COX-CHAFFIN

Operated by VIEJO OIL & GAS, LLC (P-5 885567) in the P. H. D. field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 4606District 8AField 68101001Hydrogen sulphide fieldOilCasinghead gasSaveExport
Value, all time
$4.2 M
Jan 1993 – May 2026
Value, last 12 filed months
$114 k
at the published price for each month
Months reported
401
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 35 leases and 206 wells, and the rule below applies to all of them.

Discovered
1944-06-20
as the register files it
Field class
Oil
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 20 acres.

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: SWR 48.

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
OilDisposition72,392 bbl$4,178,835
Casinghead gasProduction20 Mcf$0
Total$4,178,835

20 Mcf of this lease's gas, across 20 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 (2)

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 33.2852, -101.5113. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.1 miles.

33.28521, -101.51126 · 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
50.0%
1 of 2 wells
With a plug date
0.0%
0 of 2 wells
Median depth
3,820 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
150.0%
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.
150.0%

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 3,820 ft.

Completions filed
Apr 2000
1 of 2 wells; 1 filed none

2 wells

42-169006671
42-1690066823,820 ftApr 2000Yes

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 20261540106.413.05$16,387
Apr 2026136098.932.87$13,454
Mar 2026129089.753.15$11,578
Feb 2026156063.503.75$9,906
Jan 2026140059.138.00$8,278
Dec 2025142056.664.41$8,046
Nov 2025148058.593.93$8,671
Oct 20250059.383.30$0
Sep 2025152062.743.08$9,536
Aug 2025138063.933.01$8,822
Jul 2025148066.743.32$9,878
Jun 2025140066.483.13$9,307
May 2025158060.553.23$9,567
Apr 2025147062.363.54$9,167
Mar 2025149067.704.27$10,087
Feb 2025145070.884.34$10,278
Jan 2025130074.324.28$9,662
Dec 2024139068.993.12$9,590
Nov 2024131069.052.20$9,046
Oct 2024118071.372.28$8,422
Sep 2024152069.612.36$10,581
Aug 2024145075.632.06$10,966
Jul 2024145079.932.15$11,590
Jun 2024135078.082.63$10,541
May 2024148078.812.20$11,664
Apr 2024148084.451.66$12,499
Mar 2024137080.301.55$11,001
Feb 2024154076.091.78$11,718
Jan 20240073.023.30$0
Dec 2023159071.262.61$11,330
Nov 2023147077.892.81$11,450
Oct 2023159085.443.09$13,585
Sep 2023144089.042.74$12,822
Aug 2023163080.522.67$13,125
Jul 2023160074.852.64$11,976
Jun 2023160068.962.26$11,034
May 2023148070.622.23$10,452
Apr 2023137078.122.24$10,702
Mar 2023145072.852.39$10,563
Feb 2023176075.112.47$13,219
Jan 2023148076.533.39$11,326
Dec 2022294076.415.73$22,465
Nov 2022148085.005.65$12,580
Oct 2022157087.185.86$13,687
Sep 2022158084.888.16$13,411
Aug 2022158094.529.13$14,934
Jul 20221480101.587.54$15,034
Jun 20222770115.097.98$31,880
May 20221470109.378.43$16,077
Apr 20221410104.226.84$14,695
Mar 20222650108.885.08$28,853
Feb 2022148091.054.86$13,475
Jan 2022221081.844.54$18,087
Dec 2021300071.323.90$21,396
Nov 2021147077.435.24$11,382
Oct 2021295079.795.71$23,538
Sep 2021145069.865.35$10,130
Aug 2021294066.024.22$19,410
