CALVERT, A.

Operated by STEPCO OIL & GAS, LLC (P-5 819552) in the COYANOSA (CHERRY CANYON) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 19662District 08Field 21382125OilCasinghead gasSaveExport
Value, all time
$998 k
Jan 1993 – May 2026
Value, last 12 filed months
$42
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 17 leases and 44 wells, and the rule below applies to all of them.

Discovered
1965-08-31
as the register files it
Field class
Oil and gas
the register's own label
Between wells
933 ft
minimum
From a lease line
467 ft
minimum

A drilling unit in this field needs at least 80 acres. The field rule took effect on 2002-05-09.

The Commission's schedule remark for this field reads: 5/9/02.

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
OilDisposition25,245 bbl$996,852
Casinghead gasProduction397 Mcf$1,487
Total$998,340

45 Mcf of this lease's gas, across 45 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 (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.

These wells centre on 31.5694, -102.5724. A lease has no coordinate of its own — that point is the mean of its wells, and they span 86.9 miles, so treat it as the lease's centre and not as its location.

31.73453, -102.32825 · 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
66.7%
2 of 3 wells
With a plug date
33.3%
1 of 3 wells
Median depth
6,300 ft
3 wells filed one
Completion to plug
5.6 years
median over 1 well

What the state filed about each well

On the RRC proration schedule
266.7%
A plug date is filed
133.3%
BothOn the schedule and plugged. Neither fact cancels the other.
133.3%
NeitherNo plug date, and not on the schedule.
133.3%

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 6,050 and 11,707 ft, median 6,300 ft, over the 3 wells that filed a depth.

Completions filed
Jul 1965 – Mar 2018
3 of 3 wells
Plug dates filed
Oct 2023
1 of 3 wells; 2 filed none

Last completion to plug: a median of 5.6 years across the 1 well that filed both dates, with the middle half between 5.6 years and 5.6 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

3 wells

42-22739079111,707 ftMar 2018Oct 2023Yes
42-3711060526,300 ftMar 1966
42-3711047916,050 ftJul 1965Yes

