ARCO FEE "26"

Operated by ROCK FISH OPERATING LLC (P-5 722825) in the EMERALD (SILURIAN) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 66413District 8AField 28873500Hydrogen sulphide fieldOilCasinghead gasSaveExport
Value, all time
$10.3 M
Jan 1993 – May 2026
Value, last 12 filed months
$139 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 5 leases and 5 wells, and the rule below applies to all of them.

Discovered
1988-04-02
as the register files it
Field class
Oil
the register's own label
Between wells
1,320 ft
minimum
From a lease line
660 ft
minimum

A drilling unit in this field needs at least 80 acres. The field rule took effect on 1988-12-01.

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.

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
OilDisposition345,395 bbl$10,334,916
Casinghead gasProduction129 Mcf$280
Total$10,335,196

48 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 32.9534, -102.7501. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.0 miles.

32.95337, -102.75014 · 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
12,410 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 12,410 ft.

Completions filed
Jul 1992
1 of 1 wells

1 well

42-16534090112,410 ftJul 1992

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 202600106.413.05$0
Apr 2026158098.932.87$15,631
Mar 2026167089.753.15$14,988
Feb 2026160063.503.75$10,160
Jan 2026172059.138.00$10,170
Dec 2025181056.664.41$10,255
Nov 2025353058.593.93$20,682
Oct 2025184059.383.30$10,926
Sep 2025162062.743.08$10,164
Aug 2025187063.933.01$11,955
Jul 2025185066.743.32$12,347
Jun 2025178066.483.13$11,833
May 20250060.553.23$0
Apr 2025160062.363.54$9,978
Mar 2025186067.704.27$12,592
Feb 2025189070.884.34$13,396
Jan 2025376074.324.28$27,944
Dec 2024185068.993.12$12,763
Nov 2024186069.052.20$12,843
Oct 2024377071.372.28$26,906
Sep 2024371069.612.36$25,825
Aug 2024546075.632.06$41,294
Jul 20240079.932.15$0
Jun 20240078.082.63$0
May 20240078.812.20$0
Apr 20240084.451.66$0
Mar 20240080.301.55$0
Feb 2024350076.091.78$26,632
Jan 20240073.023.30$0
Dec 20230071.262.61$0
Nov 20230077.892.81$0
Oct 20230085.443.09$0
Sep 2023177089.042.74$15,760
Aug 2023167080.522.67$13,447
Jul 2023181074.852.64$13,548
Jun 2023158068.962.26$10,896
May 2023178070.622.23$12,570
Apr 2023185078.122.24$14,452
Mar 2023168072.852.39$12,239
Feb 2023181075.112.47$13,595
Jan 2023184076.533.39$14,082
Dec 2022184076.415.73$14,059
Nov 2022185085.005.65$15,725
Oct 2022183087.185.86$15,954
Sep 2022165084.888.16$14,005
Aug 2022348094.529.13$32,893
Jul 20221630101.587.54$16,558
Jun 20224470115.097.98$51,445
May 202200109.378.43$0
Apr 20225030104.226.84$52,423
Mar 20221640108.885.08$17,856
Feb 20220091.054.86$0
Jan 20220081.844.54$0
Dec 2021163071.323.90$11,625
Nov 2021494077.435.24$38,250
Oct 2021171079.795.71$13,644
Sep 2021166069.865.35$11,597
Aug 2021176066.024.22$11,620
Jul 2021165070.783.98$11,679
Jun 2021179069.493.38$12,439
May 2021161063.483.02$10,220
Apr 20210060.362.76$0
Mar 2021160061.302.72$9,808
Feb 2021189057.805.55$10,924
Jan 2021184050.412.81$9,275
Dec 2020179044.642.68$7,991
Nov 2020163038.772.71$6,320
Oct 2020489036.972.48$18,078
Sep 20200037.091.99$0
Aug 2020164039.982.39$6,557
Jul 20200038.371.83$0
Jun 2020396034.901.69$13,820
May 20200016.921.81$0
