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COZART

Operated by BEST PETROLEUM EXPLORATIONS,INC. (P-5 68287) in the LOST VALLEY (CADDO) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 31085District 09Field 55050333OilCasinghead gasSaveExport
Value, all time
$10.7 M
Jul 2008 – May 2026
Value, last 12 filed months
$28 k
at the published price for each month
Months reported
215
no gaps in the span
Streams
2
oil, casinghead gas

The LOST VALLEY (CADDO) field

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 62 leases and 99 wells, and the rule below applies to all of them.

Discovered
1971-12-30
as the register files it
Field class
Oil and gas
the register's own label
Between wells
933 ft
minimum
From a lease line
330 ft
minimum

A drilling unit in this field needs at least 20 acres. The field rule took effect on 1997-10-01.

The Commission's schedule remark for this field reads: “PSEUDO RULES BUILT TO ACCOMMODATE MITCHELL'S HORIZ. WELL”

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
OilDisposition110,659 bbl$9,558,388
Casinghead gasProduction306,862 Mcf$1,132,872
Total$10,691,260

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 33.2714, -98.3607. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.2 miles.

33.27137, -98.36073 · 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
50.0%
1 of 2 wells
With a plug date
50.0%
1 of 2 wells
Median depth
3,313 ft
2 wells filed one
Completion to plug
10.8 years
median over 1 well

What the state filed about each well

On the RRC proration schedule
150.0%
A plug date is filed
150.0%
BothOn the schedule and plugged. Neither fact cancels the other.
150.0%
NeitherNo plug date, and not on the schedule.
150.0%

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 1,500 and 5,125 ft, median 3,313 ft, over the 2 wells that filed a depth.

Completions filed
Jul 2008 – May 2009
2 of 2 wells
Plug dates filed
Mar 2020
1 of 2 wells; 1 filed none

Last completion to plug: a median of 10.8 years across the 1 well that filed both dates, with the middle half between 10.8 years and 10.8 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

2 wells

42-237309531W1,500 ftMay 2009Mar 2020Yes
42-2373921915,125 ftJul 2008——

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 (215)

