ROOKE, B. D.

Operated by LAROCO LLP (P-5 487123) in the LA ROSA (6750) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 4252District 02Field 50975814OilCasinghead gasSaveExport
Value, all time
$95 k
Jan 1993 – Mar 1995
Value, last 12 filed months
$45 k
at the published price for each month
Months reported
27
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 9 wells, and the rule below applies to all of them.

Discovered
1966-04-25
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

The Commission's schedule remark for this field reads: 02-0206550, EFFECTIVE 11/21/94

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
OilDisposition6,250 bbl$94,966
Casinghead gasProduction27,298 Mcf$0
Total$94,966

27,298 Mcf of this lease's gas, across 18 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 (6)

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 28.1648, -97.3401. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.7 miles.

28.16558, -97.33981 · 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%
6 of 6 wells
With a plug date
33.3%
2 of 6 wells
Median depth
8,375 ft
6 wells filed one
Completion to plug
34.1 years
median over 2 wells

What the state filed about each well

On the RRC proration schedule
6100.0%
A plug date is filed
233.3%
BothOn the schedule and plugged. Neither fact cancels the other.
233.3%
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

Between 6,770 and 8,410 ft, median 8,375 ft, over the 6 wells that filed a depth.

Completions filed
Apr 1966 – Jan 2014
6 of 6 wells
Plug dates filed
Sep 2005 – Feb 2020
2 of 6 wells; 4 filed none

Last completion to plug: a median of 34.1 years across the 2 wells that filed both dates, with the middle half between 24.3 years and 44.0 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

6 wells

42-39103395478,400 ftJan 2014Yes
42-39103398516,770 ftJan 1997Yes
42-391033441 L6,850 ftNov 1995Yes
42-39103393458,350 ftMay 1991Sep 2005Yes
42-39130022568,410 ftSep 1976Yes
42-3910339143 U8,403 ftApr 1966Feb 2020Yes

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 (27)

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

27 months

Mar 19950016.44$0
Feb 19950016.58$0
Jan 19950015.92$0
Dec 199451398015.03$7,710
Nov 19940015.90$0
Oct 199428015.58$436
Sep 199420015.29$306
Aug 199456016.13$903
Jul 1994119017.56$2,090
Jun 1994222017.09$3,794
May 199450426415.88$8,004
Apr 19941,5492,09314.14$21,903
Mar 19942742,32812.46$3,414
Feb 19942801,89912.50$3,500
Jan 19942101,37712.66$2,659
Dec 19932241,47512.33$2,762
Nov 19931601,41914.49$2,318
Oct 19931941,34715.85$3,075
Sep 19931952,03315.03$2,931
Aug 19932012515.66$3,148
Jul 19931941,76915.46$2,999
Jun 199321518416.79$3,610
May 19932412,33117.68$4,261
Apr 19932572,79418.05$4,639
Mar 19932032,57618.14$3,682
Feb 19932092,08117.90$3,741
Jan 199318232316.93$3,081

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.

Dec 1994 — as filed, then multipliedworked
Oil                  513 bbl  × $ 15.03 =     $7,710
Casinghead gas       980 Mcf  ×  no price            —

────────────────────────────────────────────────────
Month total                                   $7,710

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. 02/O/4252 is the state's own key, not one this site invented.