BROOKS UNIT

Operated by FRATELLI EXPLORATION, L.P. (P-5 283900) in the BROOKS (SAN ANGELO) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 4280District 7CField 12244792OilCasinghead gasSaveExport
Value, all time
$1.5 M
Jan 1993 – May 2026
Value, last 12 filed months
$18 k
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 13 leases and 80 wells, and the rule below applies to all of them.

Discovered
1959-04-20
as the register files it
Field class
Oil
the register's own label
Between wells
660 ft
minimum
From a lease line
330 ft
minimum

A drilling unit in this field needs at least 10 acres.

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
OilDisposition38,806 bbl$1,489,306
Casinghead gasProduction91 Mcf$171
Total$1,489,476

37 Mcf of this lease's gas, across 37 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 (42)

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 31.2500, -100.7255. A lease has no coordinate of its own — that point is the mean of its wells, and they span 1.5 miles. 5 wells have no surveyed location and are left out of it.

31.24571, -100.72415 · centre of 37 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%
42 of 42 wells
With a plug date
92.9%
39 of 42 wells
Median depth
1,248 ft
40 wells filed one
Completion to plug
28.2 years
median over 27 wells

What the state filed about each well

On the RRC proration schedule
42100.0%
A plug date is filed
3992.9%
BothOn the schedule and plugged. Neither fact cancels the other.
3992.9%
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

Total depth in feet, 40 of 42 wells. Median 1,248 ft, with the middle half between 1,218 and 1,279 ft; the shallowest is 1,084 ft and the deepest 1,400 ft. The median is published rather than the mean, because a single mis-keyed depth moves a mean and cannot move a median.

When they were last completed

Last completion by decade, 28 of 42 wells, Jun 1959 – Apr 2011. This is the LAST completion filed on each wellbore, not the first — a well recompleted in 2019 counts once, in the 2010s.

Completions filed
Jun 1959 – Apr 2011
28 of 42 wells; 14 filed none
Plug dates filed
Dec 1981 – Mar 2026
39 of 42 wells; 3 filed none

Last completion to plug: a median of 28.2 years across the 27 wells that filed both dates, with the middle half between 23.8 years and 39.3 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

42 wells

42-235006044010WYes
42-235006071021,250 ftAug 2020Yes
42-235006103071,216 ftFeb 2016Yes
42-235006112031,213 ftMar 2009Yes
42-23500613101W1,278 ftMay 1986Yes
42-235100894015WYes
42-2353208530231,225 ftMar 2009Yes
42-2353208720221,171 ftFeb 2026Yes
42-2353210930241,233 ftSep 2013Yes
42-2353232030331,275 ftSep 2013Yes
42-2353237440381,278 ftJun 2012Yes
42-235800782041,245 ftFeb 2026Yes
42-235800804101,400 ftDec 1981Yes
42-235800814151,290 ftDec 1981Yes
42-23500615205W1,172 ftApr 2011Sep 2013Yes
42-2353247040391,348 ftMar 2008Sep 2013Yes
42-2350056360161,147 ftJul 1988Apr 1996Yes
42-2353213750281,275 ftJul 1987Sep 2015Yes
42-235006162061,208 ftDec 1985Jan 2009Yes
42-2353232220321,280 ftJun 1985Dec 2009Yes
42-2350056550141,228 ftApr 1985Aug 2020Yes
42-235002595013W1,326 ftMar 1985Oct 2003Yes
42-2353237340371,370 ftDec 1984Mar 2010Yes
42-2353237250341,317 ftDec 1984Aug 2020Yes
42-2353237750361,314 ftOct 1984Mar 2026Yes
42-235322696071,275 ftJul 1984Mar 2026Yes
42-2353210850261,276 ftMay 1984Jun 2012Yes
42-2353213850291,250 ftApr 1984Yes
42-2353213650301,274 ftMar 1984Mar 2026Yes
42-2353211910311,348 ftFeb 1984Aug 2020Yes
42-235321185271,310 ftSep 1983Aug 2020Yes
42-2353208630251,239 ftAug 1983Jan 2009Yes
42-2353208430191,201 ftJul 1983Aug 2020Yes
42-2353205120181,245 ftApr 1983Oct 2002Yes
42-2353205010201,222 ftFeb 1983Mar 2005Yes
42-2353201130211,127 ftFeb 1983Mar 2009Yes
42-2353201020171,177 ftJan 1983Mar 2009Yes
42-23500552C 1WS1,084 ftJun 1968Jan 2016Yes
42-235006094011W1,267 ftSep 1959Oct 1991Yes
42-235006123081,219 ftAug 1959Mar 2023Yes
42-235006143091,241 ftJun 1959Feb 2026Yes
42-2358008250121,227 ftJun 1959Aug 2020Yes

