GILLAND

Operated by DARKENS OIL & GAS INC. (P-5 200560) in the MCELROY field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 12670District 08Field 59337001Hydrogen sulphide fieldOilCasinghead gasSaveExport
Value, all time
$711 k
Jan 1993 – May 2026
Value, last 12 filed months
$20 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 114 leases and 4,417 wells, and the rule below applies to all of them.

Discovered
1941-12-31
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 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: WAS STATED AS THE GRAYBURG SAN ANDRES DOLOMITE AT 3000FT.

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
OilDisposition15,637 bbl$710,688
Casinghead gasProduction108 Mcf$219
Total$710,907

38 Mcf of this lease's gas, across 38 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 31.3505, -102.3249. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.3 miles.

31.35053, -102.32494 · 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
0.0%
0 of 2 wells
With a plug date
0.0%
0 of 2 wells
Median depth
3,250 ft
1 wells filed one
Completion to plug
no well filed both dates

What the state filed about each well

On the RRC proration schedule
00.0%
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.
2100.0%

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 3,250 ft.

Completions filed
Nov 1979
1 of 2 wells; 1 filed none

2 wells

42-103036431
42-103320941 A3,250 ftNov 1979

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 202662089.753.15$5,565
Feb 20260063.503.75$0
Jan 20260059.138.00$0
Dec 202582056.664.41$4,646
Nov 20250058.593.93$0
Oct 20250059.383.30$0
Sep 202598062.743.08$6,149
Aug 20250063.933.01$0
Jul 20250066.743.32$0
Jun 202562066.483.13$4,122
May 20250060.553.23$0
Apr 202564062.363.54$3,991
Mar 20250067.704.27$0
Feb 202585070.884.34$6,025
Jan 202558074.324.28$4,311
Dec 20240068.993.12$0
Nov 20240069.052.20$0
Oct 2024121071.372.28$8,636
Sep 20240069.612.36$0
Aug 20240075.632.06$0
Jul 20240079.932.15$0
Jun 202460078.082.63$4,685
May 20240078.812.20$0
Apr 20240084.451.66$0
Mar 20240080.301.55$0
Feb 202456076.091.78$4,261
Jan 202457073.023.30$4,162
Dec 20230071.262.61$0
Nov 20230077.892.81$0
Oct 20230085.443.09$0
Sep 20230089.042.74$0
Aug 2023150080.522.67$12,078
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 2022180085.005.65$15,300
Oct 20220087.185.86$0
Sep 20220084.888.16$0
Aug 20220094.529.13$0
Jul 202200101.587.54$0
Jun 202200115.097.98$0
May 202200109.378.43$0
Apr 202200104.226.84$0
Mar 202200108.885.08$0
Feb 20220091.054.86$0
Jan 20220081.844.54$0
Dec 2021172071.323.90$12,267
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 20210063.483.02$0
Apr 2021186060.362.76$11,227
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 2020167030.341.86$5,067
Feb 20200049.881.98$0
Jan 20200057.252.09$0
Dec 2019164059.012.30$9,678
Nov 20190055.302.75$0
Oct 20190053.472.42$0
Sep 20190055.052.66$0
Aug 2019160053.112.30$8,498
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 2019170050.852.79$8,645
Jan 20190046.033.23$0
Dec 20180046.594.19$0
Nov 20180052.934.24$0
Oct 20180061.443.40$0
Sep 2018160059.543.11$9,526
Aug 20180059.403.07$0
Jul 20180065.142.93$0
Jun 20180060.183.08$0
May 20180065.382.90$0
Apr 2018176063.842.90$11,236
