CHAPA

Operated by CHAPCO, INC. (P-5 144611) in the PIEDRAS PINTAS DOME field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 12477District 04Field 71416001OilCasinghead gasSaveExport
Value, all time
$1.0 M
Jul 1995 – May 2026
Value, last 12 filed months
$0
at the published price for each month
Months reported
371
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 24 leases and 64 wells, and the rule below applies to all of them.

Discovered
1954-01-01
as the register files it
Field class
Oil and gas
the register's own label
Between wells
no field rule filed
From a lease line
no field rule filed

The Commission's schedule remark for this field reads: 4500'ONLY IN OIL FIELD. GAS FIELD TO FOLLOW STATEWIDE RULES.

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
OilDisposition37,077 bbl$1,006,314
Casinghead gasProduction13,316 Mcf$16,812
Total$1,023,126

6,205 Mcf of this lease's gas, across 7 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 (4)

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 27.6308, -98.3793. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.4 miles.

27.63080, -98.37937 · 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
25.0%
1 of 4 wells
With a plug date
25.0%
1 of 4 wells
Median depth
3,300 ft
4 wells filed one
Completion to plug
7.1 years
median over 1 well

What the state filed about each well

On the RRC proration schedule
125.0%
A plug date is filed
125.0%
BothOn the schedule and plugged. Neither fact cancels the other.
125.0%
NeitherNo plug date, and not on the schedule.
375.0%

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 2,550 and 3,700 ft, median 3,300 ft, over the 4 wells that filed a depth.

Completions filed
Jul 1995 – Aug 2007
4 of 4 wells
Plug dates filed
Feb 2003
1 of 4 wells; 3 filed none

Last completion to plug: a median of 7.1 years across the 1 well that filed both dates, with the middle half between 7.1 years and 7.1 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

4 wells

42-1313864062,990 ftAug 2007
42-1313806433,700 ftMay 1996
42-1313806942,550 ftJan 1996Feb 2003Yes
42-1313801613,609 ftJul 1995

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 (371)

