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BLALOCK

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 39648District 08Field 85280300OilCasinghead gasSaveExport
Value, all time
$12.0 M
Oct 2009 – May 2026
Value, last 12 filed months
$379 k
at the published price for each month
Months reported
200
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
OilDisposition121,108 bbl$8,768,217
Casinghead gasProduction867,579 Mcf$3,237,386
Total$12,005,603

Wells on this lease (3)

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 31.9231, -101.7066. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.5 miles.

31.92360, -101.70700 · 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
33.3%
1 of 3 wells
With a plug date
33.3%
1 of 3 wells
Median depth
10,880 ft
3 wells filed one
Completion to plug
4.8 years
median over 1 well

What the state filed about each well

On the RRC proration schedule
133.3%
A plug date is filed
133.3%
BothOn the schedule and plugged. Neither fact cancels the other.
133.3%
NeitherNo plug date, and not on the schedule.
266.7%

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 10,300 and 10,940 ft, median 10,880 ft, over the 3 wells that filed a depth.

Completions filed
Apr 2012 – May 2016
3 of 3 wells
Plug dates filed
Feb 2021
1 of 3 wells; 2 filed none

Last completion to plug: a median of 4.8 years across the 1 well that filed both dates, with the middle half between 4.8 years and 4.8 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

3 wells

42-17333511121610,300 ftMay 2016Feb 2021Yes
42-17335306121410,940 ftApr 2014——
42-17334271120110,880 ftApr 2012——

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 (200)

