CAGE A

Operated by ENDEAVOR NATURAL GAS, LP (P-5 251729) in the HUGH FITZSIMMONS (SAN MIGUEL) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 21159District 01Field 43305666OilCasinghead gasSaveExport
Value, all time
$25.1 M
Nov 2023 – May 2026
Value, last 12 filed months
$10.3 M
at the published price for each month
Months reported
31
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 93 leases and 855 wells, and the rule below applies to all of them.

Discovered
1959-03-14
as the register files it
Field class
Oil and gas
the register's own label
Between wells
1,200 ft
minimum
From a lease line
330 ft
minimum

A drilling unit in this field needs at least 20 acres. The field rule took effect on 2024-12-17.

The Commission's schedule remark for this field reads: BETWEEN WELL EXCEPTION FOR VERTICAL WELLS, UFT ALLOWABLE,

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
OilDisposition307,228 bbl$21,989,470
Casinghead gasProduction1,029,607 Mcf$3,129,718
Total$25,119,187

Wells on this lease (5)

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 28.2345, -100.1683. A lease has no coordinate of its own — that point is the mean of its wells, and they span 2.9 miles.

28.22984, -100.17003 · 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
0.0%
0 of 5 wells
With a plug date
0.0%
0 of 5 wells
Median depth
3,354 ft
5 wells filed one
Completion to plug
no well filed both dates

What the state filed about each well

On the RRC proration schedule
00.0%
A plug date is filed
00.0%
BothOn the schedule and plugged. Neither fact cancels the other.
00.0%
NeitherNo plug date, and not on the schedule.
5100.0%

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

Between 3,307 and 3,392 ft, median 3,354 ft, over the 5 wells that filed a depth.

Completions filed
Nov 2023 – May 2025
5 of 5 wells

5 wells

42-323336641021H3,367 ftMay 2025
42-323336651022H3,307 ftMay 2025
42-323336141101H3,392 ftSep 2024
42-323336121102H3,354 ftNov 2023
42-323336131104H3,324 ftNov 2023

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 (31)

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

31 months

May 20266,34822,734106.413.05$744,735
Apr 20267,68229,18898.932.87$843,742
Mar 20268,72331,23789.753.15$881,268
Feb 20267,86625,63163.503.75$595,615
Jan 202610,11029,53959.138.00$834,055
Dec 20258,60126,85956.664.41$605,871
Nov 202510,48533,04758.593.93$744,073
Oct 202510,79731,53759.383.30$745,351
Sep 202511,59735,79862.743.08$837,743
Aug 202513,70035,41163.933.01$982,597
Jul 202515,77942,64666.743.32$1,194,470
Jun 202517,47936,56766.483.13$1,276,412
May 20255,20818,05960.553.23$373,717
Apr 20255,35822,20662.363.54$412,803
Mar 202510,84023,92567.704.27$835,988
Feb 20255,82826,35670.884.34$527,496
Jan 20257,00029,75374.324.28$647,544
Dec 20247,53333,78868.993.12$625,167
Nov 20248,19831,27769.052.20$634,833
Oct 20249,09233,32271.372.28$724,917
Sep 20249,79631,94269.612.36$757,422
Aug 20245,86230,57275.632.06$506,432
Jul 20247,15734,08679.932.15$645,228
Jun 202410,20937,83978.082.63$896,786
May 20244,28816,86478.812.20$375,012
Apr 20249,59540,03084.451.66$876,716
Mar 202410,82248,02680.301.55$943,213
Feb 202412,19449,66876.091.78$1,016,431
Jan 202415,38352,67873.023.30$1,296,981
Dec 202319,05559,77271.262.61$1,513,907
Nov 202314,64329,25077.892.81$1,222,664

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.

May 2026 — as filed, then multipliedworked
Oil                6,348 bbl  × $106.41 =   $675,491
Casinghead gas    22,734 Mcf  × $  3.05 =    $69,244

────────────────────────────────────────────────────
Month total                                 $744,735

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/21159 is the state's own key, not one this site invented.