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GRAND CLEARFORK UNIT

Operated by GREENSTONE ENERGY, LLC (P-5 331330) in the BROWN & THORP, EAST (TUBB) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 28312District 08Field 12449800Hydrogen sulphide fieldOilCasinghead gasSaveExport
Value, all time
$28.2 M
Jan 1993 – May 2026
Value, last 12 filed months
$10 k
at the published price for each month
Months reported
401
no gaps in the span
Streams
2
oil, casinghead gas

The BROWN & THORP, EAST (TUBB) 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 17 leases and 160 wells, and the rule below applies to all of them.

Discovered
1965-05-09
as the register files it
Field class
Oil
the register's own label
Between wells
660 ft
minimum
From a lease line
330 ft
minimum

A drilling unit in this field needs at least 20 acres.

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: “OP. 20 DIAG. 1750”

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
OilDisposition678,483 bbl$28,248,614
Casinghead gasProduction19 Mcf$0
Total$28,248,614

19 Mcf of this lease's gas, across 19 months, carries no value here. No free Texas wellhead gas price exists before 1997, so those months are left out of the total rather than valued at zero. The total above is therefore a floor, not an estimate.

Wells on this lease (36)

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 31.0513, -102.3721. A lease has no coordinate of its own — that point is the mean of its wells, and they span 1.8 miles.

31.05091, -102.37002 · 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
11.1%
4 of 36 wells
With a plug date
11.1%
4 of 36 wells
Median depth
3,275 ft
28 wells filed one
Completion to plug
14.5 years
median over 4 wells

What the state filed about each well

On the RRC proration schedule
411.1%
A plug date is filed
411.1%
BothOn the schedule and plugged. Neither fact cancels the other.
411.1%
NeitherNo plug date, and not on the schedule.
3288.9%

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

Total depth in feet, 28 of 36 wells. Median 3,275 ft, with the middle half between 3,219 and 3,275 ft; the shallowest is 3,182 ft and the deepest 3,401 ft. The median is published rather than the mean, because a single mis-keyed depth moves a mean and cannot move a median.

When they were last completed

Last completion by decade, 23 of 36 wells, Aug 1968 – Jan 2009. This is the LAST completion filed on each wellbore, not the first — a well recompleted in 2019 counts once, in the 2010s.

Completions filed
Aug 1968 – Jan 2009
23 of 36 wells; 13 filed none
Plug dates filed
Apr 1996 – Aug 2017
4 of 36 wells; 32 filed none

Last completion to plug: a median of 14.5 years across the 4 wells that filed both dates, with the middle half between 10.5 years and 19.6 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

36 wells

42-371108951601————
42-371109781702————
42-371109791603————
42-371111361512————
42-371301833502————
42-371303553503————
42-371303633505————
42-371303983504————
42-3713042229053,275 ft———
42-3713047635123,275 ft———
42-3713047829033,280 ft———
42-3713058629073,326 ft———
42-3713061729083,315 ft———
42-3713848535133,401 ftJan 2009——
42-3713051129063,325 ftSep 2006——
42-3711091517013,188 ftMay 2005——
42-3713645035063,275 ftMar 2005——
42-3713644935073,275 ftFeb 2005——
42-3713054729043,300 ftAug 2000——
42-3713645115053,275 ftAug 2000Aug 2017Yes
42-3711091616023,182 ftAug 2000——
42-3711104416113,220 ftAug 2000——
42-3713645316123,275 ftAug 2000——
42-3713648716063,275 ftAug 2000——
42-3713698617033,250 ftMar 2000——
42-3713698515143,203 ftMar 2000——
42-3713648515063,275 ftJul 1994——
42-3713648635093,275 ftJul 1994Aug 2000Yes
42-3713647315133,275 ftApr 1994——
42-3713644735083,275 ftApr 1994——
42-3711095216043,185 ftApr 1994Mar 2006Yes
42-3713644629093,275 ftMar 1994——
42-3713436113,200 ftAug 1983——
42-3712043716053,216 ftMay 1969——
42-3711128915043,220 ftFeb 1969Apr 1996Yes
42-3711125915013,200 ftAug 1968——

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 (401)

