MineralRecord
Log inSign up

GUAJILLO UNIT 12 SOUTH

Operated by MARATHON OIL EF LLC (P-5 525398) in the EAGLEVILLE (EAGLE FORD-2) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 11258District 02Field 27135750Hydrogen sulphide fieldOilCasinghead gasSaveExport
Value, all time
$37.9 M
Jun 2016 – May 2026
Value, last 12 filed months
$765 k
at the published price for each month
Months reported
120
no gaps in the span
Streams
2
oil, casinghead gas

The EAGLEVILLE (EAGLE FORD-2) 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 3,304 leases and 7,959 wells, and the rule below applies to all of them.

Discovered
2009-03-20
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 2017-02-28.

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: “ BASED ON 3000 TO 1 GAS OIL RATIO”

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
OilDisposition664,899 bbl$33,397,646
Casinghead gasProduction1,444,308 Mcf$4,478,653
Total$37,876,299

Wells on this lease (4)

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 28.6362, -98.2782. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.2 miles.

28.63618, -98.27819 · 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 4 wells
With a plug date
0.0%
0 of 4 wells
Median depth
11,372 ft
4 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.
4100.0%

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 11,322 and 11,392 ft, median 11,372 ft, over the 4 wells that filed a depth.

Completions filed
Jun 2016
4 of 4 wells

4 wells

42-297358011H11,392 ftJun 2016——
42-297358023H11,371 ftJun 2016——
42-297358032H11,373 ftJun 2016——
42-297358044H11,322 ftJun 2016——

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 (120)