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 2026195089.753.15$17,501
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 2021169063.483.02$10,728
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 2019193056.272.46$10,860
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 2018169061.443.40$10,383
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 2017162049.292.98$7,985
Sep 20170047.523.09$0
Aug 20170045.373.00$0
Jul 2017163043.873.09$7,151
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 2016167041.622.92$6,951
Jun 20160045.352.69$0
May 20160042.521.99$0
Apr 20160036.561.99$0
Mar 20160033.011.79$0
Feb 2016177026.472.06$4,685
Jan 20160027.352.36$0
Dec 20150032.362.00$0
Nov 20150038.792.17$0
Oct 2015177043.552.43$7,708
Sep 201538042.992.76$1,634
Aug 20150040.162.87$0
Jul 2015174048.152.95$8,378
Jun 20150056.152.88$0
May 20150055.212.96$0
Apr 2015165049.822.71$8,220
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 2014166078.303.90$12,998
Sep 20140086.164.05$0
Aug 20140089.394.04$0
Jul 2014154096.564.18$14,870
Jun 2014179098.164.74$17,571
May 20140094.734.73$0
Apr 20140095.944.81$0
Mar 20140095.895.06$0
Feb 20140097.406.19$0
Jan 2014313090.404.86$28,295
Dec 20130091.824.35$0
Nov 20130088.853.74$0
Oct 20130097.423.78$0
Sep 201300104.113.72$0
Aug 20131620104.253.52$16,889
Jul 201300102.523.72$0
Jun 20130094.403.93$0
May 2013166094.834.15$15,742
Apr 2013176093.964.28$16,537
Mar 20130093.623.91$0
Feb 20130091.233.42$0
Jan 20130091.603.42$0
Dec 20120086.773.42$0
Nov 2012161086.953.62$13,999
Oct 20120089.383.40$0
Sep 20120094.672.92$0
Aug 2012149092.662.91$13,806
Jul 20120085.133.02$0
Jun 2012166079.822.52$13,250
May 20123091.612.49$275
Apr 201200101.652.00$0
Mar 20121590105.052.22$16,703
Feb 20121660101.102.57$16,783
Jan 20120098.092.73$0
Dec 20110096.873.24$0
Nov 2011171095.723.31$16,368
Oct 20110084.983.65$0
Sep 20110083.623.99$0
Aug 20110083.404.15$0
Jul 2011332094.144.52$31,254
Jun 20110092.904.64$0
May 20110098.134.40$0
Apr 20111740105.964.33$18,437
Mar 2011162096.364.06$15,610
Feb 20110085.644.18$0
Jan 20110086.504.59$0
Dec 2010181085.734.35$15,517
Nov 20100080.843.80$0
Oct 20100078.103.51$0
Sep 2010329072.633.98$23,895
Aug 20100073.684.42$0
Jul 20100072.554.74$0
Jun 2010174070.364.91$12,243
May 2010175071.124.24$12,446
Apr 20100081.694.12$0
Mar 2010177078.394.39$13,875
Feb 20100073.585.44$0
Jan 20100074.365.96$0
Dec 2009323071.445.48$23,075
Nov 20090074.593.75$0
Oct 2009172072.544.11$12,477
Sep 2009175065.543.06$11,470
Aug 20091067.423.22$67
Jul 20090061.133.46$0
Jun 2009178066.163.90$11,776
May 2009331054.743.93$18,119
