SHOOK-MASON

Operated by FINLEY RESOURCES, INC. (P-5 268602) in the BRAHANEY, NORTHWEST (DEVONIAN) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 66183District 8AField 11313300Hydrogen sulphide fieldOilCasinghead gasSaveExport
Value, all time
$1.7 M
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 19 leases and 37 wells, and the rule below applies to all of them.

Discovered
1982-02-01
as the register files it
Field class
Oil
the register's own label
Between wells
1,320 ft
minimum
From a lease line
660 ft
minimum

A drilling unit in this field needs at least 80 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.

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
OilDisposition96,517 bbl$1,698,323
Casinghead gasProduction13,276 Mcf$5,784
Total$1,704,106

10,943 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 (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 33.2007, -102.9276. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.5 miles.

33.20068, -102.92761 · 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
50.0%
1 of 2 wells
With a plug date
50.0%
1 of 2 wells
Median depth
11,902 ft
2 wells filed one
Completion to plug
1 month
median over 1 well

What the state filed about each well

On the RRC proration schedule
150.0%
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.
150.0%

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 11,898 and 11,905 ft, median 11,902 ft, over the 2 wells that filed a depth.

Completions filed
Sep 1991 – Feb 1992
2 of 2 wells
Plug dates filed
Oct 1991
1 of 2 wells; 1 filed none

