MAST

Operated by HARTER, RON (P-5 362923) in the SHAFTER LAKE (YATES) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 20809District 08Field 82570700NGPA filingOilCasinghead gasSaveExport
Value, all time
$531 k
Jan 1993 – May 2026
Value, last 12 filed months
$0
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 136 leases and 215 wells, and the rule below applies to all of them.

Discovered
1952-03-16
as the register files it
Field class
Oil and gas
the register's own label
Between wells
no field rule filed
From a lease line
no field rule filed

The Commission's schedule remark for this field reads: 9/30/97

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
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
OilDisposition6,953 bbl$275,167
Casinghead gasProduction74,951 Mcf$255,918
Total$531,086

21,811 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 32.4060, -102.6485. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.0 miles.

32.40596, -102.64853 · 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
no depth filed
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.

1 well

42-003109411

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 20250063.933.01$0
Jul 20250066.743.32$0
Jun 20250066.483.13$0
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 20240068.993.12$0
Nov 20240069.052.20$0
Oct 20240071.372.28$0
Sep 20240069.612.36$0
Aug 20240075.632.06$0
Jul 20240079.932.15$0
Jun 20240078.082.63$0
May 20240078.812.20$0
Apr 20240084.451.66$0
Mar 20240080.301.55$0
Feb 20240076.091.78$0
Jan 20240073.023.30$0
Dec 20230071.262.61$0
Nov 20230077.892.81$0
Oct 20230085.443.09$0
Sep 20230089.042.74$0
Aug 20230080.522.67$0
Jul 20230074.852.64$0
Jun 20230068.962.26$0
May 20230070.622.23$0
Apr 20230078.122.24$0
Mar 20230072.852.39$0
Feb 20230075.112.47$0
Jan 20230076.533.39$0
Dec 20220076.415.73$0
Nov 20220085.005.65$0
Oct 20220087.185.86$0
Sep 20220084.888.16$0
Aug 20220094.529.13$0
Jul 202200101.587.54$0
Jun 202200115.097.98$0
May 202200109.378.43$0
Apr 202200104.226.84$0
Mar 202200108.885.08$0
Feb 20220091.054.86$0
Jan 20220081.844.54$0
Dec 20210071.323.90$0
Nov 20210077.435.24$0
Oct 20210079.795.71$0
Sep 20210069.865.35$0
Aug 20210066.024.22$0
Jul 20210070.783.98$0
Jun 20210069.493.38$0
May 20210063.483.02$0
Apr 20210060.362.76$0
Mar 20210061.302.72$0
Feb 20210057.805.55$0
Jan 20210050.412.81$0
Dec 20200044.642.68$0
Nov 20200038.772.71$0
Oct 20200036.972.48$0
Sep 20200037.091.99$0
Aug 20200039.982.39$0
Jul 20200038.371.83$0
Jun 20200034.901.69$0
May 20200016.921.81$0
Apr 20200014.751.80$0
Mar 2020152030.341.86$4,612
Feb 20200049.881.98$0
Jan 20200057.252.09$0
Dec 20190059.012.30$0
Nov 20190055.302.75$0
Oct 20190053.472.42$0
Sep 20190055.052.66$0
Aug 20190053.112.30$0
Jul 20190056.272.46$0
Jun 20190052.782.49$0
May 20190058.482.74$0
Apr 20190062.632.75$0
