RICHARDSON UNIT -A-

Operated by CHOLLA PETROLEUM, INC. (P-5 150683) in the P. H. D. field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 13106District 8AField 68101001Hydrogen sulphide fieldOilCasinghead gasSaveExport
Value, all time
$5.2 M
Jan 1993 – Jan 2026
Value, last 12 filed months
$74 k
at the published price for each month
Months reported
397
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 35 leases and 206 wells, and the rule below applies to all of them.

Discovered
1944-06-20
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 20 acres.

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: SWR 48.

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
OilDisposition94,408 bbl$5,195,915
Casinghead gasProduction2,797 Mcf$19,785
Total$5,215,700

28 Mcf of this lease's gas, across 28 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 (5)

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 33.2587, -101.4785. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.4 miles.

33.25816, -101.47819 · 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 5 wells
With a plug date
0.0%
0 of 5 wells
Median depth
3,750 ft
3 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.
5100.0%

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

Between 3,650 and 3,779 ft, median 3,750 ft, over the 3 wells that filed a depth.

Completions filed
Nov 2006 – Apr 2025
3 of 5 wells; 2 filed none

5 wells

42-169004341
42-169004352
42-1693381353,779 ftApr 2025
42-1690043633,650 ftFeb 2025
42-1693375143,750 ftNov 2006

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 (397)

