UNION-STATE

Operated by LAST DOLLAR LLC (P-5 487693) in the FARMER (SAN ANDRES) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 10870District 7CField 30243500Hydrogen sulphide fieldNGPA filingOilCasinghead gasSaveExport
Value, all time
$935 k
Jan 1993 – May 2026
Value, last 12 filed months
$7 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 351 leases and 1,445 wells, and the rule below applies to all of them.

Discovered
1953-01-10
as the register files it
Field class
Oil and gas
the register's own label
Between wells
660 ft
minimum
From a lease line
330 ft
minimum

A drilling unit in this field needs at least 10 acres. The field rule took effect on 1997-12-16.

The register flags this field for hydrogen sulphide. That is a poisonous gas that occurs naturally in some formations. The flag is a property of the field as the Commission records it. It is not a measurement taken at this lease, and it is not a statement that gas is escaping anywhere.

The Commission's schedule remark for this field reads: PER DOCKET 7C-0214566 ON 3/7/97.

Severance-tax incentive filings

Applications the operator filed to have this lease's gas taxed at a reduced state rate. A filing is an application, and this page never calls one a reduction that was granted.

ProgrammeFilingsWith an approval dateDatedDocket
NGPA3none

This says nothing about a royalty. A severance tax is charged to the operator. Whether a reduced rate reaches a royalty owner depends on the wording of the lease instrument, which is a private contract this site does not hold.

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
OilDisposition19,842 bbl$934,774
Casinghead gasProduction2,638 Mcf$0
Total$934,774

2,638 Mcf of this lease's gas, across 35 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 (3)

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 31.0527, -101.3159. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.6 miles.

31.05241, -101.31520 · 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
33.3%
1 of 3 wells
With a plug date
33.3%
1 of 3 wells
Median depth
2,351 ft
3 wells filed one
Completion to plug
8.0 years
median over 1 well

What the state filed about each well

On the RRC proration schedule
133.3%
A plug date is filed
133.3%
BothOn the schedule and plugged. Neither fact cancels the other.
133.3%
NeitherNo plug date, and not on the schedule.
266.7%

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 2,200 and 2,440 ft, median 2,351 ft, over the 3 wells that filed a depth.

Completions filed
Aug 1984 – Dec 1984
3 of 3 wells
Plug dates filed
Aug 1992
1 of 3 wells; 2 filed none

Last completion to plug: a median of 8.0 years across the 1 well that filed both dates, with the middle half between 8.0 years and 8.0 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

3 wells

42-1053491732,200 ftDec 1984
42-1053486422,440 ftAug 1984
42-1053485612,351 ftAug 1984Aug 1992Yes

