CALFAS A

Operated by CALFAS OIL, LLC (P-5 123614) in the SOMERSET field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 10790District 01Field 84560001OilCasinghead gasSave
Value, all time
$1.1 M
Jan 1993 – May 2026
Value, last 12 filed months
$8 k
at the published price for each month
Months reported
401
no gaps in the span
Streams
2
oil, casinghead gas

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
OilDisposition26,687 bbl$1,086,819
Casinghead gasProduction14 Mcf$0
Total$1,086,819

14 Mcf of this lease's gas, across 14 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 (19)

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 29.1901, -98.6681. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.8 miles.

29.19040, -98.66721 · 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
5.3%
1 of 19 wells
With a plug date
5.3%
1 of 19 wells
Median depth
1,977 ft
18 wells filed one
Completion to plug
20.6 years
median over 1 wells

What the state filed about each well

On the RRC proration schedule
15.3%
A plug date is filed
15.3%
BothOn the schedule and plugged. Neither fact cancels the other.
15.3%
NeitherNo plug date, and not on the schedule.
1894.7%

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

0k
2k
4k
6k
8k
10k
12k
15k
20k+

Total depth in feet, 18 of 19 wells. Median 1,977 ft, with the middle half between 1,905 and 1,998 ft; the shallowest is 1,550 ft and the deepest 2,000 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

80s

Last completion by decade, 19 of 19 wells, Jan 1983 – Aug 1984. 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 1983 – Aug 1984
19 of 19 wells
Plug dates filed
Mar 2005
1 of 19 wells; 18 filed none

Last completion to plug: a median of 20.6 years across the 1 well that filed both dates, with the middle half between 20.6 years and 20.6 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

19 wells

42-01332884121,878 ftAug 1984Mar 2005Yes
42-0133216012C1,998 ftJul 1984
42-01332177131,998 ftJul 1984
42-0133211971,998 ftJul 1984
42-0133212361,998 ftJul 1984
42-01332185141,998 ftJul 1984
42-01332068101,890 ftAug 1983
42-0133208231,975 ftAug 1983
42-01332083111,920 ftAug 1983
42-0133212252,000 ftAug 1983
42-013321568C1,940 ftAug 1983
42-0133215810C1,982 ftAug 1983
42-0133212141,978 ftAug 1983
42-013321579CAug 1983
42-0133215911C1,980 ftAug 1983
42-0133207321,900 ftAug 1983
42-0133189311,920 ftApr 1983
42-013318672A1,890 ftApr 1983
42-013317821A1,550 ftJan 1983

