WORLEY

Operated by PORTER OPERATING COMPANY, L.L.C. (P-5 671480) in the PANHANDLE GRAY COUNTY FIELD field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 511District 10Field 68873001OilCasinghead gasSaveExport
Value, all time
$3.7 M
Jan 1993 – May 2026
Value, last 12 filed months
$29 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 837 leases and 6,360 wells, and the rule below applies to all of them.

Discovered
1921-12-31
as the register files it
Field class
Oil
the register's own label
Between wells
467 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 1989-05-01.

The Commission's schedule remark for this field reads: UNTIL THE FLUID MIGRATION FROM SUCH STRATA IS ELIMINATED.

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
OilDisposition96,353 bbl$3,474,181
Casinghead gasProduction150,155 Mcf$236,175
Total$3,710,356

96,540 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 (16)

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 35.4939, -100.9052. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.4 miles.

35.49394, -100.90519 · 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 16 wells
With a plug date
0.0%
0 of 16 wells
Median depth
3,219 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.
16100.0%

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

Total depth in feet, 1 of 16 wells. Median 3,219 ft, with the middle half between 3,219 and 3,219 ft; the shallowest is 3,219 ft and the deepest 3,219 ft. The median is published rather than the mean, because a single mis-keyed depth moves a mean and cannot move a median.

When they were last completed

Last completion by decade, 1 of 16 wells, Feb 1981. This is the LAST completion filed on each wellbore, not the first — a well recompleted in 2019 counts once, in the 2010s.

Completions filed
Feb 1981
1 of 16 wells; 15 filed none

16 wells

42-179825621
42-179825632
42-179825643
42-179825654
42-179825665
42-179825676
42-179825687
42-179825698
42-179825709
42-1798257110
42-1798257211
42-1798257312
42-1798257413
42-1798257514
42-1798257615
42-17982577163,219 ftFeb 1981

