SENTRY, C.C.

Operated by MONTARE OPERATING, LTD. (P-5 577015) in the FUHRMAN-MASCHO field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 29225District 08Field 33176001Hydrogen sulphide fieldNGPA filingOilCasinghead gasSaveExport
Value, all time
$11.2 M
Jan 1993 – May 2026
Value, last 12 filed months
$369 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 510 leases and 5,228 wells, and the rule below applies to all of them.

Discovered
1930-12-31
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 5 acres. The field rule took effect on 2008-10-20.

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: ANDRES RESERVOIRS.

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
OilDisposition150,203 bbl$10,768,620
Casinghead gasProduction96,803 Mcf$406,712
Total$11,175,332

882 Mcf of this lease's gas, across 29 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 (9)

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 32.2366, -102.7441. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.2 miles.

32.23658, -102.74397 · 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 9 wells
With a plug date
0.0%
0 of 9 wells
Median depth
4,780 ft
9 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.
9100.0%

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, 9 of 9 wells. Median 4,780 ft, with the middle half between 4,758 and 4,850 ft; the shallowest is 4,750 ft and the deepest 4,877 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, 9 of 9 wells, Jun 1984 – Feb 2014. This is the LAST completion filed on each wellbore, not the first — a well recompleted in 2019 counts once, in the 2010s.

Completions filed
Jun 1984 – Feb 2014
9 of 9 wells

9 wells

42-0034586894,850 ftFeb 2014
42-0034443584,780 ftSep 2012
42-0034439164,780 ftSep 2012
42-0034439674,790 ftSep 2012
42-0034323954,850 ftSep 2011
42-0034203844,877 ftOct 2010
42-0034083434,758 ftJan 2009
42-0033978024,750 ftJun 2006
42-0033418914,750 ftJun 1984

