FORTENBERRY "A"

Operated by THREE SPAN OIL & GAS, INC. (P-5 857911) in the WELCH field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 61531District 8AField 96062001Hydrogen sulphide fieldOilCasinghead gasSaveExport
Value, all time
$7.2 M
Jan 1993 – May 2026
Value, last 12 filed months
$187 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 67 leases and 1,426 wells, and the rule below applies to all of them.

Discovered
1941-12-31
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 field rule took effect on 2019-01-23.

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: REQUIRED

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
OilDisposition147,304 bbl$7,176,921
Casinghead gasProduction4,598 Mcf$14,445
Total$7,191,367

1,877 Mcf of this lease's gas, across 47 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 (2)

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 32.9593, -102.0767. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.3 miles.

32.95927, -102.07664 · 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 2 wells
With a plug date
0.0%
0 of 2 wells
Median depth
4,935 ft
2 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.
2100.0%

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 4,930 and 4,940 ft, median 4,935 ft, over the 2 wells that filed a depth.

Completions filed
Feb 1976 – Jan 2023
2 of 2 wells

2 wells

42-1153048914,930 ftJan 2023
42-1153051224,940 ftFeb 1976

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 20263250106.413.05$34,583
Apr 2026172098.932.87$17,016
Mar 2026326089.753.15$29,259
Feb 2026165063.503.75$10,478
Jan 2026346059.138.00$20,459
Dec 2025174056.664.41$9,859
Nov 2025177058.593.93$10,370
Oct 2025330059.383.30$19,595
Sep 2025179062.743.08$11,230
Aug 20250063.933.01$0
Jul 2025355066.743.32$23,693
Jun 20250066.483.13$0
May 2025182060.553.23$11,020
Apr 2025356062.363.54$22,200
Mar 2025180067.704.27$12,186
Feb 2025355070.884.34$25,162
Jan 20250074.324.28$0
Dec 2024528068.993.12$36,427
Nov 2024180069.052.20$12,429
Oct 2024174071.372.28$12,418
Sep 2024354069.612.36$24,642
Aug 2024358075.632.06$27,076
Jul 2024357079.932.15$28,535
Jun 2024178078.082.63$13,898
May 2024354078.812.20$27,899
Apr 2024351084.451.66$29,642
Mar 2024182080.301.55$14,615
Feb 2024182076.091.78$13,848
Jan 2024182073.023.30$13,290
Dec 2023182071.262.61$12,969
Nov 2023179077.892.81$13,942
Oct 2023179085.443.09$15,294
Sep 2023356089.042.74$31,698
Aug 2023169080.522.67$13,608
Jul 2023349074.852.64$26,123
Jun 2023177068.962.26$12,206
May 20230070.622.23$0
Apr 20230078.122.24$0
Mar 20230072.852.39$0
Feb 2023178075.112.47$13,370
Jan 2023333076.533.39$25,484
Dec 20220076.415.73$0
Nov 2022172085.005.65$14,620
Oct 20220087.185.86$0
Sep 2022435084.888.16$36,923
Aug 2022334094.529.13$31,570
Jul 20223240101.587.54$32,912
Jun 20221730115.097.98$19,911
May 20223650109.378.43$39,920
Apr 20223530104.226.84$36,790
Mar 20223390108.885.08$36,910
Feb 2022173091.054.86$15,752
Jan 2022350081.844.54$28,644
Dec 2021351071.323.90$25,033
Nov 2021345077.435.24$26,713
Oct 2021343079.795.71$27,368
Sep 2021348069.865.35$24,311
Aug 2021507066.024.22$33,472
Jul 2021346070.783.98$24,490
Jun 2021176069.493.38$12,230
May 20210063.483.02$0
Apr 2021346060.362.76$20,885
Mar 2021171061.302.72$10,482
Feb 2021337057.805.55$19,479
Jan 2021143050.412.81$7,209
