MCMASTER "B"

Operated by JM COX RESOURCES, L.P. (P-5 433075) in the SPRABERRY (TREND AREA) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 10229District 7CField 85279200NGPA filingOilCasinghead gasSaveExport
Value, all time
$945 k
Jan 1993 – Oct 2013
Value, last 12 filed months
$13 k
at the published price for each month
Months reported
250
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 7,461 leases and 22,481 wells, and the rule below applies to all of them.

Discovered
1904-12-31
as the register files it
Field class
Oil and gas
the register's own label
Between wells
0 ft
minimum
From a lease line
330 ft
minimum

A drilling unit in this field needs at least 80 acres. The field rule took effect on 2016-03-08.

The Commission's schedule remark for this field reads: AREA) 85279200.

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
OilDisposition10,302 bbl$378,906
Casinghead gasProduction167,324 Mcf$566,421
Total$945,326

50,972 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 31.6343, -101.5120. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.0 miles.

31.63427, -101.51204 · 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
8,250 ft
1 wells filed one
Completion to plug
30.0 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 8,250 ft.

Completions filed
Jun 1983
1 of 1 wells
Plug dates filed
Jun 2013
1 of 1 wells

Last completion to plug: a median of 30.0 years across the 1 well that filed both dates, with the middle half between 30.0 years and 30.0 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

1 well

42-3833251918,250 ftJun 1983Jun 2013Yes

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 (250)

