WELCH "12"

Operated by DIAMONDBACK E&P LLC (P-5 217012) 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 15517District 7CField 85279200OilCasinghead gasSaveExport
Value, all time
$9.5 M
Jan 2004 – May 2026
Value, last 12 filed months
$57 k
at the published price for each month
Months reported
269
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
OilDisposition127,899 bbl$8,212,339
Casinghead gasProduction220,481 Mcf$1,246,801
Total$9,459,139

Wells on this lease (4)

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 31.4435, -101.7851. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.5 miles.

31.44351, -101.78508 · 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
75.0%
3 of 4 wells
With a plug date
75.0%
3 of 4 wells
Median depth
9,200 ft
4 wells filed one
Completion to plug
20.7 years
median over 3 wells

What the state filed about each well

On the RRC proration schedule
375.0%
A plug date is filed
375.0%
BothOn the schedule and plugged. Neither fact cancels the other.
375.0%
NeitherNo plug date, and not on the schedule.
125.0%

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 9,170 and 9,200 ft, median 9,200 ft, over the 4 wells that filed a depth.

Completions filed
Jan 2004 – Jul 2005
4 of 4 wells
Plug dates filed
Jun 2024 – Jun 2026
3 of 4 wells; 1 filed none

Last completion to plug: a median of 20.7 years across the 3 wells that filed both dates, with the middle half between 20.1 years and 20.8 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

4 wells

42-4610084429,200 ftJul 2005Jun 2026Yes
42-4610084869,170 ftDec 2004Jun 2024Yes
42-4610084759,200 ftJun 2004Feb 2025Yes
42-4610084319,200 ftJan 2004

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 (269)

