WATERFIELD "C"

Operated by UNIT PETROLEUM COMPANY (P-5 877099) in the MENDOTA, NW. (GRANITE WASH, SW.) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 5389District 10Field 60462550OilCasinghead gasSaveExport
Value, all time
$5.7 M
Jan 1993 – May 2026
Value, last 12 filed months
$465
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 93 leases and 143 wells, and the rule below applies to all of them.

Discovered
1976-04-01
as the register files it
Field class
Oil and gas
the register's own label
Between wells
1,200 ft
minimum
From a lease line
467 ft
minimum

A drilling unit in this field needs at least 80 acres. The field rule took effect on 1984-02-27.

The Commission's schedule remark for this field reads: WASH) FIELD EFFECTIVE 12/05/17.

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
OilDisposition31,087 bbl$1,813,099
Casinghead gasProduction819,749 Mcf$3,915,246
Total$5,728,345

116,114 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 (6)

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 35.8904, -100.5745. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.7 miles.

35.89137, -100.57520 · 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
83.3%
5 of 6 wells
With a plug date
50.0%
3 of 6 wells
Median depth
11,200 ft
6 wells filed one
Completion to plug
42.6 years
median over 3 wells

What the state filed about each well

On the RRC proration schedule
583.3%
A plug date is filed
350.0%
BothOn the schedule and plugged. Neither fact cancels the other.
350.0%
NeitherNo plug date, and not on the schedule.
116.7%

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 10,530 and 11,232 ft, median 11,200 ft, over the 6 wells that filed a depth.

Completions filed
Aug 1980 – Jan 2010
6 of 6 wells
Plug dates filed
Apr 2023 – Aug 2025
3 of 6 wells; 3 filed none

Last completion to plug: a median of 42.6 years across the 3 wells that filed both dates, with the middle half between 29.3 years and 43.8 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

6 wells

42-39331974811,200 ftJan 2010Yes
42-39331969711,200 ftOct 2009
42-39332087911,221 ftMay 2008Yes
42-39331898611,232 ftApr 2007Apr 2023Yes
42-39330875410,600 ftJan 1983Aug 2025Yes
42-39330778310,530 ftAug 1980Jun 2025Yes