Apr 2020390014.751.80$5,753
Mar 20200030.341.86$0
Feb 2020166049.881.98$8,280
Jan 2020329057.252.09$18,835
Dec 2019337059.012.30$19,886
Nov 2019165055.302.75$9,125
Oct 2019345053.472.42$18,447
Sep 2019334055.052.66$18,387
Aug 2019327053.112.30$17,367
Jul 20190056.272.46$0
Jun 2019324052.782.49$17,101
May 2019333058.482.74$19,474
Apr 2019317062.632.75$19,854
Mar 20190056.803.06$0
Feb 20190050.852.79$0
Jan 2019320046.033.23$14,730
Dec 20180046.594.19$0
Nov 2018323052.934.24$17,096
Oct 2018327061.443.40$20,091
Sep 2018164059.543.11$9,765
Aug 2018331059.403.07$19,661
Jul 2018325065.142.93$21,171
Jun 2018163060.183.08$9,809
May 2018489065.382.90$31,971
Apr 2018161063.842.90$10,278
Mar 2018318061.222.79$19,468
Feb 2018276061.782.77$17,051
Jan 2018495062.874.01$31,121
Dec 20170057.272.92$0
Nov 20170055.423.12$0
Oct 2017147049.292.98$7,246
Sep 2017164047.523.09$7,793
Aug 2017317045.373.00$14,382
Jul 2017324043.873.09$14,214
Jun 2017329042.493.09$13,979
May 2017328045.373.26$14,881
Apr 2017165047.933.21$7,908
Mar 2017430046.772.98$20,111
Feb 2017331050.452.95$16,699
Jan 2017327049.413.42$16,157
Dec 2016166048.763.72$8,094
Nov 2016332042.492.64$14,107
Oct 2016328046.193.09$15,150
Sep 2016329041.553.10$13,670
Aug 2016328041.442.92$13,592
Jul 2016163041.622.92$6,784
Jun 2016326045.352.69$14,784
May 2016325042.521.99$13,819
Apr 2016165036.561.99$6,032
Mar 2016329033.011.79$10,860
Feb 2016330026.472.06$8,735
Jan 2016327027.352.36$8,943
Dec 2015330032.362.00$10,679
Nov 2015165038.792.17$6,400
Oct 2015309043.552.43$13,457
Sep 2015333042.992.76$14,316
Aug 2015304040.162.87$12,209
Jul 2015324048.152.95$15,601
Jun 2015312056.152.88$17,519
May 2015302055.212.96$16,673
Apr 2015326049.822.71$16,241
Mar 2015287042.892.93$12,309
Feb 2015308044.662.98$13,755
Jan 2015328043.433.10$14,245
Dec 2014335054.693.59$18,321
Nov 2014254070.464.25$17,897
Oct 2014335078.303.90$26,231
Sep 2014337086.164.05$29,036
Aug 2014328089.394.04$29,320
Jul 2014332096.564.18$32,058
Jun 2014162098.164.74$15,902
May 2014478094.734.73$45,281
Apr 2014318095.944.81$30,509
Mar 2014327095.895.06$31,356
Feb 2014325097.406.19$31,655
Jan 2014166090.404.86$15,006
Dec 2013433091.824.35$39,758
Nov 2013289088.853.74$25,678
Oct 2013332097.423.78$32,343
Sep 20131610104.113.72$16,762
Aug 20134900104.253.52$51,083
Jul 20133320102.523.72$34,037
Jun 2013327094.403.93$30,869
May 2013151094.834.15$14,319
Apr 2013648093.964.28$60,886
Mar 2013334093.623.91$31,269
Feb 2013339091.233.42$30,927
Jan 2013339091.603.42$31,052
Dec 2012334086.773.42$28,981
Nov 2012167086.953.62$14,521
Oct 2012467089.383.40$41,740
Sep 2012166094.672.92$15,715
Aug 2012324092.662.91$30,022
Jul 2012314085.133.02$26,731
Jun 2012499079.822.52$39,830
May 2012320091.612.49$29,315
Apr 20121680101.652.00$17,077
Mar 20123530105.052.22$37,083
Feb 20124820101.102.57$48,730
Jan 2012649098.092.73$63,660
Dec 20110096.873.24$0
Nov 2011681095.723.31$65,185
Oct 20110084.983.65$0
Sep 20110083.623.99$0
Aug 2011301083.404.15$25,103
Jul 2011829094.144.52$78,042
Jun 2011158092.904.64$14,678
May 20110098.134.40$0
Apr 20113330105.964.33$35,285
Mar 2011333096.364.06$32,088
Feb 2011169085.644.18$14,473
Jan 2011171086.504.59$14,792
Dec 2010461085.734.35$39,522
Nov 2010329080.843.80$26,596
Oct 2010445078.103.51$34,755
Sep 2010163072.633.98$11,839
