TWILLEY UNIT

Operated by OCCIDENTAL PERMIAN LTD. (P-5 617544) in the ANTON-IRISH (WOLFCAMP) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 68503District 8AField 03194475Hydrogen sulphide fieldOilCasinghead gasSaveExport
Value, all time
$15.7 M
Oct 2002 – May 2026
Value, last 12 filed months
$249 k
at the published price for each month
Months reported
284
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 30 leases and 42 wells, and the rule below applies to all of them.

Discovered
2001-05-24
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 80 acres. The field rule took effect on 2003-06-24.

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
OilDisposition317,638 bbl$15,184,892
Casinghead gasProduction124,288 Mcf$508,397
Total$15,693,289

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 33.8376, -102.1330. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.0 miles.

33.83758, -102.13305 · 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
6,768 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 6,768 ft.

Completions filed
Dec 2008
1 of 1 wells

1 well

42-2793036616,768 ftDec 2008

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 (284)

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

284 months

May 2026237850106.413.05$27,808
Apr 202614275498.932.87$16,212
Mar 202615860689.753.15$16,089
Feb 202618771963.503.75$14,571
Jan 202632786959.138.00$26,286
Dec 20253081,01256.664.41$21,918
Nov 202534192558.593.93$23,611
Oct 202527788459.383.30$19,370
Sep 202512382862.743.08$10,265
Aug 202532766863.933.01$22,919
Jul 202530984066.743.32$23,407
Jun 202535885766.483.13$26,481
May 202528987960.553.23$20,340
Apr 202528473662.363.54$20,318
Mar 202524855767.704.27$19,167
Feb 202519140470.884.34$15,292
Jan 202522153074.324.28$18,692
Dec 202420653168.993.12$15,869
Nov 202419458269.052.20$14,675
Oct 202421969571.372.28$17,216
Sep 202424068869.612.36$18,333
Aug 202434777175.632.06$27,835
Jul 202425493979.932.15$22,318
Jun 202424264278.082.63$20,586
May 202425551278.812.20$21,222
Apr 202479384.451.66$6,677
Mar 202420044580.301.55$16,748
Feb 202410961076.091.78$9,382
Jan 202449059373.023.30$37,735
Dec 202346160271.262.61$34,423
Nov 202330367077.892.81$25,482
Oct 202321774685.443.09$20,844
Sep 2023801,05589.042.74$10,009
Aug 2023641,34780.522.67$8,754
Jul 2023521,37174.852.64$7,514
Jun 20231531,41568.962.26$13,747
May 20232281,41770.622.23$19,258
Apr 202333682378.122.24$28,090
Mar 20232781,13772.852.39$22,973
Feb 20231421,04475.112.47$13,240
Jan 20234361,07976.533.39$37,022
Dec 202213897876.415.73$16,148
Nov 20226281,15385.005.65$59,890
Oct 20227891,34687.185.86$76,678
Sep 20226261,05584.888.16$61,748
Aug 20223641,04094.529.13$43,898
Jul 202201,055101.587.54$7,957
Jun 202201,089115.097.98$8,687
May 202236733109.378.43$10,119
Apr 2022153977104.226.84$22,626
Mar 202250108.885.08$544
Feb 2022581991.054.86$4,435
Jan 2022201,08081.844.54$6,537
Dec 20216745171.323.90$6,537
Nov 20217139077.435.24$7,540
Oct 20218847379.795.71$9,724
Sep 202118336069.865.35$14,711
Aug 202150029566.024.22$34,255
Jul 202145126770.783.98$32,985
Jun 202147425169.493.38$33,787
May 202133424463.483.02$21,939
Apr 2021026660.362.76$734
Mar 20217330461.302.72$5,301
Feb 202139430557.805.55$24,465
Jan 202151240250.412.81$26,940
Dec 202042837044.642.68$20,096
Nov 202029727438.772.71$12,256
Oct 202015237136.972.48$6,539
Sep 20208220837.091.99$3,456
Aug 202040328339.982.39$16,787
Jul 202041130238.371.83$16,321
Jun 202040628634.901.69$14,653
May 202042228116.921.81$7,650