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

401 months

May 202600106.413.05$0
Apr 20260098.932.87$0
Mar 20260089.753.15$0
Feb 20260063.503.75$0
Jan 20260059.138.00$0
Dec 20250056.664.41$0
Nov 20250058.593.93$0
Oct 20250059.383.30$0
Sep 20250062.743.08$0
Aug 2025153063.933.01$9,781
Jul 20250066.743.32$0
Jun 20250066.483.13$0
May 2025155060.553.23$9,385
Apr 20250062.363.54$0
Mar 20250067.704.27$0
Feb 202596070.884.34$6,804
Jan 20250074.324.28$0
Dec 2024110068.993.12$7,589
Nov 2024177069.052.20$12,222
Oct 2024156071.372.28$11,134
Sep 2024155069.612.36$10,790
Aug 2024174075.632.06$13,160
Jul 2024349079.932.15$27,896
Jun 2024279078.082.63$21,784
May 2024350078.812.20$27,584
Apr 2024368084.451.66$31,078
Mar 2024328080.301.55$26,338
Feb 20240076.091.78$0
Jan 2024165073.023.30$12,048
Dec 20230071.262.61$0
Nov 20230077.892.81$0
Oct 20230085.443.09$0
Sep 20230089.042.74$0
Aug 20230080.522.67$0
Jul 20230074.852.64$0
Jun 20230068.962.26$0
May 20230070.622.23$0
Apr 20230078.122.24$0
Mar 2023168072.852.39$12,239
Feb 20230075.112.47$0
Jan 20230076.533.39$0
Dec 20220076.415.73$0
Nov 20220085.005.65$0
Oct 20220087.185.86$0
Sep 20220084.888.16$0
Aug 20220094.529.13$0
Jul 202200101.587.54$0
Jun 202200115.097.98$0
May 202200109.378.43$0
Apr 202200104.226.84$0
Mar 202200108.885.08$0
Feb 20220091.054.86$0
Jan 20220081.844.54$0
Dec 20210071.323.90$0
Nov 20210077.435.24$0
Oct 20210079.795.71$0
Sep 20210069.865.35$0
Aug 20210066.024.22$0
Jul 20210070.783.98$0
Jun 20210069.493.38$0
May 20210063.483.02$0
Apr 20210060.362.76$0
Mar 20210061.302.72$0
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 2020502016.921.81$8,494
Apr 2020179014.751.80$2,640
Mar 2020523030.341.86$15,868
Feb 2020376049.881.98$18,755
Jan 2020189057.252.09$10,820
Dec 2019167059.012.30$9,855
Nov 2019348055.302.75$19,244
Oct 2019330053.472.42$17,645
Sep 2019173055.052.66$9,524
Aug 2019511053.112.30$27,139
Jul 2019163056.272.46$9,172
Jun 2019329052.782.49$17,365
May 2019669058.482.74$39,123
Apr 2019329062.632.75$20,605
Mar 2019327056.803.06$18,574
Feb 2019328050.852.79$16,679
Jan 2019517046.033.23$23,798
Dec 2018495046.594.19$23,062
Nov 2018857052.934.24$45,361
Oct 2018175061.443.40$10,752
Sep 2018682059.543.11$40,606
Aug 2018179059.403.07$10,633
Jul 201864065.142.93$4,169
Jun 2018794060.183.08$47,783
May 2018542065.382.90$35,436
Apr 2018186063.842.90$11,874
Mar 2018841061.222.79$51,486
Feb 20180061.782.77$0
Jan 20180062.874.01$0
Dec 2017195057.272.92$11,168
Nov 2017671055.423.12$37,187
Oct 2017178049.292.98$8,774
Sep 2017168047.523.09$7,983
Aug 2017182045.373.00$8,257
Jul 2017173043.873.09$7,590
Jun 2017524042.493.09$22,265
May 2017359045.373.26$16,288
Apr 2017199047.933.21$9,538
Mar 2017362046.772.98$16,931
Feb 2017489050.452.95$24,670
Jan 2017369049.413.42$18,232
Dec 2016373048.763.72$18,187
Nov 2016319042.492.64$13,554
Oct 2016195046.193.09$9,007
Sep 2016349041.553.10$14,501
Aug 2016553041.442.92$22,916
Jul 2016263041.622.92$10,946
Jun 2016331045.352.69$15,011
