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TUMBLER STATE E

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 53165District 08Field 98359800Hydrogen sulphide fieldOilCasinghead gasSaveExport
Value, all time
$11.8 M
Aug 2019 – May 2026
Value, last 12 filed months
$699 k
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
OilDisposition164,436 bbl$10,026,011
Casinghead gasProduction559,002 Mcf$1,760,460
Total$11,786,471

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 31.3539, -103.4024. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.0 miles.

31.35389, -103.40237 · 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
11,189 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 11,189 ft.

Completions filed
Aug 2019
1 of 1 wells

1 well

42-389372121874H11,189 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 20261,1382,559106.413.05$128,889
Apr 20261,0202,47898.932.87$108,020
Mar 20268192,14889.753.15$80,270
Feb 20266901,46363.503.75$49,302
Jan 202668976959.138.00$46,891
Dec 20251,1261,54956.664.41$70,635
Nov 20258621,15758.593.93$55,047
Oct 20259131,43459.383.30$58,953
Sep 20258993,03362.743.08$65,736
Aug 20254431,14763.933.01$31,779
Jul 20257066.743.32$467
Jun 202543066.483.13$2,859
May 20256521,87660.553.23$45,542
Apr 20259023,05762.363.54$67,080
Mar 20258542,80167.704.27$69,771
Feb 20251,0484,55070.884.34$94,033
Jan 20251,2656,11774.324.28$120,187
Dec 20241,1775,77668.993.12$99,230
Nov 20241,8545,05369.052.20$139,127
Oct 20241,1144,13371.372.28$88,935
Sep 20243431,27469.612.36$26,888
Aug 20247234,13975.632.06$63,222
Jul 20247375,68179.932.15$71,103
Jun 20244553,01178.082.63$43,457
May 20248576,28078.812.20$81,346
Apr 20249335,63884.451.66$88,146
Mar 20241,0015,89080.301.55$89,481
Feb 20249604,98076.091.78$81,929
Jan 20249874,92473.023.30$88,308
Dec 20231,0065,04871.262.61$84,866
Nov 20236913,33877.892.81$63,194
Oct 202318851485.443.09$17,650
Sep 20231,0905,10689.042.74$111,019
Aug 20231,0565,26280.522.67$99,094
Jul 20239573,94774.852.64$82,059
Jun 20238643,99968.962.26$68,613
May 20238513,65270.622.23$68,232
Apr 20231,0834,99478.122.24$95,779
Mar 20231,3155,69972.852.39$109,436
Feb 20231,5405,21675.112.47$128,530
Jan 20231,9384,57076.533.39$163,797
Dec 20221,7512,85576.415.73$150,150
Nov 20221,3332,31885.005.65$126,393
Oct 20222287.185.86$186
Sep 2022705784.888.16$6,407
Aug 20228483,30394.529.13$110,300
Jul 20221,8097,416101.587.54$239,690
Jun 20221,8396,931115.097.98$266,940
May 20222,0728,193109.378.43$295,707
Apr 20222,0897,808104.226.84$271,104
Mar 20222,1307,292108.885.08$268,932
Feb 20221,8426,55991.054.86$199,583
Jan 20221,7815,96381.844.54$172,815
Dec 20211,7476,73771.323.90$150,864
Nov 20212,1098,67377.435.24$208,719
Oct 20212,1839,57379.795.71$228,880
Sep 20212,35010,04469.865.35$217,916
Aug 20212,51710,44866.024.22$210,269
Jul 20212,58510,50470.783.98$224,794
Jun 20212,62010,24369.493.38$216,691
May 20212,71710,82863.483.02$205,150
Apr 20212,6859,50560.362.76$188,285
Mar 20212,0024,71161.302.72$135,522
Feb 202111057.805.55$636
Jan 20216272,66250.412.81$39,088
Dec 20202,75212,10844.642.68$155,244
Nov 20203,00412,88338.772.71$151,334
Oct 20203,84312,51436.972.48$173,091
Sep 20201,1163,76637.091.99$48,891
Aug 20203,09610,78439.982.39$149,499
Jul 20203,38112,00438.371.83$151,638
Jun 20203,47912,92434.901.69$143,263
May 20203,76315,19016.921.81$91,236
Apr 20203,98515,60514.751.80$86,936
Mar 20206,03123,08130.341.86$225,824
Feb 20203,91011,20449.881.98$217,222
Jan 20204,02013,70257.252.09$258,847
Dec 20195,60724,43259.012.30$387,169
Nov 20197,98524,78055.302.75$509,733
Oct 20197,85214,50653.472.42$454,930
Sep 201915,79130,75655.052.66$951,022
Aug 20196,01211,87653.112.30$346,664

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                1,138 bbl  × $106.41 =   $121,095
Casinghead gas     2,559 Mcf  × $  3.05 =     $7,794

────────────────────────────────────────────────────
Month total                                 $128,889

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/53165 is the state's own key, not one this site invented.