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

215 months

May 20260659106.413.05$2,007
Apr 2026060698.932.87$1,739
Mar 2026073889.753.15$2,324
Feb 2026057363.503.75$2,149
Jan 2026042759.138.00$3,415
Dec 2025054256.664.41$2,392
Nov 2025064058.593.93$2,513
Oct 2025064359.383.30$2,125
Sep 2025078862.743.08$2,425
Aug 2025089963.933.01$2,710
Jul 2025058266.743.32$1,929
Jun 2025061766.483.13$1,930
May 2025059960.553.23$1,936
Apr 2025064762.363.54$2,292
Mar 2025083467.704.27$3,560
Feb 2025051970.884.34$2,253
Jan 2025045274.324.28$1,934
Dec 2024043368.993.12$1,352
Nov 2024020469.052.20$448
Oct 2024058071.372.28$1,323
Sep 2024072069.612.36$1,702
Aug 2024083175.632.06$1,715
Jul 2024094679.932.15$2,031
Jun 20240078.082.63$0
May 20240078.812.20$0
Apr 20240084.451.66$0
Mar 202471080.301.55$5,701
Feb 20240076.091.78$0
Jan 20240073.023.30$0
Dec 20230071.262.61$0
Nov 202308477.892.81$236
Oct 2023061285.443.09$1,889
Sep 2023050489.042.74$1,378
Aug 202312747680.522.67$11,498
Jul 2023043574.852.64$1,149
Jun 2023057968.962.26$1,308
May 2023055070.622.23$1,225
Apr 2023062678.122.24$1,401
Mar 2023050072.852.39$1,197
Feb 2023043075.112.47$1,060
Jan 2023033576.533.39$1,135
Dec 20226650076.415.73$7,908
Nov 2022027885.005.65$1,570
Oct 2022027587.185.86$1,613
Sep 2022032184.888.16$2,621
Aug 2022032094.529.13$2,921
Jul 20220325101.587.54$2,451
Jun 20220397115.097.98$3,167
May 20220375109.378.43$3,162
Apr 2022180791104.226.84$24,168
Mar 20220800108.885.08$4,061
Feb 2022071891.054.86$3,489
Jan 2022087381.844.54$3,961
Dec 20211531,05671.323.90$15,029
Nov 202101,14477.435.24$5,991
Oct 202101,08479.795.71$6,194
Sep 202117397369.865.35$17,292
Aug 2021095566.024.22$4,031
Jul 2021098270.783.98$3,910
Jun 202101,01969.493.38$3,445
May 202101,32863.483.02$4,007
Apr 202101,19560.362.76$3,296
Mar 202101,19261.302.72$3,239
Feb 2021058757.805.55$3,257
Jan 202101,04450.412.81$2,934
Dec 2020137044.642.68$6,116
Nov 202001,10138.772.71$2,980
Oct 20201851,23836.972.48$9,908
Sep 202001,16837.091.99$2,326
Aug 202001,22439.982.39$2,919
Jul 202001,35138.371.83$2,466
Jun 20201851,27034.901.69$8,603
May 202001,36716.921.81$2,481
Apr 202001,25214.751.80$2,259
Mar 202001,32330.341.86$2,456
Feb 20201401,33849.881.98$9,633
Jan 202011,55557.252.09$3,315
Dec 20191291,68459.012.30$11,493
Nov 201901,28955.302.75$3,546
Oct 20191641,88253.472.42$13,321
Sep 201901,79855.052.66$4,778
Aug 20191432,11353.112.30$12,464
Jul 20191331,29156.272.46$10,660
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 20190046.033.23$0
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 20170057.272.92$0
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 20161751,75536.561.99$9,892
Mar 201602,48033.011.79$4,449
Feb 201602,01626.472.06$4,160
Jan 20161562,10027.352.36$9,232
Dec 201502,72432.362.00$5,452
Nov 20151572,10038.792.17$10,641
Oct 20153622,86843.552.43$22,725
Sep 201502,62142.992.76$7,230
Aug 20151732,55140.162.87$14,275
Jul 20151772,55148.152.95$16,035
Jun 20151732,66156.152.88$17,385
May 20151782,78455.212.96$18,055
Apr 20151842,96749.822.71$17,197
Mar 20151813,42142.892.93$17,803
Feb 20151852,69544.662.98$16,283
Jan 20151893,19643.433.10$18,118
Dec 20143473,11654.693.59$30,168
Nov 201403,37770.464.25$14,358
Oct 20141742,96278.303.90$25,179
Sep 20141663,33286.164.05$27,782
Aug 2014081389.394.04$3,281
Jul 20141702,08596.564.18$25,130
Jun 20143513,33298.164.74$50,237
May 20145291,79194.734.73$58,577
Apr 20145172,42395.944.81$61,253
Mar 20146733,87595.895.06$84,129
Feb 20141691,64197.406.19$26,622
Jan 20143612,39590.404.86$44,276
Dec 20133422,57491.824.35$42,611
Nov 20136643,62588.853.74$72,548
Oct 20131,0354,61397.423.78$118,264
Sep 20138515,088104.113.72$107,513
Aug 20131,3645,137104.253.52$160,293
Jul 20131,5221,319102.523.72$160,939
Jun 20131,6803,44594.403.93$172,143
May 20132,2254,18594.834.15$228,361
Apr 20132,4183,79293.964.28$243,435
Mar 20131,8853,81093.623.91$191,382
Feb 20131,3702,19091.233.42$132,475
Jan 20132,4302,68491.603.42$231,767
Dec 20121,72480786.773.42$152,352
Nov 20121,7213,37286.953.62$161,864
Oct 20122,0653,46989.383.40$196,363
Sep 20122,7332,28894.672.92$265,410
Aug 20123,4152,09492.662.91$322,524
Jul 20123,7331,37385.133.02$321,938
Jun 20122,8803,73479.822.52$239,288
May 20121,8592,02691.612.49$175,344
Apr 20122,1922,482101.652.00$227,773
Mar 20121,8502,564105.052.22$200,040
Feb 20121,8331,882101.102.57$190,153
Jan 20122,4041,83398.092.73$240,820
Dec 20112,7392,72996.873.24$274,168
Nov 20112,1722,68395.723.31$216,788
Oct 20112,4682,47184.983.65$218,746
Sep 20112,6303,15383.623.99$232,488
Aug 20112,5433,32283.404.15$225,870
Jul 20112,5983,31094.144.52$259,528
Jun 20112,6073,15192.904.64$256,811
May 20112,2113,02798.134.40$230,299
Apr 20112,3162,644105.964.33$256,861
Mar 20111,9122,65896.364.06$195,025
Feb 20111,7722,58485.644.18$162,555
Jan 20111,5962,82786.504.59$151,026
Dec 20101,7422,23285.734.35$159,046
Nov 20101,5952,59780.843.80$138,796
Oct 20101,8812,17078.103.51$154,520
Sep 20101,9402,36472.633.98$150,310
Aug 20101,8012,53873.684.42$143,914
Jul 20101,8022,46572.554.74$142,411
Jun 20101,7542,37770.364.91$135,083
May 20101,8232,42471.124.24$139,918
Apr 20101,5262,13781.694.12$133,469
Mar 20101,1821,97978.394.39$101,342
Feb 20101,3531,49673.585.44$107,696
Jan 20101,0121,71474.365.96$85,475
Dec 20091,3161,25771.445.48$100,908
Nov 20091,0202,38274.593.75$85,018
Oct 20091,0222,25572.544.11$83,404
Sep 20091,1932,60165.543.06$86,161
Aug 20091,0183,58667.423.22$80,175
Jul 20091,0224,47761.133.46$77,985
Jun 20096823,78666.163.90$59,868
May 20091792,19354.743.93$18,408
Apr 20091853,38846.773.59$20,807
Mar 20092084,97542.144.06$28,959
Feb 20098040432.814.63$4,497
Jan 200909835.865.37$526
Dec 2008549737.105.98$3,156
Nov 20083572,80555.496.86$39,053
Oct 20083473,46175.246.92$50,065
Sep 20085212,241101.767.88$70,670
Aug 20084470114.228.48$51,056
Jul 20081530131.0811.39$20,055

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                    0 bbl  × $106.41 =         $0
Casinghead gas       659 Mcf  × $  3.05 =     $2,007

────────────────────────────────────────────────────
Month total                                   $2,007

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/31085 is the state's own key, not one this site invented.