DIAMOND HEAD -A-

Operated by CALK, ROGER D. (P-5 123876) in the C.J.P. (REEF) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 9729District 01Field 14297600OilCasinghead gasSaveExport
Value, all time
$813 k
Jan 1993 – May 2026
Value, last 12 filed months
$15 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 14 leases and 27 wells, and the rule below applies to all of them.

Discovered
1983-08-03
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. The field rule took effect on 1985-09-23.

The Commission's schedule remark for this field reads: 10 ACRE OPTION W/1100' DIAG

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
OilDisposition18,237 bbl$813,034
Casinghead gasProduction54 Mcf$176
Total$813,210

Wells on this lease (3)

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.

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
0.0%
0 of 3 wells
With a plug date
0.0%
0 of 3 wells
Median depth
2,373 ft
3 wells filed one
Completion to plug
no well filed both dates

What the state filed about each well

On the RRC proration schedule
00.0%
A plug date is filed
00.0%
BothOn the schedule and plugged. Neither fact cancels the other.
00.0%
NeitherNo plug date, and not on the schedule.
3100.0%

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 2,363 and 2,424 ft, median 2,373 ft, over the 3 wells that filed a depth.

Completions filed
May 1984 – Oct 1984
3 of 3 wells

3 wells

42-0133294042,373 ftOct 1984
42-0133273332,424 ftJun 1984
42-0133252322,363 ftMay 1984