Jul 2021287070.783.98$20,314
Jun 2021136069.493.38$9,451
May 2021277063.483.02$17,584
Apr 2021298060.362.76$17,987
Mar 2021306061.302.72$18,758
Feb 2021287057.805.55$16,589
Jan 2021278050.412.81$14,014
Dec 2020436044.642.68$19,463
Nov 2020299038.772.71$11,592
Oct 2020445036.972.48$16,452
Sep 2020290037.091.99$10,756
Aug 2020144039.982.39$5,757
Jul 2020308038.371.83$11,818
Jun 20200034.901.69$0
May 20200016.921.81$0
Apr 20200014.751.80$0
Mar 2020298030.341.86$9,041
Feb 2020317049.881.98$15,812
Jan 2020439057.252.09$25,133
Dec 2019121059.012.30$7,140
Nov 2019115055.302.75$6,360
Oct 2019116053.472.42$6,203
Sep 2019123055.052.66$6,771
Aug 2019119053.112.30$6,320
Jul 2019230056.272.46$12,942
Jun 2019122052.782.49$6,439
May 2019123058.482.74$7,193
Apr 2019240062.632.75$15,031
Mar 2019123056.803.06$6,986
Feb 2019124050.852.79$6,305
Jan 2019224046.033.23$10,311
Dec 2018102046.594.19$4,752
Nov 2018128052.934.24$6,775
Oct 2018124061.443.40$7,619
Sep 2018104059.543.11$6,192
Aug 2018230059.403.07$13,662
Jul 2018112065.142.93$7,296
Jun 2018123060.183.08$7,402
May 2018227065.382.90$14,841
Apr 2018119063.842.90$7,597
Mar 2018252061.222.79$15,427
Feb 2018124061.782.77$7,661
Jan 2018124062.874.01$7,796
Dec 2017242057.272.92$13,859
Nov 2017127055.423.12$7,038
Oct 2017125049.292.98$6,161
Sep 2017121047.523.09$5,750
Aug 2017247045.373.00$11,206
Jul 2017118043.873.09$5,177
Jun 2017244042.493.09$10,368
May 2017122045.373.26$5,535
Apr 2017123047.933.21$5,895
Mar 2017240046.772.98$11,225
Feb 2017122050.452.95$6,155
Jan 2017123049.413.42$6,077
Dec 2016236048.763.72$11,507
Nov 2016217042.492.64$9,220
Oct 2016125046.193.09$5,774
Sep 2016121041.553.10$5,028
Aug 2016239041.442.92$9,904
Jul 2016238041.622.92$9,906
Jun 2016122045.352.69$5,533
May 2016241042.521.99$10,247
Apr 2016126036.561.99$4,607
Mar 2016242033.011.79$7,988
Feb 2016120026.472.06$3,176
Jan 2016124027.352.36$3,391
Dec 2015229032.362.00$7,410
Nov 2015113038.792.17$4,383
Oct 2015239043.552.43$10,408
Sep 2015244042.992.76$10,490
Aug 2015112040.162.87$4,498
Jul 2015120048.152.95$5,778
Jun 2015240056.152.88$13,476
May 2015123055.212.96$6,791
Apr 2015230049.822.71$11,459
Mar 2015122042.892.93$5,233
Feb 2015231044.662.98$10,316
Jan 2015111043.433.10$4,821
Dec 2014242054.693.59$13,235
Nov 2014129070.464.25$9,089
Oct 2014119078.303.90$9,318
Sep 2014243086.164.05$20,937
Aug 2014232089.394.04$20,738
Jul 2014128096.564.18$12,360
Jun 2014247098.164.74$24,246
May 2014120094.734.73$11,368
Apr 2014234095.944.81$22,450
Mar 2014249095.895.06$23,877
Feb 2014121097.406.19$11,785
Jan 2014241090.404.86$21,786
Dec 2013251091.824.35$23,047
Nov 2013234088.853.74$20,791
Oct 2013120097.423.78$11,690
Sep 20132440104.113.72$25,403
Aug 20132260104.253.52$23,561
Jul 20132380102.523.72$24,400
Jun 2013252094.403.93$23,789
May 2013249094.834.15$23,613
Apr 2013249093.964.28$23,396
Mar 2013255093.623.91$23,873
Feb 2013360091.233.42$32,843
Jan 2013249091.603.42$22,808
Dec 2012130086.773.42$11,280
Nov 2012243086.953.62$21,129
Oct 2012250089.383.40$22,345
Sep 2012253094.672.92$23,952
Aug 2012238092.662.91$22,053
Jul 2012232085.133.02$19,750
Jun 2012248079.822.52$19,795
May 2012235091.612.49$21,528
Apr 20122310101.652.00$23,481
Mar 20122500105.052.22$26,263
