DEAN BROS.

Operated by RATTLESNAKE MOUNTAIN OIL LLC (P-5 694737) in the RATTLESNAKE MOUNTAIN (LAKE SAND) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 3663District 7BField 74835666OilCasinghead gasSaveExport
Value, all time
$938 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 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 2 leases and 3 wells, and the rule below applies to all of them.

Discovered
1951-05-04
as the register files it
Field class
Oil
the register's own label
Between wells
933 ft
minimum
From a lease line
467 ft
minimum

A drilling unit in this field needs at least 20 acres.

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
OilDisposition7,253 bbl$514,971
Casinghead gasProduction101,443 Mcf$422,754
Total$937,725

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 32.6172, -99.2358. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.2 miles.

32.61723, -99.23584 · 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
50.0%
1 of 2 wells
Median depth
2,597 ft
2 wells filed one
Completion to plug
39.3 years
median over 1 well

What the state filed about each well

On the RRC proration schedule
150.0%
A plug date is filed
150.0%
BothOn the schedule and plugged. Neither fact cancels the other.
150.0%
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

Between 950 and 4,243 ft, median 2,597 ft, over the 2 wells that filed a depth.

Completions filed
Jul 1983 – Jan 2009
2 of 2 wells
Plug dates filed
Oct 2022
1 of 2 wells; 1 filed none

Last completion to plug: a median of 39.3 years across the 1 well that filed both dates, with the middle half between 39.3 years and 39.3 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

