MAHAFFEY, A. "B"

Operated by STANOLIND PRODUCTION LLC (P-5 813985) in the DECK (CISCO) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 23747District 08Field 23842500NGPA filingOilCasinghead gasSaveExport
Value, all time
$205 k
Jan 1993 – Jan 2019
Value, last 12 filed months
$759
at the published price for each month
Months reported
313
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 11 leases and 13 wells, and the rule below applies to all of them.

Discovered
1972-09-28
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

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
OilDisposition4,721 bbl$185,714
Casinghead gasProduction72,536 Mcf$19,741
Total$205,455

65,991 Mcf of this lease's gas, across 39 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 (2)

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 31.6474, -101.2251. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.7 miles.

31.64736, -101.22508 · 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%
2 of 2 wells
With a plug date
50.0%
1 of 2 wells
Median depth
8,277 ft
2 wells filed one
Completion to plug
40.8 years
median over 1 well

What the state filed about each well

On the RRC proration schedule
2100.0%
A plug date is filed
150.0%
BothOn the schedule and plugged. Neither fact cancels the other.
150.0%
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

Between 8,204 and 8,350 ft, median 8,277 ft, over the 2 wells that filed a depth.

Completions filed
Jul 1975 – Nov 1978
2 of 2 wells
Plug dates filed
Sep 2019
1 of 2 wells; 1 filed none

Last completion to plug: a median of 40.8 years across the 1 well that filed both dates, with the middle half between 40.8 years and 40.8 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

2 wells

42-4313070428,350 ftNov 1978Sep 2019Yes
42-4313010118,204 ftJul 1975Yes

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 (313)

Volume × price = value, one row per cycle. The price columns are the same series published on the prices page — nothing here is modelled.