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 202693098.932.87$9,200
Mar 20260089.753.15$0
Feb 2026117063.503.75$7,430
Jan 202670059.138.00$4,139
Dec 20250056.664.41$0
Nov 20258010558.593.93$5,099
Oct 202553059.383.30$3,147
Sep 20250062.743.08$0
Aug 20250063.933.01$0
Jul 20250066.743.32$0
Jun 20250066.483.13$0
May 20250060.553.23$0
Apr 20250062.363.54$0
Mar 20250067.704.27$0
Feb 20250070.884.34$0
Jan 20250074.324.28$0
Dec 2024137068.993.12$9,452
Nov 20240069.052.20$0
Oct 20240071.372.28$0
Sep 20240069.612.36$0
Aug 20240075.632.06$0
Jul 2024125079.932.15$9,991
Jun 20240078.082.63$0
May 202466078.812.20$5,201
Apr 20240084.451.66$0
Mar 202479080.301.55$6,344
Feb 20240076.091.78$0
Jan 202461073.023.30$4,454
Dec 20230071.262.61$0
Nov 20230077.892.81$0
Oct 20230085.443.09$0
Sep 202348089.042.74$4,274
Aug 202348080.522.67$3,865
Jul 202366074.852.64$4,940
Jun 202372068.962.26$4,965
May 202366070.622.23$4,661
Apr 202370078.122.24$5,468
Mar 202367072.852.39$4,881
Feb 202383075.112.47$6,234
Jan 2023101076.533.39$7,730
Dec 20220076.415.73$0
Nov 2022101085.005.65$8,585
Oct 202262087.185.86$5,405
Sep 2022106084.888.16$8,997
Aug 2022100094.529.13$9,452
Jul 2022660101.587.54$6,704
Jun 2022880115.097.98$10,128
May 20221210109.378.43$13,234
Apr 202200104.226.84$0
Mar 2022780108.885.08$8,493
Feb 202262091.054.86$5,645
Jan 202297081.844.54$7,938
Dec 202173071.323.90$5,206
Nov 20210077.435.24$0
Oct 202158079.795.71$4,628
Sep 2021114069.865.35$7,964
Aug 2021132066.024.22$8,715
Jul 2021131070.783.98$9,272
Jun 20210069.493.38$0
May 20210063.483.02$0
Apr 20210060.362.76$0
Mar 20210061.302.72$0
Feb 20210057.805.55$0
Jan 20210050.412.81$0
Dec 20200044.642.68$0
Nov 20200038.772.71$0
Oct 20200036.972.48$0
Sep 202063037.091.99$2,337
Aug 20200039.982.39$0
Jul 202087038.371.83$3,338
Jun 2020128034.901.69$4,467
May 2020106016.921.81$1,794
Apr 202083014.751.80$1,224
Mar 202079030.341.86$2,397
Feb 202080049.881.98$3,990
Jan 202094057.252.09$5,382
Dec 2019111059.012.30$6,550
Nov 201964055.302.75$3,539
Oct 201985053.472.42$4,545
Sep 201992055.052.66$5,065
Aug 2019118053.112.30$6,267
Jul 2019119056.272.46$6,696
Jun 2019164052.782.49$8,656
May 2019170058.482.74$9,942
Apr 2019164062.632.75$10,271
Mar 2019145056.803.06$8,236
Feb 2019126050.852.79$6,407
Jan 2019128046.033.23$5,892
Dec 2018162046.594.19$7,548
Nov 20180052.934.24$0
Oct 2018107061.443.40$6,574
Sep 201886059.543.11$5,120
Aug 201851059.403.07$3,029
Jul 2018146065.142.93$9,510
Jun 201874060.183.08$4,453
May 201889065.382.90$5,819
Apr 201893063.842.90$5,937
Mar 2018165061.222.79$10,101
Feb 20180061.782.77$0
Jan 201880062.874.01$5,030
Dec 2017115057.272.92$6,586
Nov 2017183055.423.12$10,142
Oct 2017168049.292.98$8,281
Sep 2017113047.523.09$5,370
Aug 2017182045.373.00$8,257
Jul 2017169043.873.09$7,414
Jun 2017177042.493.09$7,521
May 201741045.373.26$1,860
Apr 2017123047.933.21$5,895
Mar 2017258046.772.98$12,067
Feb 2017167050.452.95$8,425
Jan 201767049.413.42$3,310
Dec 2016163048.763.72$7,948
Nov 2016171042.492.64$7,266
Oct 2016182046.193.09$8,407
Sep 2016166041.553.10$6,897
Aug 201672041.442.92$2,984
Jul 2016170041.622.92$7,075
Jun 201680045.352.69$3,628
May 2016182042.521.99$7,739
Apr 2016183036.561.99$6,690
Mar 20160033.011.79$0
Feb 2016178026.472.06$4,712
Jan 2016179027.352.36$4,896
Dec 2015181032.362.00$5,857
Nov 2015182038.792.17$7,060
Oct 20150043.552.43$0
Sep 2015363042.992.76$15,605
Aug 2015173040.162.87$6,948
Jul 2015132048.152.95$6,356
Jun 20150056.152.88$0
May 2015166055.212.96$9,165
Apr 2015370049.822.71$18,433
Mar 20150042.892.93$0
Feb 2015246044.662.98$10,986
Jan 20150043.433.10$0
Dec 20140054.693.59$0
Nov 2014169070.464.25$11,908
Oct 2014168078.303.90$13,154
Sep 2014179086.164.05$15,423
Aug 2014351089.394.04$31,376
Jul 201463096.564.18$6,083
Jun 2014173198.164.74$16,986
May 2014181094.734.73$17,146
Apr 2014351095.944.81$33,675
Mar 20140095.895.06$0
Feb 2014183097.406.19$17,824
Jan 2014355090.404.86$32,092
