CALVIN, O. -B-

Operated by PORTANA PROPERTIES LLC (P-5 101513) in the WAINWRIGHT (GUNSIGHT) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 1338District 09Field 94670500OilCasinghead gasSaveExport
Value, all time
$1.6 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 6 leases and 57 wells, and the rule below applies to all of them.

Discovered
1952-09-27
as the register files it
Field class
Oil
the register's own label
Between wells
no field rule filed
From a lease line
no field rule filed

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
OilDisposition38,023 bbl$1,633,052
Casinghead gasProduction54 Mcf$162
Total$1,633,214

21 Mcf of this lease's gas, across 21 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 33.4194, -98.7202. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.4 miles. 2 wells have no surveyed location and are left out of it.

33.41910, -98.72022 · 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
23.1%
6 of 26 wells
With a plug date
15.4%
4 of 26 wells
Median depth
1,114 ft
14 wells filed one
Completion to plug
26.3 years
median over 3 wells

What the state filed about each well

On the RRC proration schedule
623.1%
A plug date is filed
415.4%
BothOn the schedule and plugged. Neither fact cancels the other.
415.4%
NeitherNo plug date, and not on the schedule.
2076.9%

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, 14 of 26 wells. Median 1,114 ft, with the middle half between 1,096 and 1,121 ft; the shallowest is 1,064 ft and the deepest 1,470 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, 10 of 26 wells, Jan 1953 – Sep 2020. This is the LAST completion filed on each wellbore, not the first — a well recompleted in 2019 counts once, in the 2010s.

Completions filed
Jan 1953 – Sep 2020
10 of 26 wells; 16 filed none
Plug dates filed
Dec 1997 – Jun 2009
4 of 26 wells; 22 filed none

Last completion to plug: a median of 26.3 years across the 3 wells that filed both dates, with the middle half between 13.7 years and 35.6 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

26 wells

42-009838292B1,094 ftJun 2009Yes
42-009838412Yes
42-009838424Yes
42-00983827121,090 ft
42-009838281A
42-009838302A1,100 ft
42-009838313
42-009838324A
42-009838335A
42-0098383461,085 ft
42-009838368A
42-0098383810
42-0098383911
42-009838435
42-009838447
42-009838458
42-0094107010B1,154 ftSep 2020
42-0093580891,120 ftJun 2019
42-009346739A1,117 ftMar 2018
42-0094190915B1,121 ftOct 2008
42-0094109212B1,104 ftAug 2008
42-0094109111B1,120 ftMar 1997
42-009410466B1,470 ftNov 1996Dec 1997Yes
42-009410473B1,110 ftSep 1996
42-009349827A1,127 ftFeb 1981May 2007Yes
42-0098384011,064 ftJan 1953Dec 1997Yes

