NEINAST-MCMAHAN UNIT

Operated by ENERVEST OPERATING, L.L.C. (P-5 252131) in the GIDDINGS (AUSTIN CHALK-3) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 21616District 03Field 34733500OilCasinghead gasSaveExport
Value, all time
$3.5 M
Jan 1993 – Aug 2017
Value, last 12 filed months
$0
at the published price for each month
Months reported
296
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 5,900 leases and 6,985 wells, and the rule below applies to all of them.

Discovered
1960-10-29
as the register files it
Field class
Oil and gas
the register's own label
Between wells
0 ft
minimum
From a lease line
330 ft
minimum

A drilling unit in this field needs at least 80 acres. The field rule took effect on 2025-09-30.

The Commission's schedule remark for this field reads: DKT OG-25-00028011: UFT FIELD, ALLOCATION FORMULA SUSPENDED

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
OilDisposition109,997 bbl$2,358,661
Casinghead gasProduction632,744 Mcf$1,138,507
Total$3,497,168

335,951 Mcf of this lease's gas, across 46 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 (1)

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 30.2554, -96.6199. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.0 miles.

30.25545, -96.61992 · 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
100.0%
1 of 1 wells
With a plug date
100.0%
1 of 1 wells
Median depth
14,510 ft
1 wells filed one
Completion to plug
24.2 years
median over 1 well

What the state filed about each well

On the RRC proration schedule
1100.0%
A plug date is filed
1100.0%
BothOn the schedule and plugged. Neither fact cancels the other.
1100.0%
NeitherNo plug date, and not on the schedule.
00.0%

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

The one well that filed a depth was drilled to 14,510 ft.

Completions filed
May 1993
1 of 1 wells
Plug dates filed
Jul 2017
1 of 1 wells

Last completion to plug: a median of 24.2 years across the 1 well that filed both dates, with the middle half between 24.2 years and 24.2 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

1 well

42-47730689114,510 ftMay 1993Jul 2017Yes

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 (296)

