SERNA, REFUGIO

Operated by SERNA INC. (P-5 767596) in the SEVEN SISTERS field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 2826District 04Field 82380001OilCasinghead gasSaveExport
Value, all time
$4.0 M
Jan 1993 – May 2026
Value, last 12 filed months
$164 k
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 48 leases and 339 wells, and the rule below applies to all of them.

Discovered
1935-05-13
as the register files it
Field class
Oil and gas
the register's own label
Between wells
660 ft
minimum
From a lease line
330 ft
minimum

A drilling unit in this field needs at least 0 acres. The field rule took effect on 1994-10-25.

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
OilDisposition58,431 bbl$4,039,268
Casinghead gasProduction38 Mcf$113
Total$4,039,382

22 Mcf of this lease's gas, across 22 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 (7)

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 28.0190, -98.5172. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.4 miles.

28.01900, -98.51828 · 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
57.1%
4 of 7 wells
With a plug date
14.3%
1 of 7 wells
Median depth
2,208 ft
2 wells filed one
Completion to plug
no well filed both dates

What the state filed about each well

On the RRC proration schedule
457.1%
A plug date is filed
114.3%
BothOn the schedule and plugged. Neither fact cancels the other.
114.3%
NeitherNo plug date, and not on the schedule.
342.9%

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

Between 2,200 and 2,216 ft, median 2,208 ft, over the 2 wells that filed a depth.

Completions filed
Feb 1962 – Aug 1994
2 of 7 wells; 5 filed none
Plug dates filed
Oct 1979
1 of 7 wells; 6 filed none

7 wells

42-1310541852,200 ftOct 1979Yes
42-131105267Yes
42-131810983Yes
42-131811008Yes
42-131105299
42-1310075322,216 ftAug 1994
42-131007346Feb 1962

