655,200 ftFeb 1980
42-0793082835,087 ftFeb 1978
42-0793081725,083 ftNov 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 202600106.413.05$0
Apr 2026329098.932.87$32,548
Mar 20260089.753.15$0
Feb 20260063.503.75$0
Jan 2026333059.138.00$19,690
Dec 20250056.664.41$0
Nov 20250058.593.93$0
Oct 2025332059.383.30$19,714
Sep 20250062.743.08$0
Aug 2025165063.933.01$10,548
Jul 20250066.743.32$0
Jun 2025265066.483.13$17,617
May 20250060.553.23$0
Apr 20250062.363.54$0
Mar 20250067.704.27$0
Feb 20250070.884.34$0
Jan 2025112074.324.28$8,324
Dec 2024111068.993.12$7,658
Nov 20240069.052.20$0
Oct 2024198071.372.28$14,131
Sep 2024188069.612.36$13,087
Aug 202499075.632.06$7,487
Jul 2024102079.932.15$8,153
Jun 2024102078.082.63$7,964
May 2024199078.812.20$15,683
Apr 20240084.451.66$0
Mar 2024196080.301.55$15,739
Feb 202499076.091.78$7,533
Jan 202498073.023.30$7,156
Dec 2023100071.262.61$7,126
Nov 2023100077.892.81$7,789
Oct 202397085.443.09$8,288
Sep 202398089.042.74$8,726
Aug 2023200080.522.67$16,104
Jul 20230074.852.64$0
Jun 2023197068.962.26$13,585
May 20230070.622.23$0
Apr 2023202078.122.24$15,780
Mar 2023209072.852.39$15,226
Feb 20230075.112.47$0
Jan 2023208076.533.39$15,918
Dec 2022210076.415.73$16,046
Nov 20220085.005.65$0
Oct 2022108087.185.86$9,415
Sep 2022195084.888.16$16,552
Aug 202287094.529.13$8,223
Jul 2022840101.587.54$8,533
Jun 20221720115.097.98$19,795
May 202200109.378.43$0
Apr 20221780104.226.84$18,551
Mar 202200108.885.08$0
Feb 2022179091.054.86$16,298
Jan 202286081.844.54$7,038
Dec 202197071.323.90$6,918
Nov 2021173077.435.24$13,395
Oct 202191079.795.71$7,261
Sep 20210069.865.35$0
Aug 202198066.024.22$6,470
Jul 2021194070.783.98$13,731
Jun 202193069.493.38$6,463
May 20210063.483.02$0
Apr 2021143060.362.76$8,631
Mar 202178061.302.72$4,781
Feb 202196057.805.55$5,549
Jan 2021199050.412.81$10,032
Dec 202094044.642.68$4,196
Nov 20200038.772.71$0
Oct 20200036.972.48$0
Sep 202041037.091.99$1,521
Aug 202018039.982.39$720
Jul 202032038.371.83$1,228
Jun 20200034.901.69$0
May 202015016.921.81$254
Apr 202058014.751.80$856
Mar 202035030.341.86$1,062
Feb 202035049.881.98$1,746
Jan 202070057.252.09$4,008
Dec 201936059.012.30$2,124
Nov 201925055.302.75$1,383
Oct 201965053.472.42$3,476
Sep 201935055.052.66$1,927
Aug 201990053.112.30$4,780
Jul 201927056.272.46$1,519
Jun 201922052.782.49$1,161
May 201921058.482.74$1,228
Apr 20190062.632.75$0
Mar 201917056.803.06$966
Feb 201919050.852.79$966
Jan 20190046.033.23$0
Dec 201814046.594.19$652
Nov 201813052.934.24$688
Oct 20186061.443.40$369
Sep 20189059.543.11$536
Aug 20185059.403.07$297
Jul 20184065.142.93$261
Jun 20187060.183.08$421
May 20187065.382.90$458
Apr 20183063.842.90$192
Mar 20186061.222.79$367
Feb 20183061.782.77$185
Jan 20186062.874.01$377
Dec 20177057.272.92$401
Nov 20177055.423.12$388
Oct 20176049.292.98$296
Sep 201710047.523.09$475
