ANZALDUA OXFORD UNIT

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 10613District 02Field 27135750Hydrogen sulphide fieldOilCasinghead gasSaveExport
Value, all time
$99.8 M
Jul 2013 – May 2026
Value, last 12 filed months
$4.3 M
at the published price for each month
Months reported
155
no gaps in the span
Streams
2
oil, casinghead gas

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
OilDisposition1,291,920 bbl$94,535,981
Casinghead gasProduction1,628,232 Mcf$5,231,968
Total$99,767,949

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 28.8826, -98.0213. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.3 miles.

28.88263, -98.02134 · 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
11,026 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 11,009 and 11,063 ft, median 11,026 ft, over the 5 wells that filed a depth.

Completions filed
Jan 2016 – Sep 2023
5 of 5 wells

5 wells

42-255330231H11,035 ftSep 2023
42-255330242H11,026 ftMay 2023
42-25537507501H11,009 ftMar 2023
42-25537508502H11,019 ftMar 2023
42-255330253H11,063 ftJan 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 (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 20263,3262,515106.413.05$361,580
Apr 20264,0944,72798.932.87$418,585
Mar 20264,5065,24989.753.15$420,945
Feb 20264,9885,99363.503.75$339,214
Jan 20264,5426,20759.138.00$318,212
Dec 20254,6206,69056.664.41$291,295
Nov 20255,0105,71658.593.93$315,979
Oct 20255,0856,35159.383.30$322,936
Sep 20255,1046,47462.743.08$340,145
Aug 20255,4187,66763.933.01$369,487
Jul 20256,0807,33666.743.32$430,100
Jun 20255,0657,29766.483.13$359,551
May 20255,4438,11760.553.23$355,810
Apr 20255,3278,40762.363.54$361,979
Mar 20256,2609,42067.704.27$464,010
Feb 20256,2527,71670.884.34$476,636
Jan 20257,92211,19074.324.28$636,641
Dec 20248,35310,13768.993.12$607,915
Nov 20248,02311,06469.052.20$578,312
Oct 20248,23511,98471.372.28$615,072
Sep 20248,44411,75869.612.36$615,587
Aug 20248,92113,45075.632.06$702,451
Jul 20248,45014,83179.932.15$707,245
Jun 20248,76814,33978.082.63$722,374
May 20249,68919,07178.812.20$805,517
Apr 20248,99214,90084.451.66$784,096
Mar 202412,07919,01580.301.55$999,324
Feb 202411,82115,81576.091.78$927,668
Jan 20248,81810,55173.023.30$678,684
Dec 202314,30519,67571.262.61$1,070,740
Nov 202311,98715,15177.892.81$976,205
Oct 202314,34521,06785.443.09$1,290,677
Sep 202315,06726,55589.042.74$1,414,195
Aug 202317,94430,23480.522.67$1,525,663
Jul 202320,20430,73074.852.64$1,593,452
Jun 202322,65030,17068.962.26$1,630,082
May 202327,58435,10970.622.23$2,026,184
Apr 202335,31737,08678.122.24$2,841,954
Mar 202346,95651,10172.852.39$3,543,037
Feb 202330,54423,66475.112.47$2,352,508
Jan 20231,29898776.533.39$102,680
Dec 20223,3902,38176.415.73$272,671
Nov 20223,1682,82285.005.65$285,214
Oct 20224,0803,91987.185.86$378,674
Sep 20223,2862,78184.888.16$301,619
Aug 20222,2872,22994.529.13$236,512
Jul 20222,4322,034101.587.54$262,383
Jun 20221,9961,998115.097.98$245,658
May 20223,7523,486109.378.43$439,754
Apr 20223,0833,005104.226.84$341,857
Mar 20223,3372,951108.885.08$378,313
Feb 20223,1232,83391.054.86$298,114
Jan 20223,6952,47581.844.54$313,630
Dec 20213,5862,99971.323.90$267,447
Nov 20213,7923,24377.435.24$310,598
Oct 20213,6373,46679.795.71$310,001
Sep 20213,6593,28869.865.35$273,212
Aug 20214,1543,67966.024.22$289,775
Jul 20214,2273,54970.783.98$313,319
Jun 20214,1433,23869.493.38$298,844
May 20214,4483,32663.483.02$292,396
Apr 20214,4629,59360.362.76$295,788
Mar 20214,9559,33261.302.72$329,096
Feb 20213,7638,69957.805.55$265,763
Jan 20214,7049,84050.412.81$264,782
Dec 20204,7459,03444.642.68$235,987