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 20260198.932.87$3
Mar 20260189.753.15$3
Feb 20260163.503.75$4
Jan 20260159.138.00$8
Dec 20250156.664.41$4
Nov 20250158.593.93$4
Oct 20250159.383.30$3
Sep 20250162.743.08$3
Aug 20250163.933.01$3
Jul 20250166.743.32$3
Jun 20250166.483.13$3
May 20250160.553.23$3
Apr 20250162.363.54$4
Mar 20250167.704.27$4
Feb 20250170.884.34$4
Jan 20250174.324.28$4
Dec 20240168.993.12$3
Nov 20240169.052.20$2
Oct 20240171.372.28$2
Sep 20240169.612.36$2
Aug 20240175.632.06$2
Jul 20240179.932.15$2
Jun 20240178.082.63$3
May 20240178.812.20$2
Apr 20240184.451.66$2
Mar 20240180.301.55$2
Feb 20240176.091.78$2
Jan 20240173.023.30$3
Dec 20230171.262.61$3
Nov 20230177.892.81$3
Oct 20230185.443.09$3
Sep 20230189.042.74$3
Aug 20230180.522.67$3
Jul 20230174.852.64$3
Jun 20230168.962.26$2
May 20230170.622.23$2
Apr 20230178.122.24$2
Mar 20230172.852.39$2
Feb 20230175.112.47$2
Jan 20230176.533.39$3
Dec 20220176.415.73$6
Nov 20220185.005.65$6
Oct 20220187.185.86$6
Sep 20220184.888.16$8
Aug 20220194.529.13$9
Jul 202201101.587.54$8
Jun 202201115.097.98$8
May 202201109.378.43$8
Apr 202201104.226.84$7
Mar 202201108.885.08$5
Feb 20220191.054.86$5
Jan 20220181.844.54$5
Dec 20210171.323.90$4
Nov 20210177.435.24$5
Oct 20210179.795.71$6
Sep 2021346169.865.35$24,177
Aug 20210166.024.22$4
Jul 20210170.783.98$4
Jun 20210169.493.38$3
May 20210163.483.02$3
Apr 20210160.362.76$3
Mar 20210161.302.72$3
Feb 20210157.805.55$6
Jan 20210150.412.81$3
Dec 20200144.642.68$3
Nov 20200138.772.71$3
Oct 20200136.972.48$2
Sep 2020344137.091.99$12,761
Aug 20200139.982.39$2
Jul 20200138.371.83$2
Jun 20200134.901.69$2
May 20200116.921.81$2
Apr 20200114.751.80$2
Mar 20200130.341.86$2
Feb 20200149.881.98$2
Jan 20200157.252.09$2
Dec 20190159.012.30$2
Nov 20190155.302.75$3
Oct 20190153.472.42$2
Sep 20190155.052.66$3
Aug 20190153.112.30$2
Jul 20190156.272.46$2
Jun 2019338152.782.49$17,842
May 20190158.482.74$3
Apr 20190162.632.75$3
Mar 20190156.803.06$3
Feb 20190150.852.79$3
Jan 20190146.033.23$3
Dec 20180146.594.19$4
Nov 20180152.934.24$4
Oct 20180161.443.40$3
Sep 20180159.543.11$3
Aug 2018171159.403.07$10,160
Jul 2018183165.142.93$11,924
Jun 20180160.183.08$3
May 20180165.382.90$3
Apr 20180163.842.90$3
Mar 20180161.222.79$3
Feb 20180161.782.77$3
Jan 20180162.874.01$4
Dec 20170157.272.92$3
Nov 20170155.423.12$3
Oct 20170149.292.98$3
Sep 20170147.523.09$3
Aug 20170145.373.00$3
Jul 20170143.873.09$3
Jun 2017375142.493.09$15,937
May 20170145.373.26$3
Apr 20170147.933.21$3
Mar 20170146.772.98$3
Feb 20170150.452.95$3
Jan 20170149.413.42$3
Dec 20160148.763.72$4
Nov 20160142.492.64$3
Oct 20160146.193.09$3
Sep 20160141.553.10$3
Aug 2016177141.442.92$7,338
Jul 20160141.622.92$3
Jun 20160145.352.69$3
May 20160142.521.99$2
Apr 20160136.561.99$2
Mar 2016175133.011.79$5,779
Feb 20160126.472.06$2
Jan 20160127.352.36$2
Dec 20150132.362.00$2
Nov 20150138.792.17$2
Oct 20150143.552.43$2
Sep 2015173142.992.76$7,440
Aug 20150140.162.87$3
Jul 2015172148.152.95$8,285
Jun 2015173156.152.88$9,717
May 20150155.212.96$3
Apr 20150149.822.71$3
Mar 20150142.892.93$3
Feb 2015174144.662.98$7,774
Jan 20150143.433.10$3
Dec 20140154.693.59$4
Nov 20140170.464.25$4
Oct 20140178.303.90$4
Sep 20140186.164.05$4
Aug 20140189.394.04$4
Jul 20140196.564.18$4
Jun 2014351198.164.74$34,459