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

2 wells

42-501337311A11,905 ftFeb 1992
42-50133374111,898 ftSep 1991Oct 1991Yes

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 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 20110086.504.59$0
Dec 20100085.734.35$0
Nov 20100080.843.80$0
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 20100081.694.12$0
Mar 20100078.394.39$0
Feb 20100073.585.44$0
Jan 20100074.365.96$0
Dec 20090071.445.48$0
Nov 20090074.593.75$0
Oct 20090072.544.11$0
Sep 20090065.543.06$0
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 20090042.144.06$0
Feb 20090032.814.63$0
Jan 20090035.865.37$0
Dec 20080037.105.98$0
Nov 20080055.496.86$0
Oct 20080075.246.92$0
Sep 200800101.767.88$0
Aug 200800114.228.48$0
Jul 200800131.0811.39$0
Jun 200800131.3313.03$0
May 200800123.1711.57$0
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 20070082.856.92$0
Sep 20070075.846.24$0
Aug 20070069.066.39$0
Jul 20070070.906.39$0
Jun 20070062.007.55$0
May 20070058.747.85$0
Apr 20070059.617.81$0
Mar 20070056.927.30$0
Feb 20070055.108.22$0
Jan 20070050.306.73$0
Dec 20060056.656.92$0
Nov 20060054.207.62$0
Oct 20060054.906.01$0
Sep 20060060.085.04$0
Aug 20060068.717.34$0
Jul 20060069.376.34$0
Jun 20060066.286.38$0
May 20060066.016.42$0
Apr 20060064.397.36$0
Mar 20060056.707.08$0
Feb 20060057.597.75$0
Jan 20060060.598.93$0
Dec 20050054.9413.42$0
Nov 20050054.6910.59$0
Oct 20050058.3413.80$0
Sep 20050061.4512.08$0
Aug 20050061.519.80$0
Jul 20050055.697.84$0
Jun 20050052.337.38$0
May 20050045.226.65$0
Apr 20050049.207.36$0
Mar 20050050.377.15$0
Feb 20050045.226.31$0
Jan 20050043.166.32$0
Dec 20040039.866.75$0
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 20040036.106.43$0
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 2003343028.804.60$9,878
Oct 20030028.174.76$0
Sep 20030026.314.75$0
Aug 20030029.765.13$0
Jul 20030029.415.17$0
Jun 2003351028.565.98$10,025
May 20030026.595.97$0
Apr 20030026.675.41$0
Mar 20030031.146.10$0
Feb 20030033.487.93$0
Jan 2003121030.315.58$3,668
Dec 200224026.914.85$646
Nov 200267024.664.14$1,652
Oct 200266026.464.23$1,746
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 200250023.653.51$1,183
Mar 200213022.003.10$286
Feb 2002118018.222.38$2,150
Jan 2002106017.172.38$1,820
Dec 2001462016.932.36$7,822
Nov 2001135018.072.41$2,439
Oct 2001444019.782.53$8,782
Sep 20010024.262.25$0
Aug 20010024.873.05$0
Jul 20010023.933.20$0
Jun 2001131024.563.82$3,217
May 200199025.524.31$2,526
Apr 200149024.685.34$1,209
Mar 2001229024.545.38$5,620
Feb 2001489027.755.77$13,570
Jan 2001144027.478.40$3,956
Dec 2000277026.889.12$7,446
Nov 2000413032.215.66$13,303
Oct 2000250031.235.15$7,808
Sep 2000345031.875.19$10,995
Aug 2000450029.644.54$13,338
Jul 2000493028.534.09$14,065
Jun 2000452029.304.40$13,244
May 2000200027.263.68$5,452
Apr 2000505024.513.12$12,378
Mar 2000456028.422.86$12,960
Feb 2000390027.622.73$10,772
Jan 2000384025.272.48$9,704
Dec 1999520024.282.42$12,626
Nov 1999475023.192.43$11,015
Oct 1999102020.982.80$2,140
Sep 1999417021.752.62$9,070
Aug 1999208019.262.88$4,006
Jul 1999400017.892.37$7,156
Jun 1999402015.942.36$6,408
May 1999457015.792.32$7,216
Apr 19990015.102.21$0
Mar 19990012.471.84$0
Feb 199914809.981.82$1,477
Jan 199919610.381.90$209
Dec 19984409.201.77$405
Nov 199883010.892.19$904
Oct 19986512.421.97$84
Sep 19980812.592.08$17
Aug 19980011.301.91$0
Jul 19980011.742.24$0
Jun 19980011.242.24$0
May 1998100012.622.21$1,262
Apr 1998791713.042.51$1,073
Mar 19981972112.802.31$2,570
Feb 199843421313.952.30$6,544
Jan 199860521314.702.15$9,352
Dec 199747421916.322.41$8,264
Nov 199746116718.193.09$8,901
Oct 199778411419.253.15$15,451
Sep 19976551717.742.95$11,670
Aug 199768412117.862.55$12,525
Jul 199769611417.582.25$12,492
Jun 199769019017.242.26$12,324
May 19971,0277518.972.31$19,655
Apr 199758411717.882.08$10,686
Mar 199771425118.951.94$14,017
Feb 199769021820.492.21$14,619
Jan 199795024723.483.54$23,180
Dec 199676826323.32$17,910
Nov 199669358321.97$15,225
Oct 199657921923.31$13,496
Sep 199683926222.22$18,643
Aug 199686929620.26$17,606
Jul 199689729519.55$17,536
Jun 199685024118.73$15,921
May 199695618219.43$18,575
Apr 199681225021.51$17,466
Mar 19961,00229519.38$19,419
Feb 199695213016.98$16,165
Jan 1996880117.07$15,022
Dec 19951,069417.19$18,376
Nov 1995970616.00$15,520
Oct 199596615215.43$14,905
Sep 199584820216.18$13,721
Aug 19951,13219915.92$18,021
Jul 19951,12630715.24$17,160
Jun 19951,01927116.41$16,722
May 19951,06019317.56$18,614
Apr 19951,11016817.73$19,680
Mar 19951,28826816.44$21,175
Feb 19951,16514316.58$19,316
Jan 19951,71922415.92$27,366
Dec 19941,72524915.03$25,927
Nov 19941,58319515.90$25,170
Oct 19941,79420815.58$27,951
Sep 19941,38022715.29$21,100
Aug 19941,75926516.13$28,373
Jul 19941,86519017.56$32,749
Jun 19942,0519617.09$35,052
May 19942,136115.88$33,920
Apr 19941,7059414.14$24,109
Mar 19942,199112.46$27,400
Feb 19941,49010912.50$18,625
Jan 19941,74616312.66$22,104
Dec 19933,0397912.33$37,471
Nov 19931,41021014.49$20,431
Oct 19932,02026915.85$32,017
Sep 19931,71629915.03$25,791
Aug 19932,12034015.66$33,199
Jul 19932,20234015.46$34,043
Jun 19932,40237016.79$40,330
May 19933,01343817.68$53,270
Apr 19933,24039818.05$58,482
Mar 19932,98136718.14$54,075
Feb 19932,91942317.90$52,250
Jan 19933,29245816.93$55,734

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.

Nov 2003 — as filed, then multipliedworked
Oil                  343 bbl  × $ 28.80 =     $9,878
Casinghead gas         0 Mcf  × $  4.60 =         $0

────────────────────────────────────────────────────
Month total                                   $9,878

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/66183 is the state's own key, not one this site invented.