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

397 months

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 2025727067.704.27$49,218
Feb 2025349070.884.34$24,737
Jan 2025171074.324.28$12,709
Dec 20240068.993.12$0
Nov 20240069.052.20$0
Oct 20240071.372.28$0
Sep 20240069.612.36$0
Aug 2024174075.632.06$13,160
Jul 20240079.932.15$0
Jun 20240078.082.63$0
May 20240078.812.20$0
Apr 20240084.451.66$0
Mar 2024177080.301.55$14,213
Feb 20240076.091.78$0
Jan 20240073.023.30$0
Dec 2023177071.262.61$12,613
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 2023181068.962.26$12,482
May 20230070.622.23$0
Apr 20230078.122.24$0
Mar 2023191072.852.39$13,914
Feb 20230075.112.47$0
Jan 2023163076.533.39$12,474
Dec 20220076.415.73$0
Nov 2022175085.005.65$14,875
Oct 20220087.185.86$0
Sep 20220084.888.16$0
Aug 2022177094.529.13$16,730
Jul 202200101.587.54$0
Jun 202200115.097.98$0
May 20221570109.378.43$17,171
Apr 202200104.226.84$0
Mar 20221720108.885.08$18,727
Feb 20220091.054.86$0
Jan 2022178081.844.54$14,568
Dec 20210071.323.90$0
Nov 2021167077.435.24$12,931
Oct 20210079.795.71$0
Sep 2021170069.865.35$11,876
Aug 20210066.024.22$0
Jul 2021159070.783.98$11,254
Jun 20210069.493.38$0
May 2021166063.483.02$10,538
Apr 20210060.362.76$0
Mar 2021183061.302.72$11,218
Feb 20210057.805.55$0
Jan 20210050.412.81$0
Dec 2020168044.642.68$7,500
Nov 2020170038.772.71$6,591
Oct 20200036.972.48$0
Sep 20200037.091.99$0
Aug 2020176039.982.39$7,036
Jul 2020168038.371.83$6,446
Jun 20200034.901.69$0
May 2020173016.921.81$2,927
Apr 20200014.751.80$0
Mar 20200030.341.86$0
Feb 2020174049.881.98$8,679
Jan 20200057.252.09$0
Dec 2019186059.012.30$10,976
Nov 2019179055.302.75$9,899
Oct 20190053.472.42$0
Sep 2019177055.052.66$9,744
Aug 20190053.112.30$0
Jul 2019172056.272.46$9,678
Jun 2019171052.782.49$9,025
May 20190058.482.74$0
Apr 2019125062.632.75$7,829
Mar 2019167056.803.06$9,486
Feb 20190050.852.79$0
Jan 2019173046.033.23$7,963
Dec 20180046.594.19$0
Nov 2018173052.934.24$9,157
Oct 20180061.443.40$0
Sep 2018175059.543.11$10,420
Aug 2018166059.403.07$9,860
Jul 2018161065.142.93$10,488
Jun 2018165060.183.08$9,930
May 20180065.382.90$0
Apr 2018173063.842.90$11,044
Mar 2018172061.222.79$10,530
Feb 2018169061.782.77$10,441
Jan 20180062.874.01$0
Dec 2017174057.272.92$9,965
Nov 2017174055.423.12$9,643
Oct 2017168049.292.98$8,281
Sep 2017171047.523.09$8,126
Aug 20170045.373.00$0
Jul 2017178043.873.09$7,809
Jun 2017168042.493.09$7,138
May 2017168045.373.26$7,622
Apr 2017168047.933.21$8,052
Mar 2017170046.772.98$7,951
Feb 2017178050.452.95$8,980
Jan 20170049.413.42$0
Dec 2016150048.763.72$7,314
Nov 2016254042.492.64$10,792
Oct 2016159046.193.09$7,344
Sep 2016172041.553.10$7,147
Aug 2016177041.442.92$7,335
Jul 2016157041.622.92$6,534
Jun 2016144045.352.69$6,530
May 2016171042.521.99$7,271
Apr 2016176036.561.99$6,435
Mar 2016178033.011.79$5,876
Feb 2016179026.472.06$4,738
Jan 2016183027.352.36$5,005
Dec 20150032.362.00$0
Nov 2015358038.792.17$13,887
Oct 201576043.552.43$3,310
Sep 2015174042.992.76$7,480
Aug 2015174040.162.87$6,988
Jul 2015172048.152.95$8,282
Jun 2015538056.152.88$30,209
May 20150055.212.96$0
Apr 2015179049.822.71$8,918
Mar 2015177042.892.93$7,592
Feb 20150044.662.98$0
Jan 2015174043.433.10$7,557
Dec 20140054.693.59$0
Nov 2014364070.464.25$25,647
Oct 20140078.303.90$0
Sep 2014176086.164.05$15,164
Aug 20140089.394.04$0
Jul 2014347096.564.18$33,506
Jun 2014174098.164.74$17,080
May 2014185094.734.73$17,525
Apr 201424817895.944.81$24,649
Mar 2014179095.895.06$17,164
Feb 2014180097.406.19$17,532
Jan 2014181090.404.86$16,362
