MARATHON "A"

Operated by MORNINGSTAR OPERATING LLC (P-5 100189) in the WASSON, NE. (CLEAR FORK) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 60898District 8AField 95400333Hydrogen sulphide fieldOilCasinghead gasSaveExport
Value, all time
$10.3 M
Jan 1993 – May 2026
Value, last 12 filed months
$226 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 60 leases and 357 wells, and the rule below applies to all of them.

Discovered
1954-09-03
as the register files it
Field class
Oil
the register's own label
Between wells
933 ft
minimum
From a lease line
467 ft
minimum

A drilling unit in this field needs at least 40 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.

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
OilDisposition255,198 bbl$10,170,269
Casinghead gasProduction39,370 Mcf$85,194
Total$10,255,464

17,995 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 (4)

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 33.0924, -102.7294. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.2 miles.

33.09234, -102.72948 · 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
75.0%
3 of 4 wells
With a plug date
75.0%
3 of 4 wells
Median depth
6,984 ft
4 wells filed one
Completion to plug
44.1 years
median over 3 wells

What the state filed about each well

On the RRC proration schedule
375.0%
A plug date is filed
375.0%
BothOn the schedule and plugged. Neither fact cancels the other.
375.0%
NeitherNo plug date, and not on the schedule.
125.0%

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 6,965 and 7,200 ft, median 6,984 ft, over the 4 wells that filed a depth.

Completions filed
Jul 1972 – Mar 1973
4 of 4 wells
Plug dates filed
May 1990 – Jan 2019
3 of 4 wells; 1 filed none

Last completion to plug: a median of 44.1 years across the 3 wells that filed both dates, with the middle half between 31.0 years and 45.2 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

4 wells

42-5013056047,000 ftMar 1973
42-5013055836,965 ftDec 1972Jan 2017Yes
42-5013054727,200 ftNov 1972Jan 2019Yes
42-5013053516,968 ftJul 1972May 1990Yes

