JOHN

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 67501District 8AField 38866600Hydrogen sulphide fieldOilCasinghead gasSaveExport
Value, all time
$6.7 M
Jan 1996 – Nov 1999
Value, last 12 filed months
$2.4 M
at the published price for each month
Months reported
47
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
OilDisposition452,565 bbl$6,414,460
Casinghead gasProduction104,438 Mcf$239,118
Total$6,653,578

89 Mcf of this lease's gas, across 2 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 (10)

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 32.9973, -101.3762. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.8 miles.

32.99661, -101.37645 · centre of 7 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
10.0%
1 of 10 wells
With a plug date
10.0%
1 of 10 wells
Median depth
5,120 ft
10 wells filed one
Completion to plug
23 months
median over 1 well

What the state filed about each well

On the RRC proration schedule
110.0%
A plug date is filed
110.0%
BothOn the schedule and plugged. Neither fact cancels the other.
110.0%
NeitherNo plug date, and not on the schedule.
990.0%

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

Total depth in feet, 10 of 10 wells. Median 5,120 ft, with the middle half between 5,100 and 5,138 ft; the shallowest is 5,080 ft and the deepest 5,150 ft. The median is published rather than the mean, because a single mis-keyed depth moves a mean and cannot move a median.

When they were last completed

Last completion by decade, 10 of 10 wells, Jan 1996 – Apr 2000. This is the LAST completion filed on each wellbore, not the first — a well recompleted in 2019 counts once, in the 2010s.

Completions filed
Jan 1996 – Apr 2000
10 of 10 wells
Plug dates filed
Dec 1997
1 of 10 wells; 9 filed none

Last completion to plug: a median of 23 months across the 1 well that filed both dates, with the middle half between 23 months and 23 months. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

10 wells

42-169334961A5,100 ftApr 2000
42-16933519105,100 ftJun 1998
42-1693351295,100 ftMay 1998
42-1693348865,150 ftOct 1997
42-1693348475,140 ftSep 1997
42-1693346655,130 ftAug 1997
42-1693346745,110 ftJul 1997
42-1693346535,130 ftMay 1997
42-1693345425,080 ftApr 1997
42-1693335115,150 ftJan 1996Dec 1997Yes

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 (47)

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

47 months

Nov 19990023.192.43$0
Oct 19990020.982.80$0
Sep 19990021.752.62$0
Aug 199918,4077,62419.262.88$376,442
Jul 199918,8247,36317.892.37$354,229
Jun 199917,3976,05415.942.36$291,608
May 199919,0126,45915.792.32$315,191
Apr 199919,1515,62715.102.21$301,605
Mar 199918,3823,17712.471.84$235,064
Feb 199917,9774,4979.981.82$187,585
Jan 199919,6463,76310.381.90$211,075
Dec 199811,5852,2889.201.77$110,639
Nov 199814,7293,81110.892.19$168,729
Oct 199818,7284,70712.421.97$241,871
Sep 199818,2194,68612.592.08$239,136
Aug 199818,8484,80811.301.91$222,153
Jul 199822,2035,45511.742.24$272,868
Jun 199815,4023,48111.242.24$180,906
May 199819,3444,43812.622.21$253,913
Apr 199818,0484,08813.042.51$245,588
Mar 199818,0893,10712.802.31$238,715
Feb 199817,0803,13113.952.30$245,465
Jan 199820,7183,19114.702.15$311,431
Dec 199719,4191,58016.322.41$320,728
Nov 199716,3282,86118.193.09$305,842
Oct 199715,8823,05719.253.15$315,358
Sep 199711,95168717.742.95$214,041
Aug 199711,0882,52817.862.55$204,490
Jul 19977,5581,49317.582.25$136,224
Jun 19975,09520517.242.26$88,301
May 19972,57110218.972.31$49,007
Apr 199708117.882.08$169
Mar 19970018.951.94$0
Feb 19970020.492.21$0
Jan 19970023.483.54$0
Dec 19960023.32$0
Nov 19960021.97$0
Oct 19960023.31$0
Sep 19960022.22$0
Aug 19960020.26$0
Jul 19960019.55$0
Jun 19960018.73$0
May 199655019.43$1,069
Apr 19964021.51$86
Mar 19960019.38$0
Feb 1996334616.98$5,671
Jan 19964918317.07$8,381

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               18,407 bbl  × $ 19.26 =   $354,519
Casinghead gas     7,624 Mcf  × $  2.88 =    $21,924

────────────────────────────────────────────────────
Month total                                 $376,442

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/67501 is the state's own key, not one this site invented.