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HASEL28 UNIT

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 19584District 7CField 85279200OilCasinghead gasSaveExport
Value, all time
$45.1 M
Mar 2017 – May 2026
Value, last 12 filed months
$1.8 M
at the published price for each month
Months reported
111
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
OilDisposition576,162 bbl$32,000,375
Casinghead gasProduction3,945,703 Mcf$13,089,507
Total$45,089,882

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 31.3698, -101.9943. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.1 miles.

31.36978, -101.99426 · 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 2 wells
With a plug date
0.0%
0 of 2 wells
Median depth
8,910 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
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.
2100.0%

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 8,796 and 9,023 ft, median 8,910 ft, over the 2 wells that filed a depth.

Completions filed
Mar 2017
2 of 2 wells

2 wells

42-461403682801AH8,796 ftMar 2017——
42-461403702802BH9,023 ftMar 2017——

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 (111)

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

111 months

May 20261,99525,918106.413.05$291,230
Apr 202688515,22498.932.87$131,242
Mar 20261,43412,11989.753.15$166,870
Feb 20261,2547,46063.503.75$107,606
Jan 20261,0747,23359.138.00$121,355
Dec 20258694,82256.664.41$70,519
Nov 20252822,74258.593.93$27,289
Oct 202570314,53059.383.30$89,763
Sep 20251,44321,57762.743.08$156,925
Aug 20251,62323,85963.933.01$175,688
Jul 20251,83826,86266.743.32$211,721
Jun 20251,87924,57566.483.13$201,804
May 20251,73222,85660.553.23$178,751
Apr 20251,84721,45662.363.54$191,200
Mar 20251,52214,82967.704.27$166,334
Feb 20251,1564,11870.884.34$99,813
Jan 202552144374.324.28$40,616
Dec 20244682,01068.993.12$38,561
Nov 20243074,80069.052.20$31,751
Oct 202464614,20371.372.28$78,508
Sep 20241,52021,94169.612.36$157,684
Aug 20241,23411,42075.632.06$116,894
Jul 20241,19110,43779.932.15$117,601
Jun 20248478,16578.082.63$87,640
May 202476078.812.20$5,990
Apr 2024791,51284.451.66$9,180
Mar 20244126,06380.301.55$42,452
Feb 202493513,52476.091.78$95,266
Jan 20241,44115,82173.023.30$157,394
Dec 20231,16116,77071.262.61$126,515
Nov 20231,3248,15277.892.81$126,014
Oct 20236995,72385.443.09$77,391
Sep 202395313,01089.042.74$120,438
Aug 202370215,26780.522.67$97,332
Jul 20231,42829,25874.852.64$184,180
Jun 20231,62030,33068.962.26$180,215
May 20231,73633,20570.622.23$196,557
Apr 20231,94438,77778.122.24$238,639
Mar 20232,06130,98372.852.39$224,291
Feb 202384714,22775.112.47$98,697
Jan 20231,15119,47976.533.39$154,075
Dec 20221,54922,43376.415.73$246,880
Nov 20221,36727,23285.005.65$269,952
Oct 20221,48728,36487.185.86$295,956
Sep 20221,44827,53384.888.16$347,677
Aug 20221,36929,45594.529.13$398,238
Jul 20221,63228,383101.587.54$379,845
Jun 20221,84029,351115.097.98$445,904
May 20221,69535,758109.378.43$486,931
Apr 20222,15447,381104.226.84$548,462
Mar 20222,39151,202108.885.08$520,254
Feb 20221,88436,19791.054.86$347,414
Jan 20222,15539,82081.844.54$357,056
Dec 20211,89936,20371.323.90$276,597
Nov 20212,37239,08677.435.24$388,351
Oct 20211,73533,95679.795.71$332,456
Sep 20211,96640,20069.865.35$352,452
Aug 20212,09345,59066.024.22$330,597
Jul 20212,26444,09570.783.98$335,836
Jun 20212,08942,40469.493.38$288,516
May 20212,53344,56663.483.02$295,280
Apr 20212,08740,95360.362.76$238,937
Mar 20212,43044,39161.302.72$269,567
Feb 20211,83931,51257.805.55$281,121
Jan 20212,88749,38550.412.81$284,319
Dec 20202,76445,71044.642.68$245,680
Nov 20203,03154,53338.772.71$265,109
Oct 20203,28359,28136.972.48$268,296
Sep 20203,12855,88837.091.99$227,293
Aug 20203,07346,42239.982.39$233,580
Jul 20202,53750,17238.371.83$188,915
Jun 20203,42454,00934.901.69$210,790
May 20203,29158,44216.921.81$161,741
Apr 20203,36749,22814.751.80$138,489
Mar 20204,13552,83930.341.86$223,537
Feb 20204,19150,09749.881.98$308,273
Jan 20204,33531,84557.252.09$314,886
Dec 20195,27458,89259.012.30$446,927
Nov 20194,37353,71055.302.75$389,567
Oct 20194,67761,31353.472.42$398,367
Sep 20194,80655,72755.052.66$412,653
Aug 20195,17859,06453.112.30$411,108
Jul 20195,46160,42856.272.46$455,947
Jun 20195,26965,73052.782.49$441,844
May 20196,66668,26758.482.74$576,901
Apr 20196,08260,25662.632.75$546,662
Mar 20197,24563,92956.803.06$607,273
Feb 20196,19954,97350.852.79$468,716
Jan 20198,46362,56646.033.23$591,526
Dec 20189,22864,15346.594.19$698,441
Nov 20188,46572,20452.934.24$753,998
Oct 20188,75962,00061.443.40$748,834
Sep 20189,36062,86759.543.11$752,685
Aug 201810,39966,06059.403.07$820,278
Jul 201811,85972,38865.142.93$984,728
Jun 201813,07167,24460.183.08$993,517
May 201811,55749,24865.382.90$898,455
Apr 201813,14558,27263.842.90$1,008,212
Mar 201815,17181,44261.222.79$1,155,734
Feb 201814,17559,00961.782.77$1,038,957
Jan 201816,77746,33462.874.01$1,240,538
Dec 201718,11644,61457.272.92$1,167,844
Nov 201720,10345,60155.423.12$1,256,309
Oct 201721,36042,43149.292.98$1,179,435
Sep 201722,93240,85047.523.09$1,215,844
Aug 201727,22342,25545.373.00$1,362,058
Jul 201730,03737,57343.873.09$1,433,722
Jun 201732,09433,43242.493.09$1,466,888
May 201731,13629,74845.373.26$1,509,720
Apr 201721,27918,69347.933.21$1,079,937
Mar 20175,6604,81446.772.98$279,082

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                1,995 bbl  × $106.41 =   $212,288
Casinghead gas    25,918 Mcf  × $  3.05 =    $78,942

────────────────────────────────────────────────────
Month total                                 $291,230

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/19584 is the state's own key, not one this site invented.