CALVERLY (P) "A"

Operated by DIAMONDBACK E&P LLC (P-5 217012) in the SPRABERRY (TREND AREA) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 26857District 08Field 85280300NGPA filingOilCasinghead gasSaveExport
Value, all time
$845 k
Jan 1993 – Oct 2022
Value, last 12 filed months
$0
at the published price for each month
Months reported
358
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 16,587 leases and 43,997 wells, and the rule below applies to all of them.

Discovered
1952-12-22
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 2018-02-13.

The Commission's schedule remark for this field reads: SPRABERRY (TREND AREA) FIELD EFFECTIVE 10/1/2019.

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
OilDisposition16,352 bbl$703,249
Casinghead gasProduction47,687 Mcf$141,928
Total$845,177

15,717 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 (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 31.7720, -101.6429. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.0 miles.

31.77199, -101.64295 · 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
100.0%
1 of 1 wells
With a plug date
100.0%
1 of 1 wells
Median depth
8,287 ft
1 wells filed one
Completion to plug
41.3 years
median over 1 well

What the state filed about each well

On the RRC proration schedule
1100.0%
A plug date is filed
1100.0%
BothOn the schedule and plugged. Neither fact cancels the other.
1100.0%
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 8,287 ft.

Completions filed
May 1981
1 of 1 wells
Plug dates filed
Sep 2022
1 of 1 wells

Last completion to plug: a median of 41.3 years across the 1 well that filed both dates, with the middle half between 41.3 years and 41.3 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

1 well

42-1733110618,287 ftMay 1981Sep 2022Yes

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 (358)