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 2026450387106.413.05$49,063
Apr 202633129898.932.87$33,601
Mar 202630525189.753.15$28,164
Feb 202626228563.503.75$17,706
Jan 202627140559.138.00$19,263
Dec 202528532256.664.41$17,569
Nov 202533840258.593.93$21,382
Oct 202551557559.383.30$32,481
Sep 202551313462.743.08$32,598
Aug 2025526063.933.01$33,627
Jul 2025565066.743.32$37,708
Jun 202568912066.483.13$46,180
May 202549621160.553.23$30,715
Apr 202537630862.363.54$24,539
Mar 202539640667.704.27$28,542
Feb 202535535970.884.34$26,721
Jan 202535336574.324.28$27,797
Dec 20243965568.993.12$27,492
Nov 202456242869.052.20$39,747
Oct 202418618271.372.28$13,690
Sep 202417320069.612.36$12,515
Aug 202416417475.632.06$12,762
Jul 202418017279.932.15$14,757
Jun 202418021678.082.63$14,623
May 202418920078.812.20$15,335
Apr 202417515684.451.66$15,038
Mar 202419722780.301.55$16,170
Feb 202417618476.091.78$13,720
Jan 202421818973.023.30$16,542
Dec 202317317771.262.61$12,790
Nov 202316920077.892.81$13,725
Oct 2023171485.443.09$14,623
Sep 202318118689.042.74$16,625
Aug 202322611280.522.67$18,497
Jul 202322717874.852.64$17,461
Jun 20232269868.962.26$15,806
May 202323920670.622.23$17,337
Apr 202323622978.122.24$18,949
Mar 202324522572.852.39$18,387
Feb 202326123075.112.47$20,171
Jan 202328326276.533.39$22,546
Dec 202228425476.415.73$23,156
Nov 202228126885.005.65$25,398
Oct 202233327887.185.86$30,661
Sep 202233227684.888.16$30,433
Aug 202237230594.529.13$37,945
Jul 2022354252101.587.54$37,860
Jun 2022486328115.097.98$58,550
May 2022897114109.378.43$99,066
Apr 2022247114104.226.84$26,522
Mar 202218399108.885.08$20,428
Feb 20221909991.054.86$17,781
Jan 20221889981.844.54$15,835
Dec 202119214471.323.90$14,255
Nov 202123514377.435.24$18,945
Oct 202123812979.795.71$19,727
Sep 20212319669.865.35$16,651
Aug 202125116466.024.22$17,263
Jul 20212895170.783.98$20,659
Jun 202126415669.493.38$18,873
May 20213166963.483.02$20,268
Apr 202132513460.362.76$19,987
Mar 202138513061.302.72$23,954
Feb 202131819557.805.55$19,462
Jan 202174519550.412.81$38,103
Dec 202046013844.642.68$20,904
Nov 202018117138.772.71$7,480
Oct 202014816236.972.48$5,873
Sep 202014416237.091.99$5,664
Aug 202015016339.982.39$6,386
Jul 202014817838.371.83$6,004
Jun 202016110434.901.69$5,795
May 202015213016.921.81$2,808
Apr 202015915814.751.80$2,630
Mar 202017219330.341.86$5,577
Feb 202016517649.881.98$8,579
Jan 202017617257.252.09$10,436
Dec 2019182059.012.30$10,740
Nov 201917717255.302.75$10,261
Oct 201918317853.472.42$10,216
Sep 201917310055.052.66$9,789
Aug 201920020753.112.30$11,099
Jul 201919619456.272.46$11,506
Jun 201918920252.782.49$10,479
May 201920620258.482.74$12,600
Apr 201920621162.632.75$13,482
Mar 201921822456.803.06$13,068
Feb 201919819950.852.79$10,624
Jan 201922323446.033.23$11,020
Dec 201822622546.594.19$11,471
Nov 201821620552.934.24$12,302
Oct 201820520861.443.40$13,302
Sep 201820219259.543.11$12,624
Aug 201821521559.403.07$13,430
Jul 201828628465.142.93$19,463
Jun 201827630060.183.08$17,533
May 201832832965.382.90$22,399
Apr 201835736063.842.90$23,835
Mar 201841540161.222.79$26,524
Feb 201836435961.782.77$23,481
Jan 201842741162.874.01$28,493
Dec 201741540257.272.92$24,942
Nov 201735835955.423.12$20,960
Oct 201736539149.292.98$19,157
Sep 201729930347.523.09$15,144
Aug 201731232645.373.00$15,135
Jul 201735333643.873.09$16,523
Jun 201738338842.493.09$17,472
May 201738539145.373.26$18,743
Apr 201733634047.933.21$17,196
Mar 201735234746.772.98$17,498
Feb 201727526550.452.95$14,656
Jan 201736534949.413.42$19,228
Dec 201635034348.763.72$18,343
Nov 201623024142.492.64$10,410
Oct 201627527846.193.09$13,561
Sep 201630630741.553.10$13,666
Aug 201632231741.442.92$14,271
Jul 201623623141.622.92$10,498
Jun 201622923145.352.69$11,006
May 201628827242.521.99$12,787
Apr 201632131136.561.99$12,355
Mar 201643642333.011.79$15,151
Feb 201644540426.472.06$12,613
Jan 201652343327.352.36$15,328
