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MAYOR PIKE UNIT

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 44459District 08Field 79820800OilCasinghead gasSaveExport
Value, all time
$40.8 M
Jun 2013 – May 2026
Value, last 12 filed months
$1.3 M
at the published price for each month
Months reported
156
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
OilDisposition547,015 bbl$33,653,089
Casinghead gasProduction2,230,298 Mcf$7,133,775
Total$40,786,864

Wells on this lease (2)

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 31.7920, -102.3669. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.3 miles.

31.79199, -102.36687 · 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 2 wells
With a plug date
0.0%
0 of 2 wells
Median depth
10,168 ft
2 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.
2100.0%

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 10,166 and 10,170 ft, median 10,168 ft, over the 2 wells that filed a depth.

Completions filed
Jun 2013
2 of 2 wells

2 wells

42-13542131210,166 ftJun 2013——
42-13541999110,170 ftJun 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 (156)

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

156 months

May 20269659,333106.413.05$131,112
Apr 20261,0609,17498.932.87$131,193
Mar 20261,07210,19189.753.15$128,308
Feb 20268849,16163.503.75$90,491
Jan 20261,5358,64459.138.00$159,899
Dec 20258174,63756.664.41$66,756
Nov 20251,1295,70658.593.93$88,552
Oct 20251,2239,42659.383.30$103,773
Sep 20251,04110,57562.743.08$97,851
Aug 20251,13210,86163.933.01$105,112
Jul 20251,11211,63966.743.32$112,800
Jun 20251,13810,71766.483.13$109,185
May 202584811,28660.553.23$87,826
Apr 20258319,93362.363.54$87,015
Mar 202597510,30667.704.27$109,997
Feb 20258239,39170.884.34$99,099
Jan 20251,20410,91374.324.28$136,175
Dec 20241,29013,41868.993.12$130,880
Nov 20241,05812,00869.052.20$99,454
Oct 20241,4629,30071.372.28$125,560
Sep 20241,1388,83469.612.36$100,103
Aug 20241,2088,59475.632.06$109,096
Jul 20241,2028,65379.932.15$114,650
Jun 20241,31116,09078.082.63$144,744
May 20241,50912,69478.812.20$146,831
Apr 20241,53012,52884.451.66$149,995
Mar 20241,41112,64480.301.55$132,840
Feb 20241,27611,99576.091.78$118,486
Jan 20241,80814,65973.023.30$180,361
Dec 20231,44812,81771.262.61$136,646
Nov 20231,61612,71977.892.81$161,580
Oct 20231,88617,95385.443.09$216,566
Sep 20231,1869,01289.042.74$130,250
Aug 20231,38411,26480.522.67$141,547
Jul 20231,73512,61474.852.64$163,188
Jun 20231,90415,61068.962.26$166,555
May 20231,44711,27670.622.23$127,303
Apr 20231,16010,70678.122.24$114,577
Mar 20231,47511,09672.852.39$134,008
Feb 20231,48110,73175.112.47$137,697
Jan 20231,35714,11076.533.39$151,652
Dec 20221,43514,72376.415.73$193,998
Nov 20221,39517,95985.005.65$219,975
Oct 20221,33220,17687.185.86$234,431
Sep 20221,37417,07684.888.16$256,028
Aug 20221,63010,26294.529.13$247,731
Jul 20221,37211,072101.587.54$222,874
Jun 20221,4578,793115.097.98$237,830
May 20221,9499,291109.378.43$291,514
Apr 20222,02914,979104.226.84$313,883
Mar 20221,91513,746108.885.08$278,285
Feb 20221,65710,80591.054.86$203,370
Jan 20221,4118,60281.844.54$154,509
Dec 20211,8257,70071.323.90$160,182
Nov 20212,31812,22377.435.24$243,493
Oct 20212,55811,02079.795.71$267,070
Sep 20212,0997,08169.865.35$184,526
Aug 20211,5229,19166.024.22$139,274
Jul 20211,80211,72570.783.98$174,235
Jun 20212,6188,57769.493.38$210,920
May 20211,8268,04763.483.02$140,198
Apr 20212,25413,11460.362.76$172,225
Mar 20212,77616,03861.302.72$213,743
Feb 20219718,27357.805.55$102,022
Jan 20212,33415,23850.412.81$160,480
Dec 20202,16013,75544.642.68$133,223
Nov 20201,94714,63538.772.71$115,096