May 20140194.734.73$5
Apr 20140195.944.81$5
Mar 20140195.895.06$5
Feb 20140197.406.19$6
Jan 20140190.404.86$5
Dec 20130191.824.35$4
Nov 20130188.853.74$4
Oct 2013181197.423.78$17,637
Sep 20131741104.113.72$18,119
Aug 201301104.253.52$4
Jul 201301102.523.72$4
Jun 20130194.403.93$4
May 20130194.834.15$4
Apr 20130193.964.28$4
Mar 20130193.623.91$4
Feb 20130191.233.42$3
Jan 20130191.603.42$3
Dec 2012355186.773.42$30,807
Nov 20120186.953.62$4
Oct 20120189.383.40$3
Sep 20120194.672.92$3
Aug 20120192.662.91$3
Jul 20120185.133.02$3
Jun 20120179.822.52$3
May 2012354191.612.49$32,432
Apr 201201101.652.00$2
Mar 201201105.052.22$2
Feb 201201101.102.57$3
Jan 20120198.092.73$3
Dec 20110196.873.24$3
Nov 20110195.723.31$3
Oct 2011175184.983.65$14,875
Sep 20110183.623.99$4
Aug 20110183.404.15$4
Jul 20110194.144.52$5
Jun 2011330192.904.64$30,662
May 20110198.134.40$4
Apr 201101105.964.33$4
Mar 20110196.364.06$4
Feb 20110185.644.18$4
Jan 20110186.504.59$5
Dec 20100185.734.35$4
Nov 2010178180.843.80$14,393
Oct 20100178.103.51$4
Sep 20100172.633.98$4
Aug 2010175173.684.42$12,898
Jul 20100172.554.74$5
Jun 20100170.364.91$5
May 20100171.124.24$4
Apr 2010358181.694.12$29,249
Mar 20100178.394.39$4
Feb 20100173.585.44$5
Jan 20100174.365.96$6
Dec 20090171.445.48$5
Nov 2009176174.593.75$13,132
Oct 20090172.544.11$4
Sep 20090165.543.06$3
Aug 2009176167.423.22$11,869
Jul 20090161.133.46$3
Jun 20090166.163.90$4
May 2009171154.743.93$9,364
Apr 20090146.773.59$4
Mar 2009355142.144.06$14,964
Feb 20090132.814.63$5
Jan 20090135.865.37$5
Dec 20080137.105.98$6
Nov 20080155.496.86$7
Oct 2008174175.246.92$13,099
Sep 200801101.767.88$8
Aug 200801114.228.48$8
Jul 200801131.0811.39$11
Jun 20081701131.3313.03$22,339
May 200801123.1711.57$12
Apr 20081741110.3110.45$19,204
Mar 200801101.909.66$10
Feb 2008170192.538.77$15,739
Jan 20080190.388.21$8
Dec 2007169188.337.30$14,935
Nov 20070191.677.29$7
Oct 2007176182.856.92$14,589
Sep 20070175.846.24$6
Aug 2007168169.066.39$11,608
Jul 20070170.906.39$6
Jun 20070162.007.55$8
May 20070158.747.85$8
Apr 2007346159.617.81$20,633
Mar 20070156.927.30$7
Feb 20070155.108.22$8
Jan 20070150.306.73$7
Dec 2006154156.656.92$8,731
Nov 2006173154.207.62$9,384
Oct 20060154.906.01$6
Sep 20060160.085.04$5
Aug 2006163168.717.34$11,207
Jul 20060169.376.34$6
Jun 20060166.286.38$6
May 2006349166.016.42$23,044
Apr 20060164.397.36$7
Mar 20060156.707.08$7
Feb 20060157.597.75$8
Jan 2006350160.598.93$21,215
Dec 20050154.9413.42$13
Nov 20050154.6910.59$11
Oct 20050158.3413.80$14
Sep 2005176161.4512.08$10,827
Aug 20050161.519.80$10
Jul 2005168155.697.84$9,364
Jun 20050152.337.38$7
May 2005176145.226.65$7,965
Apr 20050149.207.36$7
Mar 20050150.377.15$7
Feb 2005177145.226.31$8,010
Jan 2005172143.166.32$7,430
Dec 20040139.866.75$7
Nov 2004176145.286.33$7,976
Oct 20040149.706.52$7
Sep 20040143.245.28$5
Aug 2004354142.375.55$15,005
Jul 20040138.286.08$6
Jun 20040136.106.43$6
May 20040137.486.49$6
Apr 2004353134.475.86$12,174
Mar 20040134.365.53$6
Feb 20040132.455.51$6
Jan 20040132.036.30$6
Dec 2003178130.266.30$5,393
Nov 20030128.804.60$5
Oct 2003181128.174.76$5,104
Sep 20030126.314.75$5
Aug 2003179129.765.13$5,332
Jul 2003176129.415.17$5,181
Jun 2003181128.565.98$5,175
May 20030126.595.97$6
Apr 20030126.675.41$5
Mar 2003370131.146.10$11,528
