COFFIELD B-10

Operated by BETRO, INC. (P-5 68324) in the MILBUR, EAST (3110) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 11814District 03Field 61350500NGPA filingOilCasinghead gasSaveExport
Value, all time
$754 k
Jan 1993 – May 2026
Value, last 12 filed months
$31 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 9 leases and 12 wells, and the rule below applies to all of them.

Discovered
1976-04-11
as the register files it
Field class
Oil and gas
the register's own label
Between wells
no field rule filed
From a lease line
no field rule filed

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
NGPA2none

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
OilDisposition13,385 bbl$679,741
Casinghead gasProduction23,504 Mcf$74,626
Total$754,366

5,188 Mcf of this lease's gas, across 44 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 (3)

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 30.5920, -96.8690. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.4 miles.

30.59192, -96.86857 · 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
66.7%
2 of 3 wells
With a plug date
66.7%
2 of 3 wells
Median depth
3,410 ft
3 wells filed one
Completion to plug
12.5 years
median over 2 wells

What the state filed about each well

On the RRC proration schedule
266.7%
A plug date is filed
266.7%
BothOn the schedule and plugged. Neither fact cancels the other.
266.7%
NeitherNo plug date, and not on the schedule.
133.3%

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 3,350 and 3,686 ft, median 3,410 ft, over the 3 wells that filed a depth.

Completions filed
Mar 1978 – Nov 1982
3 of 3 wells
Plug dates filed
Sep 1987 – May 1998
2 of 3 wells; 1 filed none

Last completion to plug: a median of 12.5 years across the 2 wells that filed both dates, with the middle half between 8.7 years and 16.3 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

3 wells

42-0513197133,410 ftNov 1982Sep 1987Yes
42-051303071 A3,350 ftApr 1978May 1998Yes
42-0513030223,686 ftMar 1978

