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TUMBLER STATE B

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 53101District 08Field 98359800Hydrogen sulphide fieldOilCasinghead gasSaveExport
Value, all time
$16.4 M
Aug 2019 – May 2026
Value, last 12 filed months
$1.3 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
OilDisposition218,336 bbl$13,363,566
Casinghead gasProduction900,756 Mcf$3,079,777
Total$16,443,342

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 31.3530, -103.3999. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.0 miles.

31.35302, -103.39992 · 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
11,107 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 11,107 ft.

Completions filed
Aug 2019
1 of 1 wells

1 well

42-389371931873H11,107 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 20269744,325106.413.05$116,817
Apr 20267234,26998.932.87$83,777
Mar 20261,2146,24689.753.15$128,628
Feb 20261,2167,14263.503.75$104,001
Jan 20261,1606,78159.138.00$122,825
Dec 20251,0116,04456.664.41$83,958
Nov 20251,5306,48158.593.93$115,090
Oct 20251,4357,18159.383.30$108,942
Sep 20251,5897,02962.743.08$121,322
Aug 20251,6636,00063.933.01$124,404
Jul 20251,9007,90966.743.32$153,026
Jun 20259206,96366.483.13$82,947
May 20259468,57760.553.23$85,004
Apr 202581512,03162.363.54$93,451
Mar 20259748,59367.704.27$102,617
Feb 20251,6205,93870.884.34$140,602
Jan 20251,8876,09674.324.28$166,325
Dec 20241,2965,16768.993.12$105,539
Nov 20241,6758,03269.052.20$133,317
Oct 20241,9859,16571.372.28$162,578
Sep 20241,4626,89269.612.36$118,065
Aug 20241,6026,98475.632.06$135,572
Jul 20241,7897,59479.932.15$159,296
Jun 20241,7397,73778.082.63$156,160
May 20241,0875,18078.812.20$97,054
Apr 20241,1465,48784.451.66$105,884
Mar 20241,4247,02380.301.55$125,199
Feb 20241,3399,80176.091.78$119,366
Jan 20241,50711,76373.023.30$148,832
Dec 20239838,38571.262.61$91,939
Nov 20231,0059,09377.892.81$103,809
Oct 20231,28010,87785.443.09$142,944
Sep 20231,36610,61589.042.74$150,661
Aug 20231,30310,21380.522.67$132,216
Jul 20231,2209,77174.852.64$117,130
Jun 20231,17710,30068.962.26$104,428
May 20231,76711,76870.622.23$150,998
Apr 20231,96911,34178.122.24$179,197
Mar 20238444,95672.852.39$73,346
Feb 2023993275.112.47$7,515
Jan 20232,14310,97276.533.39$201,174
Dec 20222,20310,74376.415.73$229,879
Nov 20222,39810,46085.005.65$262,889
Oct 20222,2699,72387.185.86$254,825
Sep 20221,6528,52284.888.16$209,793
Aug 20221,88910,79994.529.13$277,112
Jul 20221,95210,930101.587.54$280,719
Jun 20222,05610,900115.097.98$323,577
May 20222,33311,993109.378.43$356,298
Apr 20222,31312,177104.226.84$324,322
Mar 20222,59013,030108.885.08$348,145
Feb 20222,32110,82191.054.86$263,905
Jan 20221,4966,43581.844.54$151,633
Dec 20212,23511,43271.323.90$203,975
Nov 20212,07012,27977.435.24$224,583
Oct 20212,08012,25879.795.71$236,004
Sep 20212,21912,01669.865.35$219,316
Aug 20212,51212,46166.024.22$218,435
Jul 20212,69212,66770.783.98$240,981
Jun 20212,82912,61269.493.38$239,224
May 20212,95113,61263.483.02$228,406
Apr 20212,92514,13960.362.76$215,554
Mar 20212,9919,97261.302.72$210,442
Feb 20212,0287,95957.805.55$161,375
Jan 20212,90014,09850.412.81$185,808
Dec 20203,14714,16644.642.68$178,383
Nov 20203,37114,98938.772.71$171,262
Oct 20203,59312,72236.972.48$164,364
Sep 20204,01916,44737.091.99$181,811
Aug 20204,06814,39439.982.39$196,970
Jul 20204,02412,74438.371.83$177,660
Jun 20204,44815,07734.901.69$180,720
May 20205,14816,97116.921.81$117,902
Apr 20205,34517,03714.751.80$109,580
Mar 20205,76617,25730.341.86$206,973
Feb 20205,90615,78849.881.98$325,862
Jan 20207,18918,43757.252.09$450,191
Dec 20197,16018,43559.012.30$464,992
Nov 20197,84619,54255.302.75$487,638
Oct 201911,90332,05353.472.42$713,975
Sep 201918,16443,15655.052.66$1,114,606
Aug 20196,55112,75053.112.30$377,304

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                  974 bbl  × $106.41 =   $103,643
Casinghead gas     4,325 Mcf  × $  3.05 =    $13,173

────────────────────────────────────────────────────
Month total                                 $116,817

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/53101 is the state's own key, not one this site invented.