MCLEAN, MARRS

Operated by KAMLOK OIL & GAS, INC. (P-5 450121) in the BIG HILL field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 6545District 03Field 07884001Hydrogen sulphide fieldOilCasinghead gasSaveExport
Value, all time
$6 k
Jan 1993 – Sep 1994
Value, last 12 filed months
$50
at the published price for each month
Months reported
21
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 31 leases and 142 wells, and the rule below applies to all of them.

Discovered
1949-11-06
as the register files it
Field class
Oil
the register's own label
Between wells
0 ft
minimum
From a lease line
0 ft
minimum

A drilling unit in this field needs at least 0 acres. The field rule took effect on 1949-11-06.

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: YARDSTICK FOR EACH WELL - 20 ACRE

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
OilDisposition330 bbl$5,636
Casinghead gasProduction980 Mcf$0
Total$5,636

980 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 (11)

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 29.7565, -94.2577. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.6 miles. 3 wells have no surveyed location and are left out of it.

29.75658, -94.25747 · centre of 8 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%
11 of 11 wells
With a plug date
72.7%
8 of 11 wells
Median depth
6,396 ft
8 wells filed one
Completion to plug
9.3 years
median over 8 wells

What the state filed about each well

On the RRC proration schedule
11100.0%
A plug date is filed
872.7%
BothOn the schedule and plugged. Neither fact cancels the other.
872.7%
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

Total depth in feet, 8 of 11 wells. Median 6,396 ft, with the middle half between 5,838 and 8,036 ft; the shallowest is 1,550 ft and the deepest 9,193 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, 8 of 11 wells, Apr 1963 – Jul 1989. This is the LAST completion filed on each wellbore, not the first — a well recompleted in 2019 counts once, in the 2010s.

Completions filed
Apr 1963 – Jul 1989
8 of 11 wells; 3 filed none
Plug dates filed
Jul 1973 – Aug 1994
8 of 11 wells; 3 filed none

Last completion to plug: a median of 9.3 years across the 8 wells that filed both dates, with the middle half between 5.1 years and 17.7 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

11 wells

42-245808457 LYes
42-245808467 UYes
42-2458085016Yes
42-24502788126,122 ftJul 1989Jul 1994Yes
42-2450277829,193 ftJun 1989Jul 1994Yes
42-24502787115,650 ftJun 1989Aug 1994Yes
42-2450278378,198 ftFeb 1981Aug 1994Yes
42-24502793181,550 ftDec 1980Jul 1994Yes
42-24502786105,900 ftMay 1972Jul 1973Yes
42-24502790156,670 ftAug 1964Aug 1994Yes
42-24502792177,982 ftApr 1963Jul 1994Yes

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 (21)

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

21 months

Sep 19940015.29$0
Aug 19940016.13$0
Jul 19940017.56$0
Jun 19940017.09$0
May 19940015.88$0
Apr 19940014.14$0
Mar 19944012.46$50
Feb 19940012.50$0
Jan 19940012.66$0
Dec 19930012.33$0
Nov 19930014.49$0
Oct 19930015.85$0
Sep 19935015.03$75
Aug 19930015.66$0
Jul 199314015.46$216
Jun 199361016.79$1,024
May 19930017.68$0
Apr 19930018.05$0
Mar 19930018.14$0
Feb 199310942017.90$1,951
Jan 199313756016.93$2,319

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.

Mar 1994 — as filed, then multipliedworked
Oil                    4 bbl  × $ 12.46 =        $50
Casinghead gas         0 Mcf  ×  no price            —

────────────────────────────────────────────────────
Month total                                      $50

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. 03/O/6545 is the state's own key, not one this site invented.