SIMPSON

Operated by WALSH & WATTS, INC. (P-5 895060) in the ENGLE (STRAWN) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 4486District 09Field 29096666OilCasinghead gasSaveExport
Value, all time
$22 k
Jan 1993 – Jul 1995
Value, last 12 filed months
$8 k
at the published price for each month
Months reported
31
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 21 leases and 30 wells, and the rule below applies to all of them.

Discovered
1951-09-06
as the register files it
Field class
Oil
the register's own label
Between wells
660 ft
minimum
From a lease line
330 ft
minimum

A drilling unit in this field needs at least 20 acres.

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
OilDisposition1,384 bbl$22,178
Casinghead gasProduction1,204 Mcf$0
Total$22,178

1,204 Mcf of this lease's gas, across 28 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 33.6719, -97.7568. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.2 miles.

33.67194, -97.75676 · 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%
2 of 2 wells
With a plug date
100.0%
2 of 2 wells
Median depth
6,981 ft
2 wells filed one
Completion to plug
20.8 years
median over 1 well

What the state filed about each well

On the RRC proration schedule
2100.0%
A plug date is filed
2100.0%
BothOn the schedule and plugged. Neither fact cancels the other.
2100.0%
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 6,461 and 7,500 ft, median 6,981 ft, over the 2 wells that filed a depth.

Completions filed
Jul 1974
1 of 2 wells; 1 filed none
Plug dates filed
May 1995
2 of 2 wells

Last completion to plug: a median of 20.8 years across the 1 well that filed both dates, with the middle half between 20.8 years and 20.8 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

2 wells

42-3370255516,461 ftMay 1995Yes
42-3373024327,500 ftJul 1974May 1995Yes

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 (31)

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

31 months

Jul 19950015.24$0
Jun 19950016.41$0
May 1995155017.56$2,722
Apr 199504317.73$0
Mar 19951624316.44$2,663
Feb 199504316.58$0
Jan 19951634315.92$2,595
Dec 199404315.03$0
Nov 199404315.90$0
Oct 199404315.58$0
Sep 199404315.29$0
Aug 199404316.13$0
Jul 19941124317.56$1,967
Jun 199404317.09$0
May 199404315.88$0
Apr 19941104314.14$1,555
Mar 19941004312.46$1,246
Feb 199404312.50$0
Jan 199404312.66$0
Dec 1993964312.33$1,184
Nov 199304314.49$0
Oct 1993964315.85$1,522
Sep 199304315.03$0
Aug 199304315.66$0
Jul 19931054315.46$1,623
Jun 199304316.79$0
May 19931084317.68$1,909
Apr 199304318.05$0
Mar 1993974318.14$1,760
Feb 1993804317.90$1,432
Jan 199304316.93$0

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 1995 — as filed, then multipliedworked
Oil                  155 bbl  × $ 17.56 =     $2,722
Casinghead gas         0 Mcf  ×  no price            —

────────────────────────────────────────────────────
Month total                                   $2,722

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. 09/O/4486 is the state's own key, not one this site invented.