Apr 202043526214.751.80$6,889
Mar 202044826930.341.86$14,092
Feb 202040932949.881.98$21,053
Jan 202044028957.252.09$25,795
Dec 201943330559.012.30$26,254
Nov 20194854455.302.75$26,942
Oct 201947216253.472.42$25,630
Sep 201943620255.052.66$24,539
Aug 20193369453.112.30$18,062
Jul 20195297956.272.46$29,961
Jun 201977010852.782.49$40,910
May 20197418858.482.74$43,575
Apr 20196416562.632.75$40,325
Mar 201965814256.803.06$37,809
Feb 201968324450.852.79$35,412
Jan 201971641846.033.23$34,307
Dec 201879155546.594.19$39,176
Nov 201866428452.934.24$36,349
Oct 20185231,01961.443.40$35,596
Sep 201837791559.543.11$25,290
Aug 20185433159.403.07$4,223
Jul 201841841665.142.93$28,448
Jun 201830627060.183.08$19,246
May 201823020065.382.90$15,618
Apr 201838033363.842.90$25,225
Mar 201838115261.222.79$23,748
Feb 201828716461.782.77$18,185
Jan 201843646662.874.01$29,280
Dec 2017478057.272.92$27,375
Nov 201758717555.423.12$33,077
Oct 20171,08326449.292.98$54,169
Sep 201744616647.523.09$21,706
Aug 201751321745.373.00$23,927
Jul 20171047443.873.09$4,791
Jun 201744019142.493.09$19,285
May 201740613445.373.26$18,858
Apr 201736310047.933.21$17,720
Mar 201738110146.772.98$18,121
Feb 201735913350.452.95$18,504
Jan 201736818549.413.42$18,815
Dec 201641813748.763.72$20,892
Nov 20164453242.492.64$18,993
Oct 20164913146.193.09$22,775
Sep 20164471841.553.10$18,629
Aug 201648610141.442.92$20,435
Jul 201648214341.622.92$20,479
Jun 201645515245.352.69$21,043
May 201646211142.521.99$19,865
Apr 20164659636.561.99$17,192
Mar 201634229133.011.79$11,811
Feb 201652241826.472.06$14,680
Jan 201649283927.352.36$15,440
Dec 201547679132.362.00$16,986
Nov 201555796138.792.17$23,689
Oct 20155801,07543.552.43$27,868
Sep 201557298742.992.76$27,313
Aug 201558699540.162.87$26,392
Jul 201558498048.152.95$31,006
Jun 201554696256.152.88$33,431
May 201553644355.212.96$30,902
Apr 201557290649.822.71$30,949
Mar 20156461,00842.892.93$30,665
Feb 201553990244.662.98$26,756
Jan 20156321,01743.433.10$30,601
Dec 201462998054.693.59$37,920
Nov 201461286270.464.25$46,787
Oct 201463596778.303.90$53,493
Sep 201461288586.164.05$56,310
Aug 20146591,03289.394.04$63,072
Jul 201461195096.564.18$62,969
Jun 201463562898.164.74$65,306
May 201464452294.734.73$63,473
Apr 201467958795.944.81$67,966
Mar 201470268195.895.06$70,758
Feb 201464761897.406.19$66,844
Jan 201468079190.404.86$65,317
Dec 201371377591.824.35$68,842
Nov 201370124688.853.74$63,203
Oct 201368538997.423.78$68,203
Sep 20137602,188104.113.72$87,258
Aug 20138221,084104.253.52$89,512
Jul 2013825293102.523.72$85,668
Jun 201381725594.403.93$78,128
May 201387931294.834.15$84,650
Apr 201385554293.964.28$82,657
Mar 201388162693.623.91$84,929
Feb 201380063591.233.42$75,156
Jan 201395894391.603.42$90,978
Dec 201270370386.773.42$63,404
Nov 201219633786.953.62$18,264
Oct 201227136789.383.40$25,470
Sep 201223228394.672.92$22,789
Aug 201226626892.662.91$25,427
Jul 201227221085.133.02$23,790
Jun 201224922979.822.52$20,452
May 201232236791.612.49$30,412
Apr 201231835101.652.00$32,395
Mar 2012367438105.052.22$39,527
Feb 201241095101.102.57$41,695
Jan 201234550398.092.73$35,216
Dec 201138533996.873.24$38,393
Nov 201140665695.723.31$41,035
Oct 201145278784.983.65$41,282
Sep 201144874083.623.99$40,411
Aug 20115171,02083.404.15$47,350
Jul 201155692994.144.52$56,538
Jun 201154291092.904.64$54,574
May 201157332398.134.40$57,651
Apr 2011573541105.964.33$63,059
Mar 201154526796.364.06$53,600
Feb 201140213185.644.18$34,975
Jan 201164225386.504.59$56,694
Dec 201066828385.734.35$58,498