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 2016157045.352.69$7,120
May 20160042.521.99$0
Apr 20160036.561.99$0
Mar 201693033.011.79$3,070
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 2015167056.152.88$9,377
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 201488095.944.81$8,443
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 2013330102.523.72$3,383
Jun 201386094.403.93$8,118
May 201369094.834.15$6,543
Apr 20130093.964.28$0
Mar 2013165093.623.91$15,447
Feb 20130091.233.42$0
Jan 20130091.603.42$0
Dec 20120086.773.42$0
Nov 201232086.953.62$2,782
Oct 201264089.383.40$5,720
Sep 201299094.672.92$9,372
Aug 201285092.662.91$7,876
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 2012180098.092.73$17,656
Dec 20110096.873.24$0
Nov 20110095.723.31$0
Oct 20110084.983.65$0
Sep 2011159083.623.99$13,296
Aug 20110083.404.15$0
Jul 20110094.144.52$0
Jun 20110092.904.64$0
May 201180098.134.40$7,850
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 2010181080.843.80$14,632
Oct 20100078.103.51$0
Sep 20100072.633.98$0
Aug 20100073.684.42$0
Jul 2010174072.554.74$12,624
Jun 20100070.364.91$0
May 20100071.124.24$0
Apr 20100081.694.12$0
Mar 2010181078.394.39$14,189
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 2009170065.543.06$11,142
Aug 20090067.423.22$0
Jul 20090061.133.46$0
Jun 2009167066.163.90$11,049
May 20090054.743.93$0
Apr 20090046.773.59$0
Mar 20090042.144.06$0
Feb 2009166032.814.63$5,446
Jan 20090035.865.37$0
Dec 20080037.105.98$0
Nov 20080055.496.86$0
Oct 2008169075.246.92$12,716
Sep 200800101.767.88$0
Aug 200800114.228.48$0
Jul 20081500131.0811.39$19,662
Jun 200800131.3313.03$0
May 20081630123.1711.57$20,077
Apr 20081460110.3110.45$16,105
Mar 200800101.909.66$0
Feb 20080092.538.77$0
Jan 2008164090.388.21$14,822
Dec 20070088.337.30$0
Nov 20070091.677.29$0
Oct 20070082.856.92$0
Sep 2007166075.846.24$12,589
Aug 20070069.066.39$0
Jul 20070070.906.39$0
Jun 20070062.007.55$0
May 2007160058.747.85$9,398
Apr 20070059.617.81$0
Mar 20070056.927.30$0
Feb 2007165055.108.22$9,092
Jan 20070050.306.73$0
Dec 20060056.656.92$0
Nov 20060054.207.62$0
Oct 2006164054.906.01$9,004
Sep 20060060.085.04$0
Aug 20060068.717.34$0
Jul 2006166069.376.34$11,515
Jun 20060066.286.38$0
May 20060066.016.42$0
Apr 2006168064.397.36$10,818
Mar 20060056.707.08$0
Feb 20060057.597.75$0
Jan 20060060.598.93$0
Dec 2005165054.9413.42$9,065
Nov 20050054.6910.59$0
Oct 20050058.3413.80$0
Sep 20050061.4512.08$0
Aug 200587061.519.80$5,351
Jul 20050055.697.84$0
Jun 200587052.337.38$4,553
May 200586045.226.65$3,889
Apr 20050049.207.36$0
Mar 200595050.377.15$4,785
Feb 200586045.226.31$3,889
Jan 20050043.166.32$0
Dec 20040039.866.75$0
Nov 20040045.286.33$0
Oct 200484049.706.52$4,175
Sep 20040043.245.28$0
Aug 2004175042.375.55$7,415
Jul 20040038.286.08$0
Jun 20040036.106.43$0
May 2004167037.486.49$6,259
Apr 20040034.475.86$0
Mar 200499034.365.53$3,402
Feb 200472032.455.51$2,336
Jan 20040032.036.30$0
Dec 2003178030.266.30$5,386
Nov 20030028.804.60$0
Oct 20030028.174.76$0
Sep 200364026.314.75$1,684
Aug 200357029.765.13$1,696
Jul 2003153029.415.17$4,500
Jun 20030028.565.98$0
May 20030026.595.97$0
Apr 2003171026.675.41$4,561
Mar 20030031.146.10$0
Feb 20030033.487.93$0
Jan 200387030.315.58$2,637