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 2025149056.664.41$8,442
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 2025148060.553.23$8,961
Apr 20250062.363.54$0
Mar 20250067.704.27$0
Feb 2025162070.884.34$11,483
Jan 20250074.324.28$0
Dec 20240068.993.12$0
Nov 20240069.052.20$0
Oct 2024153071.372.28$10,920
Sep 20240069.612.36$0
Aug 20240075.632.06$0
Jul 20240079.932.15$0
Jun 2024135078.082.63$10,541
May 2024163078.812.20$12,846
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 2023167077.892.81$13,008
Oct 20230085.443.09$0
Sep 20230089.042.74$0
Aug 20230080.522.67$0
Jul 20230074.852.64$0
Jun 2023156068.962.26$10,758
May 20230070.622.23$0
Apr 20230078.122.24$0
Mar 20230072.852.39$0
Feb 2023165075.112.47$12,393
Jan 20230076.533.39$0
Dec 20220076.415.73$0
Nov 20220085.005.65$0
Oct 20220087.185.86$0
Sep 2022162084.888.16$13,751
Aug 20220094.529.13$0
Jul 202200101.587.54$0
Jun 202200115.097.98$0
May 202200109.378.43$0
Apr 20221620104.226.84$16,884
Mar 202200108.885.08$0
Feb 20220091.054.86$0
Jan 2022181081.844.54$14,813
Dec 20210071.323.90$0
Nov 20210077.435.24$0
Oct 2021162079.795.71$12,926
Sep 20210069.865.35$0
Aug 20210066.024.22$0
Jul 20210070.783.98$0
Jun 2021167069.493.38$11,605
May 20210063.483.02$0
Apr 20210060.362.76$0
Mar 202136061.302.72$2,207
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 2020170037.091.99$6,305
Aug 20200039.982.39$0
Jul 20200038.371.83$0
Jun 2020151034.901.69$5,270
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 2019108046.033.23$4,971
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 2017155057.272.92$8,877
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 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 2015154038.792.17$5,974
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 2015149055.212.96$8,226
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 2014153078.303.90$11,980
Sep 20140086.164.05$0
Aug 20140089.394.04$0
Jul 20140096.564.18$0
Jun 20140098.164.74$0
May 20140094.734.73$0
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 2013146097.423.78$14,223
Sep 201300104.113.72$0
Aug 201300104.253.52$0
Jul 201300102.523.72$0
Jun 20130094.403.93$0
May 2013149094.834.15$14,130
Apr 20130093.964.28$0
Mar 20130093.623.91$0
Feb 20130091.233.42$0
Jan 20130091.603.42$0
Dec 20120086.773.42$0
Nov 20120086.953.62$0
Oct 2012152089.383.40$13,586
Sep 20120094.672.92$0
Aug 20120092.662.91$0
Jul 2012164085.133.02$13,961
Jun 20120079.822.52$0
May 20120091.612.49$0
Apr 20121750101.652.00$17,789
Mar 201200105.052.22$0
Feb 201200101.102.57$0
Jan 20120098.092.73$0
Dec 20110096.873.24$0
Nov 2011158095.723.31$15,124
Oct 20110084.983.65$0
Sep 20110083.623.99$0
Aug 2011169083.404.15$14,095
Jul 20110094.144.52$0
Jun 20110092.904.64$0
May 2011157098.134.40$15,406
Apr 201100105.964.33$0
Mar 20110096.364.06$0
Feb 2011158085.644.18$13,531
Jan 20110086.504.59$0
Dec 20100085.734.35$0
Nov 20100080.843.80$0
Oct 2010148078.103.51$11,559
Sep 20100072.633.98$0
Aug 20100073.684.42$0
Jul 2010145072.554.74$10,520
Jun 20100070.364.91$0
May 2010111071.124.24$7,894
Apr 20100081.694.12$0
Mar 2010159078.394.39$12,464
Feb 20100073.585.44$0
Jan 20100074.365.96$0
Dec 20090071.445.48$0
Nov 2009160074.593.75$11,934
Oct 20090072.544.11$0
Sep 20090065.543.06$0
Aug 20090067.423.22$0
Jul 2009156061.133.46$9,536
Jun 20090066.163.90$0
May 20090054.743.93$0
Apr 2009148046.773.59$6,922
Mar 20090042.144.06$0
Feb 2009157032.814.63$5,151
Jan 20090035.865.37$0
Dec 2008155037.105.98$5,751
Nov 20080055.496.86$0
Oct 20080075.246.92$0
Sep 20081720101.767.88$17,503
Aug 200800114.228.48$0
Jul 20081650131.0811.39$21,628
Jun 200800131.3313.03$0
May 200800123.1711.57$0
Apr 20081040110.3110.45$11,472
Mar 20081640101.909.66$16,712
Feb 20080092.538.77$0
Jan 2008154090.388.21$13,919
Dec 20070088.337.30$0
Nov 2007149091.677.29$13,659
Oct 2007174082.856.92$14,416
Sep 20070075.846.24$0
Aug 2007169069.066.39$11,671
Jul 20070070.906.39$0
Jun 20070062.007.55$0
May 2007157058.747.85$9,222
Apr 2007178059.617.81$10,611
Mar 20070056.927.30$0
Feb 2007163055.108.22$8,981
Jan 20070050.306.73$0
Dec 2006165056.656.92$9,347
Nov 20060054.207.62$0
Oct 2006167054.906.01$9,168
Sep 20060060.085.04$0
Aug 200687068.717.34$5,978
Jul 2006174069.376.34$12,070
Jun 20060066.286.38$0
May 2006169066.016.42$11,156
Apr 2006173064.397.36$11,139
Mar 20060056.707.08$0
