MARTHA

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 15636District 7CField 85279200OilCasinghead gasSaveExport
Value, all time
$23.7 M
Dec 2004 – May 2026
Value, last 12 filed months
$152 k
at the published price for each month
Months reported
258
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
OilDisposition277,878 bbl$18,363,846
Casinghead gasProduction1,055,883 Mcf$5,332,431
Total$23,696,277

Wells on this lease (5)

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 31.4205, -102.0837. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.7 miles.

31.42048, -102.08302 · 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
20.0%
1 of 5 wells
With a plug date
20.0%
1 of 5 wells
Median depth
10,280 ft
5 wells filed one
Completion to plug
9.6 years
median over 1 well

What the state filed about each well

On the RRC proration schedule
120.0%
A plug date is filed
120.0%
BothOn the schedule and plugged. Neither fact cancels the other.
120.0%
NeitherNo plug date, and not on the schedule.
480.0%

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 10,240 and 10,350 ft, median 10,280 ft, over the 5 wells that filed a depth.

Completions filed
Jan 2005 – Mar 2015
5 of 5 wells
Plug dates filed
Apr 2015
1 of 5 wells; 4 filed none

Last completion to plug: a median of 9.6 years across the 1 well that filed both dates, with the middle half between 9.6 years and 9.6 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

5 wells

42-46139675610,240 ftMar 2015
42-46136650410,280 ftJun 2010
42-46134754310,275 ftSep 2005Apr 2015Yes
42-46134598110,350 ftJul 2005
42-46134597210,350 ftJan 2005

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 (258)