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

200 months

May 20264044,351106.413.05$56,242
Apr 20264574,73298.932.87$58,791
Mar 20265954,46289.753.15$67,454
Feb 20263383,63363.503.75$35,088
Jan 20262741,42259.138.00$27,575
Dec 202514145156.664.41$9,979
Nov 20251841,93958.593.93$18,394
Oct 20251781,90559.383.30$16,865
Sep 20252312,01262.743.08$20,684
Aug 20252101,48563.933.01$17,902
Jul 20251741,73966.743.32$17,378
Jun 20254271,20366.483.13$32,151
May 20253551,40660.553.23$26,040
Apr 20253741,36662.363.54$28,163
Mar 202541880667.704.27$31,739
Feb 202510316970.884.34$8,034
Jan 20251219074.324.28$1,705
Dec 202417027568.993.12$12,587
Nov 20244823269.052.20$3,824
Oct 2024644871.372.28$4,677
Sep 202490169.612.36$6,267
Aug 2024766875.632.06$5,888
Jul 2024397779.932.15$3,283
Jun 20245612378.082.63$4,696
May 202417910678.812.20$14,340
Apr 202424115484.451.66$20,608
Mar 202432653080.301.55$26,997
Feb 202437150176.091.78$29,123
Jan 202428656573.023.30$22,747
Dec 202342341871.262.61$31,234
Nov 202312557177.892.81$11,339
Oct 202341182885.443.09$37,672
Sep 202326065289.042.74$24,934
Aug 20235301,04080.522.67$45,455
Jul 202330476174.852.64$24,765
Jun 202322740468.962.26$16,566
May 202314353270.622.23$11,284
Apr 202315585978.122.24$14,031
Mar 202314998872.852.39$13,219
Feb 2023178075.112.47$13,370
Jan 202318641676.533.39$15,644
Dec 202238058976.415.73$32,410
Nov 202219150685.005.65$19,092
Oct 202254358787.185.86$50,781
Sep 202255870384.888.16$53,102
Aug 202274662694.529.13$76,226
Jul 20220233101.587.54$1,757
Jun 20223550115.097.98$40,857
May 202200109.378.43$0
Apr 2022194246104.226.84$21,901
Mar 2022173434108.885.08$21,039
Feb 2022024591.054.86$1,190
Jan 202218766281.844.54$18,308
Dec 202136253671.323.90$27,908
Nov 202135459877.435.24$30,542
Oct 2021053079.795.71$3,028
Sep 20215351,44369.865.35$45,096
Aug 202101,34666.024.22$5,681
Jul 20215482,09170.783.98$47,114
Jun 20211641,49669.493.38$16,454
May 20213361,50263.483.02$25,862
Apr 20211831,14860.362.76$14,213
Mar 20213461,55061.302.72$25,421
Feb 202118671157.805.55$14,695
Jan 20213741,40450.412.81$22,799
Dec 20201711,43244.642.68$11,465
Nov 20203561,30938.772.71$17,345
Oct 20201752,01836.972.48$11,471
Sep 20203461,96937.091.99$16,754
Aug 20205192,32639.982.39$26,297
Jul 20203492,16338.371.83$17,339
Jun 202037497634.901.69$14,702
May 202019151316.921.81$4,163
Apr 202018138314.751.80$3,361
Mar 202018831630.341.86$6,290
Feb 202017865949.881.98$10,184
Jan 20203751,88457.252.09$25,415
Dec 20193691,92659.012.30$26,213
Nov 20193731,88855.302.75$25,820
Oct 20193901,69953.472.42$24,962
Sep 201955058155.052.66$31,821
Aug 2019548053.112.30$29,104
Jul 2019825056.272.46$46,423
Jun 2019349052.782.49$18,420
May 201934599358.482.74$22,897
Apr 20197301,13862.632.75$48,850
Mar 201992194856.803.06$55,216
Feb 201971462050.852.79$38,038
Jan 201952529446.033.23$25,115
Dec 20180046.594.19$0
Nov 201807652.934.24$322
Oct 20180061.443.40$0
Sep 20183428059.543.11$20,611
Aug 20185311,28559.403.07$35,482
Jul 20185263,69765.142.93$45,103
Jun 20188645,41460.183.08$68,654
May 201869256865.382.90$46,891
Apr 201853645163.842.90$35,527
Mar 201852541061.222.79$33,283
Feb 201853137961.782.77$33,854
Jan 201835640762.874.01$24,014
Dec 20177101,01257.272.92$43,618
Nov 20171741,25655.423.12$13,560
Oct 20176961,07649.292.98$37,516
Sep 20175052,17747.523.09$30,719
Aug 20178672,94145.373.00$48,172
Jul 20171724,01043.873.09$19,926
Jun 20178885,02042.493.09$53,229
May 20177086,05545.373.26$51,882
Apr 20176985,16047.933.21$50,027
Mar 20176976,29546.772.98$51,381
Feb 20171,0745,61250.452.95$70,753
Jan 20179006,36749.413.42$66,237
Dec 20166855,60648.763.72$54,271
Nov 20167232,47542.492.64$37,265
Oct 20167211,53346.193.09$38,040
Sep 20167418,33441.553.10$56,629
Aug 20167228,98841.442.92$56,204
Jul 201673310,13341.622.92$60,140
Jun 20161,26911,60845.352.69$88,726
May 20167317,61542.521.99$46,244
Apr 20161,1099,31336.561.99$59,088
Mar 20169269,02033.011.79$46,749
Feb 201691210,59226.472.06$45,999
Jan 20161,1088,19227.352.36$49,673
Dec 201575310,69032.362.00$45,762
Nov 20151,15713,41538.792.17$73,955
Oct 20151,51715,99943.552.43$104,888
Sep 201572817,35342.992.76$79,164
Aug 20151,12117,57040.162.87$95,489
Jul 20151,8659,14348.152.95$116,727
Jun 20153782,27656.152.88$27,786
May 20151,1545,01155.212.96$78,522
Apr 20151,1632,37549.822.71$64,369
Mar 20154112,40242.892.93$24,677
Feb 20157562,87644.662.98$42,322
Jan 20159514,30343.433.10$54,644
Dec 20141,2476,35754.693.59$91,029
Nov 20141,14814,45970.464.25$142,365
Oct 20141,11522,96078.303.90$176,871
Sep 20141,63123,08086.164.05$233,896
Aug 20141,39826,94489.394.04$233,689
Jul 20141,43429,24696.564.18$260,704
Jun 20141,57129,50298.164.74$293,957
May 20141,40128,63794.734.73$268,071
Apr 20141,78729,71895.944.81$314,362
Mar 20142,15035,64895.895.06$386,428
Feb 20142,84230,12397.406.19$463,332
Jan 20141,6068,74190.404.86$187,670
Dec 20131,43115,56291.824.35$199,159
Nov 20132,31820,51888.853.74$282,656
Oct 20132,32020,62197.423.78$303,949
Sep 20132,27625,131104.113.72$330,385
Aug 20132,77425,976104.253.52$380,693
Jul 20133,36922,191102.523.72$427,890
Jun 20133,68520,31894.403.93$427,783
May 20134,39721,27394.834.15$505,231
Apr 20133253,46893.964.28$45,389
Mar 20132361,85293.623.91$29,341
Feb 20131761,03591.233.42$19,596
Jan 201328058991.603.42$27,662
Dec 20122911,14586.773.42$29,166
Nov 20122471,41486.953.62$26,602
Oct 20122031,87189.383.40$24,505
Sep 20121882,16194.672.92$24,105
Aug 201240238992.662.91$38,381
Jul 201235129985.133.02$30,784
Jun 201222552579.822.52$19,282
May 20126361,35091.612.49$61,623
Apr 2012694784101.652.00$72,111
Mar 2012189832105.052.22$21,703
Feb 2012381755101.102.57$40,460
Jan 201218477898.092.73$20,176
Dec 201117885196.873.24$20,000
Nov 201138387795.723.31$39,565
Oct 201135471784.983.65$32,699
Sep 2011560983.623.99$2,845
Aug 201136494883.404.15$34,291
Jul 201134494394.144.52$36,644
Jun 2011053492.904.64$2,478
May 201134298498.134.40$37,895
Apr 20111781,060105.964.33$23,454
Mar 20113821,10696.364.06$41,297
Feb 20111821,02285.644.18$19,858
Jan 20113991,12986.504.59$39,694
Dec 20103561,24685.734.35$35,937
Nov 20103611,27580.843.80$34,022
Oct 20103791,39878.103.51$34,505
Sep 20103481,40272.633.98$30,854
Aug 20105151,61773.684.42$45,091
Jul 20105251,77072.554.74$46,472
Jun 20103661,87370.364.91$34,949
May 20101742,12271.124.24$21,362
Apr 20105332,28981.694.12$52,978
Mar 20107262,36278.394.39$67,277
Feb 20105582,55173.585.44$54,941
Jan 20105803,49174.365.96$63,949
Dec 20091,6414,97971.445.48$144,537
Nov 20091,2954,54874.593.75$113,656
Oct 20097372,41372.544.11$63,380

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                  404 bbl  × $106.41 =    $42,990
Casinghead gas     4,351 Mcf  × $  3.05 =    $13,252

────────────────────────────────────────────────────
Month total                                  $56,242

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/39648 is the state's own key, not one this site invented.