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ZIMMERMAN 01

Operated by MARATHON OIL EF LLC (P-5 525398) in the DE WITT (EAGLE FORD SHALE) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Gas lease lease 271351District 02Field 24492500Hydrogen sulphide field2 tax incentive programmesCondensateGasSaveExport
Value, all time
$12.8 M
Jul 2013 – May 2026
Value, last 12 filed months
$79 k
at the published price for each month
Months reported
155
no gaps in the span
Streams
2
condensate, gas

The DE WITT (EAGLE FORD SHALE) 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 752 leases and 817 wells, and the rule below applies to all of them.

Discovered
2009-04-22
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 80 acres. The field rule took effect on 2018-01-23.

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: “DOCKET #02-0305519, NUNC PRO TUNC EFF 1/23/2018.”

Severance-tax incentive filings

Applications the operator filed to have this lease's gas taxed at a reduced state rate. A filing is an application, and this page never calls one a reduction that was granted.

ProgrammeFilingsWith an approval dateDatedDocket
High Cost Gas112014-03-22212772
NGPA1none——

This says nothing about a royalty. A severance tax is charged to the operator. Whether a reduced rate reaches a royalty owner depends on the wording of the lease instrument, which is a private contract this site does not hold.

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
CondensateDisposition71,415 bbl$5,534,684
GasProduction1,944,047 Mcf$7,218,760
Total$12,753,443

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 29.1363, -97.4001. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.0 miles.

29.13631, -97.40015 · 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
13,806 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 13,806 ft.

Completions filed
Jul 2013
1 of 1 wells

1 well

42-1233309601H13,806 ftJul 2013——

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 (155)

