DE PORRAS, V.G.

Operated by ANDERSON OIL LTD. (P-5 22499) in the LOMA BLANCA (FRIO 7300) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 12820District 04Field 54492284OilCasinghead gasSaveExport
Value, all time
$143 k
Mar 1999 – Aug 2003
Value, last 12 filed months
$514
at the published price for each month
Months reported
54
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 5 leases and 5 wells, and the rule below applies to all of them.

Discovered
1967-09-19
as the register files it
Field class
Oil and gas
the register's own label
Between wells
no field rule filed
From a lease line
no field rule filed

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
OilDisposition2,075 bbl$49,063
Casinghead gasProduction24,495 Mcf$94,246
Total$143,309

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 27.2303, -98.1079. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.0 miles.

27.23026, -98.10794 · 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
9,615 ft
1 wells filed one
Completion to plug
8.6 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 9,615 ft.

Completions filed
Jul 2006
1 of 1 wells
Plug dates filed
Feb 2015
1 of 1 wells

Last completion to plug: a median of 8.6 years across the 1 well that filed both dates, with the middle half between 8.6 years and 8.6 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

1 well

42-0470136519,615 ftJul 2006Feb 2015Yes

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 (54)

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

54 months

Aug 20030029.765.13$0
Jul 20030029.415.17$0
Jun 200318028.565.98$514
May 20030026.595.97$0
Apr 20030026.675.41$0
Mar 20030031.146.10$0
Feb 20030033.487.93$0
Jan 20030030.315.58$0
Dec 20020026.914.85$0
Nov 20020024.664.14$0
Oct 20020026.464.23$0
Sep 20020027.443.64$0
Aug 20020025.963.16$0
Jul 20020024.583.06$0
Jun 20020023.733.34$0
May 20020024.663.58$0
Apr 20020023.653.51$0
Mar 20020022.003.10$0
Feb 20020018.222.38$0
Jan 20020017.172.38$0
Dec 2001105016.932.36$1,778
Nov 20010018.072.41$0
Oct 20010019.782.53$0
Sep 2001039024.262.25$878
Aug 2001044524.873.05$1,359
Jul 2001041423.933.20$1,324
Jun 2001038324.563.82$1,465
May 200116258425.524.31$6,650
Apr 2001062624.685.34$3,340
Mar 2001071224.545.38$3,828
Feb 200116890427.755.77$9,875
Jan 2001097127.478.40$8,155
Dec 2000079826.889.12$7,280
Nov 2000076532.215.66$4,328
Oct 2000094331.235.15$4,852
Sep 200015898131.875.19$10,123
Aug 2000081829.644.54$3,714
Jul 200016866728.534.09$7,521
Jun 2000088429.304.40$3,887
May 2000089727.263.68$3,301
Apr 200016784824.513.12$6,736
Mar 2000090028.422.86$2,574
Feb 200017181127.622.73$6,934
Jan 2000084125.272.48$2,086
Dec 199918359524.282.42$5,885
Nov 199918266023.192.43$5,827
Oct 1999091220.982.80$2,557
Sep 199918392821.752.62$6,411
Aug 1999088719.262.88$2,551
Jul 19991801,00217.892.37$5,597
Jun 1999095215.942.36$2,249
May 199918094215.792.32$5,029
Apr 1999091415.102.21$2,018
Mar 1999501,12112.471.84$2,684

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.

Jun 2003 — as filed, then multipliedworked
Oil                   18 bbl  × $ 28.56 =       $514
Casinghead gas         0 Mcf  × $  5.98 =         $0

────────────────────────────────────────────────────
Month total                                     $514

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/12820 is the state's own key, not one this site invented.