Dec 201542641032.362.00$14,606
Nov 201550046338.792.17$20,398
Oct 201563144943.552.43$28,570
Sep 201564041342.992.76$28,653
Aug 201565257240.162.87$27,827
Jul 201541442548.152.95$21,186
Jun 201553643356.152.88$31,345
May 201556652155.212.96$32,789
Apr 201549919749.822.71$25,393
Mar 201560231042.892.93$26,730
Feb 201551128144.662.98$23,658
Jan 201577436943.433.10$34,759
Dec 201472528754.693.59$40,681
Nov 201472414570.464.25$51,630
Oct 201473537378.303.90$59,006
Sep 201473635886.164.05$64,862
Aug 201487236089.394.04$79,401
Jul 20141,19433696.564.18$116,697
Jun 20141,22048198.164.74$122,034
May 20141,1751,00794.734.73$116,067
Apr 20141,5161,17795.944.81$151,105
Mar 20141,6601,31895.895.06$165,842
Feb 201474356697.406.19$75,873
Jan 201472856490.404.86$68,553
Dec 201371248791.824.35$67,496
Nov 201376656588.853.74$70,171
Oct 201377967097.423.78$78,422
Sep 2013785605104.113.72$83,976
Aug 2013994680104.253.52$106,020
Jul 20131,146628102.523.72$119,823
Jun 20131,18962594.403.93$114,700
May 20131,26174394.834.15$122,663
Apr 20131,08165993.964.28$104,393
Mar 20131,31092893.623.91$126,273
Feb 20131,7941,34291.233.42$168,256
Jan 20131,6601,88591.603.42$158,503
Dec 20122,8862,98086.773.42$260,610
Nov 20123,8592,88386.953.62$345,991
Oct 20125,3122,96789.383.40$484,873
Sep 20125,13783594.672.92$488,757
Aug 201258026192.662.91$54,502
Jul 201260433285.133.02$52,421
Jun 201258221979.822.52$47,007
May 201270137791.612.49$65,157
Apr 2012686394101.652.00$70,519
Mar 2012816402105.052.22$86,614
Feb 2012732423101.102.57$75,092
Jan 201280458098.092.73$80,450
Dec 201188256696.873.24$87,273
Nov 20111,27716895.723.31$122,791
Oct 20112,35557084.983.65$202,208
Sep 201195142483.623.99$81,213
Aug 201140924383.404.15$35,119
Jul 201114524094.144.52$14,734
Jun 201133726092.904.64$32,514
May 201145129998.134.40$45,574
Apr 2011575198105.964.33$61,785
Mar 201143894296.364.06$46,028
Feb 201126967085.644.18$25,838
Jan 201147545086.504.59$43,152
Dec 201087340085.734.35$76,581
Nov 20101,32675280.843.80$110,048
Oct 20101,42852878.103.51$113,379
Sep 201026913772.633.98$20,083
Aug 201032715773.684.42$24,787
Jul 201028521872.554.74$21,709
Jun 201039629770.364.91$29,321
May 201027224871.124.24$20,395
Apr 201033327781.694.12$28,345
Mar 201036929178.394.39$30,203
Feb 201045828373.585.44$35,240
Jan 201047924474.365.96$37,074
Dec 200922015271.445.48$16,550
Nov 200941223574.593.75$31,613
Oct 200943726172.544.11$32,773
Sep 200947029365.543.06$31,702
Aug 200936823067.423.22$25,551
Jul 200940326061.133.46$25,536
Jun 200956333266.163.90$38,541
May 200946830254.743.93$26,804
Apr 200968632846.773.59$33,261
Mar 200995841542.144.06$42,055
Feb 20092,22555532.814.63$75,574
Jan 200938712335.865.37$14,538
Dec 200820613237.105.98$8,432
Nov 200823512355.496.86$13,884
Oct 200818728775.246.92$16,056
Sep 2008133120101.767.88$14,479
Aug 2008133370114.228.48$18,330
Jul 2008100295131.0811.39$16,468
Jun 2008108263131.3313.03$17,611
May 2008122276123.1711.57$18,221
Apr 2008630324110.3110.45$72,883
Mar 2008968319101.909.66$101,722
Feb 200851022192.538.77$49,129
Jan 200881821590.388.21$75,695
Dec 200772920488.337.30$65,882
Nov 20071,42819291.677.29$132,305
Oct 20071,66026082.856.92$139,331
Sep 200782327875.846.24$64,152
Aug 200773735569.066.39$53,165
Jul 200779831770.906.39$58,603
Jun 200796830862.007.55$62,341
May 200770432658.747.85$43,911
Apr 200782135759.617.81$51,726
Mar 200795840156.927.30$57,457
Feb 200773939255.108.22$43,940
Jan 200765841050.306.73$35,855
Dec 200676381556.656.92$48,862
Nov 200678543154.207.62$45,830
Oct 20066021,18354.906.01$40,164
Sep 20068991,60360.085.04$62,087
Aug 20067031,62268.717.34$60,208
Jul 20061,3081,13069.376.34$97,903
Jun 20064,04195866.286.38$273,953
May 20062246066.016.42$4,408
Apr 200631364.397.36$2,018
Mar 200629956.707.08$1,708
Feb 2006311357.597.75$1,886
Jan 2006221460.598.93$1,458
Dec 200520754.9413.42$1,193
Nov 200520754.6910.59$1,168
Oct 2005159858.3413.80$2,227
