HALLEY, S. M.

Operated by KRF PRODUCTION COMPANY LLC (P-5 477311) in the HALLEY field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 2428District 08Field 38255001Hydrogen sulphide fieldOilCasinghead gasSaveExport
Value, all time
$983 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
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 41 leases and 611 wells, and the rule below applies to all of them.

Discovered
1939-12-31
as the register files it
Field class
Oil and gas
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.

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.

The Commission's schedule remark for this field reads: OPTIONAL 10 ACRE TRACTS ON WATERFLOOD LEASES 8--59451

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
OilDisposition34,140 bbl$983,055
Casinghead gasProduction44 Mcf$177
Total$983,232

22 Mcf of this lease's gas, across 22 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 (12)

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 31.7280, -103.0645. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.5 miles.

31.72790, -103.06448 · 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
41.7%
5 of 12 wells
With a plug date
16.7%
2 of 12 wells
Median depth
2,807 ft
8 wells filed one
Completion to plug
25.4 years
median over 2 wells

What the state filed about each well

On the RRC proration schedule
541.7%
A plug date is filed
216.7%
BothOn the schedule and plugged. Neither fact cancels the other.
216.7%
NeitherNo plug date, and not on the schedule.
758.3%

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, 8 of 12 wells. Median 2,807 ft, with the middle half between 2,761 and 2,994 ft; the shallowest is 2,717 ft and the deepest 3,093 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, 7 of 12 wells, Apr 1964 – Jun 1985. This is the LAST completion filed on each wellbore, not the first — a well recompleted in 2019 counts once, in the 2010s.

Completions filed
Apr 1964 – Jun 1985
7 of 12 wells; 5 filed none
Plug dates filed
Oct 1987 – Jun 2009
2 of 12 wells; 10 filed none

Last completion to plug: a median of 25.4 years across the 2 wells that filed both dates, with the middle half between 15.5 years and 35.3 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

12 wells

42-495003021BYes
42-4950030322,980 ftYes
42-495003011
42-495003042B
42-495104565W3,035 ft
42-4953192882,717 ftJun 1985
42-495104587W2,761 ftMar 1982Oct 1987Yes
42-4953037672,761 ftNov 1975Yes
42-4953037762,759 ftNov 1975
42-4953036152,853 ftAug 1975
42-495300473Nov 1969
42-495104576W3,093 ftApr 1964Jun 2009Yes

