SUN-HALLEY

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 2437District 08Field 38255001Hydrogen sulphide fieldOilCasinghead gasSaveExport
Value, all time
$2.8 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 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
OilDisposition91,874 bbl$2,772,447
Casinghead gasProduction48 Mcf$207
Total$2,772,654

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 (26)

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 31.7229, -103.0647. A lease has no coordinate of its own — that point is the mean of its wells, and they span 1.1 miles.

31.72260, -103.06671 · 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
38.5%
10 of 26 wells
With a plug date
34.6%
9 of 26 wells
Median depth
2,950 ft
21 wells filed one
Completion to plug
20.3 years
median over 7 wells

What the state filed about each well

On the RRC proration schedule
1038.5%
A plug date is filed
934.6%
BothOn the schedule and plugged. Neither fact cancels the other.
934.6%
NeitherNo plug date, and not on the schedule.
1661.5%

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, 21 of 26 wells. Median 2,950 ft, with the middle half between 2,875 and 3,063 ft; the shallowest is 2,775 ft and the deepest 4,000 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, 17 of 26 wells, Jul 1959 – Jul 1977. This is the LAST completion filed on each wellbore, not the first — a well recompleted in 2019 counts once, in the 2010s.

Completions filed
Jul 1959 – Jul 1977
17 of 26 wells; 9 filed none
Plug dates filed
Jul 1984 – Jan 1993
9 of 26 wells; 17 filed none

Last completion to plug: a median of 20.3 years across the 7 wells that filed both dates, with the middle half between 18.1 years and 21.0 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

26 wells

42-4950537272,866 ftYes
42-49505377102,876 ftJul 1984Yes
42-4950538011W2,889 ftJan 1993Yes
42-495053653
42-495053674W2,870 ft
42-495053685
42-495053706
42-495053748
42-4950538212
42-4950536114,000 ftJul 1977Jul 1984Yes
42-49530380252,804 ftOct 1975
42-49530381262,810 ftOct 1975
42-49530344202,887 ftMay 1975
42-495053632CW2,875 ftApr 1973
42-49530056182,901 ftDec 1969
42-49530057192,775 ftDec 1969
42-4951092117W3,025 ftApr 1969Mar 1985Yes
42-49510393143,255 ftJul 1964
42-49510394153,000 ftJul 1964
42-49510395162,950 ftJul 1964
42-495103903W3,100 ftJun 1964Jan 1993Yes
42-495103926W3,117 ftMay 1964Jul 1984Yes
42-495103915W3,063 ftMay 1964May 1985Yes
42-495103882W3,040 ftMay 1964May 1985Yes
42-495103891W3,124 ftApr 1964Jul 1984Yes
42-49505384132,969 ftJul 1959

