DOROTHY

Operated by COG OPERATING LLC (P-5 166150) in the SPRABERRY (TREND AREA) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 15683District 7CField 85279200OilCasinghead gasSaveExport
Value, all time
$66.3 M
Mar 2005 – May 2026
Value, last 12 filed months
$220 k
at the published price for each month
Months reported
255
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 7,461 leases and 22,481 wells, and the rule below applies to all of them.

Discovered
1904-12-31
as the register files it
Field class
Oil and gas
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 80 acres. The field rule took effect on 2016-03-08.

The Commission's schedule remark for this field reads: AREA) 85279200.

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
OilDisposition661,007 bbl$53,138,885
Casinghead gasProduction2,762,482 Mcf$13,144,707
Total$66,283,592

Wells on this lease (11)

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 31.4035, -102.0591. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.8 miles.

31.40351, -102.05925 · 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
54.5%
6 of 11 wells
With a plug date
54.5%
6 of 11 wells
Median depth
10,400 ft
11 wells filed one
Completion to plug
13.1 years
median over 6 wells

What the state filed about each well

On the RRC proration schedule
654.5%
A plug date is filed
654.5%
BothOn the schedule and plugged. Neither fact cancels the other.
654.5%
NeitherNo plug date, and not on the schedule.
545.5%

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, 11 of 11 wells. Median 10,400 ft, with the middle half between 10,378 and 10,434 ft; the shallowest is 10,325 ft and the deepest 10,515 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, 11 of 11 wells, Aug 2005 – Feb 2011. This is the LAST completion filed on each wellbore, not the first — a well recompleted in 2019 counts once, in the 2010s.

Completions filed
Aug 2005 – Feb 2011
11 of 11 wells
Plug dates filed
Feb 2015 – Jun 2026
6 of 11 wells; 5 filed none

Last completion to plug: a median of 13.1 years across the 6 wells that filed both dates, with the middle half between 8.2 years and 16.9 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

11 wells

42-461367832910,443 ftFeb 2011Jun 2026Yes
42-461368272810,515 ftDec 2010
42-461367812710,400 ftOct 2010
42-46135421410,402 ftJun 2008Mar 2019Yes
42-46135538510,376 ftMay 2008Oct 2025Yes
42-46135423310,372 ftMar 2008
42-46135534610,325 ftJan 2008Feb 2015Yes
42-46135480810,380 ftDec 2007Apr 2015Yes
42-46135459710,392 ftNov 2007
42-46134727210,475 ftJul 2006
42-46134760110,425 ftAug 2005Apr 2025Yes

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 (255)

