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AMACKER 66A

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 20833District 7CField 85279200OilCasinghead gasSaveExport
Value, all time
$29.7 M
Jun 2019 – May 2026
Value, last 12 filed months
$2.1 M
at the published price for each month
Months reported
84
no gaps in the span
Streams
2
oil, casinghead gas

The SPRABERRY (TREND AREA) 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 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
OilDisposition387,734 bbl$21,157,479
Casinghead gasProduction2,415,647 Mcf$8,511,660
Total$29,669,139

Wells on this lease (1)

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 31.4032, -102.0448. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.0 miles.

31.40319, -102.04478 · 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
0.0%
0 of 1 wells
With a plug date
0.0%
0 of 1 wells
Median depth
9,044 ft
1 wells filed one
Completion to plug
—
no well filed both dates

What the state filed about each well

On the RRC proration schedule
00.0%
A plug date is filed
00.0%
BothOn the schedule and plugged. Neither fact cancels the other.
00.0%
NeitherNo plug date, and not on the schedule.
1100.0%

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

The one well that filed a depth was drilled to 9,044 ft.

Completions filed
Jan 2020
1 of 1 wells

1 well

42-461410796608BH9,044 ftJan 2020——

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 (84)

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

84 months

May 20261,21821,564106.413.05$195,288
Apr 20261,16121,09198.932.87$175,383
Mar 20261,24321,41889.753.15$179,014
Feb 20261,12119,90163.503.75$145,819
Jan 20261,23722,77759.138.00$255,312
Dec 20251,43423,73956.664.41$186,019
Nov 20251,43023,55258.593.93$176,259
Oct 20251,45124,61659.383.30$167,512
Sep 20251,40724,98462.743.08$165,149
Aug 20251,32525,07163.933.01$160,290
Jul 20251,36722,93866.743.32$167,278
Jun 20251,45725,21266.483.13$175,743
May 20251,60924,90860.553.23$177,936
Apr 20251,66226,07462.363.54$196,026
Mar 20251,54426,85567.704.27$219,155
Feb 20251,52026,73570.884.34$223,790
Jan 20251,51227,24074.324.28$228,923
Dec 20241,68628,08468.993.12$203,978
Nov 20241,55327,81369.052.20$168,380
Oct 20241,79533,77771.372.28$205,168
Sep 20241,71832,69469.612.36$196,890
Aug 20241,90132,91075.632.06$211,687
Jul 20241,90933,37979.932.15$224,237
Jun 20242,00732,82778.082.63$243,172
May 20242,095078.812.20$165,107
Apr 20242,04626,74884.451.66$217,165
Mar 20242,19126,42380.301.55$216,764
Feb 20241,79725,06776.091.78$181,444
Jan 20241,90028,40873.023.30$232,418
Dec 20232,17429,65071.262.61$232,327
Nov 20232,18528,90777.892.81$251,348
Oct 20232,16930,87985.443.09$280,651
Sep 20232,47929,72589.042.74$302,029
Aug 20232,65631,69180.522.67$298,567
Jul 20232,46930,54874.852.64$265,506
Jun 20232,74429,98168.962.26$256,938
May 20232,62331,86970.622.23$256,221
Apr 20232,65431,75478.122.24$278,388
Mar 20232,68532,30472.852.39$272,911
Feb 20232,73627,59375.112.47$273,536
Jan 20233,02830,85976.533.39$336,274
Dec 20222,92831,42676.415.73$403,771
Nov 20223,09929,12085.005.65$427,832
Oct 20223,34828,91987.185.86$461,453
Sep 20223,22530,11784.888.16$519,604
Aug 20223,54534,70594.529.13$651,831
Jul 20223,56535,410101.587.54$629,198
Jun 20223,64735,811115.097.98$705,405
May 20223,55233,143109.378.43$667,978
Apr 20223,84326,863104.226.84$584,196
Mar 20224,18935,066108.885.08$634,107
Feb 20223,56930,41891.054.86$472,754
Jan 20223,73331,74881.844.54$449,571
Dec 20214,62631,40771.323.90$452,386
Nov 20214,58528,87477.435.24$506,225
Oct 20214,70430,69379.795.71$550,708
Sep 20214,93730,76269.865.35$509,504
Aug 20214,98730,27466.024.22$457,016
Jul 20215,44933,60170.783.98$519,482
Jun 20215,73934,63469.493.38$515,888
May 20215,91744,82763.483.02$510,884
Apr 20216,47343,83660.362.76$511,628
Mar 20217,52546,38261.302.72$587,300
Feb 20215,88529,05557.805.55$501,349
Jan 20217,44324,93650.412.81$445,279
Dec 20208,10733,91044.642.68$452,621
Nov 20208,32035,49838.772.71$418,644
Oct 20209,15436,10436.972.48$427,905
Sep 20209,72642,55337.091.99$445,462
Aug 202011,74051,33239.982.39$591,797
Jul 202012,30134,41438.371.83$534,799
Jun 202015,22835,27034.901.69$591,074
May 202019,48073,65816.921.81$463,272
Apr 202026,60172,74814.751.80$523,630
Mar 202032,66454,64230.341.86$1,092,454
Feb 202041,56544,52549.881.98$2,161,452
Jan 20205,4376,40157.252.09$324,677
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

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                1,218 bbl  × $106.41 =   $129,607
Casinghead gas    21,564 Mcf  × $  3.05 =    $65,680

────────────────────────────────────────────────────
Month total                                 $195,288

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/20833 is the state's own key, not one this site invented.