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

358 months

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 2019122055.302.75$6,747
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 20171050.452.95$50
Jan 20170049.413.42$0
Dec 2016175048.763.72$8,533
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 2016179042.521.99$7,611
Apr 201602436.561.99$48
Mar 201603833.011.79$68
Feb 20161783026.472.06$4,774
Jan 201603027.352.36$71
Dec 201502332.362.00$46
Nov 201503738.792.17$80
Oct 20151755943.552.43$7,764
Sep 201507942.992.76$218
Aug 201502940.162.87$83
Jul 201503348.152.95$97
Jun 20151543856.152.88$8,757
May 201505055.212.96$148
Apr 20151795849.822.71$9,075
Mar 201507042.892.93$205
Feb 201506744.662.98$199
Jan 20151809443.433.10$8,109
Dec 201408254.693.59$294
Nov 201408470.464.25$357
Oct 201417710278.303.90$14,257
Sep 201405986.164.05$239
Aug 201403089.394.04$121
Jul 201403796.564.18$155
Jun 2014050698.164.74$2,397
May 201401,27094.734.73$6,003
Apr 20141671,16495.944.81$21,620
Mar 201401,14095.895.06$5,765
Feb 2014061997.406.19$3,833
Jan 2014073390.404.86$3,563
Dec 201316353991.824.35$17,314
Nov 20130088.853.74$0
Oct 20130097.423.78$0
Sep 20131890104.113.72$19,677
Aug 201300104.253.52$0
Jul 201310102.523.72$103
Jun 2013184094.403.93$17,370
May 20131094.834.15$95
Apr 20130093.964.28$0
Mar 2013187093.623.91$17,507
Feb 20130091.233.42$0
Jan 2013025791.603.42$879
Dec 20122086.773.42$174
Nov 2012174086.953.62$15,129
Oct 20120089.383.40$0
Sep 20120094.672.92$0
Aug 20120092.662.91$0
Jul 20120085.133.02$0
Jun 2012174079.822.52$13,889
May 20120091.612.49$0
Apr 201200101.652.00$0
Mar 201200105.052.22$0
Feb 201215191101.102.57$15,500
Jan 20121098.092.73$98
Dec 20112096.873.24$194
Nov 2011182095.723.31$17,421
Oct 20110084.983.65$0
Sep 2011213383.623.99$697
Aug 2011114383.404.15$677
Jul 201118315894.144.52$17,941
Jun 20110092.904.64$0
May 20113498.134.40$312
Apr 20111820105.964.33$19,285
Mar 20110096.364.06$0
Feb 201102385.644.18$96
Jan 201106086.504.59$275
Dec 201009785.734.35$422
Nov 20101763480.843.80$14,357
Oct 2010114378.103.51$580
Sep 2010015572.633.98$617
Aug 2010016673.684.42$734
Jul 201014813072.554.74$11,353
Jun 201009970.364.91$486
May 2010012171.124.24$512
Apr 201019115081.694.12$16,221
Mar 2010015878.394.39$693
Feb 2010014173.585.44$767
Jan 2010015874.365.96$942
Dec 200918220271.445.48$14,110
Nov 200902374.593.75$86
Oct 2009017272.544.11$707
Sep 2009017565.543.06$536
Aug 2009215867.423.22$643
Jul 200917615761.133.46$11,303
Jun 2009011466.163.90$444
May 2009015854.743.93$620
Apr 200918011746.773.59$8,838
Mar 2009012642.144.06$511
Feb 200909532.814.63$440
Jan 2009175035.865.37$6,276
Dec 200807437.105.98$442
Nov 2008015055.496.86$1,029
Oct 2008014975.246.92$1,031
Sep 20088794101.767.88$9,594
Aug 20080148114.228.48$1,255
Jul 2008136138131.0811.39$19,399
Jun 20080142131.3313.03$1,851
May 200875156123.1711.57$11,043
Apr 20081145110.3110.45$1,626
Mar 20080139101.909.66$1,343
Feb 200817011192.538.77$16,704
Jan 200808490.388.21$689
Dec 200717614388.337.30$16,590
Nov 200709591.677.29$693
Oct 2007011082.856.92$761
Sep 200709875.846.24$612
Aug 200717610769.066.39$12,838
Jul 2007013570.906.39$862
Jun 200707362.007.55$551
May 2007013458.747.85$1,051
Apr 200715813059.617.81$10,433
Mar 2007015556.927.30$1,132
Feb 2007014755.108.22$1,208
Jan 2007181050.306.73$9,104
Dec 20060056.656.92$0
Nov 20060054.207.62$0
Oct 20060054.906.01$0
Sep 2006126060.085.04$7,570
Aug 200606668.717.34$484
Jul 200613715569.376.34$10,487
Jun 2006016166.286.38$1,028
May 2006016666.016.42$1,067
Apr 200610118364.397.36$7,850
Mar 2006016256.707.08$1,147
Feb 2006791057.597.75$4,627
Jan 20060060.598.93$0
Dec 200590054.9413.42$4,945
Nov 20050054.6910.59$0
Oct 2005100058.3413.80$5,834
Sep 2005772161.4512.08$4,985
Aug 2005707861.519.80$5,070
Jul 200508455.697.84$659
Jun 200512010552.337.38$7,055
May 2005012845.226.65$851
Apr 2005669149.207.36$3,917
Mar 20051269150.377.15$6,998
Feb 20050045.226.31$0
Jan 200565043.166.32$2,805
Dec 200464039.866.75$2,551
Nov 20040045.286.33$0
Oct 200465049.706.52$3,231
