CAHILL, T. G., -B-

Operated by FORMENTERA OPERATIONS LLC (P-5 276959) in the WHEELER (WOLFCAMP) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 13476District 08Field 96756800Hydrogen sulphide fieldNGPA filingOilCasinghead gasSaveExport
Value, all time
$10.6 M
Jan 1993 – May 2026
Value, last 12 filed months
$286 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 22 leases and 52 wells, and the rule below applies to all of them.

Discovered
1959-01-24
as the register files it
Field class
Oil
the register's own label
Between wells
1,200 ft
minimum
From a lease line
510 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.

Severance-tax incentive filings

Applications the operator filed to have this lease's gas taxed at a reduced state rate. A filing is an application, and this page never calls one a reduction that was granted.

ProgrammeFilingsWith an approval dateDatedDocket
NGPA1none

This says nothing about a royalty. A severance tax is charged to the operator. Whether a reduced rate reaches a royalty owner depends on the wording of the lease instrument, which is a private contract this site does not hold.

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
OilDisposition198,248 bbl$9,213,366
Casinghead gasProduction389,890 Mcf$1,337,693
Total$10,551,060

73,540 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 (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 31.8446, -102.7894. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.2 miles.

31.84462, -102.78943 · 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
9,972 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 9,360 and 10,583 ft, median 9,972 ft, over the 2 wells that filed a depth.