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 20261550106.413.05$16,494
Apr 2026158098.932.87$15,631
Mar 2026291089.753.15$26,117
Feb 2026139063.503.75$8,827
Jan 2026163059.138.00$9,638
Dec 2025310056.664.41$17,565
Nov 2025157058.593.93$9,199
Oct 2025162059.383.30$9,620
Sep 2025160062.743.08$10,038
Aug 2025161063.933.01$10,293
Jul 2025153066.743.32$10,211
Jun 2025308066.483.13$20,476
May 2025159060.553.23$9,627
Apr 2025155062.363.54$9,666
Mar 2025144067.704.27$9,749
Feb 2025302070.884.34$21,406
Jan 20250074.324.28$0
Dec 2024144068.993.12$9,935
Nov 2024146069.052.20$10,081
Oct 2024150071.372.28$10,706
Sep 2024153069.612.36$10,650
Aug 2024289075.632.06$21,857
Jul 2024157079.932.15$12,549
Jun 2024310078.082.63$24,205
May 20240078.812.20$0
Apr 2024289084.451.66$24,406
Mar 2024158080.301.55$12,687
Feb 2024156076.091.78$11,870
Jan 2024319073.023.30$23,293
Dec 2023157071.262.61$11,188
Nov 2023150077.892.81$11,684
Oct 2023146085.443.09$12,474
Sep 2023312089.042.74$27,780
Aug 20230080.522.67$0
Jul 2023156074.852.64$11,677
Jun 2023158068.962.26$10,896
May 2023152070.622.23$10,734
Apr 2023149078.122.24$11,640
Mar 2023312072.852.39$22,729
Feb 20230075.112.47$0
Jan 2023319076.533.39$24,413
Dec 2022157076.415.73$11,996
Nov 2022160085.005.65$13,600
Oct 20220087.185.86$0
Sep 2022312084.888.16$26,483
Aug 2022315094.529.13$29,774
Jul 20221570101.587.54$15,948
Jun 20221590115.097.98$18,299
May 20223140109.378.43$34,342
Apr 20221580104.226.84$16,467
Mar 20222970108.885.08$32,337
Feb 2022154091.054.86$14,022
Jan 2022161081.844.54$13,176
Dec 2021309071.323.90$22,038
Nov 2021155077.435.24$12,002
Oct 2021159079.795.71$12,687
Sep 2021314069.865.35$21,936
Aug 2021151066.024.22$9,969
Jul 2021314070.783.98$22,225
Jun 20210069.493.38$0
May 2021347063.483.02$22,028
Apr 2021184060.362.76$11,106
Mar 2021153061.302.72$9,379
Feb 2021161057.805.55$9,306
Jan 2021159050.412.81$8,015
Dec 2020145044.642.68$6,473
Nov 2020135038.772.71$5,234
Oct 2020161036.972.48$5,952
Sep 2020164037.091.99$6,083
Aug 2020151039.982.39$6,037
Jul 2020150038.371.83$5,756
Jun 2020316034.901.69$11,028
May 20200016.921.81$0
Apr 2020156014.751.80$2,301
Mar 2020317030.341.86$9,618
Feb 2020159049.881.98$7,931
Jan 2020148057.252.09$8,473
Dec 2019162059.012.30$9,560
Nov 2019154055.302.75$8,516
Oct 20190053.472.42$0
Sep 2019182055.052.66$10,019
Aug 2019152053.112.30$8,073
Jul 2019147056.272.46$8,272
Jun 2019160052.782.49$8,445
May 2019313058.482.74$18,304
Apr 2019179062.632.75$11,211
Mar 2019144056.803.06$8,179
Feb 2019307050.852.79$15,611
Jan 2019160046.033.23$7,365
Dec 2018149046.594.19$6,942
Nov 20180052.934.24$0
Oct 20180061.443.40$0
Sep 2018150059.543.11$8,931
Aug 2018159059.403.07$9,445
Jul 2018170065.142.93$11,074
Jun 2018159060.183.08$9,569
May 20180065.382.90$0
Apr 2018328063.842.90$20,940
Mar 2018166061.222.79$10,163
Feb 2018163061.782.77$10,070
Jan 2018161062.874.01$10,122
Dec 20170057.272.92$0
Nov 2017181055.423.12$10,031
Oct 2017323049.292.98$15,921
Sep 2017161047.523.09$7,651
Aug 2017164045.373.00$7,441
Jul 2017327043.873.09$14,345
Jun 20170042.493.09$0
May 2017162045.373.26$7,350
Apr 2017155047.933.21$7,429
Mar 2017312046.772.98$14,592
Feb 2017164050.452.95$8,274
Jan 2017165049.413.42$8,153
Dec 2016165048.763.72$8,045
Nov 2016153042.492.64$6,501
Oct 2016135046.193.09$6,236
Sep 2016142041.553.10$5,900
Aug 2016127041.442.92$5,263
Jul 2016140041.622.92$5,827
Jun 2016150045.352.69$6,803
May 2016333042.521.99$14,159
Apr 2016341036.561.99$12,467
Mar 2016160033.011.79$5,282
