MISSOULA UNIT

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 51858District 08Field 85280300OilCasinghead gasSaveExport
Value, all time
$221.9 M
Jul 2018 – May 2026
Value, last 12 filed months
$14.8 M
at the published price for each month
Months reported
95
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 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
OilDisposition2,696,143 bbl$196,141,663
Casinghead gasProduction7,240,176 Mcf$25,802,919
Total$221,944,582

Wells on this lease (7)

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 32.0258, -102.1321. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.2 miles.

32.02582, -102.13213 · 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 7 wells
With a plug date
0.0%
0 of 7 wells
Median depth
9,062 ft
7 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.
7100.0%

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 8,414 and 9,739 ft, median 9,062 ft, over the 7 wells that filed a depth.

Completions filed
Jul 2018 – Apr 2022
7 of 7 wells

7 wells

42-32944530806WA9,453 ftApr 2022
42-32944286816MS8,591 ftApr 2022
42-32944291806LS9,062 ftApr 2022
42-32944287805LS9,056 ftApr 2022
42-32944292817MS8,414 ftApr 2022
42-32941761805WA9,412 ftJul 2018
42-32941762806WB9,739 ftJul 2018

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 (95)

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

95 months

May 202613,60292,797106.413.05$1,730,034
Apr 202611,02684,62198.932.87$1,333,641
Mar 202610,79185,01889.753.15$1,236,251
Feb 202612,33289,40763.503.75$1,118,387
Jan 202612,28182,19559.138.00$1,383,565
Dec 202511,28371,48056.664.41$954,762
Nov 202513,99197,17958.593.93$1,201,300
Oct 202514,542104,52159.383.30$1,208,929
Sep 202515,902110,35062.743.08$1,337,230
Aug 202511,62289,89163.933.01$1,013,994
Jul 202511,94782,44866.743.32$1,070,674
Jun 202512,526107,99766.483.13$1,170,621
May 202512,550104,35860.553.23$1,097,221
Apr 202514,924115,09362.363.54$1,338,449
Mar 202519,324122,17467.704.27$1,829,713
Feb 202517,959117,07970.884.34$1,781,155
Jan 202519,184123,62374.324.28$1,954,698
Dec 202417,865117,59768.993.12$1,599,570
Nov 202417,943104,52969.052.20$1,468,765
Oct 202420,614124,82371.372.28$1,755,992
Sep 202421,114121,10169.612.36$1,756,072
Aug 202420,792121,44275.632.06$1,823,110
Jul 202425,036129,98279.932.15$2,280,146
Jun 202425,822120,63278.082.63$2,333,924
May 202425,450126,25478.812.20$2,283,276
Apr 202425,732126,28584.451.66$2,382,599
Mar 202430,678116,98880.301.55$2,644,205
Feb 202427,293108,56776.091.78$2,270,369
Jan 202432,115127,17273.023.30$2,764,407
Dec 202332,003134,76871.262.61$2,632,375
Nov 202331,832130,45577.892.81$2,845,655
Oct 202334,239134,38285.443.09$3,340,255
Sep 202333,365126,58289.042.74$3,317,026
Aug 202336,806127,46180.522.67$3,304,307
Jul 202339,113137,19974.852.64$3,290,060
Jun 202340,885139,69968.962.26$3,134,937
May 202343,652125,91070.622.23$3,363,156
Apr 202344,784124,05778.122.24$3,776,136
Mar 202352,572142,41772.852.39$4,170,697
Feb 202348,079136,02575.112.47$3,946,608
Jan 202362,223160,88176.533.39$5,306,946
Dec 202267,099137,74776.415.73$5,916,198
Nov 202273,473150,97485.005.65$7,097,634
Oct 202278,536147,66087.185.86$7,712,611
Sep 202282,330155,93184.888.16$8,261,141
Aug 2022105,352161,48994.529.13$11,431,807
Jul 2022109,23499,006101.587.54$11,842,701
Jun 202291,09480,890115.097.98$11,129,284
May 202280,76771,484109.378.43$9,436,314
Apr 202223,02522,325104.226.84$2,552,315
Mar 2022237341108.885.08$27,536
Feb 20221,8153,26891.054.86$181,134
Jan 202210,13624,51181.844.54$940,753
Dec 20215,08718,90071.323.90$436,498
Nov 202110,45231,86577.435.24$976,171
Oct 20218,91716,43879.795.71$805,412
Sep 20219,26820,24269.865.35$755,776
Aug 20218,51523,13266.024.22$659,791
Jul 20218,96123,58770.783.98$728,185
Jun 20217,28922,56369.493.38$582,790
May 202111,47329,54863.483.02$817,472
Apr 202110,11831,98360.362.76$698,945
Mar 202113,84540,02961.302.72$957,455
Feb 202110,81320,08557.805.55$736,422
Jan 202112,89336,94450.412.81$753,759
Dec 202013,81336,11044.642.68$713,223
Nov 202014,31435,45538.772.71$650,915
Oct 202015,87340,48336.972.48$687,159
Sep 202015,93037,62637.091.99$665,759
Aug 202017,77744,05739.982.39$815,805
Jul 202017,49327,32738.371.83$721,081
Jun 202020,03718,51834.901.69$730,592
May 202015,34625,86916.921.81$306,600
Apr 202012,90821,88614.751.80$229,884
Mar 202010,61014,68130.341.86$349,159
Feb 20202,4061,59449.881.98$123,168
Jan 202016,48523,48657.252.09$992,963
Dec 201916,56921,75159.012.30$1,027,859
Nov 201911,90015,28155.302.75$700,103
Oct 201923,83742,87153.472.42$1,378,250
Sep 201924,32743,44055.052.66$1,454,634
Aug 201926,97247,81253.112.30$1,542,659
Jul 201927,83147,89656.272.46$1,683,877
Jun 201930,24741,63052.782.49$1,700,145
May 201922,09623,16458.482.74$1,355,651
Apr 201932,04358,56062.632.75$2,167,934
Mar 201933,84148,30056.803.06$2,070,068
Feb 201934,04750,37350.852.79$1,871,942
Jan 201944,01557,62746.033.23$2,212,041
Dec 201846,92355,06346.594.19$2,416,605
Nov 201862,28964,01252.934.24$3,568,191
Oct 201867,30858,48561.443.40$4,334,140
Sep 201863,80949,09759.543.11$3,951,781
Aug 201879,17063,60359.403.07$4,897,740
Jul 20189,4057,73865.142.93$635,329

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               13,602 bbl  × $106.41 = $1,447,389
Casinghead gas    92,797 Mcf  × $  3.05 =   $282,645

────────────────────────────────────────────────────
Month total                               $1,730,034

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/51858 is the state's own key, not one this site invented.