BIG MINERAL CREEK (UV SAND) UNIT

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

Oil lease lease 28675District 09Field 07988810OilCasinghead gasSaveExport
Value, all time
$1.5 M
Nov 1993 – Mar 2008
Value, last 12 filed months
$0
at the published price for each month
Months reported
173
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 24 wells, and the rule below applies to all of them.

Discovered
1993-09-20
as the register files it
Field class
Oil and gas
the register's own label
Between wells
933 ft
minimum
From a lease line
330 ft
minimum

A drilling unit in this field needs at least 40 acres. The field rule took effect on 1993-09-21.

The Commission's schedule remark for this field reads: TO 6691'.

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
OilDisposition71,205 bbl$1,144,614
Casinghead gasProduction572,895 Mcf$312,680
Total$1,457,294

443,444 Mcf of this lease's gas, across 37 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 (20)

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 33.7356, -96.7839. A lease has no coordinate of its own — that point is the mean of its wells, and they span 2.2 miles.

33.73372, -96.78509 · 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%
20 of 20 wells
With a plug date
15.0%
3 of 20 wells
Median depth
7,275 ft
18 wells filed one
Completion to plug
44.3 years
median over 1 well

What the state filed about each well

On the RRC proration schedule
20100.0%
A plug date is filed
315.0%
BothOn the schedule and plugged. Neither fact cancels the other.
315.0%
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

Total depth in feet, 18 of 20 wells. Median 7,275 ft, with the middle half between 7,088 and 7,568 ft; the shallowest is 6,539 ft and the deepest 9,000 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, 14 of 20 wells, Nov 1975 – Apr 2026. This is the LAST completion filed on each wellbore, not the first — a well recompleted in 2019 counts once, in the 2010s.

Completions filed
Nov 1975 – Apr 2026
14 of 20 wells; 6 filed none
Plug dates filed
Jun 2023 – Nov 2024
3 of 20 wells; 17 filed none

Last completion to plug: a median of 44.3 years across the 1 well that filed both dates, with the middle half between 44.3 years and 44.3 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

20 wells

42-18101680512Yes
42-18101688517 W7,586 ftNov 2024Yes
42-18101842507Yes
42-181018595107,324 ftJun 2023Yes
42-181018645057,251 ftYes
42-181018755186,539 ftYes
42-18100855501 W7,090 ftApr 2026Yes
42-181016795197,050 ftDec 2023Yes
42-18101696511W7,339 ftDec 2021Yes
42-181016925148,000 ftMay 2018Yes
42-181008545027,014 ftApr 2018Yes
42-181016865139,000 ftApr 2018Yes
42-181018535098,080 ftJan 2018Yes
42-18101232506W6,947 ftMay 2011Yes
42-18101873504 W7,750 ftMar 1994Yes
42-181016875157,298 ftFeb 1994Yes
42-181008485037,203 ftJul 1984Yes
42-181018275087,087 ftNov 1980Yes
42-18101691516 W7,215 ftAug 1980Nov 2024Yes
42-181008585007,513 ftNov 1975Yes

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 (173)

