COWDEN, J. F.

Operated by TEXACO E & P INC. (P-5 844118) in the ANDECTOR (ELLENBURGER) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 231District 08Field 02596200Hydrogen sulphide fieldOilCasinghead gasSaveExport
Value, all time
$854 k
Jan 1993 – May 2002
Value, last 12 filed months
$0
at the published price for each month
Months reported
113
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 25 leases and 166 wells, and the rule below applies to all of them.

Discovered
1946-09-19
as the register files it
Field class
Oil
the register's own label
Between wells
1,300 ft
minimum
From a lease line
650 ft
minimum

A drilling unit in this field needs at least 40 acres.

The register flags this field for hydrogen sulphide. That is a poisonous gas that occurs naturally in some formations. The flag is a property of the field as the Commission records it. It is not a measurement taken at this lease, and it is not a statement that gas is escaping anywhere.

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
OilDisposition37,272 bbl$688,232
Casinghead gasProduction157,562 Mcf$165,745
Total$853,977

90,811 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 (14)

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 32.0568, -102.6938. A lease has no coordinate of its own — that point is the mean of its wells, and they span 1.9 miles.

32.05740, -102.69156 · 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%
14 of 14 wells
With a plug date
21.4%
3 of 14 wells
Median depth
8,597 ft
13 wells filed one
Completion to plug
25.6 years
median over 3 wells

What the state filed about each well

On the RRC proration schedule
14100.0%
A plug date is filed
321.4%
BothOn the schedule and plugged. Neither fact cancels the other.
321.4%
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, 13 of 14 wells. Median 8,597 ft, with the middle half between 8,592 and 8,602 ft; the shallowest is 8,462 ft and the deepest 9,170 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, 12 of 14 wells, Jun 1979 – Jan 2002. This is the LAST completion filed on each wellbore, not the first — a well recompleted in 2019 counts once, in the 2010s.

Completions filed
Jun 1979 – Jan 2002
12 of 14 wells; 2 filed none
Plug dates filed
Apr 1994 – May 2025
3 of 14 wells; 11 filed none

Last completion to plug: a median of 25.6 years across the 3 wells that filed both dates, with the middle half between 16.7 years and 28.4 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

14 wells

42-135026553Yes
42-13502665138,462 ftYes
42-13508457158,602 ftJan 2002Yes
42-13502666148,606 ftDec 2001Yes
42-1350266088,583 ftAug 2001Yes
42-1350265978,675 ftSep 2000Yes
42-135026542 L8,592 ftApr 1998Yes
42-135026619 L8,592 ftMay 1996Yes
42-1350265758,597 ftFeb 1996Sep 2021Yes
42-13502671209,170 ftSep 1995Yes
42-1350265648,592 ftFeb 1994May 2025Yes
42-1350265868,581 ftNov 1991Yes
42-13502662108,602 ftJul 1986Apr 1994Yes
42-1350266311 L8,600 ftJun 1979Yes

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 (113)

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

113 months

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 200051032.215.66$1,643
Oct 2000174431.235.15$5,455
Sep 20004281031.875.19$13,692
Aug 2000457929.644.54$13,586
Jul 20004351028.534.09$12,451
Jun 20004341029.304.40$12,760
May 2000321627.263.68$8,773
Apr 2000335824.513.12$8,236
Mar 2000436828.422.86$12,414
Feb 2000345827.622.73$9,551
Jan 2000362725.272.48$9,165
Dec 1999451124.282.42$10,953
Nov 1999382123.192.43$8,861
Oct 1999405520.982.80$8,511
Sep 19993388921.752.62$7,585
Aug 199952814519.262.88$10,586
Jul 199952616417.892.37$9,799
Jun 199965416215.942.36$10,807
May 199947817915.792.32$7,963
Apr 19994286015.102.21$6,595
Mar 19991014912.471.84$1,350
Feb 1999259599.981.82$2,692
Jan 19994684410.381.90$4,941
Dec 1998674509.201.77$6,289
Nov 19985036110.892.19$5,611
Oct 19985174412.421.97$6,508
Sep 19984516012.592.08$5,803
Aug 19985775811.301.91$6,631
Jul 19986496411.742.24$7,762
Jun 19986356011.242.24$7,272
May 19984563412.622.21$5,830
Apr 19986543013.042.51$8,603
Mar 199856517912.802.31$7,645
Feb 19985993,13913.952.30$15,573
Jan 19987423,78914.702.15$19,072
Dec 19975823,55316.322.41$18,065
Nov 19977405,24818.193.09$29,668
Oct 19977584,58319.253.15$29,027
Sep 19976101,68517.742.95$15,800
Aug 19976165,74317.862.55$25,674
Jul 19978376,09217.582.25$28,403
Jun 19977065,77817.242.26$25,214
May 19971,1665,72618.972.31$35,337
Apr 19978735,18817.882.08$26,415
Mar 19979605,10218.951.94$28,085
Feb 19978014,90820.492.21$27,239
Jan 19978874,53923.483.54$36,893
Dec 19966311,41723.32$14,715
Nov 19967292,88421.97$16,016
Oct 19961,0483,27723.31$24,429
Sep 19965633,63222.22$12,510
Aug 19963012,68520.26$6,098
Jul 19964222,70219.55$8,250
Jun 19967243,59018.73$13,561
May 19961,2786,42519.43$24,832
Apr 19966955,77221.51$14,949
Mar 19965765,59419.38$11,163
Feb 19966385,35316.98$10,833
Jan 19965865,66717.07$10,003
Dec 199565111,42217.19$11,191
Nov 19959329,23816.00$14,912
Oct 19958716,06115.43$13,440
Sep 19955955,66416.18$9,627
Aug 19954815,93215.92$7,658
Jul 19951973,49615.24$3,002
Jun 19950016.41$0
May 19950017.56$0
Apr 19950017.73$0
Mar 19950016.44$0
Feb 19950016.58$0
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 19930015.66$0
Jul 19930015.46$0
Jun 19930016.79$0
May 19930017.68$0
Apr 19930018.05$0
Mar 19930018.14$0
Feb 19930017.90$0
Jan 19930016.93$0

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 2000 — as filed, then multipliedworked
Oil                   51 bbl  × $ 32.21 =     $1,643
Casinghead gas         0 Mcf  × $  5.66 =         $0

────────────────────────────────────────────────────
Month total                                   $1,643

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. 08/O/231 is the state's own key, not one this site invented.