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TUMBLER STATE A

Operated by U.S. ENERGY DEVELOPMENT CORP (P-5 875462) in the WOLFBONE (TREND AREA) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 52982District 08Field 98359800Hydrogen sulphide fieldOilCasinghead gasSaveExport
Value, all time
$29.3 M
Aug 2019 – May 2026
Value, last 12 filed months
$1.4 M
at the published price for each month
Months reported
82
no gaps in the span
Streams
2
oil, casinghead gas

The WOLFBONE (TREND AREA) 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 1,266 leases and 2,377 wells, and the rule below applies to all of them.

Discovered
2010-11-30
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 40 acres. The field rule took effect on 2015-04-08.

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.

The Commission's schedule remark for this field reads: “DESIGNATED AS UFT FIELD PER DOCKET 01-0299858”

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
OilDisposition407,612 bbl$24,295,857
Casinghead gasProduction1,549,332 Mcf$5,032,562
Total$29,328,419

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 31.3547, -103.3995. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.0 miles.

31.35469, -103.39952 · 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 1 wells
With a plug date
0.0%
0 of 1 wells
Median depth
10,497 ft
1 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.
1100.0%

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 10,497 ft.

Completions filed
Aug 2019
1 of 1 wells

1 well

42-389371921853H10,497 ftAug 2019——

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 (82)

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

82 months

May 20269136,408106.413.05$116,670
Apr 20261,0036,05698.932.87$116,606
Mar 20261,1167,05489.753.15$122,377
Feb 20261,1107,70763.503.75$99,389
Jan 20261,1656,85459.138.00$123,704
Dec 20251,3268,77256.664.41$113,845
Nov 20251,2669,36558.593.93$110,946
Oct 20251,2479,89759.383.30$106,755
Sep 20251,3379,67862.743.08$113,662
Aug 20251,1857,38263.933.01$98,012
Jul 20251,2408,15866.743.32$109,803
Jun 20251,5289,81266.483.13$132,280
May 20251,56610,69860.553.23$129,401
Apr 20252,02312,94762.363.54$172,027
Mar 20251,68312,93567.704.27$169,150
Feb 20251,02111,68270.884.34$123,078
Jan 20251,19111,59474.324.28$138,122
Dec 20248339,23468.993.12$86,291
Nov 20241,13013,64969.052.20$108,033
Oct 20241,33416,89071.372.28$133,740
Sep 20241,02413,07269.612.36$102,188
Aug 20241,12813,25475.632.06$112,662
Jul 20241,24914,57079.932.15$131,108
Jun 20241,17415,04078.082.63$131,281
May 202474610,29878.812.20$81,432
Apr 202480610,90884.451.66$86,165
Mar 20241,07010,89880.301.55$102,760
Feb 20241,07013,48376.091.78$105,465
Jan 20241,29216,25673.023.30$147,949
Dec 202385711,09371.262.61$90,031
Nov 202387811,87777.892.81$101,733
Oct 20231,13014,54785.443.09$141,458
Sep 20231,21514,24089.042.74$147,131
Aug 20231,16414,02880.522.67$131,220
Jul 20231,17312,86874.852.64$121,794
Jun 20231,22013,44268.962.26$114,490
May 20232,52815,68170.622.23$213,455
Apr 20233,16015,27378.122.24$281,037
Mar 20233,51317,17372.852.39$297,020
Feb 20233,71117,03175.112.47$320,726
Jan 20233,50415,86876.533.39$321,917
Dec 20223,50014,83176.415.73$352,403
Nov 20223,79814,44185.005.65$404,367
Oct 20223,54513,90287.185.86$390,571
Sep 20222,72512,27084.888.16$331,466
Aug 20223,49116,08094.529.13$476,734
Jul 20223,49015,753101.587.54$473,325
Jun 20223,80016,251115.097.98$566,979
May 20224,38618,151109.378.43$632,765
Apr 20224,12617,550104.226.84$550,012
Mar 20224,61318,778108.885.08$597,588
Feb 20224,28615,80091.054.86$467,010
Jan 20222,8669,67881.844.54$278,469
Dec 20214,22116,74271.323.90$366,321
Nov 20214,71820,57277.435.24$473,047
Oct 20215,11521,66079.795.71$531,888
Sep 20215,05320,95669.865.35$465,136
Aug 20215,25921,09666.024.22$436,237
Jul 20215,37921,35570.783.98$465,763
Jun 20215,46920,61369.493.38$449,726
May 20213,0407,51563.483.02$215,657
Apr 20213,8198,67060.362.76$254,430
Mar 20215,31312,55561.302.72$359,798
Feb 20212,4146,63057.805.55$176,312
Jan 20214,25613,35150.412.81$252,065
Dec 20204,67416,79744.642.68$253,587
Nov 20204,74519,86538.772.71$237,730
Oct 20205,60821,39236.972.48$260,346
Sep 20205,54019,13437.091.99$243,575
Aug 20206,21123,25339.982.39$303,777
Jul 20206,67522,94338.371.83$297,993
Jun 20207,04523,88934.901.69$286,250
May 20208,25628,04516.921.81$190,586
Apr 20209,21328,65514.751.80$187,596
Mar 202011,88237,28330.341.86$429,706
Feb 202013,27739,88249.881.98$741,250
Jan 202016,55347,07257.252.09$1,046,263
Dec 201920,01651,85259.012.30$1,300,630
Nov 201924,10558,21055.302.75$1,493,125
Oct 201936,78379,95053.472.42$2,160,149
Sep 201950,909119,93955.052.66$3,121,252
Aug 201918,60948,29953.112.30$1,099,622

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                  913 bbl  × $106.41 =    $97,152
Casinghead gas     6,408 Mcf  × $  3.05 =    $19,518

────────────────────────────────────────────────────
Month total                                 $116,670

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/52982 is the state's own key, not one this site invented.