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

173 months

Mar 200800101.909.66$0
Feb 20080092.538.77$0
Jan 20080090.388.21$0
Dec 20070088.337.30$0
Nov 20070091.677.29$0
Oct 20070082.856.92$0
Sep 20070075.846.24$0
Aug 20070069.066.39$0
Jul 20070070.906.39$0
Jun 20070062.007.55$0
May 20070058.747.85$0
Apr 20070059.617.81$0
Mar 20070056.927.30$0
Feb 20070055.108.22$0
Jan 20070050.306.73$0
Dec 20060056.656.92$0
Nov 20060054.207.62$0
Oct 20060054.906.01$0
Sep 20060060.085.04$0
Aug 20060068.717.34$0
Jul 20060069.376.34$0
Jun 20060066.286.38$0
May 20060066.016.42$0
Apr 20060064.397.36$0
Mar 20060056.707.08$0
Feb 20060057.597.75$0
Jan 20060060.598.93$0
Dec 20050054.9413.42$0
Nov 20050054.6910.59$0
Oct 20050058.3413.80$0
Sep 20050061.4512.08$0
Aug 20050061.519.80$0
Jul 20050055.697.84$0
Jun 20050052.337.38$0
May 20050045.226.65$0
Apr 20050049.207.36$0
Mar 20050050.377.15$0
Feb 20050045.226.31$0
Jan 20050043.166.32$0
Dec 20040039.866.75$0
Nov 20040045.286.33$0
Oct 20040049.706.52$0
Sep 20040043.245.28$0
Aug 20040042.375.55$0
Jul 20040038.286.08$0
Jun 20040036.106.43$0
May 20040037.486.49$0
Apr 20040034.475.86$0
Mar 20040034.365.53$0
Feb 20040032.455.51$0
Jan 20040032.036.30$0
Dec 20030030.266.30$0
Nov 20030028.804.60$0
Oct 20030028.174.76$0
Sep 20030026.314.75$0
Aug 20030029.765.13$0
Jul 20030029.415.17$0
Jun 20030028.565.98$0
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 20010016.932.36$0
Nov 20010018.072.41$0
Oct 20010019.782.53$0
Sep 20010024.262.25$0
Aug 20010024.873.05$0
Jul 20010023.933.20$0
Jun 20010024.563.82$0
May 20010025.524.31$0
Apr 20010024.685.34$0
Mar 20010024.545.38$0
Feb 20010027.755.77$0
Jan 20010027.478.40$0
Dec 20000026.889.12$0
Nov 20000032.215.66$0
Oct 20000031.235.15$0
Sep 20000031.875.19$0
Aug 20000029.644.54$0
Jul 20000028.534.09$0
Jun 20000029.304.40$0
May 20000027.263.68$0
Apr 20000024.513.12$0
Mar 20000028.422.86$0
Feb 20000027.622.73$0
Jan 20000025.272.48$0
Dec 19990024.282.42$0
Nov 19990023.192.43$0
Oct 19990020.982.80$0
Sep 19990021.752.62$0
Aug 19990019.262.88$0
Jul 19990017.892.37$0
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 1998009.201.77$0
Nov 19982,3076,92410.892.19$40,257
Oct 19982,2395,86612.421.97$39,360
Sep 19981,9155,74312.592.08$36,070
Aug 19982,1044,84111.301.91$33,009
Jul 19981,9431711.742.24$22,849
Jun 19981,8252,14611.242.24$25,314
May 19982,1271,22212.622.21$29,539
Apr 19981,4541,38013.042.51$22,418
Mar 19981,2535,01112.802.31$27,611
Feb 19981,2636,91113.952.30$33,508
Jan 19981,6185,66314.702.15$35,987
Dec 19971,4225,30216.322.41$35,991
Nov 19971,6007,21418.193.09$51,383
Oct 19971,4305,67819.253.15$45,412
Sep 19975265,78417.742.95$26,422
Aug 19971,3516,66617.862.55$41,159
Jul 19971,5767,36717.582.25$44,259
Jun 19971,1798,32417.242.26$39,115
May 19971,0676,48318.972.31$35,207
Apr 19971,1937,66817.882.08$37,302
Mar 19971,0647,44218.951.94$34,594
Feb 19971,0137,16620.492.21$36,564
Jan 19971,4288,63323.483.54$64,088
Dec 19968979,42623.32$20,918
Nov 19961,06610,51221.97$23,420
Oct 19961,20911,07523.31$28,182
Sep 199653411,30822.22$11,865
Aug 199698012,19520.26$19,855
Jul 19961,1119,31719.55$21,720
Jun 19968698,63018.73$16,276
May 19961,4709,03919.43$28,562
Apr 19961,1759,19221.51$25,274
Mar 19961,2789,99519.38$24,768
Feb 19961,024016.98$17,388
Jan 19961,8249,69817.07$31,136
Dec 19951,2989,26817.19$22,313
Nov 19958288,11916.00$13,248
Oct 19951,1106,71115.43$17,127
Sep 19956926,86216.18$11,197
Aug 19959517,79015.92$15,140
Jul 19957848,91215.24$11,948
Jun 19953496,46616.41$5,727
May 19955996,52117.56$10,518
Apr 19955228,68017.73$9,255
Mar 19956979,40616.44$11,459
Feb 199571217,01016.58$11,805
Jan 199579313,51715.92$12,625
Dec 199496113,92215.03$14,444
Nov 199453912,54915.90$8,570
Oct 199495815,17815.58$14,926
Sep 199470114,79815.29$10,718
Aug 199490915,79316.13$14,662
Jul 199452813,29117.56$9,272
Jun 199493414,32717.09$15,962
May 19941,16015,08015.88$18,421
Apr 19941,06316,33414.14$15,031
Mar 19941,18616,41812.46$14,778
Feb 199486717,14712.50$10,838
Jan 199474118,65212.66$9,381
Dec 19931,00020,48812.33$12,330
Nov 19931,98919,81814.49$28,821

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                2,307 bbl  × $ 10.89 =    $25,123
Casinghead gas     6,924 Mcf  × $  2.19 =    $15,134

────────────────────────────────────────────────────
Month total                                  $40,257

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/28675 is the state's own key, not one this site invented.