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 2024176068.993.12$12,142
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 2024140084.451.66$11,823
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 202382074.852.64$6,138
Jun 20230068.962.26$0
May 20230070.622.23$0
Apr 2023106078.122.24$8,281
Mar 20230072.852.39$0
Feb 20230075.112.47$0
Jan 20230076.533.39$0
Dec 202297076.415.73$7,412
Nov 20220085.005.65$0
Oct 20220087.185.86$0
Sep 2022112084.888.16$9,507
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 2022770108.885.08$8,384
Feb 20220091.054.86$0
Jan 20220081.844.54$0
Dec 20210071.323.90$0
Nov 202159077.435.24$4,568
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 2020181016.921.81$3,063
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 201982055.052.66$4,514
Aug 20190053.112.30$0
Jul 2019145056.272.46$8,159
Jun 20190052.782.49$0
May 20190058.482.74$0
Apr 201991062.632.75$5,699
Mar 20190056.803.06$0
Feb 201979050.852.79$4,017
Jan 20190046.033.23$0
Dec 2018160046.594.19$7,454
Nov 20180052.934.24$0
Oct 20180061.443.40$0
Sep 201896059.543.11$5,716
Aug 20180059.403.07$0
Jul 20180065.142.93$0
Jun 20180060.183.08$0
May 2018123065.382.90$8,042
Apr 20180063.842.90$0
Mar 20180061.222.79$0
Feb 20180061.782.77$0
Jan 20180062.874.01$0
Dec 201777057.272.92$4,410
Nov 20170055.423.12$0
Oct 201782049.292.98$4,042
Sep 201781047.523.09$3,849
Aug 201757045.373.00$2,586
Jul 20170043.873.09$0
Jun 201770042.493.09$2,974
May 2017102045.373.26$4,628
Apr 201755047.933.21$2,636
Mar 2017103046.772.98$4,817
Feb 201760050.452.95$3,027
Jan 201760049.413.42$2,965
Dec 201678048.763.72$3,803
Nov 201673042.492.64$3,102
Oct 201698046.193.09$4,527
Sep 201676041.553.10$3,158
Aug 201677041.442.92$3,191
Jul 201667041.622.92$2,789
Jun 201680045.352.69$3,628
May 201681042.521.99$3,444
Apr 201655036.561.99$2,011
Mar 201669033.011.79$2,278
Feb 201691026.472.06$2,409
Jan 201685027.352.36$2,325
Dec 201570032.362.00$2,265
Nov 201589038.792.17$3,452
Oct 201577043.552.43$3,353
Sep 201570042.992.76$3,009
Aug 201593040.162.87$3,735
Jul 20150048.152.95$0
Jun 201581056.152.88$4,548
May 201585055.212.96$4,693
Apr 201597049.822.71$4,833
Mar 201582042.892.93$3,517
Feb 2015103044.662.98$4,600
Jan 201579043.433.10$3,431
Dec 201479054.693.59$4,321
Nov 201483070.464.25$5,848
Oct 2014108078.303.90$8,456
Sep 201472086.164.05$6,204
Aug 20140089.394.04$0
Jul 201494096.564.18$9,077
Jun 2014107098.164.74$10,503
May 201487094.734.73$8,242
Apr 201470095.944.81$6,716
Mar 2014112095.895.06$10,740
Feb 201475097.406.19$7,305
Jan 201477090.404.86$6,961
Dec 201376091.824.35$6,978
Nov 201396088.853.74$8,530
Oct 201384097.423.78$8,183
Sep 20131140104.113.72$11,869
Aug 2013740104.253.52$7,715
Jul 2013880102.523.72$9,022
Jun 20130094.403.93$0
May 201395094.834.15$9,009
Apr 201388093.964.28$8,268
Mar 201378093.623.91$7,302
Feb 201392091.233.42$8,393
Jan 201399091.603.42$9,068
Dec 201281086.773.42$7,028
Nov 201299086.953.62$8,608
Oct 2012118089.383.40$10,547
Sep 201263094.672.92$5,964
Aug 2012109092.662.91$10,100
Jul 2012173085.133.02$14,727
Jun 20120079.822.52$0