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

371 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 2025144062.363.54$8,980
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 2024145073.023.30$10,588
Dec 20230071.262.61$0
Nov 2023152077.892.81$11,839
Oct 20230085.443.09$0
Sep 20230089.042.74$0
Aug 2023137080.522.67$11,031
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 20221510115.097.98$17,379
May 202200109.378.43$0
Apr 202200104.226.84$0
Mar 202200108.885.08$0
Feb 20220091.054.86$0
Jan 2022152081.844.54$12,440
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 2021169063.483.02$10,728
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 2019169059.012.30$9,973
Nov 20190055.302.75$0
Oct 20190053.472.42$0
Sep 20190055.052.66$0
Aug 20190053.112.30$0
Jul 20190056.272.46$0
Jun 20190052.782.49$0
May 20190058.482.74$0
Apr 20190062.632.75$0
Mar 20190056.803.06$0
Feb 20190050.852.79$0
Jan 20190046.033.23$0
Dec 20180046.594.19$0
Nov 20180052.934.24$0
Oct 20180061.443.40$0
Sep 20180059.543.11$0
Aug 20180059.403.07$0
Jul 2018171065.142.93$11,139
Jun 20180060.183.08$0
May 20180065.382.90$0
Apr 20180063.842.90$0
Mar 20180061.222.79$0
Feb 20180061.782.77$0
Jan 20180062.874.01$0
Dec 20170057.272.92$0
Nov 20170055.423.12$0
Oct 20170049.292.98$0
Sep 20170047.523.09$0
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 2014173095.895.06$16,589
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 20131740102.523.72$17,838
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 20121790105.052.22$18,804
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 2010164073.684.42$12,084
Jul 2010133072.554.74$9,649
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 2009159071.445.48$11,359
Nov 20090074.593.75$0
Oct 2009156072.544.11$11,316
Sep 20090065.543.06$0
Aug 20090067.423.22$0
Jul 20090061.133.46$0
Jun 2009171066.163.90$11,313
May 20090054.743.93$0
Apr 2009155046.773.59$7,249
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 20081540131.0811.39$20,186
Jun 20081540131.3313.03$20,225
May 200800123.1711.57$0
Apr 200800110.3110.45$0
Mar 200800101.909.66$0
Feb 2008184092.538.77$17,026
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 20070069.066.39$0
Jul 20070070.906.39$0
Jun 2007154062.007.55$9,548
May 20070058.747.85$0
Apr 20070059.617.81$0
Mar 20070056.927.30$0
Feb 2007163055.108.22$8,981
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 2006143068.717.34$9,826
Jul 20060069.376.34$0
Jun 20060066.286.38$0
May 20060066.016.42$0
Apr 20060064.397.36$0
Mar 20060056.707.08$0
Feb 2006310057.597.75$17,853
Jan 20060060.598.93$0
Dec 20050054.9413.42$0
Nov 20050054.6910.59$0
Oct 20050058.3413.80$0
Sep 20050061.4512.08$0
Aug 20050061.519.80$0
Jul 2005171055.697.84$9,523
Jun 20050052.337.38$0
May 20050045.226.65$0
Apr 20050049.207.36$0
Mar 2005152050.377.15$7,656
Feb 20050045.226.31$0
Jan 20050043.166.32$0
Dec 20040039.866.75$0
Nov 20040045.286.33$0
Oct 20040049.706.52$0
Sep 20040043.245.28$0
Aug 2004319042.375.55$13,516
Jul 20040038.286.08$0
Jun 20040036.106.43$0
May 20040037.486.49$0
Apr 20040034.475.86$0
Mar 20040034.365.53$0
Feb 2004165032.455.51$5,354
Jan 20040032.036.30$0
Dec 20030030.266.30$0
Nov 20030028.804.60$0
Oct 20030028.174.76$0
Sep 2003179026.314.75$4,709
Aug 20030029.765.13$0
Jul 20030029.415.17$0
Jun 20030028.565.98$0
May 20030026.595.97$0
Apr 2003267026.675.41$7,121
Mar 2003340031.146.10$10,588
Feb 20030033.487.93$0
Jan 20030030.315.58$0
Dec 20020026.914.85$0
Nov 20020024.664.14$0
Oct 20020026.464.23$0
Sep 20020027.443.64$0
Aug 20020025.963.16$0
Jul 20020024.583.06$0
Jun 20020023.733.34$0
May 20020024.663.58$0
Apr 2002124023.653.51$2,933
Mar 20020022.003.10$0
Feb 2002505018.222.38$9,201
Jan 2002183017.172.38$3,142
Dec 2001277016.932.36$4,690
Nov 2001325018.072.41$5,873
Oct 2001352019.782.53$6,963
Sep 2001532024.262.25$12,906
Aug 2001293024.873.05$7,287
Jul 2001175023.933.20$4,188
Jun 2001332024.563.82$8,154
May 2001329025.524.31$8,396
Apr 2001342024.685.34$8,441
Mar 2001494024.545.38$12,123
Feb 2001162027.755.77$4,496
Jan 2001189027.478.40$5,192
Dec 20000026.889.12$0
Nov 2000280032.215.66$9,019
Oct 20000031.235.15$0
Sep 2000294031.875.19$9,370
Aug 2000307029.644.54$9,099
Jul 2000313028.534.09$8,930
Jun 2000262029.304.40$7,677
May 2000158027.263.68$4,307
Apr 2000182024.513.12$4,461
Mar 2000161028.422.86$4,576
Feb 2000336027.622.73$9,280
Jan 20000025.272.48$0
Dec 19990024.282.42$0
Nov 1999325023.192.43$7,537
Oct 1999359020.982.80$7,532
Sep 1999149021.752.62$3,241
Aug 1999140019.262.88$2,696
Jul 1999210017.892.37$3,757
Jun 1999175015.942.36$2,790
May 19990015.792.32$0
Apr 1999216015.102.21$3,262
Mar 1999156012.471.84$1,945
Feb 1999009.981.82$0
Jan 19990010.381.90$0
Dec 19988209.201.77$754
Nov 1998158010.892.19$1,721
Oct 19980012.421.97$0
Sep 1998183012.592.08$2,304
Aug 1998174011.301.91$1,966
Jul 19980011.742.24$0
Jun 19980011.242.24$0
May 1998158012.622.21$1,994
Apr 1998172013.042.51$2,243
Mar 1998304012.802.31$3,891
Feb 1998189013.952.30$2,637
Jan 1998199014.702.15$2,925
Dec 1997384016.322.41$6,267
Nov 1997666018.193.09$12,115
Oct 1997556019.253.15$10,703
Sep 1997187017.742.95$3,317
Aug 1997316017.862.55$5,644
Jul 1997319017.582.25$5,608
Jun 19971732,23617.242.26$8,030
May 19973411,42118.972.31$9,749
Apr 199734942317.882.08$7,121
Mar 1997363018.951.94$6,879
Feb 19979422,34320.492.21$24,470
Jan 199752468823.483.54$14,739
Dec 19961,30185323.32$30,339
Nov 19965421,35821.97$11,908
Oct 199655940923.31$13,030
Sep 19961,111022.22$24,686
Aug 1996707020.26$14,324
Jul 199670825519.55$13,841
Jun 19968331,96018.73$15,602
May 19968431,36019.43$16,379
Apr 19961,063021.51$22,865
Mar 19961,239019.38$24,012
Feb 19961,032016.98$17,523
Jan 19967251017.07$12,376
Dec 1995732017.19$12,583
Nov 19951,063016.00$17,008
Oct 19951,162015.43$17,930
Sep 1995972016.18$15,727
Aug 19951,043015.92$16,605
Jul 1995357015.24$5,441

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 2025 — as filed, then multipliedworked
Oil                  144 bbl  × $ 62.36 =     $8,980
Casinghead gas         0 Mcf  × $  3.54 =         $0

────────────────────────────────────────────────────
Month total                                   $8,980

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. 04/O/12477 is the state's own key, not one this site invented.