WILLIAMS, MAUDE, ET AL -A-

Operated by HILCORP ENERGY COMPANY (P-5 386310) in the TOM OCONNOR (5900 SAND) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 2878District 02Field 90534875OilCasinghead gasSaveExport
Value, all time
$17.6 M
Jan 1993 – May 2026
Value, last 12 filed months
$0
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 27 leases and 362 wells, and the rule below applies to all of them.

Discovered
1961-03-01
as the register files it
Field class
Oil
the register's own label
Between wells
0 ft
minimum
From a lease line
150 ft
minimum

A drilling unit in this field needs at least 10 acres. The field rule took effect on 2020-10-20.

The Commission's schedule remark for this field reads: SPECIAL HORIZ. LANGUAGE (TAKE POINTS)

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
OilDisposition441,035 bbl$16,370,469
Casinghead gasProduction369,463 Mcf$1,204,328
Total$17,574,797

102,684 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 28.3977, -97.1246. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.9 miles.

28.39485, -97.12293 · 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
80.0%
12 of 15 wells
With a plug date
6.7%
1 of 15 wells
Median depth
5,925 ft
14 wells filed one
Completion to plug
5 months
median over 1 well

What the state filed about each well

On the RRC proration schedule
1280.0%
A plug date is filed
16.7%
BothOn the schedule and plugged. Neither fact cancels the other.
00.0%
NeitherNo plug date, and not on the schedule.
213.3%

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, 14 of 15 wells. Median 5,925 ft, with the middle half between 5,924 and 5,925 ft; the shallowest is 5,889 ft and the deepest 6,000 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, 14 of 15 wells, Mar 1979 – May 2023. This is the LAST completion filed on each wellbore, not the first — a well recompleted in 2019 counts once, in the 2010s.

Completions filed
Mar 1979 – May 2023
14 of 15 wells; 1 filed none
Plug dates filed
Jul 2023
1 of 15 wells; 14 filed none

Last completion to plug: a median of 5 months across the 1 well that filed both dates, with the middle half between 5 months and 5 months. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

15 wells

42-3910042921 L
42-391004702 G5,984 ftMay 2023Yes
42-39100430225,925 ftMar 2023Yes
42-391004691 L5,929 ftFeb 2023Jul 2023
42-391004713G6,000 ftApr 2021
42-39100427195,923 ftNov 2020Yes
42-3910042065,923 ftJan 2020Yes
42-39100448405,925 ftDec 2018Yes
42-39100432245,925 ftFeb 2016Yes
42-3910042820 L5,925 ftDec 2015Yes
42-39100426185,889 ftFeb 2015Yes
42-39100431235,925 ftApr 2009Yes
42-391004239 L5,925 ftApr 2008Yes
42-391004217 L5,925 ftJan 2001Yes
42-39100457675,914 ftMar 1979Yes