May 2016467042.521.99$19,857
Apr 2016470036.561.99$17,183
Mar 2016602033.011.79$19,872
Feb 2016459026.472.06$12,150
Jan 2016540027.352.36$14,769
Dec 2015709032.362.00$22,943
Nov 2015917038.792.17$35,570
Oct 20151,193043.552.43$51,955
Sep 2015649042.992.76$27,901
Aug 2015871040.162.87$34,979
Jul 2015754048.152.95$36,305
Jun 2015865056.152.88$48,570
May 2015947055.212.96$52,284
Apr 20151,011049.822.71$50,368
Mar 2015559042.892.93$23,976
Feb 2015934044.662.98$41,712
Jan 2015665043.433.10$28,881
Dec 2014944054.693.59$51,627
Nov 20141,000070.464.25$70,460
Oct 20141,651078.303.90$129,273
Sep 20141,169086.164.05$100,721
Aug 20141,082089.394.04$96,720
Jul 2014823096.564.18$79,469
Jun 2014943098.164.74$92,565
May 20141,157094.734.73$109,603
Apr 2014784095.944.81$75,217
Mar 2014991095.895.06$95,027
Feb 2014997097.406.19$97,108
Jan 20141,013090.404.86$91,575
Dec 2013942091.824.35$86,494
Nov 20131,385088.853.74$123,057
Oct 20131,693097.423.78$164,932
Sep 20131,2380104.113.72$128,888
Aug 20131,6620104.253.52$173,264
Jul 20131,4350102.523.72$147,116
Jun 20131,435094.403.93$135,464
May 20131,474094.834.15$139,779
Apr 20131,637093.964.28$153,813
Mar 20131,242093.623.91$116,276
Feb 20131,313091.233.42$119,785
Jan 2013679091.603.42$62,196
Dec 20121,810086.773.42$157,054
Nov 20121,926086.953.62$167,466
Oct 20121,592089.383.40$142,293
Sep 20121,428094.672.92$135,189
Aug 20121,770092.662.91$164,008
Jul 20122,301085.133.02$195,884
Jun 20121,390079.822.52$110,950
May 20121,720091.612.49$157,569
Apr 20121,7130101.652.00$174,126
Mar 20121,5970105.052.22$167,765
Feb 20121,5830101.102.57$160,041
Jan 20121,431098.092.73$140,367
Dec 20111,451096.873.24$140,558
Nov 20111,431095.723.31$136,975
Oct 20111,056084.983.65$89,739
Sep 20111,721083.623.99$143,910
Aug 20111,741083.404.15$145,199
Jul 20111,562094.144.52$147,047
Jun 20111,894092.904.64$175,953
May 20111,393098.134.40$136,695
Apr 20111,9050105.964.33$201,854
Mar 20111,613096.364.06$155,429
Feb 20111,710085.644.18$146,444
Jan 20111,762086.504.59$152,413
Dec 20101,782085.734.35$152,771
Nov 20101,764080.843.80$142,602
Oct 20101,607078.103.51$125,507
Sep 20101,926072.633.98$139,885
Aug 20101,755073.684.42$129,308
Jul 20101,576072.554.74$114,339
Jun 20101,751070.364.91$123,200
May 20102,072071.124.24$147,361
Apr 20101,750081.694.12$142,958
Mar 20102,082078.394.39$163,208
Feb 20101,568073.585.44$115,373
Jan 20102,097074.365.96$155,933
Dec 20091,587071.445.48$113,375
Nov 20091,748074.593.75$130,383
Oct 20092,265072.544.11$164,303
Sep 20091,919065.543.06$125,771
Aug 20091,572067.423.22$105,984
Jul 20092,069061.133.46$126,478
Jun 20091,756066.163.90$116,177
May 20092,087054.743.93$114,242
Apr 20092,080046.773.59$97,282
Mar 20092,095042.144.06$88,283
Feb 20092,281032.814.63$74,840
Jan 20091,906035.865.37$68,349
Dec 20082,076037.105.98$77,020
Nov 20081,743055.496.86$96,719
Oct 20081,761075.246.92$132,498
Sep 20082,1230101.767.88$216,036
Aug 20082,2710114.228.48$259,394
Jul 20082,4510131.0811.39$321,277