2 wells

42-417078312950 ftJan 2009
42-4178197114,243 ftJul 1983Oct 2022Yes

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 20225130104.226.84$5,520
Mar 2022031108.885.08$157
Feb 202203491.054.86$165
Jan 2022511481.844.54$4,237
Dec 202101671.323.90$62
Nov 20210877.435.24$42
Oct 202106079.795.71$343
Sep 2021325569.865.35$2,530
Aug 202106366.024.22$266
Jul 2021425370.783.98$3,184
Jun 2021011069.493.38$372
May 202107263.483.02$217
Apr 20218012360.362.76$5,168
Mar 202108361.302.72$226
Feb 202104857.805.55$266
Jan 202102350.412.81$65
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 2020010914.751.80$197
Mar 2020014730.341.86$273
Feb 20203913049.881.98$2,203
Jan 202006957.252.09$145
Dec 201904359.012.30$99
Nov 201905255.302.75$143
Oct 201905053.472.42$121
Sep 201904255.052.66$112
Aug 2019295053.112.30$1,655
Jul 201905356.272.46$130
Jun 201905052.782.49$125
May 201905358.482.74$145
Apr 2019384262.632.75$2,495
Mar 201901556.803.06$46
Feb 201901850.852.79$50
Jan 201901646.033.23$52
Dec 2018023446.594.19$979
Nov 20183522352.934.24$2,797
Oct 2018021861.443.40$741
Sep 2018021859.543.11$678
Aug 2018023459.403.07$718
Jul 201806765.142.93$196
Jun 2018152960.183.08$992
May 2018279765.382.90$2,047
Apr 201803163.842.90$90
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 201729047.523.09$1,378
Aug 2017015445.373.00$463
Jul 2017061243.873.09$1,889
Jun 2017064442.493.09$1,988
May 2017071445.373.26$2,330
Apr 2017019247.933.21$617
Mar 2017364146.772.98$1,806
Feb 201704150.452.95$121
Jan 201708549.413.42$291
Dec 2016039248.763.72$1,459
Nov 2016078242.492.64$2,068
Oct 20165177046.193.09$4,735
Sep 2016077141.553.10$2,391
Aug 20164692241.442.92$4,602
Jul 20168345041.622.92$4,770
Jun 2016064745.352.69$1,738
May 20167868742.521.99$4,684
Apr 20167766936.561.99$4,147
Mar 2016067033.011.79$1,202
Feb 2016058626.472.06$1,209
Jan 20167871827.352.36$3,831
Dec 2015073232.362.00$1,465
Nov 2015064838.792.17$1,404
Oct 20153572643.552.43$3,286
Sep 20155669942.992.76$4,336
Aug 2015075140.162.87$2,157
Jul 20153176848.152.95$3,754
Jun 20157373556.152.88$6,218
May 2015062755.212.96$1,853
Apr 2015046449.822.71$1,256
Mar 20153573942.892.93$3,670
Feb 20155573644.662.98$4,647
Jan 20151883743.433.10$3,377
Dec 20147790454.693.59$7,458
Nov 2014065970.464.25$2,802
Oct 20148272978.303.90$9,264
Sep 2014080286.164.05$3,244
Aug 20148221489.394.04$8,194
Jul 2014082196.564.18$3,431
Jun 20144779198.164.74$8,360
May 2014079994.734.73$3,777
Apr 20147978195.944.81$11,335
Mar 2014085995.895.06$4,344
Feb 20147777197.406.19$12,274
Jan 2014086390.404.86$4,195
Dec 20134774191.824.35$7,542
Nov 20134380888.853.74$6,841
Oct 20138084697.423.78$10,991
Sep 20130842104.113.72$3,130
Aug 201385898104.253.52$12,025
Jul 201385882102.523.72$11,993
Jun 2013086794.403.93$3,410
May 20138490094.834.15$11,700
Apr 2013084993.964.28$3,636
Mar 20138688493.623.91$11,510
Feb 2013080091.233.42$2,736
Jan 20138691291.603.42$10,997
Dec 2012091886.773.42$3,140
Nov 20128590086.953.62$10,653
Oct 20128734389.383.40$8,942
Sep 2012056794.672.92$1,655
Aug 2012096192.662.91$2,795
Jul 2012851,00485.133.02$10,269
Jun 20128398679.822.52$9,109
May 201201,02091.612.49$2,538
Apr 201282831101.652.00$9,995
Mar 20120894105.052.22$1,987
Feb 201288887101.102.57$11,177
Jan 2012092998.092.73$2,540
Dec 20118294696.873.24$11,008
Nov 20118893295.723.31$11,509
Oct 2011096184.983.65$3,506
Sep 20118495783.623.99$10,838
Aug 2011871,01083.404.15$11,447
Jul 2011098094.144.52$4,427
Jun 20118494792.904.64$12,198
May 201101,08798.134.40$4,788
Apr 2011861,103105.964.33$13,892
Mar 2011811,01096.364.06$11,903
Feb 2011085085.644.18$3,553
Jan 20111141,21086.504.59$15,413
Dec 20101181,09685.734.35$14,881
Nov 20101261,15980.843.80$14,585
Oct 201001,24078.103.51$4,351
Sep 20101761,20072.633.98$17,558
Aug 20101291,24073.684.42$14,985
Jul 20103411,98672.554.74$34,146
Jun 20101731,42370.364.91$19,160
May 201001,21371.124.24$5,137
Apr 201001,15881.694.12$4,774
Mar 20101741,05978.394.39$18,287
Feb 201001,01773.585.44$5,535
Jan 20101701,09474.365.96$19,166
Dec 200901,11971.445.48$6,136
Nov 200901,14474.593.75$4,292
Oct 20091641,13672.544.11$16,566
Sep 200901,06365.543.06$3,258
Aug 20091571,06367.423.22$14,006
Jul 200901,11561.133.46$3,863
Jun 20091741,12766.163.90$15,902
May 200901,08254.743.93$4,248
Apr 20091631,05446.773.59$11,405
Mar 2009083342.144.06$3,381
Feb 200917266732.814.63$8,734
Jan 2009068535.865.37$3,679
