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FOUR CORNERS TXL FEE "C"

Operated by DIAMONDBACK E&P LLC (P-5 217012) in the SALLIE ANN (SPRABERRY-WOLFCAMP) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 44507District 08Field 79820800OilCasinghead gasSaveExport
Value, all time
$180.1 M
Aug 2013 – May 2026
Value, last 12 filed months
$1.5 M
at the published price for each month
Months reported
154
no gaps in the span
Streams
2
oil, casinghead gas

The SALLIE ANN (SPRABERRY-WOLFCAMP) field

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 125 leases and 849 wells, and the rule below applies to all of them.

Discovered
2004-12-13
as the register files it
Field class
Oil and gas
the register's own label
Between wells
500 ft
minimum
From a lease line
660 ft
minimum

A drilling unit in this field needs at least 40 acres. The field rule took effect on 2012-11-20.

The Commission's schedule remark for this field reads: “FIELDS”

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
OilDisposition2,327,147 bbl$151,185,567
Casinghead gasProduction8,960,750 Mcf$28,901,711
Total$180,087,278

Wells on this lease (23)

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 31.6451, -102.3257. A lease has no coordinate of its own — that point is the mean of its wells, and they span 2.8 miles.

31.64324, -102.32007 · 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
56.5%
13 of 23 wells
With a plug date
56.5%
13 of 23 wells
Median depth
11,114 ft
23 wells filed one
Completion to plug
5.7 years
median over 13 wells

What the state filed about each well

On the RRC proration schedule
1356.5%
A plug date is filed
1356.5%
BothOn the schedule and plugged. Neither fact cancels the other.
1356.5%
NeitherNo plug date, and not on the schedule.
1043.5%

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, 23 of 23 wells. Median 11,114 ft, with the middle half between 10,875 and 11,218 ft; the shallowest is 15 ft and the deepest 11,320 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, 23 of 23 wells, Sep 2013 – May 2015. This is the LAST completion filed on each wellbore, not the first — a well recompleted in 2019 counts once, in the 2010s.

Completions filed
Sep 2013 – May 2015
23 of 23 wells
Plug dates filed
Sep 2020 – Mar 2021
13 of 23 wells; 10 filed none

Last completion to plug: a median of 5.7 years across the 13 wells that filed both dates, with the middle half between 5.6 years and 5.7 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

23 wells

42-103365131712C11,159 ftMay 2015Dec 2020Yes
42-103365231705CR11,220 ftMay 2015Mar 2021Yes
42-103364781710C11,225 ftMay 2015Jan 2021Yes
42-103364761706C15 ftMay 2015Dec 2020Yes
42-135432641709E11,320 ftMay 2015Jan 2021Yes
42-103364791711C11,034 ftApr 2015Dec 2020Yes
42-103364731703C11,013 ftApr 2015Nov 2020Yes
42-103364801713C11,142 ftApr 2015Dec 2020Yes
42-103364741704C11,016 ftApr 2015Dec 2020Yes
42-103364821716C10,997 ftApr 2015Sep 2020Yes
42-103364711701C11,257 ftApr 2015Jan 2021Yes
42-103364811714C11,090 ftApr 2015Dec 2020Yes
42-103364721702C11,257 ftMar 2015Jan 2021Yes
42-103364771708C11,114 ftMar 2015——
42-103361652115C10,752 ftFeb 2014——
42-135426621513E11,215 ftDec 2013——
42-135426581509E11,173 ftNov 2013——
42-135426601505E11,195 ftNov 2013——
42-135426571501E11,225 ftNov 2013——
42-103361632103C10,655 ftOct 2013——
42-103361612114C10,650 ftOct 2013——
42-103361622106C10,560 ftOct 2013——
42-103361592102C10,335 ftSep 2013——

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 (154)