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

269 months

May 20261260106.413.05$13,408
Apr 202608298.932.87$235
Mar 202612412989.753.15$11,535
Feb 2026418763.503.75$955
Jan 20261234259.138.00$7,609
Dec 202504656.664.41$203
Nov 20251412458.593.93$8,355
Oct 20252059.383.30$119
Sep 2025122062.743.08$7,654
Aug 202508663.933.01$259
Jul 20258513066.743.32$6,104
Jun 2025212666.483.13$527
May 202511712260.553.23$7,479
Apr 202526062.363.54$337
Mar 2025786467.704.27$5,554
Feb 20252870.884.34$176
Jan 202509974.324.28$424
Dec 20249714168.993.12$7,132
Nov 2024011969.052.20$262
Oct 20249518471.372.28$7,200
Sep 202405169.612.36$121
Aug 2024139775.632.06$10,527
Jul 202401479.932.15$30
Jun 202425978.082.63$312
May 2024791678.812.20$6,261
Apr 20242084.451.66$169
Mar 20240080.301.55$0
Feb 20249120576.091.78$7,290
Jan 2024117273.023.30$640
Dec 20239618171.262.61$7,314
Nov 2023107077.892.81$8,334
Oct 2023214585.443.09$619
Sep 20237613489.042.74$7,134
Aug 2023108080.522.67$8,696
Jul 2023022274.852.64$586
Jun 2023101968.962.26$6,985
May 2023674870.622.23$4,838
Apr 20236218278.122.24$5,251
Mar 20237221272.852.39$5,753
Feb 202316515375.112.47$12,770
Jan 20238559076.533.39$8,504
Dec 20229044576.415.73$9,426
Nov 202213619585.005.65$12,661
Oct 202220525387.185.86$19,355
Sep 20227223284.888.16$8,005
Aug 202210171994.529.13$16,109
Jul 202257625101.587.54$10,504
Jun 202250252115.097.98$7,765
May 20221230109.378.43$13,453
Apr 202280598104.226.84$12,426
Mar 2022155241108.885.08$18,100
Feb 20226162391.054.86$8,581
Jan 202215950681.844.54$15,309
Dec 202120055271.323.90$16,416
Nov 202121129477.435.24$17,877
Oct 202127329079.795.71$23,440
Sep 202114156669.865.35$12,879
Aug 202123732266.024.22$17,006
Jul 20219632070.783.98$8,069
Jun 202117224569.493.38$12,781
May 202118112163.483.02$11,855
Apr 202116546460.362.76$11,239
Mar 202119850961.302.72$13,520
Feb 202115340657.805.55$11,096
Jan 20217539650.412.81$4,894
Dec 202013838244.642.68$7,182
Nov 202016057838.772.71$7,768
Oct 20207625336.972.48$3,437
Sep 202022152837.091.99$9,248
Aug 202015031739.982.39$6,753
Jul 202025414538.371.83$10,011
Jun 202022432034.901.69$8,359
May 202015147116.921.81$3,410
Apr 202016042714.751.80$3,130
Mar 202027946930.341.86$9,335
Feb 202029995949.881.98$16,814
Jan 202023328257.252.09$13,930
Dec 201927937259.012.30$17,321
Nov 20192291,14055.302.75$15,800
Oct 20192171,32053.472.42$14,795
Sep 201910726855.052.66$6,603
Aug 20193838553.112.30$20,537
Jul 20191807956.272.46$10,323
Jun 20193188352.782.49$16,991
May 201935624858.482.74$21,498
Apr 201925913562.632.75$16,593
Mar 201932116056.803.06$18,723
Feb 201935019450.852.79$18,339
Jan 201959818946.033.23$28,136
Dec 201837761146.594.19$20,122
Nov 201848956652.934.24$28,281
Oct 201868061761.443.40$43,876
Sep 201825011659.543.11$15,246
Aug 201813521859.403.07$8,688
Jul 201828661065.142.93$20,418
Jun 201827230060.183.08$17,292
May 201831144165.382.90$21,612
Apr 201822682763.842.90$16,827
Mar 201821033161.222.79$13,779
Feb 201829468461.782.77$20,055
Jan 20185223762.874.01$32,966
Dec 201775057.272.92$4,295
Nov 20171761055.423.12$9,785
Oct 20173830149.292.98$2,771
Sep 201738453447.523.09$19,896
Aug 201736815745.373.00$17,168
Jul 201749548143.873.09$23,201
Jun 201760938342.493.09$27,059
May 201769453045.373.26$33,216
Apr 201734255647.933.21$18,178
Mar 201770373146.772.98$35,060
Feb 201735169950.452.95$19,772
Jan 201787868449.413.42$45,720
Dec 201653958548.763.72$28,460
Nov 201669463642.492.64$31,170
Oct 201666997346.193.09$33,908
Sep 201634452941.553.10$15,933
Aug 201634757241.442.92$16,052
Jul 201669675341.622.92$31,170
Jun 201666358245.352.69$31,630
May 201634760942.521.99$15,967
Apr 201635235836.561.99$13,582
Mar 20161,0801,01133.011.79$37,465
Feb 201671498326.472.06$20,928
Jan 201671179527.352.36$21,326
Dec 20156901,05132.362.00$24,432
Nov 201570385838.792.17$29,129
Oct 201517912043.552.43$8,087
Sep 201553280042.992.76$25,077
Aug 201551077340.162.87$22,702
Jul 201555291648.152.95$29,276
Jun 201535558956.152.88$21,631
May 201517639755.212.96$10,890
Apr 201517142249.822.71$9,661
Mar 201532740842.892.93$15,222
Feb 201534845244.662.98$16,887
Jan 201535936943.433.10$16,736
Dec 201451174654.693.59$30,626
Nov 201431035770.464.25$23,361
Oct 201452064578.303.90$43,232
Sep 201434854886.164.05$32,201
Aug 201435175589.394.04$34,422
Jul 201451462396.564.18$52,236
Jun 201417245998.164.74$19,058
May 201452172094.734.73$52,757
Apr 201417462795.944.81$19,709
