UNOCAL '940'

Operated by YATES ENERGY CORPORATION (P-5 946195) in the ROXANNE K (ELLENBURGER) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 66922District 8AField 78742400OilCasinghead gasSave
Value, all time
$5.9 M
Jan 1993 – May 2026
Value, last 12 filed months
$66 k
at the published price for each month
Months reported
401
no gaps in the span
Streams
2
oil, casinghead gas

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
OilDisposition172,820 bbl$5,915,555
Casinghead gasProduction5,875 Mcf$25,953
Total$5,941,508

352 Mcf of this lease's gas, across 21 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 (2)

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 33.0785, -101.3128. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.2 miles.

33.07852, -101.31283 · 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
50.0%
1 of 2 wells
With a plug date
0.0%
0 of 2 wells
Median depth
8,122 ft
2 wells filed one
Completion to plug
no well filed both dates

What the state filed about each well

On the RRC proration schedule
150.0%
A plug date is filed
00.0%
BothOn the schedule and plugged. Neither fact cancels the other.
00.0%
NeitherNo plug date, and not on the schedule.
150.0%

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

Between 8,111 and 8,133 ft, median 8,122 ft, over the 2 wells that filed a depth.

Completions filed
Dec 1994 – May 1997
2 of 2 wells

2 wells

42-1693344628,111 ftMay 1997
42-1693312918,133 ftDec 1994Yes

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 202643098.932.87$4,254
Mar 202665089.753.15$5,834
Feb 202665063.503.75$4,128
Jan 2026132059.138.00$7,805
Dec 202567056.664.41$3,796
Nov 20250058.593.93$0
Oct 20250059.383.30$0
Sep 20250062.743.08$0
Aug 20250063.933.01$0
Jul 2025244066.743.32$16,285
Jun 2025358066.483.13$23,800
May 2025162060.553.23$9,809
Apr 2025340062.363.54$21,202
Mar 2025165067.704.27$11,171
Feb 20250070.884.34$0
Jan 2025126074.324.28$9,364
Dec 2024106068.993.12$7,313
Nov 202497069.052.20$6,698
Oct 2024200071.372.28$14,274
Sep 202499069.612.36$6,891
Aug 2024153075.632.06$11,571
Jul 202476079.932.15$6,075
Jun 202470078.082.63$5,466
May 2024209078.812.20$16,471
Apr 202498084.451.66$8,276
Mar 202476080.301.55$6,103
Feb 2024203076.091.78$15,446
Jan 2024106073.023.30$7,740
Dec 2023103071.262.61$7,340
Nov 2023196077.892.81$15,266
Oct 202397085.443.09$8,288
Sep 2023168089.042.74$14,959
Aug 20230080.522.67$0
Jul 20230074.852.64$0
Jun 20230068.962.26$0
May 202375070.622.23$5,297
Apr 2023102078.122.24$7,968
Mar 2023101072.852.39$7,358
Feb 2023218075.112.47$16,374
Jan 2023113076.533.39$8,648
Dec 2022111076.415.73$8,482
Nov 2022104085.005.65$8,840
Oct 202294087.185.86$8,195
Sep 2022196084.888.16$16,636
Aug 202299094.529.13$9,357
Jul 20221800101.587.54$18,284
Jun 20221030115.097.98$11,854
May 2022960109.378.43$10,500
Apr 20221780104.226.84$18,551
Mar 2022950108.885.08$10,344
Feb 2022187091.054.86$17,026
Jan 2022111081.844.54$9,084
Dec 2021198071.323.90$14,121
Nov 2021105077.435.24$8,130
Oct 2021212079.795.71$16,915
Sep 20210069.865.35$0
Aug 2021115166.024.22$7,597
Jul 2021110170.783.98$7,790
Jun 202157169.493.38$3,964
May 2021112163.483.02$7,113
Apr 202147160.362.76$2,840
Mar 2021118161.302.72$7,236
Feb 202159157.805.55$3,416
Jan 2021115150.412.81$5,800
Dec 202059144.642.68$2,636
