KEY WEST WATERFLOOD UNIT

Operated by MOMENTUM ENERGY CORPORATION (P-5 574315) in the KEY WEST (SPRABERRY) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 66640District 8AField 49125500OilCasinghead gasSaveExport
Value, all time
$19.6 M
Jan 1993 – May 2026
Value, last 12 filed months
$269 k
at the published price for each month
Months reported
401
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 35 leases and 71 wells, and the rule below applies to all of them.

Discovered
1982-11-23
as the register files it
Field class
Oil
the register's own label
Between wells
933 ft
minimum
From a lease line
330 ft
minimum

A drilling unit in this field needs at least 40 acres. The field rule took effect on 1987-09-14.

The Commission's schedule remark for this field reads: 40 ACRE OPT., DIAG. 2100

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
OilDisposition740,617 bbl$19,487,310
Casinghead gasProduction183,262 Mcf$119,688
Total$19,606,998

155,688 Mcf of this lease's gas, across 48 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 (15)

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 32.7030, -101.9219. A lease has no coordinate of its own — that point is the mean of its wells, and they span 1.5 miles.

32.70324, -101.92169 · 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
73.3%
11 of 15 wells
With a plug date
80.0%
12 of 15 wells
Median depth
7,850 ft
15 wells filed one
Completion to plug
12.4 years
median over 11 wells

What the state filed about each well

On the RRC proration schedule
1173.3%
A plug date is filed
1280.0%
BothOn the schedule and plugged. Neither fact cancels the other.
1173.3%
NeitherNo plug date, and not on the schedule.
320.0%

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

Total depth in feet, 15 of 15 wells. Median 7,850 ft, with the middle half between 7,765 and 7,945 ft; the shallowest is 7,700 ft and the deepest 9,460 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, 15 of 15 wells, Nov 1982 – Dec 1991. This is the LAST completion filed on each wellbore, not the first — a well recompleted in 2019 counts once, in the 2010s.

Completions filed
Nov 1982 – Dec 1991
15 of 15 wells
Plug dates filed
Jul 1982 – Jan 2015
12 of 15 wells; 3 filed none

Last completion to plug: a median of 12.4 years across the 11 wells that filed both dates, with the middle half between 11.4 years and 19.5 years. A further 1 well is excluded, because the last completion the Commission holds for it is dated after the plug date. Both dates are the latest of their kind on the wellbore record and they are filed separately, so the two need not run in order. The gap is the distance between two filed dates — it is not a statement of how long the well produced.

15 wells

42-1153267614017,700 ftDec 1991Nov 2012Yes
42-1153267920027,860 ftSep 1991Apr 2001Yes
42-1153213216018,050 ftApr 1991Sep 2003Yes
42-115317759017,743 ftApr 1991Sep 2002Yes
42-1153190213017,787 ftApr 1991Sep 2002Yes
42-115323088017,950 ftApr 1991Jul 2011Yes
42-115323095017,920 ftNov 1985
42-115321996017,940 ftJun 1985
42-1153215019017,838 ftMay 1985Jan 2015Yes
42-1153205217017,750 ftAug 1984
42-1153195022017,850 ftDec 1983Sep 2002Yes
42-115318451017,715 ftAug 1983Dec 1994Yes
42-1153170320018,450 ftApr 1983Jul 1982
42-1153179315017,780 ftMar 1983Dec 1994Yes
42-1153174310019,460 ftNov 1982Nov 1996Yes