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 20250063.933.01$0
Jul 20250066.743.32$0
Jun 20257066.483.13$465
May 20250060.553.23$0
Apr 20250062.363.54$0
Mar 20250067.704.27$0
Feb 20250070.884.34$0
Jan 20250074.324.28$0
Dec 20240068.993.12$0
Nov 20240069.052.20$0
Oct 20240071.372.28$0
Sep 20240069.612.36$0
Aug 20240075.632.06$0
Jul 20240079.932.15$0
Jun 20240078.082.63$0
May 20240078.812.20$0
Apr 20240084.451.66$0
Mar 20240080.301.55$0
Feb 20240076.091.78$0
Jan 20240073.023.30$0
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 20230072.852.39$0
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 20200016.921.81$0
Apr 20200014.751.80$0
Mar 20200030.341.86$0
Feb 20200049.881.98$0
Jan 20200057.252.09$0
Dec 20190059.012.30$0
Nov 20190055.302.75$0
Oct 20190053.472.42$0
Sep 20190055.052.66$0
Aug 20190053.112.30$0
Jul 2019145056.272.46$8,159
Jun 20190052.782.49$0
May 20190058.482.74$0
Apr 20190062.632.75$0
Mar 2019020856.803.06$637
Feb 2019023250.852.79$648
Jan 2019026146.033.23$843
Dec 2018026546.594.19$1,109
Nov 2018025652.934.24$1,085
Oct 2018027161.443.40$921
Sep 2018026659.543.11$827
Aug 2018028059.403.07$859
Jul 2018027565.142.93$806
Jun 2018027560.183.08$846
May 2018028265.382.90$818
Apr 2018027463.842.90$795
Mar 2018028961.222.79$805
Feb 2018025961.782.77$716
Jan 2018030362.874.01$1,215
Dec 2017031857.272.92$929
Nov 2017031555.423.12$982
Oct 2017034549.292.98$1,029
Sep 2017034447.523.09$1,062
Aug 2017035545.373.00$1,067
Jul 2017036043.873.09$1,111
Jun 2017035242.493.09$1,087
May 2017037145.373.26$1,211
Apr 2017036047.933.21$1,156
Mar 201716840846.772.98$9,075
Feb 2017038450.452.95$1,134
Jan 2017038649.413.42$1,320
Dec 2016044448.763.72$1,653
Nov 2016041042.492.64$1,084
Oct 2016042146.193.09$1,301
Sep 2016042341.553.10$1,312
Aug 201617244341.442.92$8,423
Jul 2016044941.622.92$1,313
Jun 2016045845.352.69$1,230
May 2016656742.521.99$1,384
Apr 2016057036.561.99$1,135
Mar 2016048033.011.79$861
Feb 2016048426.472.06$999
Jan 2016057627.352.36$1,362
Dec 2015043832.362.00$877
Nov 2015053438.792.17$1,157
Oct 2015056743.552.43$1,376
Sep 201517758942.992.76$9,234
Aug 201517866540.162.87$9,059
Jul 20151545848.152.95$2,071
Jun 2015034356.152.88$989
May 2015036455.212.96$1,076
Apr 2015035249.822.71$953
Mar 2015036242.892.93$1,062
Feb 2015032544.662.98$967
Jan 2015034343.433.10$1,064
Dec 2014035454.693.59$1,271
Nov 2014034570.464.25$1,467
Oct 2014031278.303.90$1,217
Sep 2014015386.164.05$619
Aug 2014088589.394.04$3,571
Jul 2014084996.564.18$3,548
Jun 2014080298.164.74$3,799
May 2014086994.734.73$4,107
Apr 2014081495.944.81$3,915
Mar 2014084995.895.06$4,293
Feb 2014077397.406.19$4,786
Jan 201416886790.404.86$19,401
Dec 2013083791.824.35$3,645
Nov 2013081988.853.74$3,062
Oct 2013089897.423.78$3,394
Sep 20130862104.113.72$3,205
Aug 20130956104.253.52$3,368
Jul 20130995102.523.72$3,699
Jun 2013096194.403.93$3,780
May 2013099694.834.15$4,132
Apr 2013095393.964.28$4,081
Mar 201301,01493.623.91$3,968
Feb 2013091491.233.42$3,126
Jan 201301,02191.603.42$3,492
Dec 2012094186.773.42$3,218
Nov 2012096886.953.62$3,509
Oct 201201,11289.383.40$3,780
Sep 201201,30794.672.92$3,814
Aug 20121831,50192.662.91$21,322
Jul 201201,30085.133.02$3,927
Jun 201201,26779.822.52$3,192
May 201201,32491.612.49$3,295
Apr 201201,417101.652.00$2,829
Mar 201201,269105.052.22$2,820
Feb 201201,495101.102.57$3,843
Jan 201201,75198.092.73$4,787
Dec 2011039996.873.24$1,293
Nov 2011034395.723.31$1,136
Oct 201102584.983.65$91
Sep 2011057283.623.99$2,280
Aug 2011059083.404.15$2,448
Jul 2011053794.144.52$2,426
