MCDONALD

Operated by WCS OIL AND GAS CORPORATION (P-5 902626) in the PEARSALL (AUSTIN CHALK) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 12883District 01Field 69981125OilCasinghead gasSaveExport
Value, all time
$231 k
Jan 1993 – Apr 1997
Value, last 12 filed months
$4 k
at the published price for each month
Months reported
52
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 1,992 leases and 3,388 wells, and the rule below applies to all of them.

Discovered
1936-12-28
as the register files it
Field class
Oil and gas
the register's own label
Between wells
0 ft
minimum
From a lease line
330 ft
minimum

A drilling unit in this field needs at least 80 acres. The field rule took effect on 2025-06-17.

The Commission's schedule remark for this field reads: LEASE PLAT. PRORATION PLAT IS NOT REQUIRED.

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
OilDisposition14,349 bbl$230,546
Casinghead gasProduction23,026 Mcf$0
Total$230,546

23,026 Mcf of this lease's gas, across 39 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 28.6476, -99.2911. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.0 miles.

28.64758, -99.29112 · 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
9,585 ft
1 wells filed one
Completion to plug
6.1 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 9,585 ft.

Completions filed
Nov 1990
1 of 1 wells
Plug dates filed
Dec 1996
1 of 1 wells

Last completion to plug: a median of 6.1 years across the 1 well that filed both dates, with the middle half between 6.1 years and 6.1 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

1 well

42-1633284019,585 ftNov 1990Dec 1996Yes

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 (52)

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

52 months

Apr 19970017.882.08$0
Mar 19970018.951.94$0
Feb 1997200020.492.21$4,098
Jan 19970023.483.54$0
Dec 19960023.32$0
Nov 19960021.97$0
Oct 19960023.31$0
Sep 19960022.22$0
Aug 19964020.26$81
Jul 19960019.55$0
Jun 19960018.73$0
May 19960019.43$0
Apr 19960021.51$0
Mar 1996157719.38$3,043
Feb 199633666116.98$5,705
Jan 199632486417.07$5,531
Dec 199534973217.19$5,999
Nov 199530872316.00$4,928
Oct 199533569815.43$5,169
Sep 199559037516.18$9,546
Aug 199533331615.92$5,301
Jul 199527635015.24$4,206
Jun 199542854116.41$7,023
May 199549657517.56$8,710
Apr 199532329417.73$5,727
Mar 199560219616.44$9,897
Feb 199516219016.58$2,686
Jan 19951276315.92$2,022
Dec 1994029815.03$0
Nov 199412417715.90$1,972
Oct 199429635215.58$4,612
Sep 199419030815.29$2,905
Aug 199419330916.13$3,113
Jul 199433040617.56$5,795
Jun 199436512717.09$6,238
May 199418023615.88$2,858
Apr 199433137314.14$4,680
Mar 1994632112.46$7,875
Feb 1994527112.50$6,588
Jan 1994358112.66$4,532
Dec 19933709012.33$4,562
Nov 199359859014.49$8,665
Oct 199320566215.85$3,249
Sep 199344968215.03$6,748
Aug 199339177915.66$6,123
Jul 199319270015.46$2,968
Jun 199354076016.79$9,067
May 19933631,00517.68$6,418
Apr 19935391,00718.05$9,729
Mar 19937281,26618.14$13,206
Feb 19933932,64217.90$7,035
Jan 19937053,66916.93$11,936

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.

Feb 1997 — as filed, then multipliedworked
Oil                  200 bbl  × $ 20.49 =     $4,098
Casinghead gas         0 Mcf  × $  2.21 =         $0

────────────────────────────────────────────────────
Month total                                   $4,098

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. 01/O/12883 is the state's own key, not one this site invented.