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RIO SAN MARCOS 36-45 UNIT 1A

Operated by DIAMONDBACK E&P LLC (P-5 217012) in the SPRABERRY (TREND AREA) R 40 EXC field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 53693District 08Field 85280301Hydrogen sulphide fieldOilCasinghead gasSaveExport
Value, all time
$92.2 M
Feb 2020 – May 2026
Value, last 12 filed months
$7.9 M
at the published price for each month
Months reported
76
no gaps in the span
Streams
2
oil, casinghead gas

The SPRABERRY (TREND AREA) R 40 EXC 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 581 leases and 1,079 wells, and the rule below applies to all of them.

Discovered
2013-12-18
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 register flags this field for hydrogen sulphide. That is a poisonous gas that occurs naturally in some formations. The flag is a property of the field as the Commission records it. It is not a measurement taken at this lease, and it is not a statement that gas is escaping anywhere.

The Commission's schedule remark for this field reads: “DESIGNATED AS UFT FIELD PER DOCKET 01-0299858”

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
OilDisposition1,255,361 bbl$75,872,058
Casinghead gasProduction4,257,561 Mcf$16,345,429
Total$92,217,487

Wells on this lease (5)

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 31.7632, -101.9955. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.3 miles.

31.76329, -101.99472 · 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 5 wells
With a plug date
0.0%
0 of 5 wells
Median depth
8,887 ft
5 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.
5100.0%

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 8,108 and 8,912 ft, median 8,887 ft, over the 5 wells that filed a depth.

Completions filed
Feb 2020
5 of 5 wells

5 wells

42-329434611258,912 ftFeb 2020——
42-329434621348,907 ftFeb 2020——
42-329434631358,525 ftFeb 2020——
42-329434641438,108 ftFeb 2020——
42-329434651448,887 ftFeb 2020——

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 (76)

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

76 months

May 20264,4433,895106.413.05$484,643
Apr 20262,79470,98598.932.87$480,117
Mar 20261,63471,47789.753.15$371,764
Feb 20265,21581,86763.503.75$638,180
Jan 20266,88090,88959.138.00$1,133,737
Dec 20257,26886,83156.664.41$795,021
Nov 20257,17868,71658.593.93$690,368
Oct 20258,50774,35559.383.30$750,877
Sep 20256,08973,29062.743.08$607,531
Aug 20256,71466,09263.933.01$628,478
Jul 20257,81251,29566.743.32$691,426
Jun 20256,94248,58466.483.13$613,510
May 20256,27948,57860.553.23$537,213
Apr 20255,33043,46262.363.54$486,370
Mar 20253,81338,33067.704.27$421,745
Feb 20251,50216,06170.884.34$176,180
Jan 20251,0414,13374.324.28$95,051
Dec 20245,79559,48468.993.12$585,469
Nov 20247,65078,44969.052.20$700,698
Oct 20248,14978,32171.372.28$760,276
Sep 20247,68777,44569.612.36$718,200
Aug 20248,42476,80775.632.06$795,608
Jul 202410,28772,75179.932.15$978,406
Jun 202411,61471,54778.082.63$1,095,274
May 202412,36664,60478.812.20$1,116,592
Apr 202412,85170,89684.451.66$1,202,898
Mar 202415,49874,06980.301.55$1,358,936
Feb 202410,39536,01176.091.78$855,186
Jan 20247,72525,05473.023.30$646,699
Dec 202311,81254,36071.262.61$983,642
Nov 20237,05237,97477.892.81$655,895
Oct 20239,77550,93085.443.09$992,411
Sep 20237,94442,62489.042.74$823,912
Aug 20237,02727,65680.522.67$639,735
Jul 20238,16728,70274.852.64$687,125
Jun 202310,20121,25068.962.26$751,454
May 202315,50018,78370.622.23$1,136,447
Apr 202314,82719,21078.122.24$1,201,273
Mar 202316,79856,02772.852.39$1,357,816
Feb 202313,28542,86175.112.47$1,103,518
Jan 202316,36066,31776.533.39$1,476,694
Dec 202216,30175,39276.415.73$1,677,486
Nov 202214,61776,12985.005.65$1,672,285
Oct 202214,56969,88287.185.86$1,679,897
Sep 20228,97741,60084.888.16$1,101,577
Aug 202212,66163,56894.529.13$1,776,913
Jul 202213,59470,128101.587.54$1,909,790
Jun 202211,96267,779115.097.98$1,917,393
May 202215,96168,222109.378.43$2,320,973
Apr 202212,00672,068104.226.84$1,744,037
Mar 202211,84676,147108.885.08$1,676,345
Feb 202215,93882,20391.054.86$1,850,566
Jan 202216,58659,71181.844.54$1,628,348
Dec 202122,15890,29571.323.90$1,932,380
Nov 202121,71582,75477.435.24$2,114,763
Oct 202125,536100,76779.795.71$2,613,287
Sep 202126,34891,55369.865.35$2,330,564
Aug 202126,46478,56466.024.22$2,078,740
Jul 202125,90878,82870.783.98$2,147,668
Jun 202124,90975,30369.493.38$1,985,497
May 202126,25768,21563.483.02$1,872,645
Apr 202126,52485,16560.362.76$1,835,909
Mar 202132,51345,81161.302.72$2,117,513
Feb 202123,09214,97357.805.55$1,417,787
Jan 202125,9535,51250.412.81$1,323,781
Dec 202030,3703,45944.642.68$1,364,971
Nov 202037,8456,82938.772.71$1,485,734
Oct 202034,50814,23336.972.48$1,311,036
Sep 202034,56467,12037.091.99$1,415,617
Aug 202037,78787,37639.982.39$1,719,125
Jul 202040,83277,10938.371.83$1,707,457
Jun 202043,61356,73034.901.69$1,617,985
May 202048,42852,08716.921.81$913,927
Apr 202052,23033,74414.751.80$831,280
Mar 202048,76418,18430.341.86$1,513,253
Feb 202027,3959,14949.881.98$1,384,584

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                4,443 bbl  × $106.41 =   $472,780
Casinghead gas     3,895 Mcf  × $  3.05 =    $11,864

────────────────────────────────────────────────────
Month total                                 $484,643

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/53693 is the state's own key, not one this site invented.