CLARKE ESTATE UNIT

Operated by 5 SCHKADE (P-5 271292) in the SHACKELFORD COUNTY REGULAR field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 9972District 7BField 82522001OilCasinghead gasSaveExport
Value, all time
$188 k
Jan 1993 – Mar 2020
Value, last 12 filed months
$0
at the published price for each month
Months reported
327
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 1,335 leases and 6,064 wells, and the rule below applies to all of them.

Discovered
1913-12-31
as the register files it
Field class
Oil and gas
the register's own label
Between wells
no field rule filed
From a lease line
no field rule filed

The Commission's schedule remark for this field reads: CLASS 4 W/DAILY 82 = 6000 TO 8000'

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
OilDisposition4,477 bbl$187,358
Casinghead gasProduction100 Mcf$169
Total$187,527

47 Mcf of this lease's gas, across 47 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 (25)

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 32.7216, -99.2833. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.8 miles. 1 well has no surveyed location and is left out of it.

32.72187, -99.28357 · centre of 24 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%
25 of 25 wells
With a plug date
100.0%
25 of 25 wells
Median depth
674 ft
25 wells filed one
Completion to plug
53.3 years
median over 18 wells

What the state filed about each well

On the RRC proration schedule
25100.0%
A plug date is filed
25100.0%
BothOn the schedule and plugged. Neither fact cancels the other.
25100.0%
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, 25 of 25 wells. Median 674 ft, with the middle half between 667 and 687 ft; the shallowest is 560 ft and the deepest 1,100 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, 18 of 25 wells, May 1930 – Aug 1971. This is the LAST completion filed on each wellbore, not the first — a well recompleted in 2019 counts once, in the 2010s.

Completions filed
May 1930 – Aug 1971
18 of 25 wells; 7 filed none
Plug dates filed
Sep 1948 – May 2018
25 of 25 wells

Last completion to plug: a median of 53.3 years across the 18 wells that filed both dates, with the middle half between 41.0 years and 68.0 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

25 wells

42-417082694700 ftMay 2018Yes
42-417111863A663 ftApr 2018Yes
42-417830146685 ftApr 2018Yes
42-417847673560 ftDec 1976Yes
42-417848119690 ftApr 2018Yes
42-417848171630 ftApr 1973Yes
42-417848247680 ftOct 1968Yes
42-417034438686 ftAug 1971Mar 2018Yes
42-417305315A701 ftJul 1971Mar 2018Yes
42-4172045019710 ftNov 1967Mar 2018Yes
42-417848141W700 ftFeb 1965May 2018Yes
42-41711224171,100 ftFeb 1965May 2018Yes
42-4170866216674 ftApr 1952Apr 1968Yes
42-4170866115677 ftMar 1952Mar 2018Yes
42-417086599B667 ftOct 1951Apr 2018Yes
42-417086608B667 ftDec 1950Apr 2018Yes
42-417830124A665 ftJan 1950Apr 2018Yes
42-417111852A652 ftMay 1949Apr 2018Yes
42-417115971A658 ftApr 1949Mar 2018Yes
42-4170573510A667 ftOct 1948Mar 2018Yes
42-4170988211672 ftMay 1944Mar 2018Yes
42-417848135B671 ftJun 1941Jun 1968Yes
42-4170559910670 ftDec 1939Sep 1948Yes
42-417082537B681 ftDec 1936Jul 1968Yes
42-417082712687 ftMay 1930Jul 1969Yes

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 (327)

Volume × price = value, one row per cycle. The price columns are the same series published on the prices page — nothing here is modelled.

