SOUTH LOPEZ UNIT

Operated by MIRANDO RESOURCE, L.L.C. (P-5 570409) in the LOPEZ field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 4390District 04Field 54883001OilCasinghead gasSaveExport
Value, all time
$2.7 M
Jan 1993 – Mar 2008
Value, last 12 filed months
$0
at the published price for each month
Months reported
183
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 14 leases and 256 wells, and the rule below applies to all of them.

Discovered
1935-06-24
as the register files it
Field class
Oil
the register's own label
Between wells
660 ft
minimum
From a lease line
330 ft
minimum

A drilling unit in this field needs at least 40 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
OilDisposition162,417 bbl$2,731,021
Casinghead gasProduction39 Mcf$41
Total$2,731,062

21 Mcf of this lease's gas, across 21 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 (219)

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 27.6804, -98.8154. A lease has no coordinate of its own — that point is the mean of its wells, and they span 4.1 miles. 84 wells have no surveyed location and are left out of it.

27.67977, -98.81546 · centre of 124 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
100.0%
219 of 219 wells
With a plug date
59.8%
131 of 219 wells
Median depth
2,223 ft
131 wells filed one
Completion to plug
41.7 years
median over 34 wells

What the state filed about each well

On the RRC proration schedule
219100.0%
A plug date is filed
13159.8%
BothOn the schedule and plugged. Neither fact cancels the other.
13159.8%
NeitherNo plug date, and not on the schedule.
00.0%

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, 131 of 219 wells. Median 2,223 ft, with the middle half between 2,190 and 2,250 ft; the shallowest is 2,129 ft and the deepest 3,064 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, 35 of 219 wells, Dec 1935 – Jun 2010. This is the LAST completion filed on each wellbore, not the first — a well recompleted in 2019 counts once, in the 2010s.

Completions filed
Dec 1935 – Jun 2010
35 of 219 wells; 184 filed none
Plug dates filed
Oct 1983 – Apr 2013
131 of 219 wells; 88 filed none

Last completion to plug: a median of 41.7 years across the 34 wells that filed both dates, with the middle half between 16.8 years and 55.1 years. A further 1 well is excluded, because the last completion the Commission holds for it is dated after the plug date. Both dates are the latest of their kind on the wellbore record and they are filed separately, so the two need not run in order. The gap is the distance between two filed dates — it is not a statement of how long the well produced.