Dec 200817470737.105.98$10,681
Nov 2008070455.496.86$4,830
Oct 2008077775.246.92$5,378
Sep 2008167895101.767.88$24,044
Aug 20080895114.228.48$7,592
Jul 2008174927131.0811.39$33,366
Jun 200801,082131.3313.03$14,101
May 20081741,141123.1711.57$34,638
Apr 200800110.3110.45$0
Mar 2008047101.909.66$454
Feb 20080092.538.77$0
Jan 20080090.388.21$0
Dec 20070088.337.30$0
Nov 20070091.677.29$0
Oct 20070082.856.92$0
Sep 20070075.846.24$0
Aug 20070069.066.39$0
Jul 20070070.906.39$0
Jun 20070062.007.55$0
May 20070058.747.85$0
Apr 20070059.617.81$0
Mar 20070056.927.30$0
Feb 20070055.108.22$0
Jan 20070050.306.73$0
Dec 20060056.656.92$0
Nov 20060054.207.62$0
Oct 20060054.906.01$0
Sep 20060060.085.04$0
Aug 20060068.717.34$0
Jul 20060069.376.34$0
Jun 20060066.286.38$0
May 20060066.016.42$0
Apr 20060064.397.36$0
Mar 20060056.707.08$0
Feb 20060057.597.75$0
Jan 20060060.598.93$0
Dec 20050054.9413.42$0
Nov 20050054.6910.59$0
Oct 20050058.3413.80$0
Sep 200508661.4512.08$1,039
Aug 20050061.519.80$0
Jul 20050055.697.84$0
Jun 20050352.337.38$22
May 20050045.226.65$0
Apr 20050049.207.36$0
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 200406242.375.55$344
Jul 200409738.286.08$590
Jun 2004010136.106.43$650
May 2004012037.486.49$779
Apr 200408534.475.86$498
Mar 200408834.365.53$487
Feb 20040032.455.51$0
Jan 2004021132.036.30$1,329
Dec 200317254530.266.30$8,639
Nov 2003040528.804.60$1,861
Oct 200317452528.174.76$7,400
Sep 200317454226.314.75$7,152
Aug 200317064329.765.13$8,358
Jul 200316120529.415.17$5,795
Jun 20030028.565.98$0
May 20030026.595.97$0
Apr 20030026.675.41$0
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 20020023.733.34$0
May 20020024.663.58$0
Apr 20020023.653.51$0
Mar 20020022.003.10$0
Feb 20020018.222.38$0
Jan 20020017.172.38$0
Dec 20010016.932.36$0
Nov 20010018.072.41$0
Oct 20010019.782.53$0
Sep 20010024.262.25$0
Aug 20010024.873.05$0
Jul 20010023.933.20$0
Jun 20010024.563.82$0
May 20010025.524.31$0
Apr 20010024.685.34$0
Mar 20010024.545.38$0
Feb 20010027.755.77$0
Jan 20010027.478.40$0
Dec 20000026.889.12$0
Nov 20000032.215.66$0
Oct 20000031.235.15$0
Sep 20000031.875.19$0
Aug 20000029.644.54$0
Jul 20000028.534.09$0
Jun 20000029.304.40$0
May 20000027.263.68$0
Apr 20000024.513.12$0
Mar 20000028.422.86$0
Feb 20000027.622.73$0
Jan 20000025.272.48$0
Dec 19990024.282.42$0
Nov 19990023.192.43$0
Oct 19990020.982.80$0
Sep 19990021.752.62$0
Aug 19990019.262.88$0
Jul 19990017.892.37$0
Jun 19990015.942.36$0
May 19990015.792.32$0
Apr 19990015.102.21$0
Mar 19990012.471.84$0
Feb 1999009.981.82$0
Jan 19990010.381.90$0
Dec 1998009.201.77$0
Nov 19980010.892.19$0
Oct 19980012.421.97$0
Sep 19980012.592.08$0
Aug 19980011.301.91$0
Jul 19980011.742.24$0
Jun 19980011.242.24$0
May 19980012.622.21$0
Apr 19980013.042.51$0
Mar 19980012.802.31$0
Feb 19980013.952.30$0
Jan 19980014.702.15$0
Dec 19970016.322.41$0
Nov 19970018.193.09$0
Oct 19970019.253.15$0
Sep 19970017.742.95$0
Aug 19970017.862.55$0
Jul 19970017.582.25$0
Jun 19970017.242.26$0
May 19970018.972.31$0
Apr 19970017.882.08$0
Mar 19970018.951.94$0
Feb 19970020.492.21$0
Jan 19970023.483.54$0
Dec 19960023.32$0
Nov 19960021.97$0
Oct 19960023.31$0
Sep 19960022.22$0
Aug 19960020.26$0
Jul 19960019.55$0
Jun 19960018.73$0
May 19960019.43$0
Apr 19960021.51$0
Mar 19960019.38$0
Feb 19960016.98$0
Jan 19960017.07$0
Dec 19950017.19$0
Nov 19950016.00$0
Oct 19950015.43$0
Sep 19950016.18$0
Aug 19950015.92$0
Jul 19950015.24$0
Jun 19950016.41$0
May 19950017.56$0
Apr 19950017.73$0
Mar 19950016.44$0
Feb 19950016.58$0
Jan 19950015.92$0
Dec 19940015.03$0
Nov 19940015.90$0
Oct 19940015.58$0
Sep 19940015.29$0
Aug 19940016.13$0
Jul 19940017.56$0
Jun 19940017.09$0
May 19940015.88$0
Apr 19940014.14$0
Mar 19940012.46$0
Feb 19940012.50$0
Jan 19940012.66$0
Dec 19930012.33$0
Nov 19930014.49$0
Oct 19930015.85$0
Sep 19930015.03$0
Aug 19930015.66$0
Jul 19930015.46$0
Jun 19930016.79$0
May 19930017.68$0
Apr 19930018.05$0
Mar 19930018.14$0
Feb 19930017.90$0
Jan 19930016.93$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.

Apr 2022 — as filed, then multipliedworked
Oil                   51 bbl  × $104.22 =     $5,315
Casinghead gas        30 Mcf  × $  6.84 =       $205

────────────────────────────────────────────────────
Month total                                   $5,520

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. 7B/O/3663 is the state's own key, not one this site invented.