MARCOM

Operated by BULLIN, R. E. OPERATING INC. (P-5 106531) in the D-L-S (SAN ANDRES) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 66020District 8AField 22660500Hydrogen sulphide fieldOilCasinghead gasSaveExport
Value, all time
$1.1 M
Jan 1993 – May 2026
Value, last 12 filed months
$46 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 33 leases and 246 wells, and the rule below applies to all of them.

Discovered
1971-06-16
as the register files it
Field class
Oil
the register's own label
Between wells
450 ft
minimum
From a lease line
230 ft
minimum

A drilling unit in this field needs at least 10 acres. The field rule took effect on 1990-03-05.

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: 10 ACRE OPT., DIAG. 1100'

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
OilDisposition22,790 bbl$1,058,136
Casinghead gasProduction12,210 Mcf$44,535
Total$1,102,671

1,650 Mcf of this lease's gas, across 48 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 (1)

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 33.4729, -102.3409. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.0 miles.

33.47287, -102.34085 · 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 1 wells
With a plug date
0.0%
0 of 1 wells
Median depth
5,185 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
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.
1100.0%

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 5,185 ft.

Completions filed
Jul 1987
1 of 1 wells

1 well

42-2193506115,185 ftJul 1987

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 2026030106.413.05$91
Apr 202603098.932.87$86
Mar 20261643089.753.15$14,813
Feb 202603063.503.75$113
Jan 202603059.138.00$240
Dec 20251563056.664.41$8,971
Nov 202503058.593.93$118
Oct 202503059.383.30$99
Sep 202503062.743.08$92
Aug 20251653063.933.01$10,639
Jul 202503066.743.32$99
Jun 20251573066.483.13$10,531
May 202503060.553.23$97
Apr 202503062.363.54$106
Mar 202503067.704.27$128
Feb 20251663070.884.34$11,896
Jan 202503074.324.28$128
Dec 202403068.993.12$94
Nov 20241703069.052.20$11,804
Oct 202403071.372.28$68
Sep 202403069.612.36$71
Aug 20241633075.632.06$12,390
Jul 202403079.932.15$64
Jun 202403078.082.63$79
May 202403078.812.20$66
Apr 20241723084.451.66$14,575
Mar 202403080.301.55$46
Feb 202403076.091.78$54
Jan 20241703073.023.30$12,512
Dec 202303071.262.61$78
Nov 202303077.892.81$84
Oct 202303085.443.09$93
Sep 202303089.042.74$82
Aug 202303080.522.67$80
Jul 20231823074.852.64$13,702
Jun 202303068.962.26$68
May 202303070.622.23$67
Apr 20231683078.122.24$13,191
Mar 202303072.852.39$72
Feb 202303075.112.47$74
Jan 20231773076.533.39$13,647
Dec 202203076.415.73$172
Nov 202203085.005.65$169
Oct 202203087.185.86$176
Sep 20221753084.888.16$15,099
Aug 202203094.529.13$274
Jul 2022030101.587.54$226
Jun 2022030115.097.98$239
May 2022030109.378.43$253
Apr 2022030104.226.84$205
Mar 2022030108.885.08$152
Feb 202203091.054.86$146
Jan 202203081.844.54$136
Dec 202103071.323.90$117
Nov 202103077.435.24$157
Oct 20211693079.795.71$13,656
Sep 202103069.865.35$161