Mar 20190056.803.06$0
Feb 20190050.852.79$0
Jan 20190046.033.23$0
Dec 20180046.594.19$0
Nov 20180052.934.24$0
Oct 20180061.443.40$0
Sep 20180059.543.11$0
Aug 20180059.403.07$0
Jul 20180065.142.93$0
Jun 20180060.183.08$0
May 20180065.382.90$0
Apr 20180063.842.90$0
Mar 20180061.222.79$0
Feb 20180061.782.77$0
Jan 20180062.874.01$0
Dec 20170057.272.92$0
Nov 2017154055.423.12$8,535
Oct 20170049.292.98$0
Sep 20170047.523.09$0
Aug 20170045.373.00$0
Jul 20170043.873.09$0
Jun 20170042.493.09$0
May 20170045.373.26$0
Apr 20170047.933.21$0
Mar 20170046.772.98$0
Feb 20170050.452.95$0
Jan 20170049.413.42$0
Dec 20160048.763.72$0
Nov 2016151042.492.64$6,416
Oct 20160046.193.09$0
Sep 20160041.553.10$0
Aug 20160041.442.92$0
Jul 20160041.622.92$0
Jun 20160045.352.69$0
May 201603542.521.99$70
Apr 20161661836.561.99$6,105
Mar 20160033.011.79$0
Feb 20160026.472.06$0
Jan 20160027.352.36$0
Dec 20150032.362.00$0
Nov 20150038.792.17$0
Oct 20150043.552.43$0
Sep 20150042.992.76$0
Aug 20150140.162.87$3
Jul 20150048.152.95$0
Jun 20150056.152.88$0
May 20150055.212.96$0
Apr 20150049.822.71$0
Mar 20150042.892.93$0
Feb 20150044.662.98$0
Jan 20150043.433.10$0
Dec 2014175054.693.59$9,571
Nov 20140070.464.25$0
Oct 20140078.303.90$0
Sep 20140086.164.05$0
Aug 20140089.394.04$0
Jul 20140096.564.18$0
Jun 20140098.164.74$0
May 20140094.734.73$0
Apr 20140095.944.81$0
Mar 2014175095.895.06$16,781
Feb 20140897.406.19$50
Jan 201401690.404.86$78
Dec 201301091.824.35$44
Nov 20130088.853.74$0
Oct 20130097.423.78$0
Sep 201304104.113.72$15
Aug 2013011104.253.52$39
Jul 201300102.523.72$0
Jun 20130094.403.93$0
May 201308494.834.15$349
Apr 2013019093.964.28$814
Mar 2013025693.623.91$1,002
Feb 20130291.233.42$7
Jan 201301991.603.42$65
Dec 20121665686.773.42$14,595
Nov 201207586.953.62$272
Oct 2012011589.383.40$391
Sep 2012011594.672.92$336
Aug 201207792.662.91$224
Jul 201209485.133.02$284
Jun 2012011479.822.52$287
May 201209691.612.49$239
Apr 2012077101.652.00$154
Mar 20120121105.052.22$269
Feb 20120146101.102.57$375
Jan 2012016998.092.73$462
Dec 2011020296.873.24$654
Nov 201116823395.723.31$16,852
Oct 2011022584.983.65$821
Sep 2011011083.623.99$438
Aug 201109883.404.15$407
Jul 2011024994.144.52$1,125
Jun 2011023192.904.64$1,072
May 2011018898.134.40$828
Apr 20110213105.964.33$923
Mar 201117121696.364.06$17,354
Feb 2011013485.644.18$560
Jan 2011027386.504.59$1,253
Dec 2010024285.734.35$1,052
Nov 2010024780.843.80$937
Oct 2010027278.103.51$954
Sep 2010026872.633.98$1,067
Aug 2010023673.684.42$1,043
Jul 2010014272.554.74$673
Jun 2010015370.364.91$751
May 201016826971.124.24$13,087
Apr 20100081.694.12$0
Mar 201001278.394.39$53
Feb 2010022873.585.44$1,241
Jan 2010023874.365.96$1,419
Dec 2009017671.445.48$965
Nov 2009026874.593.75$1,005
Oct 200903572.544.11$144
Sep 2009024865.543.06$760
Aug 200916817267.423.22$11,880