Aug 20177045.373.00$318
Jul 20173043.873.09$132
Jun 20179042.493.09$382
May 20176045.373.26$272
Apr 20176047.933.21$288
Mar 201712046.772.98$561
Feb 20179050.452.95$454
Jan 20173049.413.42$148
Dec 20168048.763.72$390
Nov 20163042.492.64$127
Oct 20166046.193.09$277
Sep 201611041.553.10$457
Aug 20160041.442.92$0
Jul 20163041.622.92$125
Jun 20163045.352.69$136
May 20165042.521.99$213
Apr 201619036.561.99$695
Mar 201610033.011.79$330
Feb 201612026.472.06$318
Jan 201627027.352.36$738
Dec 201544032.362.00$1,424
Nov 201524038.792.17$931
Oct 201581043.552.43$3,528
Sep 201543042.992.76$1,849
Aug 201534040.162.87$1,365
Jul 201577048.152.95$3,708
Jun 201531056.152.88$1,741
May 20150055.212.96$0
Apr 201566049.822.71$3,288
Mar 201590042.892.93$3,860
Feb 201551044.662.98$2,278
Jan 2015132043.433.10$5,733
Dec 201483054.693.59$4,539
Nov 201483070.464.25$5,848
Oct 201442078.303.90$3,289
Sep 201484086.164.05$7,237
Aug 201485089.394.04$7,598
Jul 201484096.564.18$8,111
Jun 201482098.164.74$8,049
May 20140094.734.73$0
Apr 201483095.944.81$7,963
Mar 201420095.895.06$1,918
Feb 201441097.406.19$3,993
Jan 201442090.404.86$3,797
Dec 201383091.824.35$7,621
Nov 201342088.853.74$3,732
Oct 2013105097.423.78$10,229
Sep 2013420104.113.72$4,373
Aug 2013820104.253.52$8,549
Jul 2013840102.523.72$8,612
Jun 201381094.403.93$7,646
May 201343094.834.15$4,078
Apr 201342093.964.28$3,946
Mar 201384093.623.91$7,864
Feb 201383091.233.42$7,572
Jan 201379091.603.42$7,236
Dec 201244086.773.42$3,818
Nov 20129086.953.62$783
Oct 201235089.383.40$3,128
Sep 201234094.672.92$3,219
Aug 201252092.662.91$4,818
Jul 201269085.133.02$5,874
Jun 201259079.822.52$4,709
May 201263091.612.49$5,771
Apr 2012660101.652.00$6,709
Mar 2012880105.052.22$9,244
Feb 2012750101.102.57$7,583
Jan 201274098.092.73$7,259
Dec 201172096.873.24$6,975
Nov 201189095.723.31$8,519
Oct 2011122084.983.65$10,368
Sep 2011125083.623.99$10,453
Aug 2011176083.404.15$14,678
Jul 201190094.144.52$8,473
Jun 201180092.904.64$7,432
May 201195098.134.40$9,322
Apr 2011850105.964.33$9,007
Mar 201184096.364.06$8,094
Feb 201164085.644.18$5,481
Jan 201197086.504.59$8,391
Dec 201056085.734.35$4,801
Nov 20108080.843.80$647
Oct 20100078.103.51$0
Sep 20100072.633.98$0
Aug 20100073.684.42$0
Jul 20100072.554.74$0
Jun 20100070.364.91$0
May 20100071.124.24$0
Apr 201011081.694.12$899
Mar 201058078.394.39$4,547
Feb 201049073.585.44$3,605
Jan 201047074.365.96$3,495
Dec 200953071.445.48$3,786
Nov 200939074.593.75$2,909
Oct 200936072.544.11$2,611
Sep 200925065.543.06$1,639
Aug 200926067.423.22$1,753
Jul 200925061.133.46$1,528
Jun 200921066.163.90$1,389
May 200934054.743.93$1,861
Apr 200929046.773.59$1,356
Mar 200921042.144.06$885
Feb 200929032.814.63$951
Jan 200925035.865.37$897
Dec 200829037.105.98$1,076
Nov 200834055.496.86$1,887
Oct 200825075.246.92$1,881
Sep 2008320101.767.88$3,256