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

258 months

May 2026071106.413.05$216
Apr 202618126698.932.87$18,670
Mar 202618566089.753.15$18,682
Feb 202622646663.503.75$16,099
Jan 2026036259.138.00$2,895
Dec 202519355856.664.41$13,398
Nov 202521961858.593.93$15,258
Oct 202518568959.383.30$13,262
Sep 202522670262.743.08$16,339
Aug 202525474663.933.01$18,487
Jul 2025073766.743.32$2,443
Jun 202521870466.483.13$16,695
May 202518872260.553.23$13,717
Apr 202521070262.363.54$15,583
Mar 202521072467.704.27$17,307
Feb 202521160170.884.34$17,565
Jan 202519764074.324.28$17,379
Dec 202435170868.993.12$26,425
Nov 202416972469.052.20$13,261
Oct 202417769371.372.28$14,214
Sep 202417674569.612.36$14,013
Aug 202419174175.632.06$15,974
Jul 2024074479.932.15$1,597
Jun 202416370178.082.63$14,573
May 2024167078.812.20$13,161
Apr 202417571984.451.66$15,972
Mar 202419075680.301.55$16,425
Feb 202440270176.091.78$31,839
Jan 202419774573.023.30$16,842
Dec 202319672771.262.61$15,865
Nov 202319772377.892.81$17,374
Oct 202317779485.443.09$17,574
Sep 202319181789.042.74$19,241
Aug 202317581880.522.67$16,277
Jul 202322084974.852.64$18,710
Jun 202341846368.962.26$29,871
May 202322984270.622.23$18,047
Apr 2023078378.122.24$1,752
Mar 202322175772.852.39$17,911
Feb 202323272775.112.47$19,218
Jan 20232401,09976.533.39$22,090
Dec 20224541,16076.415.73$41,336
Nov 20223491,22385.005.65$36,570
Oct 20223641,24687.185.86$39,040
Sep 20222151,19284.888.16$27,980
Aug 20224241,28794.529.13$51,823
Jul 20221611,540101.587.54$27,969
Jun 20223961,739115.097.98$59,448
May 20224151,605109.378.43$58,924
Apr 20222131,393104.226.84$31,724
Mar 20224211,369108.885.08$52,788
Feb 20222051,12891.054.86$24,146
Jan 20224501,23381.844.54$42,423
Dec 202126894771.323.90$22,806
Nov 20215371,16077.435.24$47,655
Oct 20215272,16779.795.71$54,431
Sep 20212202,23769.865.35$27,339
Aug 20214412,19066.024.22$38,358
Jul 20215982,28570.783.98$51,425
Jun 20211,1192,32269.493.38$85,609
May 20213682,13863.483.02$29,812
Apr 20213602,03160.362.76$27,332
Mar 20213522,10661.302.72$27,299
Feb 20214621,41357.805.55$34,543
Jan 20213621,98050.412.81$23,813
Dec 20203611,88444.642.68$21,156
Nov 20203351,84938.772.71$17,992
Oct 20207461,93836.972.48$32,383
Sep 20203941,89037.091.99$18,377
Aug 20207452,01239.982.39$34,584
Jul 20202461,88338.371.83$12,876
Jun 20203981,90234.901.69$17,105
May 20203852,02316.921.81$10,185
Apr 20203792,12014.751.80$9,416
Mar 20204832,18730.341.86$18,714
Feb 20207652,08449.881.98$42,286
Jan 20203742,18657.252.09$25,991
Dec 20198012,32059.012.30$52,613
Nov 20197192,23155.302.75$45,898
Oct 20196182,16753.472.42$38,285
Sep 20196491,96555.052.66$40,949
Aug 20192271,81153.112.30$16,229
Jul 20196511,96656.272.46$41,468
Jun 20195661,98452.782.49$34,816
May 20195482,07558.482.74$37,733
Apr 20199192,10362.632.75$63,342
Mar 20192722,09656.803.06$21,868
Feb 20197411,92350.852.79$43,049
Jan 20194442,23646.033.23$27,656
Dec 20187932,21746.594.19$46,225
Nov 20188502,34352.934.24$54,918
Oct 20187892,56861.443.40$57,202
Sep 20188332,31459.543.11$56,789
Aug 20184222,20859.403.07$31,838
Jul 20184262,32265.142.93$34,557
Jun 20188632,32560.183.08$59,089
May 20188802,56965.382.90$64,987
Apr 20188692,50463.842.90$62,741
Mar 20181,2582,34461.222.79$83,547
Feb 20181,1951,99261.782.77$79,337
Jan 20184792,04962.874.01$38,330
Dec 20178991,95257.272.92$57,189
Nov 20174601,70355.423.12$30,804
Oct 20173891,79849.292.98$24,538
Sep 20177271,95047.523.09$40,567
Aug 20177822,12645.373.00$41,867
Jul 20178622,50143.873.09$45,537
Jun 2017049442.493.09$1,525
May 201737452845.373.26$18,691
Apr 2017053347.933.21$1,712
Mar 20174301,00146.772.98$23,098
Feb 201702,34850.452.95$6,933
Jan 20177632,81249.413.42$47,314
Dec 20167503,04548.763.72$47,906
Nov 20166473,01742.492.64$35,469
Oct 20167003,07646.193.09$41,839
Sep 20166913,19441.553.10$38,614
Aug 20163432,91941.442.92$22,750
Jul 20166943,49141.622.92$39,093
Jun 20166993,30045.352.69$40,563
May 20166863,73442.521.99$36,603
Apr 20168614,08636.561.99$39,614
Mar 20168834,59433.011.79$37,390
Feb 20161,0544,37426.472.06$36,926
Jan 20168785,26027.352.36$36,450
Dec 20151,2246,12032.362.00$51,857
Nov 20151,3956,75038.792.17$68,742
Oct 20151,3887,62443.552.43$78,948
Sep 20151,3777,95642.992.76$81,143
Aug 20151,7358,32040.162.87$93,577
Jul 20153,07311,66648.152.95$182,322
Jun 20153,81013,94356.152.88$254,127
May 20155,4609,43755.212.96$329,337
Apr 20153,1154,31249.822.71$166,860
Mar 20157352,71842.892.93$39,501
Feb 20153422,43644.662.98$22,524
Jan 20155142,61743.433.10$30,437
Dec 20147142,65254.693.59$48,573