Aug 20211743066.024.22$11,614
Jul 202103070.783.98$119
Jun 202103069.493.38$101
May 202103063.483.02$91
Apr 202103060.362.76$83
Mar 202103061.302.72$82
Feb 202103057.805.55$166
Jan 202103050.412.81$84
Dec 20201613044.642.68$7,267
Nov 202003038.772.71$81
Oct 202003036.972.48$74
Sep 20201713037.091.99$6,402
Aug 20201723039.982.39$6,948
Jul 202003038.371.83$55
Jun 202003034.901.69$51
May 202003016.921.81$54
Apr 202003014.751.80$54
Mar 202003030.341.86$56
Feb 20201583049.881.98$7,940
Jan 202003057.252.09$63
Dec 201903059.012.30$69
Nov 20191653055.302.75$9,207
Oct 201903053.472.42$73
Sep 201903055.052.66$80
Aug 201903053.112.30$69
Jul 201903056.272.46$74
Jun 201903052.782.49$75
May 20191623058.482.74$9,556
Apr 201903062.632.75$83
Mar 201903056.803.06$92
Feb 201903050.852.79$84
Jan 20191713046.033.23$7,968
Dec 201803046.594.19$126
Nov 201803052.934.24$127
Oct 201803061.443.40$102
Sep 20181613059.543.11$9,679
Aug 201803059.403.07$92
Jul 201803065.142.93$88
Jun 20181633060.183.08$9,902
May 201803065.382.90$87
Apr 201803063.842.90$87
Mar 20181663061.222.79$10,246
Feb 201803061.782.77$83
Jan 201803062.874.01$120
Dec 20171653057.272.92$9,537
Nov 201703055.423.12$94
Oct 201703049.292.98$90
Sep 20171643047.523.09$7,886
Aug 201703045.373.00$90
Jul 201703043.873.09$93
Jun 201703042.493.09$93
May 20171693045.373.26$7,765
Apr 201703047.933.21$96
Mar 201703046.772.98$90
Feb 20171663050.452.95$8,463
Jan 201703049.413.42$103
Dec 201603048.763.72$112
Nov 201603042.492.64$79
Oct 20161633046.193.09$7,622
Sep 201603041.553.10$93
Aug 201603041.442.92$88
Jul 20161643041.622.92$6,913
Jun 201603045.352.69$81
May 201603042.521.99$60
Apr 20161683036.561.99$6,202
Mar 201603033.011.79$54
Feb 20161723026.472.06$4,615
Jan 201603027.352.36$71
Dec 201503032.362.00$60
Nov 201503038.792.17$65
Oct 20151563043.552.43$6,867
Sep 201503042.992.76$83
Aug 201503040.162.87$86
Jul 20151673048.152.95$8,129
Jun 201503056.152.88$86
May 201503055.212.96$89
Apr 20151653049.822.71$8,302
Mar 201503042.892.93$88
Feb 201503044.662.98$89
Jan 201503043.433.10$93
Dec 201403054.693.59$108
Nov 20141573070.464.25$11,190
Oct 201403078.303.90$117
Sep 201403086.164.05$121
Aug 20141643089.394.04$14,781
Jul 201403096.564.18$125
Jun 201403098.164.74$142
May 20141663094.734.73$15,867
Apr 201403095.944.81$144
Mar 201403095.895.06$152
Feb 20141693097.406.19$16,646
Jan 201403090.404.86$146
Dec 20131663091.824.35$15,373
Nov 201303088.853.74$112
Oct 201303097.423.78$113
Sep 201316930104.113.72$17,706
Aug 2013030104.253.52$106
Jul 2013030102.523.72$112
Jun 201303094.403.93$118
May 20131703094.834.15$16,246
Apr 201303093.964.28$128
Mar 201303093.623.91$117
Feb 201303091.233.42$103
Jan 20131683091.603.42$15,491
Dec 201203086.773.42$103
Nov 201203086.953.62$109
Oct 20121713089.383.40$15,386
Sep 201203094.672.92$88
Aug 201203092.662.91$87
Jul 20121673085.133.02$14,307
Jun 201203079.822.52$76
May 20121703091.612.49$15,648
Apr 2012030101.652.00$60
Mar 2012030105.052.22$67
Feb 2012030101.102.57$77
Jan 201203098.092.73$82
Dec 201103096.873.24$97
Nov 201103095.723.31$99