Nov 20203,1248,26038.772.71$143,474
Oct 20202,68710,02536.972.48$124,185
Sep 20204,32210,31537.091.99$180,841
Aug 20204,1348,40439.982.39$185,322
Jul 20204,89410,07938.371.83$206,178
Jun 20205,2339,53634.901.69$198,751
May 20201,5896,85116.921.81$39,319
Apr 20201,0595,70114.751.80$25,907
Mar 20201,5266,84630.341.86$59,007
Feb 20201,6296,48049.881.98$94,089
Jan 20202,2126,18357.252.09$139,589
Dec 20192,4236,70559.012.30$158,432
Nov 20192,6437,25455.302.75$166,111
Oct 20192,5635,26153.472.42$149,768
Sep 20193,5973,16955.052.66$206,436
Aug 20193,0924,00553.112.30$173,445
Jul 20193,5884,93756.272.46$214,042
Jun 20193,4674,69752.782.49$194,689
May 20193,3854,54358.482.74$210,404
Apr 20193,5724,50962.632.75$236,117
Mar 20193,9593,99956.803.06$237,117
Feb 20192,9522,46250.852.79$156,984
Jan 20194,0064,42446.033.23$198,678
Dec 20184,2744,72846.594.19$218,914
Nov 20183,9104,51552.934.24$226,087
Oct 20184,2514,45961.443.40$276,333
Sep 20182,3932,94759.543.11$151,639
Aug 20183,5534,57759.403.07$225,084
Jul 20184,1336,08165.142.93$287,052
Jun 20184,1035,73960.183.08$264,577
May 20184,5946,06965.382.90$317,961
Apr 20183,9304,75463.842.90$264,682
Mar 20184,0996,78761.222.79$269,855
Feb 20184,3675,67461.782.77$285,488
Jan 20184,3895,73762.874.01$298,938
Dec 20174,8636,73257.272.92$298,172
Nov 20175,0796,01155.423.12$300,223
Oct 20175,4376,47449.292.98$287,306
Sep 20174,9254,81947.523.09$248,914
Aug 20173,9004,74245.373.00$191,190
Jul 20175,1866,49943.873.09$247,574
Jun 20174,9345,85042.493.09$227,706
May 20175,1636,86245.373.26$256,639
Apr 20175,3087,68647.933.21$279,097
Mar 20175,9947,00746.772.98$301,246
Feb 20174,5704,92550.452.95$245,098
Jan 20175,6496,55449.413.42$301,524
Dec 20165,9526,83148.763.72$315,650
Nov 20165,4306,21642.492.64$247,158
Oct 20166,2567,82946.193.09$313,158
Sep 20166,5946,90141.553.10$295,378
Aug 20166,0746,42541.442.92$270,495
Jul 20167,55511,17741.622.92$347,124
Jun 20165,5996,75045.352.69$272,044
May 20166,6037,63742.521.99$295,965
Apr 20166,6866,28436.561.99$256,952
Mar 20167,0118,27633.011.79$246,280
Feb 20167,3706,52726.472.06$208,553
Jan 20165,1385,75327.352.36$154,126
Dec 20157,0839,26332.362.00$247,745
Nov 20156,4667,31438.792.17$266,668
Oct 20157,1347,64243.552.43$329,230
Sep 20156,8527,20142.992.76$314,431
Aug 20159,0818,99840.162.87$390,540
Jul 20155,7296,80548.152.95$295,893
Jun 20155,7937,70056.152.88$347,475
May 20159,11211,96755.212.96$538,441
Apr 20158,4239,32849.822.71$444,881
Mar 20159,0029,36742.892.93$413,585
Feb 20157,4137,69744.662.98$353,972
Jan 201512,02110,77843.433.10$555,491
Dec 20149,89710,77754.693.59$579,971
Nov 201410,50912,36670.464.25$793,042
Oct 201412,82416,26378.303.90$1,067,561
Sep 201410,80912,89586.164.05$983,469
Aug 201415,12716,30689.394.04$1,417,999
Jul 201412,36412,56496.564.18$1,246,380
Jun 201414,23517,25398.164.74$1,479,033
May 201417,36619,88394.734.73$1,739,059
Apr 201418,32323,04195.944.81$1,868,716
Mar 201419,85123,17595.895.06$2,020,704
Feb 201415,54716,82397.406.19$1,618,446
Jan 201423,99726,07390.404.86$2,296,062
Dec 201329,52130,36891.824.35$2,842,855
Nov 201325,77424,86688.853.74$2,382,976
Oct 201339,40439,25497.423.78$3,987,093
Sep 201349,03146,858104.113.72$5,278,823
Aug 201366,56496,212104.253.52$7,278,214
Jul 201300102.523.72$0

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                3,326 bbl  × $106.41 =   $353,920
Casinghead gas     2,515 Mcf  × $  3.05 =     $7,660

────────────────────────────────────────────────────
Month total                                 $361,580

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/10613 is the state's own key, not one this site invented.