LOTT TRUST

Operated by PATTERSON PETROLEUM, INC. (P-5 643392) in the HAPPY (SPRABERRY LIME) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 66761District 8AField 38866600Hydrogen sulphide fieldOilCasinghead gasSaveExport
Value, all time
$4.2 M
Jan 1993 – Nov 1999
Value, last 12 filed months
$658 k
at the published price for each month
Months reported
83
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 23 leases and 92 wells, and the rule below applies to all of them.

Discovered
1989-01-13
as the register files it
Field class
Oil
the register's own label
Between wells
933 ft
minimum
From a lease line
467 ft
minimum

A drilling unit in this field needs at least 40 acres. The field rule took effect on 1991-01-13.

The register flags this field for hydrogen sulphide. That is a poisonous gas that occurs naturally in some formations. The flag is a property of the field as the Commission records it. It is not a measurement taken at this lease, and it is not a statement that gas is escaping anywhere.

The Commission's schedule remark for this field reads: UNIT AND CAP EXEMPT ALLOW EFF 1-1-93 PER LETTER DATED 1-28-93

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
OilDisposition253,770 bbl$4,158,670
Casinghead gasProduction54,795 Mcf$70,641
Total$4,229,311

24,184 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 (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 32.9994, -101.3705. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.1 miles.

32.99828, -101.36971 · centre of 1 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
5,100 ft
2 wells filed one
Completion to plug
17.2 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 5,100 and 5,100 ft, median 5,100 ft, over the 2 wells that filed a depth.

Completions filed
Oct 1991 – Nov 1995
2 of 2 wells
Plug dates filed
Dec 2008
1 of 2 wells; 1 filed none

Last completion to plug: a median of 17.2 years across the 1 well that filed both dates, with the middle half between 17.2 years and 17.2 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

2 wells

42-1693334135,100 ftNov 1995
42-1693304215,100 ftOct 1991Dec 2008Yes

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 (83)

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

83 months

Nov 19990023.192.43$0
Oct 19990020.982.80$0
Sep 19990021.752.62$0
Aug 19994,1821,20919.262.88$84,022
Jul 19994,8111,42817.892.37$89,457
Jun 19995,2471,46015.942.36$87,086
May 19995,1131,22415.792.32$83,575
Apr 19995,1021,09015.102.21$79,447
Mar 19996,37073912.471.84$80,792
Feb 19995,5701,1099.981.82$57,605
Jan 19995,40393110.381.90$57,852
Dec 19983,9597379.201.77$37,730
Nov 19983,96385710.892.19$45,030
Oct 19986,16279412.421.97$78,096
Sep 19985,8911,34712.592.08$76,973
Aug 19986,2641,33711.301.91$73,333
Jul 19986,3671,19111.742.24$77,413
Jun 19984,37383811.242.24$51,027
May 19985,0391,16912.622.21$66,171
Apr 19985,5891,01513.042.51$75,423
Mar 19985,32288412.802.31$70,163
Feb 19984,92268913.952.30$70,246
Jan 19985,80496214.702.15$87,392
Dec 19975,89242816.322.41$97,189
Nov 19975,67781418.193.09$105,778
Oct 19975,8721,01919.253.15$116,246
Sep 19975,07423017.742.95$90,692
Aug 19974,93687717.862.55$90,397
Jul 19974,8171,02817.582.25$86,993
Jun 19974,97985917.242.26$87,777
May 19974,22783318.972.31$82,109
Apr 19974,58078017.882.08$83,515
Mar 19974,53290618.951.94$87,638
Feb 19973,96791320.492.21$83,298
Jan 19974,44091423.483.54$107,486
Dec 19964,6731,25323.32$108,974
Nov 19965,0261,09221.97$110,421
Oct 19964,9671,04223.31$115,781
Sep 19964,97491122.22$110,522
Aug 19965,2691,28920.26$106,750
Jul 19965,4341,27519.55$106,235
Jun 19966,1871,11518.73$115,883
May 19966,2971,28519.43$122,351
Apr 19963,04282221.51$65,433
Mar 19964,4711,05019.38$86,648
Feb 19964,2331,02516.98$71,876
Jan 19963,79363217.07$64,747
Dec 19954,27158417.19$73,418
Nov 19952,44350616.00$39,088
Oct 199568336315.43$10,539
Sep 199563342616.18$10,242
Aug 199555541715.92$8,836
Jul 199582942315.24$12,634
Jun 199550454616.41$8,271
May 199557844017.56$10,150
Apr 199565744717.73$11,649
Mar 199558949316.44$9,683
Feb 199553936716.58$8,937
Jan 199565740615.92$10,459
Dec 199461847215.03$9,289
Nov 199451434815.90$8,173
Oct 199461830215.58$9,628
Sep 199473635115.29$11,253
Aug 19945829416.13$9,388
Jul 199465315817.56$11,467
Jun 199470125417.09$11,980
May 199469926115.88$11,100
Apr 199472626214.14$10,266
Mar 199475731812.46$9,432
Feb 199468030212.50$8,500
Jan 199476028712.66$9,622
Dec 199383724012.33$10,320
Nov 199395021714.49$13,766
Oct 199378924315.85$12,506
Sep 199373024115.03$10,972
Aug 199360822115.66$9,521
Jul 199399929515.46$15,445
Jun 19936651616.79$11,165
May 199396414917.68$17,044
Apr 19931,13628118.05$20,505
Mar 199382729918.14$15,002
Feb 199360521217.90$10,830
Jan 199386615216.93$14,661

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.

Aug 1999 — as filed, then multipliedworked
Oil                4,182 bbl  × $ 19.26 =    $80,545
Casinghead gas     1,209 Mcf  × $  2.88 =     $3,477

────────────────────────────────────────────────────
Month total                                  $84,022

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. 8A/O/66761 is the state's own key, not one this site invented.