Completions filed
Jul 1982 – Dec 1987
2 of 2 wells

2 wells

42-13535540210,583 ftDec 1987
42-1350806519,360 ftJul 1982

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 202612356106.413.05$13,259
Apr 202635681298.932.87$37,549
Mar 202643086389.753.15$41,310
Feb 202620974463.503.75$16,062
Jan 202667269559.138.00$45,294
Dec 202529380856.664.41$20,167
Nov 202528180358.593.93$19,617
Oct 202529478859.383.30$20,062
Sep 202538483762.743.08$26,668
Aug 202529483663.933.01$21,316
Jul 20256453666.743.32$6,048
Jun 20252261,01266.483.13$18,191
May 202531213260.553.23$19,318
Apr 20254411362.363.54$27,547
Mar 2025439067.704.27$29,720
Feb 2025163070.884.34$11,553
Jan 2025327074.324.28$24,303
Dec 2024198068.993.12$13,660
Nov 202429453669.052.20$21,479
Oct 202427580471.372.28$21,461
Sep 202434377169.612.36$25,699
Aug 202428593875.632.06$23,490
Jul 202442793779.932.15$36,141
Jun 202432889078.082.63$27,954
May 202427785778.812.20$23,714
Apr 202436982584.451.66$32,531
Mar 202430587480.301.55$25,842
Feb 202435965476.091.78$28,483
Jan 202445181773.023.30$35,626
Dec 202345194571.262.61$34,605
Nov 202334593677.892.81$29,500
Oct 20233391,14985.443.09$32,511
Sep 202330098889.042.74$29,414
Aug 20232741,19380.522.67$25,251
Jul 20234411,21674.852.64$36,221
Jun 20232971,12368.962.26$23,017
May 202340573170.622.23$30,229
Apr 202329070078.122.24$24,221
Mar 202351969172.852.39$39,463
Feb 202345275175.112.47$35,801
Jan 20233581,02276.533.39$30,860
Dec 202238583876.415.73$34,219
Nov 20223761,16085.005.65$38,510
Oct 20223701,05687.185.86$38,449
Sep 20224181,18284.888.16$45,129
Aug 20225001,19194.529.13$58,130
Jul 20223191,342101.587.54$42,525
Jun 2022382825115.097.98$50,546
May 2022343946109.378.43$45,492
Apr 2022432545104.226.84$48,750
Mar 2022357894108.885.08$43,408
Feb 202236884791.054.86$37,622
Jan 202252278381.844.54$46,273
Dec 202159977371.323.90$45,735
Nov 202153578577.435.24$45,536
Oct 202124570479.795.71$23,571
Sep 202148961969.865.35$37,474
Aug 202151584966.024.22$37,584
Jul 202136141170.783.98$27,188
Jun 20217014569.493.38$5,354
May 202115514563.483.02$10,277
Apr 20216652960.362.76$5,443
Mar 20218533761.302.72$6,126
Feb 20217129857.805.55$5,757
Jan 202111558250.412.81$7,433
Dec 20209057344.642.68$5,551
Nov 202012964038.772.71$6,734
Oct 202019673336.972.48$9,063
Sep 202011244937.091.99$5,048
Aug 202023518239.982.39$9,829
Jul 202026039038.371.83$10,688
Jun 202028468934.901.69$11,076
May 202032545916.921.81$6,332
Apr 202043169514.751.80$7,611
Mar 202036733730.341.86$11,760
Feb 202042633749.881.98$21,916
Jan 202055337257.252.09$32,438
Dec 201944440459.012.30$27,131
Nov 201947668855.302.75$28,215
Oct 201941783053.472.42$24,304
Sep 201947158655.052.66$27,486
Aug 201942687553.112.30$24,641
Jul 201941473356.272.46$25,099
Jun 201942689752.782.49$24,719
May 201939443758.482.74$24,239
Apr 201928254862.632.75$19,169
Mar 201938965156.803.06$24,089
Feb 201943372650.852.79$24,045
Jan 201929873146.033.23$16,077
Dec 201843269646.594.19$23,040
Nov 201841641552.934.24$23,777
Oct 201836277161.443.40$24,861
Sep 201834999259.543.11$23,863
Aug 201839888659.403.07$26,358
Jul 201838932665.142.93$26,295
Jun 201837270160.183.08$24,544
May 201830266465.382.90$21,671
Apr 201844069563.842.90$30,106
Mar 201846878261.222.79$30,830
Feb 201838149161.782.77$24,896