Nov 2020114138.772.71$4,422
Oct 202055136.972.48$2,036
Sep 2020118137.091.99$4,379
Aug 202059139.982.39$2,361
Jul 2020111138.371.83$4,261
Jun 2020111134.901.69$3,876
May 20200116.921.81$2
Apr 202059114.751.80$872
Mar 202060130.341.86$1,822
Feb 202059149.881.98$2,945
Jan 202055157.252.09$3,151
Dec 2019108159.012.30$6,375
Nov 201961155.302.75$3,376
Oct 201955153.472.42$2,943
Sep 2019111155.052.66$6,113
Aug 201953153.112.30$2,817
Jul 2019112156.272.46$6,305
Jun 201958152.782.49$3,064
May 2019111158.482.74$6,494
Apr 201956162.632.75$3,510
Mar 2019108156.803.06$6,137
Feb 201960150.852.79$3,054
Jan 2019118146.033.23$5,435
Dec 2018121146.594.19$5,642
Nov 201852152.934.24$2,757
Oct 2018117161.443.40$7,192
Sep 2018128159.543.11$7,624
Aug 201865159.403.07$3,864
Jul 2018129165.142.93$8,406
Jun 201865160.183.08$3,915
May 2018130165.382.90$8,502
Apr 201854163.842.90$3,450
Mar 2018124161.222.79$7,594
Feb 2018103161.782.77$6,366
Jan 201822162.874.01$1,387
Dec 201750157.272.92$2,866
Nov 201773155.423.12$4,049
Oct 201752149.292.98$2,566
Sep 201741147.523.09$1,951
Aug 201750145.373.00$2,272
Jul 201770143.873.09$3,074
Jun 201726142.493.09$1,108
May 201770145.373.26$3,179
Apr 201767147.933.21$3,215
Mar 201736146.772.98$1,687
Feb 201780150.452.95$4,039
Jan 2017161149.413.42$7,958
Dec 201669148.763.72$3,368
Nov 201642142.492.64$1,787
Oct 201691146.193.09$4,206
Sep 201652141.553.10$2,164
Aug 201651141.442.92$2,116
Jul 2016104141.622.92$4,331
Jun 201686145.352.69$3,903
May 201690142.521.99$3,829
Apr 201620136.561.99$733
Mar 2016101133.011.79$3,336
Feb 2016100126.472.06$2,649
Jan 2016118127.352.36$3,230
Dec 201557132.362.00$1,847
Nov 2015115138.792.17$4,463
Oct 201592143.552.43$4,009
Sep 201578142.992.76$3,356
Aug 201598140.162.87$3,939
Jul 201535148.152.95$1,688
Jun 201587156.152.88$4,888
May 201585155.212.96$4,696
Apr 2015109149.822.71$5,433
Mar 2015111142.892.93$4,764
Feb 2015107144.662.98$4,782
Jan 201568143.433.10$2,956
Dec 2014116154.693.59$6,348
Nov 201446170.464.25$3,245
Oct 2014153178.303.90$11,984
Sep 2014123186.164.05$10,602
Aug 2014119189.394.04$10,641
Jul 2014134196.564.18$12,943
Jun 2014134198.164.74$13,158
May 2014115194.734.73$10,899
Apr 2014137195.944.81$13,149
Mar 2014133195.895.06$12,758
Feb 2014118197.406.19$11,499
Jan 2014132190.404.86$11,938
Dec 2013184191.824.35$16,899
Nov 201380188.853.74$7,112
Oct 201371197.423.78$6,921
Sep 20131381104.113.72$14,371
Aug 20131321104.253.52$13,765
Jul 20131541102.523.72$15,792
Jun 2013132194.403.93$12,465
May 2013144194.834.15$13,660
Apr 2013150193.964.28$14,098
Mar 2013131193.623.91$12,268
Feb 2013219191.233.42$19,983
Jan 2013128191.603.42$11,728
Dec 2012152186.773.42$13,192
Nov 2012163186.953.62$14,176
Oct 2012150189.383.40$13,410
Sep 2012219194.672.92$20,736
Aug 2012147192.662.91$13,624
Jul 2012148185.133.02$12,602
Jun 2012149179.822.52$11,896
May 2012219191.612.49$20,065
Apr 20121421101.652.00$14,436
Mar 20121481105.052.22$15,550
Feb 20122141101.102.57$21,638
Jan 2012154198.092.73$15,109
Dec 2011209196.873.24$20,249
Nov 2011219195.723.31$20,966
Oct 2011149184.983.65$12,666
Sep 2011146183.623.99$12,213
Aug 2011203183.404.15$16,934
Jul 2011132194.144.52$12,431
Jun 2011184192.904.64$17,098
May 2011186198.134.40$18,257
Apr 20111251105.964.33$13,249
Mar 2011214196.364.06$20,625
Feb 2011130185.644.18$11,137