Apr 20090046.773.59$0
Mar 2009172042.144.06$7,248
Feb 2009177032.814.63$5,807
Jan 2009183035.865.37$6,562
Dec 2008184037.105.98$6,826
Nov 20080055.496.86$0
Oct 2008352075.246.92$26,484
Sep 20081660101.767.88$16,892
Aug 20081770114.228.48$20,217
Jul 20081730131.0811.39$22,677
Jun 20083600131.3313.03$47,279
May 20083550123.1711.57$43,725
Apr 20088800110.3110.45$97,073
Mar 20081810101.909.66$18,444
Feb 2008179092.538.77$16,563
Jan 2008177090.388.21$15,997
Dec 20070088.337.30$0
Nov 2007179091.677.29$16,409
Oct 20070082.856.92$0
Sep 2007331075.846.24$25,103
Aug 20070069.066.39$0
Jul 20070070.906.39$0
Jun 2007146062.007.55$9,052
May 20070058.747.85$0
Apr 20070059.617.81$0
Mar 20070056.927.30$0
Feb 2007167055.108.22$9,202
Jan 20070050.306.73$0
Dec 20060056.656.92$0
Nov 20060054.207.62$0
Oct 2006179054.906.01$9,827
Sep 20060060.085.04$0
Aug 20060068.717.34$0
Jul 20060069.376.34$0
Jun 2006250066.286.38$16,570
May 20060066.016.42$0
Apr 200635064.397.36$2,254
Mar 2006178056.707.08$10,093
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 200584055.697.84$4,678
Jun 2005114052.337.38$5,966
May 20050045.226.65$0
Apr 200586049.207.36$4,231
Mar 2005128050.377.15$6,447
Feb 20050045.226.31$0
Jan 20050043.166.32$0
Dec 2004112039.866.75$4,464
Nov 2004179045.286.33$8,105
Oct 200419049.706.52$944
Sep 2004126043.245.28$5,448
Aug 2004103042.375.55$4,364
Jul 200492038.286.08$3,522
Jun 200499036.106.43$3,574
May 20040037.486.49$0
Apr 200485034.475.86$2,930
Mar 20040034.365.53$0
Feb 20040032.455.51$0
Jan 2004123032.036.30$3,940
Dec 200360030.266.30$1,816
Nov 2003150028.804.60$4,320
Oct 20030028.174.76$0
Sep 2003181026.314.75$4,762
Aug 20030029.765.13$0
Jul 2003173029.415.17$5,088
Jun 20030028.565.98$0
May 2003116026.595.97$3,084
Apr 2003123026.675.41$3,280
Mar 20030031.146.10$0
Feb 20030033.487.93$0
Jan 200399030.315.58$3,001
Dec 2002150026.914.85$4,037
Nov 20020024.664.14$0
Oct 2002472026.464.23$12,489
Sep 20020027.443.64$0
Aug 2002235025.963.16$6,101
Jul 2002177024.583.06$4,351
Jun 20020023.733.34$0
May 20020024.663.58$0
Apr 20020023.653.51$0
Mar 20020022.003.10$0
Feb 200255018.222.38$1,002
Jan 20020017.172.38$0
Dec 20010016.932.36$0
Nov 200170018.072.41$1,265
Oct 2001157019.782.53$3,105
Sep 20010024.262.25$0
Aug 200180024.873.05$1,990
Jul 200159023.933.20$1,412
Jun 200127124.563.82$667
May 200144125.524.31$1,127
Apr 2001103124.685.34$2,547
Mar 20010124.545.38$5
Feb 200165127.755.77$1,810
Jan 20010127.478.40$8
Dec 20000126.889.12$9
Nov 200076132.215.66$2,454
Oct 20000131.235.15$5
Sep 20000131.875.19$5
Aug 2000199129.644.54$5,903
Jul 20000128.534.09$4
Jun 20000129.304.40$4
May 2000183127.263.68$4,992
