CASON, WILL

Operated by SOUTHWEST GAS SYSTEMS, INC. (P-5 806190) in the THRIFTY (MARBLE FALLS) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Gas lease lease 18423District 7BField 89779500NGPA filingCondensateGasSaveExport
Value, all time
$303 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
condensate, 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 13 leases and 13 wells, and the rule below applies to all of them.

Discovered
1946-02-07
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: ALLOCATION FORMULA EFFECTIVE 11/01/87.

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
CondensateDisposition57 bbl$1,494
GasProduction84,288 Mcf$301,249
Total$302,743

22,904 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 31.8391, -99.1510. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.0 miles.

31.83912, -99.15096 · 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
100.0%
1 of 1 wells
With a plug date
100.0%
1 of 1 wells
Median depth
2,321 ft
1 wells filed one
Completion to plug
63.4 years
median over 1 well

What the state filed about each well

On the RRC proration schedule
1100.0%
A plug date is filed
1100.0%
BothOn the schedule and plugged. Neither fact cancels the other.
1100.0%
NeitherNo plug date, and not on the schedule.
00.0%

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 2,321 ft.

Completions filed
Jan 1948
1 of 1 wells
Plug dates filed
Jun 2011
1 of 1 wells

Last completion to plug: a median of 63.4 years across the 1 well that filed both dates, with the middle half between 63.4 years and 63.4 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