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

250 months

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 201304994.834.15$203
Apr 201304993.964.28$210
Mar 201304993.623.91$192
Feb 20131324991.233.42$12,210
Jan 201304991.603.42$168
Dec 201204986.773.42$168
Nov 201204986.953.62$178
Oct 201204989.383.40$167
Sep 201204994.672.92$143
Aug 20121754992.662.91$16,358
Jul 201204985.133.02$148
Jun 201204979.822.52$123
May 201204991.612.49$122
Apr 2012049101.652.00$98
Mar 201216749105.052.22$17,652
Feb 2012049101.102.57$126
Jan 201204998.092.73$134
Dec 201104996.873.24$159
Nov 201106695.723.31$219
Oct 201109784.983.65$354
Sep 201107983.623.99$315
Aug 2011011883.404.15$490
Jul 2011036794.144.52$1,658
Jun 2011041792.904.64$1,935
May 201116939998.134.40$18,341
Apr 20110467105.964.33$2,024
Mar 2011037796.364.06$1,530
Feb 2011022085.644.18$920
Jan 2011056586.504.59$2,593
Dec 2010052085.734.35$2,261
Nov 2010049380.843.80$1,871
Oct 2010034178.103.51$1,197
Sep 2010029372.633.98$1,166
Aug 2010025273.684.42$1,114
Jul 201017952072.554.74$15,449
Jun 2010054670.364.91$2,681
May 2010054671.124.24$2,312
Apr 2010029481.694.12$1,212
Mar 2010058378.394.39$2,559
Feb 2010053073.585.44$2,884
Jan 201017838174.365.96$15,508
Dec 200909171.445.48$499
Nov 2009058774.593.75$2,202
Oct 2009048672.544.11$1,998
Sep 200917756765.543.06$13,338
Aug 2009064067.423.22$2,060
Jul 2009031061.133.46$1,074
Jun 2009025466.163.90$989
May 2009045754.743.93$1,794
Apr 2009042046.773.59$1,507
Mar 2009057942.144.06$2,350
Feb 2009048932.814.63$2,266
Jan 2009055735.865.37$2,992
Dec 200818152037.105.98$9,823
Nov 2008047555.496.86$3,259
Oct 2008060075.246.92$4,153
Sep 20080576101.767.88$4,537
Aug 20080617114.228.48$5,234
Jul 20080618131.0811.39$7,039
Jun 2008180591131.3313.03$31,342
May 20080619123.1711.57$7,164
Apr 20080565110.3110.45$5,907
Mar 20080470101.909.66$4,542
Feb 2008057192.538.77$5,008
Jan 200818461990.388.21$21,709
Dec 2007023688.337.30$1,723
Nov 2007036691.677.29$2,669
Oct 200718159382.856.92$19,101
Sep 2007062075.846.24$3,871
Aug 2007062169.066.39$3,967
Jul 2007063070.906.39$4,024
Jun 2007059562.007.55$4,491
May 2007062958.747.85$4,935
Apr 2007062859.617.81$4,902
Mar 200717955856.927.30$14,263
Feb 2007054855.108.22$4,502
Jan 2007055950.306.73$3,760
Dec 2006058856.656.92$4,068
Nov 2006058654.207.62$4,464
Oct 200617662354.906.01$13,409
Sep 2006060060.085.04$3,022
Aug 2006064568.717.34$4,734
Jul 2006064769.376.34$4,104
Jun 2006060566.286.38$3,862
May 200617658566.016.42$15,376
Apr 2006064064.397.36$4,711
Mar 2006061656.707.08$4,363
Feb 2006059557.597.75$4,612
Jan 200617864660.598.93$16,556
Dec 2005067154.9413.42$9,002
Nov 2005048054.6910.59$5,082
Oct 2005068258.3413.80$9,409
Sep 2005067061.4512.08$8,093
Aug 200517767661.519.80$17,510
Jul 2005068555.697.84$5,373
Jun 2005065452.337.38$4,827
May 2005058445.226.65$3,884
Apr 2005059049.207.36$4,343
Mar 200517866650.377.15$13,731
Feb 2005061845.226.31$3,901
Jan 2005067643.166.32$4,274
Dec 2004065739.866.75$4,435
Nov 200417865745.286.33$12,219
Oct 2004066449.706.52$4,326
Sep 2004066043.245.28$3,487
Aug 2004070242.375.55$3,897
Jul 2004071738.286.08$4,362
Jun 200417968736.106.43$10,881
May 2004069637.486.49$4,520
Apr 2004067534.475.86$3,954
Mar 2004069734.365.53$3,855
Feb 200418456432.455.51$9,078
Jan 2004066832.036.30$4,208
Dec 2003070930.266.30$4,468
Nov 2003067228.804.60$3,088
Oct 200317564028.174.76$7,976
Sep 2003069726.314.75$3,310
Aug 2003070529.765.13$3,616
Jul 2003066529.415.17$3,439
Jun 200317254328.565.98$8,161
May 2003060026.595.97$3,584
Apr 2003067026.675.41$3,623
Mar 2003071531.146.10$4,359
Feb 2003067233.487.93$5,326
Jan 2003072030.315.58$4,019