Dec 2013184091.824.35$16,895
Nov 20131841488.853.74$16,401
Oct 2013348097.423.78$33,902
Sep 201300104.113.72$0
Aug 20133610104.253.52$37,634
Jul 20133440102.523.72$35,267
Jun 2013357094.403.93$33,701
May 2013119094.834.15$11,285
Apr 20130093.964.28$0
Mar 2013180093.623.91$16,852
Feb 201301391.233.42$44
Jan 201317214191.603.42$16,237
Dec 20121806586.773.42$15,841
Nov 201235415586.953.62$31,342
Oct 20121803289.383.40$16,197
Sep 20121773794.672.92$16,865
Aug 20121784992.662.91$16,636
Jul 20121744485.133.02$14,946
Jun 20121764879.822.52$14,169
May 20121701091.612.49$15,599
Apr 201217423101.652.00$17,733
Mar 201230642105.052.22$32,239
Feb 201209101.102.57$23
Jan 201208298.092.73$224
Dec 201116723396.873.24$16,932
Nov 20117526695.723.31$8,060
Oct 20111668784.983.65$14,424
Sep 20111712483.623.99$14,395
Aug 20111785983.404.15$15,090
Jul 20111733594.144.52$16,444
Jun 20111674792.904.64$15,732
May 20112733998.134.40$26,961
Apr 201117338105.964.33$18,496
Mar 2011177796.364.06$17,084
Feb 20113418585.644.18$29,559
Jan 2011011986.504.59$546
Dec 2010012885.734.35$557
Nov 20101695780.843.80$13,878
Oct 201006278.103.51$218
Sep 20101615372.633.98$11,904
Aug 20101756373.684.42$13,172
Jul 20103494072.554.74$25,509
Jun 201007670.364.91$373
May 20101635971.124.24$11,842
Apr 20101699581.694.12$14,197
Mar 201016815278.394.39$13,837
Feb 201017314973.585.44$13,540
Jan 201017022574.365.96$13,983
Dec 200918021871.445.48$14,055
Nov 200917626174.593.75$14,107
Oct 200917618472.544.11$13,523
Sep 200936016965.543.06$24,112
Aug 200917818067.423.22$12,580
Jul 20091789561.133.46$11,210
Jun 200904666.163.90$179
May 200917816854.743.93$10,403
Apr 200918115746.773.59$9,029
Mar 200917817442.144.06$8,207
Feb 200918316732.814.63$6,778
Jan 200935511535.865.37$13,348
Dec 200817918337.105.98$7,735
Nov 200835517155.496.86$20,872
Oct 2008019775.246.92$1,364
Sep 2008349122101.767.88$36,475
Aug 200817588114.228.48$20,735
Jul 200824064131.0811.39$32,188
Jun 2008071131.3313.03$925
May 200817257123.1711.57$21,845
Apr 2008066110.3110.45$690
Mar 2008162152101.909.66$17,977
Feb 200818126192.538.77$19,037
Jan 200835820490.388.21$34,030
Dec 2007014088.337.30$1,022
Nov 200735718791.677.29$34,090
Oct 200717923182.856.92$16,429
Sep 200718419175.846.24$15,147
Aug 200728218769.066.39$20,669
Jul 200717918570.906.39$13,873
Jun 200727518862.007.55$18,469
May 200717622458.747.85$12,096
Apr 2007019959.617.81$1,553
Mar 200737125056.927.30$22,943
Feb 2007020255.108.22$1,660
Jan 2007023350.306.73$1,567
Dec 200619318656.656.92$12,220
Nov 200618114954.207.62$10,945
Oct 20061801054.906.01$9,942
Sep 2006177060.085.04$10,634
Aug 20060168.717.34$7
Jul 200617612269.376.34$12,983
Jun 2006019166.286.38$1,219
May 20061819866.016.42$12,577
Apr 2006015264.397.36$1,119
Mar 200608156.707.08$574
Feb 20061819457.597.75$11,152
Jan 200616813560.598.93$11,385
Dec 200518218454.9413.42$12,468
Nov 200517329254.6910.59$12,553
Oct 200516631358.3413.80$14,003
Sep 200517811461.4512.08$12,315
Aug 200517730961.519.80$13,914
Jul 200517938055.697.84$12,949
Jun 200518031652.337.38$11,752
May 2005039845.226.65$2,647
Apr 200517830949.207.36$11,032
Mar 200517826950.377.15$10,891
Feb 2005024345.226.31$1,534
Jan 200516929943.166.32$9,184
Dec 200417928939.866.75$9,086
Nov 200418031345.286.33$10,132
Oct 200417536549.706.52$11,076
Sep 2004014943.245.28$787
Aug 200418231742.375.55$9,471
Jul 200417932038.286.08$8,799
Jun 2004026336.106.43$1,692
May 200417825137.486.49$8,302
Apr 2004022834.475.86$1,336
Mar 200417829034.365.53$7,720
Feb 200417729132.455.51$7,347
Jan 200417926432.036.30$7,396
Dec 200317731430.266.30$7,335
Nov 200317826228.804.60$6,330
Oct 200317838928.174.76$6,866
Sep 200317833926.314.75$6,293
Aug 2003039629.765.13$2,031
Jul 200316839129.415.17$6,963
Jun 2003041128.565.98$2,459
May 200317636126.595.97$6,836
Apr 200318231426.675.41$6,552
Mar 200318237831.146.10$7,972
Feb 200334940233.487.93$14,871
Jan 200353531330.315.58$17,963
Dec 2002035826.914.85$1,738