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 20263630106.413.05$38,627
Apr 2026345098.932.87$34,131
Mar 2026365089.753.15$32,759
Feb 2026165063.503.75$10,478
Jan 2026543059.138.00$32,108
Dec 20250056.664.41$0
Nov 2025364058.593.93$21,327
Oct 2025532059.383.30$31,590
Sep 2025359062.743.08$22,524
Aug 2025353063.933.01$22,567
Jul 2025174066.743.32$11,613
Jun 2025177066.483.13$11,767
May 2025357060.553.23$21,616
Apr 2025345062.363.54$21,514
Mar 2025354067.704.27$23,966
Feb 2025359070.884.34$25,446
Jan 2025362074.324.28$26,904
Dec 2024360068.993.12$24,836
Nov 2024363069.052.20$25,065
Oct 2024343071.372.28$24,480
Sep 2024355069.612.36$24,712
Aug 2024353075.632.06$26,697
Jul 2024333079.932.15$26,617
Jun 2024354078.082.63$27,640
May 2024346078.812.20$27,268
Apr 2024361084.451.66$30,486
Mar 2024352080.301.55$28,266
Feb 2024351076.091.78$26,708
Jan 2024181073.023.30$13,217
Dec 2023363071.262.61$25,867
Nov 2023357077.892.81$27,807
Oct 2023356085.443.09$30,417
Sep 2023358089.042.74$31,876
Aug 2023361080.522.67$29,068
Jul 2023182074.852.64$13,623
Jun 2023353068.962.26$24,343
May 2023355070.622.23$25,070
Apr 2023183078.122.24$14,296
Mar 2023178072.852.39$12,967
Feb 2023362075.112.47$27,190
Jan 2023359076.533.39$27,474
Dec 2022362076.415.73$27,660
Nov 2022361085.005.65$30,685
Oct 2022358087.185.86$31,210
Sep 2022179084.888.16$15,194
Aug 2022357094.529.13$33,744
Jul 20221770101.587.54$17,980
Jun 20221790115.097.98$20,601
May 20221750109.378.43$19,140
Apr 20223620104.226.84$37,728
Mar 20223580108.885.08$38,979
Feb 2022356091.054.86$32,414
Jan 2022353081.844.54$28,890
Dec 2021362071.323.90$25,818
Nov 2021357077.435.24$27,643
Oct 2021354079.795.71$28,246
Sep 2021350069.865.35$24,451
Aug 2021174066.024.22$11,487
Jul 2021508070.783.98$35,956
Jun 2021358069.493.38$24,877
May 2021356063.483.02$22,599
Apr 2021354060.362.76$21,367
Mar 2021357061.302.72$21,884
Feb 2021177057.805.55$10,231
Jan 2021716050.412.81$36,094
Dec 20200044.642.68$0
Nov 2020532038.772.71$20,626
Oct 2020356036.972.48$13,161
Sep 2020356037.091.99$13,204
Aug 2020179039.982.39$7,156
Jul 2020179038.371.83$6,868
Jun 2020346034.901.69$12,075
May 20200016.921.81$0
Apr 2020534014.751.80$7,877
Mar 2020362030.341.86$10,983
Feb 2020355049.881.98$17,707
Jan 2020353057.252.09$20,209
Dec 2019353059.012.30$20,831
Nov 2019366055.302.75$20,240
Oct 2019361053.472.42$19,303
Sep 2019362055.052.66$19,928
Aug 2019355053.112.30$18,854
Jul 2019351056.272.46$19,751
Jun 2019356052.782.49$18,790
May 2019358058.482.74$20,936
Apr 2019364062.632.75$22,797
Mar 2019179056.803.06$10,167
Feb 2019359050.852.79$18,255
Jan 2019359046.033.23$16,525
Dec 2018359046.594.19$16,726
Nov 2018349052.934.24$18,473
Oct 2018535061.443.40$32,870
Sep 2018355059.543.11$21,137
Aug 2018359059.403.07$21,325
Jul 2018339065.142.93$22,082
Jun 2018534060.183.08$32,136
May 2018179065.382.90$11,703
Apr 2018538063.842.90$34,346
Mar 2018356061.222.79$21,794
Feb 2018362061.782.77$22,364
Jan 2018549062.874.01$34,516
Dec 2017366057.272.92$20,961
Nov 2017358055.423.12$19,840
Oct 2017546049.292.98$26,912
Sep 2017357047.523.09$16,965
Aug 2017351045.373.00$15,925
Jul 2017505043.873.09$22,154
Jun 2017164042.493.09$6,968
