HALLEY, S. M.

Operated by PENWELL SOUTH OPERATING LLC (P-5 102289) 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 21624District 08Field 38255001Hydrogen sulphide fieldNGPA filingOilCasinghead gasSaveExport
Value, all time
$634 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

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
OilDisposition16,666 bbl$633,876
Casinghead gasProduction141 Mcf$349
Total$634,224

48 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 (4)

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 31.7512, -103.0848. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.2 miles.

31.75156, -103.08451 · 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
75.0%
3 of 4 wells
With a plug date
75.0%
3 of 4 wells
Median depth
2,881 ft
3 wells filed one
Completion to plug
58.7 years
median over 2 wells

What the state filed about each well

On the RRC proration schedule
375.0%
A plug date is filed
375.0%
BothOn the schedule and plugged. Neither fact cancels the other.
375.0%
NeitherNo plug date, and not on the schedule.
125.0%

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 2,859 and 2,901 ft, median 2,881 ft, over the 3 wells that filed a depth.

Completions filed
Nov 1936 – Nov 1948
2 of 4 wells; 2 filed none
Plug dates filed
Jun 1987 – Jul 2001
3 of 4 wells; 1 filed none

Last completion to plug: a median of 58.7 years across the 2 wells that filed both dates, with the middle half between 55.7 years and 61.7 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

4 wells

42-4950582912,881 ftJun 1987Yes
42-495006464
42-495006453W2,859 ftNov 1948Jul 2001Yes
42-495058282W2,901 ftNov 1936Jul 2001Yes