Feb 20160026.472.06$0
Jan 2016320027.352.36$8,752
Dec 2015168032.362.00$5,436
Nov 2015169038.792.17$6,556
Oct 2015156043.552.43$6,794
Sep 2015167042.992.76$7,179
Aug 2015160040.162.87$6,426
Jul 2015323048.152.95$15,552
Jun 2015174056.152.88$9,770
May 2015157055.212.96$8,668
Apr 2015170049.822.71$8,469
Mar 2015163042.892.93$6,991
Feb 2015156044.662.98$6,967
Jan 2015310043.433.10$13,463
Dec 2014167054.693.59$9,133
Nov 2014178070.464.25$12,542
Oct 2014173078.303.90$13,546
Sep 2014165086.164.05$14,216
Aug 2014344089.394.04$30,750
Jul 2014164096.564.18$15,836
Jun 2014333098.164.74$32,687
May 2014156094.734.73$14,778
Apr 2014165095.944.81$15,830
Mar 2014153095.895.06$14,671
Feb 2014475097.406.19$46,265
Jan 2014307090.404.86$27,753
Dec 2013160091.824.35$14,691
Nov 2013164088.853.74$14,571
Oct 2013503097.423.78$49,002
Sep 201300104.113.72$0
Aug 20133220104.253.52$33,569
Jul 20133130102.523.72$32,089
Jun 20130094.403.93$0
May 2013312094.834.15$29,587
Apr 2013315093.964.28$29,597
Mar 2013315093.623.91$29,490
Feb 2013488091.233.42$44,520
Jan 2013210091.603.42$19,236
Dec 2012314086.773.42$27,246
Nov 2012243086.953.62$21,129
Oct 2012172089.383.40$15,373
Sep 2012172094.672.92$16,283
Aug 2012503092.662.91$46,608
Jul 2012309085.133.02$26,305
Jun 2012299079.822.52$23,866
May 2012361091.612.49$33,071
Apr 20123190101.652.00$32,426
Mar 20122850105.052.22$29,939
Feb 20122860101.102.57$28,915
Jan 2012433098.092.73$42,473
Dec 2011152096.873.24$14,724
Nov 2011335095.723.31$32,066
Oct 2011320084.983.65$27,194
Sep 2011326083.623.99$27,260
Aug 2011326083.404.15$27,188
Jul 2011315094.144.52$29,654
Jun 2011474092.904.64$44,035
May 2011168098.134.40$16,486
Apr 20114820105.964.33$51,073
Mar 2011177096.364.06$17,056
Feb 2011351085.644.18$30,060
Jan 2011488086.504.59$42,212
Dec 2010194085.734.35$16,632
Nov 20100080.843.80$0
Oct 2010507078.103.51$39,597
Sep 2010151072.633.98$10,967
Aug 2010300073.684.42$22,104
Jul 2010157072.554.74$11,390
Jun 2010323070.364.91$22,726
May 2010326071.124.24$23,185
Apr 2010343081.694.12$28,020
Mar 2010501078.394.39$39,273
Feb 2010333073.585.44$24,502
Jan 2010311074.365.96$23,126
Dec 2009311071.445.48$22,218
Nov 2009318074.593.75$23,720
Oct 2009620072.544.11$44,975
Sep 2009159065.543.06$10,421
Aug 2009293067.423.22$19,754
Jul 2009609061.133.46$37,228
Jun 2009310066.163.90$20,510
May 2009314054.743.93$17,188
Apr 2009321046.773.59$15,013
Mar 2009320042.144.06$13,485
Feb 2009480032.814.63$15,749
Jan 2009339035.865.37$12,157
Dec 2008329037.105.98$12,206
Nov 2008495055.496.86$27,468
Oct 2008324075.246.92$24,378
Sep 20081550101.767.88$15,773
Aug 20084950114.228.48$56,539
Jul 20083320131.0811.39$43,519
Jun 20083720131.3313.03$48,855
May 20083350123.1711.57$41,262
Apr 20084790110.3110.45$52,838
Mar 20081960101.909.66$19,972
Feb 2008321092.538.77$29,702
Jan 2008445090.388.21$40,219
Dec 2007517088.337.30$45,667
Nov 2007178091.677.29$16,317
Oct 2007183082.856.92$15,162
Sep 2007335075.846.24$25,406
Aug 2007169069.066.39$11,671
Jul 2007165070.906.39$11,699
Jun 2007166062.007.55$10,292
May 20070058.747.85$0
Apr 2007310159.617.81$18,487
Mar 20070156.927.30$7
Feb 2007169155.108.22$9,320
Jan 20070150.306.73$7
Dec 2006141156.656.92$7,995
Nov 2006179154.207.62$9,709
Oct 20060154.906.01$6
Sep 2006170160.085.04$10,219
Aug 2006170168.717.34$11,688
Jul 2006163169.376.34$11,314
Jun 2006165166.286.38$10,943
May 2006169166.016.42$11,162
Apr 2006167164.397.36$10,760
Mar 2006156156.707.08$8,852
Feb 2006160157.597.75$9,222
Jan 20060160.598.93$9