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

120 months

May 20261,0973,413106.413.05$127,127
Apr 20261,1933,24498.932.87$127,333
Mar 202681981789.753.15$76,078
Feb 20266461,18963.503.75$45,480
Jan 20269971,90359.138.00$74,173
Dec 202570799456.664.41$44,446
Nov 20256301,11558.593.93$41,290
Oct 20257191,17259.383.30$46,567
Sep 202588898962.743.08$58,756
Aug 20259921,14363.933.01$66,864
Jul 20258066.743.32$534
Jun 20257771,55966.483.13$56,533
May 202581177960.553.23$51,624
Apr 20257811,18362.363.54$52,895
Mar 20258422,15167.704.27$66,185
Feb 202572789070.884.34$55,393
Jan 20259831,72374.324.28$80,429
Dec 20241,2792,41268.993.12$95,767
Nov 20246781,36969.052.20$49,826
Oct 20241,0351,00571.372.28$76,161
Sep 202425767669.612.36$19,488
Aug 20246241,07675.632.06$49,414
Jul 20241,1932,12379.932.15$99,914
Jun 20241,4252,23578.082.63$117,151
May 20241,1972,80378.812.20$100,498
Apr 20249772,91284.451.66$87,339
Mar 20241,3653,21780.301.55$114,580
Feb 20241,3262,88876.091.78$106,046
Jan 20241,4263,06973.023.30$114,247
Dec 20231,3903,58971.262.61$108,421
Nov 20231,5824,22877.892.81$135,092
Oct 20231,6274,98585.443.09$154,401
Sep 20231,5174,49689.042.74$147,370
Aug 20231,5804,18980.522.67$138,418
Jul 20231,2192,30374.852.64$97,326
Jun 20231,3702,63568.962.26$100,426
May 20231,4912,82270.622.23$111,580
Apr 20231,5382,87078.122.24$126,571
Mar 20231,1573,12072.852.39$91,754
Feb 20239352,75975.112.47$77,031
Jan 20231,3653,45976.533.39$116,182
Dec 20221,1932,68076.415.73$106,511
Nov 20221,8454,03085.005.65$179,579
Oct 20221,3173,52687.185.86$135,492
Sep 20221,5585,00684.888.16$173,110
Aug 20221,7544,35494.529.13$205,528
Jul 20221,5643,556101.587.54$185,691
Jun 20221,1892,764115.097.98$158,891
May 20221,6954,331109.378.43$221,906
Apr 20221,7893,799104.226.84$212,426
Mar 20222,0183,770108.885.08$238,858
Feb 20221,7663,53591.054.86$177,970
Jan 20221,9964,23281.844.54$182,556
Dec 20211,7533,17871.323.90$137,415
Nov 20211,9162,73777.435.24$162,689
Oct 20211,9802,95179.795.71$174,846
Sep 20211,7283,30869.865.35$138,419
Aug 20212,0914,71866.024.22$157,961
Jul 20212,1495,19270.783.98$172,781
Jun 20211,9983,66569.493.38$151,231
May 20212,1053,86963.483.02$145,301
Apr 20212,1403,82460.362.76$139,719
Mar 20212,2864,48961.302.72$152,328
Feb 20212,0584,61957.805.55$144,578
Jan 20212,4065,60450.412.81$137,035
Dec 20202,4246,28644.642.68$125,025
Nov 20202,1956,05138.772.71$101,478
Oct 20202,6996,52836.972.48$115,961
Sep 20202,9837,07237.091.99$124,720
Aug 20202,5524,76439.982.39$113,392
Jul 20202,6004,96838.371.83$108,829
Jun 20202,4335,54034.901.69$94,276
May 20202,7596,14416.921.81$57,832
Apr 20202,9775,91314.751.80$54,580
Mar 20202,7035,32630.341.86$91,895
Feb 20202,6785,00549.881.98$143,492
Jan 20202,9796,14357.252.09$183,416
Dec 20192,1544,61959.012.30$137,751
Nov 20192,5615,39055.302.75$156,450
Oct 20193,5808,05153.472.42$210,894
Sep 20192,4495,65855.052.66$149,852
Aug 20192,5445,82853.112.30$148,542
Jul 20193,3387,66256.272.46$206,678
Jun 20193,3207,46352.782.49$193,821
May 20193,8455,92858.482.74$241,100
Apr 20192,5664,78062.632.75$173,857
Mar 20193,61611,31456.803.06$240,033
Feb 20193,0896,34950.852.79$174,803
Jan 20193,7077,11146.033.23$193,589
Dec 20183,4456,17346.594.19$186,339
Nov 20183,2215,73752.934.24$194,797
Oct 20183,6056,70861.443.40$244,286
Sep 20183,8507,43059.543.11$252,321
Aug 20183,7262,56959.403.07$229,202
Jul 20184,5469,55365.142.93$324,135
Jun 20184,2838,04260.183.08$282,496
May 20184,2679,11565.382.90$305,417
Apr 20184,8588,50763.842.90$334,812
Mar 20185,35020,76261.222.79$385,387
Feb 20185,20927,98661.782.77$399,225
Jan 20186,17731,42862.874.01$514,353
Dec 20175,83632,77657.272.92$429,983
Nov 20176,27233,46955.423.12$451,963
Oct 20177,92536,14449.292.98$498,465
Sep 20176,61118,47147.523.09$371,180
Aug 20177,32323,59045.373.00$403,118
Jul 201710,58131,04543.873.09$560,033
Jun 201710,54036,96442.493.09$561,963
May 201711,72538,10545.373.26$656,315
Apr 201711,71937,07947.933.21$680,775
Mar 201710,14733,15846.772.98$573,508
Feb 201711,15735,32350.452.95$667,165
Jan 201714,84535,82949.413.42$855,984
Dec 201612,78535,18248.763.72$754,373
Nov 201631,80190,65542.492.64$1,590,948
Oct 201629,30654,99446.193.09$1,523,590
Sep 201640,48673,65041.553.10$1,910,555
Aug 201655,25690,58641.442.92$2,554,713
Jul 201678,892109,13741.622.92$3,602,639
Jun 201692,940119,00745.352.69$4,534,462

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                1,097 bbl  × $106.41 =   $116,732
Casinghead gas     3,413 Mcf  × $  3.05 =    $10,395

────────────────────────────────────────────────────
Month total                                 $127,127

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/O/11258 is the state's own key, not one this site invented.