SAUZ RANCH MULATOS PASTURE

Operated by CHESTNUT EXPLOR. AND PROD., INC. (P-5 147847) in the WILLAMAR field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 3366District 04Field 97491001NGPA filingOilCasinghead gasSaveExport
Value, all time
$27.0 M
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 23 leases and 100 wells, and the rule below applies to all of them.

Discovered
1940-11-14
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 40 acres.

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
NGPA1none

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
OilDisposition523,921 bbl$25,537,663
Casinghead gasProduction309,559 Mcf$1,426,370
Total$26,964,033

17,690 Mcf of this lease's gas, across 33 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 (28)

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 26.4279, -97.5422. A lease has no coordinate of its own — that point is the mean of its wells, and they span 4.0 miles.

26.43420, -97.54571 · 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
78.6%
22 of 28 wells
With a plug date
67.9%
19 of 28 wells
Median depth
7,742 ft
24 wells filed one
Completion to plug
39.3 years
median over 9 wells

What the state filed about each well

On the RRC proration schedule
2278.6%
A plug date is filed
1967.9%
BothOn the schedule and plugged. Neither fact cancels the other.
1967.9%
NeitherNo plug date, and not on the schedule.
621.4%

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, 24 of 28 wells. Median 7,742 ft, with the middle half between 7,720 and 7,756 ft; the shallowest is 6,393 ft and the deepest 8,100 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, 13 of 28 wells, Feb 1945 – Jul 1998. This is the LAST completion filed on each wellbore, not the first — a well recompleted in 2019 counts once, in the 2010s.

Completions filed
Feb 1945 – Jul 1998
13 of 28 wells; 15 filed none
Plug dates filed
Sep 1988 – Oct 2024
19 of 28 wells; 9 filed none

Last completion to plug: a median of 39.3 years across the 9 wells that filed both dates, with the middle half between 13.8 years and 41.2 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

28 wells

42-48900200547,743 ftSep 1988Yes
42-48900223637,740 ftFeb 1993Yes
42-48900224467,721 ftSep 1993Yes
42-4890022597,735 ftSep 1993Yes
42-48900243577,755 ftAug 2004Yes
42-48900244346,393 ftAug 2004Yes
42-48900245137,725 ftSep 1993Yes
42-4890027387,720 ftYes
42-48900281147,720 ftJul 1994Yes
42-48900309157,720 ftJul 1995Yes
42-489300721577,743 ftOct 1988Yes
42-4898005265Yes
42-4890022112
42-4890022224
42-4890027435
42-48900169957,752 ftJul 1998May 2009Yes
42-48900330197,726 ftJan 1998Oct 2024Yes
42-48900218707,960 ftJan 1987Feb 1991Yes
42-48900306477,700 ftJul 1985Oct 2024Yes
42-48900202787,847 ftMar 1984Oct 2024Yes
42-489306321648,100 ftOct 1981Yes
42-489306401697,750 ftOct 1981Dec 2022Yes
42-489002191167,744 ftApr 1981Jan 1995Yes
42-489300661567,720 ftDec 1971
42-489300671557,715 ftDec 1971
42-489300281527,855 ftAug 1970
42-48900279647,760 ftJun 1969Aug 2022Yes
42-4890027277,951 ftFeb 1945Jul 1994Yes