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 2026050106.413.05$152
Apr 20261725798.932.87$17,180
Mar 202605289.753.15$164
Feb 202604963.503.75$184
Jan 202603459.138.00$272
Dec 202504656.664.41$203
Nov 2025010358.593.93$404
Oct 2025010759.383.30$354
Sep 202505662.743.08$172
Aug 20251744563.933.01$11,259
Jul 202509966.743.32$328
Jun 20250066.483.13$0
May 202502060.553.23$65
Apr 202506362.363.54$223
Mar 202505467.704.27$230
Feb 202503870.884.34$165
Jan 20251773374.324.28$13,296
Dec 202403168.993.12$97
Nov 202405169.052.20$112
Oct 20241071.372.28$71
Sep 202405069.612.36$118
Aug 202405075.632.06$103
Jul 202404179.932.15$88
Jun 202407878.082.63$205
May 20241726878.812.20$13,705
Apr 202403884.451.66$63
Mar 202406080.301.55$93
Feb 202405976.091.78$105
Jan 202405173.023.30$168
Dec 202305771.262.61$149
Nov 202308077.892.81$225
Oct 202305485.443.09$167
Sep 20231697189.042.74$15,242
Aug 202305580.522.67$147
Jul 202303174.852.64$82
Jun 202303068.962.26$68
May 202305170.622.23$114
Apr 202304178.122.24$92
Mar 20231796172.852.39$13,186
Feb 202303675.112.47$89
Jan 202304276.533.39$142
Dec 202202876.415.73$160
Nov 202204185.005.65$231
Oct 202203487.185.86$199
Sep 202205984.888.16$482
Aug 20221714794.529.13$16,592
Jul 2022033101.587.54$249
Jun 2022063115.097.98$503
May 2022082109.378.43$692
Apr 2022066104.226.84$451
Mar 202216563108.885.08$18,285
Feb 202205291.054.86$253
Jan 202206581.844.54$295
Dec 202106371.323.90$246
Nov 202104777.435.24$246
Oct 202101479.795.71$80
Sep 20211686569.865.35$12,084
Aug 202106366.024.22$266
Jul 202105170.783.98$203
Jun 202104669.493.38$156
May 202108463.483.02$253
Apr 202101160.362.76$30
Mar 202103961.302.72$106
Feb 202102357.805.55$128
Jan 20211734950.412.81$8,859
Dec 202006344.642.68$169
Nov 202004338.772.71$116
Oct 202003736.972.48$92
Sep 20201844737.091.99$6,918
Aug 202006639.982.39$157
Jul 202008638.371.83$157
Jun 202006134.901.69$103
May 202004516.921.81$82
Apr 202006814.751.80$123
Mar 202007330.341.86$136
Feb 20201787849.881.98$9,033
Jan 2020011757.252.09$245
Dec 2019010159.012.30$233
Nov 201908855.302.75$242
Oct 201907153.472.42$172
Sep 201905955.052.66$157
Aug 201915211453.112.30$8,335
Jul 201902156.272.46$52
Jun 201902952.782.49$72
May 201902458.482.74$66
Apr 20190462.632.75$11
Mar 20190156.803.06$3
Feb 20191763950.852.79$9,059
Jan 201905146.033.23$165
Dec 2018010646.594.19$444
Nov 20180052.934.24$0
Oct 201803561.443.40$119
Sep 201806759.543.11$208
Aug 201803559.403.07$107
Jul 201804165.142.93$120
Jun 201806160.183.08$188
May 201803165.382.90$90
Apr 20181695463.842.90$10,946
Mar 201804961.222.79$137
Feb 201803561.782.77$97
Jan 201803662.874.01$144
Dec 201703157.272.92$91
Nov 201704955.423.12$153
Oct 20171744349.292.98$8,705
Sep 201701747.523.09$52
Aug 201702845.373.00$84
Jul 201706843.873.09$210
Jun 201706842.493.09$210
May 201705945.373.26$193
Apr 201705747.933.21$183
Mar 20171786346.772.98$8,513
Feb 201703550.452.95$103
Jan 201703749.413.42$127
Dec 201603448.763.72$127
Nov 201604542.492.64$119
Oct 201604046.193.09$124
Sep 20161803841.553.10$7,597
Aug 201608241.442.92$240
Jul 201605441.622.92$158
Jun 201603945.352.69$105
May 201602642.521.99$52
Apr 20161703036.561.99$6,275
Mar 201602933.011.79$52
Feb 201602726.472.06$56
Jan 201602527.352.36$59
Dec 201503232.362.00$64
Nov 201513638.792.17$117
Oct 20151753143.552.43$7,696
Sep 201505042.992.76$138
Aug 201506140.162.87$175
Jul 2015016348.152.95$480
Jun 20151795556.152.88$10,209
May 201507055.212.96$207
Apr 201507049.822.71$189
Mar 201508242.892.93$241
Feb 201507244.662.98$214