Dec 200245026.914.85$1,211
Nov 20020024.664.14$0
Oct 2002101126.464.23$2,677
Sep 20020127.443.64$4
Aug 200298125.963.16$2,547
Jul 200260124.583.06$1,478
Jun 20020123.733.34$3
May 200283124.663.58$2,050
Apr 200276123.653.51$1,801
Mar 2002136122.003.10$2,995
Feb 20020118.222.38$2
Jan 200275117.172.38$1,290
Dec 20010116.932.36$2
Nov 2001179118.072.41$3,237
Oct 20010119.782.53$3
Sep 200184124.262.25$2,040
Aug 20010124.873.05$3
Jul 2001127123.933.20$3,042
Jun 200181124.563.82$1,993
May 20010125.524.31$4
Apr 2001143124.685.34$3,535
Mar 20010124.545.38$5
Feb 20010127.755.77$6
Jan 2001100127.478.40$2,755
Dec 20000126.889.12$9
Nov 200096132.215.66$3,098
Oct 2000102131.235.15$3,191
Sep 200093131.875.19$2,969
Aug 20000129.644.54$5
Jul 200027128.534.09$774
Jun 20000129.304.40$4
May 20000127.263.68$4
Apr 200059124.513.12$1,449
Mar 200079128.422.86$2,248
Feb 20000127.622.73$3
Jan 200081125.272.48$2,049
Dec 199983124.282.42$2,018
Nov 19990123.192.43$2
Oct 199975120.982.80$1,576
Sep 199980121.752.62$1,743
Aug 19990119.262.88$3
Jul 199985117.892.37$1,523
Jun 199994115.942.36$1,501
May 199999115.792.32$1,566
Apr 199986115.102.21$1,301
Mar 19990112.471.84$2
Feb 1999019.981.82$2
Jan 19990110.381.90$2
Dec 19988719.201.77$802
Nov 1998124110.892.19$1,353
Oct 19980112.421.97$2
Sep 1998103112.592.08$1,299
Aug 199856111.301.91$635
Jul 19980111.742.24$2
Jun 1998120111.242.24$1,351
May 199878112.622.21$987
Apr 199872113.042.51$941
Mar 19980112.802.31$2
Feb 1998136113.952.30$1,900
Jan 19980114.702.15$2
Dec 1997101116.322.41$1,651
Nov 1997101118.193.09$1,840
Oct 199784119.253.15$1,620
Sep 19970117.742.95$3
Aug 1997102117.862.55$1,824
Jul 199779117.582.25$1,391
Jun 1997102117.242.26$1,761
May 1997104118.972.31$1,975
Apr 1997105117.882.08$1,879
Mar 199791118.951.94$1,726
Feb 19970120.492.21$2
Jan 1997118123.483.54$2,774
Dec 1996112123.32$2,612
Nov 19960121.97$0
Oct 199694123.31$2,191
Sep 199696122.22$2,133
Aug 199699120.26$2,006
Jul 199699119.55$1,935
Jun 199697118.73$1,817
May 1996101119.43$1,962
Apr 1996206121.51$4,431
Mar 1996294119.38$5,698
Feb 199664116.98$1,087
Jan 19960117.07$0
Dec 199590117.19$1,547
Nov 199537116.00$592
Oct 19950115.43$0
Sep 199557116.18$922
Aug 199583115.92$1,321
Jul 19950115.24$0
Jun 199564116.41$1,050
May 199548117.56$843
Apr 19950117.73$0
Mar 199560116.44$986
Feb 199563116.58$1,045
Jan 199561115.92$971
Dec 19940115.03$0
Nov 199482115.90$1,304
Oct 199453115.58$826
Sep 19940015.29$0
Aug 1994119016.13$1,919
Jul 19940017.56$0
Jun 19940017.09$0
May 19940015.88$0
Apr 1994160014.14$2,262
Mar 19940012.46$0
Feb 19940012.50$0
Jan 19940012.66$0
Dec 19930012.33$0
Nov 19930114.49$0
Oct 19930115.85$0
Sep 1993174115.03$2,615
Aug 19930115.66$0
Jul 19930115.46$0
Jun 19930116.79$0
May 19930117.68$0
Apr 19930118.05$0
Mar 1993154118.14$2,794
Feb 19930117.90$0
Jan 19930116.93$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.

Mar 2026 — as filed, then multipliedworked
Oil                   62 bbl  × $ 89.75 =     $5,565
Casinghead gas         0 Mcf  × $  3.15 =         $0

────────────────────────────────────────────────────
Month total                                   $5,565

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. 08/O/12670 is the state's own key, not one this site invented.