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 201964055.302.75$3,539
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 201328094.834.15$2,655
Apr 201328093.964.28$2,631
Mar 20130093.623.91$0
Feb 201327091.233.42$2,463
Jan 201328091.603.42$2,565
Dec 20120086.773.42$0
Nov 201225086.953.62$2,174
Oct 20120089.383.40$0
Sep 20120094.672.92$0
Aug 20120092.662.91$0
Jul 201222085.133.02$1,873
Jun 201227079.822.52$2,155
May 201226091.612.49$2,382
Apr 2012240101.652.00$2,440
Mar 2012260105.052.22$2,731
Feb 2012500101.102.57$5,055
Jan 201284098.092.73$8,240
Dec 20110096.873.24$0
Nov 201152095.723.31$4,977
Oct 201152084.983.65$4,419
Sep 201155083.623.99$4,599
Aug 201152083.404.15$4,337
Jul 20110094.144.52$0
Jun 2011102092.904.64$9,476
May 2011105098.134.40$10,304
Apr 201100105.964.33$0
Mar 201175096.364.06$7,227
Feb 201153085.644.18$4,539
Jan 20110086.504.59$0
Dec 2010152085.734.35$13,031
Nov 20100080.843.80$0
Oct 201099078.103.51$7,732
Sep 201052072.633.98$3,777
Aug 201051073.684.42$3,758
Jul 201049072.554.74$3,555
Jun 201047070.364.91$3,307
May 201051071.124.24$3,627
Apr 201026081.694.12$2,124
Mar 2010101078.394.39$7,917
Feb 201051073.585.44$3,753
Jan 201075074.365.96$5,577
Dec 20090071.445.48$0
Nov 200950074.593.75$3,730
Oct 200971072.544.11$5,150
Sep 200951065.543.06$3,343
Aug 2009100067.423.22$6,742
Jul 200951061.133.46$3,118
Jun 2009100066.163.90$6,616
May 200977054.743.93$4,215
Apr 200949046.773.59$2,292
Mar 2009126042.144.06$5,310
Feb 200999032.814.63$3,248
Jan 200952035.865.37$1,865
Dec 20080037.105.98$0
Nov 2008131055.496.86$7,269
Oct 200824075.246.92$1,806
Sep 2008720101.767.88$7,327
Aug 2008290114.228.48$3,312
Jul 2008490131.0811.39$6,423
Jun 2008480131.3313.03$6,304
May 2008720123.1711.57$8,868
Apr 20081010110.3110.45$11,141
Mar 2008480101.909.66$4,891
Feb 200873092.538.77$6,755
Jan 2008112090.388.21$10,123
Dec 2007168088.337.30$14,839
Nov 20070091.677.29$0
Oct 200767082.856.92$5,551
Sep 200763075.846.24$4,778
Aug 200761069.066.39$4,213
Jul 200728070.906.39$1,985
Jun 2007146062.007.55$9,052
May 2007165058.747.85$9,692
Apr 20070059.617.81$0
Mar 20070056.927.30$0
Feb 2007162055.108.22$8,926
Jan 20070050.306.73$0
Dec 2006156056.656.92$8,837
Nov 20060054.207.62$0
Oct 2006167054.906.01$9,168
Sep 20060060.085.04$0
Aug 20060068.717.34$0
Jul 20060069.376.34$0
Jun 20060066.286.38$0
May 2006177066.016.42$11,684
Apr 20060064.397.36$0
Mar 2006175056.707.08$9,923
Feb 20060057.597.75$0
Jan 20060060.598.93$0
Dec 20050054.9413.42$0
Nov 2005169054.6910.59$9,243
Oct 20050058.3413.80$0
Sep 20050061.4512.08$0
Aug 2005173061.519.80$10,641
Jul 20050055.697.84$0
Jun 2005167052.337.38$8,739
May 20050045.226.65$0
Apr 20050049.207.36$0
Mar 20050050.377.15$0
Feb 2005139045.226.31$6,286
Jan 20050043.166.32$0
Dec 2004169039.866.75$6,736
Nov 20040045.286.33$0
Oct 2004177049.706.52$8,797
Sep 20040143.245.28$5
Aug 20040142.375.55$6
Jul 20040138.286.08$6
Jun 20040136.106.43$6
May 2004145137.486.49$5,441
Apr 2004177134.475.86$6,107
Mar 20040134.365.53$6
Feb 20040132.455.51$6
Jan 20040132.036.30$6
Dec 2003177130.266.30$5,362
Nov 20030128.804.60$5
Oct 20030128.174.76$5
Sep 20030126.314.75$5
Aug 2003135129.765.13$4,023
Jul 20030129.415.17$5
Jun 20030128.565.98$6
May 2003150126.595.97$3,994
Apr 20030126.675.41$5
Mar 2003146131.146.10$4,553
Feb 20030133.487.93$8
Jan 2003168130.315.58$5,098
Dec 20020126.914.85$5
Nov 20020124.664.14$4
Oct 2002171126.464.23$4,529
Sep 20020127.443.64$4
Aug 2002174125.963.16$4,520
Jul 20020124.583.06$3
Jun 20020123.733.34$3
May 2002173124.663.58$4,270
Apr 20020123.653.51$4
Mar 20020122.003.10$3
Feb 2002169118.222.38$3,082
Jan 20020117.172.38$2
Dec 2001185116.932.36$3,134
Nov 20010118.072.41$2
Oct 2001153119.782.53$3,029
Sep 20010124.262.25$2
Aug 2001176124.873.05$4,380
Jul 20010123.933.20$3
Jun 20010124.563.82$4
May 20010125.524.31$4
Apr 2001177124.685.34$4,374
Mar 20010124.545.38$5
Feb 20010127.755.77$6
Jan 20010127.478.40$8
Dec 2000182126.889.12$4,901
Nov 20000132.215.66$6
Oct 20000131.235.15$5
Sep 2000180131.875.19$5,742
Aug 20000129.644.54$5
Jul 20000128.534.09$4
Jun 2000182129.304.40$5,337
May 20000127.263.68$4
Apr 20000124.513.12$3
Mar 2000185128.422.86$5,261
Feb 20000127.622.73$3
Jan 2000170125.272.48$4,298
Dec 19990124.282.42$2
Nov 19990123.192.43$2
Oct 19990120.982.80$3
Sep 19990121.752.62$3
Aug 1999184119.262.88$3,547
Jul 19990117.892.37$2
Jun 1999186115.942.36$2,967
May 19990115.792.32$2
Apr 1999166115.102.21$2,509
Mar 19990112.471.84$2
Feb 199917719.981.82$1,768
Jan 1999143110.381.90$1,486
Dec 1998019.201.77$2
Nov 19980110.892.19$2
Oct 19980112.421.97$2
Sep 19980112.592.08$2
Aug 19980111.301.91$2
Jul 19980111.742.24$2
Jun 19980111.242.24$2
May 1998170112.622.21$2,148
Apr 19980113.042.51$3
Mar 1998171112.802.31$2,191
Feb 19980113.952.30$2
Jan 19980114.702.15$2
Dec 1997166116.322.41$2,712
Nov 19970118.193.09$3
Oct 1997173119.253.15$3,333
Sep 19970117.742.95$3
Aug 1997345117.862.55$6,164
Jul 19970117.582.25$2
Jun 19970117.242.26$2
May 1997457118.972.31$8,672
Apr 19970117.882.08$2
Mar 19970118.951.94$2
Feb 19970120.492.21$2
Jan 19970123.483.54$4
Dec 1996481123.32$11,217
Nov 19960121.97$0
Oct 19960123.31$0
Sep 19960122.22$0
Aug 19960120.26$0
Jul 19960119.55$0
Jun 1996465118.73$8,709
May 19960119.43$0
Apr 19960121.51$0
Mar 19960119.38$0
Feb 19960116.98$0
Jan 1996481117.07$8,211
Dec 19950117.19$0
Nov 19950116.00$0
Oct 19950115.43$0
Sep 19950116.18$0
Aug 1995463115.92$7,371
Jul 19950115.24$0
Jun 19950116.41$0
May 19950117.56$0
Apr 1995460117.73$8,156
Mar 19950116.44$0
Feb 19950116.58$0
Jan 19950115.92$0
Dec 19940115.03$0
Nov 1994441115.90$7,012
Oct 19940115.58$0
Sep 19940115.29$0
Aug 19940116.13$0
Jul 19940117.56$0
Jun 1994427117.09$7,297
May 19940115.88$0
Apr 19940114.14$0
Mar 1994458112.46$5,707
Feb 19940112.50$0
Jan 19940112.66$0
Dec 19930112.33$0
Nov 1993184114.49$2,666
Oct 19930115.85$0
Sep 19930115.03$0
Aug 19930115.66$0
Jul 1993427115.46$6,601
Jun 19930116.79$0
May 19930117.68$0
Apr 1993315118.05$5,686
Mar 19930118.14$0
Feb 1993478117.90$8,556
Jan 19930116.93$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.

Nov 2019 — as filed, then multipliedworked
Oil                   64 bbl  × $ 55.30 =     $3,539
Casinghead gas         0 Mcf  × $  2.75 =         $0

────────────────────────────────────────────────────
Month total                                   $3,539

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/21624 is the state's own key, not one this site invented.