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TUNNELL "8"

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 38394District 08Field 85280300OilCasinghead gasSaveExport
Value, all time
$12.4 M
Sep 2007 – May 2026
Value, last 12 filed months
$1 k
at the published price for each month
Months reported
225
no gaps in the span
Streams
2
oil, casinghead gas

The SPRABERRY (TREND AREA) 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 16,587 leases and 43,997 wells, and the rule below applies to all of them.

Discovered
1952-12-22
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 2018-02-13.

The Commission's schedule remark for this field reads: “SPRABERRY (TREND AREA) FIELD EFFECTIVE 10/1/2019.”

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
OilDisposition158,358 bbl$11,346,322
Casinghead gasProduction243,979 Mcf$1,061,754
Total$12,408,076

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 32.2713, -101.7907. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.8 miles.

32.27126, -101.79068 · 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
100.0%
2 of 2 wells
With a plug date
100.0%
2 of 2 wells
Median depth
10,979 ft
2 wells filed one
Completion to plug
16.9 years
median over 2 wells

What the state filed about each well

On the RRC proration schedule
2100.0%
A plug date is filed
2100.0%
BothOn the schedule and plugged. Neither fact cancels the other.
2100.0%
NeitherNo plug date, and not on the schedule.
00.0%

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 10,945 and 11,012 ft, median 10,979 ft, over the 2 wells that filed a depth.

Completions filed
Aug 2007 – Mar 2008
2 of 2 wells
Plug dates filed
Sep 2023 – Nov 2025
2 of 2 wells

Last completion to plug: a median of 16.9 years across the 2 wells that filed both dates, with the middle half between 16.5 years and 17.3 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

2 wells

42-31735102211,012 ftMar 2008Nov 2025Yes
42-31734873110,945 ftAug 2007Sep 2023Yes

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 (225)