Jan 201502243.433.10$68
Dec 201401254.693.59$43
Nov 20141684070.464.25$12,007
Oct 201402478.303.90$94
Sep 201402786.164.05$109
Aug 20140689.394.04$24
Jul 201402896.564.18$117
Jun 201405298.164.74$246
May 201405494.734.73$255
Apr 20140695.944.81$29
Mar 201402295.895.06$111
Feb 20141671797.406.19$16,371
Jan 201401990.404.86$92
Dec 201306391.824.35$274
Nov 201305088.853.74$187
Oct 201301397.423.78$49
Sep 201317612104.113.72$18,368
Aug 2013042104.253.52$148
Jul 2013026102.523.72$97
Jun 201301694.403.93$63
May 201304694.834.15$191
Apr 201301093.964.28$43
Mar 20131671393.623.91$15,685
Feb 201303391.233.42$113
Jan 201307691.603.42$260
Dec 201202686.773.42$89
Nov 201202386.953.62$83
Oct 20121752289.383.40$15,716
Sep 201203394.672.92$96
Aug 201202692.662.91$76
Jul 201201485.133.02$42
Jun 201204179.822.52$103
May 20121703591.612.49$15,661
Apr 2012052101.652.00$104
Mar 2012012105.052.22$27
Feb 2012044101.102.57$113
Jan 201202598.092.73$68
Dec 20111771196.873.24$17,182
Nov 201102595.723.31$83
Oct 201102884.983.65$102
Sep 201104983.623.99$195
Aug 201106383.404.15$261
Jul 20111778594.144.52$17,047
Jun 201107592.904.64$348
May 201105398.134.40$233
Apr 2011057105.964.33$247
Mar 201104696.364.06$187
Feb 20111732185.644.18$14,904
Jan 201102586.504.59$115
Dec 201005285.734.35$226
Nov 201002480.843.80$91
Oct 20101787078.103.51$14,147
Sep 201005672.633.98$223
Aug 20100373.684.42$13
Jul 201003672.554.74$171
Jun 201003870.364.91$187
May 20101721371.124.24$12,288
Apr 201004981.694.12$202
Mar 201004978.394.39$215
Feb 201002373.585.44$125
Jan 20101795874.365.96$13,656
Dec 200903071.445.48$165
Nov 200902174.593.75$79
Oct 200901972.544.11$78
Sep 200902065.543.06$61
Aug 20091743067.423.22$11,828
Jul 200905561.133.46$191
Jun 200901066.163.90$39
May 200901054.743.93$39
Apr 20091742646.773.59$8,231
Mar 200904842.144.06$195
Feb 200903632.814.63$167
Jan 200903235.865.37$172
Dec 20081736237.105.98$6,789
Nov 200803255.496.86$220
Oct 200804575.246.92$311
Sep 200800101.767.88$0
Aug 2008021114.228.48$178
Jul 200817719131.0811.39$23,418
Jun 2008020131.3313.03$261
May 2008078123.1711.57$903
Apr 2008072110.3110.45$753
Mar 200817964101.909.66$18,859
Feb 200807592.538.77$658
Jan 2008010590.388.21$862
Dec 200708088.337.30$584
Nov 200703891.677.29$277
Oct 20071827082.856.92$15,563
Sep 200703375.846.24$206
Aug 200703969.066.39$249
Jul 20070070.906.39$0
Jun 20071789162.007.55$11,723
May 200709958.747.85$777
Apr 20071756759.617.81$10,955
Mar 200705756.927.30$416
Feb 200706255.108.22$509
Jan 200706950.306.73$464
Dec 2006012956.656.92$892
Nov 200607154.207.62$541
Oct 200618012454.906.01$10,628
Sep 200607060.085.04$353
Aug 200605568.717.34$404
Jul 20061782769.376.34$12,519
Jun 200602066.286.38$128
May 200608366.016.42$533
Apr 200622664.397.36$320
Mar 200601956.707.08$135
Feb 20061803057.597.75$10,599
Jan 200604860.598.93$429
Dec 200503154.9413.42$416
Nov 200505954.6910.59$625
Oct 200504158.3413.80$566
Sep 200505061.4512.08$604
Aug 20051795361.519.80$11,530
Jul 200503955.697.84$306
Jun 200504652.337.38$340
May 200504745.226.65$313
Apr 200512749.207.36$248
Mar 20051725550.377.15$9,057
Feb 200504545.226.31$284
Jan 200504243.166.32$266
Dec 20040039.866.75$0
Nov 200403045.286.33$190
Oct 20041784949.706.52$9,166
Sep 200403143.245.28$164
Aug 200406742.375.55$372
Jul 200404438.286.08$268
Jun 200406136.106.43$392
May 200405837.486.49$377
Apr 20041764934.475.86$6,354
Mar 200404034.365.53$221
Feb 200406932.455.51$380
Jan 200404532.036.30$283
Dec 20030030.266.30$0
Nov 200307128.804.60$326