Apr 20000124.513.12$3
Mar 2000216128.422.86$6,142
Feb 20000127.622.73$3
Jan 200086125.272.48$2,176
Dec 19990124.282.42$2
Nov 1999175123.192.43$4,061
Oct 19990120.982.80$3
Sep 199969121.752.62$1,503
Aug 1999171119.262.88$3,296
Jul 19990117.892.37$2
Jun 19990115.942.36$2
May 1999127115.792.32$2,008
Apr 1999280115.102.21$4,230
Mar 1999179112.471.84$2,234
Feb 1999019.981.82$2
Jan 1999170110.381.90$1,767
Dec 1998019.201.77$2
Nov 199897110.892.19$1,059
Oct 1998180112.421.97$2,238
Sep 19980112.592.08$2
Aug 199890111.301.91$1,019
Jul 199880111.742.24$941
Jun 1998104111.242.24$1,171
May 1998114112.622.21$1,441
Apr 199897113.042.51$1,267
Mar 199872112.802.31$924
Feb 199885113.952.30$1,188
Jan 1998182114.702.15$2,678
Dec 1997166116.322.41$2,712
Nov 1997228118.193.09$4,150
Oct 1997184119.253.15$3,545
Sep 1997259117.742.95$4,598
Aug 1997182117.862.55$3,253
Jul 19970117.582.25$2
Jun 1997103117.242.26$1,778
May 1997103118.972.31$1,956
Apr 1997125117.882.08$2,237
Mar 1997116118.951.94$2,200
Feb 1997130120.492.21$2,666
Jan 1997126123.483.54$2,962
Dec 1996140123.32$3,265
Nov 1996153121.97$3,361
Oct 1996286123.31$6,667
Sep 1996155122.22$3,444
Aug 1996294120.26$5,956
Jul 1996239119.55$4,672
Jun 19960118.73$0
May 1996246119.43$4,780
Apr 19960121.51$0
Mar 199694119.38$1,822
Feb 1996175116.98$2,972
Jan 1996181117.07$3,090
Dec 1995345117.19$5,931
Nov 1995165116.00$2,640
Oct 1995394115.43$6,079
Sep 1995252116.18$4,077
Aug 1995123015.92$1,958
Jul 1995182015.24$2,774
Jun 1995181016.41$2,970
May 19950017.56$0
Apr 1995182017.73$3,227
Mar 1995181016.44$2,976
Feb 19950016.58$0
Jan 1995290015.92$4,617
Dec 19940015.03$0
Nov 1994190015.90$3,021
Oct 1994350015.58$5,453
Sep 1994115115.29$1,758
Aug 1994178116.13$2,871
Jul 19941,049117.56$18,420
Jun 1994526117.09$8,989
May 1994953115.88$15,134
Apr 1994351114.14$4,963
Mar 1994879112.46$10,952
Feb 1994524112.50$6,550
Jan 1994357112.66$4,520
Dec 1993825112.33$10,172
Nov 1993498114.49$7,216
Oct 1993814115.85$12,902
Sep 1993523115.03$7,861
Aug 1993669115.66$10,477
Jul 1993695115.46$10,745
Jun 1993860116.79$14,439
May 1993526117.68$9,300
Apr 1993349118.05$6,299
Mar 1993815118.14$14,784
Feb 1993528117.90$9,451
Jan 1993969116.93$16,405

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 2026 — as filed, then multipliedworked
Oil                  195 bbl  × $ 89.75 =    $17,501
Casinghead gas         0 Mcf  × $  3.15 =         $0

────────────────────────────────────────────────────
Month total                                  $17,501

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/4280 is the state's own key, not one this site invented.