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 20263490106.413.05$37,137
Apr 2026360098.932.87$35,615
Mar 20260089.753.15$0
Feb 2026352063.503.75$22,352
Jan 2026175059.138.00$10,348
Dec 2025342056.664.41$19,378
Nov 2025175058.593.93$10,253
Oct 2025355059.383.30$21,080
Sep 2025179062.743.08$11,230
Aug 2025357063.933.01$22,823
Jul 2025179066.743.32$11,946
Jun 2025352066.483.13$23,401
May 2025496060.553.23$30,033
Apr 2025167062.363.54$10,414
Mar 20250067.704.27$0
Feb 20250070.884.34$0
Jan 2025169074.324.28$12,560
Dec 20240068.993.12$0
Nov 2024342069.052.20$23,615
Oct 2024123071.372.28$8,779
Sep 2024169069.612.36$11,764
Aug 20240075.632.06$0
Jul 2024168079.932.15$13,428
Jun 2024339078.082.63$26,469
May 2024171078.812.20$13,477
Apr 20240084.451.66$0
Mar 2024183080.301.55$14,695
Feb 2024170076.091.78$12,935
Jan 2024339073.023.30$24,754
Dec 20230071.262.61$0
Nov 2023169077.892.81$13,163
Oct 2023168085.443.09$14,354
Sep 2023168089.042.74$14,959
Aug 2023169080.522.67$13,608
Jul 20230074.852.64$0
Jun 2023338068.962.26$23,308
May 2023167070.622.23$11,794
Apr 20230078.122.24$0
Mar 20230072.852.39$0
Feb 20230075.112.47$0
Jan 2023154076.533.39$11,786
Dec 20220076.415.73$0
Nov 20220085.005.65$0
Oct 20220087.185.86$0
Sep 20220084.888.16$0
Aug 20220094.529.13$0
Jul 202200101.587.54$0
Jun 202200115.097.98$0
May 202200109.378.43$0
Apr 202200104.226.84$0
Mar 20221580108.885.08$17,203
Feb 20220091.054.86$0
Jan 20221706281.844.54$14,194
Dec 202106271.323.90$242
Nov 202106077.435.24$314
Oct 202106279.795.71$354
Sep 202106069.865.35$321
Aug 202106266.024.22$262
Jul 202106270.783.98$247
Jun 20213456069.493.38$24,177
May 20211736263.483.02$11,169
Apr 20211726060.362.76$10,547
Mar 20211766261.302.72$10,957
Feb 20211695657.805.55$10,079
Jan 20213446250.412.81$17,515
Dec 20201706244.642.68$7,755
Nov 20201736038.772.71$6,870
Oct 20201706236.972.48$6,439
Sep 20203396037.091.99$12,693
Aug 20203546239.982.39$14,301
Jul 20201706238.371.83$6,636
Jun 20201716034.901.69$6,069
May 20201726216.921.81$3,023
Apr 20203366014.751.80$5,064
Mar 20201736230.341.86$5,364
Feb 20201735849.881.98$8,744
Jan 20201746257.252.09$10,091
Dec 20193466259.012.30$20,560
Nov 20191746055.302.75$9,787
Oct 20191676253.472.42$9,079
Sep 20193446055.052.66$19,097
Aug 20191696253.112.30$9,118
Jul 20193446256.272.46$19,509
Jun 20193446052.782.49$18,306
May 20193456258.482.74$20,346
Apr 20193426062.632.75$21,585
Mar 20190056.803.06$0
Feb 20191715650.852.79$8,852
Jan 20193446246.033.23$16,034
Dec 20181746246.594.19$8,366
Nov 20183436052.934.24$18,409
Oct 20181726261.443.40$10,778
Sep 20181716059.543.11$10,368
Aug 20181716259.403.07$10,348
Jul 20181736265.142.93$11,451
Jun 20182416060.183.08$14,688
May 20183456265.382.90$22,736
Apr 20181706063.842.90$11,027
Mar 20181726261.222.79$10,703
Feb 20183435661.782.77$21,345
Jan 20183686262.874.01$23,385
Dec 20173696257.272.92$21,314
Nov 20173736055.423.12$20,859
Oct 20173696249.292.98$18,373
Sep 20173756047.523.09$18,005
Aug 20175486245.373.00$25,049
Jul 20171746243.873.09$7,825
Jun 20173686042.493.09$15,822
May 20173426245.373.26$15,719
Apr 20173503047.933.21$16,872
Mar 20175266246.772.98$24,786
Feb 20173565650.452.95$18,126
Jan 20173536249.413.42$17,654
Dec 20165236248.763.72$25,732
Nov 20163616042.492.64$15,498
Oct 20163716246.193.09$17,328
Sep 20163736041.553.10$15,684
Aug 20165256241.442.92$21,937
Jul 20163526241.622.92$14,832
Jun 2016361045.352.69$16,371
May 20163556242.521.99$15,218
Apr 20167305636.561.99$26,800
Mar 20165865833.011.79$19,448
Feb 20164815426.472.06$12,844
Jan 20166454427.352.36$17,745
Dec 20154765432.362.00$15,511
Nov 20154876038.792.17$19,021
Oct 20153632943.552.43$15,879
Sep 20153685642.992.76$15,975
Aug 20155515040.162.87$22,272
Jul 20153525248.152.95$17,102
Jun 20157285256.152.88$41,027
May 20155486255.212.96$30,438
Apr 2015553049.822.71$27,550
Mar 20157456042.892.93$32,129
Feb 20153685644.662.98$16,602
Jan 20155536243.433.10$24,209
Dec 20143806054.693.59$20,998
Nov 20145525870.464.25$39,141
Oct 20147246278.303.90$56,931
Sep 20145555886.164.05$48,053
Aug 20145496289.394.04$49,325
Jul 20145346896.564.18$51,847
