CALVERLY

Operated by EXTEX OPERATING COMPANY (P-5 257062) in the GARDEN CITY, S. (WOLFCAMP) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 40380District 08Field 33998500Hydrogen sulphide fieldOilCasinghead gasSaveExport
Value, all time
$682 k
Jan 2011 – May 2026
Value, last 12 filed months
$0
at the published price for each month
Months reported
185
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 512 leases and 922 wells, and the rule below applies to all of them.

Discovered
1964-03-12
as the register files it
Field class
Oil and gas
the register's own label
Between wells
0 ft
minimum
From a lease line
330 ft
minimum

A drilling unit in this field needs at least 80 acres. The field rule took effect on 2014-05-22.

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: COMMINGLING FEE. GRANTED PER DOCKET #08-0287087.

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
OilDisposition9,058 bbl$675,227
Casinghead gasProduction1,691 Mcf$6,924
Total$682,151

Wells on this lease (1)

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 31.8899, -101.4415. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.0 miles.

31.88995, -101.44153 · 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
0.0%
0 of 1 wells
With a plug date
100.0%
1 of 1 wells
Median depth
9,700 ft
1 wells filed one
Completion to plug
1 well filed both, dated out of order

What the state filed about each well

On the RRC proration schedule
00.0%
A plug date is filed
1100.0%
BothOn the schedule and plugged. Neither fact cancels the other.
00.0%
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

The one well that filed a depth was drilled to 9,700 ft.

Completions filed
Oct 1990
1 of 1 wells
Plug dates filed
Sep 1989
1 of 1 wells

Last completion to plug: no median is published. 1 well on this lease filed both dates, and on that one the last completion is dated after the plug date, so there is no interval to take a median of. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

1 well

42-173320914019,700 ftOct 1990Sep 1989

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 (185)

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

185 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 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 20180063.842.90$0
Mar 20180061.222.79$0
Feb 20180061.782.77$0
Jan 20180062.874.01$0
Dec 20175057.272.92$286
Nov 20175055.423.12$277
Oct 20175049.292.98$246
Sep 20175047.523.09$238
Aug 20175045.373.00$227
Jul 20170043.873.09$0
Jun 20170042.493.09$0
May 20170045.373.26$0
Apr 20170047.933.21$0
Mar 2017124046.772.98$5,799
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 2016149041.622.92$6,201
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 2015321038.792.17$12,452
Oct 2015163043.552.43$7,099
Sep 2015173042.992.76$7,437
Aug 2015329040.162.87$13,213
Jul 2015181048.152.95$8,715
Jun 2015161256.152.88$9,046
May 2015346555.212.96$19,117
Apr 20155231049.822.71$26,083
Mar 20153402542.892.93$14,656
Feb 20151672744.662.98$7,539
Jan 201534812343.433.10$15,495
Dec 201440815054.693.59$22,852
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 2014152098.164.74$14,920
May 2014168094.734.73$15,915
Apr 2014162095.944.81$15,542
Mar 20141613795.895.06$15,625
Feb 20141262297.406.19$12,409
Jan 201417011290.404.86$15,912
Dec 201334584691.824.35$35,362
Nov 201317210288.853.74$15,664
Oct 201333523097.423.78$33,505
Sep 20131650104.113.72$17,178
Aug 201300104.253.52$0
Jul 20131410102.523.72$14,455
Jun 20130094.403.93$0
May 2013185094.834.15$17,544
Apr 2013146093.964.28$13,718
Mar 2013177093.623.91$16,571
Feb 20130091.233.42$0
Jan 2013156091.603.42$14,290
Dec 2012163086.773.42$14,144
Nov 2012167086.953.62$14,521
Oct 2012180089.383.40$16,088
Sep 2012177094.672.92$16,757
Aug 2012171092.662.91$15,845
Jul 2012100085.133.02$8,513
Jun 20120079.822.52$0
May 20120091.612.49$0
Apr 20121800101.652.00$18,297
Mar 20121640105.052.22$17,228
Feb 201200101.102.57$0
Jan 2012182098.092.73$17,852
Dec 2011185096.873.24$17,921
Nov 20110095.723.31$0
Oct 2011181084.983.65$15,381
Sep 2011180083.623.99$15,052
Aug 20110083.404.15$0
Jul 2011184094.144.52$17,322
Jun 20110092.904.64$0
May 2011184098.134.40$18,056
Apr 201100105.964.33$0
Mar 2011141096.364.06$13,587
Feb 20110085.644.18$0
Jan 20110086.504.59$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.

Dec 2017 — as filed, then multipliedworked
Oil                    5 bbl  × $ 57.27 =       $286
Casinghead gas         0 Mcf  × $  2.92 =         $0

────────────────────────────────────────────────────
Month total                                     $286

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/40380 is the state's own key, not one this site invented.