Dec 2020183044.642.68$8,169
Nov 2020353038.772.71$13,686
Oct 2020352036.972.48$13,013
Sep 2020350037.091.99$12,982
Aug 2020161039.982.39$6,437
Jul 2020175038.371.83$6,715
Jun 2020175034.901.69$6,108
May 20200016.921.81$0
Apr 2020348014.751.80$5,133
Mar 20200030.341.86$0
Feb 2020349049.881.98$17,408
Jan 2020370057.252.09$21,183
Dec 2019358059.012.30$21,126
Nov 2019358055.302.75$19,797
Oct 2019343053.472.42$18,340
Sep 2019362055.052.66$19,928
Aug 2019354053.112.30$18,801
Jul 2019335056.272.46$18,850
Jun 2019370052.782.49$19,529
May 2019327058.482.74$19,123
Apr 2019353062.632.75$22,108
Mar 2019371056.803.06$21,073
Feb 2019186050.852.79$9,458
Jan 2019340046.033.23$15,650
Dec 2018539046.594.19$25,112
Nov 2018344052.934.24$18,208
Oct 2018356061.443.40$21,873
Sep 2018174059.543.11$10,360
Aug 2018168059.403.07$9,979
Jul 2018355065.142.93$23,125
Jun 2018496060.183.08$29,849
May 2018342065.382.90$22,360
Apr 2018330063.842.90$21,067
Mar 2018164061.222.79$10,040
Feb 2018330061.782.77$20,387
Jan 2018329062.874.01$20,684
Dec 2017334057.272.92$19,128
Nov 2017331055.423.12$18,344
Oct 2017507049.292.98$24,990
Sep 2017172047.523.09$8,173
Aug 2017334045.373.00$15,154
Jul 2017328043.873.09$14,389
Jun 2017336042.493.09$14,277
May 2017318045.373.26$14,428
Apr 2017340047.933.21$16,296
Mar 2017325046.772.98$15,200
Feb 2017319050.452.95$16,094
Jan 2017158049.413.42$7,807
Dec 2016170048.763.72$8,289
Nov 2016324042.492.64$13,767
Oct 2016347046.193.09$16,028
Sep 2016339041.553.10$14,085
Aug 2016163041.442.92$6,755
Jul 2016336041.622.92$13,984
Jun 2016340045.352.69$15,419
May 2016332042.521.99$14,117
Apr 2016349036.561.99$12,759
Mar 2016344033.011.79$11,355
Feb 2016167026.472.06$4,420
Jan 2016339027.352.36$9,272
Dec 2015339032.362.00$10,970
Nov 2015337038.792.17$13,072
Oct 2015336043.552.43$14,633
Sep 2015166042.992.76$7,136
Aug 2015337040.162.87$13,534
Jul 2015336048.152.95$16,178
Jun 2015342056.152.88$19,203
May 2015339055.212.96$18,716
Apr 2015335049.822.71$16,690
Mar 2015340042.892.93$14,583
Feb 2015344044.662.98$15,363
Jan 2015349043.433.10$15,157
Dec 2014169054.693.59$9,243
Nov 2014336070.464.25$23,675
Oct 2014341078.303.90$26,700
Sep 2014172086.164.05$14,820
Aug 2014340089.394.04$30,393
Jul 2014334096.564.18$32,251
Jun 2014173098.164.74$16,982
May 2014330094.734.73$31,261
Apr 2014338095.944.81$32,428
Mar 2014175095.895.06$16,781
Feb 2014360097.406.19$35,064
Jan 2014349090.404.86$31,550
Dec 2013341091.824.35$31,311
Nov 2013353088.853.74$31,364
Oct 2013179097.423.78$17,438
Sep 20133520104.113.72$36,647
Aug 20131770104.253.52$18,452
Jul 20133510102.523.72$35,985
Jun 2013527094.403.93$49,749
May 2013176094.834.15$16,690
Apr 2013512093.964.28$48,108
Mar 2013171093.623.91$16,009
Feb 2013347091.233.42$31,657
Jan 2013347091.603.42$31,785
Dec 2012334086.773.42$28,981
Nov 2012355086.953.62$30,867
Oct 2012355089.383.40$31,730
Sep 2012347094.672.92$32,850
Aug 2012337092.662.91$31,226
Jul 2012346085.133.02$29,455
Jun 2012512079.822.52$40,868
May 2012345091.612.49$31,605
Apr 20123450101.652.00$35,069
Mar 20123530105.052.22$37,083
Feb 20123260101.102.57$32,959
Jan 2012352098.092.73$34,528
Dec 2011168096.873.24$16,274
Nov 2011339095.723.31$32,449
Oct 2011335084.983.65$28,468
Sep 2011336083.623.99$28,096
Aug 2011348083.404.15$29,023
Jul 2011357094.144.52$33,608
Jun 2011346092.904.64$32,143