Jun 20143706098.164.74$36,603
May 20145416294.734.73$51,542
Apr 20145576095.944.81$53,727
Mar 20143736295.895.06$36,080
Feb 20143675697.406.19$36,093
Jan 20145445690.404.86$49,450
Dec 20133536291.824.35$32,682
Nov 20135386088.853.74$48,026
Oct 20135376297.423.78$52,549
Sep 201336960104.113.72$38,640
Aug 201354662104.253.52$57,139
Jul 201371362102.523.72$73,327
Jun 20133616094.403.93$34,314
May 20135126294.834.15$48,810
Apr 20135453093.964.28$51,337
Mar 20135416293.623.91$50,891
Feb 20135535691.233.42$50,642
Jan 20133596291.603.42$33,096
Dec 20125466286.773.42$47,588
Nov 20123596086.953.62$31,433
Oct 20128846289.383.40$79,223
Sep 20123626094.672.92$34,446
Aug 20125406292.662.91$50,217
Jul 20125366285.133.02$45,817
Jun 20127116079.822.52$56,903
May 20123576291.612.49$32,859
Apr 201271160101.652.00$72,393
Mar 201290560105.052.22$95,204
Feb 201256358101.102.57$57,068
Jan 20129376298.092.73$92,080
Dec 20115866096.873.24$56,960
Nov 20117516095.723.31$72,084
Oct 20117046284.983.65$60,052
Sep 20117596083.623.99$63,707
Aug 20117166283.404.15$59,972
Jul 20117236294.144.52$68,343
Jun 20117036092.904.64$65,587
May 20117166298.134.40$70,534
Apr 201171158105.964.33$75,589
Mar 20118936296.364.06$86,301
Feb 20117455685.644.18$64,036
Jan 20118943286.504.59$77,478
Dec 20107276285.734.35$62,595
Nov 20107166080.843.80$58,109
Oct 20107133178.103.51$55,794
Sep 20106996072.633.98$51,007
Aug 20108786273.684.42$64,965
Jul 20107176272.554.74$52,312
Jun 20107176070.364.91$50,743
May 20107096271.124.24$50,687
Apr 20107046081.694.12$57,757
Mar 20105316278.394.39$41,897
Feb 20103605673.585.44$26,794
Jan 20107146274.365.96$53,463
Dec 20095476271.445.48$39,418
Nov 20097006074.593.75$52,438
Oct 20098136272.544.11$59,230
Sep 20097946065.543.06$52,223
Aug 20098826267.423.22$59,664
Jul 20091,0216261.133.46$62,629
Jun 20091,0296066.163.90$68,312
May 20096516254.743.93$35,879
Apr 20096786046.773.59$31,925
Mar 2009604042.144.06$2,691
Feb 20095525432.814.63$18,361
Jan 20095165635.865.37$18,805
Dec 20085386237.105.98$20,330
Nov 20084806055.496.86$27,047
Oct 20084806275.246.92$36,544
Sep 200850160101.767.88$51,454
Aug 200857362114.228.48$65,974
Jul 200860062131.0811.39$79,354
Jun 200868760131.3313.03$91,006
May 200851462123.1711.57$64,027
Apr 200846360110.3110.45$51,701
Mar 200850562101.909.66$52,059
Feb 20084945892.538.77$46,219
Jan 20083325490.388.21$30,449
Dec 20074956288.337.30$44,176
Nov 20075416091.677.29$50,031
Oct 20074716282.856.92$39,452
Sep 20072465475.846.24$18,994
Aug 20073506269.066.39$24,567
Jul 20074105470.906.39$29,414
Jun 20071634462.007.55$10,438
May 20073566258.747.85$21,398
Apr 20074036059.617.81$24,491
Mar 20077906256.927.30$45,420
Feb 20071315655.108.22$7,678
Jan 20076236250.306.73$31,754
Dec 20065266256.656.92$30,227
Nov 20065376054.207.62$29,562
Oct 20064946254.906.01$27,493
Sep 20064236060.085.04$25,716
Aug 20065176268.717.34$35,978
Jul 20066406069.376.34$44,777
Jun 20065126066.286.38$34,318
May 20064336266.016.42$28,981
Apr 20064886064.397.36$31,864
Mar 20065236256.707.08$30,093
Feb 20064792657.597.75$27,787
Jan 20064686260.598.93$28,910
Dec 20054436254.9413.42$25,170
Nov 20053525854.6910.59$19,865
Oct 20054956258.3413.80$29,734
Sep 20054626061.4512.08$29,115
Aug 20053606261.519.80$22,751
Jul 20054156255.697.84$23,598
Jun 20054046052.337.38$21,584
May 20055086245.226.65$23,384
Apr 2005547049.207.36$26,912
Mar 20056296250.377.15$32,126
Feb 20052785645.226.31$12,925
Jan 20053165043.166.32$13,955
Dec 20044846239.866.75$19,711
Nov 20044646045.286.33$21,390
Oct 20043636249.706.52$18,445
Sep 20045756043.245.28$25,180
Aug 20045356242.375.55$23,012
Jul 20046216238.286.08$24,149
Jun 20045593036.106.43$20,373
May 20044936237.486.49$18,880
Apr 20043466034.475.86$12,278
Mar 20046533134.365.53$22,609
Feb 20043055832.455.51$10,217
Jan 2004702032.036.30$22,485
Dec 20035356230.266.30$16,580
Nov 20033956028.804.60$11,652
Oct 20032346228.174.76$6,887
Sep 20033366026.314.75$9,125
Aug 20034966229.765.13$15,079
Jul 20033006229.415.17$9,144
Jun 20033426028.565.98$10,127
May 20034226226.595.97$11,591
Apr 20033666026.675.41$10,086
Mar 20034386231.146.10$14,017
