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MCGILL, J.C. JR. STATE

Operated by EXXON MOBIL CORPORATION (P-5 257128) in the KELSEY, SOUTH (ZONE 19-B, S) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 5143District 04Field 48635252NGPA filingOilCasinghead gasSaveExport
Value, all time
$23 k
Jan 1993 – Jun 2000
Value, last 12 filed months
$0
at the published price for each month
Months reported
90
no gaps in the span
Streams
2
oil, casinghead gas

The KELSEY, SOUTH (ZONE 19-B, S) field

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 1 leases and 44 wells, and the rule below applies to all of them.

Discovered
1938-09-06
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 40 acres.

The Commission's schedule remark for this field reads: “WATER INJ.GAS BANK VOL.EQUIV.TSF.ALLOW.AUTH.1 WL.PROD4X TOP ALLOW.”

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
NGPA4none——

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
OilDisposition1,290 bbl$23,013
Casinghead gasProduction711 Mcf$0
Total$23,013

711 Mcf of this lease's gas, across 4 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 (44)

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 26.7679, -98.3935. A lease has no coordinate of its own — that point is the mean of its wells, and they span 1.8 miles. 2 wells have no surveyed location and are left out of it.

26.76831, -98.39371 · centre of 42 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%
44 of 44 wells
With a plug date
95.5%
42 of 44 wells
Median depth
6,375 ft
42 wells filed one
Completion to plug
17.6 years
median over 21 wells

What the state filed about each well

On the RRC proration schedule
44100.0%
A plug date is filed
4295.5%
BothOn the schedule and plugged. Neither fact cancels the other.
4295.5%
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, 42 of 44 wells. Median 6,375 ft, with the middle half between 6,115 and 7,125 ft; the shallowest is 6,040 ft and the deepest 9,306 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, 21 of 44 wells, Mar 1961 – Aug 1997. This is the LAST completion filed on each wellbore, not the first — a well recompleted in 2019 counts once, in the 2010s.

Completions filed
Mar 1961 – Aug 1997
21 of 44 wells; 23 filed none
Plug dates filed
Sep 1975 – Jan 2010
42 of 44 wells; 2 filed none

Last completion to plug: a median of 17.6 years across the 21 wells that filed both dates, with the middle half between 6.2 years and 27.8 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

44 wells

42-04780354219 T———Yes
42-04780356249———Yes
42-42700218189 C6,400 ft—Sep 1994Yes
42-42700222207 C8,300 ft—Jun 1978Yes
42-427002242126,419 ft—Sep 1978Yes
42-42700232236 C6,400 ft—Oct 1978Yes
42-427002352426,490 ft—Sep 1975Yes
42-427002452846,110 ft—Oct 1978Yes
42-42700249297 T6,200 ft—Jul 1990Yes
42-427002513036,250 ft—Dec 1994Yes
42-4270025589,265 ft—Jul 1992Yes
42-4270026714 T8,500 ft—Jul 1992Yes
42-427002692508,500 ft—Aug 1976Yes
42-427002742326,900 ft—Oct 1975Yes
42-427002762906,115 ft—Aug 1978Yes
42-427002772206,422 ft—Dec 1976Yes
42-427002782826,112 ft—Sep 1977Yes
42-427046813486,130 ft—Dec 1994Yes
42-427301384236,060 ft—Dec 1994Yes
42-427304414386,040 ft—Dec 1994Yes
42-427306224436,115 ft—Dec 1994Yes
42-427306654476,140 ft—Dec 1994Yes
42-42780713126,800 ft—Jul 1992Yes
42-42730576441 C7,848 ftAug 1997Oct 2000Yes
42-427002312756,110 ftSep 1993May 1995Yes
42-42731603239,306 ftApr 1992Jan 2010Yes
42-42700246287 F8,500 ftFeb 1992Dec 1995Yes
42-427002442836,110 ftApr 1987Jun 1995Yes
42-427306844458,000 ftMar 1986May 1992Yes
42-42731846502 F6,600 ftMar 1984May 1992Yes
42-42700250301 F6,200 ftMar 1979Jun 1983Yes
42-42700273251 C7,200 ftMar 1979Nov 1982Yes
42-427002811866,400 ftFeb 1972Aug 1994Yes
42-42700221199 T7,865 ftSep 1971Oct 1978Yes
42-42700262311 T8,802 ftJul 1971Jan 1987Yes
42-427301414226,085 ftApr 1971Mar 1992Yes
42-42704959381 D6,350 ftOct 1967Aug 1995Yes
42-42704714347 F6,145 ftAug 1965Nov 1994Yes
42-42704682176,085 ftJul 1965Jul 1992Yes
42-42700261262 F6,461 ftJan 1962Mar 1992Yes
42-427002802966,300 ftDec 1961Dec 1994Yes
42-427002482946,200 ftNov 1961Dec 1994Yes
42-427002412796,050 ftJun 1961Dec 1994Yes
42-427002422806,110 ftMar 1961Oct 1978Yes