Dec 2005153054.9413.42$8,406
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 20040043.245.28$0
Aug 20040042.375.55$0
Jul 20040038.286.08$0
Jun 20040036.106.43$0
May 20040037.486.49$0
Apr 20040034.475.86$0
Mar 20040034.365.53$0
Feb 20040032.455.51$0
Jan 20040032.036.30$0
Dec 20030030.266.30$0
Nov 20030028.804.60$0
Oct 20030028.174.76$0
Sep 20030026.314.75$0
Aug 20030029.765.13$0
Jul 20030029.415.17$0
Jun 20030028.565.98$0
May 20030026.595.97$0
Apr 20030026.675.41$0
Mar 20030031.146.10$0
Feb 20030033.487.93$0
Jan 20030030.315.58$0
Dec 20020026.914.85$0
Nov 20020024.664.14$0
Oct 20020026.464.23$0
Sep 20020027.443.64$0
Aug 20020025.963.16$0
Jul 20020024.583.06$0
Jun 20020023.733.34$0
May 20020024.663.58$0
Apr 20020023.653.51$0
Mar 20020022.003.10$0
Feb 20020018.222.38$0
Jan 20020017.172.38$0
Dec 20010016.932.36$0
Nov 20010018.072.41$0
Oct 20010019.782.53$0
Sep 20010024.262.25$0
Aug 20010024.873.05$0
Jul 20010023.933.20$0
Jun 20010024.563.82$0
May 20010025.524.31$0
Apr 200148024.685.34$1,185
Mar 20010024.545.38$0
Feb 2001140027.755.77$3,885
Jan 20010027.478.40$0
Dec 2000118026.889.12$3,172
Nov 200056032.215.66$1,804
Oct 200041031.235.15$1,280
Sep 200059031.875.19$1,880
Aug 200080029.644.54$2,371
Jul 2000145028.534.09$4,137
Jun 2000138029.304.40$4,043
May 20000027.263.68$0
Apr 20000024.513.12$0
Mar 2000158028.422.86$4,490
Feb 200052027.622.73$1,436
Jan 20000025.272.48$0
Dec 19990024.282.42$0
Nov 199931023.192.43$719
Oct 19990020.982.80$0
Sep 19990021.752.62$0
Aug 19990019.262.88$0
Jul 19990017.892.37$0
Jun 19990015.942.36$0
May 19990015.792.32$0
Apr 199974015.102.21$1,117
Mar 19990012.471.84$0
Feb 19996309.981.82$629
Jan 19990010.381.90$0
Dec 1998009.201.77$0
Nov 1998132010.892.19$1,437
Oct 19980012.421.97$0
Sep 19980012.592.08$0
Aug 19980011.301.91$0
Jul 19980011.742.24$0
Jun 1998141011.242.24$1,585
May 19980012.622.21$0
Apr 199890013.042.51$1,174
Mar 1998154012.802.31$1,971
Feb 1998162013.952.30$2,260
Jan 19980014.702.15$0
Dec 1997162016.322.41$2,644
Nov 19970018.193.09$0
Oct 1997110019.253.15$2,118
Sep 19970017.742.95$0
Aug 1997125017.862.55$2,233
Jul 1997147017.582.25$2,584
Jun 19970017.242.26$0
May 1997123018.972.31$2,333
Apr 1997166017.882.08$2,968
Mar 1997163018.951.94$3,089
Feb 1997152020.492.21$3,114
Jan 19970023.483.54$0
Dec 19960023.32$0
Nov 1996141021.97$3,098
Oct 19960023.31$0
Sep 1996115022.22$2,555
Aug 19960020.26$0
Jul 19960019.55$0
Jun 19960018.73$0
May 199671019.43$1,380
Apr 19960021.51$0
Mar 1996145019.38$2,810
Feb 19960016.98$0
Jan 1996130017.07$2,219
Dec 19950017.19$0
Nov 19950016.00$0
Oct 19950015.43$0
Sep 19950016.18$0
Aug 1995127015.92$2,022
Jul 19950015.24$0
Jun 1995155016.41$2,544
May 19950017.56$0
Apr 19950017.73$0
Mar 1995125016.44$2,055
Feb 19950016.58$0
Jan 1995103015.92$1,640
Dec 1994121015.03$1,819
Nov 19940015.90$0
Oct 1994132115.58$2,057
Sep 19940115.29$0
Aug 19940116.13$0
Jul 19940117.56$0
Jun 19940117.09$0
May 19940115.88$0
Apr 19940114.14$0
Mar 19940112.46$0
Feb 19940112.50$0
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 1993112117.90$2,005
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.

May 2026 — as filed, then multipliedworked
Oil                  155 bbl  × $106.41 =    $16,494
Casinghead gas         0 Mcf  × $  3.05 =         $0

────────────────────────────────────────────────────
Month total                                  $16,494

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. 04/O/2826 is the state's own key, not one this site invented.