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 202463071.372.28$4,496
Sep 202462069.612.36$4,316
Aug 2024102075.632.06$7,714
Jul 2024105079.932.15$8,393
Jun 2024178078.082.63$13,898
May 2024117078.812.20$9,221
Apr 202492084.451.66$7,769
Mar 2024139080.301.55$11,162
Feb 2024185076.091.78$14,077
Jan 2024191073.023.30$13,947
Dec 2023240071.262.61$17,102
Nov 2023236077.892.81$18,382
Oct 2023207085.443.09$17,686
Sep 2023244089.042.74$21,726
Aug 2023108080.522.67$8,696
Jul 2023266074.852.64$19,910
Jun 2023105068.962.26$7,241
May 2023372070.622.23$26,271
Apr 2023334078.122.24$26,092
Mar 2023321072.852.39$23,385
Feb 2023199075.112.47$14,947
Jan 2023171076.533.39$13,087
Dec 2022397076.415.73$30,335
Nov 2022263085.005.65$22,355
Oct 2022417087.185.86$36,354
Sep 2022255084.888.16$21,644
Aug 2022342094.529.13$32,326
Jul 20222030101.587.54$20,621
Jun 20221720115.097.98$19,795
May 20222430109.378.43$26,577
Apr 2022610104.226.84$6,357
Mar 20221960108.885.08$21,340
Feb 2022295091.054.86$26,860
Jan 2022481081.844.54$39,365
Dec 2021427071.323.90$30,454
Nov 2021414077.435.24$32,056
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 2020372034.901.69$12,983
May 20200016.921.81$0
Apr 20200014.751.80$0
Mar 20200030.341.86$0
Feb 2020179049.881.98$8,929
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 2019169058.482.74$9,883
Apr 20190062.632.75$0
Mar 20190056.803.06$0
Feb 2019172050.852.79$8,746
Jan 20190046.033.23$0
Dec 2018184046.594.19$8,573
Nov 20180052.934.24$0
Oct 201875061.443.40$4,608
Sep 2018163059.543.11$9,705
Aug 20180059.403.07$0
Jul 2018181065.142.93$11,790
Jun 20180060.183.08$0
May 2018165065.382.90$10,788
Apr 20180063.842.90$0
Mar 20180061.222.79$0
Feb 2018173061.782.77$10,688
Jan 201874062.874.01$4,652
Dec 2017169057.272.92$9,679
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 2017164045.373.26$7,441
Apr 20170047.933.21$0
Mar 20170046.772.98$0
Feb 20170050.452.95$0
Jan 2017151049.413.42$7,461
Dec 2016340048.763.72$16,578
Nov 20160042.492.64$0
Oct 2016335046.193.09$15,474
Sep 20160041.553.10$0
Aug 20160041.442.92$0
Jul 20160041.622.92$0
Jun 2016168045.352.69$7,619
May 2016186042.521.99$7,909
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 2015167040.162.87$6,707
Jul 20150048.152.95$0
Jun 20150056.152.88$0
May 2015494055.212.96$27,274
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 2014376090.404.86$33,990
Dec 2013478091.824.35$43,890
Nov 20130088.853.74$0
Oct 20130097.423.78$0
Sep 20134080104.113.72$42,477
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 2007163155.108.22$8,990
Jan 20070150.306.73$7
Dec 2006165156.656.92$9,354
Nov 2006163154.207.62$8,842
Oct 2006159154.906.01$8,735
Sep 2006338160.085.04$20,312
Aug 2006168168.717.34$11,551
Jul 2006168169.376.34$11,661
Jun 2006174166.286.38$11,539
May 2006167166.016.42$11,030
Apr 2006172164.397.36$11,082
Mar 2006171156.707.08$9,703
Feb 2006165157.597.75$9,510
Jan 2006170160.598.93$10,309
Dec 2005321154.9413.42$17,649
Nov 2005165154.6910.59$9,034
Oct 2005340158.3413.80$19,849
Sep 2005163161.4512.08$10,028
Aug 2005170161.519.80$10,467
Jul 2005342155.697.84$19,054
Jun 2005341152.337.38$17,852
May 2005338145.226.65$15,291
Apr 2005169149.207.36$8,322
Mar 2005327150.377.15$16,478
Feb 2005334145.226.31$15,110
Jan 2005333143.166.32$14,379
Dec 2004340039.866.75$13,552
Nov 2004172045.286.33$7,788
Oct 2004348049.706.52$17,296
Sep 2004347043.245.28$15,004
Aug 2004339042.375.55$14,363
Jul 2004341038.286.08$13,053
Jun 20040036.106.43$0
May 2004171037.486.49$6,409
Apr 2004341034.475.86$11,754
Mar 2004174034.365.53$5,979
Feb 2004536032.455.51$17,393
Jan 20040032.036.30$0
Dec 2003342030.266.30$10,349
Nov 2003331028.804.60$9,533
Oct 2003344028.174.76$9,690
Sep 2003374026.314.75$9,840
Aug 2003350029.765.13$10,416
Jul 20030029.415.17$0
Jun 2003353028.565.98$10,082