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 (90)

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

90 months

Jun 20000029.304.40$0
May 20000027.263.68$0
Apr 20000024.513.12$0
Mar 20000028.422.86$0
Feb 20000027.622.73$0
Jan 20000025.272.48$0
Dec 19990024.282.42$0
Nov 19990023.192.43$0
Oct 19990020.982.80$0
Sep 19990021.752.62$0
Aug 19990019.262.88$0
Jul 19990017.892.37$0
Jun 19990015.942.36$0
May 19990015.792.32$0
Apr 19990015.102.21$0
Mar 19990012.471.84$0
Feb 1999009.981.82$0
Jan 19990010.381.90$0
Dec 1998009.201.77$0
Nov 19980010.892.19$0
Oct 19980012.421.97$0
Sep 19980012.592.08$0
Aug 19980011.301.91$0
Jul 19980011.742.24$0
Jun 19980011.242.24$0
May 19980012.622.21$0
Apr 19980013.042.51$0
Mar 19980012.802.31$0
Feb 19980013.952.30$0
Jan 19980014.702.15$0
Dec 19970016.322.41$0
Nov 19970018.193.09$0
Oct 19970019.253.15$0
Sep 19970017.742.95$0
Aug 19970017.862.55$0
Jul 19970017.582.25$0
Jun 19970017.242.26$0
May 19970018.972.31$0
Apr 19970017.882.08$0
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 19960019.43—$0
Apr 19960021.51—$0
Mar 19960019.38—$0
Feb 19960016.98—$0
Jan 19960017.07—$0
Dec 19950017.19—$0
Nov 19950016.00—$0
Oct 19950015.43—$0
Sep 19950016.18—$0
Aug 19950015.92—$0
Jul 19950015.24—$0
Jun 19950016.41—$0
May 19950017.56—$0
Apr 19950017.73—$0
Mar 19950016.44—$0
Feb 19950016.58—$0
Jan 19950015.92—$0
Dec 19940015.03—$0
Nov 19940015.90—$0
Oct 19940015.58—$0
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 19940012.46—$0
Feb 19940012.50—$0
Jan 19940012.66—$0
Dec 19930012.33—$0
Nov 19930014.49—$0
Oct 19930015.85—$0
Sep 19930015.03—$0
Aug 19930015.66—$0
Jul 19930015.46—$0
Jun 19930016.79—$0
May 19930017.68—$0
Apr 199348914218.05—$8,826
Mar 199331227018.14—$5,660
Feb 1993256317.90—$4,582
Jan 199323329616.93—$3,945

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.

Apr 1993 — as filed, then multipliedworked
Oil                  489 bbl  × $ 18.05 =     $8,826
Casinghead gas       142 Mcf  ×  no price            —

────────────────────────────────────────────────────
Month total                                   $8,826

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. 04/O/5143 is the state's own key, not one this site invented.