Jun 20082,1160131.3313.03$277,894
May 20082,2090123.1711.57$272,083
Apr 20082,7650110.3110.45$305,007
Mar 20082,2810101.909.66$232,434
Feb 20082,449092.538.77$226,606
Jan 20082,254090.388.21$203,717
Dec 20071,918088.337.30$169,417
Nov 20072,416091.677.29$221,475
Oct 20071,734082.856.92$143,662
Sep 20072,088075.846.24$158,354
Aug 20072,781069.066.39$192,056
Jul 20071,725070.906.39$122,303
Jun 20072,606062.007.55$161,572
May 20072,634058.747.85$154,721
Apr 20072,101059.617.81$125,241
Mar 20072,240056.927.30$127,501
Feb 20072,612055.108.22$143,921
Jan 20072,047050.306.73$102,964
Dec 20062,630056.656.92$148,990
Nov 20062,102054.207.62$113,928
Oct 20062,714054.906.01$148,999
Sep 20062,775060.085.04$166,722
Aug 20062,602068.717.34$178,783
Jul 20062,381069.376.34$165,170
Jun 20062,414066.286.38$160,000
May 20062,905066.016.42$191,759
Apr 20062,571064.397.36$165,547
Mar 20062,618056.707.08$148,441
Feb 20061,894057.597.75$109,075
Jan 20062,961060.598.93$179,407
Dec 20052,219054.9413.42$121,912
Nov 20052,555054.6910.59$139,733
Oct 20052,903058.3413.80$169,361
Sep 20053,262061.4512.08$200,450
Aug 20052,689061.519.80$165,400
Jul 20053,728055.697.84$207,612
Jun 20053,089052.337.38$161,647
May 20052,916045.226.65$131,862
Apr 20052,249049.207.36$110,651
Mar 20052,644050.377.15$133,178
Feb 20052,300045.226.31$104,006
Jan 20053,387043.166.32$146,183
Dec 20042,314039.866.75$92,236
Nov 20042,501045.286.33$113,245
Oct 20042,644049.706.52$131,407
Sep 20042,823043.245.28$122,067
Aug 20043,147042.375.55$133,338
Jul 20042,988038.286.08$114,381
Jun 20042,970036.106.43$107,217
May 20043,647037.486.49$136,690
Apr 20043,059034.475.86$105,444
Mar 20043,088034.365.53$106,104
Feb 20042,865032.455.51$92,969
Jan 20042,606032.036.30$83,470
Dec 20032,538030.266.30$76,800
Nov 20033,001028.804.60$86,429
Oct 20032,739028.174.76$77,158
Sep 20032,548026.314.75$67,038
Aug 20032,913029.765.13$86,691
Jul 20033,024029.415.17$88,936
Jun 20032,766028.565.98$78,997
May 20032,961026.595.97$78,733
Apr 20033,308026.675.41$88,224
Mar 20033,291031.146.10$102,482
Feb 20033,244033.487.93$108,609
Jan 20033,082030.315.58$93,415
Dec 20023,761026.914.85$101,209
Nov 20023,048024.664.14$75,164
Oct 20023,045026.464.23$80,571
Sep 20023,384027.443.64$92,857
Aug 20024,033025.963.16$104,697
Jul 20023,386024.583.06$83,228
Jun 20023,355023.733.34$79,614
May 20023,408024.663.58$84,041
Apr 20023,516023.653.51$83,153
Mar 20023,643022.003.10$80,146
Feb 20023,391018.222.38$61,784
Jan 20024,022017.172.38$69,058
Dec 20013,962016.932.36$67,077
Nov 20013,921018.072.41$70,852
Oct 20013,717019.782.53$73,522
Sep 20013,684024.262.25$89,374
Aug 20013,152024.873.05$78,390
Jul 20013,486023.933.20$83,420
Jun 20013,129024.563.82$76,848
May 20013,105025.524.31$79,240
Apr 20013,000024.685.34$74,040
Mar 20013,300024.545.38$80,982
Feb 20012,228027.755.77$61,827
Jan 20013,489027.478.40$95,843
Dec 20002,388026.889.12$64,189
Nov 20002,598032.215.66$83,682
Oct 20002,702031.235.15$84,383