Nov 200254035524.664.14$14,785
Oct 200218047326.464.23$6,763
Sep 200236050827.443.64$11,725
Aug 200218068425.963.16$6,837
Jul 20023571,79524.583.06$14,271
Jun 20023561,81223.733.34$14,497
May 20021811,82724.663.58$11,011
Apr 20023591,75623.653.51$14,658
Mar 20023501,79322.003.10$13,263
Feb 20021821,55418.222.38$7,008
Jan 20021761,70917.172.38$7,082
Dec 200117445516.932.36$4,022
Nov 200135226218.072.41$6,991
Oct 200136433419.782.53$8,045
Sep 200137245924.262.25$10,058
Aug 200136649624.873.05$10,617
Jul 200136517323.933.20$9,288
Jun 200135335124.563.82$10,012
May 200136046225.524.31$11,177
Apr 200173422224.685.34$19,300
Mar 200117624124.545.38$5,615
Feb 200136844127.755.77$12,755
Jan 200186730027.478.40$26,336
Dec 2000023726.889.12$2,162
Nov 200052118132.215.66$17,806
Oct 200018435731.235.15$7,583
Sep 200036516631.875.19$12,494
Aug 20003612029.644.54$10,791
Jul 20005473828.534.09$15,761
Jun 200037229929.304.40$12,214
May 200017323427.263.68$5,577
Apr 200036512224.513.12$9,326
Mar 200036010628.422.86$10,534
Feb 20005664527.622.73$15,756
Jan 200016924325.272.48$4,873
Dec 199935721324.282.42$9,184
Nov 199936821223.192.43$9,050
Oct 199937535320.982.80$8,857
Sep 199972933021.752.62$16,720
Aug 199954040319.262.88$11,559
Jul 199936155117.892.37$7,765
Jun 199936125515.942.36$6,357
May 19993688615.792.32$6,010
Apr 199937244915.102.21$6,609
Mar 199918323512.471.84$2,714
Feb 199917619.981.82$1,758
Jan 1999180110.381.90$1,870
Dec 199835719.201.77$3,286
Nov 199818112610.892.19$2,246
Oct 199818121312.421.97$2,667
Sep 19983661212.592.08$4,633
Aug 1998361111.301.91$4,081
Jul 1998180811.742.24$2,131
Jun 199836215211.242.24$4,409
May 199836822912.622.21$5,149
Apr 199817916913.042.51$2,758
Mar 1998550112.802.31$7,042
Feb 1998552113.952.30$7,703
Jan 1998360114.702.15$5,294
Dec 19970116.322.41$2
Nov 199718212518.193.09$3,697
Oct 199734336219.253.15$7,743
Sep 199754116317.742.95$10,079
Aug 199737127017.862.55$7,316
Jul 199754759417.582.25$10,951
Jun 199755035517.242.26$10,283
May 199736663418.972.31$8,407
Apr 199736779217.882.08$8,212
Mar 199754996018.951.94$12,265
Feb 19973671,43620.492.21$10,688
Jan 19975441,74223.483.54$18,939
Dec 199654788423.32$12,756
Nov 19966981,27221.97$15,335
Oct 19967451,75323.31$17,366
Sep 19965451,94122.22$12,110
Aug 19967332,35320.26$14,851
Jul 19967302,27919.55$14,272
Jun 19963672,25118.73$6,874
May 19967262,36919.43$14,106
Apr 19967342,37721.51$15,788
Mar 19969102,57519.38$17,636
Feb 19963672,02416.98$6,232
Jan 19961,0861,90617.07$18,538
Dec 19953661,92017.19$6,292
Nov 19957242,07416.00$11,584
Oct 19957131,91115.43$11,002
Sep 19953582,17916.18$5,792
Aug 19957282,61615.92$11,590
Jul 19955332,25215.24$8,123
Jun 19957182,30516.41$11,782
May 19957242,54517.56$12,713
Apr 19959012,38917.73$15,975
Mar 19955421,89416.44$8,910
Feb 19958941,98416.58$14,823
Jan 19957172,30615.92$11,415
Dec 19947092,16615.03$10,656
Nov 19947142,24115.90$11,353
Oct 19945472,52915.58$8,522
Sep 19947282,27115.29$11,131
Aug 19947212,23716.13$11,630
Jul 19945482,65117.56$9,623
Jun 19947172,66517.09$12,254
May 19947292,85515.88$11,577
Apr 19947232,05914.14$10,223
Mar 19949072,45812.46$11,301
Feb 19947192,03112.50$8,988
Jan 199483293812.66$10,533
Dec 19939072,62412.33$11,183
Nov 19931,1042,00414.49$15,997
Oct 19938581,47515.85$13,599
Sep 19931,1012,12615.03$16,548
Aug 19939042,33515.66$14,157
Jul 19939122,18615.46$14,100
Jun 19931,1041,93116.79$18,536
May 19936851,65417.68$12,111
Apr 19931,09878718.05$19,819
Mar 19931,08669618.14$19,700
Feb 199372064117.90$12,888
Jan 199372062116.93$12,190

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                   93 bbl  × $ 98.93 =     $9,200
Casinghead gas         0 Mcf  × $  2.87 =         $0

────────────────────────────────────────────────────
Month total                                   $9,200

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. 10/O/511 is the state's own key, not one this site invented.