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 20171,155045.373.26$52,402
Apr 2017940047.933.21$45,054
Mar 20171,216046.772.98$56,872
Feb 2017738050.452.95$37,232
Jan 2017755049.413.42$37,305
Dec 2016689048.763.72$33,596
Nov 2016617042.492.64$26,216
Oct 2016524046.193.09$24,204
Sep 2016176041.553.10$7,313
Aug 2016494041.442.92$20,471
Jul 2016386041.622.92$16,065
Jun 2016455045.352.69$20,634
May 2016491042.521.99$20,877
Apr 2016711036.561.99$25,994
Mar 2016866033.011.79$28,587
Feb 2016219026.472.06$5,797
Jan 2016769027.352.36$21,032
Dec 2015785032.362.00$25,403
Nov 2015878038.792.17$34,058
Oct 20151,303043.552.43$56,746
Sep 20151,597042.992.76$68,655
Aug 20151,457040.162.87$58,513
Jul 20151,713048.152.95$82,481
Jun 20151,798056.152.88$100,958
May 20151,922055.212.96$106,114
Apr 20151,853049.822.71$92,316
Mar 20152,300042.892.93$98,647
Feb 20151,973044.662.98$88,114
Jan 20152,162043.433.10$93,896
Dec 20141,740054.693.59$95,161
Nov 20141,719070.464.25$121,121
Oct 20141,946078.303.90$152,372
Sep 20141,544086.164.05$133,031
Aug 20141,583089.394.04$141,504
Jul 20141,7131,54196.564.18$171,848
Jun 20141,7292,85798.164.74$183,252
May 20141,7201,04294.734.73$167,861
Apr 20141,53235195.944.81$148,668
Mar 20141,6121,94195.895.06$164,390
Feb 20141,4931,84997.406.19$156,867
Jan 20141,5222,41790.404.86$149,337
Dec 20131,6532,77691.824.35$163,867
Nov 20131,4814,70788.853.74$149,183
Oct 20132,2563,34397.423.78$232,414
Sep 20131,8614,302104.113.72$209,742
Aug 20131,7662,469104.253.52$192,803
Jul 20131,8361,670102.523.72$194,435
Jun 20131,6304,31594.403.93$170,845
May 20131,5503,19694.834.15$160,247
Apr 20131,8163,51393.964.28$185,676
Mar 20131,7463,50493.623.91$177,171
Feb 20131,5731,99591.233.42$150,328
Jan 20131,8111,96491.603.42$172,604
Dec 20121,58399286.773.42$140,750
Nov 20121,30461486.953.62$115,609
Oct 201286642789.383.40$78,855
Sep 20121,07992394.672.92$104,843
Aug 20121,05887392.662.91$100,573
Jul 20121,54056885.133.02$132,816
Jun 20121,16766279.822.52$94,818
May 20121,47748691.612.49$136,517
Apr 20121,617484101.652.00$165,335
Mar 20121,550656105.052.22$164,285
Feb 20121,651880101.102.57$169,178
Jan 20121,69686098.092.73$168,712
Dec 20111,49248696.873.24$146,105
Nov 20111,58285495.723.31$154,257
Oct 20111,5621,14684.983.65$136,920
Sep 20111,45451383.623.99$123,628
Aug 20111,8071,22083.404.15$155,766
Jul 20111,9541,49594.144.52$190,703
Jun 20112,0352,66692.904.64$201,421
May 20111,8451,63698.134.40$188,256
Apr 20112,1251,013105.964.33$229,555
Mar 20112,00784496.364.06$196,819
Feb 20111,81739485.644.18$157,255
Jan 20112,1001,62786.504.59$189,116
Dec 20101,9551,46085.734.35$173,950
Nov 20101,7592,00980.843.80$149,822
Oct 20101,89487378.103.51$150,985
Sep 20101,51299672.633.98$113,780
Aug 20101,88199973.684.42$143,007
Jul 20101,5451,10972.554.74$117,343
Jun 20101,5941,00970.364.91$117,108
May 20101,9591,37371.124.24$145,139
Apr 20102,8251,31481.694.12$236,191
Mar 20101,8811,51478.394.39$154,096
Feb 20102,8041,13173.585.44$212,474
Jan 20102,6711,14574.365.96$205,444
Dec 20092,67766371.445.48$194,881
Nov 20091,9851,04974.593.75$151,996
Oct 20092,24184072.544.11$166,015
Sep 20091,7131,29765.543.06$116,245
Aug 20092,2271,08467.423.22$153,633
Jul 20091,91395561.133.46$120,250
Jun 20092,4761,34266.163.90$169,039
May 20092,2791,69254.743.93$131,395
Apr 20091,6271,06546.773.59$79,915