Feb 20031,6115633.487.93$54,380
Jan 20034626230.315.58$14,349
Dec 20023966226.914.85$10,957
Nov 2002256024.664.14$6,313
Oct 2002358026.464.23$9,473
Sep 20023985827.443.64$11,132
Aug 200244515825.963.16$12,052
Jul 200259111424.583.06$14,876
Jun 20026016023.733.34$14,462
May 20027236224.663.58$18,051
Apr 20025256823.653.51$12,655
Mar 200273822822.003.10$16,943
Feb 200254816218.222.38$10,369
Jan 200289330917.172.38$16,067
Dec 20015056216.932.36$8,696
Nov 20015828518.072.41$10,721
Oct 20017226219.782.53$14,438
Sep 200184243524.262.25$21,406
Aug 20016336224.873.05$15,932
Jul 20017126223.933.20$17,236
Jun 200177751324.563.82$21,045
May 20018016225.524.31$20,709
Apr 20018876024.685.34$22,211
Mar 20019516224.545.38$23,671
Feb 20019585627.755.77$26,907
Jan 20019246227.478.40$25,903
Dec 20009705826.889.12$26,603
Nov 20001,0606032.215.66$34,482
Oct 20001,1565431.235.15$36,380
Sep 20009425831.875.19$30,322
Aug 20001,14226429.644.54$35,048
Jul 20001,1136028.534.09$31,999
Jun 20001,1373029.304.40$33,446
May 20001,3216227.263.68$36,239
Apr 20001,19015124.513.12$29,637
Mar 20001,2428928.422.86$35,552
Feb 20001,1635827.622.73$32,280
Jan 20001,23213825.272.48$31,475
Dec 19991,32526724.282.42$32,818
Nov 19991,11137723.192.43$26,682
Oct 19991,22621020.982.80$26,310
Sep 19991,2378321.752.62$27,122
Aug 19991,2148419.262.88$23,623
Jul 19991,4516417.892.37$26,110
Jun 19999666715.942.36$15,556
May 19991,3899715.792.32$22,157
Apr 19991,14013015.102.21$17,501
Mar 19991,2469912.471.84$15,720
Feb 19991,240589.981.82$12,481
Jan 19991,2456210.381.90$13,041
Dec 19981,2742069.201.77$12,086
Nov 19981,3378110.892.19$14,737
Oct 19981,3549312.421.97$17,000
Sep 19981,18532912.592.08$15,604
Aug 19981,37234611.301.91$16,164
Jul 19981,26335111.742.24$15,613
Jun 19981,2706011.242.24$14,409
May 19981,4486212.622.21$18,411
Apr 19981,2446013.042.51$16,372
Mar 19981,4216212.802.31$18,332
Feb 19981,3446113.952.30$18,889
Jan 19981,464014.702.15$21,521
Dec 19971,5606216.322.41$25,609
Nov 19971,3486218.193.09$24,712
Oct 19971,6456019.253.15$31,855
Sep 19971,5206417.742.95$27,154
Aug 19971,4596217.862.55$26,216
Jul 19971,3816217.582.25$24,417
Jun 19971,4746017.242.26$25,547
May 19971,3896218.972.31$26,492
Apr 19971,5509317.882.08$27,908
Mar 19971,39511118.951.94$26,650
Feb 19971,5714220.492.21$32,282
Jan 19971,32315723.483.54$31,620
Dec 19961,32112723.32$30,806
Nov 19961,43626421.97$31,549
Oct 19961,48428723.31$34,592
Sep 19961,35729922.22$30,153
Aug 19961,55534320.26$31,504
Jul 19961,61529419.55$31,573
Jun 19961,23641218.73$23,150
May 19961,47838019.43$28,718
Apr 19961,47950421.51$31,813
Mar 19961,65445519.38$32,055
Feb 19961,51028916.98$25,640
Jan 19961,66632217.07$28,439
Dec 19951,74435217.19$29,979
Nov 19951,50027816.00$24,000
Oct 19951,52024015.43$23,454
Sep 19951,43941916.18$23,283
Aug 19951,43528715.92$22,845
Jul 19951,26535515.24$19,279
Jun 19951,19539716.41$19,610
May 19951,12121817.56$19,685
Apr 19951,18519517.73$21,010
Mar 19951,33932116.44$22,013
Feb 199589431716.58$14,823
Jan 19951,15831415.92$18,435
Dec 19941,13829115.03$17,104
Nov 19941,14628915.90$18,221
Oct 19941,05734615.58$16,468
Sep 199495934315.29$14,663
Aug 19941,04429516.13$16,840
Jul 19941,09535617.56$19,228
Jun 19941,39537217.09$23,841
May 19941,37538715.88$21,835
Apr 19941,10628614.14$15,639
Mar 19941,49835512.46$18,665
Feb 199481653412.50$10,200
Jan 19941,48054312.66$18,737
Dec 19931,57757712.33$19,444
Nov 19931,49936514.49$21,721
Oct 19931,44151915.85$22,840
Sep 19931,42057715.03$21,343
Aug 19931,63046415.66$25,526
Jul 19931,62352915.46$25,092
Jun 19931,23748816.79$20,769
May 19931,17038017.68$20,686
Apr 19931,33145818.05$24,025
Mar 19931,41953518.14$25,741
Feb 199388943717.90$15,913
Jan 19931,49060016.93$25,226

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                  349 bbl  × $106.41 =    $37,137
Casinghead gas         0 Mcf  × $  3.05 =         $0

────────────────────────────────────────────────────
Month total                                  $37,137

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/60898 is the state's own key, not one this site invented.