200 of 219 wells

42-1318144216013,000 ftOct 1983Yes
42-4790091211032,152 ftOct 1983Yes
42-4790091515082,179 ftApr 2006Yes
42-4790091714062,168 ftApr 2006Yes
42-479009241102,151 ftDec 1985Yes
42-4790093514092,167 ftApr 2006Yes
42-479009422022,189 ftMar 2006Yes
42-479009432012,180 ftMar 2006Yes
42-479009642042,202 ftMar 1985Yes
42-479009652052,202 ftMar 1985Yes
42-479009662062,210 ftMar 2006Yes
42-479009672082,216 ftMar 2006Yes
42-479009782032,236 ftMar 2006Yes
42-4790098820062,208 ftApr 2006Yes
42-4790100513102,224 ftMar 1985Yes
42-4790100613112,237 ftFeb 1986Yes
42-479010154092,209 ftOct 1983Yes
42-4790103012112,252 ftDec 2005Yes
42-4790103412162,250 ftMar 1985Yes
42-4790110215102,190 ftOct 1983Yes
42-4790110315112,206 ftFeb 1986Yes
42-4790110620052,208 ftApr 2006Yes
42-4790110714072,197 ftApr 2006Yes
42-4790123316032,133 ftJun 2006Yes
42-4790125410062,183 ftApr 1986Yes
42-4790125710032,171 ftMay 2006Yes
42-4790125810022,182 ftMay 2006Yes
42-4790125910012,211 ftFeb 1986Yes
42-4790126020042,212 ftApr 2006Yes
42-4790126114012,173 ftApr 2006Yes
42-4790126619082,153 ftMay 2006Yes
42-4790127419072,146 ftMay 2006Yes
42-479012835012,178 ftOct 1983Yes
42-4790128420082,221 ftMar 1985Yes
42-4790128520092,223 ftApr 2006Yes
42-4790128620102,224 ftMar 2006Yes
42-47904602905 A2,157 ftMay 2006Yes
42-479312552209Yes
42-479312567022,250 ftApr 2006Yes
42-4793143322102,257 ftMar 2006Yes
42-4793143540122,270 ftMar 2006Yes
42-4798029111Yes
42-4798029221Yes
42-4798029322Yes
42-4798029423Yes
42-4798029524Yes
42-4798029726Yes
42-4798029827Yes
42-4798029928Yes
42-4798030031Yes
42-4798030132Yes
42-4798030239Yes
42-4798030341Yes
42-4798030442Yes
42-4798030544Yes
42-4798030645Yes
42-4798030747Yes
42-4798030848Yes
42-4798030949Yes
42-4798031051Yes
42-4798031163Yes
42-4798031271Yes
42-4798031384Yes
42-4798031486Yes
42-4798031592Yes
42-4798031693Yes
42-4798031794Yes
42-4798031895 AYes
42-47980320102Yes
42-47980321103Yes
42-47980322107Yes
42-47980323112Yes
42-47980324113Yes
42-47980325114Yes
42-47980326115Yes
42-47980327116Yes
42-47980328129Yes
42-47980329131Yes
42-47980330132Yes
42-47980331133Yes
42-47980332134Yes
42-47980333135Yes
42-47980334136Yes
42-47980335137Yes
42-47980336138Yes
42-47980337139Yes
42-47980338141Yes
42-47980339142Yes
42-47980340143Yes
42-47980341144Yes
42-47980342145Yes
42-47980343146Yes
42-47980344147Yes
42-47980345148Yes
42-47980346149Yes
42-47980347151Yes
42-47980348157Yes
42-47980349158Yes
42-47980350161Yes
42-47980351163Yes
42-47980352164Yes
42-47980353172Yes
42-47980354175Yes
42-47980355194Yes
42-47980356197Yes
42-47980357198Yes
42-479803581992,142 ftOct 1983Yes
42-47980361211Yes
42-47980362212Yes
42-47980363213Yes
42-47980364214Yes
42-47980365221Yes
42-47980366222Yes
42-47980367223Yes
42-47980368225Yes
42-47980369231Yes
42-479803703012,285 ftFeb 2006Yes
42-479803713022,261 ftFeb 2006Yes
42-4798037430132,257 ftFeb 2006Yes
42-479803753202,284 ftDec 2005Yes
42-479803763212,287 ftJan 2006Yes