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

225 months

May 202600106.413.05$0
Apr 20260098.932.87$0
Mar 20260089.753.15$0
Feb 202620063.503.75$1,270
Jan 20260059.138.00$0
Dec 20250056.664.41$0
Nov 20250058.593.93$0
Oct 20250059.383.30$0
Sep 20250062.743.08$0
Aug 20250063.933.01$0
Jul 20250066.743.32$0
Jun 20250066.483.13$0
May 20250060.553.23$0
Apr 20250062.363.54$0
Mar 20250067.704.27$0
Feb 20250070.884.34$0
Jan 202579074.324.28$5,871
Dec 20240068.993.12$0
Nov 20240069.052.20$0
Oct 20240071.372.28$0
Sep 20240069.612.36$0
Aug 20240075.632.06$0
Jul 20240079.932.15$0
Jun 20240078.082.63$0
May 20240078.812.20$0
Apr 20240084.451.66$0
Mar 20240080.301.55$0
Feb 20240076.091.78$0
Jan 20240073.023.30$0
Dec 20230071.262.61$0
Nov 20230077.892.81$0
Oct 20230085.443.09$0
Sep 20230089.042.74$0
Aug 20230080.522.67$0
Jul 20230074.852.64$0
Jun 20230068.962.26$0
May 20230070.622.23$0
Apr 20230078.122.24$0
Mar 20230072.852.39$0
Feb 202316075.112.47$1,202
Jan 20238376.533.39$622
Dec 20225476.415.73$405
Nov 20223085.005.65$255
Oct 202211087.185.86$146
Sep 2022145184.888.16$12,316
Aug 20220094.529.13$0
Jul 2022340112101.587.54$35,382
Jun 202218134115.097.98$21,103
May 2022562109.378.43$1,070
Apr 2022163257104.226.84$18,745
Mar 2022352207108.885.08$39,377
Feb 202236617991.054.86$34,194
Jan 202217016981.844.54$14,680
Dec 202136018371.323.90$26,389
Nov 202135314677.435.24$28,097
Oct 202134018079.795.71$28,157
Sep 202133813569.865.35$24,335
Aug 202136428766.024.22$25,243
Jul 202134430270.783.98$25,551
Jun 202117224069.493.38$12,764
May 202119163.483.02$338
Apr 202134631760.362.76$21,759
Mar 202151656661.302.72$33,169
Feb 202134525057.805.55$21,328
Jan 202152856350.412.81$28,199
Dec 202036337544.642.68$17,208
Nov 202017133438.772.71$7,534
Oct 202034947636.972.48$14,082
Sep 202034158637.091.99$13,814
Aug 202052163439.982.39$22,342
Jul 202070396938.371.83$28,743
Jun 20208991,12234.901.69$33,272
May 202053779616.921.81$10,531
Apr 202086990014.751.80$14,442
Mar 202054283930.341.86$18,002
Feb 202071674949.881.98$37,198
Jan 20201,07560157.252.09$62,803
Dec 201970582059.012.30$43,492
Nov 201951948655.302.75$30,038
Oct 201935836353.472.42$20,020
Sep 201933836555.052.66$19,577
Aug 201951244853.112.30$28,225
Jul 201931740556.272.46$18,834
Jun 201933037752.782.49$18,357
May 201946561058.482.74$28,865
Apr 201965379862.632.75$43,092
Mar 201982589256.803.06$49,591
Feb 201969088050.852.79$37,544
Jan 201950763346.033.23$25,381
Dec 201850651746.594.19$25,738
Nov 201865166752.934.24$37,284
Oct 201866198061.443.40$43,942
Sep 201867292259.543.11$42,876
Aug 201865684059.403.07$41,542
Jul 201882287565.142.93$56,110
Jun 201865360860.183.08$41,168
May 20188171,03465.382.90$56,415
Apr 201867682463.842.90$45,546
Mar 201873419061.222.79$45,465
Feb 201885255761.782.77$54,177
Jan 201879689262.874.01$53,621
Dec 201768161057.272.92$40,783
Nov 201781281655.423.12$47,546
Oct 201783298749.292.98$43,954
Sep 201766585447.523.09$34,237
Aug 20171,0531,05245.373.00$50,935
Jul 201731971243.873.09$16,193
Jun 201734246342.493.09$15,961
May 201749655145.373.26$24,302
Apr 201731449747.933.21$16,646
Mar 201768171246.772.98$33,975
Feb 201753167750.452.95$28,788
Jan 201754364849.413.42$29,045
Dec 201635562848.763.72$19,648
Nov 201665254442.492.64$29,142
Oct 201616947846.193.09$9,283
Sep 201645672241.553.10$21,185
Aug 20169231,39241.442.92$42,320
Jul 20168641,39441.622.92$40,036
Jun 20168381,29445.352.69$41,479
May 20163541,07642.521.99$17,194
Apr 20165151,43836.561.99$21,692
Mar 20166921,43333.011.79$25,414
Feb 20166991,45226.472.06$21,499
Jan 20168721,55027.352.36$27,514
Dec 20156921,49632.362.00$25,387
Nov 201552969538.792.17$22,026
Oct 20156898843.552.43$30,219
Sep 20156741,46442.992.76$33,014
Aug 20156761,51540.162.87$31,500