May 2017716045.373.26$32,485
Apr 2017347047.933.21$16,632
Mar 2017356046.772.98$16,650
Feb 2017544050.452.95$27,445
Jan 2017386049.413.42$19,072
Dec 2016180048.763.72$8,777
Nov 2016374042.492.64$15,891
Oct 2016377046.193.09$17,414
Sep 2016361041.553.10$15,000
Aug 2016521041.442.92$21,590
Jul 2016356041.622.92$14,817
Jun 2016354045.352.69$16,054
May 2016167042.521.99$7,101
Apr 2016520036.561.99$19,011
Mar 2016340033.011.79$11,223
Feb 2016330026.472.06$8,735
Jan 2016511027.352.36$13,976
Dec 2015355032.362.00$11,488
Nov 2015343038.792.17$13,305
Oct 2015330043.552.43$14,372
Sep 2015326042.992.76$14,015
Aug 2015148040.162.87$5,944
Jul 2015508048.152.95$24,460
Jun 2015318056.152.88$17,856
May 2015343055.212.96$18,937
Apr 2015476049.822.71$23,714
Mar 2015362042.892.93$15,526
Feb 2015364044.662.98$16,256
Jan 20150043.433.10$0
Dec 2014534054.693.59$29,204
Nov 2014359070.464.25$25,295
Oct 2014359078.303.90$28,110
Sep 2014346086.164.05$29,811
Aug 2014350089.394.04$31,287
Jul 2014362096.564.18$34,955
Jun 2014538098.164.74$52,810
May 2014337094.734.73$31,924
Apr 2014361095.944.81$34,634
Mar 2014519095.895.06$49,767
Feb 2014350097.406.19$34,090
Jan 2014553090.404.86$49,991
Dec 2013180091.824.35$16,528
Nov 2013309088.853.74$27,455
Oct 2013362097.423.78$35,266
Sep 20135400104.113.72$56,219
Aug 20135200104.253.52$54,210
Jul 20133620102.523.72$37,112
Jun 2013361094.403.93$34,078
May 2013650094.834.15$61,640
Apr 2013179093.964.28$16,819
Mar 2013551093.623.91$51,585
Feb 2013467091.233.42$42,604
Jan 2013362091.603.42$33,159
Dec 2012711086.773.42$61,693
Nov 2012355086.953.62$30,867
Oct 2012181089.383.40$16,178
Sep 2012522094.672.92$49,418
Aug 2012701092.662.91$64,955
Jul 2012339085.133.02$28,859
Jun 2012538079.822.52$42,943
May 2012544091.612.49$49,836
Apr 20125330101.652.00$54,179
Mar 20125210105.052.22$54,731
Feb 20123650101.102.57$36,902
Jan 2012734098.092.73$71,998
Dec 2011367096.873.24$35,551
Nov 2011535095.723.31$51,210
Oct 2011357084.983.65$30,338
Sep 2011713083.623.99$59,621
Aug 2011721083.404.15$60,131
Jul 2011365094.144.52$34,361
Jun 2011722092.904.64$67,074
May 2011182098.134.40$17,860
Apr 20117200105.964.33$76,291
Mar 2011535096.364.06$51,553
Feb 2011545085.644.18$46,674
Jan 2011734086.504.59$63,491
Dec 2010364085.734.35$31,206
Nov 2010725080.843.80$58,609
Oct 2010724078.103.51$56,544
Sep 2010730072.633.98$53,020
Aug 2010533073.684.42$39,271
Jul 2010533072.554.74$38,669
Jun 2010712070.364.91$50,096
May 2010542071.124.24$38,547
Apr 2010709081.694.12$57,918
Mar 2010526078.394.39$41,233
Feb 2010363073.585.44$26,710
Jan 2010724074.365.96$53,837
Dec 2009180071.445.48$12,859
Nov 2009494074.593.75$36,847
Oct 2009523072.544.11$37,938
Sep 200953912565.543.06$35,709
Aug 200953012567.423.22$36,135
Jul 200971212561.133.46$43,958
Jun 200950912566.163.90$34,162
May 200969712554.743.93$38,645
Apr 200953912546.773.59$25,657
Mar 200990412542.144.06$38,602
Feb 200918412532.814.63$6,616
Jan 200974012535.865.37$27,208
Dec 200836412537.105.98$14,252
Nov 200891312555.496.86$51,520
Oct 200852712575.246.92$40,517
Sep 20081,451125101.767.88$148,638
Aug 2008703125114.228.48$81,357
Jul 2008894125131.0811.39$118,609
Jun 2008535125131.3313.03$71,891