May 201283091.612.49$7,604
Apr 20121640101.652.00$16,671
Mar 201200105.052.22$0
Feb 20121500101.102.57$15,165
Jan 2012100098.092.73$9,809
Dec 2011159096.873.24$15,402
Nov 201164095.723.31$6,126
Oct 2011162084.983.65$13,767
Sep 20110083.623.99$0
Aug 2011160083.404.15$13,344
Jul 201158094.144.52$5,460
Jun 201191092.904.64$8,454
May 2011107098.134.40$10,500
Apr 20111500105.964.33$15,894
Mar 201194096.364.06$9,058
Feb 201185085.644.18$7,279
Jan 2011149086.504.59$12,889
Dec 2010113085.734.35$9,687
Nov 2010120080.843.80$9,701
Oct 2010101078.103.51$7,888
Sep 2010100072.633.98$7,263
Aug 2010146073.684.42$10,757
Jul 2010118072.554.74$8,561
Jun 2010118070.364.91$8,302
May 201065071.124.24$4,623
Apr 2010145081.694.12$11,845
Mar 2010154078.394.39$12,072
Feb 2010152073.585.44$11,184
Jan 2010167074.365.96$12,418
Dec 200994071.445.48$6,715
Nov 2009148074.593.75$11,039
Oct 2009216072.544.11$15,669
Sep 2009169065.543.06$11,076
Aug 2009173067.423.22$11,664
Jul 2009166061.133.46$10,148
Jun 2009167066.163.90$11,049
May 2009164054.743.93$8,977
Apr 2009173046.773.59$8,091
Mar 2009108042.144.06$4,551
Feb 2009209032.814.63$6,857
Jan 2009232035.865.37$8,320
Dec 2008180037.105.98$6,678
Nov 2008158055.496.86$8,767
Oct 2008181075.246.92$13,618
Sep 20081820101.767.88$18,520
Aug 20081560114.228.48$17,818
Jul 20081620131.0811.39$21,235
Jun 20081530131.3313.03$20,093
May 20081630123.1711.57$20,077
Apr 20081670110.3110.45$18,422
Mar 20081860101.909.66$18,953
Feb 2008171092.538.77$15,823
Jan 2008148090.388.21$13,376
Dec 2007243088.337.30$21,464
Nov 2007117091.677.29$10,725
Oct 2007174082.856.92$14,416
Sep 2007251075.846.24$19,036
Aug 2007180069.066.39$12,431
Jul 2007211070.906.39$14,960
Jun 2007180062.007.55$11,160
May 2007124058.747.85$7,284
Apr 2007125059.617.81$7,451
Mar 20070056.927.30$0
Feb 2007269055.108.22$14,822
Jan 20070050.306.73$0
Dec 200690056.656.92$5,099
Nov 2006188054.207.62$10,190
Oct 20060054.906.01$0
Sep 200665060.085.04$3,905
Aug 2006128068.717.34$8,795
Jul 2006167069.376.34$11,585
Jun 20060066.286.38$0
May 2006169066.016.42$11,156
Apr 2006173064.397.36$11,139
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 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 20050043.166.32$0
Dec 20040039.866.75$0
Nov 20040045.286.33$0
Oct 20040049.706.52$0
Sep 20040143.245.28$5
Aug 20040142.375.55$6
Jul 20040138.286.08$6
Jun 20040136.106.43$6
May 20040137.486.49$6
Apr 20040134.475.86$6
Mar 20040134.365.53$6
Feb 20040132.455.51$6
Jan 20040132.036.30$6
Dec 20030130.266.30$6
Nov 20030128.804.60$5
Oct 20030128.174.76$5
Sep 20030126.314.75$5
Aug 20030129.765.13$5
Jul 20030129.415.17$5
Jun 20030128.565.98$6
May 20030126.595.97$6
Apr 20030126.675.41$5
Mar 20030131.146.10$6
Feb 20030133.487.93$8
Jan 20030130.315.58$6
Dec 20020126.914.85$5
Nov 20020124.664.14$4
Oct 20020126.464.23$4
Sep 20020127.443.64$4
Aug 20020125.963.16$3
Jul 20020124.583.06$3
Jun 20020123.733.34$3
May 20020124.663.58$4
Apr 20020123.653.51$4
Mar 20020122.003.10$3
Feb 20020118.222.38$2
Jan 20020117.172.38$2
Dec 20010016.932.36$0
Nov 20010018.072.41$0
Oct 20010019.782.53$0
Sep 20010024.262.25$0