Oct 201103084.983.65$109
Sep 20111673083.623.99$14,084
Aug 20111723083.404.15$14,469
Jul 201103094.144.52$136
Jun 201103092.904.64$139
May 201103098.134.40$132
Apr 2011030105.964.33$130
Mar 201103096.364.06$122
Feb 20111693085.644.18$14,599
Jan 201103086.504.59$138
Dec 201003085.734.35$130
Nov 20101723080.843.80$14,018
Oct 201003078.103.51$105
Sep 201003072.633.98$119
Aug 201003073.684.42$133
Jul 20101623072.554.74$11,895
Jun 201003070.364.91$147
May 20101653071.124.24$11,862
Apr 201003081.694.12$124
Mar 20101613078.394.39$12,752
Feb 201003073.585.44$163
Jan 201003074.365.96$179
Dec 200903071.445.48$165
Nov 200903074.593.75$113
Oct 20091773072.544.11$12,963
Sep 200903065.543.06$92
Aug 200903067.423.22$97
Jul 20091723061.133.46$10,618
Jun 20091723066.163.90$11,496
May 200903054.743.93$118
Apr 200903046.773.59$108
Mar 20091693042.144.06$7,243
Feb 200903032.814.63$139
Jan 20091723035.865.37$6,329
Dec 200803037.105.98$179
Nov 200803055.496.86$206
Oct 200803075.246.92$208
Sep 200817330101.767.88$17,841
Aug 2008030114.228.48$254
Jul 2008030131.0811.39$342
Jun 200816330131.3313.03$21,798
May 2008030123.1711.57$347
Apr 2008030110.3110.45$314
Mar 200816030101.909.66$16,594
Feb 200803092.538.77$263
Jan 200803090.388.21$246
Dec 20071713088.337.30$15,323
Nov 200703091.677.29$219
Oct 200703082.856.92$208
Sep 20071713075.846.24$13,156
Aug 200703069.066.39$192
Jul 20071703070.906.39$12,245
Jun 200703062.007.55$226
May 200703058.747.85$235
Apr 200703059.617.81$234
Mar 20071673056.927.30$9,725
Feb 200703055.108.22$246
Jan 20071713050.306.73$8,803
Dec 200603056.656.92$208
Nov 200603054.207.62$229
Oct 200603054.906.01$180
Sep 200603060.085.04$151
Aug 20061553068.717.34$10,870
Jul 200603069.376.34$190
Jun 200603066.286.38$192
May 20061613066.016.42$10,820
Apr 200603064.397.36$221
Mar 20061703056.707.08$9,851
Feb 200603057.597.75$233
Jan 200603060.598.93$268
Dec 20051653054.9413.42$9,468
Nov 200503054.6910.59$318
Oct 200503058.3413.80$414
Sep 200503061.4512.08$362
Aug 20051693061.519.80$10,689
Jul 200503055.697.84$235
Jun 200503052.337.38$221
May 20051633045.226.65$7,570
Apr 200503049.207.36$221
Mar 20051773050.377.15$9,130
Feb 200503045.226.31$189
Jan 200503043.166.32$190
Dec 20041743039.866.75$7,138
Nov 200403045.286.33$190
Oct 200403049.706.52$195
Sep 200403043.245.28$159
Aug 20041493042.375.55$6,480
Jul 200403038.286.08$183
Jun 20041773036.106.43$6,583
May 200403037.486.49$195
Apr 200403034.475.86$176
Mar 20041773034.365.53$6,248
Feb 200403032.455.51$165
Jan 200403032.036.30$189
Dec 20031783030.266.30$5,575
Nov 200303028.804.60$138
Oct 200303028.174.76$143
Sep 20031753026.314.75$4,747
Aug 200303029.765.13$154
Jul 20031703029.415.17$5,155
Jun 200303028.565.98$179
May 20030026.595.97$0
Apr 200303026.675.41$162
Mar 200303031.146.10$183
Feb 20031583033.487.93$5,528
Jan 20031503030.315.58$4,714
Dec 200203026.914.85$146
Nov 200203024.664.14$124
Oct 200203026.464.23$127
Sep 20021753027.443.64$4,911
Aug 200203025.963.16$95
Jul 200203024.583.06$92
Jun 20021823023.733.34$4,419
May 200203024.663.58$108
Apr 200203023.653.51$105
