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COX, L. L.

Operated by EAGLE FORD OIL CO., INC. (P-5 238351) in the LULING-BRANYON field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 1139District 01Field 55679001Hydrogen sulphide fieldOilCasinghead gasSaveExport
Value, all time
$355 k
Jan 1993 – May 2026
Value, last 12 filed months
$0
at the published price for each month
Months reported
401
no gaps in the span
Streams
2
oil, casinghead gas

The LULING-BRANYON 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 507 leases and 2,955 wells, and the rule below applies to all of them.

Discovered
1922-08-08
as the register files it
Field class
Oil and gas
the register's own label
Between wells
0 ft
minimum
From a lease line
150 ft
minimum

A drilling unit in this field needs at least 2 acres. The field rule took effect on 2018-06-19.

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: “CORRELATIVE INTERVAL 1620' - 2164'”

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
OilDisposition14,576 bbl$330,448
Casinghead gasProduction3,459 Mcf$24,381
Total$354,829

48 Mcf of this lease's gas, across 48 months, carries no value here. No free Texas wellhead gas price exists before 1997, so those months are left out of the total rather than valued at zero. The total above is therefore a floor, not an estimate.

Wells on this lease (13)

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 29.8343, -97.6061. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.7 miles.

29.83437, -97.60543 · 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
100.0%
13 of 13 wells
With a plug date
100.0%
13 of 13 wells
Median depth
2,250 ft
13 wells filed one
Completion to plug
47.5 years
median over 3 wells

What the state filed about each well

On the RRC proration schedule
13100.0%
A plug date is filed
13100.0%
BothOn the schedule and plugged. Neither fact cancels the other.
13100.0%
NeitherNo plug date, and not on the schedule.
00.0%

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

Total depth in feet, 13 of 13 wells. Median 2,250 ft, with the middle half between 2,216 and 2,300 ft; the shallowest is 2,189 ft and the deepest 2,400 ft. The median is published rather than the mean, because a single mis-keyed depth moves a mean and cannot move a median.

When they were last completed

Last completion by decade, 3 of 13 wells, Dec 1969 – Sep 1971. This is the LAST completion filed on each wellbore, not the first — a well recompleted in 2019 counts once, in the 2010s.

Completions filed
Dec 1969 – Sep 1971
3 of 13 wells; 10 filed none
Plug dates filed
Jul 1995 – Mar 2019
13 of 13 wells

Last completion to plug: a median of 47.5 years across the 3 wells that filed both dates, with the middle half between 47.5 years and 48.4 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

13 wells

42-0550156222,225 ft—Mar 2019Yes
42-0550156332,300 ft—Jul 2004Yes
42-0550156442,307 ft—Jul 1995Yes
42-0550156552,269 ft—Mar 2019Yes
42-0550156662,189 ft—Mar 2019Yes
42-0550156772,225 ft—Mar 2019Yes
42-0550156882,250 ft—Mar 2019Yes
42-0550156992,400 ft—Mar 2019Yes
42-0550157012,296 ft—Feb 2019Yes
42-05501608102,315 ft—Mar 2019Yes
42-05530342152,216 ftSep 1971Mar 2019Yes
42-05530365142,215 ftSep 1971Mar 2019Yes
42-05530081132,215 ftDec 1969Mar 2019Yes

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 (401)