Jan 201854113362.874.01$34,546
Dec 201752286957.272.92$32,434
Nov 201730760555.423.12$18,901
Oct 201757267949.292.98$30,220
Sep 201740798547.523.09$22,382
Aug 20173301,03845.373.00$18,091
Jul 20174261,04043.873.09$21,899
Jun 201749293942.493.09$23,804
May 20175261,07545.373.26$27,373
Apr 20174761,07147.933.21$26,254
Mar 20175281,01646.772.98$27,726
Feb 20172531,09350.452.95$15,991
Jan 201763093049.413.42$34,308
Dec 20165661,10948.763.72$31,727
Nov 20165161,17542.492.64$25,032
Oct 20163621,11446.193.09$20,163
Sep 201625796041.553.10$13,655
Aug 20163601,08741.442.92$18,097
Jul 20165871,09841.622.92$27,642
Jun 20165521,03945.352.69$27,824
May 20163821,02142.521.99$18,275
Apr 201646190036.561.99$18,646
Mar 201639783733.011.79$14,607
Feb 201627968226.472.06$8,793
Jan 201631160827.352.36$9,943
Dec 201535812132.362.00$11,827
Nov 201524395638.792.17$11,498
Oct 201539953443.552.43$18,672
Sep 201522569242.992.76$11,582
Aug 201530874540.162.87$14,509
Jul 201521285248.152.95$12,717
Jun 201536357256.152.88$22,031
May 201517320355.212.96$10,151
Apr 201515421749.822.71$8,260
Mar 201546674342.892.93$22,167
Feb 201527180644.662.98$14,502
Jan 201522988843.433.10$12,699
Dec 201451993054.693.59$31,724
Nov 201441290670.464.25$32,882
Oct 201439088178.303.90$33,974
Sep 201442655186.164.05$38,933
Aug 20145031,02789.394.04$49,107
Jul 201430894896.564.18$33,703
Jun 201439589698.164.74$43,017
May 201435889494.734.73$38,139
Apr 201446185095.944.81$48,316
Mar 201439688095.895.06$42,422
Feb 201431979197.406.19$35,968
Jan 201437687790.404.86$38,253
Dec 201322366591.824.35$23,372
Nov 201322572488.853.74$22,698
Oct 201334376297.423.78$36,295
Sep 2013368806104.113.72$41,309
Aug 2013491861104.253.52$54,220
Jul 2013419858102.523.72$46,146
Jun 201348184794.403.93$48,738
May 201339286694.834.15$40,766
Apr 201347783093.964.28$48,373
Mar 201342979193.623.91$43,258
Feb 201342926291.233.42$40,034
Jan 201350050991.603.42$47,541
Dec 201241171386.773.42$38,101
Nov 201245467586.953.62$41,922
Oct 201245250689.383.40$42,120
Sep 201235983394.672.92$36,418
Aug 201262683192.662.91$60,422
Jul 201253678185.133.02$47,989
Jun 201231475179.822.52$26,955
May 201255076991.612.49$52,299
Apr 2012466716101.652.00$48,799
Mar 2012474719105.052.22$51,391
Feb 2012477709101.102.57$50,047
Jan 201244676398.092.73$45,834
Dec 201144073296.873.24$44,994
Nov 201148278195.723.31$48,723
Oct 201142782184.983.65$39,282
Sep 201140077983.623.99$36,553
Aug 201152683883.404.15$47,346
Jul 201134678694.144.52$36,123
Jun 201139284992.904.64$40,356
May 201139686598.134.40$42,670
Apr 2011426813105.964.33$48,662
Mar 201152376596.364.06$53,500
Feb 201128581685.644.18$27,818
Jan 201158778986.504.59$54,396
Dec 201056579285.734.35$51,881
Nov 201039576880.843.80$34,847
Oct 201045782478.103.51$38,583
Sep 201047483572.633.98$37,749
Aug 201049486873.684.42$40,234
Jul 201045486172.554.74$37,016
Jun 201041883870.364.91$33,525
May 201045285171.124.24$35,750
Apr 201035982281.694.12$32,716
Mar 201048183678.394.39$41,375
Feb 201039370473.585.44$32,748
Jan 201046177774.365.96$38,914
Dec 200943379771.445.48$35,304
Nov 200932781774.593.75$27,456
Oct 200940786172.544.11$33,063
Sep 200938177065.543.06$27,331
Aug 200943882167.423.22$32,172
Jul 200940987261.133.46$28,023
Jun 200942087766.163.90$31,203
May 200944085954.743.93$27,458