May 2003175026.595.97$4,653
Apr 20030026.675.41$0
Mar 2003330031.146.10$10,276
Feb 2003341033.487.93$11,417
Jan 2003340030.315.58$10,305
Dec 2002489026.914.85$13,159
Nov 2002344024.664.14$8,483
Oct 2002339026.464.23$8,970
Sep 2002511027.443.64$14,022
Aug 2002346025.963.16$8,982
Jul 2002352024.583.06$8,652
Jun 2002334023.733.34$7,926
May 2002512024.663.58$12,626
Apr 2002499023.653.51$11,801
Mar 2002371022.003.10$8,162
Feb 2002505018.222.38$9,201
Jan 2002101017.172.38$1,734
Dec 2001514016.932.36$8,702
Nov 2001362018.072.41$6,541
Oct 2001514019.782.53$10,167
Sep 2001520024.262.25$12,615
Aug 2001535024.873.05$13,305
Jul 2001501023.933.20$11,989
Jun 2001482024.563.82$11,838
May 2001343025.524.31$8,753
Apr 20010024.685.34$0
Mar 2001664024.545.38$16,295
Feb 2001172027.755.77$4,773
Jan 2001322027.478.40$8,845
Dec 2000156026.889.12$4,193
Nov 2000163032.215.66$5,250
Oct 2000159031.235.15$4,966
Sep 2000493031.875.19$15,712
Aug 2000498029.644.54$14,761
Jul 2000688028.534.09$19,629
Jun 2000501029.304.40$14,679
May 2000343027.263.68$9,350
Apr 2000347024.513.12$8,505
Mar 2000545028.422.86$15,489
Feb 2000347027.622.73$9,584
Jan 2000644025.272.48$16,274
Dec 1999695024.282.42$16,875
Nov 1999374023.192.43$8,673
Oct 1999535020.982.80$11,224
Sep 1999526021.752.62$11,441
Aug 1999371019.262.88$7,145
Jul 1999352017.892.37$6,297
Jun 1999542015.942.36$8,639
May 1999177015.792.32$2,795
Apr 1999710015.102.21$10,721
Mar 1999710012.471.84$8,854
Feb 199935809.981.82$3,573
Jan 1999358010.381.90$3,716
Dec 199836509.201.77$3,358
Nov 1998676010.892.19$7,362
Oct 1998916012.421.97$11,377
Sep 19980012.592.08$0
Aug 1998478011.301.91$5,401
Jul 1998945011.742.24$11,094
Jun 1998467011.242.24$5,249
May 1998940012.622.21$11,863
Apr 1998470013.042.51$6,129
Mar 1998474012.802.31$6,067
Feb 1998482013.952.30$6,724
Jan 1998957014.702.15$14,068
Dec 1997474016.322.41$7,736
Nov 1997950018.193.09$17,281
Oct 1997943019.253.15$18,153
Sep 1997474017.742.95$8,409
Aug 1997464017.862.55$8,287
Jul 1997931017.582.25$16,367
Jun 1997938017.242.26$16,171
May 1997477018.972.31$9,049
Apr 1997963017.882.08$17,218
Mar 1997912018.951.94$17,282
Feb 1997946020.492.21$19,384
Jan 1997488023.483.54$11,458
Dec 1996471023.32$10,984
Nov 1996469021.97$10,304
Oct 1996941023.31$21,935
Sep 1996449022.22$9,977
Aug 1996436020.26$8,833
Jul 1996436019.55$8,524
Jun 1996843018.73$15,789
May 1996450019.43$8,744
Apr 1996926021.51$19,918
Mar 1996480019.38$9,302
Feb 1996453016.98$7,692
Jan 1996476017.07$8,125
Dec 1995894017.19$15,368
Nov 1995451016.00$7,216
Oct 1995470015.43$7,252
Sep 1995458016.18$7,410
Aug 1995466015.92$7,419
Jul 1995905015.24$13,792
Jun 1995466016.41$7,647
May 1995901017.56$15,822
Apr 1995466017.73$8,262
Mar 1995881016.44$14,484
Feb 1995923016.58$15,303
Jan 1995430015.92$6,846
Dec 1994452015.03$6,794
Nov 1994899015.90$14,294
Oct 1994449115.58$6,995
Sep 1994475115.29$7,263
Aug 1994846116.13$13,646
Jul 1994886117.56$15,558
Jun 1994440117.09$7,520
May 1994462115.88$7,337
Apr 1994454114.14$6,420
Mar 1994914112.46$11,388
Feb 1994479112.50$5,988
Jan 1994464112.66$5,874
Dec 1993918112.33$11,319
Nov 1993950114.49$13,766
Oct 1993468115.85$7,418
Sep 1993457115.03$6,869
Aug 1993933115.66$14,611
Jul 1993472115.46$7,297
Jun 1993454116.79$7,623
May 1993928117.68$16,407
Apr 1993478118.05$8,628
Mar 1993483118.14$8,762
Feb 1993959117.90$17,166
Jan 1993468116.93$7,923

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.

Oct 2024 — as filed, then multipliedworked
Oil                   63 bbl  × $ 71.37 =     $4,496
Casinghead gas         0 Mcf  × $  2.28 =         $0

────────────────────────────────────────────────────
Month total                                   $4,496

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/2437 is the state's own key, not one this site invented.