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

296 months

Aug 20170045.373.00$0
Jul 20170043.873.09$0
Jun 20170042.493.09$0
May 20170045.373.26$0
Apr 20170047.933.21$0
Mar 20170046.772.98$0
Feb 20170050.452.95$0
Jan 20170049.413.42$0
Dec 20160048.763.72$0
Nov 20160042.492.64$0
Oct 20160046.193.09$0
Sep 20160041.553.10$0
Aug 20160041.442.92$0
Jul 20160041.622.92$0
Jun 20160045.352.69$0
May 20160042.521.99$0
Apr 20160036.561.99$0
Mar 20160033.011.79$0
Feb 20160026.472.06$0
Jan 20160027.352.36$0
Dec 20150032.362.00$0
Nov 20150038.792.17$0
Oct 20150043.552.43$0
Sep 20150042.992.76$0
Aug 20150040.162.87$0
Jul 20150048.152.95$0
Jun 20150056.152.88$0
May 20150055.212.96$0
Apr 20150049.822.71$0
Mar 20150042.892.93$0
Feb 20150044.662.98$0
Jan 20150043.433.10$0
Dec 20140054.693.59$0
Nov 20140070.464.25$0
Oct 20140078.303.90$0
Sep 20140086.164.05$0
Aug 20140089.394.04$0
Jul 20140096.564.18$0
Jun 20140098.164.74$0
May 20140094.734.73$0
Apr 20140095.944.81$0
Mar 20140095.895.06$0
Feb 20140097.406.19$0
Jan 20140090.404.86$0
Dec 20130091.824.35$0
Nov 20130088.853.74$0
Oct 20130097.423.78$0
Sep 201300104.113.72$0
Aug 201300104.253.52$0
Jul 201300102.523.72$0
Jun 20130094.403.93$0
May 20130094.834.15$0
Apr 20130093.964.28$0
Mar 20130093.623.91$0
Feb 20130091.233.42$0
Jan 20130091.603.42$0
Dec 20120086.773.42$0
Nov 20120086.953.62$0
Oct 20120089.383.40$0
Sep 20120094.672.92$0
Aug 20120092.662.91$0
Jul 20120085.133.02$0
Jun 20120079.822.52$0
May 20120091.612.49$0
Apr 201200101.652.00$0
Mar 201200105.052.22$0
Feb 201200101.102.57$0
Jan 20120098.092.73$0
Dec 20110096.873.24$0
Nov 20110095.723.31$0
Oct 20110084.983.65$0
Sep 20110083.623.99$0
Aug 20110083.404.15$0
Jul 20110094.144.52$0
Jun 20110092.904.64$0
May 20110098.134.40$0
Apr 201100105.964.33$0
Mar 20110096.364.06$0
Feb 20110085.644.18$0
Jan 20110086.504.59$0
Dec 20100085.734.35$0
Nov 20100080.843.80$0
Oct 20100078.103.51$0
Sep 20100072.633.98$0
Aug 20100073.684.42$0
Jul 20100072.554.74$0
Jun 20100070.364.91$0
May 20100071.124.24$0
Apr 20100081.694.12$0
Mar 20100078.394.39$0
Feb 20100073.585.44$0
Jan 20100074.365.96$0
Dec 20090071.445.48$0
Nov 20090074.593.75$0
Oct 20090072.544.11$0
Sep 20090065.543.06$0
Aug 20090067.423.22$0
Jul 20090061.133.46$0
Jun 20090066.163.90$0
May 20090054.743.93$0
Apr 20090046.773.59$0
Mar 20090042.144.06$0
Feb 20090032.814.63$0
Jan 20090035.865.37$0
Dec 20080037.105.98$0
Nov 20080055.496.86$0
Oct 20080075.246.92$0
Sep 200800101.767.88$0
Aug 200800114.228.48$0
Jul 200800131.0811.39$0
Jun 200800131.3313.03$0
May 200800123.1711.57$0
Apr 200800110.3110.45$0
Mar 200800101.909.66$0
Feb 20080092.538.77$0
Jan 20080090.388.21$0
Dec 20070088.337.30$0
Nov 20070091.677.29$0
Oct 20070082.856.92$0
Sep 20070075.846.24$0
Aug 200740069.066.39$2,762
Jul 20070070.906.39$0
Jun 20070062.007.55$0
May 20070058.747.85$0
Apr 20070059.617.81$0
Mar 20070056.927.30$0
Feb 20070055.108.22$0
Jan 20070050.306.73$0
Dec 20060056.656.92$0
Nov 20060054.207.62$0
Oct 20060054.906.01$0
Sep 20060060.085.04$0
Aug 2006111068.717.34$7,627
Jul 20060069.376.34$0
Jun 20060066.286.38$0
May 20062066.016.42$132
Apr 200619786064.397.36$19,015
Mar 20063991,00156.707.08$29,713
Feb 200618760657.597.75$15,467
Jan 20063961,01260.598.93$33,034
Dec 200539291654.9413.42$33,825
Nov 200518377954.6910.59$18,257
Oct 20053931,16058.3413.80$38,931
Sep 200539199761.4512.08$36,070
Aug 20053931,20561.519.80$35,979
Jul 20051961,46755.697.84$22,422
Jun 20051961,04152.337.38$17,940
May 20053861,22645.226.65$25,609
Apr 20051881,01549.207.36$16,720
Mar 20055851,53150.377.15$40,421
Feb 20053381,46145.226.31$24,506
Jan 20053911,16643.166.32$24,247
Dec 20043991,79039.866.75$27,989
Nov 20043901,45845.286.33$26,889
Oct 20043861,50349.706.52$28,976
Sep 20045401,46243.245.28$31,075
Aug 20043721,67942.375.55$25,081
Jul 20043741,79238.286.08$25,220
Jun 20045471,42836.106.43$28,933
May 20043962,18837.486.49$29,052
Apr 20043952,28934.475.86$27,026
Mar 20045862,45234.365.53$33,695
Feb 20043992,23232.455.51$25,245
Jan 20045982,39532.036.30$34,242
Dec 20035942,57530.266.30$34,201
Nov 20033932,54428.804.60$23,008
Oct 20035902,72228.174.76$29,576
Sep 20035862,49026.314.75$27,244
Aug 20035722,78629.765.13$31,314
Jul 20035652,31029.415.17$28,561
Jun 20033672,21628.565.98$23,740
May 20035542,48226.595.97$29,555
Apr 20035412,33726.675.41$27,065