1 well

42-0490452822,321 ftJan 1948Jun 2011Yes

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 20200030.341.86$0
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 20170055.423.12$0
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 20160042.492.64$0
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 20160042.521.99$0
Apr 20160036.561.99$0
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 20150040.162.87$0
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 20140054.693.59$0
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 20140095.895.06$0
Feb 20140097.406.19$0
Jan 20140090.404.86$0
Dec 20130091.824.35$0
Nov 20130088.853.74$0
Oct 20130097.423.78$0
Sep 201300104.113.72$0
Aug 201300104.253.52$0
Jul 201300102.523.72$0
Jun 20130094.403.93$0
May 20130094.834.15$0
Apr 20130093.964.28$0
Mar 20130093.623.91$0
Feb 20130091.233.42$0
Jan 20130091.603.42$0
Dec 20120086.773.42$0
Nov 20120086.953.62$0
Oct 20120089.383.40$0
Sep 20120094.672.92$0
Aug 20120092.662.91$0
Jul 20120085.133.02$0
Jun 20120079.822.52$0
May 20120091.612.49$0
Apr 201200101.652.00$0
Mar 201200105.052.22$0
Feb 201200101.102.57$0
Jan 20120098.092.73$0
Dec 20110096.873.24$0
Nov 20110095.723.31$0
Oct 20110084.983.65$0
Sep 20110083.623.99$0
Aug 20110083.404.15$0
Jul 20110094.144.52$0
Jun 2011017592.904.64$812
May 2011020598.134.40$903
Apr 20110189105.964.33$819
Mar 2011021896.364.06$885
Feb 2011012485.644.18$518
Jan 2011023686.504.59$1,083
Dec 2010021785.734.35$943
Nov 2010022780.843.80$862
Oct 2010025878.103.51$905
Sep 2010021972.633.98$872
Aug 2010018973.684.42$835
Jul 2010022672.554.74$1,070
Jun 2010023970.364.91$1,174
May 2010017171.124.24$724
Apr 2010025481.694.12$1,047
Mar 2010025578.394.39$1,119
Feb 2010024973.585.44$1,355
Jan 2010026374.365.96$1,569
Dec 2009029071.445.48$1,590
Nov 2009027174.593.75$1,017
Oct 2009029572.544.11$1,213
Sep 2009027565.543.06$843
Aug 2009023367.423.22$750
Jul 2009027361.133.46$946
Jun 2009015066.163.90$584
May 2009028354.743.93$1,111
Apr 2009024846.773.59$890
Mar 2009027242.144.06$1,104
Feb 2009022632.814.63$1,047
Jan 2009028135.865.37$1,509
Dec 2008027637.105.98$1,650
Nov 2008028855.496.86$1,976
Oct 2008027875.246.92$1,924
Sep 20080236101.767.88$1,859
Aug 20080314114.228.48$2,664
Jul 2008030131.0811.39$342
Jun 20080288131.3313.03$3,753
May 20080347123.1711.57$4,016
Apr 20080348110.3110.45$3,638
Mar 20080294101.909.66$2,841
Feb 2008031992.538.77$2,798
Jan 2008037890.388.21$3,102
Dec 2007033188.337.30$2,417
Nov 2007018491.677.29$1,342
Oct 2007027782.856.92$1,917
Sep 2007034375.846.24$2,142
Aug 2007031869.066.39$2,031
Jul 2007033170.906.39$2,114
Jun 2007034162.007.55$2,574
May 2007023058.747.85$1,805
Apr 2007031959.617.81$2,490
Mar 2007037856.927.30$2,760
Feb 2007035655.108.22$2,925
Jan 2007038750.306.73$2,603
Dec 2006040456.656.92$2,795
Nov 2006035554.207.62$2,704
Oct 2006038754.906.01$2,327
Sep 2006033560.085.04$1,687
Aug 2006034268.717.34$2,510
Jul 2006032969.376.34$2,087
Jun 2006034166.286.38$2,177
May 2006038366.016.42$2,461
Apr 2006022364.397.36$1,641
Mar 2006037656.707.08$2,663
Feb 2006017657.597.75$1,364
Jan 2006034460.598.93$3,073
Dec 2005042154.9413.42$5,648
Nov 2005022354.6910.59$2,361
Oct 2005043058.3413.80$5,932
Sep 2005028661.4512.08$3,455
Aug 2005027961.519.80$2,733
Jul 2005048055.697.84$3,765
Jun 2005045852.337.38$3,381
May 2005051345.226.65$3,412
Apr 2005043349.207.36$3,187
Mar 2005049450.377.15$3,535
Feb 2005045445.226.31$2,866
Jan 2005071243.166.32$4,501
Dec 200402839.866.75$189
Nov 2004033545.286.33$2,121
Oct 2004046849.706.52$3,049
Sep 2004042443.245.28$2,240
Aug 2004043642.375.55$2,420
Jul 2004048138.286.08$2,926
Jun 2004045636.106.43$2,933
May 2004045237.486.49$2,936
Apr 2004043434.475.86$2,543
Mar 2004045334.365.53$2,505