Feb 20030133.487.93$8
Jan 20030130.315.58$6
Dec 20020126.914.85$5
Nov 2002352124.664.14$8,684
Oct 20020126.464.23$4
Sep 20020127.443.64$4
Aug 2002361125.963.16$9,375
Jul 20020124.583.06$3
Jun 20020123.733.34$3
May 2002348124.663.58$8,585
Apr 20020123.653.51$4
Mar 20020122.003.10$3
Feb 20020118.222.38$2
Jan 20020117.172.38$2
Dec 2001153116.932.36$2,593
Nov 20010118.072.41$2
Oct 20010119.782.53$3
Sep 2001328124.262.25$7,960
Aug 20010124.873.05$3
Jul 20010123.933.20$3
Jun 2001346124.563.82$8,502
May 20010125.524.31$4
Apr 20010124.685.34$5
Mar 2001367124.545.38$9,012
Feb 20010127.755.77$6
Jan 20010127.478.40$8
Dec 20000126.889.12$9
Nov 2000368132.215.66$11,859
Oct 20000131.235.15$5
Sep 20000131.875.19$5
Aug 2000169129.644.54$5,014
Jul 2000181128.534.09$5,168
Jun 20000129.304.40$4
May 20000127.263.68$4
Apr 2000373124.513.12$9,145
Mar 20000128.422.86$3
Feb 20000127.622.73$3
Jan 20000125.272.48$2
Dec 19990124.282.42$2
Nov 1999361123.192.43$8,374
Oct 19990120.982.80$3
Sep 19990121.752.62$3
Aug 1999377119.262.88$7,264
Jul 19990117.892.37$2
Jun 19990115.942.36$2
May 1999183115.792.32$2,892
Apr 1999181115.102.21$2,735
Mar 19990112.471.84$2
Feb 1999019.981.82$2
Jan 1999373110.381.90$3,874
Dec 1998019.201.77$2
Nov 19980110.892.19$2
Oct 19980112.421.97$2
Sep 1998376112.592.08$4,736
Aug 19980111.301.91$2
Jul 1998186111.742.24$2,186
Jun 19980111.242.24$2
May 1998373112.622.21$4,709
Apr 19980113.042.51$3
Mar 19980112.802.31$2
Feb 1998377113.952.30$5,261
Jan 19980114.702.15$2
Dec 19970116.322.41$2
Nov 19970118.193.09$3
Oct 1997189119.253.15$3,641
Sep 1997191117.742.95$3,391
Aug 19970117.862.55$3
Jul 1997187117.582.25$3,290
Jun 1997131117.242.26$2,261
May 1997182118.972.31$3,455
Apr 1997188117.882.08$3,364
Mar 19970118.951.94$2
Feb 19970120.492.21$2
Jan 1997155123.483.54$3,643
Dec 1996180123.32$4,198
Nov 1996189121.97$4,152
Oct 1996192123.31$4,476
Sep 1996187122.22$4,155
Aug 1996195120.26$3,951
Jul 19960119.55$0
Jun 1996190118.73$3,559
May 19960019.43$0
Apr 19960121.51$0
Mar 1996190119.38$3,682
Feb 1996189116.98$3,209
Jan 19960117.07$0
Dec 1995196117.19$3,369
Nov 19950116.00$0
Oct 1995193115.43$2,978
Sep 1995126116.18$2,039
Aug 19950115.92$0
Jul 1995141115.24$2,149
Jun 1995129116.41$2,117
May 1995154117.56$2,704
Apr 1995188117.73$3,333
Mar 1995191116.44$3,140
Feb 19950116.58$0
Jan 1995149115.92$2,372
Dec 1994149115.03$2,239
Nov 1994130115.90$2,067
Oct 1994149115.58$2,321
Sep 1994169115.29$2,584
Aug 1994147116.13$2,371
Jul 1994186117.56$3,266
Jun 1994187117.09$3,196
May 1994190115.88$3,017
Apr 19940114.14$0
Mar 1994190112.46$2,367
Feb 19940112.50$0
Jan 1994324112.66$4,102
Dec 19930112.33$0
Nov 19930014.49$0
Oct 1993121115.85$1,918
Sep 1993168115.03$2,525
Aug 1993188115.66$2,944
Jul 19930115.46$0
Jun 1993116116.79$1,948
May 1993377117.68$6,665
Apr 19930118.05$0
Mar 19930118.14$0
Feb 19930117.90$0
Jan 199356016.93$948

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 2026 — as filed, then multipliedworked
Oil                    0 bbl  × $ 98.93 =         $0
Casinghead gas         1 Mcf  × $  2.87 =         $3

────────────────────────────────────────────────────
Month total                                       $3

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/19662 is the state's own key, not one this site invented.