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 2025106062.743.08$6,650
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 202579067.704.27$5,348
Feb 20250070.884.34$0
Jan 2025116074.324.28$8,621
Dec 20240068.993.12$0
Nov 20240069.052.20$0
Oct 2024118071.372.28$8,422
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 20242080.301.55$161
Feb 20240076.091.78$0
Jan 20240073.023.30$0
Dec 2023114071.262.61$8,124
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 2023112068.962.26$7,724
May 20230070.622.23$0
Apr 20230078.122.24$0
Mar 20230072.852.39$0
Feb 2023120075.112.47$9,013
Jan 20230076.533.39$0
Dec 20220076.415.73$0
Nov 2022108085.005.65$9,180
Oct 20220087.185.86$0
Sep 20220084.888.16$0
Aug 2022117094.529.13$11,059
Jul 202200101.587.54$0
Jun 202200115.097.98$0
May 2022920109.378.43$10,062
Apr 202200104.226.84$0
Mar 202200108.885.08$0
Feb 2022119091.054.86$10,835
Jan 20220081.844.54$0
Dec 20210071.323.90$0
Nov 20210077.435.24$0
Oct 2021117079.795.71$9,335
Sep 20210069.865.35$0
Aug 20210066.024.22$0
Jul 20210070.783.98$0
Jun 2021119069.493.38$8,269
May 20210063.483.02$0
Apr 20210060.362.76$0
Mar 2021113061.302.72$6,927
Feb 20210057.805.55$0
Jan 2021116050.412.81$5,848
Dec 20200044.642.68$0
Nov 2020110038.772.71$4,265
Oct 2020124036.972.48$4,584
Sep 20200037.091.99$0
Aug 20200039.982.39$0
Jul 20200038.371.83$0
Jun 20200034.901.69$0
May 2020109016.921.81$1,844
Apr 2020116014.751.80$1,711
Mar 20200030.341.86$0
Feb 20200049.881.98$0
Jan 20200057.252.09$0
Dec 2019118059.012.30$6,963
Nov 2019104055.302.75$5,751
Oct 20190053.472.42$0
Sep 20190055.052.66$0
Aug 2019102053.112.30$5,417
Jul 20190056.272.46$0
Jun 2019118052.782.49$6,228
May 2019117058.482.74$6,842
Apr 20190062.632.75$0
Mar 2019119056.803.06$6,759
Feb 20190050.852.79$0
Jan 2019126046.033.23$5,800
Dec 20180046.594.19$0
Nov 20180052.934.24$0
Oct 20180061.443.40$0
Sep 2018103059.543.11$6,133
Aug 20180059.403.07$0
Jul 2018118065.142.93$7,687
Jun 20180060.183.08$0
May 2018124065.382.90$8,107
Apr 20180063.842.90$0
Mar 20180061.222.79$0
Feb 2018120061.782.77$7,414
Jan 20180062.874.01$0
Dec 20170057.272.92$0
Nov 2017118055.423.12$6,540
Oct 20170049.292.98$0
Sep 2017100047.523.09$4,752
Aug 2017110045.373.00$4,991
Jul 20170043.873.09$0
Jun 2017112042.493.09$4,759
May 20170045.373.26$0
Apr 20170047.933.21$0
Mar 2017117046.772.98$5,472
Feb 20170050.452.95$0
Jan 2017118049.413.42$5,830
Dec 20160048.763.72$0
Nov 2016119042.492.64$5,056
Oct 20160046.193.09$0
Sep 2016112041.553.10$4,654
Aug 20160041.442.92$0
Jul 20160041.622.92$0
Jun 2016109045.352.69$4,943
May 20160042.521.99$0
Apr 20160036.561.99$0
Mar 2016117033.011.79$3,862
Feb 20160026.472.06$0
Jan 2016103027.352.36$2,817
Dec 20150032.362.00$0
Nov 201590038.792.17$3,491
Oct 2015115043.552.43$5,008
Sep 20150042.992.76$0
Aug 2015116040.162.87$4,659
Jul 20150048.152.95$0
Jun 20150056.152.88$0
May 2015109055.212.96$6,018
Apr 20150049.822.71$0
Mar 2015100042.892.93$4,289
Feb 20150044.662.98$0
Jan 2015117043.433.10$5,081
Dec 20140054.693.59$0
Nov 2014106070.464.25$7,469
Oct 20140078.303.90$0
Sep 20140086.164.05$0
Aug 20140089.394.04$0
Jul 2014119096.564.18$11,491
Jun 20140098.164.74$0
May 2014117094.734.73$11,083
Apr 20140095.944.81$0
Mar 20140095.895.06$0
Feb 20140097.406.19$0
Jan 2014108090.404.86$9,763
Dec 20130091.824.35$0