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 20250066.483.13$0
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 20240378.082.63$8
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 202312068.962.26$828
May 202371070.622.23$5,014
Apr 202362078.122.24$4,843
Mar 202371072.852.39$5,172
Feb 2023111075.112.47$8,337
Jan 2023157076.533.39$12,015
Dec 2022132076.415.73$10,086
Nov 2022149085.005.65$12,665
Oct 2022161087.185.86$14,036
Sep 2022178084.888.16$15,109
Aug 2022192094.529.13$18,148
Jul 20221670101.587.54$16,964
Jun 20221590115.097.98$18,299
May 20221550109.378.43$16,952
Apr 20221640104.226.84$17,092
Mar 20221660108.885.08$18,074
Feb 2022138091.054.86$12,565
Jan 2022153081.844.54$12,522
Dec 2021175071.323.90$12,481
Nov 2021171077.435.24$13,241
Oct 2021174179.795.71$13,889
Sep 2021171369.865.35$11,962
Aug 20212724866.024.22$18,160
Jul 2021213170.783.98$15,080
Jun 2021226769.493.38$15,728
May 2021326063.483.02$20,694
Apr 2021553060.362.76$33,379
Mar 2021514061.302.72$31,508
Feb 2021275057.805.55$15,895
Jan 2021523050.412.81$26,364
Dec 2020721044.642.68$32,185
Nov 20207891738.772.71$30,636
Oct 2020653036.972.48$24,141
Sep 2020764037.091.99$28,337
Aug 2020766039.982.39$30,625
Jul 20207293538.371.83$28,036
Jun 20206533734.901.69$22,852
May 20206431216.921.81$10,901
Apr 2020648014.751.80$9,558
Mar 2020607030.341.86$18,416
Feb 20201,0369049.881.98$51,854
Jan 202094127257.252.09$54,442
Dec 201960328459.012.30$36,237
Nov 20195735955.302.75$31,849
Oct 20197975753.472.42$42,753
Sep 2019851055.052.66$46,848
Aug 20199354453.112.30$49,759
Jul 201995515156.272.46$54,109
Jun 2019961052.782.49$50,722
May 2019625558.482.74$36,564
Apr 20193754062.632.75$23,596
Mar 2019406356.803.06$23,070
Feb 2019347050.852.79$17,645
Jan 2019413046.033.23$19,010
Dec 2018549646.594.19$25,603
Nov 2018538052.934.24$28,476
Oct 20187281761.443.40$44,786
Sep 2018782459.543.11$46,573
Aug 2018622559.403.07$36,962
Jul 20186223065.142.93$40,605
Jun 2018574060.183.08$34,543
May 2018819065.382.90$53,546
Apr 20181,075863.842.90$68,651
Mar 2018474261.222.79$29,024
Feb 2018498061.782.77$30,766
Jan 2018718062.874.01$45,141
Dec 2017772157.272.92$44,215
Nov 2017789455.423.12$43,739
Oct 2017894149.292.98$44,068
Sep 2017533047.523.09$25,328
Aug 2017549845.373.00$24,932
Jul 20174521843.873.09$19,885
Jun 20174535442.493.09$19,415
May 20175037645.373.26$23,069
Apr 2017468047.933.21$22,431
Mar 2017501046.772.98$23,432
Feb 20174552750.452.95$23,034
Jan 20175256649.413.42$26,166
Dec 20165076548.763.72$24,963
Nov 201660711242.492.64$26,088
Oct 201652011546.193.09$24,374
Sep 201649114641.553.10$20,854
Aug 201656912741.442.92$23,951
Jul 201655710741.622.92$23,495
Jun 201659410045.352.69$27,206
May 201669815242.521.99$29,982
Apr 201666216236.561.99$24,525
Mar 201661235233.011.79$20,834
Feb 201663416526.472.06$17,122
Jan 201672233827.352.36$20,546
Dec 201593620732.362.00$30,703
Nov 20151,06821238.792.17$41,887
Oct 201566123743.552.43$29,362
Sep 201566233742.992.76$29,389
Aug 201565523240.162.87$26,971
Jul 201571710648.152.95$34,836
Jun 20156898256.152.88$38,924