Sep 200496043.245.28$4,151
Aug 200405942.375.55$327
Jul 2004012938.286.08$785
Jun 200411217136.106.43$5,143
May 2004016137.486.49$1,046
Apr 200411413734.475.86$4,732
Mar 20046815634.365.53$3,199
Feb 200405832.455.51$320
Jan 20041279432.036.30$4,660
Dec 2003016330.266.30$1,027
Nov 200318312328.804.60$5,836
Oct 2003010528.174.76$500
Sep 2003013926.314.75$660
Aug 200317215429.765.13$5,909
Jul 2003017929.415.17$926
Jun 20030028.565.98$0
May 20036815126.595.97$2,710
Apr 200313714026.675.41$4,411
Mar 20030031.146.10$0
Feb 200318515133.487.93$7,391
Jan 2003015130.315.58$843
Dec 20029412126.914.85$3,117
Nov 2002589624.664.14$1,827
Oct 2002177026.464.23$4,683
Sep 200208427.443.64$305
Aug 200203925.963.16$123
Jul 20021125124.583.06$2,909
Jun 2002011123.733.34$371
May 200217915524.663.58$4,970
Apr 2002017723.653.51$622
Mar 2002012122.003.10$375
Feb 2002012818.222.38$304
Jan 20021863517.172.38$3,277
Dec 2001010316.932.36$244
Nov 200105518.072.41$132
Oct 20011808419.782.53$3,773
Sep 2001013124.262.25$295
Aug 2001015624.873.05$476
Jul 200117920123.933.20$4,926
Jun 2001019024.563.82$727
May 2001017825.524.31$767
Apr 20016615124.685.34$2,435
Mar 20018710824.545.38$2,716
Feb 20015916727.755.77$2,600
Jan 20018819027.478.40$4,013
Dec 200018716626.889.12$6,541
Nov 2000018132.215.66$1,024
Oct 2000024631.235.15$1,266
Sep 200014421931.875.19$5,725
Aug 20005124629.644.54$2,629
Jul 2000026128.534.09$1,067
Jun 20008825629.304.40$3,704
May 20005528527.263.68$2,548
Apr 200017826224.513.12$5,179
Mar 2000022528.422.86$643
Feb 20007522827.622.73$2,693
Jan 20006319225.272.48$2,068
Dec 199914420524.282.42$3,993
Nov 19994424523.192.43$1,617
Oct 19999222820.982.80$2,569
Sep 19999526221.752.62$2,752
Aug 1999015819.262.88$454
Jul 19991487517.892.37$2,826
Jun 199906215.942.36$146
May 1999517515.792.32$979
Apr 199906115.102.21$135
Mar 1999015112.471.84$278
Feb 199901429.981.82$258
Jan 199908010.381.90$152
Dec 1998116959.201.77$1,236
Nov 199809810.892.19$214
Oct 19982714312.421.97$617
Sep 1998022212.592.08$462
Aug 1998013011.301.91$248
Jul 199818116811.742.24$2,501
Jun 1998020511.242.24$459
May 1998042412.622.21$935
Apr 199813238013.042.51$2,673
Mar 199817112312.802.31$2,473
Feb 1998028413.952.30$653
Jan 1998028814.702.15$621
Dec 199718427316.322.41$3,661
Nov 1997045418.193.09$1,402
Oct 199715756219.253.15$4,792
Sep 199704817.742.95$142
Aug 1997034817.862.55$889
Jul 19978629017.582.25$2,163
Jun 19977737917.242.26$2,183
May 199720760818.972.31$5,330
Apr 1997054817.882.08$1,141
Mar 1997030618.951.94$593
Feb 199721210920.492.21$4,584
Jan 1997032123.483.54$1,136
Dec 1996016323.32$0
Nov 199615228321.97$3,339
Oct 1996036923.31$0
Sep 19968130222.22$1,800
Aug 19967850620.26$1,580
Jul 199612345119.55$2,405
Jun 199618145818.73$3,390
May 1996049819.43$0
Apr 199616268921.51$3,485
Mar 1996024519.38$0
Feb 1996018816.98$0
Jan 1996015317.07$0
Dec 1995816617.19$138
Nov 19959015916.00$1,440
Oct 19956318615.43$972
Sep 199513820316.18$2,233
Aug 1995025415.92$0
Jul 19957927615.24$1,204
Jun 199512425816.41$2,035
May 19958026317.56$1,405
Apr 1995025117.73$0
Mar 199515922216.44$2,614
Feb 1995022216.58$0
Jan 19957427715.92$1,178
Dec 19948310015.03$1,247
Nov 19941321715.90$2,099
Oct 19945719915.58$888
Sep 199417930615.29$2,737
Aug 1994038616.13$0
Jul 199417850117.56$3,126
Jun 1994039517.09$0
May 1994041615.88$0
Apr 199416347514.14$2,305
Mar 1994048312.46$0
Feb 199417242612.50$2,150
Jan 1994048612.66$0
Dec 199316146112.33$1,985
Nov 1993045714.49$0
Oct 199317646215.85$2,790
Sep 1993056815.03$0
Aug 199314143115.66$2,208
Jul 1993050315.46$0
Jun 199315340816.79$2,569
May 199317239817.68$3,041
Apr 1993011018.05$0
Mar 1993024118.14$0
Feb 199315521717.90$2,775
Jan 1993022916.93$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                  122 bbl  × $ 55.30 =     $6,747
Casinghead gas         0 Mcf  × $  2.75 =         $0

────────────────────────────────────────────────────
Month total                                   $6,747

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/26857 is the state's own key, not one this site invented.