Feb 20122310101.102.57$23,354
Jan 2012123098.092.73$12,065
Dec 2011241096.873.24$23,346
Nov 2011242095.723.31$23,164
Oct 2011233084.983.65$19,800
Sep 2011237083.623.99$19,818
Aug 2011245083.404.15$20,433
Jul 2011247094.144.52$23,253
Jun 2011356092.904.64$33,072
May 2011226098.134.40$22,177
Apr 20112430105.964.33$25,748
Mar 2011245096.364.06$23,608
Feb 2011244085.644.18$20,896
Jan 2011247086.504.59$21,366
Dec 2010251085.734.35$21,518
Nov 2010243080.843.80$19,644
Oct 2010242078.103.51$18,900
Sep 2010233072.633.98$16,923
Aug 2010236073.684.42$17,388
Jul 2010246072.554.74$17,847
Jun 2010240070.364.91$16,886
May 2010239071.124.24$16,998
Apr 2010237081.694.12$19,361
Mar 2010223078.394.39$17,481
Feb 2010125073.585.44$9,198
Jan 2010363074.365.96$26,993
Dec 2009110071.445.48$7,858
Nov 2009247074.593.75$18,424
Oct 2009365072.544.11$26,477
Sep 2009238065.543.06$15,599
Aug 2009241067.423.22$16,248
Jul 2009241061.133.46$14,732
Jun 2009244066.163.90$16,143
May 2009358054.743.93$19,597
Apr 2009244046.773.59$11,412
Mar 2009237042.144.06$9,987
Feb 2009243032.814.63$7,973
Jan 2009370035.865.37$13,268
Dec 2008240037.105.98$8,904
Nov 2008238055.496.86$13,207
Oct 2008241075.246.92$18,133
Sep 20083600101.767.88$36,634
Aug 20082360114.228.48$26,956
Jul 20082420131.0811.39$31,721
Jun 20083600131.3313.03$47,279
May 20082420123.1711.57$29,807
Apr 20082370110.3110.45$26,143
Mar 20081200101.909.66$12,228
Feb 2008242092.538.77$22,392
Jan 2008242090.388.21$21,872
Dec 2007244088.337.30$21,553
Nov 2007353091.677.29$32,360
Oct 2007244082.856.92$20,215
Sep 2007248075.846.24$18,808
Aug 2007360069.066.39$24,862
Jul 2007238070.906.39$16,874
Jun 2007363062.007.55$22,506
May 2007244058.747.85$14,333
Apr 2007246059.617.81$14,664
Mar 2007248056.927.30$14,116
Feb 2007243055.108.22$13,389
Jan 2007366050.306.73$18,410
Dec 2006247056.656.92$13,993
Nov 2006250054.207.62$13,550
Oct 2006254054.906.01$13,945
Sep 2006237060.085.04$14,239
Aug 2006113068.717.34$7,764
Jul 2006121069.376.34$8,394
Jun 2006253066.286.38$16,769
May 2006248066.016.42$16,370
Apr 2006125064.397.36$8,049
Mar 2006251056.707.08$14,232
Feb 2006243057.597.75$13,994
Jan 2006248060.598.93$15,026
Dec 2005244054.9413.42$13,405
Nov 2005244054.6910.59$13,344
Oct 2005234058.3413.80$13,652
Sep 2005241061.4512.08$14,809
Aug 2005249061.519.80$15,316
Jul 2005253055.697.84$14,090
Jun 2005236052.337.38$12,350
May 2005250045.226.65$11,305
Apr 2005244049.207.36$12,005
Mar 2005243050.377.15$12,240
Feb 2005251045.226.31$11,350
Jan 2005246043.166.32$10,617
Dec 2004367039.866.75$14,629
Nov 2004250045.286.33$11,320
Oct 2004248049.706.52$12,326
Sep 2004249043.245.28$10,767
Aug 2004376042.375.55$15,931
Jul 2004249038.286.08$9,532
Jun 2004238036.106.43$8,592
May 2004246037.486.49$9,220
Apr 2004248034.475.86$8,549
Mar 2004247034.365.53$8,487
Feb 2004388032.455.51$12,591
Jan 2004248032.036.30$7,943
Dec 2003258030.266.30$7,807
Nov 2003250028.804.60$7,200
Oct 2003246028.174.76$6,930
Sep 2003246026.314.75$6,472
Aug 2003249029.765.13$7,410
Jul 2003374029.415.17$10,999
Jun 2003244028.565.98$6,969
May 2003250026.595.97$6,648
Apr 2003177026.675.41$4,721
Mar 2003253031.146.10$7,878
Feb 2003255033.487.93$8,537
Jan 2003213030.315.58$6,456
Dec 2002222026.914.85$5,974
Nov 2002309024.664.14$7,620