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 2026147059.138.00$8,692
Dec 20250056.664.41$0
Nov 2025102058.593.93$5,976
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 2025149062.363.54$9,292
Mar 20250067.704.27$0
Feb 2025142070.884.34$10,065
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 2024140078.812.20$11,033
Apr 20240084.451.66$0
Mar 2024140080.301.55$11,242
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 2023147089.042.74$13,089
Aug 20230080.522.67$0
Jul 20230074.852.64$0
Jun 20230068.962.26$0
May 2023140070.622.23$9,887
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 2022136087.185.86$11,856
Sep 20220084.888.16$0
Aug 20220094.529.13$0
Jul 20221420101.587.54$14,424
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 2021148079.795.71$11,809
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 2021164057.805.55$9,479
Jan 20210050.412.81$0
Dec 2020160044.642.68$7,142
Nov 20200038.772.71$0
Oct 20200036.972.48$0
Sep 20200037.091.99$0
Aug 2020160039.982.39$6,397
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 2019153055.052.66$8,423
Aug 20190053.112.30$0
Jul 20190056.272.46$0
Jun 2019150052.782.49$7,917
May 20190058.482.74$0
Apr 20190062.632.75$0
Mar 2019157056.803.06$8,918
Feb 20190050.852.79$0
Jan 20190046.033.23$0
Dec 20180046.594.19$0
Nov 2018150052.934.24$7,940
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 2018150065.382.90$9,807
Apr 20180063.842.90$0
Mar 20180061.222.79$0
Feb 2018160061.782.77$9,885
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 2017155042.493.09$6,586
May 20170045.373.26$0
Apr 2017140047.933.21$6,710
Mar 20170046.772.98$0
Feb 20170050.452.95$0
Jan 2017155049.413.42$7,659
Dec 20160048.763.72$0
Nov 20160042.492.64$0
Oct 20160046.193.09$0
Sep 2016150041.553.10$6,233
Aug 20160041.442.92$0
Jul 2016140041.622.92$5,827
Jun 20160045.352.69$0
May 20160042.521.99$0
Apr 2016160036.561.99$5,850
Mar 2016155033.011.79$5,117
Feb 20160026.472.06$0
Jan 2016160027.352.36$4,376
Dec 20150032.362.00$0
Nov 20150038.792.17$0
Oct 20150043.552.43$0
Sep 20150042.992.76$0
Aug 2015300040.162.87$12,048
Jul 2015150048.152.95$7,223
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 2014315086.164.05$27,140
Aug 20140089.394.04$0
Jul 2014160096.564.18$15,450
Jun 20140098.164.74$0
May 20140094.734.73$0
Apr 20140095.944.81$0
Mar 2014160095.895.06$15,342
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 20131600104.253.52$16,680
Jul 201300102.523.72$0
Jun 20130094.403.93$0
May 2013320094.834.15$30,346
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 2012330089.383.40$29,495
Sep 20120094.672.92$0
Aug 20120092.662.91$0
Jul 20120085.133.02$0
Jun 20120079.822.52$0
May 2012170091.612.49$15,574
Apr 201200101.652.00$0
Mar 20121650105.052.22$17,333
Feb 201200101.102.57$0
Jan 20120098.092.73$0
Dec 2011160096.873.24$15,499
Nov 20110095.723.31$0
Oct 2011160084.983.65$13,597
Sep 20110083.623.99$0
Aug 20110083.404.15$0
Jul 2011160094.144.52$15,062
Jun 20110092.904.64$0
May 2011165098.134.40$16,191
Apr 201100105.964.33$0
Mar 20110096.364.06$0
Feb 20110085.644.18$0
Jan 20110086.504.59$0
Dec 2010320085.734.35$27,434
Nov 20100080.843.80$0
Oct 20100078.103.51$0
Sep 20100072.633.98$0
Aug 20100073.684.42$0
Jul 2010650072.554.74$47,158
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 2008167037.105.98$6,196
Nov 2008174055.496.86$9,655
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 2008171092.538.77$15,823
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 2006169066.286.38$11,201
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 2005162054.6910.59$8,860
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 2005152043.166.32$6,560
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 200450037.486.49$1,874
Apr 20040034.475.86$0
Mar 2004118034.365.53$4,054
Feb 20040032.455.51$0
Jan 2004109032.036.30$3,491
Dec 20030030.266.30$0
Nov 20030028.804.60$0
Oct 2003166028.174.76$4,676
Sep 20030026.314.75$0
Aug 20030029.765.13$0
Jul 2003140029.415.17$4,117
Jun 200369028.565.98$1,971
May 20030026.595.97$0
Apr 2003161026.675.41$4,294
Mar 20030031.146.10$0
Feb 2003166033.487.93$5,558
Jan 20030030.315.58$0
Dec 2002148026.914.85$3,983
Nov 20020024.664.14$0
Oct 2002169026.464.23$4,472
Sep 20020027.443.64$0
Aug 2002280125.963.16$7,272
Jul 20020124.583.06$3
Jun 2002132123.733.34$3,136
May 20020124.663.58$4
Apr 2002298123.653.51$7,051
Mar 20020122.003.10$3
Feb 20020118.222.38$2
Jan 2002153117.172.38$2,629
Dec 20010116.932.36$2
Nov 2001120118.072.41$2,171
Oct 200188119.782.53$1,743
Sep 20010124.262.25$2
Aug 2001176124.873.05$4,380
Jul 20010123.933.20$3
Jun 2001148124.563.82$3,639
May 2001164125.524.31$4,190
Apr 20010124.685.34$5
Mar 2001143124.545.38$3,515
Feb 2001149127.755.77$4,141
Jan 20010127.478.40$8
Dec 200098126.889.12$2,643
Nov 2000109132.215.66$3,517
Oct 2000155131.235.15$4,846
Sep 20000131.875.19$5
Aug 2000131129.644.54$3,887
Jul 2000166128.534.09$4,740
Jun 2000163129.304.40$4,780
May 2000144127.263.68$3,929
Apr 20000124.513.12$3
Mar 2000164128.422.86$4,664
Feb 2000114127.622.73$3,151
Jan 2000136125.272.48$3,439
Dec 1999135124.282.42$3,280
Nov 1999176123.192.43$4,084
Oct 1999206120.982.80$4,325
Sep 1999292121.752.62$6,354
Aug 1999157119.262.88$3,027
Jul 1999145117.892.37$2,596
Jun 1999300115.942.36$4,784
May 1999159115.792.32$2,513
Apr 1999231115.102.21$3,490
Mar 1999409112.471.84$5,102
Feb 199935719.981.82$3,565
Jan 19990110.381.90$2
Dec 1998019.201.77$2
Nov 1998255110.892.19$2,779
Oct 199889112.421.97$1,107
Sep 1998297112.592.08$3,741
Aug 19980111.301.91$2
Jul 1998208111.742.24$2,444
Jun 1998156111.242.24$1,756
May 1998440112.622.21$5,555
Apr 1998706113.042.51$9,209
Mar 19980112.802.31$2
Feb 19980013.952.30$0
Jan 19980014.702.15$0
Dec 19970016.322.41$0
Nov 19970018.193.09$0
Oct 19970019.253.15$0
Sep 19970017.742.95$0
Aug 19970017.862.55$0
Jul 19970017.582.25$0
Jun 19970017.242.26$0
May 19970018.972.31$0
Apr 19970017.882.08$0
Mar 19970018.951.94$0
Feb 19970020.492.21$0
Jan 19970023.483.54$0
Dec 19960023.32$0
Nov 19960021.97$0
Oct 19960023.31$0
Sep 19960022.22$0
Aug 19960020.26$0
Jul 19960019.55$0
Jun 19960018.73$0
May 19960019.43$0
Apr 19960021.51$0
Mar 19960019.38$0
Feb 19960016.98$0
Jan 19960017.07$0
Dec 19950017.19$0
Nov 19950016.00$0
Oct 19950015.43$0
Sep 19950016.18$0
Aug 19950015.92$0
Jul 19950015.24$0
Jun 19950016.41$0
May 19950017.56$0
Apr 19950017.73$0
Mar 19950016.44$0
Feb 19950016.58$0
Jan 19950015.92$0
Dec 19940015.03$0
Nov 19940015.90$0
Oct 19940015.58$0
Sep 19940015.29$0
Aug 19940016.13$0
Jul 19940017.56$0
Jun 19940017.09$0
May 19940015.88$0
Apr 19940014.14$0
Mar 19940012.46$0
Feb 19940012.50$0
Jan 19940012.66$0
Dec 19930012.33$0
Nov 19930014.49$0
Oct 19930015.85$0
Sep 19930015.03$0
Aug 19930015.66$0
Jul 19930015.46$0
Jun 19930016.79$0
May 19930017.68$0
Apr 19930018.05$0
Mar 19930018.14$0
Feb 19930017.90$0
Jan 19930016.93$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.

Jan 2026 — as filed, then multipliedworked
Oil                  147 bbl  × $ 59.13 =     $8,692
Casinghead gas         0 Mcf  × $  8.00 =         $0

────────────────────────────────────────────────────
Month total                                   $8,692

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. 01/O/9729 is the state's own key, not one this site invented.