May 2008720125123.1711.57$90,129
Apr 2008715125110.3110.45$80,179
Mar 2008362125101.909.66$38,096
Feb 20081,08212592.538.77$101,214
Jan 200853312590.388.21$49,198
Dec 200753912588.337.30$48,523
Nov 200772112591.677.29$67,006
Oct 200772012582.856.92$60,517
Sep 200754312575.846.24$41,962
Aug 200772412569.066.39$50,798
Jul 200770112570.906.39$50,499
Jun 20071,09012562.007.55$68,524
May 200753412558.747.85$32,348
Apr 20071,07912559.617.81$65,295
Mar 200772312556.927.30$42,066
Feb 200770412555.108.22$39,817
Jan 200784212550.306.73$43,193
Dec 200671912556.656.92$41,596
Nov 200692712554.207.62$51,196
Oct 200691512554.906.01$50,985
Sep 200673812560.085.04$44,969
Aug 200672512568.717.34$50,732
Jul 200671612569.376.34$50,462
Jun 200654512566.286.38$36,921
May 200690712566.016.42$60,674
Apr 200672312564.397.36$47,474
Mar 200690112556.707.08$51,972
Feb 200653012557.597.75$31,492
Jan 200691912560.598.93$56,799
Dec 20051,01912554.9413.42$57,661
Nov 200590112554.6910.59$50,599
Oct 200591512558.3413.80$55,106
Sep 200587612561.4512.08$55,340
Aug 200587612561.519.80$55,107
Jul 200588512555.697.84$50,266
Jun 200553312552.337.38$28,815
May 20051,07712545.226.65$49,533
Apr 200589912549.207.36$45,151
Mar 200590112550.377.15$46,278
Feb 20051,08512545.226.31$49,853
Jan 20051,44212543.166.32$63,027
Dec 200491212539.866.75$37,196
Nov 200418212545.286.33$9,032
Oct 20041,25012549.706.52$62,939
Sep 200489212543.245.28$39,231
Aug 20041,55112542.375.55$66,410
Jul 200489812538.286.08$35,136
Jun 200488312536.106.43$32,680
May 20041,24812537.486.49$47,587
Apr 20041,26412534.475.86$44,302
Mar 20041,44212534.365.53$50,238
Feb 200454512532.455.51$18,374
Jan 200490112532.036.30$29,646
Dec 20031,27012530.266.30$39,218
Nov 200372512528.804.60$21,454
Oct 20031,25612528.174.76$35,976
Sep 200371512526.314.75$19,405
Aug 20031,25812529.765.13$38,079
Jul 20031,60912529.415.17$47,967
Jun 200353512528.565.98$16,027
May 20031,62412526.595.97$43,929
Apr 20031,07812526.675.41$29,426
Mar 20031,42912531.146.10$45,261
Feb 20031,06112533.487.93$36,513
Jan 20031,094030.315.58$33,159
Dec 20021,08712526.914.85$29,858
Nov 20021,38712524.664.14$34,721
Oct 200288612526.464.23$23,972
Sep 20021,259027.443.64$34,547
Aug 2002891025.963.16$23,130
Jul 200217712524.583.06$4,733
Jun 20021,07312523.733.34$25,880
May 200272112524.663.58$18,228
Apr 20021,61612523.653.51$38,657
Mar 2002550022.003.10$12,100
Feb 20021,630018.222.38$29,699
Jan 20021,275017.172.38$21,892
Dec 200190312516.932.36$15,583
Nov 20011,453018.072.41$26,256
Oct 20011,094019.782.53$21,639
Sep 20011,97312524.262.25$48,146
Aug 200189212524.873.05$22,566
Jul 20011,43112523.933.20$34,643
Jun 20011,06912524.563.82$26,733
May 20011,56912525.524.31$40,579
Apr 20011,43812524.685.34$36,157
Mar 20012,35512524.545.38$58,464
Feb 20011,63912527.755.77$46,203
Jan 20012,00512527.478.40$56,127
Dec 20001,45612526.889.12$40,278
Nov 20002,00412532.215.66$65,256
Oct 20001,99012531.235.15$62,791
Sep 20002,08112531.875.19$66,970
Aug 20001,96312529.644.54$58,751
Jul 20001,78912528.534.09$51,551
Jun 20002,50412529.304.40$73,917
May 20002,33112527.263.68$64,003
Apr 20002,53412524.513.12$62,498
Mar 20001,79312528.422.86$51,315
Feb 20001,81512527.622.73$50,471
