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GUAJILLO WEST

Operated by MARATHON OIL EF LLC (P-5 525398) in the EAGLEVILLE (EAGLE FORD-1) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 19097District 01Field 27135700Hydrogen sulphide fieldST-1 filingOilCasinghead gasSaveExport
Value, all time
$132.7 M
Jul 2017 – May 2026
Value, last 12 filed months
$3.0 M
at the published price for each month
Months reported
107
no gaps in the span
Streams
2
oil, casinghead gas

The EAGLEVILLE (EAGLE FORD-1) 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 5,086 leases and 10,995 wells, and the rule below applies to all of them.

Discovered
2009-08-12
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”

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
ST-12none—2 dockets

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
OilDisposition2,036,048 bbl$118,844,813
Casinghead gasProduction4,293,559 Mcf$13,897,980
Total$132,742,792

Wells on this lease (5)

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 28.6290, -98.2834. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.2 miles.

28.62907, -98.28341 · 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 5 wells
With a plug date
0.0%
0 of 5 wells
Median depth
11,281 ft
5 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.
5100.0%

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 11,267 and 11,292 ft, median 11,281 ft, over the 5 wells that filed a depth.

Completions filed
Jul 2017
5 of 5 wells

5 wells

42-0133546258H11,281 ftJul 2017——
42-0133546338H11,275 ftJul 2017——
42-0133546436H11,267 ftJul 2017——
42-0133546534H11,284 ftJul 2017——
42-0133546656H11,292 ftJul 2017——

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.

Leases whose centres are nearest (285)

Ranked by the distance between lease centres, within 5 miles. A lease has no coordinate the state files — each centre is the mean of that lease's own wells, so this measures how far apart two centres are and not whether the two leases touch.

LeaseOperatorCentres apart
GUAJILLO UNIT 16 SOUTHMARATHON OIL EF LLC0.30 mi
WHITSETT-POSEY UNITMARATHON OIL EF LLC0.49 mi
GUAJILLO-WHITSETT POSEY SA1MARATHON OIL EF LLC0.49 mi
GUAJILLO-STCH SA2MARATHON OIL EF LLC0.58 mi
GUAJILLO UNIT 12 SOUTHMARATHON OIL EF LLC0.59 mi
WHITSETT-ROLAND UNITMARATHON OIL EF LLC0.60 mi
BETHUNE STCH PSA E BCRESCENT ENERGY OPERATING, LLC0.60 mi
GUAJILLO-IDYLWOOD SA3MARATHON OIL EF LLC0.62 mi
BETHUNE STCH PSA E CCRESCENT ENERGY OPERATING, LLC0.65 mi
WHITSETT-MASSENGALE UNITMARATHON OIL EF LLC0.70 mi

The 10 nearest are listed. 285 leases in all have a centre within 5 miles of this one.

Operators who reported on those leases

Taken from the same 5-mile set above. This is who filed production, not who holds acreage — the state publishes no acreage register.

Every month this lease reported (107)