May 2011175098.134.40$17,173
Apr 20113540105.964.33$37,510
Mar 2011361096.364.06$34,786
Feb 2011529085.644.18$45,304
Jan 2011185086.504.59$16,003
Dec 2010419285.734.35$35,930
Nov 2010523280.843.80$42,287
Oct 2010516278.103.51$40,307
Sep 2010350272.633.98$25,428
Aug 2010504273.684.42$37,144
Jul 2010343272.554.74$24,894
Jun 2010503270.364.91$35,401
May 2010339271.124.24$24,118
Apr 2010331281.694.12$27,048
Mar 2010519278.394.39$40,693
Feb 2010531273.585.44$39,082
Jan 2010510274.365.96$37,936
Dec 2009332271.445.48$23,729
Nov 2009488274.593.75$36,407
Oct 2009352272.544.11$25,542
Sep 2009498265.543.06$32,645
Aug 2009497267.423.22$33,514
Jul 2009358261.133.46$21,891
Jun 2009509266.163.90$33,683
May 2009343254.743.93$18,784
Apr 2009508246.773.59$23,766
Mar 2009503242.144.06$21,205
Feb 2009337232.814.63$11,066
Jan 2009518235.865.37$18,586
Dec 2008340237.105.98$12,626
Nov 2008518255.496.86$28,758
Oct 2008521275.246.92$39,214
Sep 20083332101.767.88$33,902
Aug 20084902114.228.48$55,985
Jul 20085122131.0811.39$67,136
Jun 20083352131.3313.03$44,022
May 20084922123.1711.57$60,623
Apr 20085082110.3110.45$56,058
Mar 20083382101.909.66$34,462
Feb 2008505292.538.77$46,745
Jan 2008335290.388.21$30,294
Dec 2007509288.337.30$44,975
Nov 2007514291.677.29$47,133
Oct 2007332282.856.92$27,520
Sep 2007511275.846.24$38,767
Aug 2007345269.066.39$23,838
Jul 2007518270.906.39$36,739
Jun 2007490262.007.55$30,395
May 2007343258.747.85$20,164
Apr 2007352259.617.81$20,998
Mar 2007522256.927.30$29,727
Feb 2007338255.108.22$18,640
Jan 2007527250.306.73$26,522
Dec 2006336256.656.92$19,048
Nov 2006499254.207.62$27,061
Oct 2006335254.906.01$18,404
Sep 2006501260.085.04$30,110
Aug 2006339268.717.34$23,307
Jul 2006334269.376.34$23,182
Jun 20061793066.286.38$12,056
May 20065083066.016.42$33,726
Apr 20063463064.397.36$22,500
Mar 20063613056.707.08$20,681
Feb 20065453057.597.75$31,619
Jan 20063493060.598.93$21,414
Dec 20053573054.9413.42$20,016
Nov 20055323054.6910.59$29,413
Oct 20053353058.3413.80$19,958
Sep 20054973061.4512.08$30,903
Aug 20053593061.519.80$22,376
Jul 20053553055.697.84$20,005
Jun 20055293052.337.38$27,904
May 20053473045.226.65$15,891
Apr 20053633049.207.36$18,080
Mar 20055373150.377.15$27,270
Feb 20053572845.226.31$16,320
Jan 20055443143.166.32$23,675
Dec 20043542839.866.75$14,299
Nov 20043412745.286.33$15,611
Oct 20045353149.706.52$26,791
Sep 20043502843.245.28$15,282
Aug 20045373142.375.55$22,925
Jul 20041763138.286.08$6,926
Jun 20045323036.106.43$19,398
May 20043503137.486.49$13,319
Apr 20043493034.475.86$12,206
Mar 20045183134.365.53$17,970
Feb 20043392932.455.51$11,160
Jan 20043603132.036.30$11,726
Dec 20034973130.266.30$15,235
Nov 20033523028.804.60$10,275
Oct 20035343028.174.76$15,186
Sep 20033513026.314.75$9,377
Aug 20033543129.765.13$10,694
Jul 20033582629.415.17$10,663
Jun 20035313028.565.98$15,345
May 20033613126.595.97$9,784
Apr 20033603026.675.41$9,763
Mar 20035402831.146.10$16,986
Feb 20033642833.487.93$12,409
Jan 20035463130.315.58$16,722
Dec 20025443126.914.85$14,790
Nov 20023633024.664.14$9,076
Oct 20025333026.464.23$14,230
Sep 20023603027.443.64$9,987
Aug 20025263125.963.16$13,753
Jul 20023593124.583.06$8,919
Jun 20025323123.733.34$12,728
May 20023513124.663.58$8,767
Apr 20025193023.653.51$12,380
Mar 20025243122.003.10$11,624
Feb 20023492818.222.38$6,425