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

255 months

May 20261331,411106.413.05$18,450
Apr 20262581,04498.932.87$28,520
Mar 20261361,08089.753.15$15,607
Feb 20261471,02963.503.75$13,194
Jan 20263141,30159.138.00$28,972
Dec 20251631,22756.664.41$14,651
Nov 20251481,28458.593.93$13,713
Oct 20252891,30659.383.30$21,477
Sep 20251531,23462.743.08$13,396
Aug 20251621,30063.933.01$14,276
Jul 20252881,31866.743.32$23,591
Jun 20251451,29266.483.13$13,682
May 20253081,23960.553.23$22,654
Apr 20253501,12762.363.54$25,819
Mar 20251601,28067.704.27$16,295
Feb 20251471,03170.884.34$14,895
Jan 202515497774.324.28$15,626
Dec 20241491,28368.993.12$14,284
Nov 20243121,36469.052.20$24,542
Oct 20241611,40671.372.28$14,698
Sep 202415196969.612.36$12,802
Aug 20241471,68475.632.06$14,593
Jul 20243071,96579.932.15$28,757
Jun 20243212,03678.082.63$30,426
May 2024403078.812.20$31,760
Apr 20243322,01084.451.66$31,372
Mar 20243482,07780.301.55$31,154
Feb 20243591,99676.091.78$30,876
Jan 20243902,23673.023.30$35,851
Dec 20231741,68071.262.61$16,785
Nov 20233442,12777.892.81$32,766
Oct 20233332,11885.443.09$34,990
Sep 20233362,09489.042.74$35,645
Aug 20233112,11280.522.67$30,687
Jul 20233492,34574.852.64$32,318
Jun 20235782,80668.962.26$46,196
May 20232302,84470.622.23$22,577
Apr 20234442,64878.122.24$40,611
Mar 20236002,86772.852.39$50,571
Feb 20233652,46775.112.47$33,498
Jan 20233732,77976.533.39$37,960
Dec 20226482,68576.415.73$64,896
Nov 20224912,64885.005.65$56,686
Oct 20222393,08387.185.86$38,914
Sep 20224821,23484.888.16$50,986
Aug 20225101,89594.529.13$65,501
Jul 20222252,774101.587.54$43,777
Jun 20226412,994115.097.98$97,656
May 20222393,251109.378.43$53,555
Apr 20225013,256104.226.84$74,477
Mar 20226082,916108.885.08$81,002
Feb 20224392,80791.054.86$53,610
Jan 20226823,25981.844.54$70,603
Dec 20217563,26771.323.90$66,656
Nov 20215013,19377.435.24$55,514
Oct 20212163,48579.795.71$37,147
Sep 20214653,43069.865.35$50,839
Aug 20215263,30066.024.22$48,654
Jul 20212203,20270.783.98$28,322
Jun 20215483,50169.493.38$49,916
May 20215723,40663.483.02$46,589
Apr 20214553,21560.362.76$36,332
Mar 20214883,35361.302.72$39,024
Feb 20215722,90857.805.55$49,195
Jan 20216923,32850.412.81$44,236
Dec 20203942,79744.642.68$25,071
Nov 20203662,63238.772.71$21,314
Oct 20206153,12536.972.48$30,482
Sep 20202923,11837.091.99$17,038
Aug 20204163,54239.982.39$25,080
Jul 20203673,09938.371.83$19,738
Jun 20204343,00834.901.69$20,231
May 20202073,27316.921.81$9,442
Apr 20204593,45514.751.80$13,004
Mar 20206563,75430.341.86$26,871
Feb 20206393,53049.881.98$38,865
Jan 20202113,51457.252.09$19,441
Dec 20199573,35259.012.30$64,197
Nov 20193732,86355.302.75$28,502
Oct 20199773,42153.472.42$60,514
Sep 20192723,80355.052.66$25,079
Aug 20194812,77653.112.30$31,943
Jul 20192462,87756.272.46$20,920
Jun 20197532,78252.782.49$46,674
May 20192483,17158.482.74$23,193
Apr 20194942,63562.632.75$38,187
Mar 20194952,67056.803.06$36,292
Feb 20196102,57350.852.79$38,203
Jan 20194632,76646.033.23$30,241
Dec 20185272,79946.594.19$36,268
Nov 20185212,76552.934.24$39,293
Oct 20185052,73661.443.40$40,324
