LARISSA

Operated by COG OPERATING LLC (P-5 166150) 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 15897District 7CField 85279200OilCasinghead gasSaveExport
Value, all time
$9.9 M
Mar 2006 – May 2025
Value, last 12 filed months
$0
at the published price for each month
Months reported
231
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 7,461 leases and 22,481 wells, and the rule below applies to all of them.

Discovered
1904-12-31
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 2016-03-08.

The Commission's schedule remark for this field reads: AREA) 85279200.

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
OilDisposition112,386 bbl$8,534,476
Casinghead gasProduction313,069 Mcf$1,384,695
Total$9,919,172

Wells on this lease (2)

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 31.4188, -102.0242. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.3 miles.

31.41882, -102.02417 · 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%
2 of 2 wells
With a plug date
100.0%
2 of 2 wells
Median depth
10,605 ft
2 wells filed one
Completion to plug
9.6 years
median over 2 wells

What the state filed about each well

On the RRC proration schedule
2100.0%
A plug date is filed
2100.0%
BothOn the schedule and plugged. Neither fact cancels the other.
2100.0%
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

Between 10,600 and 10,610 ft, median 10,605 ft, over the 2 wells that filed a depth.

Completions filed
Mar 2006 – Sep 2012
2 of 2 wells
Plug dates filed
Oct 2015 – Mar 2022
2 of 2 wells

Last completion to plug: a median of 9.6 years across the 2 wells that filed both dates, with the middle half between 9.5 years and 9.6 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

2 wells

42-46138119210,610 ftSep 2012Mar 2022Yes
42-46134957110,600 ftMar 2006Oct 2015Yes

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 (231)