Jan 20023523117.172.38$6,117
Dec 20015363116.932.36$9,148
Nov 20015083018.072.41$9,252
Oct 20013553119.782.53$7,100
Sep 20013623024.262.25$8,850
Aug 20015313124.873.05$13,301
Jul 20015163123.933.20$12,447
Jun 20013463024.563.82$8,612
May 20015263125.524.31$13,557
Apr 20013503024.685.34$8,798
Mar 20015353124.545.38$13,296
Feb 20013512827.755.77$9,902
Jan 20013593127.478.40$10,122
Dec 20003593126.889.12$9,933
Nov 20005303032.215.66$17,241
Oct 20003603131.235.15$11,402
Sep 20003573031.875.19$11,533
Aug 20005353129.644.54$15,998
Jul 20005193128.534.09$14,934
Jun 20003503029.304.40$10,387
May 20003593127.263.68$9,900
Apr 20005193024.513.12$12,814
Mar 20005373128.422.86$15,350
Feb 20003542927.622.73$9,857
Jan 20003592625.272.48$9,136
Dec 19995092624.282.42$12,422
Nov 19993523023.192.43$8,236
Oct 19995373120.982.80$11,353
Sep 19993563021.752.62$7,822
Aug 19993453119.262.88$6,734
Jul 19995313117.892.37$9,573
Jun 19995373015.942.36$8,631
May 19993603115.792.32$5,756
Apr 1999538115.102.21$8,126
Mar 1999362112.471.84$4,516
Feb 199953619.981.82$5,351
Jan 1999541110.381.90$5,617
Dec 199836419.201.77$3,351
Nov 1998351110.892.19$3,825
Oct 1998531112.421.97$6,597
Sep 1998500112.592.08$6,297
Aug 1998483111.301.91$5,460
Jul 1998336111.742.24$3,947
Jun 1998502111.242.24$5,645
May 1998500112.622.21$6,312
Apr 1998504113.042.51$6,575
Mar 1998350112.802.31$4,482
Feb 1998533113.952.30$7,438
Jan 1998341114.702.15$5,015
Dec 1997714116.322.41$11,655
Nov 1997181118.193.09$3,295
Oct 1997539119.253.15$10,379
Sep 1997355117.742.95$6,301
Aug 1997538117.862.55$9,611
Jul 1997516117.582.25$9,074
Jun 1997344117.242.26$5,933
May 1997530118.972.31$10,056
Apr 1997354117.882.08$6,332
Mar 1997534118.951.94$10,121
Feb 1997522120.492.21$10,698
Jan 1997179123.483.54$4,206
Dec 1996544123.32$12,686
Nov 1996362121.97$7,953
Oct 1996534123.31$12,448
Sep 1996356122.22$7,910
Aug 1996350120.26$7,091
Jul 1996531119.55$10,381
Jun 1996347118.73$6,499
May 1996531119.43$10,317
Apr 1996529121.51$11,379
Mar 1996529119.38$10,252
Feb 1996178116.98$3,022
Jan 1996356117.07$6,077
Dec 1995530117.19$9,111
Nov 1995533116.00$8,528
Oct 1995521115.43$8,039
Sep 1995358016.18$5,792
Aug 19955386215.92$8,565
Jul 19955346215.24$8,138
Jun 19955366016.41$8,796
May 19953606217.56$6,322
Apr 19953626017.73$6,418
Mar 19955466216.44$8,976
Feb 19953605616.58$5,969
Jan 19955466215.92$8,692
Dec 19945236215.03$7,861
Nov 19945446015.90$8,650
Oct 19943626215.58$5,640
Sep 19945346015.29$8,165
Aug 19945336216.13$8,597
Jul 19943536217.56$6,199
Jun 19945336217.09$9,109
May 19945346015.88$8,480
Apr 19943496014.14$4,935
Mar 19944926212.46$6,130
Feb 19943645612.50$4,550
Jan 19945406212.66$6,836
Dec 19935436212.33$6,695
Nov 19933616014.49$5,231
Oct 19933566215.85$5,643
Sep 19935356015.03$8,041
Aug 19935346215.66$8,362
Jul 19933556215.46$5,488
Jun 1993531216.79$8,915
May 1993358217.68$6,329
Apr 1993358218.05$6,462
Mar 19935179418.14$9,378
Feb 19933668417.90$6,551
Jan 19933599416.93$6,078

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                  325 bbl  × $106.41 =    $34,583
Casinghead gas         0 Mcf  × $  3.05 =         $0

────────────────────────────────────────────────────
Month total                                  $34,583

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/61531 is the state's own key, not one this site invented.