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BLALOCK 1319

Operated by XTO ENERGY INC. (P-5 945936) 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 51321District 08Field 85280300OilCasinghead gasSaveExport
Value, all time
$30.3 M
Nov 2018 – May 2026
Value, last 12 filed months
$1.6 M
at the published price for each month
Months reported
91
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
OilDisposition491,966 bbl$27,664,738
Casinghead gasProduction883,470 Mcf$2,633,119
Total$30,297,857

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 31.9137, -101.7018. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.0 miles.

31.91365, -101.70175 · 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
8,228 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 8,228 ft.

Completions filed
Nov 2018
1 of 1 wells

1 well

42-173378911319AH8,228 ftNov 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 (91)

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

91 months

May 20261,0946,649106.413.05$136,664
Apr 20261,1286,11698.932.87$129,144
Mar 20261,3106,48689.753.15$138,000
Feb 20261,08319,07363.503.75$140,300
Jan 20261,26014,54959.138.00$190,866
Dec 20251,4164,81556.664.41$101,481
Nov 20251,6295,38858.593.93$116,599
Oct 20251,6966,28459.383.30$121,476
Sep 20251,5195,42162.743.08$111,982
Aug 20251,7316,39263.933.01$129,933
Jul 20251,5875,93466.743.32$125,589
Jun 20251,8655,89866.483.13$142,438
May 20252,0005,63960.553.23$139,327
Apr 20251,7955,11562.363.54$130,059
Mar 20252,0095,45267.704.27$159,280
Feb 20251,8214,50270.884.34$148,615
Jan 20251,9594,56374.324.28$165,117
Dec 20241,9024,46968.993.12$145,168
Nov 20241,7133,77769.052.20$126,586
Oct 20242,0834,45271.372.28$158,821
Sep 20242,2065,13769.612.36$165,705
Aug 20242,2084,66475.632.06$176,616
Jul 20242,2574,01679.932.15$189,023
Jun 20241,7913,83278.082.63$149,935
May 20242,7454,08978.812.20$225,323
Apr 202445558284.451.66$39,390
Mar 20241,4171,76080.301.55$116,505
Feb 20241,5231,43676.091.78$118,446
Jan 20241,1162,17573.023.30$88,663
Dec 20231,8114,50771.262.61$140,818
Nov 20232,5814,84277.892.81$214,628
Oct 20232,3683,65585.443.09$213,606
Sep 20232,7633,68089.042.74$256,082
Aug 20232,6823,48980.522.67$225,280
Jul 20234,0914,05174.852.64$316,913
Jun 20233,3082,05668.962.26$232,763
May 20233,4011,71570.622.23$243,999
Apr 20233,2321,44478.122.24$255,715
Mar 20234,0752,01372.852.39$301,681
Feb 20233,2661,50975.112.47$249,030
Jan 20233,7461,69276.533.39$292,413
Dec 20223,1561,46176.415.73$249,520
Nov 20223,1241,75985.005.65$275,472
Oct 20222,3521,49187.185.86$213,790
Sep 20225465,30684.888.16$89,661
Aug 202259980794.529.13$63,983
Jul 202223902101.587.54$9,139
Jun 2022263115.097.98$733
May 2022161,675109.378.43$15,875
Apr 20223,4734,947104.226.84$395,782
Mar 20224,1166,845108.885.08$482,898
Feb 20223,2954,95291.054.86$324,071
Jan 20222,4612,32081.844.54$211,936
Dec 20212,2552,51771.323.90$170,641
Nov 202171476177.435.24$59,270
Oct 20218387879.795.71$11,639
Sep 20212,7759,39669.865.35$244,139
Aug 20215,65619,46466.024.22$455,559
Jul 20216,12319,19970.783.98$509,838
Jun 20216,38319,50369.493.38$509,487
May 20216,64520,32363.483.02$483,153
Apr 20216,83319,67860.362.76$466,720
Mar 20217,67920,44861.302.72$526,279
Feb 20215,29315,31257.805.55$390,886
Jan 20216,99919,37450.412.81$407,266
Dec 20208,06821,71844.642.68$418,261
Nov 20207,28119,10538.772.71$333,993
Oct 20208,20323,80536.972.48$362,264
Sep 20209,04825,95737.091.99$387,272
Aug 202010,04526,90239.982.39$465,763
Jul 202010,97024,39338.371.83$465,439
Jun 202011,08520,74134.901.69$421,925
May 20209,20617,22116.921.81$187,017
Apr 20209,58122,40914.751.80$181,754
Mar 202012,03923,05530.341.86$408,059
Feb 20208,80019,27449.881.98$477,119
Jan 202010,62720,93057.252.09$652,239
Dec 201913,27929,88059.012.30$852,448
Nov 201914,39130,77155.302.75$880,464
Oct 201922,80735,02353.472.42$1,304,195
Sep 201921,34035,27555.052.66$1,268,503
Aug 201927,91734,77953.112.30$1,562,815
Jul 201917,22311,67356.272.46$997,854
Jun 20193,1631,26352.782.49$170,090
May 201910,4995,14858.482.74$628,089
Apr 201919,0229,65062.632.75$1,217,892
Mar 20199,8805,71456.803.06$578,681
Feb 201913,5556,50350.852.79$707,430
Jan 201916,0826,75046.033.23$762,045
Dec 201820,37311,58046.594.19$997,645
Nov 20181,2391,25252.934.24$70,885

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                1,094 bbl  × $106.41 =   $116,413
Casinghead gas     6,649 Mcf  × $  3.05 =    $20,252

────────────────────────────────────────────────────
Month total                                 $136,664

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/51321 is the state's own key, not one this site invented.