HOWELL-NCNB UNIT

Operated by WILLIAMS, CLAYTON ENERGY, INC. (P-5 924624) in the PEARSALL (AUSTIN CHALK) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 12790District 01Field 69981125OilCasinghead gasSaveExport
Value, all time
$496 k
Jan 1993 – Oct 1998
Value, last 12 filed months
$2 k
at the published price for each month
Months reported
70
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 1,992 leases and 3,388 wells, and the rule below applies to all of them.

Discovered
1936-12-28
as the register files it
Field class
Oil and gas
the register's own label
Between wells
0 ft
minimum
From a lease line
330 ft
minimum

A drilling unit in this field needs at least 80 acres. The field rule took effect on 2025-06-17.

The Commission's schedule remark for this field reads: LEASE PLAT. PRORATION PLAT IS NOT REQUIRED.

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
OilDisposition28,661 bbl$490,382
Casinghead gasProduction33,925 Mcf$5,549
Total$495,931

31,487 Mcf of this lease's gas, across 45 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 (1)

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 28.6796, -99.2761. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.0 miles.

28.67961, -99.27606 · 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%
1 of 1 wells
With a plug date
100.0%
1 of 1 wells
Median depth
10,740 ft
1 wells filed one
Completion to plug
7.9 years
median over 1 well

What the state filed about each well

On the RRC proration schedule
1100.0%
A plug date is filed
1100.0%
BothOn the schedule and plugged. Neither fact cancels the other.
1100.0%
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

The one well that filed a depth was drilled to 10,740 ft.

Completions filed
Aug 1990
1 of 1 wells
Plug dates filed
Jul 1998
1 of 1 wells

Last completion to plug: a median of 7.9 years across the 1 well that filed both dates, with the middle half between 7.9 years and 7.9 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

1 well

42-16332749110,740 ftAug 1990Jul 1998Yes

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 (70)

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

70 months

Oct 19980012.421.97$0
Sep 19980012.592.08$0
Aug 19980011.301.91$0
Jul 199843011.742.24$505
Jun 19980011.242.24$0
May 19980012.622.21$0
Apr 19980013.042.51$0
Mar 199874012.802.31$947
Feb 19986013.952.30$84
Jan 19980014.702.15$0
Dec 19972016.322.41$33
Nov 1997104118.193.09$309
Oct 19971211719.253.15$600
Sep 199715815117.742.95$3,249
Aug 19971325117.862.55$873
Jul 199718821917.582.25$3,797
Jun 199737631417.242.26$7,191
May 1997415018.972.31$7,873
Apr 199757753417.882.08$11,429
Mar 199753850718.951.94$11,178
Feb 199767530420.492.21$14,501
Jan 1997366023.483.54$8,594
Dec 199653951723.32$12,569
Nov 199634743121.97$7,624
Oct 199637131723.31$8,648
Sep 199636553322.22$8,110
Aug 199634949720.26$7,071
Jul 199650845719.55$9,931
Jun 199637740418.73$7,061
May 199652536419.43$10,201
Apr 199635255621.51$7,572
Mar 199654951519.38$10,640
Feb 199635644516.98$6,045
Jan 199635138417.07$5,992
Dec 199552055117.19$8,939
Nov 199534450316.00$5,504
Oct 19955181,51315.43$7,993
Sep 199552764216.18$8,527
Aug 199535760415.92$5,683
Jul 199532510015.24$4,953
Jun 1995181516.41$2,970
May 199554018017.56$9,482
Apr 199534154117.73$6,046
Mar 199552270416.44$8,582
Feb 199532167916.58$5,322
Jan 1995520015.92$8,278
Dec 199451559115.03$7,740
Nov 1994491015.90$7,807
Oct 1994344015.58$5,360
Sep 199451860915.29$7,920
Aug 199451871616.13$8,355
Jul 199452961017.56$9,289
Jun 199452692717.09$8,989
May 199452674215.88$8,353
Apr 199451370414.14$7,254
Mar 19943221,03512.46$4,012
Feb 19947001,57112.50$8,750
Jan 19941,0341,05912.66$13,090
Dec 199355939312.33$6,892
Nov 19936891,07914.49$9,984
Oct 199369287115.85$10,968
Sep 199334749515.03$5,215
Aug 199399275915.66$15,535
Jul 1993312515.46$46
Jun 199317037516.79$2,854
May 19931,0221,09417.68$18,069
Apr 19934981,09418.05$8,989
Mar 19931,0782,30918.14$19,555
Feb 19931,7451,88817.90$31,236
Jan 199387299916.93$14,763

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.

Jul 1998 — as filed, then multipliedworked
Oil                   43 bbl  × $ 11.74 =       $505
Casinghead gas         0 Mcf  × $  2.24 =         $0

────────────────────────────────────────────────────
Month total                                     $505

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. 01/O/12790 is the state's own key, not one this site invented.