Mar 20092,4061,86342.144.06$108,951
Feb 20091,4401,33532.814.63$53,431
Jan 20092,7471,54135.865.37$106,784
Dec 20083,1692,03737.105.98$129,745
Nov 20082,1612,41555.496.86$136,482
Oct 20082,3342,17875.246.92$190,686
Sep 20082,4052,457101.767.88$264,087
Aug 20081,2061,781114.228.48$152,858
Jul 20082,1810131.0811.39$285,885
Jun 20081,9031,055131.3313.03$263,670
May 20082,4071,191123.1711.57$310,255
Apr 20082,6321,949110.3110.45$310,712
Mar 20082,9202,190101.909.66$318,712
Feb 20082,6282,58392.538.77$265,823
Jan 20082,6161,56290.388.21$249,251
Dec 20072,3092,02888.337.30$218,762
Nov 20072,2501,33491.677.29$215,985
Oct 20072,5741,44282.856.92$223,237
Sep 20071,6291,03975.846.24$130,031
Aug 20072,2331,44669.066.39$163,448
Jul 20071,97150270.906.39$142,951
Jun 20072,17925762.007.55$137,038
May 20072,423058.747.85$142,327
Apr 20071,782059.617.81$106,225
Mar 20072,84135556.927.30$164,302
Feb 20072,025055.108.22$111,578
Jan 20073,035050.306.73$152,661
Dec 20061,904056.656.92$107,862
Nov 20062,153054.207.62$116,693
Oct 20062,848054.906.01$156,355
Sep 20062,327060.085.04$139,806
Aug 20062,28970168.717.34$162,422
Jul 20062,54571769.376.34$181,094
Jun 20062,462066.286.38$163,181
May 20062,30463466.016.42$156,160
Apr 20062,91244064.397.36$190,742
Mar 20062,86630856.707.08$164,684
Feb 20062,7051,01457.597.75$163,641
Jan 20062,4612,46760.598.93$171,150
Dec 20052,7413,45954.9413.42$196,994
Nov 20051,9801,37854.6910.59$122,877
Oct 20052,12091458.3413.80$136,290
Sep 20051,76672761.4512.08$117,302
Aug 20052,4292,44261.519.80$173,332
Jul 20052,1761,87755.697.84$135,904
Jun 20052,4011,61052.337.38$137,528
May 20052,43193745.226.65$116,162
Apr 20052,0441,52649.207.36$111,797
Mar 20051,5792,66050.377.15$98,566
Feb 20052,1432,49645.226.31$112,661
Jan 20052,6721,75443.166.32$126,413
Dec 20041,89698739.866.75$82,238
Nov 20041,7791,73245.286.33$91,517
Oct 20041,9491,62849.706.52$107,472
Sep 20041,8001,71043.245.28$86,867
Aug 20042,3911,19642.375.55$107,945
Jul 20042,0172,15538.286.08$90,322
Jun 20042,5532,77236.106.43$109,996
May 20041,7121,91137.486.49$76,577
Apr 20042,1182,12534.475.86$85,457
Mar 20041,9071,60934.365.53$74,423
Feb 20041,7013,38532.455.51$73,848
Jan 20042,6412,14532.036.30$98,104
Dec 20031,4152,59530.266.30$59,171
Nov 20032,2621,13328.804.60$70,352
Oct 20032,0161,85028.174.76$65,596
Sep 20031,4521,72226.314.75$46,381
Aug 20032,206029.765.13$65,651
Jul 20031,740029.415.17$51,173
Jun 20031,856028.565.98$53,007
May 20031,981026.595.97$52,675
Apr 20032,264026.675.41$60,381
Mar 20031,770031.146.10$55,118
Feb 20031,8242,46733.487.93$80,621
Jan 20032,4583,76530.315.58$95,518
Dec 20023,0441,51626.914.85$89,272
Nov 20021,9312,69824.664.14$58,780
Oct 20022,8872,45926.464.23$86,789
Sep 20023,5211,07227.443.64$100,513
Aug 20022,0593,08225.963.16$63,204
Jul 20022,5833,00824.583.06$72,700
Jun 20022,0271,25723.733.34$52,297
May 20022,6671,00524.663.58$69,370
Apr 20022,1751,62523.653.51$57,146
Mar 20022,2361,77222.003.10$54,690
Feb 20022,2863,40218.222.38$49,733
Jan 20022,9702,45317.172.38$56,822
Dec 20012,6683,73516.932.36$54,000
Nov 20012,6583,23918.072.41$55,822
Oct 20012,3891,95719.782.53$52,203
Sep 20012,33995924.262.25$58,903
Aug 20012,3013,65024.873.05$68,370
Jul 20012,4892,82823.933.20$68,603
Jun 20012,0401,73724.563.82$56,745
May 20012,2011,22025.524.31$61,424
Apr 20012,80486824.685.34$73,834