Aug 2008250114.228.48$2,856
Jul 2008460131.0811.39$6,030
Jun 2008210131.3313.03$2,758
May 2008290123.1711.57$3,572
Apr 2008250110.3110.45$2,758
Mar 2008250101.909.66$2,548
Feb 200828092.538.77$2,591
Jan 200832090.388.21$2,892
Dec 200744088.337.30$3,887
Nov 200760091.677.29$5,500
Oct 2007104082.856.92$8,616
Sep 200772075.846.24$5,460
Aug 2007116069.066.39$8,011
Jul 2007102070.906.39$7,232
Jun 2007991862.007.55$6,274
May 2007763758.747.85$4,755
Apr 2007772959.617.81$4,816
Mar 2007763156.927.30$4,552
Feb 2007482255.108.22$2,826
Jan 2007772650.306.73$4,048
Dec 2006772956.656.92$4,563
Nov 2006853154.207.62$4,843
Oct 2006733554.906.01$4,218
Sep 2006643760.085.04$4,032
Aug 2006873268.717.34$6,213
Jul 2006883969.376.34$6,352
Jun 2006651866.286.38$4,423
May 200685066.016.42$5,611
Apr 2006582764.397.36$3,933
Mar 2006562556.707.08$3,352
Feb 2006752257.597.75$4,490
Jan 2006652660.598.93$4,171
Dec 2005662754.9413.42$3,988
Nov 2005562754.6910.59$3,349
Oct 2005763458.3413.80$4,903
Sep 2005933461.4512.08$6,126
Aug 2005733861.519.80$4,863
Jul 2005863455.697.84$5,056
Jun 2005583152.337.38$3,264
May 2005763145.226.65$3,643
Apr 2005783249.207.36$4,073
Mar 2005785250.377.15$4,301
Feb 2005712545.226.31$3,368
Jan 2005732943.166.32$3,334
Dec 2004703039.866.75$2,993
Nov 2004883445.286.33$4,200
Oct 2004863749.706.52$4,515
Sep 2004692843.245.28$3,132
Aug 2004964342.375.55$4,306
Jul 2004823938.286.08$3,376
Jun 2004793236.106.43$3,058
May 20041015237.486.49$4,123
Apr 2004622234.475.86$2,266
Mar 2004832434.365.53$2,985
Feb 20041483532.455.51$4,995
Jan 20041985532.036.30$6,688
Dec 20032306930.266.30$7,395
Nov 20032038028.804.60$6,214
Oct 20032038528.174.76$6,123
Sep 20031869026.314.75$5,321
Aug 20031356229.765.13$4,336
Jul 20031105229.415.17$3,504
Jun 20031105028.565.98$3,441
May 20031154326.595.97$3,315
Apr 20031385626.675.41$3,983
Mar 20031436231.146.10$4,831
Feb 2003953733.487.93$3,474
Jan 20031375530.315.58$4,459
Dec 20021124826.914.85$3,247
Nov 20021014124.664.14$2,660
Oct 20021165326.464.23$3,294
Sep 2002894427.443.64$2,602
Aug 20021416625.963.16$3,869
Jul 20021205924.583.06$3,130
Jun 20021034523.733.34$2,594
May 20021454724.663.58$3,744
Apr 20021476123.653.51$3,691
Mar 200268122.003.10$1,499
Feb 2002923518.222.38$1,759
Jan 2002904417.172.38$1,650
Dec 20011262516.932.36$2,192
Nov 20011565318.072.41$2,946
Oct 2001691619.782.53$1,405
Sep 200112024.262.25$291
Aug 2001105024.873.05$2,611
Jul 200164023.933.20$1,532
Jun 2001115024.563.82$2,824
May 2001101025.524.31$2,578
Apr 2001107124.685.34$2,646
Mar 2001106124.545.38$2,607
Feb 200188227.755.77$2,454
Jan 2001108227.478.40$2,984
Dec 2000108626.889.12$2,958
Nov 2000103432.215.66$3,340
Oct 200097231.235.15$3,040
Sep 2000120431.875.19$3,845
Aug 200094229.644.54$2,795
Jul 200094928.534.09$2,719
Jun 20001261129.304.40$3,740
May 2000971427.263.68$2,696
Apr 20001212124.513.12$3,031