Feb 2004041232.455.51$2,270
Jan 2004044332.036.30$2,791
Dec 2003045730.266.30$2,880
Nov 2003045628.804.60$2,095
Oct 2003046928.174.76$2,232
Sep 2003049526.314.75$2,351
Aug 2003054429.765.13$2,791
Jul 2003058329.415.17$3,015
Jun 2003060028.565.98$3,590
May 2003054826.595.97$3,273
Apr 2003032026.675.41$1,730
Mar 2003032931.146.10$2,006
Feb 2003029533.487.93$2,338
Jan 2003031530.315.58$1,758
Dec 2002025726.914.85$1,247
Nov 2002023624.664.14$976
Oct 2002024526.464.23$1,036
Sep 2002024927.443.64$905
Aug 2002022725.963.16$718
Jul 2002030824.583.06$943
Jun 2002032623.733.34$1,088
May 2002034524.663.58$1,236
Apr 2002033023.653.51$1,159
Mar 2002027922.003.10$866
Feb 2002033618.222.38$798
Jan 2002032417.172.38$770
Dec 2001037716.932.36$891
Nov 2001031118.072.41$748
Oct 2001030419.782.53$769
Sep 2001026424.262.25$594
Aug 2001023024.873.05$702
Jul 2001025223.933.20$806
Jun 2001024524.563.82$937
May 2001025825.524.31$1,111
Apr 2001029124.685.34$1,553
Mar 2001030224.545.38$1,624
Feb 2001029027.755.77$1,672
Jan 2001029427.478.40$2,469
Dec 2000027826.889.12$2,536
Nov 2000027432.215.66$1,550
Oct 2000031431.235.15$1,616
Sep 2000032731.875.19$1,696
Aug 2000033829.644.54$1,535
Jul 2000030728.534.09$1,256
Jun 2000033029.304.40$1,451
May 2000035127.263.68$1,292
Apr 2000033624.513.12$1,047
Mar 20005035028.422.86$2,422
Feb 2000033227.622.73$905
Jan 2000034925.272.48$866
Dec 1999032424.282.42$785
Nov 1999035023.192.43$852
Oct 1999037420.982.80$1,049
Sep 1999039121.752.62$1,024
Aug 1999038219.262.88$1,098
Jul 1999037317.892.37$885
Jun 1999039715.942.36$938
May 1999042115.792.32$977
Apr 1999040915.102.21$903
Mar 1999039212.471.84$721
Feb 199905799.981.82$1,053
Jan 1999753110.381.90$1,082
Dec 199804369.201.77$773
Nov 1998045610.892.19$997
Oct 1998049012.421.97$965
Sep 1998051212.592.08$1,066
Aug 1998052611.301.91$1,003
Jul 1998049711.742.24$1,112
Jun 1998051811.242.24$1,159
May 1998053012.622.21$1,169
Apr 1998049713.042.51$1,245
Mar 1998047612.802.31$1,099
Feb 1998044213.952.30$1,016
Jan 1998045914.702.15$989
Dec 1997046916.322.41$1,131
Nov 1997047518.193.09$1,467
Oct 1997050619.253.15$1,594
Sep 1997055317.742.95$1,634
Aug 1997055217.862.55$1,410
Jul 1997055817.582.25$1,254
Jun 1997053417.242.26$1,205
May 1997056318.972.31$1,300
Apr 1997050717.882.08$1,056
Mar 1997053118.951.94$1,030
Feb 1997048020.492.21$1,059
Jan 1997051523.483.54$1,823
Dec 1996061523.32$0
Nov 1996063221.97$0
Oct 1996068523.31$0
Sep 1996075122.22$0
Aug 1996051120.26$0
Jul 1996048719.55$0
Jun 1996045418.73$0
May 1996051519.43$0
Apr 1996049521.51$0
Mar 1996052819.38$0
Feb 1996049316.98$0
Jan 1996052117.07$0
Dec 1995041717.19$0
Nov 1995043216.00$0
Oct 1995046615.43$0
Sep 1995047516.18$0
Aug 1995050715.92$0
Jul 1995045615.24$0
Jun 1995044516.41$0
May 1995041317.56$0
Apr 1995038617.73$0
Mar 1995045716.44$0
Feb 1995039316.58$0
Jan 1995046215.92$0
Dec 1994046015.03$0
Nov 1994045715.90$0
Oct 1994050615.58$0
Sep 1994052715.29$0
Aug 1994054816.13$0
Jul 1994059917.56$0
Jun 1994058017.09$0
May 1994071315.88$0
Apr 1994061714.14$0
Mar 1994067812.46$0
Feb 1994065612.50$0
Jan 1994079212.66$0
Dec 1993030712.33$0
Nov 1993032314.49$0
Oct 1993036015.85$0
Sep 1993031215.03$0
Aug 1993036015.66$0
Jul 1993036315.46$0
Jun 1993035416.79$0
May 1993031917.68$0
Apr 1993026518.05$0
Mar 1993030018.14$0
Feb 1993025517.90$0
Jan 1993025716.93$0

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.

Jun 2011 — as filed, then multipliedworked
Condensate             0 bbl  × $ 92.90 =         $0
Gas                  175 Mcf  × $  4.64 =       $812

────────────────────────────────────────────────────
Month total                                     $812

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. 7B/G/18423 is the state's own key, not one this site invented.