Apr 200942385746.773.59$22,858
Mar 200938462742.144.06$18,727
Feb 200941652832.814.63$16,095
Jan 200951456335.865.37$21,456
Dec 200833284037.105.98$17,338
Nov 200853078655.496.86$34,802
Oct 200838285775.246.92$34,674
Sep 2008544682101.767.88$60,730
Aug 2008414926114.228.48$55,142
Jul 2008453915131.0811.39$69,801
Jun 2008504841131.3313.03$77,151
May 2008506911123.1711.57$72,868
Apr 2008409883110.3110.45$54,348
Mar 2008465870101.909.66$55,791
Feb 200845480192.538.77$49,034
Jan 200855385890.388.21$57,021
Dec 2007501088.337.30$44,253
Nov 200741584391.677.29$44,190
Oct 200755390782.856.92$52,094
Sep 200756288475.846.24$48,142
Aug 200745393769.066.39$37,270
Jul 200746993770.906.39$39,238
Jun 200750792362.007.55$38,401
May 200748492658.747.85$35,696
Apr 200747878059.617.81$34,582
Mar 200755890956.927.30$38,399
Feb 200746383955.108.22$32,405
Jan 200756888550.306.73$34,524
Dec 200652490156.656.92$35,918
Nov 200656256654.207.62$34,772
Oct 200659096454.906.01$38,188
Sep 200650795360.085.04$35,261
Aug 20065341,00668.717.34$44,075
Jul 20065361,00369.376.34$43,544
Jun 200654562566.286.38$40,113
May 200656049066.016.42$40,114
Apr 200650396364.397.36$39,476
Mar 200650894956.707.08$35,525
Feb 200649885357.597.75$35,292
Jan 200653289660.598.93$40,238
Dec 200553793954.9413.42$42,100
Nov 200556379154.6910.59$39,166
Oct 200550059258.3413.80$37,337
Sep 200543999161.4512.08$38,947
Aug 20055441,04961.519.80$43,738
Jul 200550497955.697.84$35,747
Jun 20055201,02252.337.38$34,755
May 20055391,04145.226.65$31,297
Apr 200558398549.207.36$35,934
Mar 200554092750.377.15$33,832
Feb 200546089345.226.31$26,438
Jan 200549292243.166.32$27,064
Dec 200450987739.866.75$26,209
Nov 200448986245.286.33$27,599
Oct 200449284549.706.52$29,958
Sep 200450684443.245.28$26,339
Aug 200451797442.375.55$27,312
Jul 20045331,01638.286.08$26,585
Jun 20045001,13836.106.43$25,371
May 20045561,06237.486.49$27,736
Apr 20045231,02034.475.86$24,003
Mar 20045551,06734.365.53$24,970
Feb 200451097932.455.51$21,943
Jan 20045641,02832.036.30$24,541
Dec 20036191,05330.266.30$25,367
Nov 20035521,03628.804.60$20,658
Oct 20035681,09228.174.76$21,198
Sep 20035521,07626.314.75$19,633
Aug 20036051,12229.765.13$23,760
Jul 200358497429.415.17$22,212
Jun 20035531,11228.565.98$22,447
May 20035701,14326.595.97$21,983
Apr 20035671,09526.675.41$21,043
Mar 20036041,13731.146.10$25,740
Feb 20035421,01833.487.93$26,215
Jan 20036331,12730.315.58$25,477
Dec 20026231,12126.914.85$22,206
Nov 20025951,04924.664.14$19,012
Oct 20026391,18426.464.23$21,915
Sep 20025781,17627.443.64$20,135
Aug 20025831,00725.963.16$18,321
Jul 20025961,24724.583.06$18,468
Jun 20025601,24123.733.34$17,432
May 20026141,26924.663.58$19,689
Apr 20025721,21423.653.51$17,792
Mar 20026311,25622.003.10$17,779
Feb 20025501,14118.222.38$12,732
Jan 20025991,27917.172.38$13,323
Dec 20016251,28216.932.36$13,612
Nov 20016191,23518.072.41$14,156
Oct 20015881,34919.782.53$15,042
Sep 20016011,33224.262.25$17,579
Aug 20016451,37624.873.05$20,242
Jul 20015961,47423.933.20$18,975
Jun 20016211,51224.563.82$21,034
May 20016221,58325.524.31$22,692
Apr 20016301,34224.685.34$22,708
Mar 20016441,47924.545.38$23,756
Feb 20015821,23927.755.77$23,296
Jan 20014991,23427.478.40$24,072
Dec 20006211,29926.889.12$28,543
Nov 20006321,42232.215.66$28,402