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

155 months

May 2026432106.413.05$523
Apr 2026141598.932.87$1,428
Mar 20260089.753.15$0
Feb 202642763.503.75$355
Jan 20261563359.138.00$5,950
Dec 2025471,20656.664.41$7,986
Nov 2025511,84758.593.93$10,240
Oct 2025421,87059.383.30$8,674
Sep 2025361,39362.743.08$6,545
Aug 2025782,72363.933.01$13,196
Jul 2025662,21966.743.32$11,761
Jun 2025732,54666.483.13$12,819
May 2025842,99460.553.23$14,764
Apr 20251082,99662.363.54$17,350
Mar 2025962,58167.704.27$17,516
Feb 2025971270.884.34$3,729
Jan 2025671,89574.324.28$13,088
Dec 20241613,38468.993.12$21,670
Nov 20241653,18969.052.20$18,404
Oct 20241443,57171.372.28$18,424
Sep 2024843,23369.612.36$13,491
Aug 2024913,28575.632.06$13,661
Jul 20241013,35979.932.15$15,283
Jun 20241113,29878.082.63$17,354
May 20241433,41378.812.20$18,773
Apr 20241153,26384.451.66$15,126
Mar 20241403,45080.301.55$16,573
Feb 20241112,91176.091.78$13,638
Jan 20241042,65073.023.30$16,333
Dec 2023993,44171.262.61$16,038
Nov 20231094,00277.892.81$19,726
Oct 2023783,21285.443.09$16,581
Sep 2023723,44889.042.74$15,841
Aug 2023673,42580.522.67$14,549
Jul 2023884,11874.852.64$17,466
Jun 2023714,31968.962.26$14,651
May 2023634,40270.622.23$14,254
Apr 2023694,90778.122.24$16,371
Mar 2023984,81672.852.39$18,665
Feb 2023974,81575.112.47$19,158
Jan 20231054,63476.533.39$23,734
Dec 20221003,91576.415.73$30,070
Nov 20223143,79885.005.65$48,134
Oct 2022654,10987.185.86$29,761
Sep 2022685,34684.888.16$49,415
Aug 202235,47094.529.13$50,209
Jul 2022164,685101.587.54$36,960
Jun 2022983,257115.097.98$37,261
May 2022773,929109.378.43$41,555
Apr 20222346,405104.226.84$68,182
Mar 2022433,579108.885.08$22,850
Feb 20221181,28391.054.86$16,978
Jan 2022221,18581.844.54$7,178
Dec 20218956071.323.90$8,531
Nov 20212692477.435.24$6,852
Oct 20213350879.795.71$5,536
Sep 2021451,07469.865.35$8,891
Aug 20211164,15666.024.22$25,199
Jul 2021584,62370.783.98$22,514
Jun 20211194,60669.493.38$23,840
May 20211044,36063.483.02$19,759
Apr 2021784,59760.362.76$17,389
Mar 2021564,78561.302.72$16,433
Feb 2021493,02757.805.55$19,626
Jan 2021994,54650.412.81$17,766
Dec 20201784,76844.642.68$20,703
Nov 20201204,32138.772.71$16,347
Oct 2020964,74036.972.48$15,297
Sep 20203224,90337.091.99$21,705
Aug 20202435,75439.982.39$23,439
Jul 20202865,82938.371.83$21,612
Jun 20202055,01634.901.69$15,633
May 20201845,36916.921.81$12,857
Apr 20201985,46014.751.80$12,772
Mar 2020875,35930.341.86$12,587
Feb 2020383,31349.881.98$8,457
Jan 2020644,88157.252.09$13,888
Dec 20191134,89659.012.30$17,950
Nov 20191084,70955.302.75$18,925
Oct 20191945,68953.472.42$24,132
Sep 20191625,30555.052.66$23,015
Aug 20191665,48053.112.30$21,444
Jul 20191755,78256.272.46$24,071
Jun 20191795,46952.782.49$23,072
May 20191975,70458.482.74$27,151
Apr 20192005,46862.632.75$27,567
Mar 20192185,65256.803.06$29,689
Feb 20192035,29050.852.79$25,093
Jan 20192235,73846.033.23$28,788
Dec 20182165,74046.594.19$34,088
Nov 20182145,79052.934.24$35,861
Oct 20182076,08261.443.40$33,385
Sep 20181986,02059.543.11$30,499
Aug 20182096,30259.403.07$31,740
Jul 20182106,38765.142.93$32,405
Jun 20182136,31460.183.08$32,246
May 20182346,65565.382.90$34,604
Apr 20182386,57163.842.90$34,255
Mar 20182646,95661.222.79$35,547
Feb 20182616,70461.782.77$34,669
Jan 20182968,24262.874.01$51,654
Dec 20172727,05357.272.92$36,183
Nov 20172717,39955.423.12$38,092
Oct 20172838,08049.292.98$38,057
Sep 20172938,22847.523.09$39,326
Aug 20172136,43245.373.00$28,988
Jul 20172808,31343.873.09$37,948
Jun 20173008,26042.493.09$38,248
May 20173028,48645.373.26$41,395
Apr 20173148,59747.933.21$42,660
Mar 20173388,97746.772.98$42,593
Feb 20173168,29350.452.95$40,428
Jan 20174179,46349.413.42$52,956
Dec 20164389,78848.763.72$57,796
Nov 20163939,88042.492.64$42,825
Oct 201636810,54846.193.09$49,594
Sep 201633510,47041.553.10$46,383
Aug 201635311,03041.442.92$46,884
Jul 201639511,39641.622.92$49,766
Jun 201636711,34345.352.69$47,109
May 201643912,64942.521.99$43,851
Apr 201651212,42136.561.99$43,449
Mar 201647113,36133.011.79$39,517
Feb 201648512,81926.472.06$39,292
Jan 201652013,47727.352.36$46,086
Dec 201557013,84932.362.00$46,163
Nov 201551013,98938.792.17$50,102
Oct 201547615,08443.552.43$57,332
Sep 201543315,27442.992.76$60,747
Aug 201549516,55340.162.87$67,428
Jul 201563317,26048.152.95$81,311
Jun 201565417,55056.152.88$87,316
May 201570519,04155.212.96$95,198
Apr 201575019,18149.822.71$89,280
Mar 201584721,15842.892.93$98,420
Feb 201576320,20944.662.98$94,221
Jan 201591722,93443.433.10$110,935
Dec 201493124,65754.693.59$139,469
Nov 201489325,90170.464.25$173,048
Oct 20141,02929,48378.303.90$195,583
Sep 201499030,50486.164.05$208,701
Aug 20141,20234,91989.394.04$248,349
Jul 20141,36838,37796.564.18$292,495
Jun 20141,48441,99498.164.74$344,590
May 20141,75849,46094.734.73$400,311
Apr 20141,98855,29395.944.81$456,639
Mar 20142,40064,95295.895.06$558,585
Feb 20142,46062,68997.406.19$627,774
Jan 20142,85274,15490.404.86$618,263
Dec 20133,23884,57491.824.35$665,589
Nov 20134,08192,55688.853.74$708,597
Oct 20133,962107,55597.423.78$792,467
Sep 20134,209104,369104.113.72$826,216
Aug 20134,913105,418104.253.52$883,527
Jul 20133,00066,728102.523.72$555,637

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
Condensate             4 bbl  × $106.41 =       $426
Gas                   32 Mcf  × $  3.05 =        $97

────────────────────────────────────────────────────
Month total                                     $523

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. 02/G/271351 is the state's own key, not one this site invented.