UNIVERSITY "25"

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 6442District 7CField 85279200OilCasinghead gasSaveExport
Value, all time
$265 k
Jan 1993 – Sep 1999
Value, last 12 filed months
$11 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
OilDisposition14,138 bbl$231,385
Casinghead gasProduction49,202 Mcf$33,828
Total$265,213

34,789 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 31.3098, -101.5928. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.5 miles.

31.30975, -101.59287 · 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
100.0%
4 of 4 wells
Median depth
7,720 ft
4 wells filed one
Completion to plug
32.0 years
median over 4 wells

What the state filed about each well

On the RRC proration schedule
4100.0%
A plug date is filed
4100.0%
BothOn the schedule and plugged. Neither fact cancels the other.
4100.0%
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 7,690 and 7,760 ft, median 7,720 ft, over the 4 wells that filed a depth.

Completions filed
May 1974 – Apr 2005
4 of 4 wells
Plug dates filed
Jun 2005 – Apr 2026
4 of 4 wells

Last completion to plug: a median of 32.0 years across the 4 wells that filed both dates, with the middle half between 26.3 years and 37.7 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

4 wells

42-3833047647,740 ftApr 2005Mar 2017Yes
42-3833047237,700 ftOct 1974Sep 2007Yes
42-3833043227,690 ftJun 1974Jun 2005Yes
42-3833043117,760 ftMay 1974Apr 2026Yes

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 19992017.892.37$36
Jun 19990015.942.36$0
May 19990015.792.32$0
Apr 1999022515.102.21$497
Mar 1999023512.471.84$432
Feb 1999232469.981.82$677
Jan 1999025510.381.90$484
Dec 19981753939.201.77$2,307
Nov 199814253610.892.19$2,718
Oct 199823054512.421.97$3,930
Sep 199817551112.592.08$3,267
Aug 199822061111.301.91$3,651
Jul 199819561211.742.24$3,659
Jun 199819550311.242.24$3,317
May 199818136612.622.21$3,092
Apr 199818065213.042.51$3,981
Mar 199821863612.802.31$4,259
Feb 199818252513.952.30$3,746
Jan 199817954714.702.15$3,810
Dec 199717854116.322.41$4,209
Nov 199716257518.193.09$4,723
Oct 199715962619.253.15$5,033
Sep 199719159317.742.95$5,141
Aug 199712455817.862.55$3,640
Jul 199715857517.582.25$4,070
Jun 199711857117.242.26$3,323
May 199718161318.972.31$4,849
Apr 199712349317.882.08$3,226
Mar 199718565818.951.94$4,782
Feb 199716760920.492.21$4,765
Jan 199715360323.483.54$5,727
Dec 199621259923.32$4,944
Nov 199614756821.97$3,230
Oct 199614556223.31$3,380
Sep 199614957222.22$3,311
Aug 199617660820.26$3,566
Jul 199614559619.55$2,835
Jun 199617762818.73$3,315
May 199619954219.43$3,867
Apr 199617849121.51$3,829
Mar 199621453719.38$4,147
Feb 199620842116.98$3,532
Jan 199620758617.07$3,533
Dec 199518467017.19$3,163
Nov 199522572716.00$3,600
Oct 199525976115.43$3,996
Sep 199518169816.18$2,929
Aug 199521679115.92$3,439
Jul 199524077415.24$3,658
Jun 199518373916.41$3,003
May 199522172217.56$3,881
Apr 199522168917.73$3,918
Mar 199526278416.44$4,307
Feb 199518868416.58$3,117
Jan 199526571815.92$4,219
Dec 199426276315.03$3,938
Nov 199415177715.90$2,401
Oct 199421981915.58$3,412
Sep 199419388115.29$2,951
Aug 199416885316.13$2,710
Jul 199419484617.56$3,407
Jun 199416784517.09$2,854
May 199420267115.88$3,208
Apr 199417172214.14$2,418
Mar 199420573612.46$2,554
Feb 199417159812.50$2,138
Jan 199420378412.66$2,570
Dec 199322077812.33$2,713
Nov 199318673814.49$2,695
Oct 199319180815.85$3,027
Sep 199320081315.03$3,006
Aug 199316990315.66$2,647
Jul 199319088215.46$2,937
Jun 199320789916.79$3,476
May 199321489417.68$3,784
Apr 199327366818.05$4,928
Mar 199337194318.14$6,730
Feb 199327579217.90$4,923
Jan 199333890916.93$5,722

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                    2 bbl  × $ 17.89 =        $36
Casinghead gas         0 Mcf  × $  2.37 =         $0

────────────────────────────────────────────────────
Month total                                      $36

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/6442 is the state's own key, not one this site invented.