Jan 20001,63112525.272.48$41,525
Dec 19991,10412524.282.42$27,108
Nov 19991,44612523.192.43$33,837
Oct 19991,43212520.982.80$30,394
Sep 19991,61312521.752.62$35,410
Aug 19991,61412519.262.88$31,445
Jul 19991,770017.892.37$31,665
Jun 19991,12012515.942.36$18,148
May 19992,35112515.792.32$37,412
Apr 19991,82312515.102.21$27,803
Mar 19992,51512512.471.84$31,592
Feb 19991,6321259.981.82$16,515
Jan 19991,91812510.381.90$20,146
Dec 19982,5371259.201.77$23,562
Nov 19982,13612510.892.19$23,534
Oct 19982,33012512.421.97$29,185
Sep 19982,32812912.592.08$29,578
Aug 19983,05516111.301.91$34,829
Jul 19982,8467111.742.24$33,571
Jun 19983,006411.242.24$33,796
May 19982,67618412.622.21$34,177
Apr 19982,31228413.042.51$30,860
Mar 19983,26927112.802.31$42,469
Feb 19982,91929213.952.30$41,391
Jan 19984,00015414.702.15$59,132
Dec 19972,19526016.322.41$36,449
Nov 19973,44962918.193.09$64,680
Oct 19973,16076319.253.15$63,233
Sep 19972,95881417.742.95$54,880
Aug 19973,39385017.862.55$62,771
Jul 19973,20990317.582.25$58,443
Jun 19973,0621,06917.242.26$55,202
May 19972,89899918.972.31$57,281
Apr 19972,68193617.882.08$49,886
Mar 19972,47891918.951.94$48,740
Feb 19973,7011,29520.492.21$78,690
Jan 19974,0451,21223.483.54$99,267
Dec 19964,7811,07023.32$111,493
Nov 19964,3511,26521.97$95,591
Oct 19965,5921,61923.31$130,350
Sep 19965,1971,89622.22$115,477
Aug 19965,1831,71120.26$105,008
Jul 19965,2482,14119.55$102,598
Jun 19964,6902,23518.73$87,844
May 19966,8572,27919.43$133,232
Apr 19964,8673,21221.51$104,689
Mar 19967,4902,02719.38$145,156
Feb 19966,0941,69416.98$103,476
Jan 19968,0281,95217.07$137,038
Dec 19957,5742,42217.19$130,197
Nov 19957,8692,58616.00$125,904
Oct 19957,3752,44315.43$113,796
Sep 19957,8732,39116.18$127,385
Aug 19959,0693,30515.92$144,378
Jul 19958,2453,11215.24$125,654
Jun 19957,6622,68416.41$125,733
May 19957,4902,19817.56$131,524
Apr 19957,3862,30617.73$130,954
Mar 19958,7522,61216.44$143,883
Feb 19959,6632,91216.58$160,213
Jan 19959,1943,14015.92$146,368
Dec 19949,4733,00715.03$142,379
Nov 19949,8153,79515.90$156,059
Oct 199411,3114,07915.58$176,225
Sep 19949,0932,99815.29$139,032
Aug 199411,1413,42016.13$179,704
Jul 199411,9062,70617.56$209,069
Jun 199411,2763,10617.09$192,707
May 199412,0623,32815.88$191,545
Apr 199413,6023,61114.14$192,332
Mar 199414,5423,68012.46$181,193
Feb 199412,2403,14812.50$153,000
Jan 199414,3154,19112.66$181,228
Dec 199314,8634,73912.33$183,261
Nov 199313,3974,89414.49$194,123
Oct 199314,6964,87315.85$232,932
Sep 199311,4104,64815.03$171,492
Aug 199313,1595,83015.66$206,070
Jul 199311,9366,27115.46$184,531
Jun 199311,3085,92416.79$189,861
May 199311,0495,04017.68$195,346
Apr 19939,5925,34118.05$173,136
Mar 199311,8954,77318.14$215,775
Feb 19938,2623,84817.90$147,890
Jan 19939,3123,22616.93$157,652

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                  363 bbl  × $106.41 =    $38,627
Casinghead gas         0 Mcf  × $  3.05 =         $0

────────────────────────────────────────────────────
Month total                                  $38,627

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. 8A/O/66640 is the state's own key, not one this site invented.