Feb 200691057.597.75$5,241
Jan 2006168060.598.93$10,179
Dec 20050054.9413.42$0
Nov 2005158054.6910.59$8,641
Oct 20050058.3413.80$0
Sep 2005155061.4512.08$9,525
Aug 2005162061.519.80$9,965
Jul 20050055.697.84$0
Jun 2005168052.337.38$8,791
May 2005165045.226.65$7,461
Apr 20050049.207.36$0
Mar 2005166050.377.15$8,361
Feb 2005159045.226.31$7,190
Jan 20050043.166.32$0
Dec 2004218039.866.75$8,689
Nov 20040045.286.33$0
Oct 2004131049.706.52$6,511
Sep 200494043.245.28$4,065
Aug 2004152042.375.55$6,440
Jul 20040038.286.08$0
Jun 200440036.106.43$1,444
May 2004158037.486.49$5,922
Apr 20040034.475.86$0
Mar 2004161034.365.53$5,532
Feb 2004158032.455.51$5,127
Jan 20040032.036.30$0
Dec 2003166030.266.30$5,023
Nov 20030028.804.60$0
Oct 2003164028.174.76$4,620
Sep 2003154026.314.75$4,052
Aug 2003170029.765.13$5,059
Jul 2003148029.415.17$4,353
Jun 20030028.565.98$0
May 2003165026.595.97$4,387
Apr 20030026.675.41$0
Mar 2003158031.146.10$4,920
Feb 20030033.487.93$0
Jan 2003155030.315.58$4,698
Dec 2002149026.914.85$4,010
Nov 20020024.664.14$0
Oct 2002151026.464.23$3,995
Sep 2002177027.443.64$4,857
Aug 2002162025.963.16$4,206
Jul 2002174024.583.06$4,277
Jun 20020023.733.34$0
May 2002164024.663.58$4,044
Apr 2002173023.653.51$4,091
Mar 20020022.003.10$0
Feb 2002173018.222.38$3,152
Jan 2002161017.172.38$2,764
Dec 2001169016.932.36$2,861
Nov 20010018.072.41$0
Oct 2001168019.782.53$3,323
Sep 2001157024.262.25$3,809
Aug 2001171024.873.05$4,253
Jul 2001169023.933.20$4,044
Jun 2001155024.563.82$3,807
May 20010025.524.31$0
Apr 2001151024.685.34$3,727
Mar 2001156024.545.38$3,828
Feb 2001153027.755.77$4,246
Jan 2001166027.478.40$4,560
Dec 2000163026.889.12$4,381
Nov 2000160032.215.66$5,154
Oct 2000165031.235.15$5,153
Sep 2000159031.875.19$5,067
Aug 2000163029.644.54$4,831
Jul 20000028.534.09$0
Jun 20000029.304.40$0
May 2000167027.263.68$4,552
Apr 2000160024.513.12$3,922
Mar 2000166028.422.86$4,718
Feb 2000149027.622.73$4,115
Jan 2000156025.272.48$3,942
Dec 1999164024.282.42$3,982
Nov 1999154023.192.43$3,571
Oct 1999152020.982.80$3,189
Sep 1999160021.752.62$3,480
Aug 1999156019.262.88$3,005
Jul 1999157017.892.37$2,809
Jun 1999320015.942.36$5,101
May 1999164015.792.32$2,590
Apr 19990015.102.21$0
Mar 1999151012.471.84$1,883
Feb 1999009.981.82$0
Jan 1999146010.381.90$1,515
Dec 1998009.201.77$0
Nov 1998170010.892.19$1,851
Oct 19980012.421.97$0
Sep 19980012.592.08$0
Aug 1998161011.301.91$1,819
Jul 1998160011.742.24$1,878
Jun 1998148011.242.24$1,664
May 1998152012.622.21$1,918
Apr 1998158013.042.51$2,060
Mar 19980012.802.31$0
Feb 199899013.952.30$1,381
Jan 1998131014.702.15$1,926
Dec 1997111016.322.41$1,812
Nov 1997128018.193.09$2,328
Oct 1997130019.253.15$2,503
Sep 1997151017.742.95$2,679
Aug 1997146017.862.55$2,608
Jul 1997149017.582.25$2,619
Jun 1997216017.242.26$3,724
May 1997169018.972.31$3,206
Apr 1997142017.882.08$2,539
Mar 1997151018.951.94$2,861
Feb 1997164020.492.21$3,360
Jan 1997117023.483.54$2,747
Dec 1996295023.32$6,879
Nov 1996168021.97$3,691
Oct 1996190023.31$4,429
Sep 1996139022.22$3,089
Aug 1996141020.26$2,857
Jul 1996332019.55$6,491
Jun 1996166018.73$3,109
May 1996164019.43$3,187
Apr 1996149021.51$3,205
Mar 1996189019.38$3,663
Feb 1996238016.98$4,041
Jan 1996150017.07$2,561
Dec 1995144017.19$2,475
Nov 1995152016.00$2,432
Oct 1995209015.43$3,225
Sep 1995172016.18$2,783
Aug 1995144015.92$2,292
Jul 1995235015.24$3,581
Jun 1995209016.41$3,430
May 1995201017.56$3,530
Apr 1995262017.73$4,645
Mar 1995118016.44$1,940
Feb 1995135016.58$2,238
Jan 1995266015.92$4,235
Dec 19940015.03$0
Nov 1994162015.90$2,576
Oct 19940015.58$0
Sep 19940015.29$0
Aug 19940016.13$0
Jul 19940117.56$0
Jun 19940017.09$0
May 19940015.88$0
Apr 19940014.14$0
Mar 19940012.46$0
Feb 199430012.50$375
Jan 19940112.66$0
Dec 19930112.33$0
Nov 19930114.49$0
Oct 19930115.85$0
Sep 19930115.03$0
Aug 19930115.66$0
Jul 19930115.46$0
Jun 19930116.79$0
May 19930117.68$0
Apr 19930118.05$0
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.

Dec 2025 — as filed, then multipliedworked
Oil                  149 bbl  × $ 56.66 =     $8,442
Casinghead gas         0 Mcf  × $  4.41 =         $0

────────────────────────────────────────────────────
Month total                                   $8,442

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. 01/O/10790 is the state's own key, not one this site invented.