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 202426079.932.15$2,078
Jun 202445078.082.63$3,514
May 202428078.812.20$2,207
Apr 202423084.451.66$1,942
Mar 202446080.301.55$3,694
Feb 202461076.091.78$4,641
Jan 202464073.023.30$4,673
Dec 202380071.262.61$5,701
Nov 202359077.892.81$4,596
Oct 202352085.443.09$4,443
Sep 202361089.042.74$5,431
Aug 202327080.522.67$2,174
Jul 202367074.852.64$5,015
Jun 202326068.962.26$1,793
May 202393070.622.23$6,568
Apr 202383078.122.24$6,484
Mar 202380072.852.39$5,828
Feb 202350075.112.47$3,756
Jan 202343076.533.39$3,291
Dec 202299076.415.73$7,565
Nov 202266085.005.65$5,610
Oct 2022104087.185.86$9,067
Sep 202264084.888.16$5,432
Aug 202285094.529.13$8,034
Jul 2022510101.587.54$5,181
Jun 20221720115.097.98$19,795
May 2022430109.378.43$4,703
Apr 2022200104.226.84$2,084
Mar 2022100108.885.08$1,089
Feb 202274091.054.86$6,738
Jan 2022120081.844.54$9,821
Dec 2021107071.323.90$7,631
Nov 2021104077.435.24$8,053
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 2018104061.443.40$6,390
Sep 20180059.543.11$0
Aug 20180059.403.07$0
Jul 2018193065.142.93$12,572
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 201894062.874.01$5,910
Dec 20170057.272.92$0
Nov 20170055.423.12$0
Oct 2017170049.292.98$8,379
Sep 20170047.523.09$0
Aug 20170045.373.00$0
Jul 20170043.873.09$0
Jun 20170042.493.09$0
May 2017131045.373.26$5,943
Apr 20170047.933.21$0
Mar 20170046.772.98$0
Feb 2017177050.452.95$8,930
Jan 20170049.413.42$0
Dec 20160048.763.72$0
Nov 2016157042.492.64$6,671
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 2016172027.352.36$4,704
Dec 2015150032.362.00$4,854
Nov 20150038.792.17$0
Oct 2015178043.552.43$7,752
Sep 20150042.992.76$0
Aug 2015177040.162.87$7,108
Jul 20150048.152.95$0
Jun 2015177056.152.88$9,939
May 20150055.212.96$0
Apr 2015140049.822.71$6,975
Mar 2015172042.892.93$7,377
Feb 20150044.662.98$0
Jan 2015179043.433.10$7,774
Dec 2014498054.693.59$27,236
Nov 20140070.464.25$0
Oct 2014179078.303.90$14,016
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 2014381090.404.86$34,442
Dec 20130091.824.35$0
Nov 20130088.853.74$0
Oct 20130097.423.78$0
Sep 20132020104.113.72$21,030
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 20060154.906.01$6
Sep 20060160.085.04$5
Aug 2006166168.717.34$11,413
Jul 2006166169.376.34$11,522
Jun 20060166.286.38$6
May 2006161166.016.42$10,634
Apr 2006170164.397.36$10,954
Mar 2006128156.707.08$7,265
Feb 20060157.597.75$8
Jan 2006169160.598.93$10,249
Dec 2005168154.9413.42$9,243
Nov 2005165154.6910.59$9,034
Oct 2005168158.3413.80$9,815
Sep 2005160161.4512.08$9,844
Aug 20050161.519.80$10
Jul 20050155.697.84$8
Jun 20050152.337.38$7
May 20050145.226.65$7
Apr 20050149.207.36$7
Mar 20050150.377.15$7
Feb 20050145.226.31$6
Jan 2005165143.166.32$7,128
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 2004170038.286.08$6,508
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 2004178032.036.30$5,701
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 2003170028.565.98$4,855
May 20030026.595.97$0
Apr 2003157026.675.41$4,187
Mar 20030031.146.10$0
Feb 2003177033.487.93$5,926
Jan 20030030.315.58$0
Dec 2002179026.914.85$4,817
Nov 20020024.664.14$0
Oct 2002189026.464.23$5,001
Sep 20020027.443.64$0
Aug 2002171025.963.16$4,439
Jul 20020024.583.06$0
Jun 2002179023.733.34$4,248
May 20020024.663.58$0
Apr 2002183023.653.51$4,328
Mar 20020022.003.10$0
Feb 20020018.222.38$0
Jan 200279017.172.38$1,356
Dec 2001167016.932.36$2,827
Nov 20010018.072.41$0
Oct 20010019.782.53$0
Sep 20010024.262.25$0
Aug 20010024.873.05$0
Jul 2001113023.933.20$2,704
Jun 20010024.563.82$0
May 20010025.524.31$0
Apr 20010024.685.34$0
Mar 2001345024.545.38$8,466
Feb 20010027.755.77$0
Jan 2001164027.478.40$4,505
Dec 20000026.889.12$0
Nov 2000184032.215.66$5,927
Oct 2000303031.235.15$9,463
Sep 2000148031.875.19$4,717
Aug 2000167029.644.54$4,950
Jul 2000172028.534.09$4,907
Jun 2000167029.304.40$4,893
May 2000167027.263.68$4,552
Apr 2000168024.513.12$4,118
Mar 2000173028.422.86$4,917
Feb 2000173027.622.73$4,778
Jan 20000025.272.48$0
Dec 1999171024.282.42$4,152
Nov 1999174023.192.43$4,035
Oct 1999166020.982.80$3,483
Sep 1999336021.752.62$7,308
Aug 1999180019.262.88$3,467
Jul 1999175017.892.37$3,131
Jun 1999182015.942.36$2,901
May 19990015.792.32$0
Apr 1999184015.102.21$2,778
Mar 1999182012.471.84$2,270
Feb 199917009.981.82$1,697
Jan 1999176010.381.90$1,827
Dec 199817509.201.77$1,610
Nov 1998341010.892.19$3,713
Oct 1998378012.421.97$4,695
Sep 1998216012.592.08$2,719
Aug 1998215011.301.91$2,430
Jul 1998463011.742.24$5,436
Jun 1998217011.242.24$2,439
May 1998215012.622.21$2,713
Apr 1998215013.042.51$2,804
Mar 1998438012.802.31$5,606
Feb 1998220013.952.30$3,069
Jan 1998436014.702.15$6,409
Dec 1997222016.322.41$3,623
Nov 1997219018.193.09$3,984
Oct 1997431019.253.15$8,297
Sep 1997216017.742.95$3,832
Aug 1997212017.862.55$3,786
Jul 1997204017.582.25$3,586
Jun 1997430017.242.26$7,413
May 1997217018.972.31$4,116
Apr 1997205017.882.08$3,665
Mar 1997399018.951.94$7,561
Feb 1997218020.492.21$4,467
Jan 1997214023.483.54$5,025
Dec 1996211023.32$4,921
Nov 1996196021.97$4,306
Oct 1996208023.31$4,848
Sep 1996395022.22$8,777
Aug 1996189020.26$3,829
Jul 1996314019.55$6,139
Jun 1996240018.73$4,495
May 1996182019.43$3,536
Apr 1996375021.51$8,066
Mar 1996213019.38$4,128
Feb 1996179016.98$3,039
Jan 1996211017.07$3,602
Dec 1995565017.19$9,712
Nov 1995172016.00$2,752
Oct 1995184015.43$2,839
Sep 1995361016.18$5,841
Aug 1995208015.92$3,311
Jul 1995203015.24$3,094
Jun 1995381016.41$6,252
May 1995205017.56$3,600
Apr 1995397017.73$7,039
Mar 1995204016.44$3,354
Feb 1995389016.58$6,450
Jan 1995406015.92$6,464
Dec 1994200015.03$3,006
Nov 1994411015.90$6,535
Oct 1994192115.58$2,991
Sep 1994407115.29$6,223
Aug 1994191116.13$3,081
Jul 1994405117.56$7,112
Jun 1994393117.09$6,716
May 1994199115.88$3,160
Apr 1994403114.14$5,698
Mar 1994422112.46$5,258
Feb 19940112.50$0
Jan 1994203112.66$2,570
Dec 1993416112.33$5,129
Nov 1993212114.49$3,072
Oct 1993204115.85$3,233
Sep 1993200115.03$3,006
Aug 1993407115.66$6,374
Jul 1993218115.46$3,370
Jun 1993202116.79$3,392
May 1993409117.68$7,231
Apr 1993214118.05$3,863
Mar 1993216118.14$3,918
Feb 1993417117.90$7,464
Jan 1993206116.93$3,488

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 2024 — as filed, then multipliedworked
Oil                   26 bbl  × $ 79.93 =     $2,078
Casinghead gas         0 Mcf  × $  2.15 =         $0

────────────────────────────────────────────────────
Month total                                   $2,078

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/2428 is the state's own key, not one this site invented.