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

107 months

May 20262,1162,261106.413.05$232,050
Apr 20263,2904,92098.932.87$339,599
Mar 20261,5352,51489.753.15$145,684
Feb 20261,6082,44963.503.75$111,293
Jan 20262,5642,45159.138.00$171,212
Dec 20252,2912,76156.664.41$141,993
Nov 20252,3454,92858.593.93$156,743
Oct 20253,2995,86459.383.30$215,274
Sep 20253,6387,44162.743.08$251,143
Aug 20254,92110,39163.933.01$345,926
Jul 20256,68312,00266.743.32$485,812
Jun 20255,85410,97166.483.13$423,499
May 20255,88112,20060.553.23$395,529
Apr 20255,7238,97862.363.54$388,696
Mar 20254,8569,17867.704.27$367,926
Feb 20254,81810,42870.884.34$386,766
Jan 20256,00112,61074.324.28$499,948
Dec 20245,94910,61668.993.12$443,558
Nov 20246,53211,70669.052.20$476,770
Oct 20246,89111,09671.372.28$517,125
Sep 20245,4666,96669.612.36$396,958
Aug 20246,2358,61575.632.06$489,331
Jul 20245,6198,33379.932.15$467,014
Jun 20245,9058,88878.082.63$484,473
May 20244,0459,40978.812.20$339,472
Apr 20245,63113,19684.451.66$497,433
Mar 20246,09613,22780.301.55$509,946
Feb 20245,86413,32776.091.78$469,962
Jan 20245,91011,20573.023.30$468,498
Dec 20236,45314,57071.262.61$497,879
Nov 20236,51413,30577.892.81$544,730
Oct 20235,90013,22485.443.09$544,922
Sep 20236,35614,61689.042.74$605,914
Aug 20237,44215,12980.522.67$639,668
Jul 20237,06914,56474.852.64$567,590
Jun 20237,28413,87468.962.26$533,639
May 20236,46515,17270.622.23$490,352
Apr 20235,46813,78278.122.24$458,001
Mar 20236,21616,29672.852.39$491,835
Feb 20236,11314,96975.112.47$496,056
Jan 20236,33818,37276.533.39$547,286
Dec 20226,67818,48376.415.73$616,157
Nov 20226,64015,51285.005.65$651,984
Oct 20226,85721,34787.185.86$722,967
Sep 20226,46524,23584.888.16$746,596
Aug 20226,52026,42494.529.13$857,446
Jul 20226,26224,605101.587.54$821,667
Jun 20227,01122,932115.097.98$989,829
May 20226,95720,376109.378.43$932,719
Apr 20226,81329,935104.226.84$914,734
Mar 20227,82520,331108.885.08$955,194
Feb 20226,96122,23691.054.86$741,840
Jan 20228,34627,94081.844.54$809,819
Dec 20218,21327,68671.323.90$693,702
Nov 20218,13818,30877.435.24$726,002
Oct 20218,28216,88679.795.71$757,305
Sep 20218,23917,24169.865.35$667,832
Aug 20218,58222,13766.024.22$660,015
Jul 20219,24123,58870.783.98$748,007
Jun 20218,60919,98169.493.38$665,788
May 20219,32021,97763.483.02$657,953
Apr 20219,99923,68660.362.76$668,876
Mar 202110,30026,83461.302.72$704,296
Feb 20219,13924,12557.805.55$662,078
Jan 202110,55030,12150.412.81$616,474
Dec 202012,16633,61944.642.68$633,037
Nov 202010,46226,35938.772.71$476,954
Oct 202011,10026,20536.972.48$475,314
Sep 202011,05127,74037.091.99$465,113
Aug 202012,13830,77139.982.39$558,669
Jul 202012,92132,46538.371.83$555,031
Jun 202011,50127,55034.901.69$447,953
May 202012,20735,02816.921.81$270,110
Apr 202013,69234,10314.751.80$263,492
Mar 202015,23032,28730.341.86$522,010
Feb 202013,53229,19949.881.98$732,810
Jan 202014,93928,39857.252.09$914,744
Dec 201916,04333,90859.012.30$1,024,834
Nov 201915,63330,15955.302.75$947,463
Oct 201915,96041,95153.472.42$954,841
Sep 201912,42032,84055.052.66$770,986
Aug 201918,00741,96153.112.30$1,053,045
Jul 201917,34044,45756.272.46$1,085,089
Jun 201919,23438,06452.782.49$1,109,996
May 201917,86135,22758.482.74$1,141,045
Apr 201920,15543,89762.632.75$1,383,055
Mar 201924,07754,02656.803.06$1,533,007
Feb 201923,63457,96950.852.79$1,363,651
Jan 201929,84571,56846.033.23$1,604,800
Dec 201831,96074,59046.594.19$1,801,208
Nov 201832,31186,58052.934.24$2,077,081
Oct 201836,96698,36261.443.40$2,605,433
Sep 201840,45396,04159.543.11$2,707,067
Aug 201847,314108,34559.403.07$3,142,698
Jul 201854,588129,95765.142.93$3,936,881
Jun 201863,782146,86260.183.08$4,290,283
May 201886,845211,43865.382.90$6,291,265
Apr 2018126,241237,10263.842.90$8,747,011
Mar 2018102,125127,41561.222.79$6,607,178
Feb 201832,77476,47261.782.77$2,236,308
Jan 201849,167115,84962.874.01$3,555,605
Dec 201759,381152,04657.272.92$3,844,955
Nov 201768,907157,84855.423.12$4,311,053
Oct 201793,948180,00149.292.98$5,167,762
Sep 2017131,762207,99147.523.09$6,903,457
Aug 2017152,152189,57645.373.00$7,472,698
Jul 201737,09333,60343.873.09$1,731,012

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                2,116 bbl  × $106.41 =   $225,164
Casinghead gas     2,261 Mcf  × $  3.05 =     $6,887

────────────────────────────────────────────────────
Month total                                 $232,050

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. 01/O/19097 is the state's own key, not one this site invented.