Oct 20006621,51931.235.15$28,490
Sep 20005991,53331.875.19$27,041
Aug 20006641,60229.644.54$26,955
Jul 20006001,62928.534.09$23,780
Jun 20006271,65129.304.40$25,631
May 20005751,27327.263.68$20,359
Apr 20006231,47824.513.12$19,875
Mar 20006241,46428.422.86$21,921
Feb 20005271,25027.622.73$17,964
Jan 20006371,42125.272.48$19,622
Dec 19996321,29224.282.42$18,476
Nov 19995791,47623.192.43$17,020
Oct 19995611,31320.982.80$15,451
Sep 19996011,33821.752.62$16,576
Aug 19996591,43719.262.88$16,825
Jul 19996721,43017.892.37$15,415
Jun 19996141,31115.942.36$12,884
May 19996071,29515.792.32$12,590
Apr 19996121,15715.102.21$11,796
Mar 19996561,21812.471.84$10,419
Feb 19996071,0999.981.82$8,056
Jan 19996281,05610.381.90$8,525
Dec 19986471,2119.201.77$8,100
Nov 19986381,21310.892.19$9,599
Oct 19986711,28712.421.97$10,868
Sep 19985831,34512.592.08$10,141
Aug 19985691,40711.301.91$9,113
Jul 19986321,39111.742.24$10,532
Jun 19986271,34711.242.24$10,061
May 19986511,38412.622.21$11,269
Apr 19986341,30213.042.51$11,529
Mar 19986731,31912.802.31$11,661
Feb 19985731,18313.952.30$10,713
Jan 19986611,26914.702.15$12,451
Dec 19976121,29816.322.41$13,117
Nov 19976511,25918.193.09$15,730
Oct 19976351,25619.253.15$16,180
Sep 19976191,28517.742.95$14,778
Aug 199763996517.862.55$13,878
Jul 19976741,45117.582.25$15,109
Jun 19976391,31217.242.26$13,978
May 19977391,42218.972.31$17,302
Apr 19976581,34517.882.08$14,566
Mar 19977481,38118.951.94$16,853
Feb 19975801,23420.492.21$14,606
Jan 19976691,44423.483.54$20,819
Dec 19967411,25423.32$17,280
Nov 19967851,43221.97$17,246
Oct 19967231,49923.31$16,853
Sep 19966451,52722.22$14,332
Aug 19966921,52420.26$14,020
Jul 19966401,48819.55$12,512
Jun 19966571,29818.73$12,306
May 19967412,64319.43$14,398
Apr 19966872,22821.51$14,777
Mar 19968201,58419.38$15,892
Feb 19966961,19616.98$11,818
Jan 19967461,27117.07$12,734
Dec 19957801,44817.19$13,408
Nov 19957581,28816.00$12,128
Oct 19956891,33515.43$10,631
Sep 19957161,38616.18$11,585
Aug 19956221,52215.92$9,902
Jul 19957421,56615.24$11,308
Jun 19957511,19516.41$12,324
May 19958391,55817.56$14,733
Apr 19957541,46717.73$13,368
Mar 19956101,43016.44$10,028
Feb 19956101,37816.58$10,114
Jan 19956671,53215.92$10,619
Dec 19947591,59215.03$11,408
Nov 19947071,29615.90$11,241
Oct 19947391,46115.58$11,514
Sep 19947161,51615.29$10,948
Aug 19948031,93616.13$12,952
Jul 19947991,69817.56$14,030
Jun 19947001,61117.09$11,963
May 19948081,05315.88$12,831
Apr 19947841,43014.14$11,086
Mar 19948111,55312.46$10,105
Feb 19947291,36912.50$9,113
Jan 19947331,54112.66$9,280
Dec 19939701,61412.33$11,960
Nov 19937731,36414.49$11,201
Oct 19939781,79715.85$15,501
Sep 19939501,86115.03$14,279
Aug 19939171,84115.66$14,360
Jul 19938711,84115.46$13,466
Jun 19931,0051,87616.79$16,874
May 19937241,47117.68$12,800
Apr 19938401,65418.05$15,162
Mar 19937061,35718.14$12,807
Feb 19937151,49817.90$12,799
Jan 19939411,26116.93$15,931

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                  123 bbl  × $106.41 =    $13,088
Casinghead gas        56 Mcf  × $  3.05 =       $171

────────────────────────────────────────────────────
Month total                                  $13,259

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. 08/O/13476 is the state's own key, not one this site invented.