42-47980377322Yes
42-47980378323Yes
42-479803793242,288 ftJan 2006Yes
42-479803804012,206 ftMar 1985Yes
42-479803814022,205 ftMar 1985Yes
42-479803824042,249 ftOct 1983Yes
42-479803834052,194 ftMar 1985Yes
42-479803844072,190 ftOct 1983Yes
42-479803854082,211 ftOct 1983Yes
42-47980387411Yes
42-479803926032,245 ftFeb 1986Yes
42-479803937012,550 ftApr 2006Yes
42-47980395801Yes
42-479803968042,228 ftFeb 1986Yes
42-479803989022,184 ftOct 1983Yes
42-479803999032,175 ftOct 1983Yes
42-479804009042,150 ftOct 1983Yes
42-4798040510042,193 ftMar 1985Yes
42-4798040910103,064 ftFeb 1986Yes
42-4798041111022,262 ftOct 1983Yes
42-4798041411052,232 ftOct 1983Yes
42-4798041612092,193 ftMar 1985Yes
42-479804191217Yes
42-4798042013012,218 ftOct 1983Yes
42-4798042113022,209 ftOct 1983Yes
42-4798042213032,218 ftDec 2005Yes
42-4798042313042,232 ftOct 1983Yes
42-4798042413052,226 ftOct 1983Yes
42-4798042513062,238 ftJan 2006Yes
42-4798042613072,235 ftJan 2006Yes
42-4798042713082,250 ftOct 1983Yes
42-4798042813092,235 ftOct 1983Yes
42-4798043214022,158 ftOct 1983Yes
42-4798043414042,194 ftMar 1985Yes
42-4798043514052,212 ftMar 1985Yes
42-4798043814082,176 ftOct 1983Yes
42-4798044115012,195 ftMar 1985Yes
42-479804421503Yes
42-4798044315072,162 ftOct 1983Yes
42-4798044817022,219 ftMar 1985Yes
42-4790103212142,260 ftJun 2010Apr 2013Yes
42-4790099421032,234 ftMay 2010Apr 1991Yes
42-4793511023032,360 ftSep 1991May 2006Yes
42-4793510922132,310 ftOct 1990Mar 2006Yes
42-4790103112122,251 ftOct 1990Apr 2013Yes
42-4793142915122,295 ftSep 1990Apr 2006Yes
42-4798041311042,237 ftAug 1989Dec 2005Yes
42-4790099321022,240 ftAug 1989Dec 2005Yes
42-4790091314102,276 ftAug 1989May 2006Yes
42-4790103312152,276 ftAug 1989Dec 2005Yes
42-4790125223012,160 ftAug 1989May 2006Yes
42-4798043314032,152 ftAug 1989May 2006Yes
42-479337155032,259 ftFeb 1984Aug 1985Yes
42-479325519072,234 ftFeb 1980May 2006Yes
42-4793143413122,240 ftApr 1977Feb 2006Yes
42-4793067110122,226 ftSep 1974Mar 2006Yes
42-4793036340112,231 ftApr 1972Mar 2006Yes
42-479009368063,049 ftApr 1959Feb 1993Yes
42-4793255022112,245 ft1958Mar 2006Yes
42-4798046922032,174 ftNov 1956Mar 2006Yes
42-4798046020072,240 ftOct 1936Apr 1991Yes
42-4790123416042,154 ftSep 1936Jun 2006Yes
42-479803916022,240 ftAug 1936Oct 1989Yes
42-4798041511062,239 ftAug 1936Dec 2005Yes
42-4790125310072,175 ftAug 1936May 2006Yes
42-4790125510052,171 ftJul 1936May 2006Yes
42-479010176012,285 ftJun 1936Feb 1993Yes
42-479010893082,250 ftJun 1936Oct 1989Yes
42-479010903092,259 ftJun 1936Aug 1989Yes
42-479009792072,244 ftMay 1936Apr 1991Yes
42-4790123917012,205 ftApr 1936May 1988Yes
42-4798041712102,261 ftApr 1936Oct 1989Yes
42-4790110420012,234 ftMar 1936Apr 1991Yes
42-479806753052,255 ftFeb 1936Feb 2006Yes
42-479806743032,281 ftJan 1936Feb 2006Yes
42-4790128220022,223 ft1936Oct 1989Yes
42-47980296252,334 ft1936Jan 2006Yes
42-4798046321012,248 ft1936Dec 2005Yes
42-4798067611012,254 ftDec 1935Jan 2006Yes