Jul 2009010261.133.46$353
Jun 2009012566.163.90$487
May 200908454.743.93$330
Apr 2009022846.773.59$818
Mar 2009023742.144.06$962
Feb 2009017732.814.63$820
Jan 2009023035.865.37$1,235
Dec 2008030337.105.98$1,811
Nov 2008026055.496.86$1,784
Oct 2008029075.246.92$2,007
Sep 2008167207101.767.88$18,624
Aug 20080233114.228.48$1,977
Jul 20080203131.0811.39$2,312
Jun 20080194131.3313.03$2,528
May 20080194123.1711.57$2,245
Apr 20080220110.3110.45$2,300
Mar 20080214101.909.66$2,068
Feb 2008016192.538.77$1,412
Jan 2008015290.388.21$1,247
Dec 2007021388.337.30$1,555
Nov 2007026991.677.29$1,961
Oct 200716829082.856.92$15,926
Sep 2007028675.846.24$1,786
Aug 2007030969.066.39$1,974
Jul 2007026570.906.39$1,693
Jun 2007022362.007.55$1,683
May 2007023558.747.85$1,844
Apr 2007027759.617.81$2,162
Mar 2007027756.927.30$2,023
Feb 200715827355.108.22$10,949
Jan 2007028750.306.73$1,931
Dec 2006029256.656.92$2,020
Nov 2006034354.207.62$2,613
Oct 2006031254.906.01$1,876
Sep 2006026560.085.04$1,335
Aug 2006031968.717.34$2,341
Jul 200615622169.376.34$12,223
Jun 2006021766.286.38$1,385
May 2006029366.016.42$1,883
Apr 2006032664.397.36$2,400
Mar 200601856.707.08$127
Feb 2006017157.597.75$1,325
Jan 2006015260.598.93$1,358
Dec 2005026054.9413.42$3,488
Nov 2005027354.6910.59$2,891
Oct 2005030758.3413.80$4,235
Sep 200516624361.4512.08$13,136
Aug 2005024661.519.80$2,410
Jul 2005011755.697.84$918
Jun 2005014152.337.38$1,041
May 2005033645.226.65$2,235
Apr 2005028549.207.36$2,098
Mar 2005037750.377.15$2,697
Feb 2005018645.226.31$1,174
Jan 20058832743.166.32$5,865
Dec 2004028439.866.75$1,917
Nov 2004031645.286.33$2,000
Oct 2004026549.706.52$1,727
Sep 2004024243.245.28$1,279
Aug 200415636342.375.55$8,625
Jul 2004034538.286.08$2,099
Jun 2004037636.106.43$2,419
May 2004039137.486.49$2,539
Apr 2004031334.475.86$1,834
Mar 2004035834.365.53$1,980
Feb 200416539432.455.51$7,525
Jan 2004035032.036.30$2,205
Dec 2003036630.266.30$2,306
Nov 2003024428.804.60$1,121
Oct 2003021728.174.76$1,033
Sep 2003031726.314.75$1,506
Aug 2003032429.765.13$1,662
Jul 2003038529.415.17$1,991
Jun 200314945228.565.98$6,960
May 2003043526.595.97$2,598
Apr 2003037226.675.41$2,012
Mar 2003029731.146.10$1,811
Feb 2003034533.487.93$2,734
Jan 200315733430.315.58$6,623
Dec 2002033526.914.85$1,626
Nov 2002041124.664.14$1,700
Oct 2002045226.464.23$1,912
Sep 2002028227.443.64$1,025
Aug 2002037125.963.16$1,174
Jul 2002017224.583.06$527
Jun 2002016323.733.34$544
May 200214830724.663.58$4,750
Apr 2002027123.653.51$952
Mar 2002039622.003.10$1,229
Feb 2002035018.222.38$831
Jan 2002043017.172.38$1,022
Dec 200116022716.932.36$3,246
Nov 2001024318.072.41$585
Oct 2001034119.782.53$862
Sep 2001034124.262.25$768
Aug 2001035824.873.05$1,093
Jul 2001031823.933.20$1,017
Jun 2001033124.563.82$1,266
May 2001040425.524.31$1,740
Apr 200115327524.685.34$5,243
Mar 2001027524.545.38$1,479