Dec 200218070726.914.85$8,275
Nov 2002068424.664.14$2,830
Oct 2002075426.464.23$3,189
Sep 200217876027.443.64$7,647
Aug 2002076325.963.16$2,414
Jul 2002071724.583.06$2,195
Jun 2002074623.733.34$2,490
May 2002073424.663.58$2,631
Apr 200217872223.653.51$6,746
Mar 2002073022.003.10$2,265
Feb 2002059118.222.38$1,404
Jan 200217467617.172.38$4,594
Dec 2001076416.932.36$1,806
Nov 2001068718.072.41$1,653
Oct 2001074819.782.53$1,892
Sep 200117877324.262.25$6,059
Aug 2001082424.873.05$2,516
Jul 2001085223.933.20$2,724
Jun 200117160724.563.82$6,521
May 2001065225.524.31$2,808
Apr 2001076124.685.34$4,060
Mar 2001079224.545.38$4,258
Feb 200117872927.755.77$9,144
Jan 2001081827.478.40$6,870
Dec 2000083926.889.12$7,654
Nov 2000083732.215.66$4,736
Oct 2000089431.235.15$4,600
Sep 200017581631.875.19$9,809
Aug 2000080829.644.54$3,669
Jul 200017983028.534.09$8,501
Jun 2000084429.304.40$3,711
May 2000089127.263.68$3,279
Apr 2000079924.513.12$2,490
Mar 2000051028.422.86$1,458
Feb 200017765127.622.73$6,664
Jan 2000067425.272.48$1,672
Dec 1999077324.282.42$1,874
Nov 1999075623.192.43$1,840
Oct 1999079920.982.80$2,240
Sep 199917879021.752.62$5,940
Aug 1999085019.262.88$2,444
Jul 1999088717.892.37$2,104
Jun 1999088215.942.36$2,083
May 199917592215.792.32$4,903
Apr 1999085815.102.21$1,895
Mar 199917991112.471.84$3,907
Feb 199906259.981.82$1,136
Jan 1999090510.381.90$1,719
Dec 199808919.201.77$1,580
Nov 1998082810.892.19$1,810
Oct 1998080812.421.97$1,591
Sep 199817279412.592.08$3,819
Aug 1998085511.301.91$1,631
Jul 1998088311.742.24$1,976
Jun 1998079711.242.24$1,783
May 199818283812.622.21$4,146
Apr 1998077113.042.51$1,932
Mar 1998077412.802.31$1,788
Feb 199818674913.952.30$4,317
Jan 1998087614.702.15$1,888
Dec 1997082716.322.41$1,994
Nov 199718179718.193.09$5,754
Oct 1997086819.253.15$2,734
Sep 1997091117.742.95$2,692
Aug 1997089517.862.55$2,286
Jul 199717295517.582.25$5,170
Jun 1997091917.242.26$2,074
May 199717277418.972.31$5,050
Apr 1997075517.882.08$1,573
Mar 1997091018.951.94$1,765
Feb 1997076020.492.21$1,676
Jan 199719088123.483.54$7,580
Dec 1996090023.32$0
Nov 1996086421.97$0
Oct 199618489823.31$4,289
Sep 199601,00022.22$0
Aug 199601,07620.26$0
Jul 199601,05419.55$0
Jun 19961761,03318.73$3,296
May 199601,00819.43$0
Apr 1996092521.51$0
Mar 199618697619.38$3,605
Feb 1996092516.98$0
Jan 1996094017.07$0
Dec 199518787317.19$3,215
Nov 1995090116.00$0
Oct 1995097615.43$0
Sep 19951781,07416.18$2,880
Aug 199501,07615.92$0
Jul 199501,06215.24$0
Jun 199501,07716.41$0
May 19951901,11117.56$3,336
Apr 199501,04217.73$0
Mar 19951601,01716.44$2,630
Feb 1995093416.58$0
Jan 1995099215.92$0
Dec 199418199715.03$2,720
Nov 199401,04315.90$0
Oct 199401,12815.58$0
Sep 19941811,12415.29$2,767
Aug 199401,18316.13$0
Jul 199401,20117.56$0
Jun 19941781,13217.09$3,042
May 199401,16215.88$0
Apr 199401,09314.14$0
Mar 19941821,11812.46$2,268
Feb 1994097012.50$0
Jan 199401,08912.66$0
Dec 19931801,05912.33$2,219
Nov 199301,02714.49$0
Oct 19931811,17715.85$2,869
Sep 199301,27715.03$0
Aug 199301,23415.66$0
Jul 19931871,22715.46$2,891
Jun 199301,21816.79$0
May 199301,22617.68$0
Apr 199301,02118.05$0
Mar 19931781,19118.14$3,229
Feb 199301,04517.90$0
Jan 19931831,29616.93$3,098

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.

May 2013 — as filed, then multipliedworked
Oil                    0 bbl  × $ 94.83 =         $0
Casinghead gas        49 Mcf  × $  4.15 =       $203

────────────────────────────────────────────────────
Month total                                     $203

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. 7C/O/10229 is the state's own key, not one this site invented.