Jun 201101,31092.904.64$6,078
May 201101,77198.134.40$7,801
Apr 201101,640105.964.33$7,107
Mar 201119142696.364.06$20,133
Feb 201116879785.644.18$17,719
Jan 201101,59486.504.59$7,315
Dec 201001,54185.734.35$6,700
Nov 201001,61580.843.80$6,129
Oct 201001,72478.103.51$6,049
Sep 201001,76072.633.98$7,004
Aug 201001,61173.684.42$7,120
Jul 2010491,62872.554.74$11,266
Jun 20105191,68070.364.91$44,766
May 20101693,73171.124.24$27,821
Apr 201005,97881.694.12$24,645
Mar 20107116,13478.394.39$82,655
Feb 20103725,97573.585.44$59,890
Jan 20101776,46074.365.96$51,690
Dec 20091747,85071.445.48$55,478
Nov 20097039,69774.593.75$88,815
Oct 20097448,69972.544.11$89,725
Sep 200950710,17765.543.06$64,419
Aug 200971910,18267.423.22$81,246
Jul 200951810,87861.133.46$69,352
Jun 200987110,71766.163.90$99,368
May 200952910,96754.743.93$72,011
Apr 200957610,82746.773.59$65,781
Mar 200992110,73342.144.06$82,376
Feb 200955610,98432.814.63$69,131
Jan 20091,44512,01535.865.37$116,350
Dec 200838713,14237.105.98$92,909
Nov 200854114,74355.496.86$131,162
Oct 200871517,47575.246.92$174,758
Sep 20081,65116,802101.767.88$300,357
Aug 20081,09116,089114.228.48$261,097
Jul 20081846,844131.0811.39$102,068
Jun 20081835,949131.3313.03$101,565
May 200806,542123.1711.57$75,719
Apr 20083387,079110.3110.45$111,295
Mar 20083728,070101.909.66$115,896
Feb 20081987,84192.538.77$87,091
Jan 20081929,00790.388.21$91,262
Dec 20075439,70488.337.30$118,822
Nov 200736910,35291.677.29$109,310
Oct 200756111,28782.856.92$124,607
Sep 20071,13014,78875.846.24$178,038
Aug 200718511,77169.066.39$87,969
Jul 20071866,09070.906.39$52,090
Jun 20071919,97562.007.55$87,138
May 200777310,93258.747.85$131,182
Apr 200738710,15059.617.81$102,292
Mar 200701,80356.927.30$13,165
Feb 200701,42855.108.22$11,732
Jan 200701,71050.306.73$11,503
Dec 200601,95256.656.92$13,505
Nov 200601,76454.207.62$13,437
Oct 20061911,29054.906.01$18,244
Sep 20061942,10860.085.04$22,274
Aug 200602,23768.717.34$16,419
Jul 20061891,75669.376.34$24,249
Jun 200602,41966.286.38$15,443
May 200601,90366.016.42$12,227
Apr 200602,00664.397.36$14,765
Mar 200602,20956.707.08$15,646
Feb 20061971,97357.597.75$26,638
Jan 200602,28760.598.93$20,431
Dec 200502,18254.9413.42$29,272
Nov 200502,04154.6910.59$21,611
Oct 200502,32758.3413.80$32,103
Sep 200502,30261.4512.08$27,806
Aug 200502,29361.519.80$22,464
Jul 200502,47055.697.84$19,374
Jun 20051912,38152.337.38$27,569
May 200502,52245.226.65$16,774
Apr 20051792,54049.207.36$27,502
Mar 200502,53950.377.15$18,166
Feb 200502,12745.226.31$13,425
Jan 200502,51643.166.32$15,907
Dec 20041892,31139.866.75$23,135
Nov 200402,47045.286.33$15,636
Oct 200402,91249.706.52$18,972
Sep 200402,78143.245.28$14,695
Aug 20041742,89042.375.55$23,414
Jul 20041742,26038.286.08$20,411
Jun 200402,46636.106.43$15,864
May 200402,36037.486.49$15,327
Apr 200402,03234.475.86$11,904
Mar 200402,08834.365.53$11,547
Feb 20041861,96932.455.51$16,884
Jan 200402,26032.036.30$14,237
Dec 200301,32430.266.30$8,343
Nov 200301,58528.804.60$7,283
Oct 200302,02728.174.76$9,648
Sep 200302,03426.314.75$9,660
Aug 200302,05829.765.13$10,557
Jul 200301,23129.415.17$6,365
Jun 200317981528.565.98$9,988
May 20031792,32326.595.97$18,634
Apr 200302,35526.675.41$12,734
Mar 200302,44331.146.10$14,893
Feb 200302,24433.487.93$17,786
Jan 20031932,52330.315.58$19,933
Dec 20021692,43826.914.85$16,381
Nov 200202,40224.664.14$9,937
Oct 200202,33426.464.23$9,871
Sep 200202,06627.443.64$7,510
Aug 20021912,53025.963.16$12,964
Jul 200202,64924.583.06$8,111
Jun 200202,25023.733.34$7,511