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 (183)

Volume × price = value, one row per cycle. The price columns are the same series published on the prices page — nothing here is modelled.

183 months

Mar 200800101.909.66$0
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 20050061.4512.08$0
Aug 20050061.519.80$0
Jul 20050055.697.84$0
Jun 20050052.337.38$0
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 20040042.375.55$0
Jul 20040038.286.08$0
Jun 20040036.106.43$0
May 20040037.486.49$0
Apr 20040034.475.86$0
Mar 20040034.365.53$0
Feb 20040032.455.51$0
Jan 20040032.036.30$0
Dec 20030030.266.30$0
Nov 20030028.804.60$0
Oct 20030028.174.76$0
Sep 20030026.314.75$0
Aug 20030029.765.13$0
Jul 20030029.415.17$0
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 1999465019.262.88$8,956
Jul 19990017.892.37$0
Jun 19990015.942.36$0
May 19990015.792.32$0
Apr 19990015.102.21$0
Mar 19990112.471.84$2
Feb 1999019.981.82$2
Jan 19990010.381.90$0
Dec 1998019.201.77$2
Nov 19980110.892.19$2
Oct 19981,024112.421.97$12,720
Sep 19981,074112.592.08$13,524
Aug 1998326111.301.91$3,686
Jul 19982,224111.742.24$26,112
Jun 1998971111.242.24$10,916
May 19982,085112.622.21$26,315
Apr 19981,285113.042.51$16,759
Mar 19981,625112.802.31$20,802
Feb 1998983113.952.30$13,715
Jan 19982,382114.702.15$35,018
Dec 19971,280116.322.41$20,892
Nov 19972,035118.193.09$37,020
Oct 19971,117119.253.15$21,505
Sep 19971,324117.742.95$23,491
Aug 19971,828017.862.55$32,648
Jul 19971,908017.582.25$33,543
Jun 19971,980017.242.26$34,135
May 19971,819018.972.31$34,506
Apr 19971,884017.882.08$33,686
Mar 19972,166018.951.94$41,046
Feb 19972,005020.492.21$41,082
Jan 19972,486023.483.54$58,371
Dec 19962,457023.32$57,297
Nov 19962,277021.97$50,026
Oct 19961,890023.31$44,056
Sep 19963,115022.22$69,215
Aug 19961,398020.26$28,323
Jul 19962,691019.55$52,609
Jun 19962,351018.73$44,034
May 19962,260019.43$43,912
Apr 19963,153021.51$67,821
Mar 19962,342019.38$45,388
Feb 19962,374016.98$40,311
Jan 19962,886017.07$49,264
Dec 19952,305017.19$39,623
Nov 19951,907016.00$30,512
Oct 19952,349015.43$36,245
Sep 19952,784016.18$45,045
Aug 19952,346015.92$37,348
Jul 19952,338015.24$35,631
Jun 19951,885016.41$30,933
May 19953,314017.56$58,194
Apr 19952,360017.73$41,843
Mar 19952,288016.44$37,615
Feb 19952,317016.58$38,416
Jan 19952,860015.92$45,531
Dec 19942,382015.03$35,801
Nov 19942,846015.90$45,251
Oct 19942,791015.58$43,484
Sep 19942,369115.29$36,222
Aug 19942,350116.13$37,906
Jul 19942,763117.56$48,518
Jun 19942,781117.09$47,527
May 19942,797115.88$44,416
Apr 19942,811114.14$39,748
Mar 19942,368112.46$29,505
Feb 19943,289112.50$41,113
Jan 19942,864112.66$36,258
Dec 19932,858112.33$35,239
Nov 19932,835114.49$41,079
Oct 19932,771115.85$43,920
Sep 19932,837115.03$42,640
Aug 19932,816115.66$44,099
Jul 19933,110115.46$48,081
Jun 19933,179116.79$53,375
May 19932,767117.68$48,921
Apr 19933,334118.05$60,179
Mar 19932,850118.14$51,699
Feb 19932,804117.90$50,192
Jan 19933,322116.93$56,241

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.

Aug 1999 — as filed, then multipliedworked
Oil                  465 bbl  × $ 19.26 =     $8,956
Casinghead gas         0 Mcf  × $  2.88 =         $0

────────────────────────────────────────────────────
Month total                                   $8,956

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/4390 is the state's own key, not one this site invented.