327 months

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 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 20185063.842.90$319
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 2017106042.493.09$4,504
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 201456089.394.04$5,006
Jul 20140096.564.18$0
Jun 20140098.164.74$0
May 201458094.734.73$5,494
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 2013168097.423.78$16,367
Sep 201300104.113.72$0
Aug 201300104.253.52$0
Jul 201300102.523.72$0
Jun 20130094.403.93$0
May 20130094.834.15$0
Apr 2013107093.964.28$10,054
Mar 20130093.623.91$0
Feb 20130091.233.42$0
Jan 20130091.603.42$0
Dec 20120086.773.42$0
Nov 201275086.953.62$6,521
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 201297098.092.73$9,515
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 2010128073.684.42$9,431
Jul 20100072.554.74$0
Jun 20100070.364.91$0
May 20100071.124.24$0
Apr 201049081.694.12$4,003
Mar 20100078.394.39$0
Feb 20100073.585.44$0
Jan 20100074.365.96$0
Dec 200981071.445.48$5,787
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 20081280114.228.48$14,620
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 200788091.677.29$8,067
Oct 20070082.856.92$0
Sep 20070075.846.24$0
Aug 20070069.066.39$0
Jul 200789070.906.39$6,310
Jun 20070062.007.55$0
May 20070058.747.85$0
Apr 2007122059.617.81$7,272
Mar 20070056.927.30$0
Feb 20070055.108.22$0
Jan 20070050.306.73$0
Dec 2006113056.656.92$6,401
Nov 20060054.207.62$0
Oct 20060054.906.01$0
Sep 20060060.085.04$0
Aug 200670068.717.34$4,810
Jul 20060069.376.34$0
Jun 200662066.286.38$4,109
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 20050054.6910.59$0
Oct 20050058.3413.80$0
Sep 200566061.4512.08$4,056
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 20050043.166.32$0
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 20040037.486.49$0
Apr 20040034.475.86$0
Mar 20040034.365.53$0
Feb 20040032.455.51$0
Jan 20040032.036.30$0
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 20030028.565.98$0
May 20030026.595.97$0
Apr 20030026.675.41$0
Mar 20030031.146.10$0
Feb 20030033.487.93$0
Jan 20030030.315.58$0
Dec 20020026.914.85$0
Nov 20020024.664.14$0
Oct 20020026.464.23$0
Sep 20020027.443.64$0
Aug 20020025.963.16$0
Jul 20020024.583.06$0
Jun 20020023.733.34$0
May 20020024.663.58$0
Apr 20020023.653.51$0
Mar 2002129022.003.10$2,838
Feb 20020018.222.38$0
Jan 20020017.172.38$0
Dec 20010016.932.36$0
Nov 20010018.072.41$0
Oct 20010019.782.53$0
Sep 20010024.262.25$0
Aug 20010024.873.05$0
Jul 20010123.933.20$3
Jun 2001131124.563.82$3,221
May 20010125.524.31$4
Apr 20010124.685.34$5
Mar 20010124.545.38$5
Feb 20010127.755.77$6
Jan 20010127.478.40$8
Dec 20000126.889.12$9
Nov 20000132.215.66$6
Oct 2000130131.235.15$4,065
Sep 20000131.875.19$5
Aug 20000129.644.54$5
Jul 200056128.534.09$1,602
Jun 20000129.304.40$4
May 200051127.263.68$1,394
Apr 20000124.513.12$3
Mar 20000128.422.86$3
Feb 2000156127.622.73$4,311
Jan 20000125.272.48$2
Dec 19990124.282.42$2
Nov 19990123.192.43$2
Oct 19990120.982.80$3
Sep 19990121.752.62$3
Aug 1999121119.262.88$2,333
Jul 19990117.892.37$2
Jun 19990115.942.36$2
May 1999171115.792.32$2,702
Apr 19990015.102.21$0
Mar 19990112.471.84$2
Feb 1999019.981.82$2
Jan 19990110.381.90$2
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 19980112.622.21$2
Apr 19980113.042.51$3
Mar 19980112.802.31$2
Feb 19980113.952.30$2
Jan 19980014.702.15$0
Dec 19970116.322.41$2
Nov 1997143118.193.09$2,604
Oct 19970119.253.15$3
Sep 19970117.742.95$3
Aug 19970117.862.55$3
Jul 19970117.582.25$2
Jun 1997183117.242.26$3,157
May 19970118.972.31$2
Apr 19970117.882.08$2
Mar 1997168118.951.94$3,186
Feb 19970120.492.21$2
Jan 19970123.483.54$4
Dec 19960123.32$0
Nov 19960121.97$0
Oct 199681123.31$1,888
Sep 19960122.22$0
Aug 19960120.26$0
Jul 19960119.55$0
Jun 1996172118.73$3,222
May 19960119.43$0
Apr 19960121.51$0
Mar 1996165119.38$3,198
Feb 19960116.98$0
Jan 19960117.07$0
Dec 19950117.19$0
Nov 19950116.00$0
Oct 1995122115.43$1,882
Sep 19950116.18$0
Aug 1995167115.92$2,659
Jul 19950115.24$0
Jun 19950116.41$0
May 19950117.56$0
Apr 19950117.73$0
Mar 19950116.44$0
Feb 19950116.58$0
Jan 1995150015.92$2,388
Dec 19940115.03$0
Nov 19940115.90$0
Oct 19940115.58$0
Sep 19940115.29$0
Aug 19940116.13$0
Jul 19940117.56$0
Jun 19940117.09$0
May 19940115.88$0
Apr 1994160114.14$2,262
Mar 19940112.46$0
Feb 19940112.50$0
Jan 19940112.66$0
Dec 19930112.33$0
Nov 19930114.49$0
Oct 19930115.85$0
Sep 1993179115.03$2,690
Aug 19930115.66$0
Jul 19930115.46$0
Jun 19930116.79$0
May 19930117.68$0
Apr 1993174118.05$3,141
Mar 19930118.14$0
Feb 19930117.90$0
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.

Apr 2018 — as filed, then multipliedworked
Oil                    5 bbl  × $ 63.84 =       $319
Casinghead gas         0 Mcf  × $  2.90 =         $0

────────────────────────────────────────────────────
Month total                                     $319

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. 7B/O/9972 is the state's own key, not one this site invented.