Oct 2002107026.464.23$2,831
Sep 2002219027.443.64$6,009
Aug 2002213025.963.16$5,529
Jul 2002314024.583.06$7,718
Jun 2002213023.733.34$5,054
May 2002219024.663.58$5,401
Apr 2002213023.653.51$5,037
Mar 2002212022.003.10$4,664
Feb 2002214018.222.38$3,899
Jan 2002209017.172.38$3,589
Dec 2001323016.932.36$5,468
Nov 2001216018.072.41$3,903
Oct 2001200019.782.53$3,956
Sep 2001215024.262.25$5,216
Aug 2001215024.873.05$5,347
Jul 2001222023.933.20$5,312
Jun 2001214024.563.82$5,256
May 2001208025.524.31$5,308
Apr 2001103024.685.34$2,542
Mar 2001209024.545.38$5,129
Feb 2001213027.755.77$5,911
Jan 2001106027.478.40$2,912
Dec 2000213026.889.12$5,725
Nov 200090032.215.66$2,899
Oct 2000179031.235.15$5,590
Sep 2000174031.875.19$5,545
Aug 2000176029.644.54$5,217
Jul 200086028.534.09$2,454
Jun 2000176029.304.40$5,157
May 2000178027.263.68$4,852
Apr 2000180024.513.12$4,412
Mar 20000028.422.86$0
Feb 2000179027.622.73$4,944
Jan 2000146025.272.48$3,689
Dec 19990024.282.42$0
Nov 1999189023.192.43$4,383
Oct 1999176020.982.80$3,692
Sep 19990021.752.62$0
Aug 1999185019.262.88$3,563
Jul 19990017.892.37$0
Jun 1999183015.942.36$2,917
May 1999183015.792.32$2,890
Apr 19990015.102.21$0
Mar 1999169012.471.84$2,107
Feb 1999009.981.82$0
Jan 1999177010.381.90$1,837
Dec 1998009.201.77$0
Nov 1998103010.892.19$1,122
Oct 1998179012.421.97$2,223
Sep 1998179012.592.08$2,254
Aug 19980011.301.91$0
Jul 19980011.742.24$0
Jun 1998175011.242.24$1,967
May 19980012.622.21$0
Apr 1998179013.042.51$2,334
Mar 19980012.802.31$0
Feb 1998181013.952.30$2,525
Jan 19980014.702.15$0
Dec 1997181016.322.41$2,954
Nov 19970018.193.09$0
Oct 1997182019.253.15$3,504
Sep 19970017.742.95$0
Aug 19970017.862.55$0
Jul 19970017.582.25$0
Jun 19970017.242.26$0
May 1997179018.972.31$3,396
Apr 19970017.882.08$0
Mar 1997180018.951.94$3,411
Feb 19970020.492.21$0
Jan 19970023.483.54$0
Dec 1996182023.32$4,244
Nov 19960021.97$0
Oct 19960023.31$0
Sep 1996182022.22$4,044
Aug 19960020.26$0
Jul 19960019.55$0
Jun 1996178018.73$3,334
May 19960019.43$0
Apr 1996178021.51$3,829
Mar 19960019.38$0
Feb 19960016.98$0
Jan 1996180017.07$3,073
Dec 19950017.19$0
Nov 19950016.00$0
Oct 1995181015.43$2,793
Sep 19950016.18$0
Aug 1995178015.92$2,834
Jul 19950015.24$0
Jun 19950016.41$0
May 1995178017.56$3,126
Apr 19950017.73$0
Mar 1995179016.44$2,943
Feb 19950016.58$0
Jan 1995181015.92$2,882
Dec 19940015.03$0
Nov 19940015.90$0
Oct 1994184015.58$2,867
Sep 19940015.29$0
Aug 1994174116.13$2,807
Jul 19940117.56$0
Jun 1994175117.09$2,991
May 19940115.88$0
Apr 1994181114.14$2,559
Mar 19940112.46$0
Feb 1994173112.50$2,163
Jan 19940112.66$0
Dec 19930112.33$0
Nov 1993174114.49$2,521
Oct 19930115.85$0
Sep 1993173115.03$2,600
Aug 19930115.66$0
Jul 1993173115.46$2,675
Jun 19930116.79$0
May 1993173117.68$3,059
Apr 19930118.05$0
Mar 19930118.14$0
Feb 1993175117.90$3,133
Jan 19930116.93$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                  154 bbl  × $106.41 =    $16,387
Casinghead gas         0 Mcf  × $  3.05 =         $0

────────────────────────────────────────────────────
Month total                                  $16,387

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. 8A/O/4606 is the state's own key, not one this site invented.