Nov 20145482,70170.464.25$50,096
Oct 20148813,10878.303.90$81,106
Sep 20143562,68886.164.05$41,547
Aug 20143452,69689.394.04$41,718
Jul 20145243,07896.564.18$63,462
Jun 20143462,49798.164.74$45,791
May 20145223,22094.734.73$64,669
Apr 20147173,16995.944.81$84,029
Mar 20145273,67195.895.06$69,098
Feb 20143593,33097.406.19$55,586
Jan 20149054,13590.404.86$101,911
Dec 20137144,25291.824.35$84,075
Nov 20139094,09388.853.74$96,065
Oct 20135604,59997.423.78$71,936
Sep 20137374,670104.113.72$94,091
Aug 20137435,223104.253.52$95,856
Jul 20135554,867102.523.72$74,993
Jun 20137195,04094.403.93$87,698
May 20139085,30294.834.15$108,104
Apr 20135485,39793.964.28$74,603
Mar 20131,0735,84393.623.91$123,317
Feb 20137505,53991.233.42$87,365
Jan 20137236,31891.603.42$87,834
Dec 20121,1326,75086.773.42$121,310
Nov 20121,1137,10086.953.62$122,513
Oct 20127327,18789.383.40$89,860
Sep 20127496,40994.672.92$89,612
Aug 20121,1106,57092.662.91$121,959
Jul 20129145,04785.133.02$93,055
Jun 20129125,65879.822.52$87,049
May 20121,0886,22591.612.49$115,161
Apr 20129056,469101.652.00$104,911
Mar 20121,0886,921105.052.22$129,673
Feb 20129106,760101.102.57$109,376
Jan 20121,4508,47398.092.73$165,396
Dec 20119338,62296.873.24$118,313
Nov 20111,4568,76895.723.31$168,402
Oct 20111,4989,31884.983.65$161,297
Sep 20111,4499,33683.623.99$158,377
Aug 20111,4348,31183.404.15$154,081
Jul 20111,6607,82394.144.52$191,611
Jun 20111,4579,64492.904.64$180,102
May 20112,4027,63098.134.40$269,317
Apr 20112,1924,812105.964.33$253,116
Mar 20111,4565,10596.364.06$161,013
Feb 20111,6353,94985.644.18$156,528
Jan 20111,8834,99186.504.59$185,782
Dec 20102,1396,83585.734.35$213,093
Nov 20102,1287,25180.843.80$199,547
Oct 20103,5289,70178.103.51$309,577
Sep 20106,15314,39372.633.98$504,169
Aug 20103,2316,40073.684.42$266,344
Jul 20103,3847,63372.554.74$281,663
Jun 20101,7175,31570.364.91$146,907
May 20105564,41171.124.24$58,224
Apr 20101,1184,57481.694.12$110,187
Mar 20107344,84978.394.39$78,819
Feb 20105663,75673.585.44$62,088
Jan 20107214,44574.365.96$80,124
Dec 20098975,22971.445.48$92,756
Nov 20098965,40074.593.75$87,091
Oct 20097085,90672.544.11$75,633
Sep 20098786,03265.543.06$76,031
Aug 20099036,48567.423.22$81,752
Jul 20098796,75461.133.46$77,133
Jun 20098696,72666.163.90$83,691
May 20097016,84454.743.93$65,241
Apr 20091,0636,81546.773.59$74,165
Mar 20098836,96942.144.06$65,497
Feb 20091,1016,31332.814.63$65,372
Jan 20099297,03235.865.37$71,083
Dec 20089197,24037.105.98$77,369
Nov 20089277,07555.496.86$99,976
Oct 20089045,45075.246.92$105,742
Sep 20081,2647,781101.767.88$189,916
Aug 20087098,122114.228.48$149,881
Jul 20081,2668,350131.0811.39$261,049
Jun 20088998,157131.3313.03$224,373
May 20081,0558,021123.1711.57$222,782
Apr 20081,2317,557110.3110.45$214,799
Mar 20088847,978101.909.66$167,180
Feb 20088907,56292.538.77$148,675
Jan 20082,1316,86490.388.21$248,924
Dec 20078867,75688.337.30$134,894
Nov 20071,4088,18291.677.29$188,732
Oct 20071,7578,25282.856.92$202,688
Sep 20073546,82875.846.24$69,482
Aug 20071,9448,45669.066.39$188,269
Jul 20071,2218,95270.906.39$143,754
Jun 20071,9637,44662.007.55$177,912
May 20071,2438,41958.747.85$139,072
Apr 20071,7957,68459.617.81$166,975
Mar 20071,7637,99456.927.30$158,722
Feb 20072,0087,29855.108.22$170,601
Jan 20072,8288,57950.306.73$199,958
Dec 20062,5278,44956.656.92$201,608
Nov 20068973,37754.207.62$74,342
Oct 20069402,67254.906.01$67,675
Sep 20061,8314,74960.085.04$133,928
Aug 20062,1825,67068.717.34$191,543
Jul 20062,1465,98269.376.34$186,810
Jun 20062,8116,22266.286.38$226,034
May 20062,3436,97266.016.42$199,457
Apr 20062,8268,10564.397.36$241,623
Mar 20063,69110,28256.707.08$282,106
Feb 20062,4954,57257.597.75$179,125
Jan 20063,2107,82560.598.93$264,397
Dec 20055,0029,90654.9413.42$407,703
Nov 20055,0687,63954.6910.59$358,054
Oct 20055,3277,09558.3413.80$408,658
Sep 20054,0645,20261.4512.08$312,568
Aug 20052,5455,21661.519.80$207,643
Jul 20052,4985,82855.697.84$184,826
Jun 20054,1148,02852.337.38$274,541
May 20055,2127,63945.226.65$286,495
Apr 20055,7768,90549.207.36$349,724
Mar 20057,5628,52950.377.15$441,922
Feb 20052,8334,55145.226.31$156,834
Jan 20054,5453,62143.166.32$219,055
Dec 20046605039.866.75$26,645

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                    0 bbl  × $106.41 =         $0
Casinghead gas        71 Mcf  × $  3.05 =       $216

────────────────────────────────────────────────────
Month total                                     $216

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/15636 is the state's own key, not one this site invented.