Dec 2013184091.824.35$16,895
Nov 2013353088.853.74$31,364
Oct 20130097.423.78$0
Sep 20131750104.113.72$18,219
Aug 20133620104.253.52$37,739
Jul 20131810102.523.72$18,556
Jun 2013175094.403.93$16,520
May 2013180094.834.15$17,069
Apr 2013183093.964.28$17,195
Mar 2013174093.623.91$16,290
Feb 2013181091.233.42$16,513
Jan 2013350091.603.42$32,060
Dec 2012181086.773.42$15,705
Nov 2012180086.953.62$15,651
Oct 2012352089.383.40$31,462
Sep 2012354094.672.92$33,513
Aug 20120092.662.91$0
Jul 2012170085.133.02$14,472
Jun 2012357079.822.52$28,496
May 2012170091.612.49$15,574
Apr 20123700101.652.00$37,611
Mar 20121780105.052.22$18,699
Feb 20123460101.102.57$34,981
Jan 2012357098.092.73$35,018
Dec 2011178096.873.24$17,243
Nov 2011177095.723.31$16,942
Oct 2011169084.983.65$14,362
Sep 2011179083.623.99$14,968
Aug 2011171083.404.15$14,261
Jul 2011180094.144.52$16,945
Jun 2011173092.904.64$16,072
May 2011147098.134.40$14,425
Apr 20113580105.964.33$37,934
Mar 2011182096.364.06$17,538
Feb 2011185085.644.18$15,843
Jan 2011368086.504.59$31,832
Dec 2010373085.734.35$31,977
Nov 2010361080.843.80$29,183
Oct 2010548078.103.51$42,799
Sep 2010354072.633.98$25,711
Aug 2010353073.684.42$26,009
Jul 2010482072.554.74$34,969
Jun 2010361070.364.91$25,400
May 2010179071.124.24$12,730
Apr 2010516081.694.12$42,152
Mar 2010360078.394.39$28,220
Feb 2010548073.585.44$40,322
Jan 2010540074.365.96$40,154
Dec 2009191071.445.48$13,645
Nov 2009540074.593.75$40,279
Oct 2009375072.544.11$27,203
Sep 2009549065.543.06$35,981
Aug 2009534067.423.22$36,002
Jul 2009535061.133.46$32,705
Jun 2009546066.163.90$36,123
May 2009528054.743.93$28,903
Apr 2009519046.773.59$24,274
Mar 2009530042.144.06$22,334
Feb 2009503032.814.63$16,503
Jan 2009520035.865.37$18,647
Dec 2008709037.105.98$26,304
Nov 2008556055.496.86$30,852
Oct 2008879075.246.92$66,136
Sep 20085410101.767.88$55,052
Aug 20085320114.228.48$60,765
Jul 20087220131.0811.39$94,640
Jun 20086880131.3313.03$90,355
May 20087070123.1711.57$87,081
Apr 20088130110.3110.45$89,682
Mar 20084830101.909.66$49,218
Feb 2008706092.538.77$65,326
Jan 2008596090.388.21$53,866
Dec 2007950088.337.30$83,914
Nov 2007747091.677.29$68,477
Oct 2007946082.856.92$78,376
Sep 20077471875.846.24$56,765
Aug 20071,08735269.066.39$77,317
Jul 20071,12541270.906.39$82,394
Jun 20071,10637662.007.55$71,410
May 20071,41037358.747.85$85,750
Apr 200796237159.617.81$60,241
Mar 20071,37842156.927.30$81,510
Feb 20071,02926855.108.22$58,900
Jan 20071,758050.306.73$88,427
Dec 20061,315056.656.92$74,495
Nov 2006915054.207.62$49,593
Oct 2006771054.906.01$42,328
Sep 2006912060.085.04$54,793
Aug 2006675068.717.34$46,379
Jul 20061,004069.376.34$69,647
Jun 2006765066.286.38$50,704
May 2006138066.016.42$9,109
Apr 2006191064.397.36$12,298
Mar 2006184056.707.08$10,433
Feb 2006197057.597.75$11,345
Jan 2006195060.598.93$11,815
Dec 20050054.9413.42$0
Nov 2005198054.6910.59$10,829
Oct 2005389058.3413.80$22,694
Sep 20050061.4512.08$0
Aug 2005194061.519.80$11,933
Jul 2005187055.697.84$10,414
Jun 2005380052.337.38$19,885
May 20050045.226.65$0
Apr 2005166049.207.36$8,167
Mar 2005197050.377.15$9,923
Feb 2005192045.226.31$8,682
Jan 2005200043.166.32$8,632
Dec 2004192039.866.75$7,653
Nov 20040045.286.33$0
Oct 2004198049.706.52$9,841
Sep 2004196043.245.28$8,475
Aug 2004193042.375.55$8,177
Jul 20040038.286.08$0
Jun 20040036.106.43$0
May 2004196037.486.49$7,346
Apr 2004196034.475.86$6,756
Mar 2004192034.365.53$6,597
Feb 2004181032.455.51$5,873
Jan 2004200032.036.30$6,406
Dec 2003198030.266.30$5,991
Nov 2003381028.804.60$10,973
Oct 2003193028.174.76$5,437