Feb 2001038227.755.77$2,203
Jan 2001037627.478.40$3,158
Dec 2000035626.889.12$3,248
Nov 2000030432.215.66$1,720
Oct 2000041131.235.15$2,115
Sep 200016132531.875.19$6,817
Aug 2000041829.644.54$1,898
Jul 2000043128.534.09$1,763
Jun 2000039629.304.40$1,741
May 2000043827.263.68$1,612
Apr 2000046424.513.12$1,446
Mar 200015439228.422.86$5,498
Feb 2000046227.622.73$1,260
Jan 2000050725.272.48$1,258
Dec 1999054024.282.42$1,309
Nov 199916751523.192.43$5,126
Oct 1999059820.982.80$1,677
Sep 1999030321.752.62$794
Aug 1999015919.262.88$457
Jul 1999025417.892.37$603
Jun 1999034715.942.36$820
May 19990015.792.32$0
Apr 19990015.102.21$0
Mar 19990012.471.84$0
Feb 1999009.981.82$0
Jan 19990010.381.90$0
Dec 1998009.201.77$0
Nov 1998018810.892.19$411
Oct 199816948912.421.97$3,062
Sep 1998047312.592.08$985
Aug 1998046011.301.91$877
Jul 1998047011.742.24$1,052
Jun 1998049011.242.24$1,096
May 1998039912.622.21$880
Apr 19981775413.042.51$2,443
Mar 1998015812.802.31$365
Feb 1998036413.952.30$837
Jan 1998051114.702.15$1,101
Dec 1997049916.322.41$1,203
Nov 199716747818.193.09$4,514
Oct 1997042519.253.15$1,339
Sep 1997040717.742.95$1,203
Aug 1997040317.862.55$1,030
Jul 199715929117.582.25$3,449
Jun 1997019117.242.26$431
May 1997037018.972.31$854
Apr 1997040817.882.08$850
Mar 1997050018.951.94$970
Feb 1997049620.492.21$1,094
Jan 1997056823.483.54$2,011
Dec 199611653323.32$2,705
Nov 1996048821.97$0
Oct 1996055823.31$0
Sep 199612053422.22$2,666
Aug 1996053420.26$0
Jul 1996060119.55$0
Jun 199616855518.73$3,147
May 1996067619.43$0
Apr 1996075421.51$0
Mar 1996081319.38$0
Feb 199612299716.98$2,072
Jan 1996014017.07$0
Dec 1995059117.19$0
Nov 199514971716.00$2,384
Oct 1995027015.43$0
Sep 1995012816.18$0
Aug 199516412815.92$2,611
Jul 1995016415.24$0
Jun 19954326516.41$706
May 199503317.56$0
Apr 1995067217.73$0
Mar 199516881516.44$2,762
Feb 1995091316.58$0
Jan 199503315.92$0
Dec 1994017515.03$0
Nov 1994038315.90$0
Oct 199414554015.58$2,259
Sep 1994052215.29$0
Aug 1994037316.13$0
Jul 1994026917.56$0
Jun 1994031517.09$0
May 199415145315.88$2,398
Apr 1994045014.14$0
Mar 1994046812.46$0
Feb 1994042612.50$0
Jan 199417247612.66$2,178
Dec 1993050212.33$0
Nov 1993046814.49$0
Oct 1993043115.85$0
Sep 199315540715.03$2,330
Aug 1993040315.66$0
Jul 1993040315.46$0
Jun 1993040916.79$0
May 199316646817.68$2,935
Apr 1993030118.05$0
Mar 1993038818.14$0
Feb 1993044317.90$0
Jan 199315542616.93$2,624

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.

Mar 2020 — as filed, then multipliedworked
Oil                  152 bbl  × $ 30.34 =     $4,612
Casinghead gas         0 Mcf  × $  1.86 =         $0

────────────────────────────────────────────────────
Month total                                   $4,612

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. 08/O/20809 is the state's own key, not one this site invented.