Nov 201075859180.843.80$63,520
Oct 201068134678.103.51$54,400
Sep 201070928572.633.98$52,629
Aug 201077027073.684.42$57,927
Jul 201080726172.554.74$59,784
Jun 201090835570.364.91$65,630
May 201098942171.124.24$72,121
Apr 201087834381.694.12$73,138
Mar 20101,09941578.394.39$87,972
Feb 20101,41621573.585.44$105,359
Jan 20101,95529774.365.96$147,145
Dec 20091,51327171.445.48$109,575
Nov 20091,48924774.593.75$111,991
Oct 20091,70837972.544.11$125,456
Sep 20091,87127865.543.06$123,477
Aug 20091,80519067.423.22$122,305
Jul 20092,40617961.133.46$147,699
Jun 20092,11737866.163.90$141,533
May 20092,66243054.743.93$147,406
Apr 20092,97435846.773.59$140,378
Mar 20093,46631442.144.06$147,332
Feb 20091,98623432.814.63$66,245
Jan 20091,94713335.865.37$70,534
Dec 200882213737.105.98$31,315
Nov 20081,07612855.496.86$60,585
Oct 20085531275.246.92$41,691
Sep 200834859101.767.88$35,877
Aug 2008687183114.228.48$80,022
Jul 2008659241131.0811.39$89,127
Jun 200865884131.3313.03$87,510
May 2008711152123.1711.57$89,333
Apr 2008697154110.3110.45$78,496
Mar 2008695174101.909.66$72,502
Feb 200848115792.538.77$45,884
Jan 20081987690.388.21$18,519
Dec 200775730288.337.30$69,071
Nov 200772217391.677.29$67,447
Oct 200781418182.856.92$68,693
Sep 200776120175.846.24$58,969
Aug 200770322769.066.39$49,999
Jul 200785623970.906.39$62,217
Jun 20077576962.007.55$47,455
May 20077196958.747.85$42,775
Apr 20077774659.617.81$46,676
Mar 20077625856.927.30$43,797
Feb 20077506555.108.22$41,859
Jan 20077594850.306.73$38,501
Dec 20068266756.656.92$47,256
Nov 20068477754.207.62$46,494
Oct 20068686954.906.01$48,068
Sep 20069394960.085.04$56,662
Aug 20061,0226468.717.34$70,691
Jul 20067765369.376.34$54,167
Jun 20061,1634866.286.38$77,390
May 20068525166.016.42$56,568
Apr 20067443464.397.36$48,156
Mar 20067196456.707.08$41,221
Feb 20066345557.597.75$36,938
Jan 20066896660.598.93$42,336
Dec 20058345854.9413.42$46,598
Nov 20056373654.6910.59$35,219
Oct 2005623658.3413.80$36,429
Sep 20056753061.4512.08$41,841
Aug 20054595461.519.80$28,762
Jul 20051124755.697.84$6,606
Jun 20057567752.337.38$40,130
May 20051,61493545.226.65$79,204
Apr 20051,47596849.207.36$79,695
Mar 20051,7641,57250.377.15$100,100
Feb 20051,95165245.226.31$92,340
Jan 20052,04079943.166.32$93,098
Dec 20041,90564939.866.75$80,315
Nov 20041,96943945.286.33$91,935
Oct 20042,26638649.706.52$115,135
Sep 20042,3025143.245.28$99,808
Aug 20042,6315842.375.55$111,797
Jul 20042,6915638.286.08$103,352
Jun 20042,7885736.106.43$101,013
May 20042,4355137.486.49$91,595
Apr 20042,10013434.475.86$73,172
Mar 20042,98424734.365.53$103,896
Feb 20043,35416932.455.51$109,768
Jan 20044,45821532.036.30$144,144
Dec 20033,6559730.266.30$111,212
Nov 20034,5478328.804.60$131,335
Oct 20036,82012928.174.76$192,733
Sep 20039,60920426.314.75$253,782
Aug 200311,06629929.765.13$330,858
Jul 200311,06030029.415.17$326,826
Jun 200310,30734528.565.98$296,432
May 200310,91234526.595.97$292,211
Apr 20038,47612026.675.41$226,704
Mar 200310,39227131.146.10$325,259
Feb 20039,57148133.487.93$324,249
Jan 200311,75325730.315.58$357,668
Dec 200210,036026.914.85$270,069
Nov 200212,575024.664.14$310,100
Oct 2002456026.464.23$12,066

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                  237 bbl  × $106.41 =    $25,219
Casinghead gas       850 Mcf  × $  3.05 =     $2,589

────────────────────────────────────────────────────
Month total                                  $27,808

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/68503 is the state's own key, not one this site invented.