Sep 2003195026.314.75$5,130
Aug 2003194029.765.13$5,773
Jul 2003194029.415.17$5,706
Jun 2003195028.565.98$5,569
May 2003195026.595.97$5,185
Apr 20030026.675.41$0
Mar 20030031.146.10$0
Feb 2003163033.487.93$5,457
Jan 2003367030.315.58$11,124
Dec 20020026.914.85$0
Nov 2002178024.664.14$4,389
Oct 2002178026.464.23$4,710
Sep 20020027.443.64$0
Aug 2002178025.963.16$4,621
Jul 20020024.583.06$0
Jun 2002354023.733.34$8,400
May 2002179024.663.58$4,414
Apr 20020023.653.51$0
Mar 2002179022.003.10$3,938
Feb 2002175018.222.38$3,189
Jan 20020017.172.38$0
Dec 2001360016.932.36$6,095
Nov 20010018.072.41$0
Oct 2001175019.782.53$3,462
Sep 2001178024.262.25$4,318
Aug 2001179024.873.05$4,452
Jul 20010023.933.20$0
Jun 2001173024.563.82$4,249
May 20010025.524.31$0
Apr 2001356024.685.34$8,786
Mar 20010024.545.38$0
Feb 2001175027.755.77$4,856
Jan 2001173027.478.40$4,752
Dec 2000179026.889.12$4,812
Nov 2000177032.215.66$5,701
Oct 20000031.235.15$0
Sep 20000031.875.19$0
Aug 2000332029.644.54$9,840
Jul 20000028.534.09$0
Jun 2000278029.304.40$8,145
May 20000027.263.68$0
Apr 2000309024.513.12$7,574
Mar 20000028.422.86$0
Feb 2000322027.622.73$8,894
Jan 20000025.272.48$0
Dec 1999296024.282.42$7,187
Nov 19990023.192.43$0
Oct 1999369020.982.80$7,742
Sep 19990021.752.62$0
Aug 1999376019.262.88$7,242
Jul 19990017.892.37$0
Jun 1999343015.942.36$5,467
May 19990015.792.32$0
Apr 1999382015.102.21$5,768
Mar 19990012.471.84$0
Feb 199941509.981.82$4,142
Jan 19990010.381.90$0
Dec 199836809.201.77$3,386
Nov 19980010.892.19$0
Oct 1998422012.421.97$5,241
Sep 19980012.592.08$0
Aug 1998316011.301.91$3,571
Jul 1998382011.742.24$4,485
Jun 19980011.242.24$0
May 1998423012.622.21$5,338
Apr 19980013.042.51$0
Mar 1998358012.802.31$4,582
Feb 19980013.952.30$0
Jan 1998370014.702.15$5,439
Dec 19970016.322.41$0
Nov 1997428018.193.09$7,785
Oct 19970019.253.15$0
Sep 1997373017.742.95$6,617
Aug 19970017.862.55$0
Jul 1997247017.582.25$4,342
Jun 1997229017.242.26$3,948
May 1997393018.972.31$7,455
Apr 19970017.882.08$0
Mar 1997356018.951.94$6,746
Feb 1997398020.492.21$8,155
Jan 19970023.483.54$0
Dec 1996375023.32$8,745
Nov 19960021.97$0
Oct 1996391023.31$9,114
Sep 19960022.22$0
Aug 1996411020.26$8,327
Jul 19960019.55$0
Jun 1996297018.73$5,563
May 1996247019.43$4,799
Apr 1996457021.51$9,830
Mar 19960019.38$0
Feb 1996401016.98$6,809
Jan 19960017.07$0
Dec 1995410017.19$7,048
Nov 19950016.00$0
Oct 1995443015.43$6,835
Sep 19950016.18$0
Aug 1995436015.92$6,941
Jul 19950015.24$0
Jun 1995355016.41$5,826
May 1995456017.56$8,007
Apr 19950117.73$0
Mar 1995440116.44$7,234
Feb 19950116.58$0
Jan 1995443115.92$7,053
Dec 19940115.03$0
Nov 1994352115.90$5,597
Oct 1994436115.58$6,793
Sep 19940115.29$0
Aug 1994350116.13$5,646
Jul 1994401117.56$7,042
Jun 1994442117.09$7,554
May 19940115.88$0
Apr 1994321114.14$4,539
Mar 1994461112.46$5,744
Feb 1994439112.50$5,488
Jan 19940112.66$0
Dec 1993401112.33$4,944
Nov 1993328114.49$4,753
Oct 1993372115.85$5,896
Sep 1993424115.03$6,373
Aug 1993346115.66$5,418
Jul 1993411115.46$6,354
Jun 1993413116.79$6,934
May 1993438117.68$7,744
Apr 1993315118.05$5,686
Mar 1993418118.14$7,583
Feb 1993397117.90$7,106
Jan 1993344116.93$5,824

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.

Mar 2025 — as filed, then multipliedworked
Oil                  727 bbl  × $ 67.70 =    $49,218
Casinghead gas         0 Mcf  × $  4.27 =         $0

────────────────────────────────────────────────────
Month total                                  $49,218

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/13106 is the state's own key, not one this site invented.