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

154 months

May 20268447,632106.413.05$113,056
Apr 20268867,49198.932.87$109,149
Mar 20261,0357,76689.753.15$117,350
Feb 20261,3356,75963.503.75$110,121
Jan 20261,3286,51659.138.00$130,639
Dec 20251,0807,08156.664.41$92,444
Nov 20251,5377,89958.593.93$121,068
Oct 20252,3549,70859.383.30$171,864
Sep 20251,5149,47762.743.08$124,148
Aug 20251,85811,31363.933.01$152,888
Jul 20251,53311,48366.743.32$140,381
Jun 20251,63311,68966.483.13$145,133
May 20252,07914,06860.553.23$171,356
Apr 20251,81314,20962.363.54$163,403
Mar 20251,91716,34767.704.27$199,555
Feb 20251,81012,95370.884.34$184,520
Jan 20252,25515,06774.324.28$232,058
Dec 20242,18616,42868.993.12$202,090
Nov 20242,14614,60269.052.20$180,283
Oct 20241,90614,72371.372.28$169,620
Sep 20241,34615,59569.612.36$130,567
Aug 20241,28414,05075.632.06$126,103
Jul 20241,14613,20079.932.15$119,935
Jun 20241,42817,27178.082.63$156,990
May 20241,71219,94978.812.20$178,779
Apr 20241,23216,08684.451.66$130,732
Mar 20241,20313,70980.301.55$117,783
Feb 20241,97310,74576.091.78$169,291
Jan 20242,6989,56173.023.30$228,537
Dec 20232,17011,41571.262.61$184,436
Nov 20232,10312,44977.892.81$198,754
Oct 20232,11313,19685.443.09$221,274
Sep 20232,48810,98389.042.74$251,570
Aug 20232,89115,51880.522.67$274,261
Jul 20232,40216,64674.852.64$223,765
Jun 20233,03418,11568.962.26$250,137
May 20233,79518,27270.622.23$308,702
Apr 20234,31021,16378.122.24$384,055
Mar 20233,31019,91572.852.39$288,793
Feb 20232,62717,82675.112.47$241,267
Jan 20233,45621,24276.533.39$336,450
Dec 20222,98721,58076.415.73$351,870
Nov 20223,26954,30185.005.65$584,459
Oct 20223,41633,75487.185.86$495,732
Sep 20222,73424,72184.888.16$433,876
Aug 20223,93247,70294.529.13$807,036
Jul 20224,19327,307101.587.54$631,877
Jun 20224,33822,414115.097.98$678,061
May 20224,16124,851109.378.43$664,658
Apr 20225,78828,567104.226.84$798,555
Mar 20225,29238,509108.885.08$771,680
Feb 20224,95544,62991.054.86$667,998
Jan 20225,58541,20281.844.54$644,038
Dec 20215,58435,95971.323.90$538,459
Nov 20214,04418,42877.435.24$409,632
Oct 20215,73322,94479.795.71$588,535
Sep 20216,21634,11469.865.35$616,791
Aug 20217,11435,21766.024.22$618,303
Jul 20217,39339,09370.783.98$678,948
Jun 20212,64522,65569.493.38$260,389
May 20214,61331,72563.483.02$388,569
Apr 20214,86326,89260.362.76$367,710
Mar 20214,68438,37461.302.72$391,389
Feb 20212,51616,45957.805.55$236,739
Jan 20214,93522,51050.412.81$312,033
Dec 20205,23723,15744.642.68$295,735
Nov 20205,66536,61038.772.71$318,720
Oct 20206,33742,50436.972.48$339,622
Sep 20206,61646,36737.091.99$337,706
Aug 20206,06637,54039.982.39$332,055
Jul 20205,35323,58838.371.83$248,446
Jun 20206,16725,88634.901.69$258,984
May 20205,46721,85616.921.81$132,165
Apr 20207,99644,39214.751.80$198,041
Mar 20208,13136,95530.341.86$315,292
Feb 20206,90536,95149.881.98$417,609
Jan 20208,22234,63157.252.09$543,252
Dec 20197,30540,29659.012.30$523,925
Nov 20197,76147,28055.302.75$559,236
Oct 20197,65452,82653.472.42$537,021
Sep 20199,29548,17355.052.66$639,699
Aug 20197,79337,06253.112.30$499,290
Jul 20199,72254,46956.272.46$681,054
Jun 201911,55048,09552.782.49$729,423