Oct 20202,04617,96936.972.48$120,176
Sep 20201,91915,62837.091.99$102,292
Aug 20201,87217,35139.982.39$116,226
Jul 20201,92920,60138.371.83$111,615
Jun 20202,97225,41234.901.69$146,677
May 20201,38819,04216.921.81$58,041
Apr 20202,62317,76814.751.80$70,749
Mar 20202,50215,21230.341.86$104,148
Feb 20202,26212,28849.881.98$137,167
Jan 20202,40715,25057.252.09$169,746
Dec 20192,13515,17459.012.30$160,953
Nov 20192,31714,69755.302.75$168,557
Oct 20192,24112,37853.472.42$149,763
Sep 20192,59512,58755.052.66$176,302
Aug 20192,75518,92653.112.30$189,930
Jul 20197,11017,66556.272.46$443,537
Jun 20192,55114,10252.782.49$169,773
May 20192,88418,60858.482.74$219,648
Apr 20192,63816,18662.632.75$209,741
Mar 20193,26417,82956.803.06$239,989
Feb 20192,85917,20650.852.79$193,423
Jan 20193,12718,16146.033.23$202,563
Dec 201810417,83846.594.19$79,505
Nov 20183,44116,77052.934.24$253,191
Oct 20183,19114,89361.443.40$246,663
Sep 20183,05315,45759.543.11$229,816
Aug 20183,29318,49659.403.07$252,323
Jul 20183,27719,06665.142.93$269,363
Jun 20183,49316,71460.183.08$261,636
May 20183,37716,91665.382.90$269,858
Apr 20183,44523,50963.842.90$288,124
Mar 20183,39419,12561.222.79$261,079
Feb 20183,34719,22461.782.77$259,954
Jan 20184,33812,71962.874.01$323,725
Dec 20173,5938,62357.272.92$230,963
Nov 20173,67410,23955.423.12$235,542
Oct 20174,02713,47749.292.98$238,702
Sep 20173,59017,04747.523.09$223,226
Aug 20173,74419,10745.373.00$227,270
Jul 20173,81615,69643.873.09$215,866
Jun 20174,33220,31442.493.09$246,782
May 20173,85420,92445.373.26$243,139
Apr 20173,82016,68247.933.21$236,669
Mar 20174,37221,47146.772.98$268,541
Feb 20174,82018,96850.452.95$299,174
Jan 20174,65720,64449.413.42$300,680
Dec 20165,21019,70248.763.72$327,387
Nov 20165,32423,42742.492.64$288,166
Oct 20164,70522,64246.193.09$287,294
Sep 20164,56422,64241.553.10$259,839
Aug 20165,53622,64241.442.92$295,625
Jul 20165,72222,51641.622.92$303,994
Jun 20165,98522,76045.352.69$332,549
May 20167,26925,64942.521.99$360,146
Apr 20165,69423,16736.561.99$254,299
Mar 20166,79324,94033.011.79$268,980
Feb 20166,69524,23826.472.06$227,235
Jan 20167,39425,10927.352.36$261,593
Dec 20157,72925,90432.362.00$301,955
Nov 20157,47625,84438.792.17$346,007
Oct 20157,52027,49943.552.43$394,225
Sep 20158,24926,77942.992.76$428,492
Aug 20158,26121,55140.162.87$393,667
Jul 20158,22818,34948.152.95$450,217
Jun 20157,72317,15356.152.88$483,096
May 201510,47520,12555.212.96$637,803
Apr 201511,30918,74549.822.71$614,149
Mar 20156,17013,40342.892.93$303,965
Feb 20158,45017,02844.662.98$428,056
Jan 201511,56420,09443.433.10$564,529
Dec 201411,87717,70354.693.59$713,131
Nov 201410,17512,87570.464.25$771,673
Oct 201411,48714,41578.303.90$955,664
Sep 20147,83910,88286.164.05$719,431
Aug 201410,11414,88889.394.04$964,165
Jul 201412,71419,02196.564.18$1,307,164
Jun 20143,7865,35398.164.74$396,990
May 20143,9615,14194.734.73$399,525
Apr 20143,3594,56895.944.81$344,231
Mar 20144,4085,27695.895.06$449,363
Feb 20144,4375,07397.406.19$463,576
Jan 20146,4405,73990.404.86$610,072
Dec 20135,5683,81391.824.35$527,857
Nov 20136,6675,95088.853.74$614,606
Oct 20137,4605,83497.423.78$748,802
Sep 20137,3244,622104.113.72$779,685
Aug 20135,0002,701104.253.52$530,765
Jul 20134,5532,544102.523.72$476,231
Jun 20131,31671494.403.93$127,039

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                  965 bbl  × $106.41 =   $102,686
Casinghead gas     9,333 Mcf  × $  3.05 =    $28,427

────────────────────────────────────────────────────
Month total                                 $131,112

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/44459 is the state's own key, not one this site invented.