MARSHALL, T.

Operated by STALEY OPERATING CO. (P-5 811415) in the LEVELLAND field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 63426District 8AField 53411001Hydrogen sulphide fieldNGPA filingOilCasinghead gasSaveExport
Value, all time
$22 k
Jan 1993 – Mar 1996
Value, last 12 filed months
$6 k
at the published price for each month
Months reported
39
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 568 leases and 7,034 wells, and the rule below applies to all of them.

Discovered
1945-01-17
as the register files it
Field class
Oil
the register's own label
Between wells
880 ft
minimum
From a lease line
440 ft
minimum

A drilling unit in this field needs at least 21.25 acres.

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: ASSOCIATED GAS FIELD LEVELLAND (SAN ANDRES)

Severance-tax incentive filings

Applications the operator filed to have this lease's gas taxed at a reduced state rate. A filing is an application, and this page never calls one a reduction that was granted.

ProgrammeFilingsWith an approval dateDatedDocket
NGPA1none

This says nothing about a royalty. A severance tax is charged to the operator. Whether a reduced rate reaches a royalty owner depends on the wording of the lease instrument, which is a private contract this site does not hold.

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
OilDisposition1,342 bbl$21,712
Casinghead gasProduction4,517 Mcf$0
Total$21,712

4,517 Mcf of this lease's gas, across 36 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 (1)

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 33.6483, -102.6268. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.0 miles.

33.64834, -102.62675 · 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%
1 of 1 wells
With a plug date
100.0%
1 of 1 wells
Median depth
4,798 ft
1 wells filed one
Completion to plug
14.4 years
median over 1 well

What the state filed about each well

On the RRC proration schedule
1100.0%
A plug date is filed
1100.0%
BothOn the schedule and plugged. Neither fact cancels the other.
1100.0%
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

The one well that filed a depth was drilled to 4,798 ft.

Completions filed
Jul 1981
1 of 1 wells
Plug dates filed
Dec 1995
1 of 1 wells

Last completion to plug: a median of 14.4 years across the 1 well that filed both dates, with the middle half between 14.4 years and 14.4 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

1 well

42-0793140014,798 ftJul 1981Dec 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 (39)

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

39 months

Mar 19960019.38$0
Feb 19960016.98$0
Jan 199637017.07$632
Dec 199504417.19$0
Nov 199526016.00$32
Oct 199515612115.43$2,407
Sep 1995010416.18$0
Aug 199503715.92$0
Jul 199504015.24$0
Jun 1995015716.41$0
May 1995013017.56$0
Apr 199516310617.73$2,890
Mar 199509516.44$0
Feb 1995010916.58$0
Jan 1995013215.92$0
Dec 1994010515.03$0
Nov 199416613215.90$2,639
Oct 1994015115.58$0
Sep 1994014215.29$0
Aug 1994016816.13$0
Jul 1994011617.56$0
Jun 19941564517.09$2,666
May 1994013615.88$0
Apr 1994018914.14$0
Mar 199414814512.46$1,844
Feb 1994012912.50$0
Jan 1994014812.66$0
Dec 1993017012.33$0
Nov 1993014114.49$0
Oct 199320012815.85$3,170
Sep 1993015215.03$0
Aug 1993013615.66$0
Jul 199309815.46$0
Jun 1993019116.79$0
May 199315510917.68$2,740
Apr 1993017018.05$0
Mar 1993016318.14$0
Feb 1993014417.90$0
Jan 199315917416.93$2,692

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.

Jan 1996 — as filed, then multipliedworked
Oil                   37 bbl  × $ 17.07 =       $632
Casinghead gas         0 Mcf  ×  no price            —

────────────────────────────────────────────────────
Month total                                     $632

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/63426 is the state's own key, not one this site invented.