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BIG MINERAL CREEK/STRAWN I/UNIT

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

Oil lease lease 20115District 09Field 07988540NGPA filingOilCasinghead gasSaveExport
Value, all time
$7.1 M
Jan 1993 – Jun 1999
Value, last 12 filed months
$238 k
at the published price for each month
Months reported
78
no gaps in the span
Streams
2
oil, casinghead gas

The BIG MINERAL CREEK (STRAWN) field

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 15 leases and 90 wells, and the rule below applies to all of them.

Discovered
1951-05-15
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
NGPA10none——

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
OilDisposition426,923 bbl$7,067,286
Casinghead gasProduction43,945 Mcf$21,857
Total$7,089,143

35,082 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 (51)

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 33.7359, -96.7858. A lease has no coordinate of its own — that point is the mean of its wells, and they span 1.8 miles.

33.73382, -96.78505 · 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%
51 of 51 wells
With a plug date
45.1%
23 of 51 wells
Median depth
3,702 ft
45 wells filed one
Completion to plug
36.6 years
median over 17 wells

What the state filed about each well

On the RRC proration schedule
51100.0%
A plug date is filed
2345.1%
BothOn the schedule and plugged. Neither fact cancels the other.
2345.1%
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, 45 of 51 wells. Median 3,702 ft, with the middle half between 3,675 and 6,950 ft; the shallowest is 3,500 ft and the deepest 10,337 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, 38 of 51 wells, Dec 1954 – Oct 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 1954 – Oct 2021
38 of 51 wells; 13 filed none
Plug dates filed
Feb 1996 – Nov 2024
23 of 51 wells; 28 filed none

Last completion to plug: a median of 36.6 years across the 17 wells that filed both dates, with the middle half between 3.0 years and 39.3 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

51 wells

42-181000754153,683 ft—Dec 2022Yes
42-18100625412 U3,685 ft—May 2013Yes
42-181006444113,700 ft—Nov 2022Yes
42-181006584163,629 ft——Yes
42-18101237426———Yes
42-18101684434———Yes
42-181017004333,500 ft—Nov 2022Yes
42-18101811420W3,670 ft—Feb 2019Yes
42-181018254213,651 ft—Oct 2024Yes
42-18101826424———Yes
42-18101835428———Yes
42-181018514415,350 ft——Yes
42-18102238422———Yes
42-18130730402W3,700 ftOct 2021Jun 2023Yes
42-18101227407 U3,702 ftApr 2021—Yes
42-18102056431W3,600 ftApr 2021Dec 2022Yes
42-181018394143,651 ftApr 2020Nov 2022Yes
42-18101235423W3,709 ftApr 2020Nov 2022Yes
42-18101849404W3,700 ftApr 2020—Yes
42-181018474063,686 ftNov 2019Nov 2022Yes
42-181018484093,675 ftNov 2019—Yes
42-181018714013,750 ftNov 2019Nov 2022Yes
42-18101692436 U8,000 ftMay 2018—Yes
42-18101689435W5,414 ftApr 2018—Yes
42-181018124547,099 ftDec 2014—Yes
42-18101834403W6,950 ftNov 2014—Yes
42-18101225452W7,995 ftDec 2013—Yes
42-18101687437W7,298 ftFeb 1994—Yes
42-181018194465,258 ftNov 1992—Yes
42-181301514515,300 ftOct 1992—Yes
42-18100629439W7,074 ftNov 1991—Yes
42-181018244273,680 ftMar 1991—Yes
42-18101832425W5,350 ftAug 1989—Yes
42-18101828447W7,417 ftFeb 1989Jun 2023Yes
42-181016984323,665 ftJan 1989—Yes
42-181018174457,100 ftJan 1989—Yes
42-18101840449W7,942 ftNov 1988Feb 1996Yes
42-18101226444—Jun 1988—Yes
42-18100166422R5,567 ftOct 1986May 2023Yes
42-18101821405 U3,701 ftOct 1986—Yes
42-18101822440W8,310 ftSep 1986Nov 2024Yes
42-181018374183,668 ftSep 1986—Yes
42-18101814417 U3,697 ftAug 1986Jun 2023Yes
42-18101682442W5,400 ftJul 1986Jun 2023Yes
42-181016954383,670 ftJul 1983Nov 2022Yes
42-181018614293,590 ftFeb 1982Nov 2024Yes
42-181018674006,965 ftJul 1981—Yes
42-18101240410W10,337 ftJan 1981—Yes
42-181018184133,670 ftDec 1980Jun 2023Yes
42-18101823408 U3,699 ftDec 1980Nov 2022Yes
42-181018504435,381 ftDec 1954Jun 2023Yes

