BIG MINERAL CREEK/STRAWNII/UNIT

Operated by VENOCO, INC. (P-5 884509) in the BIG MINERAL CREEK (STRAWN II) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 15794District 09Field 07988630NGPA filingOilCasinghead gasSaveExport
Value, all time
$339 k
Jan 1993 – Jan 1999
Value, last 12 filed months
$17 k
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 2 leases and 21 wells, and the rule below applies to all of them.

Discovered
1962-11-01
as the register files it
Field class
Oil
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: DOC. 09-0217503 (FLD CONSLD) TO BIG MINERAL CREEK (CONSOLIDATED)

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
OilDisposition20,349 bbl$335,047
Casinghead gasProduction16,706 Mcf$3,996
Total$339,043

15,278 Mcf of this lease's gas, across 47 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 (19)

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 33.7391, -96.7872. A lease has no coordinate of its own — that point is the mean of its wells, and they span 1.1 miles. 3 wells have no surveyed location and are left out of it.

33.73855, -96.78724 · centre of 16 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%
19 of 19 wells
With a plug date
42.1%
8 of 19 wells
Median depth
3,695 ft
16 wells filed one
Completion to plug
39.4 years
median over 4 wells

What the state filed about each well

On the RRC proration schedule
19100.0%
A plug date is filed
842.1%
BothOn the schedule and plugged. Neither fact cancels the other.
842.1%
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, 16 of 19 wells. Median 3,695 ft, with the middle half between 3,670 and 3,701 ft; the shallowest is 3,629 ft and the deepest 7,896 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, 11 of 19 wells, Dec 1952 – Apr 2021. This is the LAST completion filed on each wellbore, not the first — a well recompleted in 2019 counts once, in the 2010s.

Completions filed
Dec 1952 – Apr 2021
11 of 19 wells; 8 filed none
Plug dates filed
Mar 1993 – Oct 2024
8 of 19 wells; 11 filed none

Last completion to plug: a median of 39.4 years across the 4 wells that filed both dates, with the middle half between 28.3 years and 42.1 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

19 wells

42-181006251073,685 ftMay 2013Yes
42-18100658110W3,629 ftYes
42-181012291013,702 ftMar 1993Yes
42-181018111133,670 ftFeb 2019Yes
42-18101825114W3,651 ftOct 2024Yes
42-18180960102Yes
42-18180964106Yes
42-18180972111Yes
42-181012271053,702 ftApr 2021Yes
42-18101839109W3,651 ftApr 2020Nov 2022Yes
42-18101869119 W7,896 ftOct 2015Yes
42-18130671121 U6,200 ftJun 2003Yes
42-18101824116W3,680 ftMar 1991Yes
42-181018211043,701 ftOct 1986Yes
42-18101814111 L3,697 ftAug 1986Jun 2023Yes
42-181018661003,695 ftJun 1981Yes
42-181018181083,670 ftDec 1980Jun 2023Yes
42-18101823106 L3,699 ftDec 1980Nov 2022Yes
42-181001801123,695 ftDec 1952Yes

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 1998164010.892.19$1,786
Oct 1998140012.421.97$1,739
Sep 1998176012.592.08$2,216
Aug 1998161011.301.91$1,819
Jul 199885011.742.24$998
Jun 1998152011.242.24$1,708
May 1998147012.622.21$1,855
Apr 1998164013.042.51$2,139
Mar 19980012.802.31$0
Feb 1998179013.952.30$2,497
Jan 19980014.702.15$0
Dec 19970016.322.41$0
Nov 199718021718.193.09$3,944
Oct 199713726919.253.15$3,485
Sep 199712824017.742.95$2,980
Aug 199719123917.862.55$4,022
Jul 199723813517.582.25$4,487
Jun 19971694017.242.26$3,004
May 19972197918.972.31$4,337
Apr 19972756117.882.08$5,044
Mar 1997783718.951.94$1,550
Feb 1997211720.492.21$4,339
Jan 199714710423.483.54$3,820
Dec 19962588623.32$6,017
Nov 19963275721.97$7,184
Oct 199614985823.31$3,473
Sep 199618698722.22$4,133
Aug 19962151,14920.26$4,356
Jul 19962291,15119.55$4,477
Jun 19961621,15818.73$3,034
May 19962741,10319.43$5,324
Apr 199624294421.51$5,205
Mar 199637296019.38$7,209
Feb 1996236016.98$4,007
Jan 199637999117.07$6,470
Dec 19952571,05017.19$4,418
Nov 199536598516.00$5,840
Oct 199541886215.43$6,450
Sep 199522848816.18$3,689
Aug 199502315.92$0
Jul 1995160615.24$2,438
Jun 19952271016.41$3,725
May 1995303717.56$5,321
Apr 1995362417.73$6,418
Mar 19952843916.44$4,669
Feb 19953192416.58$5,289
Jan 19953063715.92$4,872
Dec 1994359115.03$5,396
Nov 19943112915.90$4,945
Oct 19943363915.58$5,235
Sep 19943295315.29$5,030
Aug 1994457816.13$7,371
Jul 19943172517.56$5,567
Jun 19943613117.09$6,169
May 19944672315.88$7,416
Apr 199444313014.14$6,264
Mar 199454523012.46$6,791
Feb 19944035812.50$5,038
Jan 19945815312.66$7,355
Dec 19934582712.33$5,647
Nov 19936595514.49$9,549
Oct 199368211015.85$10,810
Sep 199342011215.03$6,313
Aug 199357912115.66$9,067
Jul 199319214315.46$2,968
Jun 199328910416.79$4,852
May 199348327017.68$8,539
Apr 199348437018.05$8,736
Mar 199356014318.14$10,158
Feb 19935338417.90$9,541
Jan 19935028016.93$8,499

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.

Nov 1998 — as filed, then multipliedworked
Oil                  164 bbl  × $ 10.89 =     $1,786
Casinghead gas         0 Mcf  × $  2.19 =         $0

────────────────────────────────────────────────────
Month total                                   $1,786

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. 09/O/15794 is the state's own key, not one this site invented.