Mar 201436068895.895.06$37,999
Feb 201469775797.406.19$72,575
Jan 2014353090.404.86$31,911
Dec 2013035891.824.35$1,559
Nov 201351957588.853.74$48,263
Oct 201317174897.423.78$19,486
Sep 2013511702104.113.72$55,810
Aug 2013315897104.253.52$35,999
Jul 2013176462102.523.72$19,761
Jun 201335485094.403.93$36,761
May 201367176794.834.15$66,813
Apr 201318277393.964.28$20,411
Mar 201335185193.623.91$36,190
Feb 201352775991.233.42$50,674
Jan 201334991891.603.42$35,108
Dec 201252972586.773.42$48,381
Nov 20123411,14486.953.62$33,797
Oct 201252169689.383.40$48,933
Sep 201236055394.672.92$35,695
Aug 201234254092.662.91$33,260
Jul 201251342985.133.02$44,968
Jun 201234850779.822.52$29,055
May 201248955891.612.49$46,186
Apr 2012342727101.652.00$36,216
Mar 2012683928105.052.22$73,811
Feb 20125171,049101.102.57$54,965
Jan 201216999198.092.73$19,287
Dec 201151098496.873.24$52,592
Nov 201101,06195.723.31$3,513
Oct 20113421,09784.983.65$33,066
Sep 20115261,04183.623.99$48,133
Aug 20118281,17083.404.15$73,910
Jul 20113541,21394.144.52$38,805
Jun 20113261,09592.904.64$35,366
May 20115071,22098.134.40$55,126
Apr 20115051,203105.964.33$58,723
Mar 20115201,17496.364.06$54,871
Feb 201151488785.644.18$47,727
Jan 20116891,14786.504.59$64,862
Dec 20105131,13885.734.35$48,927
Nov 20106811,17180.843.80$59,496
Oct 20105221,35778.103.51$45,530
Sep 201050994372.633.98$40,721
Aug 20106981,25373.684.42$56,966
Jul 201033883172.554.74$28,458
Jun 20105281,00470.364.91$42,080
May 20105191,27771.124.24$42,320
Apr 20105161,16381.694.12$46,947
Mar 20108801,23578.394.39$74,403
Feb 20103371,03973.585.44$30,451
Jan 20107001,15674.365.96$58,946
Dec 20096701,12371.445.48$54,023
Nov 20096971,17674.593.75$56,401
Oct 20097011,33372.544.11$56,330
Sep 20095241,35465.543.06$38,493
Aug 20096921,28767.423.22$50,797
Jul 20096711,10161.133.46$44,833
Jun 20095211,34466.163.90$39,704
May 20095211,30454.743.93$33,639
Apr 20098421,20746.773.59$43,710
Mar 20096801,33442.144.06$34,070
Feb 20098691,27532.814.63$34,419
Jan 20095261,44135.865.37$26,602
Dec 20088731,24237.105.98$39,812
Nov 20088571,39555.496.86$57,125
Oct 20086991,46075.246.92$62,699
Sep 2008521907101.767.88$60,161
Aug 20086791,445114.228.48$89,813
Jul 20086911,527131.0811.39$107,968
Jun 20088521,448131.3313.03$130,764
May 20088711,537123.1711.57$125,071
Apr 20087031,367110.3110.45$91,840
Mar 20087941,539101.909.66$95,782
Feb 20086971,46792.538.77$77,360
Jan 20081,0331,50490.388.21$105,704
Dec 20078721,54688.337.30$88,313
Nov 20076921,56691.677.29$74,854
Oct 20071,0301,58982.856.92$96,335
Sep 20078461,79575.846.24$75,369
Aug 20071,0501,93769.066.39$84,886
Jul 20071,0231,99470.906.39$85,268
Jun 20078721,88962.007.55$68,323
May 20071,0041,84558.747.85$73,451
Apr 20071,0432,05259.617.81$78,190
Mar 20071,0522,12056.927.30$75,360
Feb 20078791,84155.108.22$63,559
Jan 20071,2321,87650.306.73$74,589
Dec 20061,2911,90956.656.92$86,342
Nov 20061,0191,83954.207.62$69,238
Oct 20069621,95754.906.01$64,583
Sep 20061,2341,84860.085.04$83,447
Aug 20061,1762,01468.717.34$95,586
Jul 20061,0372,20969.376.34$85,948
Jun 20068421,85866.286.38$67,669
May 20061,2521,90966.016.42$94,910
Apr 20068791,68764.397.36$69,016
Mar 20061,0461,74556.707.08$71,668
Feb 20061,2121,81357.597.75$83,852
Jan 20061,2271,92660.598.93$91,550
Dec 20051,4501,82754.9413.42$104,173
Nov 20051,4032,43154.6910.59$102,470
Oct 20051,6162,57958.3413.80$129,857
Sep 20051,7673,27661.4512.08$148,153
Aug 20051,2092,69461.519.80$100,758
Jul 20051,2242,18455.697.84$85,295
Jun 20051,2732,13752.337.38$82,389
May 20051,7631,39945.226.65$89,028
Apr 20055352,08149.207.36$41,639
Mar 20051,6432,60650.377.15$101,404
Feb 20051,2642,48245.226.31$72,824
Jan 20051,7962,92643.166.32$96,014
Dec 20041,0651,56239.866.75$52,996
Nov 20041,4291,87445.286.33$76,568
Oct 200438789149.706.52$25,039
Sep 20048961,75443.245.28$48,011
Aug 20041,3861,89042.375.55$69,216
Jul 20048851,08938.286.08$40,503
Jun 200470979236.106.43$30,690
May 20047241,77437.486.49$38,657
Apr 20048951,82034.475.86$41,513
Mar 20041,2201,64934.365.53$51,038
Feb 20040032.455.51$0
Jan 20040032.036.30$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                  126 bbl  × $106.41 =    $13,408
Casinghead gas         0 Mcf  × $  3.05 =         $0

────────────────────────────────────────────────────
Month total                                  $13,408

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/15517 is the state's own key, not one this site invented.