Sep 20053434361.4512.08$6,232
Aug 200515311961.519.80$10,577
Jul 200505955.697.84$463
Jun 200506952.337.38$509
May 200503845.226.65$253
Apr 20051661949.207.36$8,307
Mar 200502250.377.15$157
Feb 200502745.226.31$170
Jan 20051714043.166.32$7,633
Dec 200402939.866.75$196
Nov 200402545.286.33$158
Oct 200401849.706.52$117
Sep 20041521543.245.28$6,652
Aug 200402142.375.55$117
Jul 200403238.286.08$195
Jun 20041592436.106.43$5,894
May 200402437.486.49$156
Apr 200402534.475.86$146
Mar 20041643134.365.53$5,806
Feb 200403032.455.51$165
Jan 200403232.036.30$202
Dec 20031534530.266.30$4,913
Nov 200303628.804.60$165
Oct 200303428.174.76$162
Sep 20031573326.314.75$4,287
Aug 200303329.765.13$169
Jul 200303529.415.17$181
Jun 20031523428.565.98$4,545
May 200303426.595.97$203
Apr 200303726.675.41$200
Mar 20031644031.146.10$5,351
Feb 200303733.487.93$293
Jan 20031583930.315.58$5,007
Dec 200203926.914.85$189
Nov 200203724.664.14$153
Oct 200204026.464.23$169
Sep 20021562427.443.64$4,368
Aug 200202825.963.16$89
Jul 20021624124.583.06$4,107
Jun 200203923.733.34$130
May 200206824.663.58$244
Apr 20021685323.653.51$4,159
Mar 200206522.003.10$202
Feb 200206318.222.38$150
Jan 20021827517.172.38$3,303
Dec 200107816.932.36$184
Nov 200107918.072.41$190
Oct 20011508719.782.53$3,187
Sep 200108524.262.25$191
Aug 20011657724.873.05$4,339
Jul 200109523.933.20$304
Jun 20011546924.563.82$4,046
May 200107525.524.31$323
Apr 20011697524.685.34$4,571
Mar 200108524.545.38$457
Feb 200109027.755.77$519
Jan 20011648327.478.40$5,202
Dec 20001597626.889.12$4,967
Nov 2000010532.215.66$594
Oct 200008231.235.15$422
Sep 200007031.875.19$363
Aug 200009429.644.54$427
Jul 200009428.534.09$384
Jun 200015413029.304.40$5,084
May 2000010527.263.68$386
Apr 2000013224.513.12$411
Mar 20001619028.422.86$4,833
Feb 20001608127.622.73$4,640
Jan 20001588225.272.48$4,196
Dec 199907024.282.42$170
Nov 199906723.192.43$163
Oct 19991638520.982.80$3,658
Sep 19991656821.752.62$3,767
Aug 19991517919.262.88$3,135
Jul 19991568817.892.37$3,000
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 1998717610.892.19$939
Oct 1998010112.421.97$199
Sep 199808912.592.08$185
Aug 1998839111.301.91$1,111
Jul 19981537911.742.24$1,973
Jun 19983095511.242.24$3,596
May 19980012.622.21$0
Apr 1998161013.042.51$2,099
Mar 1998164012.802.31$2,099
Feb 19980013.952.30$0
Jan 19980014.702.15$0
Dec 1997179016.322.41$2,921
Nov 1997185018.193.09$3,365
Oct 1997173019.253.15$3,330
Sep 1997332017.742.95$5,890
Aug 19970017.862.55$0
Jul 1997333017.582.25$5,854
Jun 1997180017.242.26$3,103
May 19970018.972.31$0
Apr 1997125017.882.08$2,235
Mar 19971466818.951.94$2,899
Feb 199705820.492.21$128
Jan 19971592923.483.54$3,836
Dec 19961726023.32$4,011
Nov 199609121.97$0
Oct 199625110523.31$5,851
Sep 199675022.22$1,667
Aug 19960020.26$0
Jul 19960219.55$0
Jun 19960818.73$0
May 199618011919.43$3,497
Apr 199634314421.51$7,378
Mar 199636115119.38$6,996
Feb 199654117416.98$9,186
Jan 19961,051917.07$17,941
Dec 1995141017.19$2,424
Nov 19950016.00$0
Oct 19950015.43$0
Sep 19950016.18$0
Aug 1995140015.92$2,229
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 1995161015.92$2,563
Dec 19940015.03$0
Nov 19940015.90$0
Oct 19940015.58$0
Sep 19940115.29$0
Aug 1994167116.13$2,694
Jul 19940117.56$0
Jun 19940117.09$0
May 19940115.88$0
Apr 19940114.14$0
Mar 19940112.46$0
Feb 19940112.50$0
Jan 1994134112.66$1,696
Dec 19930112.33$0
Nov 19930014.49$0
Oct 199320015.85$317
Sep 19930115.03$0
Aug 19930115.66$0
Jul 19930115.46$0
Jun 19930116.79$0
May 19930117.68$0
Apr 19930118.05$0
Mar 19930118.14$0
Feb 19930117.90$0
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                  450 bbl  × $106.41 =    $47,885
Casinghead gas       387 Mcf  × $  3.05 =     $1,179

────────────────────────────────────────────────────
Month total                                  $49,063

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. 08/O/29225 is the state's own key, not one this site invented.