BROOK D-W31C

Operated by PIONEER NATURAL RES. USA, INC. (P-5 665748) 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 21077District 7CField 85279201OilCasinghead gasSaveExport
Value, all time
$20.4 M
Mar 2020 – May 2026
Value, last 12 filed months
$1.7 M
at the published price for each month
Months reported
75
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 721 leases and 1,413 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 2024-02-01.

The Commission's schedule remark for this field reads: ALLOCATION FORMULA EFFECTIVE 02/01/2024.

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
OilDisposition249,035 bbl$18,759,113
Casinghead gasProduction458,903 Mcf$1,638,194
Total$20,397,307

Wells on this lease (1)

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 31.3731, -101.7932. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.0 miles.

31.37309, -101.79316 · 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 1 wells
With a plug date
0.0%
0 of 1 wells
Median depth
9,236 ft
1 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.
1100.0%

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

The one well that filed a depth was drilled to 9,236 ft.

Completions filed
Mar 2021
1 of 1 wells

1 well

42-46141359103H9,236 ftMar 2021

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 (75)

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

75 months

May 20263,0653,581106.413.05$337,054
Apr 20266601,59498.932.87$69,868
Mar 20267953,55589.753.15$82,548
Feb 20261,4644,31663.503.75$109,150
Jan 20261,7155,26359.138.00$143,501
Dec 20251,9195,29756.664.41$132,108
Nov 20251,5403,35058.593.93$103,382
Oct 20251,3265,64959.383.30$97,407
Sep 20252,20510,46962.743.08$170,554
Aug 20252,51711,31463.933.01$195,021
Jul 20251,62012,67166.743.32$150,126
Jun 20251,9408,27166.483.13$154,849
May 20251,5794,31160.553.23$109,543
Apr 20251,55511,28962.363.54$136,968
Mar 20252,6999,37567.704.27$222,738
Feb 20251,8847,76170.884.34$167,227
Jan 20252,1623,72374.324.28$176,609
Dec 20242,3101,87568.993.12$165,219
Nov 20241,60527,19869.052.20$170,618
Oct 202451638,65971.372.28$125,024
Sep 202416022,16769.612.36$63,548
Aug 20244035275.632.06$3,752
Jul 20247791,97279.932.15$66,499
Jun 20241,5013,55478.082.63$126,559
May 20241,6723,56678.812.20$139,610
Apr 20241,6013,58184.451.66$141,146
Mar 20241,8423,96580.301.55$154,039
Feb 20241,8274,27176.091.78$146,634
Jan 20242,3295,83973.023.30$189,319
Dec 20232,1465,59771.262.61$167,536
Nov 20231,27633677.892.81$100,331
Oct 20231,42653885.443.09$123,498
Sep 20231,24459289.042.74$112,385
Aug 20231,23368180.522.67$101,101
Jul 20231,62966074.852.64$123,674
Jun 20232,1052,71268.962.26$151,286
May 20232,6204,75870.622.23$195,622
Apr 20233,3119,90378.122.24$280,816
Mar 20231,4281,17172.852.39$106,832
Feb 20233,1626,97475.112.47$254,693
Jan 20234,29610,76276.533.39$365,232
Dec 20222,8504,54176.415.73$243,784
Nov 20223,1144,48285.005.65$289,996
Oct 20223,2564,74987.185.86$311,705
Sep 20223,0692,36484.888.16$279,796
Aug 20223,3461,95094.529.13$334,062
Jul 20223,6092,612101.587.54$386,302
Jun 20223,8352,972115.097.98$465,078
May 20225,0234,873109.378.43$590,460
Apr 20224,2083,780104.226.84$464,404
Mar 20227,6247,725108.885.08$869,316
Feb 20224,7184,87591.054.86$453,261
Jan 20226,6047,06381.844.54$572,521
Dec 202110,19211,45671.323.90$771,562
Nov 20218,9729,66577.435.24$745,316
Oct 20219,83510,65379.795.71$845,605
Sep 202110,99011,66869.865.35$830,196
Aug 202110,16911,33266.024.22$719,185
Jul 202112,58513,01270.783.98$942,581
Jun 202114,25915,26769.493.38$1,042,470
May 202117,27919,38963.483.02$1,155,381
Apr 202123,70924,58060.362.76$1,498,877
Mar 20217,0866,42361.302.72$451,823
Feb 20210057.805.55$0
Jan 20210050.412.81$0
Dec 20200044.642.68$0
Nov 20200038.772.71$0
Oct 20200036.972.48$0
Sep 20200037.091.99$0
Aug 20200039.982.39$0
Jul 20200038.371.83$0
Jun 20200034.901.69$0
May 20200016.921.81$0
Apr 20200014.751.80$0
Mar 20200030.341.86$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                3,065 bbl  × $106.41 =   $326,147
Casinghead gas     3,581 Mcf  × $  3.05 =    $10,907

────────────────────────────────────────────────────
Month total                                 $337,054

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/21077 is the state's own key, not one this site invented.