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

401 months

May 202600106.413.05$0
Apr 20260098.932.87$0
Mar 20260089.753.15$0
Feb 20260063.503.75$0
Jan 20260059.138.00$0
Dec 20250056.664.41$0
Nov 20250058.593.93$0
Oct 20250059.383.30$0
Sep 20250062.743.08$0
Aug 20250063.933.01$0
Jul 20250066.743.32$0
Jun 20250066.483.13$0
May 20250060.553.23$0
Apr 20250062.363.54$0
Mar 20250067.704.27$0
Feb 20250070.884.34$0
Jan 20250074.324.28$0
Dec 20240068.993.12$0
Nov 20240069.052.20$0
Oct 20240071.372.28$0
Sep 20240069.612.36$0
Aug 20240075.632.06$0
Jul 20240079.932.15$0
Jun 20240078.082.63$0
May 20240078.812.20$0
Apr 20240084.451.66$0
Mar 20240080.301.55$0
Feb 20240076.091.78$0
Jan 20240073.023.30$0
Dec 20230071.262.61$0
Nov 20230077.892.81$0
Oct 20230085.443.09$0
Sep 20230089.042.74$0
Aug 20230080.522.67$0
Jul 20230074.852.64$0
Jun 20230068.962.26$0
May 20230070.622.23$0
Apr 20230078.122.24$0
Mar 20230072.852.39$0
Feb 20230075.112.47$0
Jan 20230076.533.39$0
Dec 20220076.415.73$0
Nov 20220085.005.65$0
Oct 20220087.185.86$0
Sep 20220084.888.16$0
Aug 20220094.529.13$0
Jul 202200101.587.54$0
Jun 202200115.097.98$0
May 202200109.378.43$0
Apr 202200104.226.84$0
Mar 202200108.885.08$0
Feb 20220091.054.86$0
Jan 20220081.844.54$0
Dec 20210071.323.90$0
Nov 20210077.435.24$0
Oct 20210079.795.71$0
Sep 20210069.865.35$0
Aug 20210066.024.22$0
Jul 20210070.783.98$0
Jun 20210069.493.38$0
May 20210063.483.02$0
Apr 20210060.362.76$0
Mar 20210061.302.72$0
Feb 20210057.805.55$0
Jan 20210050.412.81$0
Dec 20200044.642.68$0
Nov 20200038.772.71$0
Oct 20200036.972.48$0
Sep 20200037.091.99$0
Aug 20200039.982.39$0
Jul 20200038.371.83$0
Jun 20200034.901.69$0
May 20200016.921.81$0
Apr 20200014.751.80$0
Mar 20200030.341.86$0
Feb 20200049.881.98$0
Jan 20200057.252.09$0
Dec 20190059.012.30$0
Nov 20190055.302.75$0
Oct 20190053.472.42$0
Sep 20190055.052.66$0
Aug 20190053.112.30$0
Jul 20190056.272.46$0
Jun 20190052.782.49$0
May 20190058.482.74$0
Apr 20190062.632.75$0
Mar 20190056.803.06$0
Feb 20190050.852.79$0
Jan 20190046.033.23$0
Dec 20180046.594.19$0
Nov 20180052.934.24$0
Oct 20180061.443.40$0
Sep 20180059.543.11$0
Aug 20180059.403.07$0
Jul 20180065.142.93$0
Jun 20180060.183.08$0
May 20180065.382.90$0
Apr 20180063.842.90$0
Mar 20180061.222.79$0
Feb 20180061.782.77$0
Jan 20180062.874.01$0
Dec 20170057.272.92$0
Nov 20170055.423.12$0
Oct 20170049.292.98$0
Sep 20170047.523.09$0
Aug 20170045.373.00$0
Jul 20170043.873.09$0
Jun 20170042.493.09$0
May 20170045.373.26$0
Apr 20170047.933.21$0
Mar 20170046.772.98$0
Feb 20170050.452.95$0
Jan 20170049.413.42$0
Dec 20160048.763.72$0
Nov 20160042.492.64$0
Oct 20160046.193.09$0
Sep 20160041.553.10$0
Aug 20160041.442.92$0
Jul 20160041.622.92$0
Jun 20160045.352.69$0
May 20160042.521.99$0
Apr 20160036.561.99$0
Mar 20160033.011.79$0
Feb 20160026.472.06$0
Jan 20160027.352.36$0
Dec 20150032.362.00$0
Nov 20150038.792.17$0
Oct 20150043.552.43$0
Sep 20150042.992.76$0
Aug 20150040.162.87$0
Jul 20150048.152.95$0
Jun 20150056.152.88$0
May 20150055.212.96$0
Apr 20150049.822.71$0
Mar 20150042.892.93$0
Feb 20150044.662.98$0
Jan 20150043.433.10$0
Dec 20140054.693.59$0
Nov 20140070.464.25$0
Oct 20140078.303.90$0
Sep 20140086.164.05$0
Aug 20140089.394.04$0
Jul 20140096.564.18$0
Jun 20140098.164.74$0
May 20140094.734.73$0
Apr 20140095.944.81$0
Mar 20140095.895.06$0
Feb 20140097.406.19$0
Jan 201455090.404.86$4,972