May 20196,06243,28758.482.74$473,126
Apr 20197,31052,21262.632.75$601,445
Mar 20198,63855,37256.803.06$660,193
Feb 20198,17152,38550.852.79$561,766
Jan 20198,51660,67346.033.23$587,855
Dec 201810,68271,53046.594.19$797,059
Nov 20187,92365,98052.934.24$698,937
Oct 201810,61578,79161.443.40$919,924
Sep 201811,35678,46459.543.11$920,002
Aug 201810,86584,17259.403.07$903,499
Jul 201811,59786,87565.142.93$1,010,136
Jun 201813,30089,61960.183.08$1,076,144
May 201813,632102,49765.382.90$1,188,583
Apr 201811,87980,65063.842.90$992,305
Mar 201812,93786,16361.222.79$1,032,126
Feb 201811,38172,77661.782.77$904,425
Jan 201813,14486,64962.874.01$1,173,767
Dec 201713,82983,48457.272.92$1,035,887
Nov 201714,23185,74255.423.12$1,056,056
Oct 201714,53189,97449.292.98$984,687
Sep 201713,73381,80547.523.09$905,147
Aug 201714,75291,79045.373.00$945,072
Jul 201714,89999,44743.873.09$960,640
Jun 201716,28289,24142.493.09$967,334
May 201718,08792,81145.373.26$1,123,487
Apr 201717,90387,81647.933.21$1,140,121
Mar 201718,12788,79946.772.98$1,112,748
Feb 201716,54679,11650.452.95$1,068,344
Jan 201718,50391,57949.413.42$1,227,324
Dec 201619,88690,48348.763.72$1,306,494
Nov 201619,12679,70842.492.64$1,023,440
Oct 201619,33690,01646.193.09$1,171,303
Sep 201619,14686,61641.553.10$1,064,080
Aug 201621,298104,01741.442.92$1,186,770
Jul 201622,101106,51041.622.92$1,231,315
Jun 201619,239101,51345.352.69$1,145,135
May 201622,661110,92342.521.99$1,184,398
Apr 201624,101110,30836.561.99$1,100,760
Mar 201626,851119,34733.011.79$1,100,461
Feb 201627,064109,73526.472.06$942,837
Jan 201631,447141,89027.352.36$1,195,554
Dec 201532,104149,49332.362.00$1,338,082
Nov 201537,315165,56338.792.17$1,806,279
Oct 201539,792200,43743.552.43$2,219,318
Sep 201544,953221,94442.992.76$2,544,744
Aug 201547,456243,04940.162.87$2,603,989
Jul 201552,371228,20748.152.95$3,193,752
Jun 201556,709213,84256.152.88$3,800,687
May 201557,554189,61055.212.96$3,737,939
Apr 201538,074149,48849.822.71$2,301,446
Mar 201532,162123,31842.892.93$1,741,331
Feb 201526,457114,78244.662.98$1,523,183
Jan 201531,998114,50343.433.10$1,744,705
Dec 201440,424118,63454.693.59$2,636,846
Nov 201447,134122,07170.464.25$3,840,088
Oct 201443,741121,94178.303.90$3,900,607
Sep 201453,419122,66486.164.05$5,098,811
Aug 201460,444112,24489.394.04$5,856,007
Jul 201459,790106,81796.564.18$6,219,775
Jun 201468,383105,06498.164.74$7,210,151
May 201471,48899,77494.734.73$7,243,646
Apr 201475,804100,91295.944.81$7,757,934
Mar 201494,640103,62995.895.06$9,599,061
Feb 201477,67324,12697.406.19$7,714,738
Jan 201466,75830,71890.404.86$6,184,235
Dec 201346,16438,23691.824.35$4,405,276
Nov 201333,18823,95888.853.74$3,038,316
Oct 201317,46312,29997.423.78$1,747,728
Sep 201300104.113.72$0
Aug 201300104.253.52$0

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                  844 bbl  × $106.41 =    $89,810
Casinghead gas     7,632 Mcf  × $  3.05 =    $23,246

────────────────────────────────────────────────────
Month total                                 $113,056

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/44507 is the state's own key, not one this site invented.