Aug 2001186024.873.05$4,626
Jul 20010023.933.20$0
Jun 2001179024.563.82$4,396
May 20010025.524.31$0
Apr 2001184024.685.34$4,541
Mar 20010024.545.38$0
Feb 20010027.755.77$0
Jan 2001144027.478.40$3,956
Dec 2000153026.889.12$4,113
Nov 20000032.215.66$0
Oct 2000179031.235.15$5,590
Sep 2000357031.875.19$11,378
Aug 20000029.644.54$0
Jul 2000178028.534.09$5,078
Jun 2000302029.304.40$8,849
May 2000180027.263.68$4,907
Apr 2000181024.513.12$4,436
Mar 2000181028.422.86$5,144
Feb 2000126027.622.73$3,480
Jan 2000192025.272.48$4,852
Dec 1999131024.282.42$3,181
Nov 1999366023.192.43$8,488
Oct 19990020.982.80$0
Sep 1999103021.752.62$2,240
Aug 1999156019.262.88$3,005
Jul 1999238017.892.37$4,258
Jun 1999180015.942.36$2,869
May 1999125015.792.32$1,974
Apr 1999179015.102.21$2,703
Mar 1999270012.471.84$3,367
Feb 199918309.981.82$1,826
Jan 1999125010.381.90$1,298
Dec 199828509.201.77$2,622
Nov 1998183010.892.19$1,993
Oct 1998293012.421.97$3,639
Sep 1998243012.592.08$3,059
Aug 1998174011.301.91$1,966
Jul 1998241011.742.24$2,829
Jun 1998291011.242.24$3,271
May 1998274012.622.21$3,458
Apr 1998298013.042.51$3,886
Mar 1998276012.802.31$3,533
Feb 1998261013.952.30$3,641
Jan 1998342014.702.15$5,027
Dec 1997255016.322.41$4,162
Nov 1997307018.193.09$5,584
Oct 1997439019.253.15$8,451
Sep 1997424017.742.95$7,522
Aug 1997355017.862.55$6,340
Jul 1997341017.582.25$5,995
Jun 1997313017.242.26$5,396
May 1997535018.972.31$10,149
Apr 1997357017.882.08$6,383
Mar 1997496018.951.94$9,399
Feb 1997392020.492.21$8,032
Jan 1997468023.483.54$10,989
Dec 1996304023.32$7,089
Nov 1996307021.97$6,745
Oct 1996321023.31$7,483
Sep 1996220022.22$4,888
Aug 1996166020.26$3,363
Jul 1996277019.55$5,415
Jun 1996174018.73$3,259
May 1996283019.43$5,499
Apr 1996176021.51$3,786
Mar 1996332019.38$6,434
Feb 1996170016.98$2,887
Jan 1996171017.07$2,919
Dec 1995328017.19$5,638
Nov 1995307016.00$4,912
Oct 1995167015.43$2,577
Sep 1995251016.18$4,061
Aug 1995242015.92$3,853
Jul 1995228015.24$3,475
Jun 1995234016.41$3,840
May 1995230017.56$4,039
Apr 1995222017.73$3,936
Mar 1995238016.44$3,913
Feb 1995134016.58$2,222
Jan 1995139015.92$2,213
Dec 19940015.03$0
Nov 1994108015.90$1,717
Oct 1994100015.58$1,558
Sep 1994111115.29$1,697
Aug 199494116.13$1,516
Jul 199494117.56$1,651
Jun 1994103117.09$1,760
May 1994108115.88$1,715
Apr 1994102114.14$1,442
Mar 1994233112.46$2,903
Feb 19940112.50$0
Jan 1994103112.66$1,304
Dec 1993120112.33$1,480
Nov 1993103114.49$1,492
Oct 1993112115.85$1,775
Sep 199395115.03$1,428
Aug 1993125115.66$1,958
Jul 1993125115.46$1,933
Jun 1993133116.79$2,233
May 1993127117.68$2,245
Apr 1993130118.05$2,347
Mar 1993131118.14$2,376
Feb 1993135117.90$2,417
Jan 1993134116.93$2,269

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 2024 — as filed, then multipliedworked
Oil                  176 bbl  × $ 68.99 =    $12,142
Casinghead gas         0 Mcf  × $  3.12 =         $0

────────────────────────────────────────────────────
Month total                                  $12,142

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. 09/O/1338 is the state's own key, not one this site invented.