Dec 20130091.824.35$0
Nov 201326088.853.74$2,310
Oct 20130097.423.78$0
Sep 2013920104.113.72$9,578
Aug 201300104.253.52$0
Jul 201300102.523.72$0
Jun 20130094.403.93$0
May 20131065894.834.15$10,293
Apr 20130093.964.28$0
Mar 20130093.623.91$0
Feb 20130091.233.42$0
Jan 201301691.603.42$55
Dec 201202286.773.42$75
Nov 201202086.953.62$73
Oct 201201689.383.40$54
Sep 201201594.672.92$44
Aug 201201792.662.91$49
Jul 201201685.133.02$48
Jun 201201879.822.52$45
May 201201991.612.49$47
Apr 2012019101.652.00$38
Mar 20125522105.052.22$5,827
Feb 2012020101.102.57$51
Jan 201202098.092.73$55
Dec 201101796.873.24$55
Nov 201101795.723.31$56
Oct 201101384.983.65$47
Sep 201101483.623.99$56
Aug 201101883.404.15$75
Jul 201101794.144.52$77
Jun 201101792.904.64$79
May 201101798.134.40$75
Apr 2011017105.964.33$74
Mar 201101796.364.06$69
Feb 201101685.644.18$67
Jan 201101786.504.59$78
Dec 201001785.734.35$74
Nov 201001680.843.80$61
Oct 201001778.103.51$60
Sep 201001672.633.98$64
Aug 201001473.684.42$62
Jul 201001772.554.74$81
Jun 201001670.364.91$79
May 201001971.124.24$80
Apr 201001381.694.12$54
Mar 201001778.394.39$75
Feb 201002573.585.44$136
Jan 201002474.365.96$143
Dec 200901571.445.48$82
Nov 20090074.593.75$0
Oct 20090072.544.11$0
Sep 20090065.543.06$0
Aug 200903467.423.22$109
Jul 200903461.133.46$118
Jun 200903366.163.90$129
May 200902154.743.93$82
Apr 200902746.773.59$97
Mar 200902642.144.06$106
Feb 2009583232.814.63$2,051
Jan 200903335.865.37$177
Dec 200804137.105.98$245
Nov 200804455.496.86$302
Oct 200804675.246.92$318
Sep 2008011101.767.88$87
Aug 200809114.228.48$76
Jul 2008017131.0811.39$194
Jun 20083514131.3313.03$4,779
May 2008016123.1711.57$185
Apr 2008015110.3110.45$157
Mar 2008043101.909.66$416
Feb 200801592.538.77$132
Jan 200801490.388.21$115
Dec 200701388.337.30$95
Nov 200701991.677.29$139
Oct 200704382.856.92$298
Sep 200701875.846.24$112
Aug 2007322069.066.39$2,338
Jul 200702570.906.39$160
Jun 200703062.007.55$226
May 2007010358.747.85$808
Apr 2007403259.617.81$2,634
Mar 20070056.927.30$0
Feb 2007412355.108.22$2,448
Jan 200704150.306.73$276
Dec 2006874456.656.92$5,233
Nov 200604754.207.62$358
Oct 200603854.906.01$229
Sep 2006454060.085.04$2,905
Aug 2006353768.717.34$2,676
Jul 200604869.376.34$304
Jun 20061334066.286.38$9,071
May 200604566.016.42$289
Apr 2006389364.397.36$3,131
Mar 2006319356.707.08$2,416
Feb 200608157.597.75$628
Jan 200609360.598.93$831
Dec 200515210154.9413.42$9,706
Nov 20052911354.6910.59$2,783
Oct 20058413158.3413.80$6,708
Sep 2005012561.4512.08$1,510
Aug 2005011861.519.80$1,156
Jul 2005012855.697.84$1,004
Jun 2005010352.337.38$760
May 2005010245.226.65$678
Apr 2005012049.207.36$883
Mar 20050050.377.15$0
Feb 20050045.226.31$0
Jan 20050043.166.32$0
Dec 20040039.866.75$0
Nov 20040045.286.33$0
Oct 20040049.706.52$0
Sep 20040043.245.28$0
Aug 20040042.375.55$0
Jul 20040038.286.08$0
Jun 20040036.106.43$0
May 20040037.486.49$0
Apr 20040034.475.86$0
Mar 20040034.365.53$0
Feb 20040032.455.51$0
Jan 20040032.036.30$0
Dec 20030030.266.30$0
Nov 20030028.804.60$0
Oct 20030028.174.76$0
Sep 200338026.314.75$1,000
Aug 20030029.765.13$0
Jul 20030029.415.17$0
Jun 20030028.565.98$0
May 200342026.595.97$1,117
Apr 200331026.675.41$827
Mar 20030031.146.10$0
Feb 20030033.487.93$0
Jan 20030030.315.58$0
Dec 20020026.914.85$0
Nov 20020024.664.14$0
Oct 20020026.464.23$0
Sep 20020027.443.64$0
Aug 20020025.963.16$0
Jul 20020024.583.06$0