May 200202,63024.663.58$9,426
Apr 200202,51523.653.51$8,833
Mar 200202,54222.003.10$7,887
Feb 20021792,35618.222.38$8,858
Jan 200202,31017.172.38$5,488
Dec 20011662,08316.932.36$7,735
Nov 200102,48818.072.41$5,985
Oct 20011832,74219.782.53$10,554
Sep 200102,00524.262.25$4,514
Aug 200102,32224.873.05$7,089
Jul 200102,69423.933.20$8,613
Jun 20011562,63924.563.82$13,923
May 20011842,58725.524.31$15,839
Apr 200102,04924.685.34$10,932
Mar 200102,54124.545.38$13,662
Feb 200102,32227.755.77$13,391
Jan 200102,91727.478.40$24,499
Dec 20001852,94926.889.12$31,875
Nov 200002,91532.215.66$16,493
Oct 200001,84031.235.15$9,468
Sep 200001,99431.875.19$10,342
Aug 20001812,14529.644.54$15,105
Jul 200002,11628.534.09$8,654
Jun 200001,93329.304.40$8,500
May 200001,87627.263.68$6,903
Apr 20003571,67424.513.12$13,966
Mar 200001,95928.422.86$5,602
Feb 200001,87827.622.73$5,120
Jan 200002,16225.272.48$5,363
Dec 199901,64424.282.42$3,985
Nov 19991842,00123.192.43$9,137
Oct 199901,82320.982.80$5,111
Sep 199901,90321.752.62$4,984
Aug 19991802,10619.262.88$9,523
Jul 199901,82617.892.37$4,332
Jun 199901,83715.942.36$4,339
May 199901,89915.792.32$4,408
Apr 199901,77915.102.21$3,928
Mar 19991821,75012.471.84$5,487
Feb 199901,6269.981.82$2,956
Jan 199901,35610.381.90$2,576
Dec 19981841,1159.201.77$3,670
Nov 1998087210.892.19$1,906
Oct 199801,06512.421.97$2,097
Sep 1998039412.592.08$821
Aug 199801,60511.301.91$3,061
Jul 199801,47611.742.24$3,302
Jun 199821,43411.242.24$3,231
May 199801,82212.622.21$4,020
Apr 19981911,73213.042.51$6,830
Mar 199801,42512.802.31$3,291
Feb 199801,56213.952.30$3,591
Jan 199802,00014.702.15$4,310
Dec 19971681,87916.322.41$7,272
Nov 199701,90918.193.09$5,895
Oct 199701,73819.253.15$5,474
Sep 199701,67417.742.95$4,946
Aug 199701,82517.862.55$4,662
Jul 199701,83517.582.25$4,123
Jun 19971811,77017.242.26$7,116
May 199701,93618.972.31$4,469
Apr 199701,90117.882.08$3,959
Mar 199701,43218.951.94$2,777
Feb 199701,12820.492.21$2,488
Jan 19971941,55023.483.54$10,042
Dec 199601,96723.32$0
Nov 199601,75321.97$0
Oct 19961882,21923.31$4,382
Sep 199602,00922.22$0
Aug 199602,26220.26$0
Jul 199602,09819.55$0
Jun 19961772,24218.73$3,315
May 199602,09619.43$0
Apr 199602,18821.51$0
Mar 199602,16419.38$0
Feb 19965301,75716.98$8,999
Jan 199601,25417.07$0
Dec 199502,14117.19$0
Nov 199502,44116.00$0
Oct 199501,58315.43$0
Sep 199502,32216.18$0
Aug 199502,76915.92$0
Jul 199502,64915.24$0
Jun 19951812,09416.41$2,970
May 199503,27317.56$0
Apr 19953682,58617.73$6,525
Mar 19953711,91916.44$6,099
Feb 199503,02616.58$0
Jan 199501,49415.92$0
Dec 199401,57815.03$0
Nov 199402,38615.90$0
Oct 199402,66515.58$0
Sep 199402,51415.29$0
Aug 19941782,70416.13$2,871
Jul 1994202,45217.56$351
Jun 199402,59117.09$0
May 19941772,31715.88$2,811
Apr 199402,66014.14$0
Mar 199402,60012.46$0
Feb 199402,74112.50$0
Jan 199402,80112.66$0
Dec 199303,01112.33$0
Nov 199302,98514.49$0
Oct 19931772,98615.85$2,805
Sep 199302,74415.03$0
Aug 19933273,14315.66$5,121
Jul 19931813,11515.46$2,798
Jun 199303,01516.79$0
May 199302,82517.68$0
Apr 19933653,10118.05$6,588
Mar 199303,54218.14$0
Feb 199301,69017.90$0
Jan 199301,64216.93$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.

Jun 2025 — as filed, then multipliedworked
Oil                    7 bbl  × $ 66.48 =       $465
Casinghead gas         0 Mcf  × $  3.13 =         $0

────────────────────────────────────────────────────
Month total                                     $465

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. 10/O/5389 is the state's own key, not one this site invented.