Jan 2011190186.504.59$16,440
Dec 2010132185.734.35$11,321
Nov 201064180.843.80$5,178
Oct 2010141178.103.51$11,016
Sep 2010194172.633.98$14,094
Aug 2010244173.684.42$17,982
Jul 2010317172.554.74$23,003
Jun 2010169170.364.91$11,896
May 2010248171.124.24$17,642
Apr 2010165181.694.12$13,483
Mar 2010255178.394.39$19,994
Feb 2010259173.585.44$19,063
Jan 2010171174.365.96$12,722
Dec 2009230171.445.48$16,437
Nov 2009172174.593.75$12,833
Oct 2009245172.544.11$17,776
Sep 2009253165.543.06$16,585
Aug 20092131167.423.22$14,396
Jul 20092401361.133.46$14,716
Jun 20092441366.163.90$16,194
May 20092501454.743.93$13,740
Apr 20092511446.773.59$11,790
Mar 20092551442.144.06$10,803
Feb 2009176932.814.63$5,816
Jan 20092651535.865.37$9,583
Dec 20083011637.105.98$11,263
Nov 20082821655.496.86$15,758
Oct 20083891775.246.92$29,386
Sep 200827715101.767.88$28,306
Aug 200829320114.228.48$33,636
Jul 200827918131.0811.39$36,776
Jun 200829218131.3313.03$38,583
May 200839118123.1711.57$48,368
Apr 200836518110.3110.45$40,451
Mar 200829118101.909.66$29,827
Feb 20083061792.538.77$28,463
Jan 20082941890.388.21$26,719
Dec 20073881888.337.30$34,403
Nov 20073102091.677.29$28,564
Oct 20073651782.856.92$30,358
Sep 20072881975.846.24$21,961
Aug 20072911469.066.39$20,186
Jul 20072881770.906.39$20,528
Jun 20073221862.007.55$20,100
May 20073241958.747.85$19,181
Apr 20073391559.617.81$20,325
Mar 20073272156.927.30$18,766
Feb 20074572055.108.22$25,345
Jan 20074832550.306.73$24,463
Dec 20063402456.656.92$19,427
Nov 20066243254.207.62$34,065
Oct 20064772554.906.01$26,338
Sep 20062341860.085.04$14,149
Aug 20064782668.717.34$33,034
Jul 20064612569.376.34$32,138
Jun 20064582466.286.38$30,509
May 20065722766.016.42$37,931
Apr 20064812764.397.36$31,170
Mar 20064592656.707.08$26,209
Feb 20064942857.597.75$28,666
Jan 20066203260.598.93$37,852
Dec 20056473454.9413.42$36,002
Nov 20055143254.6910.59$28,449
Oct 20056523558.3413.80$38,521
Sep 20056533661.4512.08$40,562
Aug 20054522561.519.80$28,047
Jul 20056933655.697.84$38,876
Jun 2005666652.337.38$34,896
May 20056713945.226.65$30,602
Apr 20056393749.207.36$31,711
Mar 20057414150.377.15$37,618
Feb 20057843945.226.31$35,699
Jan 20057934343.166.32$34,498
Dec 20046604239.866.75$26,591
Nov 20047984245.286.33$36,399
Oct 20047624249.706.52$38,145
Sep 20048214243.245.28$35,722
Aug 20049814242.375.55$41,798
Jul 20048244238.286.08$31,798
Jun 20048114236.106.43$29,547
May 20043324237.486.49$12,716
Apr 20047254234.475.86$25,237
Mar 20048514234.365.53$29,473
Feb 20045534232.455.51$18,176
Jan 20048334232.036.30$26,946
Dec 20037384230.266.30$22,597
Nov 20038424228.804.60$24,443
Oct 20038604228.174.76$24,426
Sep 20037264226.314.75$19,301
Aug 20038774229.765.13$26,315
Jul 20031,0094229.415.17$29,892
Jun 20037784228.565.98$22,471
May 20038974226.595.97$24,102
Apr 20031,0274226.675.41$27,617
Mar 20031,0474231.146.10$32,860
Feb 20039944233.487.93$33,612
Jan 20033844230.315.58$11,873
Dec 20024884226.914.85$13,336
Nov 20028254224.664.14$20,518
Oct 20028454226.464.23$22,536
Sep 20029534227.443.64$26,303
Aug 20027184225.963.16$18,772
Jul 20027274224.583.06$17,998
Jun 20028284223.733.34$19,789
May 20021,2144224.663.58$30,088
Apr 200204223.653.51$148
Mar 20027494222.003.10$16,608
Feb 20028914218.222.38$16,334
Jan 20021,0064217.172.38$17,373
Dec 20011,0594216.932.36$18,028