Jun 200214023.733.34$332
May 200260024.663.58$1,480
Apr 200258023.653.51$1,372
Mar 2002135022.003.10$2,970
Feb 2002113018.222.38$2,059
Jan 20020017.172.38$0
Dec 2001103016.932.36$1,744
Nov 2001115118.072.41$2,080
Oct 2001132119.782.53$2,613
Sep 200192124.262.25$2,234
Aug 2001129124.873.05$3,211
Jul 20010123.933.20$3
Jun 200176024.563.82$1,867
May 200187125.524.31$2,225
Apr 2001101124.685.34$2,498
Mar 200171124.545.38$1,748
Feb 2001111127.755.77$3,086
Jan 2001135127.478.40$3,717
Dec 2000139126.889.12$3,745
Nov 20000132.215.66$6
Oct 2000167131.235.15$5,221
Sep 20000131.875.19$5
Aug 2000169129.644.54$5,014
Jul 20000128.534.09$4
Jun 2000193129.304.40$5,659
May 20000127.263.68$4
Apr 200095124.513.12$2,332
Mar 20000128.422.86$3
Feb 2000170127.622.73$4,698
Jan 200070125.272.48$1,771
Dec 1999178124.282.42$4,324
Nov 19990123.192.43$2
Oct 1999146120.982.80$3,066
Sep 1999175121.752.62$3,809
Aug 19990119.262.88$3
Jul 1999175117.892.37$3,133
Jun 19990115.942.36$2
May 1999147115.792.32$2,323
Apr 199960115.102.21$908
Mar 199978112.471.84$975
Feb 199910519.981.82$1,050
Jan 1999176110.381.90$1,829
Dec 1998019.201.77$2
Nov 1998160110.892.19$1,745
Oct 19980112.421.97$2
Sep 199881112.592.08$1,022
Aug 199873111.301.91$827
Jul 1998183111.742.24$2,151
Jun 199894111.242.24$1,059
May 1998127112.622.21$1,605
Apr 199876113.042.51$994
Mar 199885112.802.31$1,090
Feb 1998108113.952.30$1,509
Jan 1998109114.702.15$1,604
Dec 1997137116.322.41$2,238
Nov 1997120118.193.09$2,186
Oct 1997122119.253.15$2,352
Sep 1997129117.742.95$2,291
Aug 1997131117.862.55$2,342
Jul 1997154117.582.25$2,710
Jun 199789117.242.26$1,537
May 199788118.972.31$1,672
Apr 1997146117.882.08$2,613
Mar 1997175118.951.94$3,318
Feb 199793120.492.21$1,908
Jan 1997130123.483.54$3,056
Dec 1996156123.32—$3,638
Nov 1996160121.97—$3,515
Oct 199676123.31—$1,772
Sep 1996180122.22—$4,000
Aug 1996169120.26—$3,424
Jul 199673119.55—$1,427
Jun 1996188118.73—$3,521
May 199675119.43—$1,457
Apr 1996126121.51—$2,710
Mar 1996128119.38—$2,481
Feb 1996163116.98—$2,768
Jan 1996153117.07—$2,612
Dec 1995146117.19—$2,510
Nov 1995123116.00—$1,968
Oct 1995167115.43—$2,577
Sep 1995172116.18—$2,783
Aug 1995181115.92—$2,882
Jul 199536115.24—$549
Jun 1995125116.41—$2,051
May 1995180117.56—$3,161
Apr 199589117.73—$1,578
Mar 1995146116.44—$2,400
Feb 1995137116.58—$2,271
Jan 1995127115.92—$2,022
Dec 1994135115.03—$2,029
Nov 1994126115.90—$2,003
Oct 1994145115.58—$2,259
Sep 199491115.29—$1,391
Aug 1994126116.13—$2,032
Jul 1994147117.56—$2,581
Jun 1994162117.09—$2,769
May 1994150115.88—$2,382
Apr 1994122114.14—$1,725
Mar 1994158112.46—$1,969
Feb 1994149112.50—$1,863
Jan 1994120112.66—$1,519
Dec 1993192112.33—$2,367
Nov 1993133114.49—$1,927
Oct 1993157115.85—$2,488
Sep 1993185115.03—$2,781
Aug 1993194115.66—$3,038
Jul 1993190115.46—$2,937
Jun 1993186116.79—$3,123
May 1993110117.68—$1,945
Apr 1993178118.05—$3,213
Mar 1993163118.14—$2,957
Feb 1993158117.90—$2,828
Jan 1993153116.93—$2,590

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.

Jan 2014 — as filed, then multipliedworked
Oil                   55 bbl  × $ 90.40 =     $4,972
Casinghead gas         0 Mcf  × $  4.86 =         $0

────────────────────────────────────────────────────
Month total                                   $4,972

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/1139 is the state's own key, not one this site invented.