Sep 20182872,66959.543.11$25,383
Aug 20185552,67359.403.07$41,164
Jul 20182702,37865.142.93$24,560
Jun 20185892,56960.183.08$43,351
May 20185313,28065.382.90$44,231
Apr 20188102,51863.842.90$59,015
Mar 20182902,31761.222.79$24,211
Feb 20181,1152,59461.782.77$76,060
Jan 20182683,33762.874.01$30,228
Dec 20172653,03857.272.92$24,052
Nov 20175632,85655.423.12$40,108
Oct 20176103,04449.292.98$39,149
Sep 20178522,99047.523.09$49,718
Aug 20176602,89645.373.00$38,645
Jul 20171,0023,77543.873.09$55,612
Jun 201704,38242.493.09$13,528
May 20175743,57745.373.26$37,716
Apr 20175762,46247.933.21$35,515
Mar 20176402,71746.772.98$38,039
Feb 20171,2742,93650.452.95$72,942
Jan 20178923,35949.413.42$55,557
Dec 20161,3803,80948.763.72$81,469
Nov 20163392,97342.492.64$22,266
Oct 20167612,84646.193.09$43,945
Sep 20168632,71241.553.10$44,267
Aug 20166823,28341.442.92$37,863
Jul 20166553,32941.622.92$36,996
Jun 20167353,28245.352.69$42,147
May 20168153,32442.521.99$41,272
Apr 20167283,39736.561.99$33,379
Mar 20168553,81833.011.79$35,073
Feb 20167603,32026.472.06$26,968
Jan 20161,0243,39227.352.36$36,026
Dec 20158824,02832.362.00$36,603
Nov 20157293,72038.792.17$36,340
Oct 20158133,96843.552.43$45,035
Sep 20156814,57342.992.76$41,890
Aug 20158015,40740.162.87$47,700
Jul 20156904,82148.152.95$47,422
Jun 20157064,69856.152.88$53,186
May 20157275,66955.212.96$56,892
Apr 20157436,32349.822.71$54,130
Mar 20159757,05742.892.93$62,528
Feb 20159646,49844.662.98$62,392
Jan 20159476,62843.433.10$61,679
Dec 20141,0456,80354.693.59$81,583
Nov 20141,0317,68070.464.25$105,298
Oct 20141,1108,33478.303.90$119,424
Sep 20141,1269,02886.164.05$133,538
Aug 20141,1789,47489.394.04$143,530
Jul 20141,32611,08296.564.18$174,357
Jun 20141,22910,85198.164.74$172,039
May 20141,28711,78394.734.73$177,611
Apr 20141,14311,27495.944.81$163,877
Mar 20141,17211,22095.895.06$169,120
Feb 20141,2429,34797.406.19$178,847
Jan 20141,54511,65890.404.86$196,334
Dec 20131,79012,07991.824.35$216,956
Nov 20131,45012,10188.853.74$174,069
Oct 20131,58014,47897.423.78$208,641
Sep 20131,35014,313104.113.72$193,761
Aug 20131,64116,491104.253.52$229,166
Jul 20131,47616,225102.523.72$211,640
Jun 20131,48615,77494.403.93$202,324
May 20132,35624,03694.834.15$323,147
Apr 20131,95518,16193.964.28$261,468
Mar 20131,75718,88693.623.91$238,389
Feb 20132,20120,87491.233.42$272,184
Jan 20132,49119,54791.603.42$295,025
Dec 20122,44021,43686.773.42$285,033
Nov 20122,70822,98686.953.62$318,784
Oct 20123,14128,25089.383.40$376,784
Sep 20123,33431,56094.672.92$407,734
Aug 20123,68132,16992.662.91$434,634
Jul 20123,29529,66085.133.02$370,100
Jun 20122,79727,00979.822.52$291,293
May 20123,13127,68791.612.49$355,725
Apr 20123,37627,507101.652.00$398,096
Mar 20124,22628,344105.052.22$506,924
Feb 20124,01524,057101.102.57$467,749
Jan 20123,73429,13898.092.73$445,934
Dec 20113,91233,23896.873.24$486,638
Nov 20114,70635,85995.723.31$569,198
Oct 20114,96739,14784.983.65$564,925
Sep 20115,49442,18283.623.99$627,537
Aug 20115,68444,39683.404.15$658,259
Jul 20115,00438,82194.144.52$646,440
Jun 20116,19544,98992.904.64$784,259
May 20116,77344,44798.134.40$860,416