Nov 20011,3194218.072.41$23,935
Oct 20011,3754219.782.53$27,304
Sep 20011,0394224.262.25$25,301
Aug 20016434224.873.05$16,120
Jul 20011,2094223.933.20$29,066
Jun 20011,0214224.563.82$25,236
May 20011,3304225.524.31$34,123
Apr 20011,7534224.685.34$43,488
Mar 20013034224.545.38$7,661
Feb 20018114227.755.77$22,747
Jan 20011,1534227.478.40$32,026
Dec 20001,0584226.889.12$28,822
Nov 20001,0514232.215.66$34,090
Oct 20001,1954231.235.15$37,536
Sep 20001,0454231.875.19$33,522
Aug 20001,1174229.644.54$33,299
Jul 20001,4384228.534.09$41,198
Jun 20001,1804229.304.40$34,759
May 20001,4524227.263.68$39,736
Apr 20001,3824224.513.12$34,004
Mar 20001,3584328.422.86$38,717
Feb 20001,5024527.622.73$41,608
Jan 20001,2324025.272.48$31,232
Dec 19991,0813024.282.42$26,319
Nov 19991,0303223.192.43$23,964
Oct 19991,3155320.982.80$27,737
Sep 19991,2723821.752.62$27,766
Aug 19991,5024319.262.88$29,052
Jul 19991,3814317.892.37$24,808
Jun 19991,4744215.942.36$23,595
May 19991,3344315.792.32$21,164
Apr 19991,3264015.102.21$20,111
Mar 19991,5904812.471.84$19,916
Feb 19991,158369.981.82$11,622
Jan 19991,3354110.381.90$13,935
Dec 19981,358469.201.77$12,575
Nov 19981,3904310.892.19$15,231
Oct 19981,6424512.421.97$20,482
Sep 19981,3874512.592.08$17,556
Aug 19981,7205111.301.91$19,533
Jul 19981,9305811.742.24$22,788
Jun 19982,0626011.242.24$23,311
May 19982,1586112.622.21$27,369
Apr 19982,0526413.042.51$26,918
Mar 19982,4677212.802.31$31,744
Feb 19982,0786413.952.30$29,135
Jan 19982,4196914.702.15$35,708
Dec 19972,1576616.322.41$35,361
Nov 19972,2946918.193.09$41,941
Oct 19972,4537419.253.15$47,453
Sep 19971,8435517.742.95$32,857
Aug 19972,4533017.862.55$43,887
Jul 19972,4477717.582.25$43,191
Jun 19972,2466717.242.26$38,872
May 19970018.972.31$0
Apr 19970017.882.08$0
Mar 19970018.951.94$0
Feb 19970020.492.21$0
Jan 19970023.483.54$0
Dec 19960023.32$0
Nov 19960021.97$0
Oct 19960023.31$0
Sep 19960022.22$0
Aug 19960020.26$0
Jul 19960019.55$0
Jun 19960018.73$0
May 19960019.43$0
Apr 19960021.51$0
Mar 19960019.38$0
Feb 19960016.98$0
Jan 19960017.07$0
Dec 19950017.19$0
Nov 19950016.00$0
Oct 19950015.43$0
Sep 19950016.18$0
Aug 19950015.92$0
Jul 19950015.24$0
Jun 19950016.41$0
May 19950017.56$0
Apr 19950017.73$0
Mar 19950016.44$0
Feb 19950016.58$0
Jan 19950015.92$0
Dec 1994178015.03$2,675
Nov 1994850015.90$13,515
Oct 1994176015.58$2,742
Sep 1994337815.29$5,153
Aug 1994175716.13$2,823
Jul 1994336717.56$5,900
Jun 1994335717.09$5,725
May 1994341815.88$5,415
Apr 1994172814.14$2,432
Mar 1994526912.46$6,554
Feb 1994343912.50$4,288
Jan 19943611012.66$4,570
Dec 19935241212.33$6,461
Nov 19935231714.49$7,578
Oct 19935141415.85$8,147
Sep 19936891615.03$10,356
Aug 19935171615.66$8,096
Jul 19938611815.46$13,311
Jun 19936832016.79$11,468
May 19931,0392517.68$18,370
Apr 19931,2152918.05$21,931
Mar 19931,7343718.14$31,455
Feb 19931,9005017.90$34,010
Jan 19938672516.93$14,678

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.

Apr 2026 — as filed, then multipliedworked
Oil                   43 bbl  × $ 98.93 =     $4,254
Casinghead gas         0 Mcf  × $  2.87 =         $0

────────────────────────────────────────────────────
Month total                                   $4,254

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/66922 is the state's own key, not one this site invented.