313 months

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 20188065.142.93$521
Jun 20180060.183.08$0
May 201801665.382.90$46
Apr 201802463.842.90$70
Mar 201803061.222.79$84
Feb 201801461.782.77$39
Jan 201801562.874.01$60
Dec 201702257.272.92$64
Nov 201702355.423.12$72
Oct 201706149.292.98$182
Sep 201705647.523.09$173
Aug 201702645.373.00$78
Jul 20178043.873.09$351
Jun 20170042.493.09$0
May 2017014745.373.26$480
Apr 2017014247.933.21$456
Mar 201705346.772.98$158
Feb 201709450.452.95$278
Jan 2017020849.413.42$711
Dec 2016013648.763.72$506
Nov 2016013842.492.64$365
Oct 2016012046.193.09$371
Sep 201608641.553.10$267
Aug 201608241.442.92$240
Jul 201609441.622.92$275
Jun 2016012245.352.69$328
May 2016015242.521.99$303
Apr 2016015236.561.99$303
Mar 20167516033.011.79$2,763
Feb 2016013826.472.06$285
Jan 201606627.352.36$156
Dec 2015010032.362.00$200
Nov 2015022538.792.17$488
Oct 2015029343.552.43$711
Sep 2015023942.992.76$659
Aug 2015024140.162.87$692
Jul 2015025048.152.95$736
Jun 2015026556.152.88$764
May 2015026755.212.96$789
Apr 2015022449.822.71$606
Mar 2015026042.892.93$763
Feb 2015023144.662.98$688
Jan 2015026643.433.10$825
Dec 2014025154.693.59$901
Nov 2014026670.464.25$1,131
Oct 2014027778.303.90$1,081
Sep 2014022886.164.05$922
Aug 20146428589.394.04$6,871
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 2013125093.623.91$11,703
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 20129098.092.73$883
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 201111094.144.52$1,036
Jun 20110092.904.64$0
May 20110098.134.40$0
Apr 201100105.964.33$0
Mar 20110096.364.06$0
Feb 20110085.644.18$0
Jan 201132086.504.59$2,768
Dec 20100085.734.35$0
Nov 20100080.843.80$0
Oct 20100078.103.51$0
Sep 20100072.633.98$0
Aug 201094073.684.42$6,926
Jul 20100072.554.74$0
Jun 20100070.364.91$0
May 20100071.124.24$0
Apr 20100081.694.12$0
Mar 20100078.394.39$0
Feb 20100073.585.44$0
Jan 201067074.365.96$4,982
Dec 20090071.445.48$0
Nov 20090074.593.75$0
Oct 20090072.544.11$0
Sep 2009105065.543.06$6,882
Aug 20090067.423.22$0
Jul 20090061.133.46$0
Jun 20090066.163.90$0
May 20090054.743.93$0
Apr 20090046.773.59$0
Mar 2009154042.144.06$6,490
Feb 20090032.814.63$0
Jan 20090035.865.37$0
Dec 20080037.105.98$0
Nov 20080055.496.86$0
Oct 2008172075.246.92$12,941
Sep 200800101.767.88$0
Aug 200800114.228.48$0
Jul 200800131.0811.39$0
Jun 200800131.3313.03$0
May 20081460123.1711.57$17,983
Apr 200800110.3110.45$0
Mar 200800101.909.66$0
Feb 20080092.538.77$0
Jan 20080090.388.21$0
Dec 20070088.337.30$0
Nov 20070091.677.29$0
Oct 2007116082.856.92$9,611
Sep 20070075.846.24$0
Aug 20070069.066.39$0
Jul 20070070.906.39$0
Jun 20070062.007.55$0
May 2007122058.747.85$7,166
Apr 20070059.617.81$0
Mar 20070056.927.30$0
Feb 20070055.108.22$0
Jan 2007118050.306.73$5,935
Dec 20060056.656.92$0
Nov 20060054.207.62$0
Oct 20060054.906.01$0
Sep 2006123060.085.04$7,390
Aug 20060068.717.34$0
Jul 20060069.376.34$0
Jun 20060066.286.38$0
May 20060066.016.42$0
Apr 2006111064.397.36$7,147
Mar 20060056.707.08$0
Feb 20060057.597.75$0
Jan 20060060.598.93$0
Dec 2005106054.9413.42$5,824
Nov 20050054.6910.59$0
Oct 20050058.3413.80$0
Sep 2005102061.4512.08$6,268
Aug 20050061.519.80$0
Jul 20050055.697.84$0
Jun 200586052.337.38$4,500
May 20050045.226.65$0
Apr 20050049.207.36$0
Mar 20050050.377.15$0
Feb 200578045.226.31$3,527
Jan 20050043.166.32$0
Dec 200493039.866.75$3,707
Nov 20040045.286.33$0
Oct 20040049.706.52$0
Sep 20040043.245.28$0
Aug 20040042.375.55$0
Jul 20040038.286.08$0
Jun 200412036.106.43$433
May 20040037.486.49$0
Apr 20040034.475.86$0
Mar 20040034.365.53$0
Feb 20040032.455.51$0
Jan 20040032.036.30$0
Dec 20030030.266.30$0
Nov 20030028.804.60$0
Oct 20030028.174.76$0
Sep 20030026.314.75$0
Aug 20030029.765.13$0
Jul 20030029.415.17$0
Jun 20030028.565.98$0
May 20030026.595.97$0
Apr 20030026.675.41$0
Mar 20030031.146.10$0
Feb 20030033.487.93$0
Jan 20030030.315.58$0
Dec 20020026.914.85$0
Nov 20020024.664.14$0
Oct 20020026.464.23$0
Sep 20020027.443.64$0
Aug 20020025.963.16$0
Jul 20020024.583.06$0
Jun 20020023.733.34$0
May 20020024.663.58$0
Apr 20020023.653.51$0
Mar 20020022.003.10$0
Feb 20020018.222.38$0
Jan 20020017.172.38$0
Dec 20010016.932.36$0
Nov 20010018.072.41$0
Oct 20010019.782.53$0
Sep 20010024.262.25$0
Aug 20010024.873.05$0
Jul 20010023.933.20$0
Jun 20010024.563.82$0
May 20010025.524.31$0
Apr 20010024.685.34$0
Mar 20010024.545.38$0
Feb 20010027.755.77$0
Jan 20010027.478.40$0
Dec 20000026.889.12$0
Nov 20000032.215.66$0
Oct 20000031.235.15$0
Sep 20000031.875.19$0
Aug 20000029.644.54$0
Jul 20000028.534.09$0
Jun 20000029.304.40$0
May 20000027.263.68$0
Apr 20000024.513.12$0
Mar 20000028.422.86$0
Feb 20000027.622.73$0
Jan 20000025.272.48$0
Dec 19990024.282.42$0
Nov 19990023.192.43$0
Oct 19990020.982.80$0
Sep 19990021.752.62$0
Aug 19990019.262.88$0
Jul 19990017.892.37$0
Jun 19990015.942.36$0
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 19980010.892.19$0
Oct 19980012.421.97$0
Sep 19980012.592.08$0
Aug 19980011.301.91$0
Jul 19980011.742.24$0
Jun 19980011.242.24$0
May 19980012.622.21$0
Apr 19980013.042.51$0
Mar 19980012.802.31$0
Feb 19980013.952.30$0
Jan 19980014.702.15$0
Dec 19970016.322.41$0
Nov 19970018.193.09$0
Oct 19970019.253.15$0
Sep 19970017.742.95$0
Aug 19970017.862.55$0
Jul 199775017.582.25$1,319
Jun 19970017.242.26$0
May 19970018.972.31$0
Apr 19970017.882.08$0
Mar 19973018.951.94$57
Feb 19970020.492.21$0
Jan 19970023.483.54$0
Dec 19960023.32$0
Nov 1996168021.97$3,691
Oct 19960023.31$0
Sep 199611022.22$244
Aug 19960020.26$0
Jul 19960019.55$0
Jun 19960018.73$0
May 19960019.43$0
Apr 19960021.51$0
Mar 1996062119.38$0
Feb 199601,22816.98$0
Jan 199602,09217.07$0
Dec 199502,09417.19$0
Nov 199502,37316.00$0
Oct 19951682,28515.43$2,592
Sep 199502,60816.18$0
Aug 199502,63815.92$0
Jul 19951341,05215.24$2,042
Jun 1995571,08316.41$935
May 199501,65817.56$0
Apr 199501,86017.73$0
Mar 19951702,04816.44$2,795
Feb 199501,40816.58$0
Jan 1995096915.92$0
Dec 19941741,79715.03$2,615
Nov 199401,92615.90$0
Oct 199401,49815.58$0
Sep 19941702,02415.29$2,599
Aug 199401,58416.13$0
Jul 199401,88017.56$0
Jun 19941771,78517.09$3,025
May 199401,72315.88$0
Apr 19941701,53714.14$2,404
Mar 199401,16612.46$0
Feb 199402,22712.50$0
Jan 1994767012.66$89
Dec 19931775612.33$210
Nov 19932011,80914.49$2,912
Oct 199301,18315.85$0
Sep 199321,65815.03$30
Aug 19931542,63615.66$2,412
Jul 19931752,63615.46$2,706
Jun 199301,77516.79$0
May 19931801,77817.68$3,182
Apr 199301,83318.05$0
Mar 19931851,63418.14$3,356
Feb 19931861,96517.90$3,329
Jan 1993049416.93$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.

Jul 2018 — as filed, then multipliedworked
Oil                    8 bbl  × $ 65.14 =       $521
Casinghead gas         0 Mcf  × $  2.93 =         $0

────────────────────────────────────────────────────
Month total                                     $521

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/23747 is the state's own key, not one this site invented.