Oct 20031775128.174.76$5,229
Sep 200304126.314.75$195
Aug 200306229.765.13$318
Jul 200306329.415.17$326
Jun 200304628.565.98$275
May 200305626.595.97$334
Apr 20031765026.675.41$4,964
Mar 200304231.146.10$256
Feb 200302733.487.93$214
Jan 200302430.315.58$134
Dec 200203726.914.85$180
Nov 200205524.664.14$228
Oct 20021806026.464.23$5,017
Sep 200205427.443.64$196
Aug 200204925.963.16$155
Jul 20020024.583.06$0
Jun 200204623.733.34$154
May 200205624.663.58$201
Apr 20021787323.653.51$4,466
Mar 200207822.003.10$242
Feb 200206718.222.38$159
Jan 200205817.172.38$138
Dec 20010016.932.36$0
Nov 200106818.072.41$164
Oct 200116511319.782.53$3,549
Sep 2001015024.262.25$338
Aug 2001015524.873.05$473
Jul 200102323.933.20$74
Jun 200105124.563.82$195
May 200104225.524.31$181
Apr 200103924.685.34$208
Mar 200108524.545.38$457
Feb 20011796127.755.77$5,319
Jan 200104427.478.40$370
Dec 200005026.889.12$456
Nov 200006332.215.66$356
Oct 200005931.235.15$304
Sep 20001736231.875.19$5,835
Aug 200006729.644.54$304
Jul 200006828.534.09$278
Jun 200006829.304.40$299
May 2000015327.263.68$563
Apr 200017614824.513.12$4,775
Mar 200009428.422.86$269
Feb 200016710527.622.73$4,899
Jan 200009225.272.48$228
Dec 1999014824.282.42$359
Nov 199906623.192.43$161
Oct 19990320.982.80$8
Sep 199902221.752.62$58
Aug 1999014719.262.88$423
Jul 199902517.892.37$59
Jun 199901215.942.36$28
May 19991748315.792.32$2,940
Apr 199908915.102.21$197
Mar 199904812.471.84$88
Feb 19990989.981.82$178
Jan 199909810.381.90$186
Dec 1998175939.201.77$1,775
Nov 199808010.892.19$175
Oct 199807712.421.97$152
Sep 199808212.592.08$171
Aug 19981788411.301.91$2,172
Jul 199808011.742.24$179
Jun 199808711.242.24$195
May 1998010012.622.21$221
Apr 19981658813.042.51$2,372
Mar 199809612.802.31$222
Feb 199808713.952.30$200
Jan 19981749814.702.15$2,769
Dec 199709016.322.41$217
Nov 199719618.193.09$315
Oct 19970019.253.15$0
Sep 19971789517.742.95$3,438
Aug 199709017.862.55$230
Jul 19970017.582.25$0
Jun 199706417.242.26$144
May 1997010318.972.31$238
Apr 19971779817.882.08$3,369
Mar 1997010818.951.94$209
Feb 199709920.492.21$218
Jan 199708823.483.54$311
Dec 19961749523.32$4,058
Nov 1996012621.97$0
Oct 199609823.31$0
Sep 1996010222.22$0
Aug 199617511520.26$3,546
Jul 1996010919.55$0
Jun 1996011118.73$0
May 1996011519.43$0
Apr 199617010521.51$3,657
Mar 1996010819.38$0
Feb 199609216.98$0
Jan 19961719217.07$2,919
Dec 199508417.19$0
Nov 1995010716.00$0
Oct 19951699215.43$2,608
Sep 199509316.18$0
Aug 1995010015.92$0
Jul 1995010015.24$0
Jun 199516912316.41$2,773
May 1995011817.56$0
Apr 1995012617.73$0
Mar 1995012016.44$0
Feb 19958510116.58$1,409
Jan 199502015.92$0
Dec 199477015.03$1,157
Nov 19940015.90$0
Oct 19940015.58$0
Sep 19940015.29$0
Aug 19940416.13$0
Jul 199403017.56$0
Jun 1994014417.09$0
May 199415610215.88$2,477
Apr 1994010414.14$0
Mar 1994015412.46$0
Feb 1994012312.50$0
Jan 199416917912.66$2,140
Dec 1993017112.33$0
Nov 1993010214.49$0
Oct 199316117515.85$2,552
Sep 1993022715.03$0
Aug 19939310415.66$1,456
Jul 1993013015.46$0
Jun 19933317716.79$554
May 199308717.68$0
Apr 19939820618.05$1,769
Mar 1993017018.14$0
Feb 199314717317.90$2,631
Jan 199317117416.93$2,895

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                    0 bbl  × $106.41 =         $0
Casinghead gas        50 Mcf  × $  3.05 =       $152

────────────────────────────────────────────────────
Month total                                     $152

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. 03/O/11814 is the state's own key, not one this site invented.