Nov 20130088.853.74$0
Oct 20130097.423.78$0
Sep 20131140104.113.72$11,869
Aug 201300104.253.52$0
Jul 201300102.523.72$0
Jun 2013115094.403.93$10,856
May 20130094.834.15$0
Apr 20130093.964.28$0
Mar 20130093.623.91$0
Feb 201385091.233.42$7,755
Jan 20130091.603.42$0
Dec 20120086.773.42$0
Nov 2012112086.953.62$9,738
Oct 20120089.383.40$0
Sep 2012118094.672.92$11,171
Aug 20120092.662.91$0
Jul 2012106085.133.02$9,024
Jun 20120079.822.52$0
May 2012112091.612.49$10,260
Apr 201200101.652.00$0
Mar 201200105.052.22$0
Feb 201200101.102.57$0
Jan 2012108098.092.73$10,594
Dec 20110096.873.24$0
Nov 20110095.723.31$0
Oct 2011120084.983.65$10,198
Sep 20110083.623.99$0
Aug 2011117083.404.15$9,758
Jul 20110094.144.52$0
Jun 20110092.904.64$0
May 2011110098.134.40$10,794
Apr 201100105.964.33$0
Mar 2011112096.364.06$10,792
Feb 20110085.644.18$0
Jan 20110086.504.59$0
Dec 2010119085.734.35$10,202
Nov 20100080.843.80$0
Oct 20100078.103.51$0
Sep 2010118072.633.98$8,570
Aug 20100073.684.42$0
Jul 2010112072.554.74$8,126
Jun 20100070.364.91$0
May 2010117071.124.24$8,321
Apr 2010116081.694.12$9,476
Mar 20100078.394.39$0
Feb 2010105073.585.44$7,726
Jan 2010114074.365.96$8,477
Dec 20090071.445.48$0
Nov 2009117074.593.75$8,727
Oct 20090072.544.11$0
Sep 20090065.543.06$0
Aug 2009114067.423.22$7,686
Jul 20090061.133.46$0
Jun 2009119066.163.90$7,873
May 20090054.743.93$0
Apr 2009121046.773.59$5,659
Mar 20090042.144.06$0
Feb 2009113032.814.63$3,708
Jan 2009118035.865.37$4,231
Dec 20080037.105.98$0
Nov 2008114055.496.86$6,326
Oct 20080075.246.92$0
Sep 20081170101.767.88$11,906
Aug 200800114.228.48$0
Jul 200800131.0811.39$0
Jun 20081160131.3313.03$15,234
May 200800123.1711.57$0
Apr 20081130110.3110.45$12,465
Mar 200800101.909.66$0
Feb 2008112092.538.77$10,363
Jan 20080090.388.21$0
Dec 2007122088.337.30$10,776
Nov 20070091.677.29$0
Oct 2007116082.856.92$9,611
Sep 20070075.846.24$0
Aug 2007114069.066.39$7,873
Jul 2007111070.906.39$7,870
Jun 20070062.007.55$0
May 2007116058.747.85$6,814
Apr 20070059.617.81$0
Mar 2007112056.927.30$6,375
Feb 2007110055.108.22$6,061
Jan 2007117050.306.73$5,885
Dec 20060056.656.92$0
Nov 20060054.207.62$0
Oct 2006123054.906.01$6,753
Sep 2006117060.085.04$7,029
Aug 20060068.717.34$0
Jul 2006124069.376.34$8,602
Jun 20060066.286.38$0
May 2006122066.016.42$8,053
Apr 20060064.397.36$0
Mar 20060056.707.08$0
Feb 2006111057.597.75$6,392
Jan 20060060.598.93$0
Dec 20050054.9413.42$0
Nov 2005112054.6910.59$6,125
Oct 2005118058.3413.80$6,884
Sep 20050061.4512.08$0
Aug 2005118061.519.80$7,258
Jul 20050055.697.84$0
Jun 2005117052.337.38$6,123
May 20050045.226.65$0
Apr 2005108049.207.36$5,314
Mar 20050050.377.15$0
Feb 2005114045.226.31$5,155
Jan 20050043.166.32$0
Dec 2004114039.866.75$4,544
Nov 2004108045.286.33$4,890
Oct 20040049.706.52$0
Sep 2004115043.245.28$4,973
Aug 2004119042.375.55$5,042
Jul 2004107038.286.08$4,096
Jun 20040036.106.43$0
May 2004112037.486.49$4,198
Apr 20040034.475.86$0
Mar 20040034.365.53$0
Feb 20040032.455.51$0
Jan 2004122032.036.30$3,908
Dec 20030030.266.30$0
Nov 2003123028.804.60$3,542
Oct 20030028.174.76$0
Sep 2003120026.314.75$3,157
Aug 20030029.765.13$0
Jul 2003116029.415.17$3,412
Jun 20030028.565.98$0
May 2003115026.595.97$3,058
Apr 20030026.675.41$0
Mar 2003120031.146.10$3,737
Feb 20030033.487.93$0
Jan 2003121030.315.58$3,668