Aug 2010515073.684.42$37,945
Jul 2010338072.554.74$24,522
Jun 2010330070.364.91$23,219
May 2010607071.124.24$43,170
Apr 2010608081.694.12$49,668
Mar 20100078.394.39$0
Feb 2010332073.585.44$24,429
Jan 2010484074.365.96$35,990
Dec 2009300071.445.48$21,432
Nov 2009427074.593.75$31,850
Oct 2009316072.544.11$22,923
Sep 2009923065.543.06$60,493
Aug 20090067.423.22$0
Jul 2009487061.133.46$29,770
Jun 2009311066.163.90$20,576
May 2009367054.743.93$20,090
Apr 2009457046.773.59$21,374
Mar 2009616042.144.06$25,958
Feb 2009128032.814.63$4,200
Jan 2009417035.865.37$14,954
Dec 2008445037.105.98$16,510
Nov 2008477055.496.86$26,469
Oct 2008507075.246.92$38,147
Sep 20083340101.767.88$33,988
Aug 20084910114.228.48$56,082
Jul 20084400131.0811.39$57,675
Jun 20085010131.3313.03$65,796
May 20084760123.1711.57$58,629
Apr 20085030110.3110.45$55,486
Mar 20083350101.909.66$34,137
Feb 2008652092.538.77$60,330
Jan 2008295090.388.21$26,662
Dec 2007517088.337.30$45,667
Nov 2007509091.677.29$46,660
Oct 2007438082.856.92$36,288
Sep 2007490075.846.24$37,162
Aug 2007520069.066.39$35,911
Jul 2007493070.906.39$34,954
Jun 2007671062.007.55$41,602
May 2007309058.747.85$18,151
Apr 2007675059.617.81$40,237
Mar 2007502056.927.30$28,574
Feb 2007459055.108.22$25,291
Jan 2007335050.306.73$16,851
Dec 2006337056.656.92$19,091
Nov 2006604054.207.62$32,737
Oct 2006503054.906.01$27,615
Sep 2006663060.085.04$39,833
Aug 2006505068.717.34$34,699
Jul 2006499069.376.34$34,616
Jun 2006509066.286.38$33,737
May 2006669066.016.42$44,161
Apr 2006496064.397.36$31,937
Mar 2006657056.707.08$37,252
Feb 2006997057.597.75$57,417
Jan 2006339060.598.93$20,540
Dec 2005336054.9413.42$18,460
Nov 2005613054.6910.59$33,525
Oct 2005671058.3413.80$39,146
Sep 2005667061.4512.08$40,987
Aug 2005702061.519.80$43,180
Jul 2005698055.697.84$38,872
Jun 2005677052.337.38$35,427
May 2005348045.226.65$15,737
Apr 2005672049.207.36$33,062
Mar 2005700050.377.15$35,259
Feb 2005351045.226.31$15,872
Jan 20051,023043.166.32$44,153
Dec 2004514039.866.75$20,488
Nov 2004354045.286.33$16,029
Oct 2004880049.706.52$43,736
Sep 2004351043.245.28$15,177
Aug 2004701042.375.55$29,701
Jul 2004875038.286.08$33,495
Jun 2004335036.106.43$12,094
May 2004709037.486.49$26,573
Apr 2004506034.475.86$17,442
Mar 2004864034.365.53$29,687
Feb 2004515032.455.51$16,712
Jan 20041,037032.036.30$33,215
Dec 2003342030.266.30$10,349
Nov 2003677028.804.60$19,498
Oct 2003530128.174.76$14,935
Sep 2003701026.314.75$18,443
Aug 2003687129.765.13$20,450
Jul 2003856129.415.17$25,180
Jun 2003353128.565.98$10,088
May 2003866126.595.97$23,033
Apr 2003706126.675.41$18,834
Mar 2003536131.146.10$16,697
Feb 2003697133.487.93$23,343
Jan 2003709130.315.58$21,495
Dec 2002873126.914.85$23,497
Nov 2002852124.664.14$21,014
Oct 2002333126.464.23$8,815
Sep 2002683127.443.64$18,745
Aug 2002860125.963.16$22,329
Jul 20021,211124.583.06$29,769
Jun 2002352123.733.34$8,356
May 2002892124.663.58$22,000
Apr 2002361123.653.51$8,541
Mar 2002849122.003.10$18,681
Feb 2002687118.222.38$12,520
Jan 2002691117.172.38$11,867
Dec 2001889116.932.36$15,053
Nov 20011,038118.072.41$18,759
Oct 2001355119.782.53$7,024
Sep 20011,243124.262.25$30,157
Aug 2001180124.873.05$4,480
Jul 20011,254123.933.20$30,011
Jun 2001340124.563.82$8,354
May 2001721125.524.31$18,404