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

231 months

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 20240068.993.12$0
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 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 20230077.892.81$0
Oct 20230085.443.09$0
Sep 20230089.042.74$0
Aug 20230080.522.67$0
Jul 20230074.852.64$0
Jun 20230068.962.26$0
May 20230070.622.23$0
Apr 20230078.122.24$0
Mar 20230072.852.39$0
Feb 20230075.112.47$0
Jan 20230076.533.39$0
Dec 20220076.415.73$0
Nov 20220085.005.65$0
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 2022400104.226.84$4,169
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 202144070.783.98$3,114
Jun 20210069.493.38$0
May 20210063.483.02$0
Apr 20210060.362.76$0
Mar 20210061.302.72$0
Feb 2021200057.805.55$11,560
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 2020043434.901.69$734
May 20202561,14516.921.81$6,409
Apr 202001,30914.751.80$2,362
Mar 20202121,15330.341.86$8,572
Feb 20202341,10349.881.98$13,857
Jan 20204581,06857.252.09$28,458
Dec 20192531,02459.012.30$17,289
Nov 201925797455.302.75$16,891
Oct 20192251,04953.472.42$14,568
Sep 20192621,00255.052.66$17,086
Aug 20191941,05053.112.30$12,723
Jul 20192091,05156.272.46$14,346
Jun 20192351,10652.782.49$15,159
May 20192081,14458.482.74$15,299
Apr 20194641,10462.632.75$32,097
Mar 20192531,23956.803.06$18,164
Feb 20194701,21250.852.79$27,284
Jan 20192262,04246.033.23$16,995
Dec 20185702,18846.594.19$35,714
Nov 20188731,93752.934.24$54,415
Oct 20183961,57061.443.40$29,665
Sep 20181,1931,07559.543.11$74,372
Aug 201838776159.403.07$25,321
Jul 2018015665.142.93$457
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 201724590255.423.12$16,391
Oct 20172841,06849.292.98$17,185
Sep 20174631,01647.523.09$25,138
Aug 20172471,19345.373.00$14,791
Jul 20172371,35143.873.09$14,568
Jun 20176651,45542.493.09$32,748
May 20174701,66545.373.26$26,757
Apr 201701,14647.933.21$3,680
Mar 201745573446.772.98$23,470
Feb 201781235150.452.95$42,002
Jan 201702549.413.42$85
Dec 201605048.763.72$186
Nov 20163125042.492.64$13,389
Oct 20160046.193.09$0
Sep 20160041.553.10$0
Aug 20160041.442.92$0
Jul 201601841.622.92$53
Jun 201601,61645.352.69$4,340
May 201602,76542.521.99$5,505
Apr 20163752,81636.561.99$19,317
Mar 20163692,88533.011.79$17,356
Feb 20163702,76826.472.06$15,506
Jan 201602,99827.352.36$7,088
Dec 20153732,95932.362.00$17,992
Nov 201502,62138.792.17$5,681
Oct 20153703,40443.552.43$24,374
Sep 20151823,56542.992.76$17,658
Aug 20151913,70840.162.87$18,322
Jul 20153653,84448.152.95$28,896
Jun 20151913,82556.152.88$21,752
May 20155484,03055.212.96$42,166
Apr 20151823,80449.822.71$19,363
Mar 20155583,70342.892.93$34,800
Feb 20153733,65344.662.98$27,530
Jan 20153763,75943.433.10$27,985
Dec 20147424,39854.693.59$56,375
Nov 20143705,16670.464.25$48,035
Oct 20147644,96178.303.90$79,174
Sep 20147454,29586.164.05$81,564
Aug 20147424,96189.394.04$86,346
Jul 20147265,01796.564.18$91,072
Jun 20147404,66498.164.74$94,731
May 20141,1064,22994.734.73$124,760
Apr 20147513,93795.944.81$90,984
Mar 20141,1594,14895.895.06$132,112
Feb 20141,1243,90697.406.19$133,664
Jan 20141,1194,48390.404.86$122,948
Dec 20131,8175,95391.824.35$192,759
Nov 20131,4896,87988.853.74$158,013
Oct 20131,5365,54597.423.78$170,594
Sep 20131,8776,993104.113.72$221,413
Aug 20131,8314,031104.253.52$205,081
Jul 20132,1414,861102.523.72$237,567
Jun 20132,5404,50694.403.93$257,500
May 20132,5932,23894.834.15$255,180
Apr 20131,8241,76593.964.28$178,942
Mar 20132,3951,70693.623.91$230,895
Feb 201373398391.233.42$70,233
Jan 20131,9021,35891.603.42$178,867
Dec 20122,2472,54486.773.42$203,673
Nov 20122,6082,97986.953.62$237,564
Oct 20121,3041,69189.383.40$122,300
Sep 201273151394.672.92$70,701
Aug 201236963492.662.91$36,035
Jul 2012066685.133.02$2,012
Jun 201254164479.822.52$44,805
May 201218767091.612.49$18,798
Apr 2012393630101.652.00$41,206
Mar 2012199616105.052.22$22,274
Feb 2012401548101.102.57$41,950
Jan 201238063598.092.73$39,010
Dec 201118866196.873.24$20,353
Nov 201176265895.723.31$75,117
Oct 201136171884.983.65$33,297
Sep 201118073383.623.99$17,973
Aug 201173676883.404.15$64,569
Jul 201138074994.144.52$39,157
Jun 201135771692.904.64$36,487
May 201174478198.134.40$76,449
Apr 2011180768105.964.33$22,401
Mar 201135750396.364.06$36,441
Feb 201135145685.644.18$31,966
Jan 201152476986.504.59$48,855
Dec 201020074585.734.35$20,385
Nov 201037175080.843.80$32,838
Oct 201055488778.103.51$46,380
Sep 201054187072.633.98$42,755
Aug 201054981973.684.42$44,070
Jul 201054689072.554.74$43,828
Jun 201036242070.364.91$27,533
May 201036655871.124.24$28,393
Apr 201036268881.694.12$32,408
Mar 201054478778.394.39$46,098
Feb 201036770273.585.44$30,824
Jan 201055673774.365.96$45,740
Dec 200953874771.445.48$42,531
Nov 200953176774.593.75$42,485
Oct 200953883972.544.11$42,475
Sep 200952883165.543.06$37,152
Aug 200987993667.423.22$62,275
Jul 200971367261.133.46$45,914
Jun 200910733466.163.90$8,380
May 200917677554.743.93$12,677
Apr 200953968146.773.59$27,652
Mar 200935069642.144.06$17,574
Feb 200935764532.814.63$14,701
Jan 200954372235.865.37$23,350
Dec 200854674437.105.98$24,704
Nov 200835670555.496.86$24,591
Oct 200835940275.246.92$29,794
Sep 2008358926101.767.88$43,724
Aug 2008538979114.228.48$69,755
Jul 20085111,013131.0811.39$78,519
Jun 20083501,058131.3313.03$59,754
May 20085311,215123.1711.57$79,466
Apr 20087051,211110.3110.45$90,429
Mar 20085231,326101.909.66$66,108
Feb 20087101,28892.538.77$76,993
Jan 20088471,40290.388.21$88,056
Dec 20077071,46388.337.30$73,132
Nov 20073571,47391.677.29$43,467
Oct 20075311,61482.856.92$55,165
Sep 20077011,64975.846.24$63,460
Aug 20078771,66669.066.39$71,208
Jul 20075221,56270.906.39$46,988
Jun 20078761,51562.007.55$65,748
May 20077221,80558.747.85$56,573
Apr 20071,2472,02259.617.81$90,116
Mar 20075482,46956.927.30$49,221
Feb 20079312,61455.108.22$72,775
Jan 20079453,66950.306.73$72,214
Dec 20061,5084,37156.656.92$115,669
Nov 20061,8575,35254.207.62$141,418
Oct 20067502,29954.906.01$55,001
Sep 20061,4376,11860.085.04$117,153
Aug 20062,7035,47568.717.34$225,909
Jul 20061,2592,50069.376.34$103,194
Jun 20063,6825,93366.286.38$281,919
May 20064,2104,03266.016.42$303,808
Apr 20061,6901,64764.397.36$120,942
Mar 20062,4972,37856.707.08$158,423

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 2022 — as filed, then multipliedworked
Oil                   40 bbl  × $104.22 =     $4,169
Casinghead gas         0 Mcf  × $  6.84 =         $0

────────────────────────────────────────────────────
Month total                                   $4,169

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. 7C/O/15897 is the state's own key, not one this site invented.