Mar 20037273,17731.146.10$42,006
Feb 20037223,17533.487.93$49,337
Jan 20035573,43430.315.58$36,051
Dec 20025553,70926.914.85$32,938
Nov 20025303,61624.664.14$28,029
Oct 20027283,80626.464.23$35,359
Sep 20026983,88327.443.64$33,269
Aug 20026874,30125.963.16$31,444
Jul 20026694,50324.583.06$30,231
Jun 20027254,60423.733.34$32,574
May 20027364,94124.663.58$35,858
Apr 20027334,98723.653.51$34,851
Mar 20021,0835,34722.003.10$40,416
Feb 20025254,99718.222.38$21,437
Jan 20021,0945,73017.172.38$32,397
Dec 20019215,97316.932.36$29,715
Nov 20019236,16418.072.41$31,506
Oct 20011,0866,10419.782.53$36,917
Sep 20011,1086,27724.262.25$41,012
Aug 20011,6459,04024.873.05$68,512
Jul 20019053,92823.933.20$34,215
Jun 20011491,35524.563.82$8,841
May 20011791,09525.524.31$9,285
Apr 20011851,56324.685.34$12,905
Mar 20013751,77624.545.38$18,751
Feb 20013611,52727.755.77$18,824
Jan 20011991,68727.478.40$19,635
Dec 20003621,64126.889.12$24,701
Nov 20001971,63132.215.66$15,574
Oct 20005631,80831.235.15$26,886
Sep 20001881,75931.875.19$15,115
Aug 20001891,84129.644.54$13,961
Jul 20003791,96528.534.09$18,849
Jun 20001851,80329.304.40$13,349
May 20003921,96627.263.68$17,920
Apr 20003802,11824.513.12$15,913
Mar 20001982,13328.422.86$11,727
Feb 20003662,12627.622.73$15,905
Jan 20007192,17325.272.48$23,559
Dec 199902,02324.282.42$4,903
Nov 19991792,05023.192.43$9,141
Oct 19993442,24020.982.80$13,497
Sep 19993662,14221.752.62$13,570
Aug 19993552,30819.262.88$13,474
Jul 19993822,26017.892.37$12,196
Jun 19993632,30915.942.36$11,240
May 19993612,36615.792.32$11,192
Apr 19993532,31615.102.21$10,444
Mar 19993732,46612.471.84$9,185
Feb 19993862,1729.981.82$7,801
Jan 19993842,56910.381.90$8,867
Dec 19984012,5479.201.77$8,206
Nov 19983662,59010.892.19$9,647
Oct 19983642,72612.421.97$9,889
Sep 19983932,66312.592.08$10,494
Aug 19983942,73511.301.91$9,669
Jul 19983892,74611.742.24$10,710
Jun 19983762,70611.242.24$10,280
May 19983932,84812.622.21$11,243
Apr 19983872,79213.042.51$12,041
Mar 19985813,03412.802.31$14,444
Feb 19983902,67113.952.30$11,581
Jan 19983983,10514.702.15$12,541
Dec 19974963,36916.322.41$16,218
Nov 19973882,99218.193.09$16,298
Oct 19973923,26419.253.15$17,827
Sep 19975963,31217.742.95$20,360
Aug 19973863,38317.862.55$15,537
Jul 19975763,62517.582.25$18,271
Jun 19973942,68617.242.26$12,855
May 19975613,39218.972.31$18,473
Apr 19973933,51217.882.08$14,342
Mar 19975093,62818.951.94$16,681
Feb 19975883,30420.492.21$19,336
Jan 19975683,70623.483.54$26,455
Dec 19965723,77823.32$13,339
Nov 19965963,67721.97$13,094
Oct 19967593,96623.31$17,692
Sep 19961973,85922.22$4,377
Aug 19965624,01320.26$11,386
Jul 19967074,12919.55$13,822
Jun 19967134,12618.73$13,354
May 19963584,40719.43$6,956
Apr 19965784,39321.51$12,433
Mar 19967544,40819.38$14,613
Feb 19965914,40616.98$10,035
Jan 19967394,30017.07$12,615
Dec 19955614,67717.19$9,644
Nov 19955644,51816.00$9,024
Oct 19957294,95215.43$11,248
Sep 19957625,10616.18$12,329
Aug 19957574,94115.92$12,051
Jul 19955475,44115.24$8,336
Jun 19957505,48116.41$12,308
May 19957554,59717.56$13,258
Apr 19959624,33017.73$17,056
Mar 19951,0725,73816.44$17,624
Feb 19957105,52616.58$11,772
Jan 19951,0836,12015.92$17,241
Dec 19949096,19315.03$13,662
Nov 19941,0736,63715.90$17,061
Oct 19949256,17815.58$14,412
Sep 19941,1026,33315.29$16,850
Aug 19941,0666,72916.13$17,195
Jul 19941,2587,15117.56$22,090
Jun 19941,0837,48117.09$18,508
May 19941,4297,86115.88$22,693
Apr 19941,4347,71514.14$20,277
Mar 19941,4358,06712.46$17,880
Feb 19941,2787,70212.50$15,975
Jan 19941,6719,40212.66$21,155
Dec 19932,0339,89212.33$25,067
Nov 19931,81810,11514.49$26,343
Oct 19932,00711,95215.85$31,811
Sep 19932,71213,65615.03$40,761
Aug 19932,91516,82115.66$45,649
Jul 19933,24720,03415.46$50,199
Jun 19935,75027,48116.79$96,543
May 19933,27613,72917.68$57,920
Apr 19932,24212,37218.05$40,468
Mar 19930018.14$0
Feb 19930017.90$0
Jan 199301,56116.93$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 2007 — as filed, then multipliedworked
Oil                   40 bbl  × $ 69.06 =     $2,762
Casinghead gas         0 Mcf  × $  6.39 =         $0

────────────────────────────────────────────────────
Month total                                   $2,762

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. 03/O/21616 is the state's own key, not one this site invented.