Mar 20023113022.003.10$6,935
Feb 200203018.222.38$71
Jan 200203017.172.38$71
Dec 200103016.932.36$71
Nov 200103018.072.41$72
Oct 20011743019.782.53$3,518
Sep 200103024.262.25$68
Aug 200103024.873.05$92
Jul 20011693023.933.20$4,140
Jun 200103024.563.82$115
May 200103025.524.31$129
Apr 20011573024.685.34$4,035
Mar 20011733024.545.38$4,407
Feb 200103027.755.77$173
Jan 200103027.478.40$252
Dec 20001593026.889.12$4,548
Nov 200003032.215.66$170
Oct 200003031.235.15$154
Sep 200003031.875.19$156
Aug 20001683029.644.54$5,116
Jul 200003028.534.09$123
Jun 20001713029.304.40$5,142
May 200003027.263.68$110
Apr 20001663024.513.12$4,162
Mar 200003028.422.86$86
Feb 200003027.622.73$82
Jan 20001713025.272.48$4,396
Dec 19991823024.282.42$4,492
Nov 199903023.192.43$73
Oct 19991863020.982.80$3,986
Sep 199903021.752.62$79
Aug 199903019.262.88$86
Jul 19991753017.892.37$3,202
Jun 199903015.942.36$71
May 19991763015.792.32$2,849
Apr 199903015.102.21$66
Mar 199903012.471.84$55
Feb 1999176309.981.82$1,811
Jan 199903010.381.90$57
Dec 1998180309.201.77$1,709
Nov 199803010.892.19$66
Oct 19981853012.421.97$2,357
Sep 199803012.592.08$62
Aug 199803011.301.91$57
Jul 199803011.742.24$67
Jun 19981833011.242.24$2,124
May 199803012.622.21$66
Apr 19981783013.042.51$2,396
Mar 199803012.802.31$69
Feb 199803013.952.30$69
Jan 19981683014.702.15$2,534
Dec 199703016.322.41$72
Nov 19971343018.193.09$2,530
Oct 199703019.253.15$94
Sep 19971893017.742.95$3,442
Aug 199703017.862.55$77
Jul 19971773017.582.25$3,179
Jun 199703017.242.26$68
May 199703018.972.31$69
Apr 19971793017.882.08$3,263
Mar 199703018.951.94$58
Feb 19971843020.492.21$3,836
Jan 199703023.483.54$106
Dec 19961813023.32$4,221
Nov 199603021.97$0
Oct 199603023.31$0
Sep 19961663022.22$3,689
Aug 199603020.26$0
Jul 19961763019.55$3,441
Jun 199603018.73$0
May 19961763019.43$3,420
Apr 199603021.51$0
Mar 19961823019.38$3,527
Feb 199603016.98$0
Jan 19961873017.07$3,192
Dec 199503017.19$0
Nov 199503016.00$0
Oct 19951693015.43$2,608
Sep 199501516.18$0
Aug 19951713015.92$2,722
Jul 199501515.24$0
Jun 19951793016.41$2,937
May 199503017.56$0
Apr 19951653017.73$2,925
Mar 199503016.44$0
Feb 19951731516.58$2,868
Jan 199501515.92$0
Dec 19941771515.03$2,660
Nov 199403015.90$0
Oct 19941823015.58$2,836
Sep 199403015.29$0
Aug 19941743016.13$2,807
Jul 199404517.56$0
Jun 19941864517.09$3,179
May 199404515.88$0
Apr 19941754514.14$2,475
Mar 199404512.46$0
Feb 19941854512.50$2,313
Jan 199404512.66$0
Dec 19931794512.33$2,207
Nov 199304514.49$0
Oct 19931744515.85$2,758
Sep 199304515.03$0
Aug 19931824515.66$2,850
Jul 199304515.46$0
Jun 19931874516.79$3,140
May 199304517.68$0
Apr 19931804518.05$3,249
Mar 199304518.14$0
Feb 19931784517.90$3,186
Jan 199304516.93$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                    0 bbl  × $106.41 =         $0
Casinghead gas        30 Mcf  × $  3.05 =        $91

────────────────────────────────────────────────────
Month total                                      $91

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/66020 is the state's own key, not one this site invented.