Apr 20117,09442,166105.964.33$934,397
Mar 20118,44138,48596.364.06$969,521
Feb 20116,28525,93785.644.18$646,664
Jan 20118,64439,81086.504.59$930,385
Dec 20109,28441,26985.734.35$975,345
Nov 20107,97633,73980.843.80$772,830
Oct 20106,57526,30878.103.51$605,819
Sep 20104,90128,10672.633.98$467,807
Aug 20105,82032,48773.684.42$572,389
Jul 20107,22238,29172.554.74$705,321
Jun 20106,82533,58270.364.91$645,108
May 20105,99622,23471.124.24$520,601
Apr 20105,93422,54081.694.12$577,674
Mar 20106,07125,62378.394.39$588,357
Feb 20106,74331,01573.585.44$664,945
Jan 201011,04132,33774.365.96$1,013,870
Dec 20097,96620,18671.445.48$679,786
Nov 20097,35623,58674.593.75$637,167
Oct 20097,88425,16372.544.11$675,332
Sep 20097,85930,92865.543.06$609,865
Aug 20098,90337,42367.423.22$720,686
Jul 200913,23048,75261.133.46$977,651
Jun 200913,18237,75166.163.90$1,019,161
May 200911,38128,14254.743.93$733,474
Apr 20097,87924,56646.773.59$456,631
Mar 20098,93027,92342.144.06$489,650
Feb 20097,60825,22532.814.63$366,486
Jan 200916,44436,36835.865.37$785,014
Dec 20086,37627,74437.105.98$402,379
Nov 200810,08737,66655.496.86$818,130
Oct 200816,18646,42275.246.92$1,539,167
Sep 200818,49450,503101.767.88$2,279,766
Aug 200819,72335,899114.228.48$2,557,293
Jul 200821,60130,914131.0811.39$3,183,552
Jun 200816,07430,955131.3313.03$2,514,423
May 200818,22041,132123.1711.57$2,720,231
Apr 200816,90927,571110.3110.45$2,153,483
Mar 200815,93320,232101.909.66$1,819,096
Feb 200810,93814,24392.538.77$1,137,013
Jan 20086,8827,93790.388.21$687,124
Dec 20073,7525,37188.337.30$370,633
Nov 20071,3023,62591.677.29$145,787
Oct 20071,2313,79982.856.92$128,285
Sep 20071,0673,67275.846.24$103,850
Aug 20071,2423,97669.066.39$111,171
Jul 20071,2443,90170.906.39$113,119
Jun 20071,5953,36662.007.55$124,298
May 20071,5903,90458.747.85$124,028
Apr 20071,4184,47059.617.81$119,416
Mar 20071,8504,76656.927.30$140,103
Feb 20071,4773,77755.108.22$112,415
Jan 20071,55586750.306.73$84,049
Dec 20061,2872,88256.656.92$92,847
Nov 20062,2315,50454.207.62$162,847
Oct 20062,3194,23054.906.01$152,751
Sep 20062,1742,18960.085.04$141,640
Aug 20061,1051,76768.717.34$88,894
Jul 20067211,23969.376.34$57,874
Jun 20065331,10166.286.38$42,356
May 20065242,39166.016.42$49,951
Apr 20069413,56264.397.36$86,809
Mar 20061,1254,03856.707.08$92,388
Feb 20061,7834,67757.597.75$138,935
Jan 20061,8485,23660.598.93$158,745
Dec 20052,1655,85954.9413.42$197,546
Nov 20052,9428,35454.6910.59$249,353
Oct 20053,3038,47058.3413.80$309,547
Sep 20054,4077,75661.4512.08$364,495
Aug 20054,2976,82161.519.80$331,133
Jul 20059296,59755.697.84$103,481
Jun 20052,40310,01452.337.38$199,663
May 20053,6225,75845.226.65$202,084
Apr 20052,9273,16149.207.36$167,275
Mar 200577798050.377.15$46,149

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                  133 bbl  × $106.41 =    $14,153
Casinghead gas     1,411 Mcf  × $  3.05 =     $4,298

────────────────────────────────────────────────────
Month total                                  $18,450

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. 7C/O/15683 is the state's own key, not one this site invented.