May 20156994855.212.96$38,734
Apr 20156566649.822.71$32,861
Mar 20157669642.892.93$33,135
Feb 20158897944.662.98$39,938
Jan 20159232043.433.10$40,148
Dec 20147631954.693.59$41,797
Nov 2014742970.464.25$52,320
Oct 2014782078.303.90$61,231
Sep 20147703786.164.05$66,493
Aug 20148633589.394.04$77,285
Jul 20148232496.564.18$79,569
Jun 20147501698.164.74$73,696
May 20141,0162194.734.73$96,345
Apr 201489710095.944.81$86,539
Mar 20149013395.895.06$86,564
Feb 20141,0544597.406.19$102,938
Jan 20141,463190.404.86$132,260
Dec 20131,504091.824.35$138,097
Nov 20131,360088.853.74$120,836
Oct 20131,322097.423.78$128,789
Sep 20131,1890104.113.72$123,787
Aug 20131,175365104.253.52$123,780
Jul 20131,192560102.523.72$124,286
Jun 20131,20934294.403.93$115,475
May 20131,35464594.834.15$131,076
Apr 20131,29044293.964.28$123,101
Mar 20131,48512293.623.91$139,503
Feb 20131,21224091.233.42$111,392
Jan 20131,37855491.603.42$128,119
Dec 20121,53153986.773.42$134,688
Nov 20121,03219286.953.62$90,428
Oct 20121,04814989.383.40$94,177
Sep 201285920994.672.92$81,931
Aug 20121,07835092.662.91$100,905
Jul 20121,16939085.133.02$100,695
Jun 20121,17538279.822.52$94,751
May 201267022191.612.49$61,929
Apr 2012631150101.652.00$64,441
Mar 2012611131105.052.22$64,477
Feb 2012612137101.102.57$62,225
Jan 201269121298.092.73$68,360
Dec 201178821896.873.24$77,040
Nov 201178518495.723.31$75,749
Oct 201181337684.983.65$70,461
Sep 201182756883.623.99$71,418
Aug 201187660283.404.15$75,556
Jul 201176762494.144.52$75,024
Jun 201178452092.904.64$75,246
May 201195854598.134.40$96,409
Apr 2011834457105.964.33$90,351
Mar 20111,01238796.364.06$99,087
Feb 201191878885.644.18$81,911
Jan 20116051,35986.504.59$58,569
Dec 201061366785.734.35$55,452
Nov 201062527280.843.80$51,557
Oct 201087734978.103.51$69,718
Sep 201096928772.633.98$71,521
Aug 201099743873.684.42$75,395
Jul 20109793672.554.74$71,197
Jun 20101,29216370.364.91$91,706
May 20101,35049171.124.24$98,091
Apr 20101,15144481.694.12$95,856
Mar 20101,28034078.394.39$101,831
Feb 20101,02342473.585.44$77,580
Jan 20101,08524774.365.96$82,154
Dec 20091,3141,57271.445.48$102,493
Nov 20091,3311,49274.593.75$104,877
Oct 20091,3621,43972.544.11$104,714
Sep 20091,1741,16265.543.06$80,505
Aug 20091,0451,22267.423.22$74,387
Jul 200975881661.133.46$49,164
Jun 20096321,21666.163.90$46,549
May 20099491,34154.743.93$57,213
Apr 20099031,29646.773.59$46,883
Mar 20099451,30842.144.06$45,131
Feb 20091,0081,20632.814.63$38,660
Jan 20099201,11635.865.37$38,985
Dec 200890086637.105.98$38,566
Nov 200873473255.496.86$45,751
Oct 200863959575.246.92$52,197
Sep 2008693710101.767.88$76,112
Aug 20089951,434114.228.48$125,814
Jul 20088981,049131.0811.39$129,657
Jun 20088781,080131.3313.03$129,383
May 20088871,013123.1711.57$120,977
Apr 2008862471110.3110.45$100,011
Mar 2008767473101.909.66$82,728
Feb 200840546092.538.77$41,509
Jan 200841359390.388.21$42,193
Dec 200740856188.337.30$40,135
Nov 200723263591.677.29$25,898
Oct 200719247182.856.92$19,167
Sep 200725757775.846.24$23,094
Aug 200727182369.066.39$23,973
Jul 200726980870.906.39$24,234