Dec 20020026.914.85$0
Nov 2002109024.664.14$2,688
Oct 20020026.464.23$0
Sep 2002122027.443.64$3,348
Aug 20020025.963.16$0
Jul 2002118024.583.06$2,900
Jun 20020023.733.34$0
May 2002120024.663.58$2,959
Apr 20020023.653.51$0
Mar 2002121022.003.10$2,662
Feb 2002118018.222.38$2,150
Jan 20020017.172.38$0
Dec 2001116016.932.36$1,964
Nov 20010018.072.41$0
Oct 2001122019.782.53$2,413
Sep 20010024.262.25$0
Aug 2001114024.873.05$2,835
Jul 20010023.933.20$0
Jun 2001119024.563.82$2,923
May 20010025.524.31$0
Apr 2001120024.685.34$2,962
Mar 20010024.545.38$0
Feb 2001120027.755.77$3,330
Jan 2001121027.478.40$3,324
Dec 20000026.889.12$0
Nov 2000122032.215.66$3,930
Oct 20000031.235.15$0
Sep 2000118031.875.19$3,761
Aug 2000121029.644.54$3,586
Jul 20000028.534.09$0
Jun 2000119029.304.40$3,487
May 20000027.263.68$0
Apr 2000119024.513.12$2,917
Mar 20000028.422.86$0
Feb 2000121027.622.73$3,342
Jan 20000025.272.48$0
Dec 1999121024.282.42$2,938
Nov 1999121023.192.43$2,806
Oct 19990020.982.80$0
Sep 1999110021.752.62$2,393
Aug 1999118019.262.88$2,273
Jul 19990017.892.37$0
Jun 1999118015.942.36$1,881
May 19990015.792.32$0
Apr 1999123015.102.21$1,857
Mar 19990012.471.84$0
Feb 199912209.981.82$1,218
Jan 1999121010.381.90$1,256
Dec 1998009.201.77$0
Nov 199882010.892.19$893
Oct 19980012.421.97$0
Sep 199865012.592.08$818
Aug 19980011.301.91$0
Jul 199858011.742.24$681
Jun 199870011.242.24$787
May 199856012.622.21$707
Apr 199874013.042.51$965
Mar 199877012.802.31$986
Feb 199896013.952.30$1,339
Jan 19980014.702.15$0
Dec 199776016.322.41$1,240
Nov 199767018.193.09$1,219
Oct 199777019.253.15$1,482
Sep 199778017.742.95$1,384
Aug 199782017.862.55$1,465
Jul 199761017.582.25$1,072
Jun 199773017.242.26$1,259
May 199773018.972.31$1,385
Apr 19970017.882.08$0
Mar 199790018.951.94$1,706
Feb 19970020.492.21$0
Jan 199775023.483.54$1,761
Dec 199686023.32$2,006
Nov 19960021.97$0
Oct 199690023.31$2,098
Sep 19960022.22$0
Aug 199688020.26$1,783
Jul 19960019.55$0
Jun 199659018.73$1,105
May 199684019.43$1,632
Apr 19960021.51$0
Mar 199665019.38$1,260
Feb 199686016.98$1,460
Jan 19960017.07$0
Dec 199561017.19$1,049
Nov 1995807516.00$1,280
Oct 1995846215.43$1,296
Sep 199507316.18$0
Aug 1995907015.92$1,433
Jul 199507115.24$0
Jun 1995786016.41$1,280
May 1995888717.56$1,545
Apr 199508717.73$0
Mar 1995838816.44$1,365
Feb 199508116.58$0
Jan 1995898615.92$1,417
Dec 199408915.03$0
Nov 1994889015.90$1,399
Oct 1994816415.58$1,262
Sep 199408215.29$0
Aug 1994886016.13$1,419
Jul 199407617.56$0
Jun 1994727817.09$1,230
May 1994829115.88$1,302
Apr 199407214.14$0
Mar 1994766912.46$947
Feb 1994847812.50$1,050
Jan 199407412.66$0
Dec 1993737512.33$900
Nov 1993828214.49$1,188
Oct 199308715.85$0
Sep 1993808415.03$1,202
Aug 1993859115.66$1,331
Jul 199308615.46$0
Jun 1993887116.79$1,478
May 199307317.68$0
Apr 1993893818.05$1,606
Mar 1993846118.14$1,524
Feb 199305817.90$0
Jan 1993896916.93$1,507

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.

Sep 2025 — as filed, then multipliedworked
Oil                  106 bbl  × $ 62.74 =     $6,650
Casinghead gas         0 Mcf  × $  3.08 =         $0

────────────────────────────────────────────────────
Month total                                   $6,650

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. 7C/O/10870 is the state's own key, not one this site invented.