Jul 20156951,70048.152.95$38,471
Jun 20158641,59456.152.88$53,109
May 20155181,64555.212.96$33,461
Apr 20157181,52349.822.71$39,893
Mar 20158911,60342.892.93$42,919
Feb 20157201,41944.662.98$36,378
Jan 20155211,33543.433.10$26,766
Dec 20148721,54554.693.59$53,238
Nov 20145361,53570.464.25$44,293
Oct 20149021,70478.303.90$77,274
Sep 201471292186.164.05$65,072
Aug 20147151,57089.394.04$70,249
Jul 20148591,70296.564.18$90,059
Jun 20146981,30898.164.74$74,712
May 20147341,26694.734.73$75,516
Apr 20148521,60795.944.81$89,469
Mar 20146851,71795.895.06$74,367
Feb 20148781,27997.406.19$93,437
Jan 20146741,33490.404.86$67,414
Dec 20133331,08091.824.35$35,279
Nov 20136931,66788.853.74$67,805
Oct 20138811,84497.423.78$92,796
Sep 20138682,134104.113.72$98,301
Aug 2013844985104.253.52$91,457
Jul 20131,2021,976102.523.72$130,575
Jun 201351952194.403.93$51,043
May 20136951,42794.834.15$71,828
Apr 20138201,59493.964.28$83,874
Mar 201386897593.623.91$85,077
Feb 20138921,70191.233.42$87,194
Jan 20131,4011,88391.603.42$134,771
Dec 20127161,50186.773.42$67,261
Nov 201251298586.953.62$48,089
Oct 20128651,69389.383.40$83,069
Sep 20121,0381,95194.672.92$103,961
Aug 20127181,71092.662.91$71,503
Jul 20121,0291,90885.133.02$93,362
Jun 20121,0271,86979.822.52$86,683
May 20128511,57991.612.49$81,889
Apr 20126731,450101.652.00$71,306
Mar 20121,2011,853105.052.22$130,283
Feb 20121,0491,274101.102.57$109,328
Jan 20125101,42598.092.73$53,922
Dec 20111,0302,28596.873.24$107,179
Nov 20111,1901,46195.723.31$118,745
Oct 20111,003084.983.65$85,235
Sep 20111,011083.623.99$84,540
Aug 20111,5063,29883.404.15$139,285
Jul 20111,1763,07894.144.52$124,613
Jun 20111,4022,67792.904.64$142,667
May 20111,3612,46298.134.40$144,400
Apr 20118411,938105.964.33$97,510
Mar 20118511,97296.364.06$90,003
Feb 20116862,24385.644.18$68,125
Jan 20111,5293,20686.504.59$146,970
Dec 20101,5253,50085.734.35$145,955
Nov 20101,5013,22980.843.80$133,596
Oct 20101,1182,28378.103.51$95,327
Sep 20101,5082,30772.633.98$118,707
Aug 20101,3152,18473.684.42$106,541
Jul 20101,5182,28872.554.74$120,968
Jun 20101,0142,08570.364.91$81,583
May 20101,3391,81671.124.24$102,921
Apr 20106771,27881.694.12$60,573
Mar 20101,5422,29278.394.39$130,936
Feb 20101,1992,06073.585.44$99,434
Jan 20101,6812,54474.365.96$140,172
Dec 20091,7202,70471.445.48$137,705
Nov 20091,3002,82674.593.75$107,569
Oct 20091,6194,25572.544.11$134,931
Sep 20091,8593,96465.543.06$133,988
Aug 20091,9943,01267.423.22$144,130
Jul 20091,5292,21661.133.46$101,145
Jun 20091,5162,14066.163.90$108,634
May 20091,8832,76354.743.93$113,922
Apr 20092,0772,72246.773.59$106,906
Mar 20093,2634,94442.144.06$157,571
Feb 20091,7511,94532.814.63$66,462
Jan 20092,9924,16235.865.37$129,647
Dec 20082,9513,23637.105.98$128,824
Nov 20082,5742,69955.496.86$161,347
Oct 20081,5472,25475.246.92$131,998
Sep 20081,3971,640101.767.88$155,077
Aug 20081,8862,642114.228.48$237,831
Jul 20081,3702,081131.0811.39$203,281
Jun 20081,1502,191131.3313.03$179,584
May 20082,0463,667123.1711.57$294,449
Apr 20082,6034,504110.3110.45$334,226
Mar 20081,1391,252101.909.66$128,164
Feb 20081,2951,23792.538.77$130,676
Jan 20081,4281,22790.388.21$139,131
Dec 20071,8501,95588.337.30$177,686
Nov 20071,3751,42191.677.29$136,408
Oct 200735027982.856.92$30,929
Sep 200754236375.846.24$43,372

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.

Feb 2026 — as filed, then multipliedworked
Oil                   20 bbl  × $ 63.50 =     $1,270
Casinghead gas         0 Mcf  × $  3.75 =         $0

────────────────────────────────────────────────────
Month total                                   $1,270

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/38394 is the state's own key, not one this site invented.