Mar 2000108328.422.86$3,078
Feb 2000120227.622.73$3,320
Jan 2000152425.272.48$3,851
Dec 19991829024.282.42$4,637
Nov 199911412323.192.43$2,943
Oct 199915118420.982.80$3,684
Sep 199914416021.752.62$3,551
Aug 1999975919.262.88$2,038
Jul 199915519617.892.37$3,238
Jun 19992003615.942.36$3,273
May 199920517215.792.32$3,636
Apr 199914313115.102.21$2,449
Mar 19991329312.471.84$1,817
Feb 19991881539.981.82$2,154
Jan 199915111610.381.90$1,788
Dec 199840649.201.77$481
Nov 1998859910.892.19$1,142
Oct 199819416312.421.97$2,730
Sep 199817915112.592.08$2,568
Aug 199820914811.301.91$2,644
Jul 199822011111.742.24$2,831
Jun 199819612811.242.24$2,489
May 19981518812.622.21$2,100
Apr 19981669413.042.51$2,400
Mar 199814810412.802.31$2,135
Feb 199814610913.952.30$2,287
Jan 199822512814.702.15$3,583
Dec 199731216216.322.41$5,482
Nov 199725916618.193.09$5,224
Oct 199722514819.253.15$4,797
Sep 199717816817.742.95$3,654
Aug 199727025717.862.55$5,479
Jul 199722429917.582.25$4,610
Jun 199714917717.242.26$2,968
May 199721120018.972.31$4,464
Apr 199720315717.882.08$3,957
Mar 199719226518.951.94$4,152
Feb 199714018020.492.21$3,266
Jan 199714217923.483.54$3,968
Dec 199617520823.32$4,081
Nov 199619531321.97$4,284
Oct 199616224723.31$3,776
Sep 199617127622.22$3,800
Aug 199612424520.26$2,512
Jul 19967614219.55$1,486
Jun 199610518318.73$1,967
May 19968125319.43$1,574
Apr 19969425721.51$2,022
Mar 19969329319.38$1,802
Feb 19967531816.98$1,274
Jan 19968350717.07$1,417
Dec 19959334317.19$1,599
Nov 19957429316.00$1,184
Oct 19959944515.43$1,528
Sep 19958833316.18$1,424
Aug 199512051915.92$1,910
Jul 19959936115.24$1,509
Jun 199512157416.41$1,986
May 19958046717.56$1,405
Apr 19959049417.73$1,596
Mar 19957246816.44$1,184
Feb 19956142016.58$1,011
Jan 19955871115.92$923
Dec 199411459315.03$1,713
Nov 199413660415.90$2,162
Oct 199410763015.58$1,667
Sep 199410953315.29$1,667
Aug 199410749916.13$1,726
Jul 199417167317.56$3,003
Jun 199411554717.09$1,965
May 199412364215.88$1,953
Apr 199413261414.14$1,866
Mar 199423896612.46$2,965
Feb 19942941,00912.50$3,675
Jan 19943241,10112.66$4,102
Dec 19932371,08112.33$2,922
Nov 199333596714.49$4,854
Oct 19934561,57015.85$7,228
Sep 19933401,28515.03$5,110
Aug 19933511,23415.66$5,497
Jul 19935291,56215.46$8,178
Jun 19933291,16616.79$5,524
May 19932461,12617.68$4,349
Apr 19932051,35718.05$3,700
Mar 19932181,09618.14$3,955
Feb 19933421,38717.90$6,122
Jan 19934011,71016.93$6,789

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.

Apr 2026 — as filed, then multipliedworked
Oil                  329 bbl  × $ 98.93 =    $32,548
Casinghead gas         0 Mcf  × $  2.87 =         $0

────────────────────────────────────────────────────
Month total                                  $32,548

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/61993 is the state's own key, not one this site invented.