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 (78)

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

78 months

Jun 19990015.942.36$0
May 19990015.792.32$0
Apr 19990015.102.21$0
Mar 19990012.471.84$0
Feb 1999009.981.82$0
Jan 19990010.381.90$0
Dec 199811209.201.77$1,030
Nov 19983,91216710.892.19$42,967
Oct 19984,39726712.421.97$55,137
Sep 19983,93226712.592.08$50,060
Aug 19984,76013311.301.91$54,042
Jul 19982,924011.742.24$34,328
Jun 19983,8539811.242.24$43,527
May 19984,12410512.622.21$52,277
Apr 19983,47313013.042.51$45,614
Mar 19983,34435712.802.31$43,628
Feb 19982,45730413.952.30$34,974
Jan 19982,65646014.702.15$40,034
Dec 19974,39055816.322.41$72,990
Nov 19974,71264118.193.09$87,691
Oct 19974,78170619.253.15$94,258
Sep 19974,84871217.742.95$88,107
Aug 19975,03857717.862.55$91,453
Jul 19975,36068617.582.25$95,770
Jun 19974,99095417.242.26$88,181
May 19975,21952518.972.31$100,216
Apr 19975,04534417.882.08$90,921
Mar 19975,09336518.951.94$97,220
Feb 19974,86729020.492.21$100,365
Jan 19974,94021723.483.54$116,759
Dec 19964,87320223.32—$113,638
Nov 19965,36834021.97—$117,935
Oct 19965,22740523.31—$121,841
Sep 19965,16958922.22—$114,855
Aug 19965,73651220.26—$116,211
Jul 19965,27028619.55—$103,029
Jun 19965,33831318.73—$99,981
May 19965,96933619.43—$115,978
Apr 19965,69426421.51—$122,478
Mar 19966,10622219.38—$118,334
Feb 19965,765016.98—$97,890
Jan 19965,96328717.07—$101,788
Dec 19956,40933217.19—$110,171
Nov 19956,41333616.00—$102,608
Oct 19956,54531915.43—$100,989
Sep 19956,68430916.18—$108,147
Aug 19956,75726415.92—$107,571
Jul 19956,49028415.24—$98,908
Jun 19954,22022116.41—$69,250
May 19954,78725417.56—$84,060
Apr 19956,78328817.73—$120,263
Mar 19957,49531316.44—$123,218
Feb 19956,28642616.58—$104,222
Jan 19957,09638915.92—$112,968
Dec 19947,04536215.03—$105,886
Nov 19947,08368715.90—$112,620
Oct 19947,4901,03915.58—$116,694
Sep 19947,48388415.29—$114,415
Aug 19947,54070016.13—$121,620
Jul 19947,70282317.56—$135,247
Jun 19946,92087517.09—$118,263
May 19947,64789215.88—$121,434
Apr 19948,1711,09414.14—$115,538
Mar 19948,45784712.46—$105,374
Feb 19947,95053812.50—$99,375
Jan 19948,07645912.66—$102,242
Dec 19937,88040712.33—$97,160
Nov 19937,7741,79214.49—$112,645
Oct 19938,2083,26015.85—$130,097
Sep 19938,0341,26215.03—$120,751
Aug 19938,5722,10915.66—$134,238
Jul 19938,2391,08015.46—$127,375
Jun 19937,22791616.79—$121,341
May 19935,6231,23317.68—$99,415
Apr 19937,7391,41418.05—$139,689
Mar 19937,9611,52318.14—$144,413
Feb 19937,4591,67717.90—$133,516
Jan 19938,9731,71816.93—$151,913

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 1998 — as filed, then multipliedworked
Oil                  112 bbl  × $  9.20 =     $1,030
Casinghead gas         0 Mcf  × $  1.77 =         $0

────────────────────────────────────────────────────
Month total                                   $1,030

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/20115 is the state's own key, not one this site invented.