UNIVERSITY "5"

Operated by TAMARACK PETROLEUM COMPANY, INC. (P-5 835630) 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 6566District 7CField 85279200OilCasinghead gasSaveExport
Value, all time
$256 k
Jan 1993 – Sep 1999
Value, last 12 filed months
$9 k
at the published price for each month
Months reported
81
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
OilDisposition13,797 bbl$227,131
Casinghead gasProduction45,252 Mcf$28,373
Total$255,504

33,056 Mcf of this lease's gas, across 48 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 (4)

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 31.2955, -101.5931. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.5 miles.

31.29557, -101.59311 · 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%
4 of 4 wells
With a plug date
75.0%
3 of 4 wells
Median depth
7,770 ft
4 wells filed one
Completion to plug
4.9 years
median over 3 wells

What the state filed about each well

On the RRC proration schedule
4100.0%
A plug date is filed
375.0%
BothOn the schedule and plugged. Neither fact cancels the other.
375.0%
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 7,730 and 7,780 ft, median 7,770 ft, over the 4 wells that filed a depth.

Completions filed
Feb 1975 – Aug 2012
4 of 4 wells
Plug dates filed
Mar 2005 – Jul 2017
3 of 4 wells; 1 filed none

Last completion to plug: a median of 4.9 years across the 3 wells that filed both dates, with the middle half between 3.3 years and 17.5 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

4 wells

42-3833053247,775 ftAug 2012Jul 2017Yes
42-3833050917,780 ftMay 2005Dec 2006Yes
42-3833052337,765 ftMar 1975Mar 2005Yes
42-3833052027,730 ftFeb 1975Yes

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 (81)

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

81 months

Sep 19990021.752.62$0
Aug 19990019.262.88$0
Jul 19991017.892.37$18
Jun 19990015.942.36$0
May 19990015.792.32$0
Apr 1999023515.102.21$519
Mar 1999024612.471.84$452
Feb 1999112579.981.82$577
Jan 1999026610.381.90$505
Dec 19981404109.201.77$2,015
Nov 19989046610.892.19$1,999
Oct 199814647412.421.97$2,747
Sep 199811144512.592.08$2,324
Aug 199814053111.301.91$2,595
Jul 199812453211.742.24$2,646
Jun 199812443811.242.24$2,374
May 199814130912.622.21$2,461
Apr 199814154613.042.51$3,207
Mar 199817053312.802.31$3,407
Feb 199814244113.952.30$2,995
Jan 199813945814.702.15$3,030
Dec 199713945416.322.41$3,363
Nov 199714144218.193.09$3,930
Oct 199713948019.253.15$4,188
Sep 199716845617.742.95$4,328
Aug 199710842917.862.55$3,025
Jul 199713744217.582.25$3,402
Jun 199710946817.242.26$2,936
May 199716850218.972.31$4,346
Apr 199711440517.882.08$2,882
Mar 199717153818.951.94$4,284
Feb 199715449920.492.21$4,256
Jan 199714249423.483.54$5,083
Dec 199619649123.32$4,571
Nov 199614955321.97$3,274
Oct 199614754723.31$3,427
Sep 199615155722.22$3,355
Aug 199617959120.26$3,627
Jul 199614758019.55$2,874
Jun 199617961118.73$3,353
May 199619442919.43$3,769
Apr 199617338921.51$3,721
Mar 199620842519.38$4,031
Feb 199620233416.98$3,430
Jan 199620146317.07$3,431
Dec 199516951917.19$2,905
Nov 199524470616.00$3,904
Oct 199528173915.43$4,336
Sep 199519767816.18$3,187
Aug 199523676815.92$3,757
Jul 199525975115.24$3,947
Jun 199519871816.41$3,249
May 199524070117.56$4,214
Apr 199524266917.73$4,291
Mar 199528476116.44$4,669
Feb 199520366416.58$3,366
Jan 199528769715.92$4,569
Dec 199428474115.03$4,269
Nov 199418087315.90$2,862
Oct 199426192115.58$4,066
Sep 199422899115.29$3,486
Aug 199419996016.13$3,210
Jul 199423095117.56$4,039
Jun 199419895117.09$3,384
May 199424365315.88$3,859
Apr 199420570314.14$2,899
Mar 199424771612.46$3,078
Feb 199420758712.50$2,588
Jan 199421969812.66$2,773
Dec 199326575612.33$3,267
Nov 199319873314.49$2,869
Oct 199320681615.85$3,265
Sep 199323389815.03$3,502
Aug 199318793315.66$2,928
Jul 199321494015.46$3,308
Jun 199320184616.79$3,375
May 199323290817.68$4,102
Apr 199323142718.05$4,170
Mar 199332561718.14$5,896
Feb 199323250117.90$4,153
Jan 199329659516.93$5,011

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.

Jul 1999 — as filed, then multipliedworked
Oil                    1 bbl  × $ 17.89 =        $18
Casinghead gas         0 Mcf  × $  2.37 =         $0

────────────────────────────────────────────────────
Month total                                      $18

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/6566 is the state's own key, not one this site invented.