Apr 2001854124.685.34$21,082
Mar 2001703124.545.38$17,257
Feb 2001894127.755.77$24,814
Jan 2001901127.478.40$24,759
Dec 2000355126.889.12$9,552
Nov 2000724132.215.66$23,326
Oct 2000905131.235.15$28,268
Sep 2000726131.875.19$23,143
Aug 2000893129.644.54$26,473
Jul 2000724128.534.09$20,660
Jun 2000890129.304.40$26,081
May 2000542127.263.68$14,779
Apr 2000910124.513.12$22,307
Mar 2000728128.422.86$20,693
Feb 2000921127.622.73$25,441
Jan 2000708125.272.48$17,894
Dec 1999879124.282.42$21,345
Nov 1999922123.192.43$21,384
Oct 19991,107120.982.80$23,228
Sep 1999922121.752.62$20,056
Aug 19991,286119.262.88$24,771
Jul 19991,084117.892.37$19,395
Jun 19991,257115.942.36$20,039
May 19991,090115.792.32$17,213
Apr 19991,082115.102.21$16,340
Mar 19991,450112.471.84$18,083
Feb 199991819.981.82$9,163
Jan 19991,301110.381.90$13,506
Dec 199872419.201.77$6,663
Nov 19981,225110.892.19$13,342
Oct 19981,635112.421.97$20,309
Sep 1998729112.592.08$9,180
Aug 19981,254111.301.91$14,172
Jul 19981,443111.742.24$16,943
Jun 19981,452111.242.24$16,323
May 1998901112.622.21$11,373
Apr 19981,257113.042.51$16,394
Mar 19981,236112.802.31$15,823
Feb 19981,100113.952.30$15,347
Jan 19981,442114.702.15$21,200
Dec 19971,412116.322.41$23,046
Nov 19971,415118.193.09$25,742
Oct 19971,087119.253.15$20,928
Sep 19971,462117.742.95$25,939
Aug 19971,259117.862.55$22,488
Jul 19971,276117.582.25$22,434
Jun 19971,419117.242.26$24,466
May 19971,437118.972.31$27,262
Apr 19971,388117.882.08$24,820
Mar 19971,434118.951.94$27,176
Feb 19971,358120.492.21$27,828
Jan 19971,728123.483.54$40,577
Dec 19961,851123.32$43,165
Nov 19961,142121.97$25,090
Oct 19961,650123.31$38,462
Sep 19961,641122.22$36,463
Aug 19961,640120.26$33,226
Jul 19961,685119.55$32,942
Jun 19961,833118.73$34,332
May 19961,716119.43$33,342
Apr 19961,639121.51$35,255
Mar 19961,773119.38$34,361
Feb 19961,762116.98$29,919
Jan 19961,902117.07$32,467
Dec 19951,955117.19$33,606
Nov 19951,961116.00$31,376
Oct 19952,028115.43$31,292
Sep 19951,911116.18$30,920
Aug 19952,079115.92$33,098
Jul 19951,936115.24$29,505
Jun 19952,125116.41$34,871
May 19952,059117.56$36,156
Apr 19951,943117.73$34,449
Mar 19952,234116.44$36,727
Feb 19951,944116.58$32,232
Jan 19952,491115.92$39,657
Dec 19942,295115.03$34,494
Nov 19942,544115.90$40,450
Oct 19941,868115.58$29,103
Sep 19943,185115.29$48,699
Aug 19943,911116.13$63,084
Jul 19944,047117.56$71,065
Jun 19943,978117.09$67,984
May 19944,367115.88$69,348
Apr 19944,144114.14$58,596
Mar 19944,655112.46$58,001
Feb 19944,759112.50$59,488
Jan 19945,749112.66$72,782
Dec 19937,343112.33$90,539
Nov 19937,687114.49$111,385
Oct 19938,034115.85$127,339
Sep 19936,112115.03$91,863
Aug 19937,959115.66$124,638
Jul 19936,815115.46$105,360
Jun 19936,843116.79$114,894
May 19937,661117.68$135,446
Apr 19937,660118.05$138,263
Mar 19937,758118.14$140,730
Feb 19937,054117.90$126,267
Jan 19937,762116.93$131,411

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.

Apr 2026 — as filed, then multipliedworked
Oil                  158 bbl  × $ 98.93 =    $15,631
Casinghead gas         0 Mcf  × $  2.87 =         $0

────────────────────────────────────────────────────
Month total                                  $15,631

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/66413 is the state's own key, not one this site invented.