STATE TRACT -181-

Operated by FINA OIL & CHEMICAL COMPANY (P-5 268321) in the BIRD ISLAND (10-A SEG A) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 10851District 04Field 08318111NGPA filingOilCasinghead gasSaveExport
Value, all time
$83 k
Jan 1993 – Jan 1999
Value, last 12 filed months
$0
at the published price for each month
Months reported
73
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 4 leases and 5 wells, and the rule below applies to all of them.

Discovered
1957-10-14
as the register files it
Field class
Oil
the register's own label
Between wells
1,320 ft
minimum
From a lease line
660 ft
minimum

A drilling unit in this field needs at least 80 acres.

The Commission's schedule remark for this field reads: TRANS. FROM BIRD ISLAND FIELD, EFF. 10-14-57 CAL. DAY TEST

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
OilDisposition4,757 bbl$83,495
Casinghead gasProduction16,114 Mcf$0
Total$83,495

16,114 Mcf of this lease's gas, across 13 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 27.5246, -97.2960. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.0 miles.

27.52455, -97.29604 · 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
8,000 ft
1 wells filed one
Completion to plug
13.9 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 8,000 ft.

Completions filed
Dec 1984
1 of 1 wells
Plug dates filed
Nov 1998
1 of 1 wells

Last completion to plug: a median of 13.9 years across the 1 well that filed both dates, with the middle half between 13.9 years and 13.9 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

1 well

42-2733187518,000 ftDec 1984Nov 1998Yes

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 (73)

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

73 months

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 19952016.18$32
Aug 1995183315.92$287
Jul 1995698415.24$1,052
Jun 1995481,52116.41$788
May 19953023,23917.56$5,303
Apr 199537610917.73$6,666
Mar 19953303,12416.44$5,425
Feb 19951012,49016.58$1,675
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 19932015.66$31
Jul 19932729615.46$417
Jun 199324016.79$403
May 19933041,24117.68$5,375
Apr 199360891918.05$10,974
Mar 19939621,58718.14$17,451
Feb 199382471617.90$14,750
Jan 199376075516.93$12,867

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.

Sep 1995 — as filed, then multipliedworked
Oil                    2 bbl  × $ 16.18 =        $32
Casinghead gas         0 Mcf  ×  no price            —

────────────────────────────────────────────────────
Month total                                      $32

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/10851 is the state's own key, not one this site invented.