Jun 200749684862.007.55$37,153
May 200747972458.747.85$33,817
Apr 200742459359.617.81$29,903
Mar 200734955156.927.30$23,888
Feb 200731150455.108.22$21,277
Jan 200734387150.306.73$23,112
Dec 200634582256.656.92$25,231
Nov 200637469254.207.62$25,542
Oct 200636361854.906.01$23,645
Sep 200651964160.085.04$34,410
Aug 20065781,13568.717.34$48,045
Jul 20066822,78569.376.34$64,975
Jun 200663760766.286.38$46,095
May 200674713566.016.42$50,177
Apr 200680781564.397.36$57,962
Mar 200667616856.707.08$39,519
Feb 200677870057.597.75$50,231
Jan 200695762160.598.93$63,532
Dec 200572061054.9413.42$47,740
Nov 20056551,68854.6910.59$53,695
Oct 200559440758.3413.80$40,269
Sep 200549674761.4512.08$39,502
Aug 200552899261.519.80$42,196
Jul 20056222,21555.697.84$52,013
Jun 20055721,87452.337.38$43,765
May 20057451,18745.226.65$41,584
Apr 20056862,51149.207.36$52,233
Mar 20056571,38250.377.15$42,981
Feb 20057051,45145.226.31$41,039
Jan 20058031,97143.166.32$47,119
Dec 20041,2803,44539.866.75$74,278
Nov 20041,4022,91245.286.33$81,917
Oct 20041,4582,83549.706.52$90,933
Sep 20041,2193,54543.245.28$71,441
Aug 20041,2251,57042.375.55$60,618
Jul 20041,1112,39038.286.08$57,070
Jun 20041,0882,45436.106.43$55,063
May 20041,1122,65837.486.49$58,940
Apr 20041,2411,42934.475.86$51,149
Mar 20049041,18934.365.53$37,637
Feb 20048992,34932.455.51$42,115
Jan 20041,0121,11532.036.30$39,438
Dec 20031,1862,44730.266.30$51,308
Nov 20031,4153,34628.804.60$56,127
Oct 20032,0702,89228.174.76$72,077
Sep 20031,7892,94226.314.75$61,041
Aug 20031,9384,75029.765.13$82,041
Jul 20031,1835,50929.415.17$63,278
Jun 20031,31011828.565.98$38,120
May 20031,61445026.595.97$45,604
Apr 20031,1732,12626.675.41$42,780
Mar 20031,2402,49531.146.10$53,823
Feb 20031,01881933.487.93$40,574
Jan 20031,2551,78830.315.58$48,020
Dec 20021,2361,79426.914.85$41,968
Nov 20021,4052,31324.664.14$44,216
Oct 20021,3802,76226.464.23$48,196
Sep 20021,4892,07027.443.64$48,383
Aug 20021,1711,58725.963.16$35,421
Jul 20021,2831,39224.583.06$35,798
Jun 20021,2182,26423.733.34$36,461
May 20021,42272724.663.58$37,672
Apr 20021,0281,40123.653.51$29,233
Mar 200282448522.003.10$19,633
Feb 20027307818.222.38$13,486
Jan 20021,07093117.172.38$20,584
Dec 20011,0622,43316.932.36$23,732
Nov 20011,2071,37318.072.41$25,113
Oct 200192198119.782.53$20,698
Sep 200169557924.262.25$18,164
Aug 20017841,36724.873.05$23,672
Jul 200170738123.933.20$18,137
Jun 200169388824.563.82$20,416
May 20019701,18625.524.31$29,863
Apr 200195834324.685.34$25,473
Mar 20018971,32324.545.38$29,125
Feb 20011,12660827.755.77$34,753
Jan 20011,0611,64927.478.40$42,995
Dec 20001,3121,92826.889.12$52,855
Nov 20001,0851,07632.215.66$41,036
Oct 20001,02982531.235.15$36,381
Sep 20009581,91031.875.19$40,438
Aug 20001,0691,84929.644.54$40,081
Jul 20001,0862,26328.534.09$40,239
Jun 20001,1122,41229.304.40$43,188
May 20001,2511,05227.263.68$37,973
Apr 20001,7761,39724.513.12$47,883
Mar 20001,37483628.422.86$41,440
Feb 20001,35987927.622.73$39,932
Jan 20001,9491,51525.272.48$53,009
Dec 19991,7872,05924.282.42$48,379
Nov 19991,50878023.192.43$36,869