Sep 20002,842031.875.19$90,575
Aug 20002,864029.644.54$84,889
Jul 20002,716028.534.09$77,487
Jun 20002,827029.304.40$82,831
May 20003,066027.263.68$83,579
Apr 20003,238024.513.12$79,363
Mar 20002,255028.422.86$64,087
Feb 20002,903027.622.73$80,181
Jan 20002,727025.272.48$68,911
Dec 19993,379024.282.42$82,042
Nov 19993,009023.192.43$69,779
Oct 19992,992020.982.80$62,772
Sep 19992,372021.752.62$51,591
Aug 19992,602019.262.88$50,115
Jul 19992,422017.892.37$43,330
Jun 19992,947015.942.36$46,975
May 19992,579015.792.32$40,722
Apr 19992,267015.102.21$34,232
Mar 19991,930012.471.84$24,067
Feb 19992,63009.981.82$26,247
Jan 19990010.381.90$0
Dec 199898009.201.77$9,016
Nov 19981,862010.892.19$20,277
Oct 19981,477012.421.97$18,344
Sep 19982,610012.592.08$32,860
Aug 1998755011.301.91$8,532
Jul 19982,162011.742.24$25,382
Jun 19981,799011.242.24$20,221
May 19982,634012.622.21$33,241
Apr 19982,582013.042.51$33,669
Mar 19983,035012.802.31$38,848
Feb 19983,045013.952.30$42,478
Jan 19983,800014.702.15$55,860
Dec 19973,816016.322.41$62,277
Nov 19973,652018.193.09$66,430
Oct 19974,663019.253.15$89,763
Sep 19973,908017.742.95$69,328
Aug 19974,403017.862.55$78,638
Jul 19974,282017.582.25$75,278
Jun 19973,816017.242.26$65,788
May 19972,783018.972.31$52,794
Apr 19973,665017.882.08$65,530
Mar 19973,769018.951.94$71,423
Feb 19973,374020.492.21$69,133
Jan 19972,943023.483.54$69,102
Dec 19964,135023.32—$96,428
Nov 19963,438021.97—$75,533
Oct 19964,501023.31—$104,918
Sep 19964,020022.22—$89,324
Aug 19965,140020.26—$104,136
Jul 19964,414019.55—$86,294
Jun 19963,357018.73—$62,877
May 19964,695019.43—$91,224
Apr 19964,245021.51—$91,310
Mar 19964,566019.38—$88,489
Feb 19964,327016.98—$73,472
Jan 19965,678017.07—$96,923
Dec 19955,198017.19—$89,354
Nov 19955,204016.00—$83,264
Oct 19955,232015.43—$80,730
Sep 19954,663016.18—$75,447
Aug 19954,703015.92—$74,872
Jul 19954,995015.24—$76,124
Jun 19954,560016.41—$74,830
May 19954,355017.56—$76,474
Apr 19955,059017.73—$89,696
Mar 19955,722016.44—$94,070
Feb 19954,735016.58—$78,506
Jan 19954,680015.92—$74,506
Dec 19945,538015.03—$83,236
Nov 19944,442015.90—$70,628
Oct 19946,299115.58—$98,138
Sep 19940115.29—$0
Aug 19940116.13—$0
Jul 19940117.56—$0
Jun 19940117.09—$0
May 19940115.88—$0
Apr 19940114.14—$0
Mar 199456112.46—$698
Feb 19940112.50—$0
Jan 19940112.66—$0
Dec 19930012.33—$0
Nov 199378014.49—$1,130
Oct 19930015.85—$0
Sep 19930115.03—$0
Aug 19930115.66—$0
Jul 19930115.46—$0
Jun 1993131116.79—$2,199
May 19930117.68—$0
Apr 19930118.05—$0
Mar 19930118.14—$0
Feb 19930117.90—$0
Jan 19930116.93—$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.

Aug 2025 — as filed, then multipliedworked
Oil                  153 bbl  × $ 63.93 =     $9,781
Casinghead gas         0 Mcf  × $  3.01 =         $0

────────────────────────────────────────────────────
Month total                                   $9,781

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/28312 is the state's own key, not one this site invented.