Mar 20012,84846324.545.38$72,379
Feb 20012,52033127.755.77$71,839
Jan 20011,53850127.478.40$46,457
Dec 20002,26276426.889.12$67,772
Nov 20001,79661232.215.66$61,312
Oct 20003,0651,91031.235.15$105,548
Sep 20002,5681,22731.875.19$88,206
Aug 20002,7191,92129.644.54$89,314
Jul 20002,2122,58228.534.09$73,668
Jun 20002,8951,40429.304.40$90,997
May 20002,4153,09127.263.68$77,207
Apr 20002,6561,91024.513.12$71,050
Mar 20002,9722,37728.422.86$91,262
Feb 20002,8422,18827.622.73$84,462
Jan 20002,5213,00625.272.48$71,162
Dec 19993,1393,60624.282.42$84,955
Nov 19993,0781,05723.192.43$73,952
Oct 19993,1101,62720.982.80$69,809
Sep 19992,9111,70121.752.62$67,769
Aug 19992,1101,10119.262.88$43,805
Jul 19992,5992,43717.892.37$52,278
Jun 19992,116015.942.36$33,729
May 19992,260015.792.32$35,685
Apr 19991,845015.102.21$27,860
Mar 19993,155012.471.84$39,343
Feb 19992,00909.981.82$20,050
Jan 19991,964010.381.90$20,386
Dec 19981,90509.201.77$17,526
Nov 19982,359010.892.19$25,690
Oct 19981,746012.421.97$21,685
Sep 19981,545012.592.08$19,452
Aug 19982,040011.301.91$23,052
Jul 19982,587011.742.24$30,371
Jun 19982,150011.242.24$24,166
May 19982,835012.622.21$35,778
Apr 19982,8262,05813.042.51$42,007
Mar 19983,303012.802.31$42,278
Feb 19982,9202,34713.952.30$46,130
Jan 19982,782014.702.15$40,895
Dec 19972,764016.322.41$45,108
Nov 19973,318018.193.09$60,354
Oct 19973,906019.253.15$75,191
Sep 19973,532017.742.95$62,658
Aug 19972,7672,44617.862.55$55,668
Jul 19973,1111,92817.582.25$59,023
Jun 19972,5662,01817.242.26$48,793
May 19972,5811,60018.972.31$52,655
Apr 199782142117.882.08$15,556
Mar 199791337818.951.94$18,034
Feb 199776236020.492.21$16,408
Jan 199767847723.483.54$17,608
Dec 199650434823.32$11,753
Nov 1996407021.97$8,942
Oct 1996555023.31$12,937
Sep 1996403022.22$8,955
Aug 1996388020.26$7,861
Jul 1996437019.55$8,543
Jun 1996518018.73$9,702
May 1996374019.43$7,267
Apr 1996417021.51$8,970
Mar 1996372019.38$7,209
Feb 19962889016.98$4,890
Jan 199629310317.07$5,002
Dec 19952425817.19$4,160
Nov 1995255016.00$4,080
Oct 19950015.43$0
Sep 19950016.18$0
Aug 19955015.92$80
Jul 199519015.24$290
Jun 1995179016.41$2,937
May 19957582,80217.56$13,310
Apr 19954413,74617.73$7,819
Mar 19956152,53716.44$10,111
Feb 199559013116.58$9,782
Jan 199558712715.92$9,345
Dec 199476716115.03$11,528
Nov 199466022115.90$10,494
Oct 199452222315.58$8,133
Sep 199453625215.29$8,195
Aug 199455722616.13$8,984
Jul 199451347317.56$9,008
Jun 199447440017.09$8,101
May 199450829315.88$8,067
Apr 19941,11586314.14$15,766
Mar 19941,4551,10812.46$18,129
Feb 19941,07993512.50$13,488
Jan 19949781,02612.66$12,381
Dec 199347937812.33$5,906
Nov 199377418414.49$11,215
Oct 19937613415.85$12,062
Sep 19937692915.03$11,558
Aug 19939853415.66$15,425
Jul 19939203815.46$14,223
Jun 19938923016.79$14,977
May 19937754217.68$13,702
Apr 199382037218.05$14,801
Mar 199380125118.14$14,530
Feb 19935172217.90$9,254
Jan 199356815316.93$9,616

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 2017 — as filed, then multipliedworked
Oil                1,155 bbl  × $ 45.37 =    $52,402
Casinghead gas         0 Mcf  × $  3.26 =         $0

────────────────────────────────────────────────────
Month total                                  $52,402

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. 04/O/3366 is the state's own key, not one this site invented.