Oct 19991,56360120.982.80$34,477
Sep 19991,61739821.752.62$36,212
Aug 19991,5721,39619.262.88$34,291
Jul 19991,5451,26717.892.37$30,646
Jun 19991,5681,43415.942.36$28,381
May 19991,5651,71215.792.32$28,685
Apr 19991,2751,09015.102.21$21,659
Mar 19991,1231,22212.471.84$16,250
Feb 19991,2561,5759.981.82$15,398
Jan 19991,48599610.381.90$17,307
Dec 19981,5092,1969.201.77$17,777
Nov 19981,4531,87410.892.19$19,919
Oct 19981,4672,12112.421.97$22,397
Sep 19981,2515,31712.592.08$26,823
Aug 19981,5975,30711.301.91$28,168
Jul 19981,6225,09111.742.24$30,432
Jun 19981,56491411.242.24$19,624
May 19981,7131,53812.622.21$25,011
Apr 19981,75776013.042.51$24,815
Mar 19982,9671,21712.802.31$40,788
Feb 19983,3123,19713.952.30$53,553
Jan 19983,8555,23814.702.15$67,955
Dec 19971,9325,10816.322.41$43,846
Nov 19971,2321,48918.193.09$27,009
Oct 19971,0732,43119.253.15$28,312
Sep 19971,1751,29717.742.95$24,677
Aug 19971,1111,26517.862.55$23,074
Jul 19971,7112,86917.582.25$36,526
Jun 19971,0353,78317.242.26$26,382
May 19971,2354,12118.972.31$32,941
Apr 19971,5691,66317.882.08$31,517
Mar 19971,6481,86818.951.94$34,852
Feb 19971,4541,81620.492.21$33,798
Jan 19971,6581,32023.483.54$43,602
Dec 19961,5072,14523.32$35,143
Nov 19961,2742,77821.97$27,990
Oct 19961,3452,86123.31$31,352
Sep 19961,3891,07322.22$30,864
Aug 19961,52766520.26$30,937
Jul 19961,4911,47719.55$29,149
Jun 19961,2971,80518.73$24,293
May 19961,3181,35919.43$25,609
Apr 19961,2861,37521.51$27,662
Mar 19961,8652,57919.38$36,144
Feb 19961,9772,57916.98$33,569
Jan 19962,3501,85317.07$40,115
Dec 19952,5571,77417.19$43,955
Nov 19952,5961,72716.00$41,536
Oct 19952,6921,62815.43$41,538
Sep 19952,6451,73716.18$42,796
Aug 19952,6983,04715.92$42,952
Jul 19953,4781,95615.24$53,005
Jun 19952,5312,47016.41$41,534
May 19952,4022,00317.56$42,179
Apr 19952,6612,88517.73$47,180
Mar 19952,1451,17516.44$35,264
Feb 19951,87579516.58$31,088
Jan 19952,51469115.92$40,023
Dec 19943,30161915.03$49,614
Nov 19942,8411,01815.90$45,172
Oct 19943,5081,10715.58$54,655
Sep 19943,46983815.29$53,041
Aug 19943,39928016.13$54,826
Jul 19943,7562,01117.56$65,955
Jun 19943,5162,25717.09$60,088
May 19943,3501,57215.88$53,198
Apr 19943,6951,85214.14$52,247
Mar 19943,8453,11012.46$47,909
Feb 19943,5762,09812.50$44,700
Jan 19944,0131,50712.66$50,805
Dec 19934,2582,01412.33$52,501
Nov 19934,9571,68014.49$71,827
Oct 19934,7072,17015.85$74,606
Sep 19935,20672315.03$78,246
Aug 19934,8182,90815.66$75,450
Jul 19935,2673,42615.46$81,428
Jun 19935,0704,26016.79$85,125
May 19935,9105,41017.68$104,489
Apr 19936,0416,30218.05$109,040
Mar 19936,9205,51518.14$125,529
Feb 19935,0703,64617.90$90,753
Jan 19935,8521,92416.93$99,074

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 2024 — as filed, then multipliedworked
Oil                    0 bbl  × $ 78.08 =         $0
Casinghead gas         3 Mcf  × $  2.63 =         $8

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Month total                                       $8

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. 02/O/2878 is the state's own key, not one this site invented.